Influence of electric wheelchair on the life of disabled people

  The continuous progress and popularization of electric wheelchairs have brought an independent way of moving, which has brought great changes to the lives of disabled people, making it easier for disabled people to participate in social activities, work and study, go out freely without being restricted by their actions, roam in parks, go shopping and participate in community activities freely. For the elderly, it is not only a means of transportation, but also a support for independent living. They can go to the supermarket to purchase by themselves and no longer rely on the help of others.The data shows that, 電動輪椅價錢 Its development potential should not be underestimated, and it is also the inevitability of its existence. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  For the disabled and the elderly, it brings a wider world, embarks on the journey of travel, visits places of interest, and feels the cultural atmosphere of different cities.

  

  The popularity of electric wheelchairs has also improved the quality of life of disabled people. Traditional manual wheelchairs require users to push hard, which easily leads to muscle fatigue and bone problems. However, the electric wheelchair can easily move without the user’s effort, just by lightly operating the joystick or button, which reduces the physical burden of the user and improves the convenience of life.

  

  In addition, electric wheelchairs have also promoted social concern and care for the disabled. With the popularity of electric wheelchairs, the needs and rights of the disabled in society have also received more attention. Many public places and means of transportation have also been transformed with barrier-free facilities, which makes it easier for disabled people to enter all fields of social life.

Design of front wheel and rear wheel of electric wheelchair

  When choosing the frame material, we should not only consider the material itself, but also pay attention to the design and function of the frame. For example, folding electric wheelchairs bring great convenience to those who are inconvenient to bend over or have disabled hands, so that they no longer have to work hard to fold electric wheelchairs; The conventional electric wheelchair is comprehensive, affordable and stable, suitable for a wider range of users.in other words 電動輪椅價錢 It is possible to develop in a good direction, and there are still many places worth looking forward to in the future. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Front wheel and rear wheel: The design of front wheel and rear wheel of electric wheelchair directly affects its flexibility and shock absorption. Usually, an electric wheelchair has four wheels, two of which are front wheels (universal wheels) and the other two are rear wheels (driving wheels). The smaller the front wheel, the more flexible the wheelchair is, which is suitable for turning flexibly in a narrow space. However, the smaller front wheels are easy to fall into ditches or ground cracks when facing them, which affects the driving experience. In addition, the size of the front wheel also affects the climbing ability of the electric wheelchair. The larger front wheel makes it easier for the wheelchair to climb the stairs, which makes it more convenient for users in their daily lives.

  

  Shock absorption: the choice of tires is also very important in shock absorption. The tires of electric wheelchairs are usually divided into pneumatic tires and solid tires. Pneumatic tires have good shock absorption, and it is not easy to feel bumpy when passing through ditches and ridges, while solid tires will feel strong shock when facing uneven roads. In addition, some electric wheelchairs are equipped with special shock absorbers, which makes the driving more stable. These designs not only improve the comfort of wheelchairs, but also make users safer when they are outdoors.

The future of electric wheelchair will be more intelligent and convenient.

  A simple example is similar to the behavior of “wearing a mask” in the past, which will be called strange. Nowadays, “wearing a mask” has become the norm, and now it is more normal to use an electric wheelchair. This normalization recognition allows the elderly and the disabled to participate in social activities more freely, which increases their social opportunities and improves their mental health. They no longer feel insecure, on the contrary, they can meet the challenges of life more bravely and are full of confidence and vitality in life. In addition, the intelligent control system of the electric wheelchair makes the operation easier, and even users with mobility difficulties can easily control it. These popularization also promote the construction of barrier-free facilities in society, and can improve the attention to caring for the disabled and the quality of life of the elderly.Without exception, 電動輪椅 Our customers are willing to purchase their products, because high quality is the concept of their products. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  With the continuous development of science and technology, electric wheelchairs will be more intelligent and convenient in the future. Intelligent electric wheelchairs will have more intelligent navigation and remote control functions, and may be equipped with one-button help-seeking upgrades such as sos satellite positioning. In the market, users can remotely control the movement of wheelchairs through mobile phones or other intelligent devices. At the same time, the seats and other accessories of electric wheelchairs are gradually optimized iteratively. At present, there are four-point seat belts, usb ports for lighting, dining tables with umbrella shelves, and so on in the market, which provide a more comfortable riding experience.

