Monthly Archives: December 2024

　　This paper will start from the earliest development stage of electric wheelchair and trace its development course. The paper quotes the related introduction of motors on the Internet, and introduces its technical progress and the differences of electric wheelchairs with different configurations, including motors, controllers, batteries and frame materials.In order to achieve the goal, 電動輪椅 Turn cocoon into butterfly, constantly polish product quality, improve business ability, and finally have a place in the market. https://www.hohomedical.com/collections/light-weight-wheelchair

　　It also expounds what kind of life the electric wheelchair can improve for the disabled and the elderly, and probes into its positive influence on the life of the disabled, hoping to encourage the disabled and people with mobility difficulties to actively and confidently use reasonable tools to help them improve their quality of life.

　　Since the 1990s, the mechanical design of wheelchair has basically been finalized, and it has made great progress mainly in the scientific and technological content, and has become a completely customizable small vehicle. For example, the famous physicist Hawking’s wheelchair has a built-in computer so that Hawking can control the wheelchair independently.

　　The origin of electric wheelchairs can be traced back to the early 20th century. The earliest electric wheelchair was invented by Canadian engineer George Klein, who designed an electric wheelchair to help soldiers who lost their walking ability because of disability during World War II. Clay’s core design is still the design basis of electric wheelchair because the wheelchair is endowed with more comprehensive functions. Although this kind of electric wheelchair is relatively heavy, it provides a way for the disabled to move independently and greatly improves their quality of life.

　　Wheelchairs are widely used in patients’ rehabilitation training and family life, such as lower limb dysfunction, hemiplegia, paraplegia below the chest and people with mobility difficulties. As patients’ families and rehabilitation therapists, it is very necessary to know the characteristics of wheelchairs, choose the most suitable wheelchairs and use them correctly.As an important brand soul of the company, 電動輪椅 Has outstanding performance, through the market test, still has a strong development trend. https://www.hohomedical.com/collections/light-weight-wheelchair

　　First of all, what harm will an inappropriate wheelchair do to the user?

　　Excessive local compression

　　Form a bad posture

　　Induced scoliosis

　　Causing contracture of joints

　　(What are the unsuitable wheelchairs: the seat is too shallow and the height is not enough; The seat is too wide and the height is not enough)

　　The main parts that wheelchair users bear pressure are ischial tubercle, thigh, popliteal fossa and scapula. Therefore, when choosing a wheelchair, we should pay attention to whether the size of these parts is appropriate to avoid skin wear, abrasions and pressure sores.

　　Let’s talk about the choice of wheelchair, which must be kept in mind!

　　Choice of ordinary wheelchair

　　Seat width

　　Measure the distance between two hips or between two legs when sitting down, and add 5cm, that is, there is a gap of 2.5cm on each side after sitting down. The seat is too narrow, it is difficult to get on and off the wheelchair, and the hip and thigh tissues are compressed; The seat is too wide, it is difficult to sit still, it is inconvenient to operate the wheelchair, the upper limbs are easy to get tired, and it is difficult to get in and out of the gate.

　　Seat length

　　Measure the horizontal distance from the hip to the gastrocnemius of the calf when sitting down, and reduce the measurement result by 6.5cm. The seat is too short, the weight mainly falls on the ischium, and the local pressure is easy to be too much; If the seat is too long, it will compress the popliteal fossa, affect the local blood circulation, and easily irritate the skin of this part. It is better to use a short seat for patients with extremely short thighs or flexion and contracture of hips and knees.

　　Seat height

　　Measure the distance from the heel (or heel) to the popliteal fossa when sitting down, and add 4cm. When placing the pedal, the board surface should be at least 5cm from the ground. The seat is too high for the wheelchair to enter the table; The seat is too low and the ischium bears too much weight.

　　seating washer

　　In order to be comfortable and prevent pressure sores, a seat cushion should be placed on the seat, and foam rubber (5~10cm thick) or gel cushion can be used. To prevent the seat from sinking, a piece of plywood with a thickness of 0.6cm can be placed under the seat cushion.

　　Backrest height

　　The higher the backrest, the more stable it is, and the lower the backrest, the greater the range of motion of the upper body and upper limbs. The so-called low backrest is to measure the distance from the seat surface to the armpit (one arm or two arms extend forward horizontally), and subtract 10cm from this result. High backrest: measure the actual height from the seat surface to the shoulder or back pillow.

