Wheelchair front cross-country wheel capable of being quickly assembled and disassembled

Abstract

The invention relates to the technical field of wheelchairs, in particular to a wheelchair front cross-country wheel capable of being quickly assembled and disassembled, which is applied to wheelchairs and comprises a cross-country wheel assembly, a connecting assembly and a mounting assembly, a wall pipe is fixedly connected to the wheelchair, and the mounting assembly is clamped on the wall pipe; the cross-country wheel assembly comprises a cross-country wheel, a connecting frame and a fender, the cross-country wheel is rotationally connected to the connecting frame, and the fender is fixedly connected to the connecting frame; the connecting assembly comprises an adjusting plate and a first hoop, a plurality of second through holes are formed in the adjusting plate, the first hoop is detachably connected to one side of the adjusting plate, an angle adjusting assembly is arranged on the other side of the adjusting plate, and the adjusting plate is detachably connected to the connecting frame through the angle adjusting assembly. The passing ability of the manual wheelchair can be improved, and the device is convenient to disassemble and assemble, wide in application range, capable of being matched with wheelchairs of different models and convenient to carry and maintain.

Description

Technical Field

[0001] The invention relates to the technical field of wheelchairs, and in particular to a front off-road wheel of a wheelchair which can be quickly assembled and disassembled. Background Art

[0002] A wheelchair is a chair with wheels, used to help the injured, sick and disabled with home rehabilitation, turnover transportation, medical treatment and outings. Manual wheelchairs are mainly operated by handwheel drive, hand crank drive or hand push drive. The common manual wheelchair is a four-wheel design with two additional wheels, so that the drive wheel (rear wheel) is installed directly under the seat, which makes it easier and more labor-saving for users to push and more sensitive to turn.

[0003] The existing technology still has the following areas for improvement: manual wheelchairs on the market have poor passability when facing uneven terrain with obstacles, and usually require a lot of effort to pass through uneven sections, which is time-consuming and laborious. Summary of the invention

[0004] In order to solve the above-mentioned problems existing in the prior art, the present invention provides a wheelchair front off-road wheel that can be quickly assembled and disassembled, which can increase the passability of a manual wheelchair. The equipment is easy to assemble and disassemble, has a wide range of applications, can be adapted to different models of wheelchairs, and is easy to carry and maintain.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A wheelchair front off-road wheel that can be quickly assembled and disassembled is applied to a wheelchair, comprising an off-road wheel assembly, a connecting assembly and a mounting assembly, wherein a wall tube is fixedly connected to the wheelchair, and the mounting assembly is clamped on the wall tube;

[0007] The off-road wheel assembly comprises an off-road wheel, a connecting frame and a fender, wherein the off-road wheel is rotatably connected to the connecting frame, and the fender is fixedly connected to the connecting frame;

[0008] The connecting assembly comprises an adjusting plate and a first clamp, the adjusting plate is provided with a plurality of second through holes, the first clamp is detachably connected to one side of the adjusting plate, an angle adjustment assembly is provided on the other side of the adjusting plate, and the adjusting plate is detachably connected to the connecting frame through the angle adjustment assembly;

[0009] The mounting assembly includes a telescopic shaft, a locking shaft, a hanging shaft, a holding mechanism, a second holding hoop and a mounting plate. The first holding hoop is sleeved on the telescopic shaft. Two second holding hoops are provided. The two second holding hoops are symmetrically sleeved on both sides of the telescopic shaft. A plurality of third through holes are provided on one side of the mounting plate. The telescopic shaft is detachably connected to the mounting plate. The holding mechanism is detachably connected to the mounting plate via the locking shaft and the hanging shaft.

[0010] Preferably, the angle adjustment assembly comprises a bolt, a first through hole and a fourth through hole, and the first through hole is arranged in an elliptical shape.

[0011] Preferably, the plurality of second through holes are all opened on the same side of the adjustment plate, and the plurality of second through holes are arranged in a vertical row.

[0012] Preferably, the holding mechanism includes a hook plate, a third holding hoop, a first pad and a second pad, the third holding hoop is fixedly connected to one side of the first pad, and the hook plate is arranged between the first pad and the second pad.

[0013] Preferably, the adjacent surfaces of the first cushion block and the second cushion block to the hook plate are both provided with arcs.

[0014] Preferably, a notch is provided on the upper portion of the hook plate, the notch of the hook plate matches the hanging shaft, and the hanging shaft passes through the notch of the hook plate.

[0015] Preferably, a through hole is provided on the upper portion of the hook plate, a positioning plate is provided on the upper portion of the hook plate, and the positioning plate is provided in a U-shape.