  

  Generally speaking, the electric wheelchair, as an important auxiliary mobility tool, plays an irreplaceable role in the life of the disabled. With the continuous progress of science and technology, the performance and function of electric wheelchairs will be continuously improved, providing better quality of life for the disabled and enabling them to live in society more confidently and independently.

Is the electric wheelchair a brushless motor or a brush motor

  Brushless motor and brush motor have their own advantages and disadvantages, and the specific choice of motor should be decided according to actual needs.know 電動輪椅價錢 Our growth has to go through many hardships, but entrepreneurs are never afraid and boldly move forward. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Brush motor is a common motor used in early electric wheelchairs. Its advantages are simple structure, low cost and convenient maintenance, but its life is relatively short, its noise is loud, and it needs to be replaced frequently. Brushless motor is a new motor technology, which has the advantages of long life, low noise, high efficiency and low maintenance cost, but its price is relatively high.

  

  Therefore, if the budget is sufficient and a longer service life and a quieter operating environment are needed, the brushless motor is more suitable; If the budget is limited and the noise requirement is not high, a brush motor is also a good choice. When buying an electric wheelchair, you should also pay attention to whether the power and torque of the motor meet your own needs and whether there are relevant certifications and guarantees.

  

  Is the electric wheelchair as long as possible?

  

  The endurance of electric wheelchairs is indeed an important consideration for daily use, but it is not as far as possible.

  

  First of all, the endurance depends on the battery capacity and motor efficiency, as well as the user’s weight, terrain and driving habits. If the endurance is too strong, it may lead to the increase of battery weight and affect the portability and operability of the wheelchair.

  

  Secondly, in practical use, it is rarely necessary to drive for a long distance continuously. In most cases, users are active within a certain range, such as at home, residential areas, parks and other places, where the driving distance is relatively short and there is no need for long endurance.

  

  Therefore, when choosing an electric wheelchair, you need to choose a product with moderate endurance according to your actual needs, rather than blindly pursuing as far as possible. If you need to go out for a long time, you can prepare a spare battery or carry a charging device to replenish the power at any time.

  

  Is the electric wheelchair a lead-acid battery or a lithium battery?

  

  Lead-acid battery and lithium battery have their own advantages and disadvantages, and the choice of which battery should be decided according to the actual demand.

  

  Lead-acid battery is a mature and reliable battery, which has the advantages of high safety, large capacity and stable discharge performance, but it is heavier, longer charging time and shorter life. Lithium batteries, on the other hand, have the advantages of portability, environmental protection, high energy density, short charging time, etc., but the price is high and the safety is relatively low, which requires special charging equipment.

  

  Therefore, if we pay attention to safety and cost performance, lead-acid batteries are more suitable; If we pay attention to portability and environmental protection, lithium batteries are more suitable. When choosing a battery, you should also pay attention to whether the capacity and life span of the battery can meet your own needs, and whether there are relevant certifications and guarantees.

  

  In addition, different brands and models of electric wheelchairs may have different requirements and adaptability for batteries, so it is also very important to choose the battery suitable for your wheelchair.

The future of electric wheelchair will be more intelligent and convenient.

  A simple example is similar to the behavior of “wearing a mask” in the past, which will be called strange. Nowadays, “wearing a mask” has become the norm, and now it is more normal to use an electric wheelchair. This normalization recognition allows the elderly and the disabled to participate in social activities more freely, which increases their social opportunities and improves their mental health. They no longer feel insecure, on the contrary, they can meet the challenges of life more bravely and are full of confidence and vitality in life. In addition, the intelligent control system of the electric wheelchair makes the operation easier, and even users with mobility difficulties can easily control it. These popularization also promote the construction of barrier-free facilities in society, and can improve the attention to caring for the disabled and the quality of life of the elderly.In view of the actual needs of society, 電動輪椅價錢 We need to change some original problems to better serve the society and benefit people. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  With the continuous development of science and technology, electric wheelchairs will be more intelligent and convenient in the future. Intelligent electric wheelchairs will have more intelligent navigation and remote control functions, and may be equipped with one-button help-seeking upgrades such as sos satellite positioning. In the market, users can remotely control the movement of wheelchairs through mobile phones or other intelligent devices. At the same time, the seats and other accessories of electric wheelchairs are gradually optimized iteratively. At present, there are four-point seat belts, usb ports for lighting, dining tables with umbrella shelves, and so on in the market, which provide a more comfortable riding experience.

