CN213501639U - Rear wheel quick dismounting structure for wheelchair - Google Patents
Rear wheel quick dismounting structure for wheelchair Download PDFInfo
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- CN213501639U CN213501639U CN202022272251.9U CN202022272251U CN213501639U CN 213501639 U CN213501639 U CN 213501639U CN 202022272251 U CN202022272251 U CN 202022272251U CN 213501639 U CN213501639 U CN 213501639U
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Abstract
The utility model discloses a rear wheel quick assembly disassembly structure for a wheelchair, which comprises a structure main body, wherein the structure main body comprises a wheelchair frame, a rear wheel component and a quick disassembly handle; an idle gear and a hook are arranged on the inner side of the wheelchair frame, a chute gear is arranged between the hook and the wheelchair frame, and the chute gear is meshed with the idle gear; a first rear axle tension spring is arranged between the wheelchair frame and the idle gear; a slide passing plate is arranged between the wheelchair frame and the chute gear, and a second rear axle tension spring is arranged between the slide passing plate and the chute gear; a sliding rod vertically connected with the wheelchair frame is arranged on the outer side of the wheelchair frame, and a rotating sheet and a pushing sheet which are mutually connected are arranged on the outer side of the sliding rod; the rear wheel assembly comprises a rear frame, and rear wheels are symmetrically arranged on two sides of the rear frame; the utility model has the advantages of quick and convenient disassembly and assembly of the rear wheel component, separation of the weight of the wheelchair and convenient carrying.
Description
Technical Field
The utility model relates to the technical field of wheelchairs, in particular to a rear wheel quick assembly disassembly structure for a wheelchair.
Background
The wheelchair is an important tool for rehabilitation, not only is the walking tool for the disabled with limbs injured, but also is more important for the disabled to do physical exercise and participate in social activities by means of the wheelchair.
The mounting structure of the existing rear wheel on the wheelchair frame is complex, and the mounting position of the rear wheel is fixed and can not be adjusted as required, so that the wheelchair frame is suitable for different places, has the defects of fixed structure, inconvenient and quick disassembly and assembly and inconvenient carrying.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a rear wheel quick assembly disassembly structure for a wheelchair, which can effectively solve the problem provided by the background technology.
The utility model provides a technical scheme that its technical problem adopted is:
a rear wheel quick dismounting structure for a wheelchair comprises a structure main body, wherein the structure main body comprises a wheelchair frame, a rear wheel assembly detachably connected with the wheelchair frame and a quick dismounting handle arranged between the wheelchair frame and the wheelchair frame;
an idle gear and a hook are arranged on the inner side of the wheelchair frame, a chute gear is arranged between the hook and the wheelchair frame, and the chute gear is meshed with the idle gear;
a first rear axle tension spring is arranged between the wheelchair frame and the idle gear;
a slide passing plate is arranged between the wheelchair frame and the chute gear, and a second rear axle tension spring is arranged between the slide passing plate and the chute gear;
a sliding rod vertically connected with the wheelchair frame is arranged on the outer side of the wheelchair frame, and a rotating sheet and a pushing sheet which are mutually connected are arranged on the outer side of the sliding rod;
the quick release handle is arranged between the idle gear and connected with the sliding chute gear;
the rear wheel assembly comprises a rear frame, and rear wheels are symmetrically arranged on two sides of the rear frame.
Preferably, the structure main body comprises two groups of wheelchair frames which are symmetrically arranged, the two groups of wheelchair frames are respectively composed of a front wheel connecting frame and a rear wheel connecting frame assembly, and a damping mechanism is arranged between the front wheel connecting frame and the rear wheel connecting frame.
Preferably, the rotating piece is positioned above the pushing piece, and the rotating piece is rotatably connected with the pushing piece.
Preferably, the outer side of the rear frame is provided with an anti-tilting wheel which is positioned between the two groups of rear wheels.
Preferably, the inner side of the rear wheel is provided with a motor in driving connection with the rear wheel.
Preferably, a supporting rod is arranged between the sliding rods, and two ends of the first rear axle tension spring are respectively connected with the supporting rod and the idle gear.
Preferably, two ends of the second rear axle tension spring are respectively connected with the quick-release handle and the overload sheet, and the overload sheet is connected with the chute gear.