[0016] Preferably, the position of the through hole of the hook plate corresponds to the position of the U-shaped opening of the positioning plate.

[0017] Preferably, the through hole of the hook plate and the U-shaped opening of the positioning plate match the lock shaft.

[0018] Preferably, the lock shaft passes through the through hole of the hook plate and the U-shaped opening of the positioning plate.

[0019] The beneficial effects of the present invention are:

[0020] (1) By setting up an off-road wheel assembly, the technical effect that can be achieved is that the off-road wheel can better cope with complex terrain such as uneven ground, gravel, grass, etc., and enhance the adaptability of the wheelchair. The off-road wheel cooperates with the wheelchair, allowing the wheelchair to cross small obstacles more easily, and can disperse the weight and provide better grip, thereby increasing stability and reducing the risk of tipping over. The off-road wheel provides a better shock absorption system, which can effectively absorb the vibration caused by the uneven ground, thereby improving the user's comfort and reducing fatigue.

[0021] (2) By setting up the connection component and the installation component, the technical effect that can be achieved is that the adjustment plate is detachably connected to the connection frame through the angle adjustment component, which is convenient for adjusting the installation angle and height during installation. The telescopic shaft is convenient for telescopic adjustment in coordination with the wall tubes of different models of wheelchairs, thereby increasing the application range of the equipment. A plurality of third through holes are opened on one side of the installation plate, and the telescopic shaft is detachably connected to the installation plate, which is convenient for adjusting the installation height of the telescopic shaft.

[0022] (3) By setting the connecting component and the installing component, the technical effect that can be achieved is that the hook plate is set between the first cushion block and the second cushion block; the adjacent surfaces of the first cushion block and the second cushion block and the hook plate are all provided with an arc, and the wall tubes of different models of wheelchairs have different inclination angles, which is convenient for adjusting the hook plate to a suitable angle according to the inclination angle of the wall tube, and convenient for subsequent installation of the equipment on the wall tube, thereby improving the coordination between the equipment and the wheelchair, increasing the passability of the wheelchair on uneven roads, and improving the versatility of the equipment. The holding mechanism and the mounting plate structure are closely matched, which is convenient for stably fixing the mounting plate on the holding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0024] Figure 1 A three-dimensional diagram of the present invention mounted on a wheelchair;

[0025] Figure 2 It is a left side view of the present invention assembled on a wheelchair;

[0026] Figure 3 A front view of the present invention assembled on a wheelchair;

[0027] Figure 4 It is a left side view of the present invention;

[0028] Figure 5 A perspective view of the present invention;

[0029] Figure 6 It is a front view of the present invention;

[0030] Figure 7 It is a rear view of the present invention;

[0031] Figure 8 It is a three-dimensional diagram of the holding mechanism in the present invention;

[0032] Fig. 9 It is a three-dimensional diagram of the connection assembly in the present invention;

[0033] Description of main component symbols:

[0034] In the figure: 1, wheelchair; 2, wall tube; 3, off-road wheel; 4, connecting frame; 5, mudguard; 6, adjustment plate; 601, first through hole; 602, second through hole; 603, first clamp; 604, fourth through hole; 7, telescopic shaft; 8, locking shaft; 9, hanging shaft; 10, third through hole; 11, clamping mechanism; 1101, hook plate; 1102, third clamp; 1103, first cushion block; 1104, second cushion block; 1105, positioning plate; 12, second clamp; 13, mounting plate. DETAILED DESCRIPTION

[0035] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are clearly and completely described below in combination with the accompanying drawings and preferred embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present application, it should be understood that the orientation or position relationship indicated by "inside" or "outside" is based on the orientation or position described in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, specific orientation structure and operation, and therefore cannot be understood as a limitation on the present application.

[0037] Reference Figures 1 to 9 The present invention discloses a wheelchair front off-road wheel that can be quickly assembled and disassembled, which is applied to a wheelchair 1 and includes an off-road wheel assembly, a connecting assembly and a mounting assembly. The wheelchair 1 is fixedly connected with a wall tube 2, and the mounting assembly is clamped on the wall tube 2;

[0038] The off-road wheel assembly includes an off-road wheel 3, a connecting frame 4 and a fender 5. The off-road wheel 3 is rotatably connected to the connecting frame 4, and the fender 5 is fixedly connected to the connecting frame 4. The off-road wheel 3 can better cope with complex terrains such as uneven ground, gravel, grass, etc., and enhance the adaptability of the wheelchair. The off-road wheel 3 cooperates with the wheelchair 1, so that the wheelchair 1 can more easily cross small obstacles, and can disperse the weight, provide better grip, thereby increasing stability and reducing the risk of tipping over. The off-road wheel 3 provides a better shock absorption system, which can effectively absorb the vibration caused by the uneven ground, thereby improving the user's comfort and reducing fatigue.

