Today, the electric massage chair on the market has become a popular health care product. When you are tired, you can use an electric massage chair to massage various parts of your body. In addition, manufacturers strongly promote the use of these massage chairs. Many filial young people begin to prepare electric massage chairs for the elderly. However, older people do not need to pay attention to many places when using electric massage chairs. How to choose an old massage chair? ? Ya Zhen furniture tells everyone to pay attention to the elderly to buy a massage chair ?
Buying massage chairs for the elderly
The principle of the massage chair for the elderly is to massage using mechanical rolling force and mechanical force. Many massage chairs on the market today are dominated by full-body massages, which generally have a great effect on the spine. The elderly due to reduced intervertebral disc water, resulting in narrowing of the intervertebral space, so that the ligaments around the spine in a relaxed state, often in the improper use of massagers will lead to changes in biomechanics of the spine, such as the occurrence of facet joint disorders, lumbar disc herniation Conditions can cause physical discomfort. The elderly should be cautious when choosing massage chairs. They should choose massagers based on local muscles or acupuncture points. The time should not be too long, generally not more than half an hour.
Osteoporosis is due to calcium deficiency and other reasons, easily lead to brittle bone, massage force is large, especially easy to cause fractures, so osteoporosis should not use electric massage chairs. If you immediately perform self-massage or use a massager after an acute injury, it will increase inflammation and edema, which will increase the pain.
Elderly massage chair how to choose
1. Simple and practical
Old people use instruments to buy massage chairs for the elderly. Functions do not need to be too much. As for TV, MP3, jade massage and other functions, they are selected according to their own needs. Some functions may not be needed or even cumbersome for the elderly.
2. Massage is not too heavy
Some elderly people may be very tolerant and like massage chairs with high massage intensity. However, massage chairs with too much massage force are actually very unsuitable for use by the elderly. The elderly have low bone density and flexibility of bones and soft tissues. Relatively poor, if you choose a massage chair that is too strong, it is easy to cause discomfort and even hurt the body of the elderly.
3. Select with body detection
The low-end massage chair does not have the function of body shape detection, and can only be run in accordance with the default procedure. It completely disregards the user's height, height, weight, and thinness. Therefore, it often causes the user to feel that he has been pressed very rough and is missing the high-grade massage. The comfort of the chair. Even using such a massage chair for a long time can cause physical damage. In particular, the elderly do not choose such a low-grade massage chair without a body type detection function, and try to select a body shape detection function.
Elderly massage chairs are introduced here. For the elderly to buy massage chairs must be thoughtful, can not blindly show filial piety oh, it is best for the elderly to feel their own first, feel comfortable and then buy better. If you want to learn more about furniture , you can pay attention to GO Home Information Channel.
Rotary Rings are a type of rotating seal widely used in various rotating equipment, such as rotary joints, rotary couplings, rotary connectors, etc. Its main function is to prevent liquid or gas leakage and maintain the normal operation of the equipment. In different applications, the material, structure, sealing method, size, etc. of Rotary Rings vary to adapt to different working conditions.
The materials of Rotary Rings are mainly divided into two categories: metallic and non-metallic.
Metal materials mainly include stainless steel, steel, copper, aluminum, etc., which have characteristics of high strength, corrosion resistance, wear resistance, and are suitable for rotary seals in harsh environments such as high temperature, high pressure, and high-speed.
Non metallic materials mainly include ceramics, silicon carbide, graphite, etc., which have characteristics such as high hardness, high wear resistance, and low friction coefficient. They are suitable for rotary seals under conditions such as low temperature, low pressure, and high speed.
The structure of Rotary Rings is mainly divided into three types: unidirectional rotation, bidirectional rotation, and rotational stationary.
1. Unidirectional rotating structure
The Rotary Rings with a unidirectional rotation structure can only rotate in one direction and are suitable for devices with only unidirectional rotation.
The Rotary Rings with a bidirectional rotation structure can rotate in two directions, suitable for devices that require bidirectional rotation.
The Rotary Rings with a rotating stationary structure are composed of a rotating ring and a stationary ring. The rotating ring contacts the stationary ring during rotation to achieve sealing, suitable for equipment that requires a rotating stationary seal.
The sealing methods of Rotary Rings are mainly divided into mechanical sealing and liquid sealing.
Mechanical sealing is achieved through the contact surface between the rotating ring and the stationary ring, which has the characteristics of high reliability, long service life, and simple maintenance. It is suitable for rotary sealing in harsh environments such as high speed, high temperature, and high pressure.
Liquid sealing is achieved by injecting liquid between the rotating ring and the stationary ring, which has the characteristics of good sealing performance, low friction coefficient, and preventing dry friction. It is suitable for rotary sealing under low speed, low temperature, low pressure, and other conditions.
The size of Rotary Rings is mainly determined by the equipment requirements, including inner diameter, outer diameter, thickness, shaft diameter, etc.
Rotary Seals,Rotary Lip Seal,Rotating Shaft Seal,V Seals
DG Zhongxingshun Sealing Products Factory , https://www.zxs-seal.com