Detachable stair climbing wheelchair

Abstract

The utility model relates to the technical field of wheelchairs, in particular to a detachable stair-climbing wheelchair which comprises a wheelchair body, a stair-climbing crawler belt machine and a quick-dismounting assembling mechanism, the quick-dismounting assembling mechanism comprises two H-shaped pipe clamps and two plug pins, the two H-shaped pipe clamps are fixed to the two sides of the rear portion of a seat pipe frame of the wheelchair body respectively, and the plug pins are inserted into the H-shaped pipe clamps. A main beam pipe of the stair-climbing crawler belt machine is inserted into clamping openings of the two H-shaped pipe clamps, when the wheelchair and the stair-climbing crawler belt machine are installed together, the two plug pins sequentially penetrate through upper clamping heads of the two H-shaped pipe clamps and the main beam pipe to the bottoms of lower clamping heads of the H-shaped pipe clamps respectively, and snap spring marbles are arranged on the two sides of the lower portions of the two plug pins respectively. The wheelchair and the stair-climbing crawler machine can be conveniently and quickly disassembled and assembled by arranging the quick disassembling and assembling mechanism, the stair-climbing function is achieved, the wheelchair can be independently used and light and convenient to run on the ground, and generally, the wheelchair is more flexible to use and has higher use value.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair technology, and in particular to a detachable stair-climbing wheelchair. Background Technology

[0002] To address the difficulties faced by the elderly and people with physical disabilities in climbing stairs and to provide them with more convenient mobility tools, enabling their reintegration into society, various tracked electric stair-climbing wheelchairs have been developed. The basic functions of these electric stair-climbing wheelchairs are climbing stairs and navigating flat ground. However, current electric stair-climbing wheelchairs, due to their emphasis on certain technical features, have complex architectures and high equipment costs, making them difficult to popularize, especially among low-income families. Furthermore, current electric tracked stair-climbing wheelchairs focus too much on stair-climbing functionality and neglect their performance on flat ground, making them less agile than ordinary wheelchairs when navigating flat ground.

[0003] To address the aforementioned issues, this application discloses a detachable stair-climbing wheelchair. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model discloses a detachable stair-climbing wheelchair.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a detachable stair-climbing wheelchair, comprising a wheelchair, a stair-climbing track, and a quick-release assembly mechanism. The quick-release assembly mechanism includes two H-shaped pipe clamps and two pins. The two H-shaped pipe clamps are respectively fixed to the rear sides of the wheelchair seat frame. The main beam tube of the stair-climbing track is inserted into the clamping openings of the two H-shaped pipe clamps. When the wheelchair and the stair-climbing track are installed together, the two pins pass through the upper clamps of the two H-shaped pipe clamps and the main beam tube to the bottom of the lower clamps of the H-shaped pipe clamps in sequence. Snap springs are provided on both sides below the two pins.

[0006] More preferably, the opening angle of the H-shaped tube clamp on the side closer to the wheelchair is greater than the opening angle of the clamp opening.

[0007] A further preferred embodiment is that the clamping opening of the H-shaped pipe clamp is designed as a U-shaped structure that is compatible with the main beam pipe of the stair-climbing crawler.

[0008] More preferably, the pin head has a radial through hole, and the radial through hole has an outwardly extending pull ring.

[0009] More preferably, the upper and lower clamps of the two H-shaped pipe clamps are respectively provided with a first cylindrical hole and a second cylindrical hole, and the main beam pipe of the stair climbing track machine is provided with a third cylindrical hole on both sides. When the wheelchair and the stair climbing track machine are installed together, the pin passes through the first cylindrical hole, the third cylindrical hole and the second cylindrical hole in sequence to the bottom of the H-shaped pipe clamp.

[0010] A further preferred embodiment is that the retaining springs on both sides below each pin are symmetrical about the center of the pin.

[0011] This utility model achieves the following beneficial effects:

[0012] This utility model, by setting up a quick-release assembly mechanism, allows for easy and rapid assembly and disassembly of the wheelchair and the stair-climbing track machine. It not only realizes the function of climbing stairs, but also allows the wheelchair to be used independently and move easily on the ground. Overall, it is quite flexible in use and has high practical value.

[0013] Other features and advantages of this invention will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the specification, serve to explain the principles of the disclosure.

[0015] Figure 1 This is a schematic diagram of the overall structure disclosed in this utility model;

[0016] Figure 2 This is a schematic diagram of the exploded structure disclosed in this utility model;

[0017] Figure 3 This is a schematic diagram of the H-shaped pipe clamp structure disclosed in this utility model;

[0018] Figure 4 This is a schematic diagram of the pin structure disclosed in this utility model;

[0019] In the diagram: 10, wheelchair; 20, stair-climbing tracked machine; 21, main beam tube; 211, third cylindrical hole; 30, quick-release assembly mechanism; 31, H-shaped pipe clamp; 311, clamping jaw; 312, first cylindrical hole; 313, second cylindrical hole; 32, pin; 321, snap ring ball; 322, radial through hole; 323, pull ring. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Example

