Rear wheel center shaft adjusting device

Abstract

The utility model relates to the field of rehabilitation medicine, and discloses a rear wheel center shaft adjusting device which comprises two frame connecting hoop pieces, a center shaft body, two center shaft connecting pieces and two clamping plates, height adjusting rods are fixedly arranged at the lower ends of the two frame connecting hoop pieces, and clamping blocks are movably arranged on the two sides of the center shaft body. According to the height-adjustable wheelchair, the height adjusting rod needs to be inserted into the through groove in one side of the middle shaft connecting piece firstly, the height of the wheelchair can be conveniently adjusted according to the requirements of users by adjusting the height adjusting rod, the using habits and the comfort requirements of different users are met, the hexagon bolts are screwed into the threaded holes after adjustment is completed, and the height-adjustable wheelchair is convenient to adjust. When the wheelchair frame is used, the frame is mounted between the frame connecting hoop piece and the clamping plate, then the hexagon bolt is screwed into the threaded hole in one side of the frame connecting hoop piece, the wheelchair frame is effectively fixed through the frame connecting hoop piece and the clamping plate, the stability of the whole structure is enhanced, and safer use experience is provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of rehabilitation medicine especially relates to a rear wheel middle shaft adjusting device. BACKGROUND

[0002] A wheelchair is a kind of auxiliary action tool specially designed for people with difficulty in moving, aiming at helping those who cannot walk independently due to various reasons (such as disability, old age, illness or injury, etc.) to move conveniently. It is not only a kind of transportation tool, but also an important equipment to improve the quality of life and enhance independence. The design of wheelchair considers the comfort and support of users. Modern wheelchairs are usually equipped with comfortable seats, adjustable backrests and armrests to ensure that users can maintain a comfortable sitting posture during long-term use. In addition, the height and depth of the seat of the wheelchair can also be adjusted according to the needs of users to adapt to people of different sizes and body types. The wheel design of the wheelchair is also very important. The front wheels are usually smaller, which is convenient for steering, while the rear wheels are larger, which provides better stability and pushing force. Many modern wheelchairs are also equipped with non-slip tires to enhance the grip on various surfaces and ensure the safety of users during travel.

[0003] However, the conventional wheelchair rear wheels are generally fixed height, and the fixed height wheelchair cannot adapt to the height, leg length and body condition of different users. Everyone's body size and needs are different, especially for those with special physical conditions or disabilities, fixed wheelchair rear wheels will cause discomfort. Sitting at an inappropriate height for a long time can cause back pain, leg discomfort and other health problems, affecting the overall comfort and quality of life of users. Moreover, for some users whose physical condition may change (such as the elderly, rehabilitation patients, etc.), fixed height wheelchairs cannot adapt to their changing needs. Over time, the user's physical condition may change, such as weight gain, muscle weakness, etc., and a fixed height wheelchair cannot provide sufficient support, causing users to feel uncomfortable or lack of security during use.

[0004] Therefore, the skilled person in the art provides a rear wheel middle shaft adjusting device to solve the problems raised in the background art. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art and provides a rear wheel middle shaft adjusting device. The new device is easy to install on the wheelchair rear wheel and can quickly adjust the height of the wheelchair rear wheel after installation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A rear wheel axle adjusting device, including two frame connecting hoop parts, an axle body, two axle connecting parts, two clamps, the lower end of two frame connecting hoop parts is fixedly provided with height adjusting rod, the both sides of axle body are movably provided with clamping block.

[0008] Further, two clamps are movably arranged on the opposite sides of the two frame connecting hoop parts, and the axle body is movably arranged between the two axle connecting parts.

[0009] Further, two height adjusting rods are movably arranged at the inner ends of the two axle connecting parts, and two clamping blocks are movably arranged on the two sides of the two axle connecting parts.

[0010] Further, two axle connecting parts are movably arranged at the lower ends of the two frame connecting hoop parts.