Preferably, the rear frame is provided with a hook groove connected with the hook.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model has the advantages of rapid disassembly and assembly of the rear wheel component, simple operation, separation of the weight of the wheelchair and convenient carrying; when the rear wheel assembly is dismounted, the quick-dismounting handle is pulled towards the direction of the rear wheel assembly, the sliding groove gear moves along with the quick-dismounting handle, so that the hook is forced to rotate to leave the hook groove, the rear wheel assembly can be taken out of the wheelchair frame, and the operation is simple and convenient; the front sliding rod of the rear wheel assembly is dismounted and is collected in the wheelchair frame, when the quick-dismounting handle is moved, the sliding chute gear moves backwards to drive the idle gear to rotate clockwise, so that the rotating piece is driven to rotate, the rotating piece drives the pushing piece to rotate and move downwards, so that the sliding rod is pushed to move downwards until the sliding rod supports the ground, at the moment, the rear wheel assembly is taken off from the wheelchair, the wheelchair frame cannot be fallen, the height of the wheelchair cannot be changed, and the sliding rod can well support the ground due to the action of the first rear axle tension spring and the second rear axle tension spring, so that the stability is good; when the rear wheel assembly is installed, the rear wheel assembly is moved until the sliding groove gear is propped against the sliding groove gear, the sliding groove gear is forced to move towards the direction of the wheelchair frame, the hook is driven to rotate, the hook is forced to be hung and buckled in the hook groove, the sliding groove gear can drive the idle hanging gear to rotate when moving towards the direction of the wheelchair frame, the idle hanging gear drives the rotating piece to rotate, the pushing piece is forced to move upwards, the sliding rod is retracted into the wheelchair frame, and the operation is simple and convenient.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
figure 2 is a schematic view of the wheelchair frame and rear wheel assembly of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-2, the present embodiment discloses a rear wheel quick-release structure for a wheelchair, which includes a structural body, the structural body includes a wheelchair frame 001, a rear wheel assembly 002 detachably connected to the wheelchair frame 001, and a quick-release handle 07 installed between the wheelchair frame 001 and the wheelchair frame 001; an idle gear 02 and a hook 05 are arranged on the inner side of the wheelchair frame 001, a chute gear 04 is arranged between the hook 05 and the wheelchair frame 001, and the chute gear 04 is meshed with the idle gear 02; a first rear axle tension spring 01 is arranged between the wheelchair frame 001 and the idle gear 02; a slide passing sheet 03 is arranged between the wheelchair frame 001 and the chute gear 04, and a second rear axle tension spring 06 is arranged between the slide passing sheet 03 and the chute gear 04; a sliding rod 12 vertically connected with the wheelchair frame 001 is arranged on the outer side of the wheelchair frame 001, and a rotating sheet 11 and a pushing sheet 13 which are mutually connected are arranged on the outer side of the sliding rod 2; the quick-release handle 07 is arranged between the idle gear 02 and is connected with the chute gear 04; the rear wheel assembly 002 comprises a rear frame 08, and rear wheels 09 are symmetrically arranged on two sides of the rear frame 08.
In this embodiment, the structural body includes two sets of symmetrically arranged wheelchair frames 001, the two sets of wheelchair frames 001 are respectively composed of a front wheel connecting frame and a rear wheel connecting frame assembly, and a damping mechanism is arranged between the front wheel connecting frame and the rear wheel connecting frame; the rotating piece 11 is positioned above the pushing piece 13, and the rotating piece 11 is rotationally connected with the pushing piece 13; an anti-tilting wheel 10 is arranged on the outer side of the rear frame 08, and the anti-tilting wheel 10 is positioned between the two groups of rear wheels 09; the inner side of the rear wheel 09 is provided with a motor 14 which is in driving connection with the rear wheel 09; a support rod is arranged between the sliding rods 12, and two ends of the first rear axle tension spring 01 are respectively connected with the support rod and the idle gear 02; two ends of the second rear axle tension spring 06 are respectively connected with the quick-release handle 07 and the overload sheet 03, and the overload sheet 03 is connected with the chute gear 04; and a hook groove connected with the hook 05 is arranged on the rear frame 08.