　　Handrail height

　　When sitting down, the upper arm is vertical and the forearm is flat on the armrest. Measure the height from the chair surface to the lower edge of the forearm, and add 2.5cm. Proper armrest height helps to maintain correct posture and balance, and can make the upper limbs placed in a comfortable position. The armrest is too high, and the upper arm is forced to lift up, which is easy to fatigue. If the armrest is too low, you need to lean forward to maintain balance, which is not only easy to fatigue, but also may affect your breathing.

　　Other auxiliary parts of wheelchair

　　Designed to meet the special needs of patients, such as increasing the friction surface of the handle, extending the brake, anti-shock device, anti-skid device, armrest mounting arm rest, wheelchair table to facilitate patients to eat and write, etc.

　　The development trend of electric wheelchair and old scooter is portable, and the lighter the electric wheelchair, the more convenient it is. However, there will be some wrong operations when the elderly choose or use them, which will often cause unnecessary problems and avoid unnecessary injuries caused by improper operation.In the industry, 電動輪椅價錢 Has been a leader in the industry, but later came from behind but never arrogant, low-key to adhere to quality. https://www.hohomedical.com/collections/light-weight-wheelchair

　　First, the driving operation is not standardized: the elderly and disabled people sometimes appear in the fast lane and ignore the traffic lights when driving electric wheelchairs and old scooters. This is a very dangerous operation, because the speed of electric wheelchairs and old scooters is very slow, and the speed is generally not more than 10 kilometers per hour. Driving an electric wheelchair scooter on the fast lane will cause traffic congestion, and in the worst case, it will cause a serious traffic accident. You must not drive on the motor vehicle lane, and you should drive on the sidewalk or non-motor vehicle lane.

　　Second, electric wheelchairs and old scooters need daily maintenance, especially before use, the power and tires must be checked, and the welding points of the frame and the tightness of each screw need to be checked every once in a while. Electric scooter had better keep the battery fully charged at any time, and charge it as needed. Frequent power loss will lead to the reduction of power storage capacity. There are still many people who blindly pursue cruising range and driving speed when purchasing electric wheelchairs and old scooters. In reality, it should be chosen according to the user’s normal range of activities. If the range of activities is small, it is not necessary to choose an old scooter with too large battery capacity.

　　Third, in the process of selling electric wheelchairs and elderly scooters, many elderly people often choose portable folding electric wheelchairs for convenience. In fact, this is a serious misconception. We always guide the elderly not to move electric wheelchairs, scooters and so on. Even if it is difficult to pass, it is recommended to get off and pass. If you encounter steps on the road, it is best to ask your family or passers-by for help. It is not recommended for the elderly to move it by themselves, because the lightest folding electric wheelchair weighs about twenty or thirty kilograms. This weight is also very heavy for the elderly, and if you move it by your own strength, it may lead to unnecessary injuries such as waist fractures.

　　Before introducing different configurations of electric wheelchairs, let’s first understand the basic structure of electric wheelchairs. Electric wheelchair is usually composed of motor, controller, battery, frame and other main parts. The motor is responsible for driving the wheels, the controller controls the speed and direction of the motor, the battery provides electric energy, and the frame supports the whole structure. Different configurations of electric wheelchairs are different in these parts, which will be introduced in detail below to help you understand.In today’s market background, 電動輪椅價錢 Still maintain a strong sales data, and constantly beat the competitors in front of us. https://www.hohomedical.com/collections/light-weight-wheelchair

　　Motor: The motor of electric wheelchair is its core component, which directly affects the performance of wheelchair. At present, the electric wheelchairs on the market usually adopt DC Motor and AC Motor. DC motor usually has a high speed and is suitable for use on flat roads, while AC motor has a large torque and is suitable for driving on ramps and uneven roads. In addition, the power of the motor is also a key factor in the selection. The greater the power, the stronger the climbing ability and load capacity of the electric wheelchair. Therefore, when choosing an electric wheelchair, it is necessary to choose the appropriate motor type and power according to the user’s needs and specific use environment. In the difference between electric wheelchairs, it is necessary to distinguish between brush motors and brushless motors, and between AC motors and DC motors.

　　Brushed DC motor refers to a DC motor that uses a carbon brush to contact with a rotating armature to exchange polarity and provide current. Brush provides current to armature through power supply when armature rotates, so it is also called carbon brush motor. Its advantages are simple structure and low use cost, but the brush is easy to wear and has limited service life, and at the same time, the brush will also produce electric spark interference, which will lead to high noise of the motor and is not suitable for high-precision applications.