[0011] The utility model has the advantages of:

[0012] The utility model provides a rear wheel middle axle adjusting device, the new type is installed at the wheelchair rear wheel, needs first with height adjusting stick is inserted into the through groove of middle axle connecting piece one side, through the position of height adjusting stick in the groove of middle axle connecting piece, the user can conveniently adjust the height of wheelchair, this design makes the user of different height and body shape can adjust according to the demand of self, realizes the personalized use experience, whether is the old, disabled person or other action inconvenient person, can find the most comfortable sitting posture under the help of this device, reduces the body burden, improves the comfort degree when sitting, after adjusting, the hexagonal bolt is screwed into the threaded hole, then the frame is installed between the frame connecting hoop piece and the clamping plate, the hexagonal bolt is screwed into the threaded hole of frame connecting hoop piece one side, frame connecting hoop piece and clamping plate effectively fix the wheelchair frame, this stable design can ensure that the wheelchair is not easy to sway in the use process, provides a safe moving environment, reduces the risk of falling down and other accidental injuries, provides strong guarantee for the safety of user, then the middle axle body is inserted into the hole between two middle axle connecting pieces, through the knob of card block, the card block will be clamped at the wheel of wheelchair, then the hexagonal bolt is screwed in, through the middle axle body is inserted into the hole between two middle axle connecting pieces, and uses the knob of card block and fixes, this process effectively reduces the risk of wheel loosening in the driving process, the reliable fixing mechanism ensures that the wheelchair wheel does not accidentally fall off in use, thereby providing a safer use experience, at the same time, the user is more reassured when going uphill or downhill or in different terrain, need not worry about the safety hidden danger of wheelchair due to wheel problem, the new type is screwed into the corresponding threaded hole through the hexagonal bolt, not only speeds up the assembly speed of wheelchair, also reduces the trouble caused by complex installation steps, and through the fixing mode of hexagonal bolt, makes it more convenient when needing to disassemble or maintain, in daily use, with the lapse of time, the wheelchair will face daily wear and tear, failure or maintenance demand, the user can quickly and easily maintain or replace parts, ensure that the wheelchair always keeps in good use state, better satisfy the demand of user. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the shaft measurement schematic view of the utility model;

[0014] Figure 2 It is the section view schematic view of middle axle body and card block in the utility model;

[0015] Figure 3 It is the shaft measurement schematic view of middle axle connecting piece in the utility model;

[0016] Figure 4 It is the front shaft measurement schematic view of frame connecting hoop piece, height adjusting stick and clamping plate in the utility model;

[0017] Figure 5The rear axle measurement schematic view of the frame connecting hoop piece, the height adjusting rod and the clamping plate.

[0018] Figure 6 The axle measurement schematic view of the middle shaft body and the clamping block.

[0019] Legend:

[0020] 1, frame connecting hoop piece; 2, middle shaft body; 3, middle shaft connecting piece; 4, height adjusting rod; 5, clamping plate; 6, clamping block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0022] Referring to Figures 1-6 , the present application provides an embodiment:

[0023] A rear wheel middle shaft adjusting device, including two frame connecting hoop pieces 1, a middle shaft body 2, two middle shaft connecting pieces 3, two clamping plates 5, the lower end of the two frame connecting hoop pieces 1 is fixedly provided with a height adjusting rod 4, the two sides of the middle shaft body 2 are movably provided with clamping blocks 6, the two clamping plates 5 are movably arranged on the opposite side of the two frame connecting hoop pieces 1, the middle shaft body 2 is movably arranged between the two middle shaft connecting pieces 3, the two height adjusting rods 4 are movably arranged on the inner end of the side of the two middle shaft connecting pieces 3, the two clamping blocks 6 are movably arranged on the two sides of the two middle shaft connecting pieces 3, and the two middle shaft connecting pieces 3 are movably arranged on the lower end of the two frame connecting hoop pieces 1.