[0039] The connection assembly includes an adjustment plate 6 and a first clamp 603. The adjustment plate 6 is provided with a plurality of second through holes 602. The first clamp 603 is detachably connected to one side of the adjustment plate 6. An angle adjustment assembly is provided on the other side of the adjustment plate 6. The adjustment plate 6 is detachably connected to the connection frame 4 through the angle adjustment assembly, so as to facilitate adjustment of the installation angle and height during installation.

[0040] The mounting assembly includes a telescopic shaft 7, a locking shaft 8, a hanging shaft 9, a holding mechanism 11, a second holding hoop 12 and a mounting plate 13. The first holding hoop 603 is sleeved on the telescopic shaft 7. Two second holding hoops 12 are provided. The two second holding hoops 12 are symmetrically sleeved on both sides of the telescopic shaft 7. The telescopic shaft 7 is convenient for telescopic adjustment with the wall tube 2 of wheelchairs 1 of different models, thereby increasing the application range of the equipment. A plurality of third through holes 10 are provided on one side of the mounting plate 13. The telescopic shaft 7 is detachably connected to the mounting plate 13, which is convenient for adjusting the installation height of the telescopic shaft 7. The holding mechanism 11 is detachably connected to the mounting plate 13 through the locking shaft 8 and the hanging shaft 9.

[0041] Reference Figures 1 to 5 as well as Fig. 9 The angle adjustment assembly includes a bolt, a first through hole 601 and a fourth through hole 604, wherein the first through hole 601 is elliptical in shape; a plurality of second through holes 602 are all disposed on the same side of the adjustment plate 6, and the plurality of second through holes 602 are arranged in a vertical row.

[0042] Reference Figures 2 to 8 The holding mechanism 11 includes a hook plate 1101, a third clamp 1102, a first cushion block 1103 and a second cushion block 1104. The third clamp 1102 is fixedly connected to one side of the first cushion block 1103. The hook plate 1101 is arranged between the first cushion block 1103 and the second cushion block 1104. The adjacent surfaces of the first cushion block 1103, the second cushion block 1104 and the hook plate 1101 are all provided with radians. The inclination angles of the wall tube 2 of wheelchairs 1 of different models are different, so it is convenient to adjust the hook plate 1101 to a suitable angle according to the inclination angle of the wall tube 2, so as to facilitate the subsequent installation of the equipment on the wall tube 2, thereby improving the coordination between the equipment and the wheelchair 1, increasing the passability of the wheelchair 1 on uneven roads, and improving the versatility of the equipment.

[0043] Reference Figures 2 to 8 A notch is provided on the upper part of the hook plate 1101, and the notch of the hook plate 1101 matches the hanging shaft 9, and the hanging shaft 9 passes through the notch of the hook plate 1101; a through hole is provided on the upper part of the hook plate 1101, and a positioning plate 1105 is provided on the upper part of the hook plate 1101, and the positioning plate 1105 is U-shaped; the position of the through hole of the hook plate 1101 corresponds to the position of the U-shaped opening of the positioning plate 1105; the through hole of the hook plate 1101 and the U-shaped opening of the positioning plate 1105 match the locking shaft 8; the locking shaft 8 passes through the through hole of the hook plate 1101 and the U-shaped opening of the positioning plate 1105, and the structures are closely matched, which is convenient for stably fixing the mounting plate 13 on the holding mechanism 11.

[0044] The cooperation between the device and the wheelchair 1 can increase the passability of the wheelchair 1 on uneven roads. The device is easy to assemble and disassemble, has a wide range of applications, can be adapted to wheelchairs 1 of different models, and is easy to carry and maintain.

[0045] The working principle and use process of the present invention are as follows: the opening size of the third clamp 1102 is adjusted according to the diameter of the wall tube 2 connected to the wheelchair 1, so that the clamp mechanism 11 is stably clamped on the wall tube 2, and the hook plate 1101 is adjusted to a suitable angle through the arc surface cooperation of the first cushion block 1103 and the second cushion block 1104 according to the inclination angle of the wall tube 2.

[0046] Install the off-road wheel assembly on the adjustment plate 6, and fine-tune the installation angle and height of the off-road wheel assembly through the angle adjustment assembly. Install the first clamp 603 on the adjustment plate 6 and adjust it to a suitable height through the second through hole 602, and sleeve the first clamp 603 on the telescopic shaft 7.