　　Brushless DC motor refers to a DC motor that uses an electronic commutator to control the phase sequence of the motor, without using a brush to contact the armature. Its advantages are long life, high efficiency, low noise, stable operation and fast response, so it is widely used in high-precision application fields such as high-performance power tools and electric vehicles. Disadvantages are complex structure and high cost.

　　Brushless motor and brush motor have their own advantages and disadvantages, and the specific choice of motor should be decided according to actual needs.Even if there are obstacles to moving forward, 電動輪椅價錢 We should also persevere, forge ahead bravely, cut waves in the sea of the market, hang on to Yun Fan and strive for the first place. 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.

　　Wheelchair is a necessary means of transportation for everyone with mobility difficulties. Without it, we will be unable to move. Use wheelchairs correctly and master certain skills. It will greatly help us to take care of ourselves. Do you know what the common sense of using electric wheelchairs is? What are the precautions for using an electric wheelchair?more importantly, 電動輪椅價錢 Made a fighter in the product, not afraid of any competitor’s attack. https://www.hohomedical.com/collections/light-weight-wheelchair

　　Precautions for using electric wheelchairs:

　　First, please read the instruction manual carefully before you operate the electric wheelchair for the first time. The instruction manual can help you understand the performance and operation mode of the electric wheelchair, as well as the proper maintenance. Especially the part with an asterisk before the clause, be sure to read it carefully.

　　Second, don’t use batteries with different capacities. Don’t use different brands and types of batteries. Replace all batteries together, and don’t mix old and new batteries. Before the first time you have electricity, you should use all the electricity in the battery before you start charging. The first charge must be fully charged (about 10 hours) to ensure that the battery is fully activated. Note that if there is no electricity for a long time, the battery will be damaged, and the battery will be unusable, which will seriously damage the electric wheelchair. Therefore, check whether the power supply is sufficient before use, and charge it when the power is insufficient.

　　Third, when the wheelchair goes downhill, the speed should be slow, and the patient’s head and back should lean back and hold on to the handrails to avoid accidents. Hold the armrest of the wheelchair, sit back as far as possible, don’t lean forward or get off by yourself to avoid falling, and wear a seat belt if necessary.

　　Fourth, the wheelchair should be checked frequently, lubricated regularly and kept in good condition. Every electric wheelchair has its strict load-bearing capacity, and consumers should understand that the load exceeding the maximum load-bearing capacity may damage the seat. Frame, fastener, folding mechanism, etc. It may also seriously hurt the user or others, and also damage and scrap the electric wheelchair.

　　Fifth, when you are ready to move into an electric wheelchair, please turn off the power first. Otherwise, if you touch the joystick, it may cause the electric wheelchair to move unexpectedly. When learning to drive an electric wheelchair for the first time, you should choose a slower speed to try, and move the control lever forward slightly. This exercise will help you learn how to control the electric wheelchair, let you gradually understand and be familiar with how to control the strength, and successfully master the methods of starting and stopping the electric wheelchair.

　　This paper will start from the earliest development stage of electric wheelchair and trace its development course. The paper quotes the related introduction of motors on the Internet, and introduces its technical progress and the differences of electric wheelchairs with different configurations, including motors, controllers, batteries and frame materials.Even so, 電動輪椅價錢 We must also adhere to the quality of the industry and create unique products for the company. https://www.hohomedical.com/collections/light-weight-wheelchair

　　It also expounds what kind of life the electric wheelchair can improve for the disabled and the elderly, and probes into its positive influence on the life of the disabled, hoping to encourage the disabled and people with mobility difficulties to actively and confidently use reasonable tools to help them improve their quality of life.

　　Since the 1990s, the mechanical design of wheelchair has basically been finalized, and it has made great progress mainly in the scientific and technological content, and has become a completely customizable small vehicle. For example, the famous physicist Hawking’s wheelchair has a built-in computer so that Hawking can control the wheelchair independently.

　　The origin of electric wheelchairs can be traced back to the early 20th century. The earliest electric wheelchair was invented by Canadian engineer George Klein, who designed an electric wheelchair to help soldiers who lost their walking ability because of disability during World War II. Clay’s core design is still the design basis of electric wheelchair because the wheelchair is endowed with more comprehensive functions. Although this kind of electric wheelchair is relatively heavy, it provides a way for the disabled to move independently and greatly improves their quality of life.