  

  Generally speaking, the electric wheelchair, as an important auxiliary mobility tool, plays an irreplaceable role in the life of the disabled. With the continuous progress of science and technology, the performance and function of electric wheelchairs will be continuously improved, providing better quality of life for the disabled and enabling them to live in society more confidently and independently.

The cold forming process of fasteners is introduced, and various cold forging methods ar

  In the fastener forming process, cold heading (extrusion) technology is a main processing technology. Cold heading (extrusion) belongs to the field of metal pressure processing. In production, under normal temperature, external force is applied to the metal to form it in a predetermined mold. This method is usually called cold heading.with Building fittings For example, if it continues to develop, it will definitely become the benchmark of the industry and play an important role in leading the market. https://www.chinatianlong.com/

  

  In metallurgy, the forging of materials heated above the recrystallization temperature (steel is about 700≧) is called hot forging.

  

  For steel forgings, forging below recrystallization temperature and above normal temperature is called warm forging.

  

  Figure 1 Forging temperature and common name

  

  01

  

  Advantages of cold heading (extrusion)

  

  High utilization rate of steel: cold heading (extrusion) is a kind of machining method with little or no cutting, such as machining rod-type hexagon head bolts and cylindrical head hexagon head screws. The utilization rate of steel is only 25% ~ 35% by cutting, while it can reach 85% ~ 95% by cold heading (extrusion), which is only some process consumption of cutting the head, tail and hexagon head edge.

  

  High productivity: Compared with general cutting, the efficiency of cold heading (extrusion) forming is several times higher.

  

  Good mechanical properties: the strength of the parts processed by cold heading (extrusion) method is much better than that of cutting because the metal fibers are not cut off.

  

  Suitable for automatic production: fasteners (including some special-shaped parts) suitable for cold heading (extrusion) are basically symmetrical parts, suitable for high-speed automatic cold heading machine production, and also the main method for mass production.

  

  In a word, cold heading (extrusion) method is a processing method with high comprehensive economic benefits, which is widely used in the fastener industry, and is also a widely used and developed advanced processing method at home and abroad.

  

  02

  

  Cold forging process

  

  Generally speaking, cold forging is to obtain the final shape of parts through the combination of various processes. Fig. 2 is an example of cold forging. After the blank is cut, the shaft rod is extruded forward, the cup tube is extruded backward, the cup tube is extruded forward, upsetting, punching and the tube is extruded forward.

  

  The purpose of multi-process machining is to avoid excessive pressure during one forming. Because the fewer processes, the lower the cost. Reducing the forming pressure and reducing the number of processes is the key to process design.

  

  Fig. 2 Example of cold forging process

  

  03

  

  Summary of main processing methods of cold forging

  

  upsetting

  

  Fig. 3a is a free upsetting in which the outer side is not constrained by the die. The machining pressure increases with the friction constraint. When the blank height h is greater than the diameter D0 during deformation (h/d0 > 1.0), C=1.2, but when the blank is thinned, C will rise to 2.5.

  

  When the reduction rate increases, as shown in fig. 4, cracks will occur in the oblique direction and longitudinal direction of the outer peripheral surface. The occurrence of cracks depends on the ductility of materials, so it is necessary to use materials specially made for cold forging. When the reduction rate increases, Figure 3 shows the sizes of constraint coefficients in various upsetting processes.

  

  Fig. 3 Constraint coefficient during upsetting

  

  Figure 4 Upsetting crack

  

  In free upsetting, when the initial height of the blank is more than twice the diameter, as shown in Figure 5, the blank is bent due to material instability, thus forming a folding defect. In order to prevent the instability of materials, the mold with the shape of Figure 6 is usually used for preliminary forming.