The rear wheel quick assembly disassembly structure theory of operation in this embodiment: in the disassembly process, when the quick disassembly handle is pulled towards the direction of the rear wheel assembly, the chute gear moves along with the rear wheel assembly, when the chute gear moves backwards, the hook is forced to rotate to leave the rear hook groove, the rear wheel assembly is separated from the wheelchair frame, and meanwhile, the hook is forced to rotate upwards to be unhooked from the rear frame, so that the rear wheel assembly can be easily taken out; when the chute gear moves backwards, the idle gear can be driven to rotate clockwise, so that the rotating piece is driven to rotate, the rotating piece drives the pushing piece to rotate and move downwards, so that the sliding rod is pushed to move downwards until the sliding rod supports the ground, at the moment, the wheelchair frame cannot be fallen down when the rear wheel assembly is taken off from the wheelchair, the height of the wheelchair cannot be changed, and the sliding rod can well support the ground under the action of the first rear axle tension spring and the second rear axle tension spring; otherwise, the wheelchair frame can be in the same plane with the rear wheel assembly due to the support of the sliding rod, the rear frame of the rear wheel assembly is aligned with the square tube of the wheelchair frame, the rear wheel assembly is pushed towards the wheelchair frame, the rear wheel assembly is moved until the sliding groove gear is propped against the sliding groove gear, the sliding groove gear is forced to move towards the wheelchair frame, the hook is driven to rotate, the hook is forced to be buckled in the hook groove, the sliding groove gear can drive the idle hanging gear to rotate when moving towards the frame direction, the idle hanging gear drives the rotating piece to rotate, the pushing piece is forced to move upwards, and the sliding rod is retracted into the wheelchair frame.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A rear wheel quick dismounting structure for a wheelchair is characterized by comprising a structure main body, wherein the structure main body comprises a wheelchair frame, a rear wheel assembly detachably connected with the wheelchair frame and a quick dismounting handle arranged between the wheelchair frame and the wheelchair frame;
an idle gear and a hook are arranged on the inner side of the wheelchair frame, a chute gear is arranged between the hook and the wheelchair frame, and the chute gear is meshed with the idle gear;
a first rear axle tension spring is arranged between the wheelchair frame and the idle gear;
a slide passing plate is arranged between the wheelchair frame and the chute gear, and a second rear axle tension spring is arranged between the slide passing plate and the chute gear;
a sliding rod vertically connected with the wheelchair frame is arranged on the outer side of the wheelchair frame, and a rotating sheet and a pushing sheet which are mutually connected are arranged on the outer side of the sliding rod;
the quick release handle is arranged between the idle gear and connected with the sliding chute gear;
the rear wheel assembly comprises a rear frame, and rear wheels are symmetrically arranged on two sides of the rear frame.
2. The rear wheel quick-release structure for a wheelchair, as claimed in claim 1, wherein: the structure main body comprises two groups of wheelchair frames which are symmetrically arranged, the two groups of wheelchair frames are respectively composed of a front wheel connecting frame and a rear wheel connecting frame component, and a damping mechanism is arranged between the front wheel connecting frame and the rear wheel connecting frame.
3. The rear wheel quick-release structure for a wheelchair, as claimed in claim 1, wherein: the rotating piece is positioned above the pushing piece and is in rotating connection with the pushing piece.
4. The rear wheel quick-release structure for a wheelchair, as claimed in claim 1, wherein: and anti-tilting wheels are arranged on the outer side of the rear frame and are positioned between the two groups of rear wheels.
5. The rear wheel quick-release structure for a wheelchair, as claimed in claim 1, wherein: and a motor in driving connection with the rear wheel is arranged on the inner side of the rear wheel.
6. The rear wheel quick-release structure for a wheelchair, as claimed in claim 1, wherein: a support rod is arranged between the sliding rods, and two ends of the first rear axle tension spring are respectively connected with the support rod and the idle gear.
7. The rear wheel quick-release structure for a wheelchair, as claimed in claim 1, wherein: and two ends of the second rear axle tension spring are respectively connected with the quick-release handle and the overload sheet, and the overload sheet is connected with the sliding chute gear.
8. The rear wheel quick-release structure for a wheelchair, as claimed in claim 1, wherein: and the rear frame is provided with a hook groove connected with the hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022272251.9U CN213501639U (en) | 2020-10-13 | 2020-10-13 | Rear wheel quick dismounting structure for wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022272251.9U CN213501639U (en) | 2020-10-13 | 2020-10-13 | Rear wheel quick dismounting structure for wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213501639U true CN213501639U (en) | 2021-06-22 |
Family
ID=76397278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022272251.9U Active CN213501639U (en) | 2020-10-13 | 2020-10-13 | Rear wheel quick dismounting structure for wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213501639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114224628A (en) * | 2021-12-24 | 2022-03-25 | 深圳市优必选科技股份有限公司 | Frames and Wheelchairs |
-
2020
- 2020-10-13 CN CN202022272251.9U patent/CN213501639U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114224628A (en) * | 2021-12-24 | 2022-03-25 | 深圳市优必选科技股份有限公司 | Frames and Wheelchairs |
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