Training handle quick-changing mechanism of medical rehabilitation training equipment

Abstract

The utility model discloses a training handle quick-changing mechanism of medical rehabilitation training equipment in the field of medical rehabilitation training systems, which comprises a handle main body, a fixed connection flange plate, a handle flange and a handle rotating shaft, and the handle rotating shaft is movably arranged in the supporting sleeve which is fixedly connected with the flange plate. Rehabilitation training handles in different forms can be quickly replaced through the quick-replacing structure as long as the rehabilitation training handles are consistent with the handle rotating shaft in matching relation, the adaptability of the training handles is greatly improved, the handle rotating shaft can quickly slide out or be prevented from sliding out only by rotating the handle flange, and compared with a traditional quick-replacing structure, the quick-replacing structure has the advantages that the structure is simple and convenient. The operation steps are simplified, the quick change efficiency is remarkably improved, the handle is convenient to replace in the rehabilitation training process, the structure is simple, the use of complex parts is reduced, the later maintenance cost is reduced, and the cost performance of the product is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical rehabilitation training systems, specifically a quick-change mechanism for the training handle of a medical rehabilitation training device. Background Technology

[0002] Many existing rehabilitation training systems are designed for upper limb training. Rehabilitation involves different training objectives and methods, and to ensure effectiveness, various structural designs of rehabilitation training handles are typically used. These handles usually require quick-change mechanisms to connect to the upper and lower limb rehabilitation training system, allowing for rapid replacement as needed during training. However, some existing quick-change mechanisms require tools for handle replacement, while others are complex, leading to high maintenance costs and operational inconvenience.

[0003] Therefore, those skilled in the art have provided a quick-change mechanism for the training handle of a medical rehabilitation training device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a quick-change mechanism for the training handle of a medical rehabilitation training device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick-change mechanism for a training handle of a medical rehabilitation training device includes a handle body, a fixed connecting flange, a handle flange, and a handle shaft. The fixed connecting flange has a support sleeve in the middle, and the handle shaft is movably disposed inside the support sleeve of the fixed connecting flange. The handle flange is disposed on the periphery of the support sleeve on the fixed connecting flange. Limiting holes are formed on opposite side walls of the support sleeve of the fixed connecting flange. A steel ball is movably disposed inside the limiting hole, and both ends of the limiting hole are integrally stamped with spherical openings for limiting the steel ball. An annular groove that mates with the steel ball is formed on the outer wall of the handle shaft.

[0007] As a further embodiment of this utility model: the cross-section of the annular groove on the handle shaft is an arc-shaped structure that mates with the steel ball.

[0008] As a further improvement of this utility model: a steel ball movement groove is provided symmetrically at the center hole of the handle flange to provide movement space for the steel ball, and a mounting threaded hole is provided on the flange surface of the handle flange, and a reset spring positioning component is screwed into the internal thread of the mounting threaded hole.

[0009] As a further embodiment of this utility model: the reset spring positioning component includes an external threaded post that is threaded to the mounting threaded hole, a hexagonal hole at the top of the external threaded post, an elastic support hole at the bottom of the external threaded post, a limiting and closing end integrally formed with the opening of the elastic support hole, an elastic retaining ball disposed inside the elastic support hole, and a spring pressing between the top of the elastic retaining ball and the elastic support hole. The fixed connection flange is provided with a limiting retaining hole above it that cooperates with the elastic retaining ball in the reset spring positioning component.

[0010] As a further improvement of this utility model: the outer wall of the support sleeve of the fixed connection flange is provided with a snap ring groove for installing snap rings, which can provide a limit for the installation of the handle flange and the fixed connection flange through snap rings.