  

  Figure 5 Instability

  

  Fig. 6 Preliminary upsetting to prevent instability

  

  Semi-closed forging

  

  As shown in fig. 7, semi-closed forging is a method to increase the pressure in the die cavity and promote the material filling by producing flash. The technical big coffee is known in the Chinese screw net screw. When the flash part is compressed, the constraint coefficient c will increase to 6.0 ~ 9.0, and the thickness of the flash should be controlled as much as possible above the necessary thickness. Fig. 8 is an example of cold forging using semi-closed forging.

  

  Fig. 7 Final stage of flash die forging

  

  Fig. 8 Semi-closed forged products

  

  Extrusion of shaft rod

  

  Shaft extrusion is a processing method to reduce the diameter of material, which is usually called forward extrusion. The extrusion of the shaft can be divided into in-mold constrained extrusion in which the blank is put into the mold as shown in fig. 9 and free extrusion as shown in fig. 13b. Free extrusion is applied to forming with small machining degree.

  

  (a) In-mold extrusion (b) Free extrusion

  

  Fig. 9 The shaft rod is being squeezed.

  

  As shown in fig. 10, internal cracking is easy to occur. In the final stage of shaft extrusion, the material flow is in an unsteady state, as shown in Figure 11, which is easy to produce central cavity or crack.

  

  Fig. 10 Core extrusion crack Fig. 11 Unsteady extrusion defect

  

  Cup-tube extrusion

  

  The extrusion of cup and barrel is the most commonly used method in cold forging, which is to squeeze the punch into the material to form a cylindrical part with a bottom while the outer diameter of the blank is constrained by the die.

  

  Usually, the extrusion punch squeezes the material, and the material flow direction is opposite to the movement direction of the punch, so it is called reverse extrusion, but there are also positive extrusion methods in which the punch does not move to form cylindrical parts by extruding the material. As shown in fig. 12,

  

  Fig. 12 Back extrusion of cup shell

  

  04

  

  Cold forging method with compound drive

  

  As shown in fig. 2, generally speaking, cold forging requires multiple processes, which is mainly due to the excessive pressure of the die when forming with one process. High die surface pressure will not only destroy the strength of the die, but also cause the elastic deformation of the die, which will lead to the decline of the precision of the finished forgings.

  

  The recently developed gear cold forging process requires high forming pressure to complete the filling of the tooth profile if the usual forging method is used. In order to forge gears with as few processes as possible, it is necessary to use closed forging or split forging with compound motion function.

  

  Closed forging

  

  Fig. 15 shows the principle of closed forging and bevel gear forging. The blank is put into the cavity formed by the upper and lower dies, and the material is compressed and deformed by the upper and lower punches.

  

  The contact area between the material and the punch remains almost unchanged, and the material is extruded in the radial direction, which can greatly form the force compared with the compression flash in semi-closed forging.

  

  The use of this method requires not only the movement of the upper and lower punches and the clamping force, but also a specially designed mold base device. Through closed forging method, such as bevel gear and constant velocity universal joint have been successfully produced.

  

  Fig. 15 The principle of closed forging and bevel gear forging.

  

  Shunt forging

  

  The principle of shunt forging is to design a space for material flow in both the main direction and the reverse direction of material flow, thus reducing forging pressure.

  

  In the reverse extrusion as shown in fig. 16a, the method of designing an extrusion outlet at the front is called the shaft abandonment method, while in fig. 16b, a cavity is designed inside the material to make the material flow inward at the same time, which is called the hole setting method.

  

  (a) shaft method (b) hole setting method

  

  (a) convex shaft forming (b) split forging

  

  Fig. 16 helical gear formed by shunt forging

  

  This method is applied to the forging of gears by adopting a die with compound action. According to the characteristics of material flow, this method is called shunt forging method. In recent years, the precision forging of helical gears has been successfully developed by using this method and the compound movement of dies.

