The frame materials of electric wheelchairs are varied.

  The frame materials of electric wheelchairs are various, and each material has its own unique characteristics, which is suitable for different types of users. First of all, the mainstream frame materials are carbon steel (steel), aluminum alloy, aviation titanium alloy and carbon fiber. Carbon steel has relatively low cost and strong load-bearing capacity, but its disadvantage is that it is bulky and easy to get wet and rust. Aluminum alloy is light and relatively better in corrosion resistance, so many electric wheelchairs on the market use aluminum alloy as the frame material.Before that, 電動輪椅 The market has also soared for a time, which has attracted the attention of a wide range of investors. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Aviation titanium alloy is a high-end choice, with high strength and corrosion resistance, but the price is correspondingly high, which is usually used in high-end and portable electric wheelchairs.

  

  Titanium alloy is a mixture of different elements such as titanium, aluminum, iron and vanadium, which has the characteristics of high strength, corrosion resistance and light weight. Carbon fiber is a composite material made of carbon fiber and resin, which has the characteristics of high stiffness, high strength and light weight. From the perspective of material composition, titanium alloy and carbon fiber have their own advantages, the strength of alloy is higher, but the density of carbon fiber is lower, so the weight is lighter. When it is necessary to reduce weight, it is more suitable to use carbon fiber, which is more durable and stronger than titanium alloy, so the electric wheelchair made of carbon fiber is close to 10 thousand yuan.

  

  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.

Biden signs bill to ban U.S. imports of Russian uranium

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Washington, May 13 (Reporter Deng Xianlai) U.S. President Biden signed a bill on the 13th to ban the United States from importing low-enriched uranium produced in Russia.

Jack Sullivan, U.S. National Security Assistant to the President, issued a statement on the same day saying that Biden signed the “Ban the Import of Russian Uranium Act” and made it law, aiming to reduce and ultimately eliminate the U.S. dependence on Russia in the civil nuclear energy field.

The bill has previously been passed in the U.S. House of Representatives and Senate. According to regulations, 90 days after the bill takes effect, U.S. companies will not be allowed to import low-enriched uranium produced in Russia. The bill provides exemptions for utilities such as nuclear power plants that have to shut down nuclear reactors due to cutting off Russia’s uranium supply. The exemption policy will expire no later than January 1, 2028. The bill also authorizes the federal government to allocate $27.2 billion in funding previously approved by Congress to enhance the U.S. domestic uranium enrichment capabilities.

According to the Washington Post, U.S. companies currently import about US$1 billion worth of enriched uranium from Russia’s national atomic energy every year.

The common sense of using electric wheelchairs safely needs to be understood.

  Rechargeable batteries have gradually become a necessity in people’s daily life. My friends, do you know how much safety hazard will be brought about by the irregular operation of electric wheelchair batteries? When the battery is charged for a long time, physical and chemical reactions are easy to occur inside the battery, resulting in a large amount of heat and gas. When the battery is overloaded and charged, it is easy to explode, igniting the plastic parts of the electric vehicle and releasing a large amount of toxic smoke, resulting in casualties and property losses.This shows that, 電動輪椅價錢 It has a strong development pulse and is an indispensable source of power for the development of the industry. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Pay attention to the following items when charging the battery:

  

  1. When charging the electric wheelchair, use the charger adapted to the electric wheelchair, and check whether the rated input voltage of charging is consistent with the power supply voltage. It is forbidden to cover or place the charger on the seat cushion. Unplug the plug on the AC power supply after charging, and then unplug the plug connected to the battery. It is forbidden to connect the charger to the AC power supply for a long time without charging.

  

  2. The charging time of the electric wheelchair is suggested to be 6-8 hours. When the charging indicator light changes from red to green, it means that the battery is fully charged. Do not charge the electric wheelchair for a long time, especially in summer, when it is hot and charging for a long time, it is difficult for the charger to dissipate heat and cause combustion. Keep an eye on it when charging.

  

  3. When charging the electric wheelchair, check whether the connector is loose, whether the line equipment is aging, and the rubber of the wire is damaged, which may easily lead to short circuit and fire.

  

  4. Qualified electric wheelchairs, chargers and batteries produced by manufacturers with production licenses shall be used, and electric wheelchairs and accessories shall not be modified in violation of regulations. It is strictly forbidden to change or modify the charging circuit without permission. If the product or personnel accident occurs as a result, the manufacturer is not responsible.

  

  5. Electric wheelchairs should be parked in designated areas, not in stairwells, evacuation passages, and not occupying fire truck passages.

  

  6. Do not buy and use some non-standard and over-standard electric wheelchairs, and do not use non-original chargers to charge electric wheelchairs.