[0011] As a further improvement of this utility model, the fixed connecting flange is connected to the handle body by screws.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention enables quick replacement of different types of rehabilitation training handles, as long as the fit with the handle shaft is consistent. This greatly improves the adaptability of the training handles. Moreover, simply rotating the handle flange allows the handle shaft to slide out quickly or prevent it from sliding out. Compared with traditional quick-change structures, the operation steps are simplified, significantly improving the efficiency of quick-change and facilitating handle replacement during rehabilitation training. The simple structure reduces the use of complex parts, lowers later maintenance costs, and improves the cost-effectiveness of the product. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the present invention;

[0016] Figure 3 This is a cross-sectional view of the present invention;

[0017] Figure 4 This is a cross-sectional view of the reset spring positioning component in this utility model;

[0018] Figure 5 This utility model Figure 3 A magnified view of a portion of point A in the middle.

[0019] In the diagram: 1. Handle body; 2. Fixed connection flange; 201. Support sleeve; 202. Limiting hole; 203. Movable hole; 204. Spherical end; 3. Handle flange; 301. Mounting threaded hole; 302. Steel ball movable groove; 4. Handle shaft; 401. Ring groove; 5. Return spring positioning component; 501. External threaded post; 502. Hexagonal hole; 503. Elastic support hole; 504. Spring; 505. Limiting end; 506. Elastic retaining ball; 6. Limiting circlip; 7. Steel ball. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5 In this embodiment of the present invention, a quick-change mechanism for a training handle of a medical rehabilitation training device includes a handle body 1, a fixed connecting flange 2, a handle flange 3, and a handle shaft 4. The fixed connecting flange 2 has a support sleeve 201 in the middle, and the handle shaft 4 is movably disposed inside the support sleeve 201 of the fixed connecting flange 2. The handle flange 3 is disposed on the periphery of the support sleeve 201 on the fixed connecting flange 2. Limiting holes 202 are provided on the opposite side walls of the support sleeve 201 of the fixed connecting flange 2. A steel ball 7 is movably disposed inside the limiting hole 202, and both ends of the limiting hole 202 are integrally stamped with spherical openings 204 for providing a limit for the steel ball 7. An annular groove 401 that mates with the steel ball 7 is provided on the outer wall of the handle shaft 4.

[0022] Among them, the cross section of the annular groove 401 on the handle shaft 4 is an arc-shaped structure that matches the steel ball 7.

[0023] The handle flange 3 has a steel ball movement groove 302 symmetrically located at the center hole of the handle flange 3 to provide movement space for the steel ball 7. The flange surface of the handle flange 3 has a mounting thread hole 301, and a reset spring positioning member 5 is screwed into the mounting thread hole 301.

[0024] By adopting the above technical solution, rotating the handle flange 3 allows the steel ball 7 to be pressed against the inner wall of the handle flange 3 by the action of the inner wall of the handle flange 3 and the steel ball movable groove 302. This causes the steel ball 7 to be stuck in the steel ball movable groove 302 of the handle shaft 4, ensuring axial limitation of the handle shaft 4 when it rotates relative to the handle flange 3. When rotating the handle flange 3 so that the steel ball movable groove 302 corresponds to the steel ball 7, it provides space for the steel ball 7 to move, allowing the steel ball 7 to separate from the handle shaft 4 under external force, releasing the limitation and enabling quick operation. The handle flange 3 is separated from the handle shaft 4, making operation convenient, quick, and extremely practical. This allows for the rapid replacement of different types of rehabilitation training handles, as long as they have the same compatibility with the handle shaft 4. This greatly improves the adaptability of the training handles. Moreover, simply rotating the handle flange 3 allows the handle shaft 4 to slide out quickly or prevent it from sliding out. Compared with traditional quick-change structures, the operation steps are simplified, significantly improving the efficiency of quick-change and facilitating handle replacement during rehabilitation training. The simple structure reduces the use of complex parts, lowers later maintenance costs, and improves the product's cost-effectiveness.

