Brake mechanism and electric wheelchair thereof

Abstract

The utility model discloses a brake mechanism and electric wheelchair relates to brake technical field, including brake main part and rotating plate, the outer wall of rotating plate is provided with the support structure, the support structure includes first support rod and second support rod, the end face of first support rod facing the rotating plate is provided with the connecting groove with the rotating plate interpenetrating, and the connecting groove is connected with the second support rod. The second supporting rod is movably arranged on the end face, away from the rotating plate, of the first supporting rod, a stretching assembly is arranged between the second supporting rod and the first supporting rod, and a positioning assembly for limiting the distance between the first supporting rod and the second supporting rod is arranged in the stretching assembly. By means of the arrangement mode that the supporting structure and the fixing structure are matched, the operation length of the rotating plate can be flexibly adjusted according to different requirements of users, meanwhile, due to the arrangement of the cylindrical supporting rod body, the uniformity of the rotating plate and the use comfort are improved, the balance effect of wheelchair braking is improved, and the service life of the wheelchair is prolonged. And the flexibility and the effectiveness of operating the rotating handle are further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, in particular to a brake mechanism and an electric wheelchair thereof. Background Art

[0002] An electric wheelchair is an intelligent wheelchair that is based on a traditional manual wheelchair and has a power drive device added to it. It can intelligently control movement. When an electric wheelchair needs to stop, it usually relies on the brakes installed on the wheelchair to achieve parking brakes.

[0003] The braking of the existing brake is usually achieved by controlling the control handle. When the user needs to park the vehicle, the handle can be pulled to drive the brake to brake the wheelchair. However, the length of the existing handle is limited, and the length cannot be flexibly adjusted according to the different operating ranges of the user's arm. As a result, some users do not pull the handle in time, resulting in inaccurate braking time and further deviation from the parking position. Therefore, in order to solve the above problems, a braking mechanism and an electric wheelchair thereof are proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a braking mechanism and an electric wheelchair thereof to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a brake mechanism, comprising a brake body and a rotating plate, wherein the rotating plate is movably arranged at the top of the brake body, and the outer wall of the rotating plate is provided with a supporting structure, wherein the supporting structure comprises:

[0006] A first support rod, wherein the end surface of the first support rod facing the rotating plate is provided with a connecting groove interlaced with the rotating plate;

[0007] The second support rod is movably arranged on the end surface of the first support rod away from the rotating plate, a stretching component is arranged between the second support rod and the first support rod, and a positioning component for limiting the distance between the first support rod and the second support rod is arranged inside the stretching component.

[0008] Preferably, the stretching assembly comprises an expansion ring, which is arranged between the first support rod and the second support rod, and the end surface of the second support rod facing the first support rod is a hollow structure.

[0009] Preferably, the positioning component comprises:

[0010] An adjusting column, wherein the adjusting column is fixedly disposed in the inner cavity of the second supporting rod, and the inner cavity of the adjusting column is a hollow structure;

[0011] The adjusting rod is fixedly arranged on the end surface of the first supporting rod facing the second supporting rod, and the adjusting rod is movably connected with the inner cavity of the adjusting column.

[0012] Preferably, a fixing structure is provided between the rotating plate and the first supporting rod, and the fixing structure comprises:

[0013] A fixing groove, the fixing groove being formed on the outer wall of the rotating plate and the first supporting rod;

[0014] A fixing rod is inserted into the inner cavity of the fixing groove and is used to limit the position of the first supporting rod on the rotating plate.

[0015] Preferably, protective covers are fixedly provided on the outer walls of the first support rod and the second support rod, and the protective covers are made of any one of elastic rubber or elastic silicone.

[0016] Preferably, the cross section of the fixing rod is concave-shaped, and the bottom end of the fixing rod passes through the bottom end of the rotating plate and extends downward.

[0017] The utility model also provides an electric wheelchair, comprising the above-mentioned braking mechanism.

[0018] Technical effects and advantages of the utility model:

[0019] The utility model adopts the arrangement mode of cooperating the supporting structure and the fixing structure, so that the operating length of the turning plate can be flexibly adjusted according to different needs of users. At the same time, the arrangement of the cylindrical supporting rod body improves the uniformity of the turning plate in the hand and the comfort of use, improves the balancing effect of wheelchair braking, and further enhances the flexibility and effectiveness of operating the turning handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the expanded ring of the utility model.