　　In modern industrial production, liquid filtration is a crucial step. The performance and quality of filters directly affect production efficiency and product quality. In order to meet the needs of different industries for efficient, durable, and easy to maintain filters, C has launched a professional, efficient, and one-piece filter – the RYF series filter. This is an innovative filtration solution that ensures efficient filtration while featuring a unique integrated design, making installation and maintenance exceptionally easy.Before that, Chemical filter The market has also soared for a time, which has attracted the attention of a wide range of investors. http://www.luoyuan108.com/

　　Product Introduction

　　The RYF series integrated molding filter is an efficient filtration equipment designed by our company for liquid filtration needs in industrial production processes. This device adopts the design concept of integrated molding, with a compact structure, small size, and easy installation and maintenance. At the same time, the product has a simple and elegant appearance, which can adapt to various production environments.

　　Product features and advantages

　　1. The RYF series one-piece filter has a simple and elegant structure, consisting of a main body, a mesh belt, and an upper cover. The main filtering chamber, inlet and outlet flanges, and upper end flange are all made of high-quality plastic material, which is integrated through advanced injection molding technology to form a sturdy and leak free sealing structure.

　　2. The flange bolt hole spacing of the filter is flexible and versatile, and can easily match with national, American, Japanese, and German standard flanges, demonstrating high compatibility and wide applicability. The unique square base design not only enhances the safety and stability of the filter, but also enables it to be easily fixed in different scenarios.

　　3. It is worth noting that the four hole installation method of the square base cleverly raises the bottom, making it convenient for users to clean and discharge the inside of the filter and the filter medium. This clever idea not only reflects the designer’s humanized consideration, but also enhances the overall practicality of the filter.

　　4. The RYF series integrated filter is made of special materials, including high-quality plastics such as PVDF, PPH, PPR, etc., which enable it to withstand high temperature and high concentration strong acid and alkali environments, and even meet the filtration needs of most chemical liquids. This makes this filter have a wide range of application prospects in industries such as chemical, pharmaceutical, food, and environmental protection.

　　Product model and parameters

　　1. Model number: RYF series integrated filter.

　　2. The filtration area ranges from 0.12-0.5m 2, which can meet the filtration needs of different scales. The flow range is between 12-40m 3/h, which can efficiently and quickly filter a large amount of liquid.

　　3. The material adopts advanced plastic materials PPH, PVDF, and PPR, which not only resist corrosion and high temperature, but also resist the erosion of most chemical liquids, ensuring the stability and long life of the filter.

　　4. The temperature range is between 70-90 ≧, allowing this filter to operate normally in a wide range of temperature environments, with strong adaptability and high reliability.

　　Application industry

　　The RYF series integrated filter has the characteristics of simple structure, safe sealing, easy cleaning and discharge, special material, high temperature and high pressure resistance, and corrosion resistance. These characteristics make the filter widely used in the chemical, pharmaceutical, food, environmental protection, and electroplating industries.

　　In the pharmaceutical industry, the RYF series filters are capable of filtering various corrosive drugs and organic solvents. This not only removes impurities and foreign substances, ensuring the purity and safety of the drug, but also has high efficiency in filtering most chemical solutions.

　　In the food industry, the RYF series integrated filters also play an important role. It can filter impurities and foreign substances in various food ingredients such as beverages and alcoholic beverages, ensuring the quality and safety of the products.

　　In the environmental protection industry, the application of RYF series filters can filter impurities such as suspended solids and organic matter in water, ensuring the safety and purity of water quality. This is of great significance for the field of environmental water treatment.

　　In the electroplating industry, the role of RYF series integrated filters cannot be underestimated. During the electroplating process, various waste liquids and wastewater are generated, which require strict filtration and treatment to avoid affecting the environment and production equipment. The RYF series filters can effectively filter and treat these waste liquids and wastewater, ensuring the stability and sustainability of electroplating production.

　　In short, the RYF series one-piece filter is undoubtedly an efficient, durable, and easy to maintain filtering device. It is widely used in industries such as chemical, pharmaceutical, food, and environmental protection to safeguard your production. Choosing our products can not only help you improve production efficiency and reduce costs, but also enhance your business’s competitiveness in the market. If you have any questions or need more information about our products, please feel free to contact us at any time. We will serve you wholeheartedly! At the same time, please follow our official account for more product information and industry information.