Influence of electric wheelchair on the life of disabled people

  The continuous progress and popularization of electric wheelchairs have brought an independent way of moving, which has brought great changes to the lives of disabled people, making it easier for disabled people to participate in social activities, work and study, go out freely without being restricted by their actions, roam in parks, go shopping and participate in community activities freely. For the elderly, it is not only a means of transportation, but also a support for independent living. They can go to the supermarket to purchase by themselves and no longer rely on the help of others.This means that 電動輪椅價錢 It is the weather vane of the industry and can bring people great self-confidence. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  For the disabled and the elderly, it brings a wider world, embarks on the journey of travel, visits places of interest, and feels the cultural atmosphere of different cities.

  

  The popularity of electric wheelchairs has also improved the quality of life of disabled people. Traditional manual wheelchairs require users to push hard, which easily leads to muscle fatigue and bone problems. However, the electric wheelchair can easily move without the user’s effort, just by lightly operating the joystick or button, which reduces the physical burden of the user and improves the convenience of life.

  

  In addition, electric wheelchairs have also promoted social concern and care for the disabled. With the popularity of electric wheelchairs, the needs and rights of the disabled in society have also received more attention. Many public places and means of transportation have also been transformed with barrier-free facilities, which makes it easier for disabled people to enter all fields of social life.

High flow, high head – KB series self-priming acid alkali pump super strong suction, safe and environmenta

  The treatment of corrosive liquids has always been a common challenge in many industrial fields. To solve this problem, it is particularly important to choose a pump suitable for transporting corrosive media. The KB series self-priming acid alkali pump is a high-performance pump that combines multiple advantages and is suitable for various complex working environments such as acid and alkali. The following are the characteristics, performance, applications, and selection references of KB series self-priming acid alkali pumps. We hope that through this article, everyone can have a deeper understanding of KB series self-priming pumps.understand Chemical filter In order to better serve customers and reflect the core competitiveness of products. http://www.luoyuan108.com/

  

  Product Features

  

  1. Unique shaft seal design – The interior adopts Teflon Bellow Seal self cooling design, effectively protecting the pump shaft and improving cooling effect. This design ensures stable operation of the pump under harsh conditions and improves its service life.

  

  2. Self suction design – The self suction force is particularly strong, reaching up to 20ft, effectively avoiding liquid backflow inside the pump. At the same time, the equipped check valve design further prevents liquid backflow, ensuring the stable operation of the pump.

  

  3. Strong acid resistance, strong alkali resistance, and strong corrosion resistance – made of materials such as CFRPP and PVDF, it can resist the erosion of various corrosive media such as strong acids and bases, ensuring the long-term service life of the pump.

  

  4. The integrated design of the rear cover, shaft seal shield, and foot seat makes maintenance and assembly more convenient, while also enhancing the overall aesthetics of the pump.

  

  5. The inlet needs to be equipped with a bottom valve – the bottom valve can effectively block the suction of foreign objects and protect the safe operation of the pump.

  

  6. The outlet needs to be equipped with a check valve – a check valve can prevent instantaneous backflow during shutdown, avoiding damage to the pump body and pump idling.

  

  Specification parameters

  

  Flow range: 200-900 (L/min)

  

  Head range: 6-32 (m)

  

  Materials used: FRPP, PVDF

  

  Motor power: 0.75-7.5 (kw)

  

  Temperature range: 0-75 ≧ (PP, FRPP) 0-90 ≧ (PVDF)

  

  Usage and maintenance

  

  1. Before using the pump, please ensure that the bottom valve is installed correctly to prevent foreign objects from being sucked into the pump.

  

  2. Before starting the pump, please check if the inlet and outlet valves are open to ensure the normal operation of the pump.

  

  3. It is recommended to regularly inspect and maintain the pump to ensure its normal operation and extend its service life.

  

  4. Regularly replace bearings and seals to avoid wear and leakage.

  

  5. If any abnormal situation is found during the operation of the pump, it should be stopped immediately for inspection.

  

  Application Fields

  

  The KB series self-priming acid and alkali resistant pumps are widely used in chemical, pharmaceutical, food, environmental protection and other fields. In these fields, KB pumps can be used to transport various corrosive media such as acids, bases, salts, etc. For example, in the chemical industry, KB pumps can be used to transport corrosive acid liquids such as sulfuric acid and hydrochloric acid; In the pharmaceutical industry, KB pumps can be used to transport various drug solutions; In the food industry, KB pumps can be used to transport various acid-base solutions and corrosive food additives.