[0022] Figure 3 It is a schematic diagram of the main three-dimensional structure of the adjusting rod and the adjusting column of the utility model.

[0023] In the figure: 1. brake body; 2. rotating plate; 3. supporting structure; 301. first supporting rod; 302. second supporting rod; 303. expanding ring; 304. adjusting column; 305. adjusting rod; 306. connecting groove; 307. protective cover; 4. fixing structure; 401. fixing groove; 402. fixing rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1-3 A braking mechanism shown in the figure includes a brake body 1 and a rotating plate 2, the rotating plate 2 is movably arranged at the top of the brake body 1, the outer wall of the rotating plate 2 is provided with a supporting structure 3, the supporting structure 3 includes a first support rod 301 and a second support rod 302, the end surface of the first support rod 301 facing the rotating plate 2 is provided with a connecting groove 306 interlaced with the rotating plate 2, the second support rod 302 is movably arranged at the end surface of the first support rod 301 away from the rotating plate 2, a stretching component is arranged between the second support rod 302 and the first support rod 301, a positioning component for limiting the distance between the first support rod 301 and the second support rod 302 is arranged inside the stretching component, the outer walls of the first support rod 301 and the second support rod 302 are fixedly provided with a protective cover 307, the protective cover 307 is any one of elastic rubber or elastic silicone, the first support rod 3 01 and the second support rod 302 are arranged at the end of the rotating plate 2, providing a comfortable gripping area for the rotation of the rotating plate 2, and at the same time, by adjusting the distance between the first support rod 301 and the second support rod 302, support can be provided for different use lengths of the rotating plate 2, and the first support rod 301 and the second support rod 302 are circular in cross-section, and the force is evenly applied during use, which can enhance the force strength of the rotating plate 2, extend the service life of the rotating plate 2, and reduce the probability of breakage of the rotating plate 2, and the outer walls of the first support rod 301 and the second support rod 302 are fixedly sleeved with a protective cover 307, which has good elasticity and good heat and cold resistance, provides a good feeling for the direct grip of the user's hand, and enhances the comfort and durability of the use of the first support rod 301 and the second support rod 302.

[0026] Furthermore, the stretching assembly includes an expansion ring 303, which is arranged between the first support rod 301 and the second support rod 302. The end face of the second support rod 302 facing the first support rod 301 is a hollow structure. The expansion ring 303 and the end face of the first support rod 301 facing the second support rod 302 are fixedly arranged. The expansion ring 303 and the inner cavity of the second support rod 302 are movably interlaced, and the outer wall of the expansion ring 303 is fixedly sleeved with a rubber sleeve. The expansion ring 303 is set to be exposed as the distance between the first support rod 301 and the second support rod 302 increases, thereby filling the gap between the first support rod 301 and the second support rod 302, so that the first support rod 301 and the second support rod 302 can be extended in use length while also ensuring the effectiveness of the use of the first support rod 301 and the second support rod 302.

[0027] Furthermore, the positioning assembly includes an adjustment column 304 and an adjustment rod 305. The adjustment column 304 is fixedly arranged in the inner cavity of the second support rod 302. The inner cavity of the adjustment column 304 is a hollow structure. The adjustment rod 305 is fixedly arranged on the end surface of the first support rod 301 facing the second support rod 302. The adjustment rod 305 is movably connected with the inner cavity of the adjustment column 304. The adjustment column 304 and the adjustment rod 305 are threadedly connected. By rotating the second support rod 302 clockwise, the adjustment column 304 can be driven to rotate along the outer wall of the adjustment rod 305 and move at the same time, thereby The second support rod 302 can be gradually moved away from the first support rod 301, thereby increasing the overall usable length of the first support rod 301 and the second support rod 302. When the adjusting column 304 rotates on the outer wall of the adjusting rod 305, the expansion ring 303 will also leak out from the inner cavity of the second support rod 302. The expansion ring 303 can cover the adjusting column 304 and the adjusting rod 305 without affecting the rotation of the second support rod 302, so that after the overall length of the first support rod 301 and the second support rod 302 is adjusted, they can be normally grasped by the user.

