Wheelchair armrest easy to disassemble

Abstract

The utility model discloses a wheelchair armrest easy to disassemble, which comprises a positioning seat fixed on a wheelchair backrest frame, a vertically downward insertion cavity is arranged on the positioning seat, an insertion strip inserted into the insertion cavity is arranged at the tail end of the armrest, and a positioning mechanism for fixing the insertion strip inserted into the insertion cavity is arranged on the positioning seat. The positioning seat is fixed on the wheelchair backrest frame, the positioning seat is provided with the vertically downward insertion cavity, the tail end of the armrest is provided with the insertion strip inserted into the insertion cavity, the insertion hole communicated with the insertion cavity is formed in the positioning seat, and the insertion strip is provided with the through hole corresponding to the insertion hole in position. And the bolt-free fixing mode is adopted for fixing, so that the fixing device has the characteristics of being convenient to mount and dismount and simple in structure.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair-related technology, specifically to an easily detachable wheelchair armrest. Background Technology

[0002] Currently, wheelchairs have armrest mounting brackets on both sides of the wheelchair frame. Generally, the armrest mounting brackets are directly welded to the wheelchair frame and cannot be moved or removed, causing inconvenience to wheelchair users.

[0003] Even if some manufacturers produce detachable armrest mounting brackets, they are still fixed to the wheelchair frame with screws and nuts, which is troublesome to install and remove, and requires the use of special tools to complete the process. Utility Model Content

[0004] To address the shortcomings of existing technologies that use screws and nuts to fix the armrest mounting base to the wheelchair frame, which is cumbersome to install and disassemble and requires specialized tools, this invention provides an easily detachable wheelchair armrest.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides an easily detachable wheelchair armrest, including a positioning seat fixed to the wheelchair backrest frame, and the positioning seat is provided with a vertically downward insertion cavity. The end of the armrest is provided with an insertion strip that is inserted into the insertion cavity, and the positioning seat is provided with a positioning mechanism for fixing the insertion strip inserted into the insertion cavity.

[0007] The positioning mechanism includes an insertion hole on the positioning seat and communicating with the insertion cavity, and the insertion strip is provided with a through hole corresponding to the position of the insertion hole. The positioning seat is provided with a limiting tube communicating with the insertion hole, and a pin is provided inside the limiting tube. The pin is provided with a movable block that moves along the limiting tube. The outer end of the limiting tube is provided with a cap, and the end of the pin passes through the cap. A compression spring is provided between the cap and the movable block. The pin is inserted between the insertion hole and the through hole.

[0008] As a preferred embodiment of this utility model, the end of the pin is provided with a downward-bent handle.

[0009] As a preferred embodiment of this utility model, the cross-section of the insertion cavity is a flat rectangular structure.

[0010] As a preferred embodiment of this utility model, the outer wheelchair of the insert is adapted to the inner contour of the insert cavity.

[0011] As a preferred embodiment of this utility model, the pin is provided in two parts.

[0012] As a preferred embodiment of this utility model, the upper surface of the handrail is provided with a sponge layer.

[0013] The beneficial effects of this utility model are:

[0014] 1. This type of easily detachable wheelchair armrest is fixed to a positioning seat on the wheelchair backrest frame. The positioning seat has a vertically downward insertion cavity. The end of the armrest has an insertion strip that is inserted into the insertion cavity. The positioning seat has an insertion hole that communicates with the insertion cavity. The insertion strip has a through hole corresponding to the position of the insertion hole. Then, a pin is inserted between the insertion hole and the through hole to achieve positioning. It is fixed in a boltless way, which is convenient for installation and disassembly and has a simple structure. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a structural schematic diagram of an easily detachable wheelchair armrest according to the present invention;

[0017] Figure 2 This is a schematic diagram of the insertion hole for an easily detachable wheelchair armrest according to this utility model;

[0018] Figure 3 This is a schematic diagram of the cavity structure of an easily detachable wheelchair armrest according to this utility model.

[0019] In the diagram: 1. Positioning seat; 2. Insertion cavity; 3. Handrail; 4. Insertion strip; 5. Insertion hole; 6. Through hole; 7. Limiting tube; 8. Pin; 9. Movable block; 10. Cap; 11. Compression spring; 12. Handle. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figure 1-3 As shown, the present invention provides an easily detachable wheelchair armrest, including a positioning seat 1 fixed on the wheelchair backrest frame, and the positioning seat 1 is provided with a vertically downward insertion cavity 2. The end of the armrest 3 is provided with an insertion strip 4 inserted into the insertion cavity 2, and the positioning seat 1 is provided with a positioning mechanism for fixing the insertion strip 4 inserted into the insertion cavity 2.