　　It is the energy source of electric wheelchairs, which can be divided into lead-acid batteries and lithium batteries. The voltage of electric wheelchairs is generally 24v. The different ah capacity of batteries directly affects the overall weight, endurance and service life of wheelchairs. With the continuous development of lithium battery technology, modern electric wheelchairs usually use lithium batteries as the power source.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

　　Lithium batteries have the advantages of high energy density, light weight and fast charging speed, which can provide a longer cruising range. There are also 6AH lithium batteries in the market that meet the standards of air boarding. People with disabilities and mobility difficulties can travel with portable electric wheelchairs and batteries.

　　If the 20ah lead-acid battery is compared with the 20ah lithium battery, the lithium battery has a lighter weight and a longer battery life, and the life of the lithium battery is relatively long, about twice the life of the lead-acid battery, but the cost of lithium battery will be higher. Lead acid, on the other hand, is relatively more economical, and there are many after-sales points of electric vehicles under the domestic battery brands such as Chaowei, which is convenient for maintaining batteries and replacing carbon brushes, and can meet the needs of users for long-term use.

　　At present, lithium battery electric wheelchairs are mainly used in portable electric wheelchairs, which are relatively inferior to lead-acid in battery life. The later replacement cost is also high. Here, you can refer to the approximate cruising range of the battery collected by Xiaobian. The battery life will be different due to different road conditions, different people’s weights and continuous exercise time.

　　The expansion screw is composed of a screw and an expansion pipe, the tail of the screw is conical, and the inner diameter of the cone is larger than that of the expansion pipe. When the nut is tightened, the screw moves outward, and the conical part moves through the axial movement of the thread, so that a great positive pressure is formed on the outer peripheral surface of the expansion pipe, and the angle of the cone is very small, so that friction self-locking is formed among the wall, the expansion pipe and the cone, and the fixing effect is achieved.As it happens, many people are killed Anchorage agent for mines And bring more benefits, make it flourish, and promote the industry greatly. https://www.chinatianlong.com/

　　The spring washer on the expansion screw is a standard part. Because its openings are staggered and elastic, it is called a spring washer. The function of the spring washer is to use the sharp corner of the staggered mouth to pierce the nut and the flat washer to prevent the nut from loosening.

　　The flat pad is also a standard part, and its function is to evenly distribute the pressure of the nut on the connected parts.

　　Expansion screw specifications:

　　The grades of expansion bolts are: 45, 50, 60, 70, 80,

　　The materials of expansion screws are mainly divided into austenite A1, A2 and A4.

　　Martensite and ferrite C1, C2, C4,

　　Its representation method is, for example, A2-70,

　　”-“indicates bolt material and strength grade before and after, and the following is a complete specification table of expansion bolts.

　　For 45 # steel, alloy steels with high mechanical properties, such as 15Cr, 20Cr, 40Cr, 15MnVB and 30CrMrSi, can be selected for important or special-purpose threaded joints.

　　Choose different expansion screws according to the actual situation of the wall. Generally, there are the following 6〜60, 6〜80, 6〜120 and 6〜150.

　　6〜60: the total length is 60 mm, the sleeve is 45 mm long, the diameter is 8 mm, the wall thickness is 0.7 mm, and the surface is coated with colored zinc; The screw is 60 mm long, 6 mm in diameter, 35 mm in threaded part and 8mm in bottom hammer, and the surface is coated with colored zinc; The nut is octagonal with an outer diameter of 10 mm and a thickness of 5 mm, and the surface is plated with white zinc; The outer diameter of the gasket is 13 mm, the thickness is 1mm, the inner diameter is 6 mm, and the surface is plated with white zinc; The elastic sheet is a ring with an out diameter of 9 mm, an inner diameter of 6 mm and a thickness of 1.6 mm.

　　6〜80: the total length is 80 mm, the sleeve is 65 mm long, the diameter is 8mm, the wall thickness is 0.7 mm, and the surface is coated with colored zinc; Screw length, nut, gasket and elastic sheet are the same as above.

　　6〜120: the total length is 120mm, the sleeve is 105mm long, the diameter is 8mm, the wall thickness is 0.7 mm, and the surface is coated with colored zinc; Screw length, nut, gasket and elastic sheet are the same as above.

　　6〜150: the total length is 150mm, the sleeve is 135mm long, the diameter is 8mm, the wall thickness is 0.7 mm, and the surface is coated with colored zinc; Screw length, nut, gasket and elastic sheet are the same as above.