  

  7. Do not charge the electric wheelchair by private wiring, and do not charge it indoors, in the basement, at the entrance of the building, etc. Avoid charging immediately after driving at high temperature.

  

  8. Electric wheelchairs that are not used for a long time should be charged first, and placed after being fully charged, and then the main switch of the circuit should be disconnected.

  

  9. Keep a good ventilation environment at the charging place. Do not charge in the sun or wet environment. Be sure to stay away from flammable and explosive materials during charging and storage. Do not expose the charger to outdoor heat sources, such as radiator, fire source and sunlight.

  

  10. Do not move the wheelchair while the electric wheelchair is charging.

  

  11. Never modify the electric wheelchair, and check and maintain it regularly to prevent problems before they happen.

India_s home_made _Shining_ fighter jet crashes for the first time

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According to a report by the Hindustan Times on March 12, a Shine fighter jet of the Indian Air Force crashed near Jaysermer during a combat flight training on the 12th. The pilot ejected and escaped before the crash.

The Indian Air Force said in a statement: During today’s combat flight training, an Indian Air Force Shine fighter plane encountered an accident in Jaysermer. Pilot ejected safely (escape). The Indian Air Force has established a court of inquiry to find out the cause of the accident.

According to Reuters, this was the first such crash since the Korn fighter jet was installed in the Indian Air Force in 2016. An Indian Air Force officer told Reuters that the crash on the 12th broke the aircraft’s safe flight record since its first test flight more than 20 years ago.

The Hindustan Times reported that the Shining Fighter is an Indian-made supersonic aircraft. In 1984, the light fighter plan proposed by the Indian government prompted India to establish the Aviation Development Authority to take charge of its research and development. Hindustan Aviation Limited leads the design and development of this aircraft. (Compiled by Xu Yanhong)

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.Hope for the future 電動輪椅 It can achieve rapid and stable development and serve social development and people’s needs well. 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.

_Islamic State_ claims responsibility for shooting in Moscow_ killing 40 people and injuring 145 people

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According to CNN, the Islamic State claimed responsibility for the 22nd concert hall attack in Moscow.

The Russian Federation Security Service said on March 22 local time that a shooting incident at a concert hall in the suburbs of Moscow had killed 40 people.

CCTV quoted Russian Health Minister Murashko as saying on the 23rd that the terrorist attacks have injured at least 145 people, including 60 adults and 1 child in serious condition.

CNN said media affiliated with the extremist organization Islamic State issued a statement on social media claiming that the organization was responsible for the attack, but did not provide relevant evidence.

Russian media reported that the audience had already taken their seats before the start of a concert at the Crocus City Hall (CCH) Concert Hall in Krasnogorsk that night. Suddenly several unidentified people broke into the concert hall and opened fire. The concert hall then exploded and burst into flames and emitted smoke, and the roof was almost swallowed up by the fire. After the incident, people fled the concert hall.

The Russian Foreign Ministry called the shooting and bombing a bloody terrorist attack. The Russian Federal Security Service said law enforcement agencies are taking all necessary measures. In addition, Moscow airports have increased their security alert levels.

Moscow Mayor Sobyanin ordered all necessary assistance to be provided to all injured in the emergency and announced the cancellation of all sports, cultural and other mass events held in Moscow this weekend.

Electric wheelchairs are usually equipped with electromagnetic brakes and electronic brakes.

  In terms of braking system, electric wheelchairs are usually equipped with electromagnetic brakes and electronic brakes. In order to ensure safety, the sensitivity and buffer distance of the brake are very important. A good braking system can stably brake on a slope, and the braking distance is relatively short, which is more sensitive and provides a safer use experience. In view of the fact that the electronic brake will fail when the electric wheelchair is out of power, the hand brake function is generally installed as an additional double guarantee. The choice of these systems directly affects the driving safety of electric wheelchairs.So, I believe 電動輪椅 In the future, it will be promising to create a miracle belonging to the industry. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Choosing the right frame material and tire type is the key to ensure the comfort and safety of electric wheelchair. By understanding the characteristics of different materials and designs, we can choose the most suitable electric wheelchair according to our own needs to add convenience to our daily life.

  

  Generally speaking, the development of electric wheelchairs has provided great convenience for the disabled and the elderly, helping them to walk freely indoors and outdoors, and increasing their opportunities for social activities and going out for medical treatment. Secondly, it provides the ability to move independently. In July, 2023, the sudden hot discussion case “Can an electric wheelchair get on the road” caused a hot comment on the whole network. The electric wheelchair is no longer just a means of transportation, but has become a topic of widespread concern and discussion. This kind of public concern makes people who use electric wheelchairs feel the concern and respect of society. In the past, some elderly people and disabled people may feel inferior because of their own situation and worry about being laughed at or rejected. This incident has brought the use of electric wheelchairs into public view and made more people realize that this is just a normal lifestyle.