[0028] Furthermore, a fixing structure 4 is provided between the rotating plate 2 and the first support rod 301, and the fixing structure 4 includes a fixing groove 401 and a fixing rod 402. The fixing groove 401 is provided on the outer wall of the rotating plate 2 and the first support rod 301, and the fixing rod 402 is inserted in the inner cavity of the fixing groove 401. The fixing rod 402 is used to limit the position of the first support rod 301 on the rotating plate 2. The cross section of the fixing rod 402 is concave-shaped, and the bottom end of the fixing rod 402 passes through the bottom end of the rotating plate 2 and extends to the bottom. The connection between the fixing rod 402 and the fixing groove 401 is that the first support rod 301 is sleeved on the outer wall of the rotating plate 2. The first support rod 301 is connected to the outer wall of the rotating plate 2, and the distance between the fixing grooves 401 opened on the first support rod 301 and the rotating plate 2 is made close, and then the two ends of the fixing rod 402 are respectively inserted into the inner cavity of the fixing groove 401 from top to bottom, and the height of the end of the fixing rod 402 inserted into the first support rod 301 is higher than the height of the end of the fixing rod 402 inserted into the rotating plate 2, so that the two ends of the fixing rod 402 can be accurately squeezed and fixed with the inner cavity of the fixing groove 401 at different positions, thereby ensuring the stability of the position connection between the first support rod 301 and the rotating plate 2.

[0029] Finally, the utility model also provides an electric wheelchair, comprising the above-mentioned braking mechanism.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A brake mechanism, comprising a brake body (1) and a rotating plate (2), wherein the rotating plate (2) is movably arranged at the top end of the brake body (1), characterized in that: The outer wall of the rotating plate (2) is provided with a supporting structure (3), and the supporting structure (3) comprises: A first support rod (301), wherein the end surface of the first support rod (301) facing the rotating plate (2) is provided with a connection groove (306) interlaced with the rotating plate (2); A second support rod (302), the second support rod (302) is movably arranged on the end surface of the first support rod (301) away from the rotating plate (2), a stretching component is arranged between the second support rod (302) and the first support rod (301), and a positioning component for limiting the distance between the first support rod (301) and the second support rod (302) is arranged inside the stretching component.

2. A brake mechanism according to claim 1, characterized in that: The stretching assembly comprises an expansion ring (303), wherein the expansion ring (303) is arranged between the first support rod (301) and the second support rod (302), and the end surface of the second support rod (302) facing the first support rod (301) is a hollow structure.

3. A brake mechanism according to claim 1, characterized in that: The positioning component comprises: An adjusting column (304), wherein the adjusting column (304) is fixedly disposed in the inner cavity of the second support rod (302), and the inner cavity of the adjusting column (304) is a hollow structure; An adjusting rod (305) is fixedly arranged on the end surface of the first supporting rod (301) facing the second supporting rod (302), and the adjusting rod (305) is movably connected with the inner cavity of the adjusting column (304).

4. A brake mechanism according to claim 1, characterized in that: A fixing structure (4) is provided between the rotating plate (2) and the first supporting rod (301), and the fixing structure (4) comprises: A fixing groove (401), wherein the fixing groove (401) is formed on the outer wall of the rotating plate (2) and the first supporting rod (301); A fixing rod (402), the fixing rod (402) is inserted into the inner cavity of the fixing groove (401), and the fixing rod (402) is used to limit the position of the first support rod (301) on the rotating plate (2).

5. A brake mechanism according to claim 1, characterized in that: The outer walls of the first support rod (301) and the second support rod (302) are both fixedly provided with a protective cover (307), and the protective cover (307) is any one of elastic rubber or elastic silicone.

6. A brake mechanism according to claim 4, characterized in that: The cross section of the fixing rod (402) is concave-shaped, and the bottom end of the fixing rod (402) passes through the bottom end of the rotating plate (2) and extends downward.

7. An electric wheelchair, characterized in that: A braking mechanism comprising any one of claims 1 to 6.

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