[0047] The telescopic shaft 7 is telescopically adjusted to a suitable length in accordance with the overall width of the wall tube 2 , and is clamped and fixed using the second clamp 12 . The telescopic shaft 7 is installed on the mounting plate 13 and adjusted to a suitable height through the third through hole 10 .

[0048] The mounting plate 13 is mounted on the holding mechanism 11 through the hanging shaft 9 and the locking shaft 8, so that the device is installed on the wall tube 2 as a whole, so that the device and the wheelchair 1 can cooperate with each other, and the passability of the wheelchair 1 is increased when facing uneven roads.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A wheelchair front off-road wheel capable of being quickly assembled and disassembled, applied to a wheelchair (1), characterized in that: It comprises an off-road wheel assembly, a connection assembly and a mounting assembly, the wheelchair (1) is fixedly connected to a wall tube (2), and the mounting assembly is clamped on the wall tube (2); The off-road wheel assembly comprises an off-road wheel (3), a connecting frame (4) and a fender (5), wherein the off-road wheel (3) is rotatably connected to the connecting frame (4), and the fender (5) is fixedly connected to the connecting frame (4); The connection assembly comprises an adjustment plate (6) and a first clamp (603); the adjustment plate (6) is provided with a plurality of second through holes (602); the first clamp (603) is detachably connected to one side of the adjustment plate (6); an angle adjustment assembly is provided on the other side of the adjustment plate (6); and the adjustment plate (6) is detachably connected to the connection frame (4) via the angle adjustment assembly; The mounting assembly comprises a telescopic shaft (7), a locking shaft (8), a hanging shaft (9), a holding mechanism (11), a second holding hoop (12) and a mounting plate (13); the first holding hoop (603) is sleeved on the telescopic shaft (7); two second holding hoops (12) are provided, and the two second holding hoops (12) are symmetrically sleeved on both sides of the telescopic shaft (7); a plurality of third through holes (10) are provided on one side of the mounting plate (13); the telescopic shaft (7) is detachably connected to the mounting plate (13); and the holding mechanism (11) is detachably connected to the mounting plate (13) via the locking shaft (8) and the hanging shaft (9).

2. The wheelchair front off-road wheel capable of quick assembly and disassembly according to claim 1, characterized in that: The angle adjustment assembly comprises a bolt, a first through hole (601) and a fourth through hole (604), wherein the first through hole (601) is arranged in an elliptical shape.

3. The wheelchair front off-road wheel capable of quick assembly and disassembly according to claim 1, characterized in that: The plurality of second through holes (602) are all opened on the same side of the adjustment plate (6), and the plurality of second through holes (602) are arranged in a vertical row.

4. The wheelchair front off-road wheel capable of quick assembly and disassembly according to claim 1, characterized in that: The holding mechanism (11) comprises a hook plate (1101), a third holding hoop (1102), a first cushion block (1103) and a second cushion block (1104); the third holding hoop (1102) is fixedly connected to one side of the first cushion block (1103); and the hook plate (1101) is arranged between the first cushion block (1103) and the second cushion block (1104).

5. The wheelchair front off-road wheel capable of quick assembly and disassembly according to claim 4, characterized in that: The adjacent surfaces of the first cushion block (1103) and the second cushion block (1104) and the hook plate (1101) are both provided with arcs.

6. The wheelchair front off-road wheel capable of rapid assembly and disassembly according to claim 4, characterized in that: The upper part of the hook plate (1101) is provided with a notch, the notch of the hook plate (1101) matches the hanging shaft (9), and the hanging shaft (9) passes through the notch of the hook plate (1101).

7. The wheelchair front off-road wheel capable of rapid assembly and disassembly according to claim 4, characterized in that: A through hole is provided on the upper portion of the hook plate (1101), and a positioning plate (1105) is provided on the upper portion of the hook plate (1101), wherein the positioning plate (1105) is arranged in a U shape.

8. The wheelchair front off-road wheel capable of rapid assembly and disassembly according to claim 7, characterized in that: The position of the through hole of the hook plate (1101) corresponds to the position of the U-shaped opening of the positioning plate (1105).

9. The wheelchair front off-road wheel capable of quick assembly and disassembly according to claim 8, characterized in that: The through hole of the hook plate (1101) and the U-shaped opening of the positioning plate (1105) match the locking shaft (8).

10. The wheelchair front off-road wheel capable of rapid assembly and disassembly according to claim 1, characterized in that: The locking shaft (8) passes through the through hole of the hook plate (1101) and the U-shaped opening of the positioning plate (1105).

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