  

  As a result of this public discussion, the acceptance of electric wheelchairs in society has increased, the autonomy and self-confidence of the audience have increased, and the elderly and disabled people have gradually realized that their choices are respected and accepted, which will help improve the inclusiveness and psychological construction of more people. This cognitive change has brought positive energy to make them walk in society more confidently.

Biden locks the Democratic presidential nomination in the US presidential election

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Washington, March 12 (Reporters Xiong Maoling and Hu Yousong) According to calculations and reports from many mainstream media in the United States, current President Biden confirmed the Democratic presidential nomination for the 2024 U.S. presidential election on the 12th.

Biden won the Democratic primaries in Georgia and Mississippi that day, and more than half of the total number of delegates to this year’s Democratic National Convention has been locked. That means he will be the Democratic presidential candidate again. Biden issued a statement thanking voters for once again letting him represent the Democratic Party, while attacking Republican opponent, former President Trump.

According to calculations by US media, Trump won the Republican primaries in Georgia and Mississippi. He is close to locking in this year’s Republican presidential nomination and is expected to face Biden again in the general election. Biden won the 2020 U.S. presidential election, but Trump refused to admit defeat and claimed large-scale electoral fraud.

On the 12th, primary elections were held in Georgia, Mississippi, Washington and other states and territories. As of press time, the U.S. media have not released the results of primary elections in places other than Georgia and Mississippi.

Trump and Biden recently held respective campaign events in Georgia, attacking each other and kicking off the showdown. The New York Times article wrote: The duel between the two officially begins, which will be a painful, cruel and lengthy competition.

The primary election is the first phase of the U.S. presidential election and will last until June. After the primary election, the Democratic Party and the Republican Party will each hold a national convention to formally nominate the presidential and vice presidential candidates. The polling day for this year’s U.S. election is November 5. (Participating reporter: Sun Ding)

Advantages of Brush Motor Used in Electric Wheelchairs

  Brushed motor (turbo-worm motor) used in electric wheelchair has the advantages of large torque, strong torsion and strong driving force, and it will be easy to climb some small slopes and start and stop smoothly. Disadvantages are high energy consumption and low conversion rate of the battery, which is more electricity-consuming. Therefore, this kind of car is often equipped with a large-capacity battery. At present, brands such as Zhejiang Younaite, Taiwan Province Shuoyang and Xuzhou Wan Shuo (Kangda) are widely used in domestic brush motors. Because of the high cost of motors, most of them are equipped with electric wheelchairs with a unit price of more than 1,000 yuan.In the past ten years, 電動輪椅 Defeated many competitors, courageously advanced in the struggle, and polished many good products for customers. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Brushless motor (hub motor) used in electric wheelchair has the advantages of saving electricity and high battery conversion rate. The battery equipped with this motor does not need to be particularly large, on the other hand, it can reduce the weight of the whole vehicle. Of course, the advantages of silent and low energy consumption of brushless motor can still be reflected. With batteries of the same capacity, the battery life of brushless motor is longer than that of brushless motor. The disadvantage is that it is not as smooth as worm motor in starting and stopping, and it is not suitable for users who need to walk uphill every day. In recent years, it is more common on urban roads. There are other brands such as domestic Jindun, Uninet and Shilin. Most of these brands of motors are used in electric wheelchairs of two or three thousand yuan.

  

  Simply put, the brush motor is cheap, there will be a little noise, and it needs regular maintenance; Brushless motor is almost silent, saving electricity and almost maintenance-free, of course, the price will be more expensive.

  

  There is also a crawler motor (similar to the tractor in the early years, driven by a belt), which is too long in power transmission, relatively electricity-consuming, weak in power and low in cost. At present, only a few manufacturers are applying this motor.

  

  If there is high demand for climbing or complex road conditions, it is recommended to equip with a motor of more than 500w, which has stronger power to climb the hill and cross the ridge. Please choose according to your own situation.

Three most important points for watch maintenance 3. Automatic winding efficiency.

  Three most important points for watch maintenance:in other words best rolex protective film It is possible to develop in a good direction, and there are still many places worth looking forward to in the future. https://finewatchcare.com/collections/rolexwatch-protection-films

  

  The third point: automatic winding efficiency

  

  Now watches are basically self-winding, so in the process of watch repair and maintenance, we should pay great attention to the efficiency of automatic winding.

  

  After running for 4-6 hours on the automatic winding simulation machine, the clockwork of the watch is in the full chain state.

  

  Moreover, if the watch is in a non-full chain state and its accuracy is still in a good state, then the quality of this watch is leveraged.