[0024] Specifically, the new type is installed at the rear wheels of the wheelchair, and the height adjusting rod 4 needs to be inserted into the through slot on one side of the middle shaft connecting piece 3. By adjusting the position of the height adjusting rod 4 in the slot of the middle shaft connecting piece 3, the user can conveniently adjust the height of the wheelchair. This design allows users of different heights and body types to adjust according to their own needs, achieving personalized use experience. Whether it is for the elderly, disabled people or other people with limited mobility, they can find the most comfortable sitting position with the help of this device, reduce the burden on the body, and improve the comfort of sitting. After adjusting, the hexagonal bolt is screwed into the threaded hole, and then the frame is installed between the frame connecting clamp piece 1 and the clamping plate 5. Then the hexagonal bolt is screwed into the threaded hole on one side of the frame connecting clamp piece 1. The frame connecting clamp piece 1 and the clamping plate 5 effectively fix the wheelchair frame. This stable design can ensure that the wheelchair does not shake during use, providing a safe moving environment and reducing the risk of falling and other accidents, providing strong protection for the safety of users. Then insert the middle shaft body 2 into the hole between the two middle shaft connecting pieces 3. By turning the clamping block 6, the clamping block 6 will be clamped at the wheel of the wheelchair. Then the hexagonal bolt is screwed in. By inserting the middle shaft body 2 into the hole between the two middle shaft connecting pieces 3 and using the turning clamping block 6 to fix it, this process effectively reduces the risk of wheel loosening during driving. The reliable fixing mechanism ensures that the wheelchair wheels will not accidentally fall off during use, thereby providing a safer use experience. At the same time, users can feel more secure when going uphill or on different terrains, without worrying about safety hazards caused by wheelchair wheel problems. The new type is screwed into the corresponding threaded hole, not only speeding up the assembly of the wheelchair, but also reducing the trouble caused by complex installation steps. Moreover, through the fixing method of the hexagonal bolt, it becomes more convenient to disassemble or maintain when needed. In daily use, as time goes by, the wheelchair will face daily wear and tear, failure or maintenance needs. Users can quickly and easily maintain or replace parts to ensure that the wheelchair always remains in good working condition and better meets the needs of users. Through the simplified adjustment and fixing process, the new device allows users to independently adjust the height and safety of the wheelchair without the assistance of others. This independence enhances the user's self-confidence, encourages them to be more active in a wider range of environments, participate in social interactions and daily life, and ultimately improve their quality of life.

[0025] Working principle: the new type is installed at the rear wheel of the wheelchair, the height adjusting rod 4 is inserted into the through slot on one side of the middle shaft connecting piece 3, the height of the wheelchair can be adjusted by adjusting the position of the height adjusting rod 4, after the adjustment is completed, the hexagonal bolt is screwed into the threaded hole, then the frame is installed between the frame connecting clamp piece 1 and the clamping plate 5, then the hexagonal nut is screwed into the threaded hole on one side of the frame connecting clamp piece 1, then the middle shaft body 2 is inserted into the hole between the two middle shaft connecting pieces 3, the clamping block 6 is clamped at the wheel of the wheelchair by turning the clamping block 6, then the bolt is screwed in, the wheelchair wheel and the new type can be fixed.

[0026] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A rear wheel axle adjusting device, comprising two frame connecting clamp members (1), an axle body (2), two axle connecting members (3), and two clamping plates (5), characterized in that: The lower end of each of the two frame connecting clamping hoop pieces (1) is fixedly provided with a height adjusting rod (4), and the two sides of the middle shaft body (2) are movably provided with clamping blocks (6).

2. The rear wheel spindle adjustment device of claim 1, wherein: The two clamping plates (5) are movably arranged on the opposite sides of the two frame connecting clamping hoop pieces (1), and the middle shaft body (2) is movably arranged between the two middle shaft connecting pieces (3).

3. The rear wheel spindle adjustment device of claim 1, wherein: The two height adjusting rods (4) are movably arranged at the inner ends of one side of the two middle shaft connecting pieces (3), and the two clamping blocks (6) are movably arranged on the two sides of the two middle shaft connecting pieces (3).

4. The rear wheel spindle adjustment device of claim 1, wherein: The two middle shaft connecting pieces (3) are movably arranged at the lower ends of the two frame connecting clamping hoop pieces (1).

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