[0025] The reset spring positioning component 5 includes an external threaded post 501 that is threaded into the mounting threaded hole 301, a hexagonal hole 502 at the top of the external threaded post 501, an elastic support hole 503 at the bottom of the external threaded post 501, a limiting and closing end 505 integrally formed with the opening of the elastic support hole 503, an elastic retaining ball 506 disposed inside the elastic support hole 503, and a spring 504 pressed between the top of the elastic retaining ball 506 and the elastic support hole 503. A limiting retaining hole 202 that mates with the elastic retaining ball 506 in the reset spring positioning component 5 is provided above the fixed connecting flange 2.

[0026] The outer wall of the support sleeve 201 of the fixed connection flange 2 is provided with a retaining ring groove for installing the limiting retaining ring 6, which can provide a limit for the installation of the handle flange 3 and the fixed connection flange 2 through the retaining ring.

[0027] After adopting the above technical solution, when the steel ball 7 is pressed against the inner wall of the handle flange 3, the lower elastic ball 506 in the reset spring positioning component 5 is engaged in the elastic support hole 503, ensuring that the handle flange 3 and the fixed flange will not rotate relative to each other when the handle flange 3 is not subjected to a large external circumferential force, thus avoiding accidental release of the limit of the handle shaft 4. When replacing the handle, simply rotate it forcefully, and the elastic ball 506 will separate from the elastic support hole 503 under the elastic support force of the spring 504. The use of elastic limit solves the problem of inconvenient operation of mechanical limit.

[0028] In this embodiment, the fixed connection flange 2 is connected to the handle body 1 by screws.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-change mechanism for a training handle of a medical rehabilitation training device, comprising a handle body (1), a fixed connecting flange (2), a handle flange (3), and a handle shaft (4), characterized in that: The fixed connection flange (2) has a support sleeve (201) in the middle, and the handle shaft (4) is movably disposed inside the support sleeve (201) of the fixed connection flange (2). The handle flange (3) is disposed around the support sleeve (201) of the fixed connection flange (2). Limiting holes (202) are provided on the opposite side walls of the support sleeve (201) of the fixed connection flange (2). A steel ball (7) is movably disposed inside the limiting hole (202), and a spherical constriction (204) for limiting the steel ball (7) is integrally stamped at both ends of the limiting hole (202). An annular groove (401) that mates with the steel ball (7) is provided on the outer wall of the handle shaft (4).

2. The quick-change mechanism for the training handle of a medical rehabilitation training device according to claim 1, characterized in that: The annular groove (401) on the handle shaft (4) has an arc-shaped cross-section that matches the steel ball (7).

3. The quick-change mechanism for the training handle of a medical rehabilitation training device according to claim 1, characterized in that: The handle flange (3) has a steel ball movement groove (302) symmetrically located at the center hole for providing movement space for the steel ball (7). The flange surface of the handle flange (3) has a mounting thread hole (301), and a reset spring positioning component (5) is screwed into the mounting thread hole (301).

4. The quick-change mechanism for the training handle of a medical rehabilitation training device according to claim 3, characterized in that: The reset spring positioning component (5) includes an external threaded post (501) that is threaded to the mounting threaded hole (301), a hexagonal hole (502) opened at the top of the external threaded post (501), an elastic support hole (503) opened at the bottom of the external threaded post (501), a limiting and closing end (505) integrally formed with the opening of the elastic support hole (503), an elastic retaining ball (506) disposed inside the elastic support hole (503), and a spring (504) pressed between the top of the elastic retaining ball (506) and the elastic support hole (503). The fixed connection flange (2) is provided with a limiting retaining hole (202) that cooperates with the elastic retaining ball (506) in the reset spring positioning component (5).

5. The quick-change mechanism for the training handle of a medical rehabilitation training device according to claim 1, characterized in that: The outer wall of the support sleeve (201) of the fixed connection flange (2) is provided with a retaining groove for installing the limiting retaining ring (6).

6. The quick-change mechanism for the training handle of a medical rehabilitation training device according to claim 1, characterized in that: The fixed connection flange (2) is connected to the handle body (1) by screws.

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