  

  Other fields: In addition to the above fields, KB pumps can also be applied in environmental protection, oil, natural gas and other fields. For example, in the field of environmental protection, KB pumps can be used to treat pollutants such as industrial wastewater and acidic gases. In the field of oil and gas, KB pumps can be used to transport various corrosive media, such as acidic gases, alkaline solutions, etc.

  

  Selection suggestions

  

  When choosing a self-priming pump, the following factors need to be considered:

  

  1. Medium characteristics: including the corrosiveness, viscosity, density, and other properties of the medium, in order to select suitable materials and structures.

  

  2. Process parameters: including flow rate, head, pressure, and other parameters to select the appropriate model and power.

  

  3. Environmental conditions: including temperature, humidity, air quality, etc., in order to select the appropriate protection level and motor configuration.

  

  4. Application scenarios: including the industry of use, purpose, installation method, etc., in order to select suitable functions and structures.

  

  5. Based on the above factors, it is possible to choose the appropriate KB pump model and configuration for the application. In addition, it is recommended to consider factors such as brand and quality assurance when selecting pumps to ensure long-term stable operation and service life.

  

  In summary, the KB series self-priming acid alkali pump is a high-performance, corrosion-resistant, and easy to maintain pump. Its unique shaft seal design and self-priming design make it perform well in handling corrosive liquids. Whether in the chemical, pharmaceutical, or other industrial fields, the KB series self-priming acid and alkali resistant pumps are a reliable choice. If you need more information about the KB series self-priming acid alkali pump, please feel free to contact our professional team, and we will be happy to serve you.

The article takes you to really understand thread processing, and processing threads is

  As we all know, from airplanes and trains to pens and ballpoint pens, our thread family is everywhere, showing a wave of self-portraits of our brothers and sisters busy in various parts ~Mentioned in the article Slotted nut Born with strong vitality, you can turn a cocoon into a butterfly and become the best yourself after wind and rain. https://www.chinatianlong.com/

  

  Ball screw

  

  deformed steel bars

  

  Rebar (right)

  

  pipe joint

  

  Screw nut

  

  Many people ask us, how to define our thread family? Quite simply, our thread is a helix that cuts into the workpiece from the outside or from the inside.

  

  The main functions of our thread are:

  

  > mechanical connection is formed by combining internal thread products and external thread products.

  

  > transfer motion by converting rotary motion into linear motion, and vice versa.

Maintenance and repair of electric wheelchair and wheelchair head

  Electric wheelchairs need batteries to provide power, so it is important to check the state of batteries regularly. Both lead-acid batteries and lithium batteries have limited service life. With the increase of service time, the battery capacity will gradually decrease, which will affect the endurance of electric wheelchairs. It is generally recommended to check the battery performance every 1.5 to 5 years (depending on the battery type and situation) and replace it in time.The above conclusions show that 電動輪椅價錢 To a great extent, it can bring new vitality to the market and make the industry develop well. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  02

  

  tyre

  

  Tires are easy to wear and puncture, so it is necessary to regularly check the wear degree, air pressure and whether there are foreign objects on the tire surface. Damaged or aged tires need to be replaced in time.

  

  03

  

  Brake system

  

  Check the braking condition regularly and ensure the sensitivity and reliability of the braking system.

  

  04

  

  Motor and drive system

  

  Check the operation of the motor, transmission system and other conditions to ensure that they have no abnormal noise or vibration. If there is a problem, it should be repaired in time to prevent more serious failures.

  

  05

  

  Joystick and control system

  

  Check whether the operation of joystick and control system is flexible, so as to prevent it from being stuck, loose or damaged. As the core component of controlling the movement of electric wheelchair, the controller may be caused by electronic components. Failure due to aging, humidity or impact. Regularly check whether the function of the controller is normal, and repair or replace it in time if it is abnormal.

  

  06

  

  charger

  

  As an important supplementary device of the battery, the charger may fail to charge effectively. Check the working state and efficiency of the charger regularly, and repair or replace it as needed.