[0022] The positioning mechanism includes an insertion hole 5 disposed on the positioning seat 1 and communicating with the insertion cavity 2, and the insertion strip 4 is provided with a through hole 6 corresponding to the position of the insertion hole 5. The positioning seat 1 is provided with a limiting tube 7 communicating with the insertion hole 5, and a pin 8 is provided inside the limiting tube 7. The pin 8 is provided with a movable block 9 that moves along the limiting tube 7. The outer end of the limiting tube 7 is provided with a cap 10, and the end of the pin 8 passes through the cap 10. A compression spring 11 is provided between the cap 10 and the movable block 9. The pin 8 is inserted between the insertion hole 5 and the through hole 6. Positioning is achieved by fixing a positioning seat 1 to the backrest frame of the wheelchair. The positioning seat 1 has a vertically downward insertion cavity 2. The end of the armrest 3 has an insertion strip 4 that is inserted into the insertion cavity 2. The positioning seat 1 has an insertion hole 5 that communicates with the insertion cavity 2. The insertion strip 4 has a through hole 6 that corresponds to the position of the insertion hole 5. Positioning is achieved by inserting a pin between the insertion hole 5 and the through hole 6. The wheelchair is fixed in a boltless manner, which is convenient for installation and disassembly and has a simple structure.

[0023] The end of the pin 8 is provided with a downward-bent handle 12, which facilitates pulling the pin back and effectively avoids hand injuries during daily use. The cross-section of the cavity 2 is a flat rectangular structure. The outer contour of the insert 4 is adapted to the inner contour of the cavity 2. There are two pins 8, and the specific number can be set according to usage requirements. The upper surface of the armrest 3 is provided with a sponge layer.

[0024] Working principle: A positioning seat 1 is fixed on the wheelchair backrest frame. The positioning seat 1 has a vertically downward insertion cavity 2. The end of the armrest 3 has an insertion strip 4 that is inserted into the insertion cavity 2. There is an insertion hole 5 on the positioning seat 1 that communicates with the insertion cavity 2. The insertion strip 4 has a through hole 6 that corresponds to the position of the insertion hole 5. Then, the positioning is achieved by inserting a pin between the insertion hole 5 and the through hole 6. The wheelchair is fixed in a boltless manner, which is convenient for installation and disassembly and has a simple structure.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A detachable wheelchair armrest, characterized in that, It includes a positioning seat (1) fixed on the backrest frame of the wheelchair, and the positioning seat (1) is provided with a vertically downward insertion cavity (2), the end of the armrest (3) is provided with an insertion strip (4) inserted into the insertion cavity (2), and the positioning seat (1) is provided with a positioning mechanism for fixing the insertion strip (4) inserted into the insertion cavity (2); The positioning mechanism includes an insertion hole (5) on the positioning seat (1) and communicating with the insertion cavity (2), and the insertion strip (4) is provided with a through hole (6) corresponding to the position of the insertion hole (5), and the positioning seat (1) is provided with a limiting tube (7) communicating with the insertion hole (5), and the limiting tube (7) is provided with a pin (8), and the pin (8) is provided with a movable block (9) that moves along the limiting tube (7), and the outer end of the limiting tube (7) is provided with a cap (10), and the end of the pin (8) passes through the cap (10), and a compression spring (11) is provided between the cap (10) and the movable block (9), and the pin (8) is inserted between the insertion hole (5) and the through hole (6).

2. The easily detachable wheelchair armrest according to claim 1, characterized in that, The end of the pin (8) is provided with a downward-bent handle (12).

3. The easily detachable wheelchair armrest according to claim 1, characterized in that, The cross-section of the insertion cavity (2) is a flat rectangular structure.

4. The easily detachable wheelchair armrest according to claim 1, characterized in that, The outer wheelchair of the insert (4) is adapted to the inner contour of the insert cavity (2).

5. The easily detachable wheelchair armrest according to claim 1, characterized in that, The pin (8) is provided in two parts.

6. The easily detachable wheelchair armrest according to claim 3, characterized in that, The upper surface of the handrail (3) is provided with a sponge layer.

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