[0023] To address the issue that existing stair-climbing wheelchairs are designed primarily for climbing stairs, thus hindering their ease of movement on the ground, this paper references... Figures 1-4 As shown, this application discloses a detachable stair-climbing wheelchair, including a wheelchair 10, a stair-climbing track 20, and a quick-release assembly mechanism 30. The quick-release assembly mechanism 30 includes two H-shaped tube clamps 31 and two pins 32. The two H-shaped tube clamps 31 are respectively fixed to the rear sides of the seat tube frame of the wheelchair 10. The main beam tube 21 of the stair-climbing track 20 is inserted into the clamping openings 311 of the two H-shaped tube clamps 31. When the wheelchair 10 and the stair-climbing track 20 are assembled together, the two pins 32 pass through the upper clamps of the two H-shaped tube clamps 31 in sequence. The head, main beam tube 21 to the bottom of the lower clamp of H-shaped pipe clamp 31, and the two pins 32 are respectively provided with snap ring balls 321 on both sides below. The snap ring balls 321 provided on both sides below each pin 32 are symmetrical about the center of the pin 32. Based on the above structure, when the user climbs the stairs, he / she can directly run on the stairs by the stair climbing track 20. When the stair climbing track 20 is dismantled, the operator manually controls the snap ring balls 321 to retract and pull out the pins 32. At this time, the user can use the wheelchair 10 to travel on the ground alone.

[0024] To increase the installation stability of the two H-shaped pipe clamps, the opening angle of the H-shaped pipe clamps on the side closer to the wheelchair 10 is greater than the opening angle of the clamp 311. In addition, in order to enable the main beam pipe 21 of the stair climbing track 20 to be inserted into the clamp 311 of the H-shaped pipe clamp 31, the clamp 311 of the H-shaped pipe clamp 31 is designed as a U-shaped structure that is compatible with the main beam pipe 21 of the stair climbing track 20. During installation, the main beam pipe 21 of the stair climbing track 20 will abut against the arc-shaped part of the clamp 311 of the U-shaped structure.

[0025] In a preferred embodiment, the present application provides a radial through hole 322 in the radial direction of the pin head of the pin 32, and a pull ring 323 extending outward in the radial through hole 322. When dismantling the stair-climbing track machine 20, the operator can pull out the pin 32 through the pull ring 323 after the air spring ball 321 retracts inward. The operation is more convenient and has high practicality.

[0026] In order to enable the pin 32 to smoothly fix the stair-climbing track machine 20 in the two H-shaped pipe clamps 31, the present application provides a first cylindrical hole 312 and a second cylindrical hole 313 on the upper and lower clamps of the two H-shaped pipe clamps 31, respectively. A third cylindrical hole 211 is provided on both sides of the main beam pipe 21 of the stair-climbing track machine 20. When the wheelchair 10 and the stair-climbing track machine 20 are installed together, the pin 32 passes through the first cylindrical hole 312, the third cylindrical hole 211 and the second cylindrical hole 313 in sequence to the bottom of the H-shaped pipe clamp 31.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A detachable stair-climbing wheelchair, characterized in that, The system includes a wheelchair (10), a stair-climbing track machine (20), and a quick-release assembly mechanism (30). The quick-release assembly mechanism (30) includes two H-shaped pipe clamps (31) and two pins (32). The two H-shaped pipe clamps (31) are fixed to the rear sides of the seat tube frame of the wheelchair (10). The main beam tube (21) of the stair-climbing track machine (20) is inserted into the clamping openings (311) of the two H-shaped pipe clamps (31). When the wheelchair (10) and the stair-climbing track machine (20) are installed together, the two pins (32) pass through the upper clamp of the two H-shaped pipe clamps (31), the main beam tube (21), and the bottom of the lower clamp of the H-shaped pipe clamps (31) in sequence. The two pins (32) are respectively provided with spring balls (321) on the lower sides.

2. The detachable stair-climbing wheelchair according to claim 1, characterized in that, The opening angle of the H-shaped tube clamp on the side closer to the wheelchair (10) is greater than the opening angle of the clamp (311).

3. The detachable stair-climbing wheelchair according to claim 1, characterized in that, The clamp (311) of the H-shaped pipe clamp (31) is designed as a U-shaped structure that is compatible with the main beam pipe (21) of the stair climbing track machine (20).

4. The detachable stair-climbing wheelchair according to claim 1, characterized in that, The pin (32) has a radial through hole (322) on its head, and a pull ring (323) extending outward is provided in the radial through hole (322).

5. A detachable stair-climbing wheelchair according to claim 1, characterized in that, The upper and lower clamps of the two H-shaped pipe clamps (31) are respectively provided with a first cylindrical hole (312) and a second cylindrical hole (313). The main beam pipe (21) of the stair climbing track machine (20) is provided with a third cylindrical hole (211) on both sides. When the wheelchair (10) and the stair climbing track machine (20) are installed together, the pin (32) passes through the first cylindrical hole (312), the third cylindrical hole (211) and the second cylindrical hole (313) in sequence to the bottom of the H-shaped pipe clamp (31).

6. A detachable stair-climbing wheelchair according to claim 1, characterized in that, The snap ring beads (321) arranged on both sides below each pin (32) are symmetrical about the center of the pin (32).

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