CN210019990U - Detachable structure of wheelchair bottom front wheel easy to repair - Google Patents
Detachable structure of wheelchair bottom front wheel easy to repair Download PDFInfo
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- CN210019990U CN210019990U CN201920177155.0U CN201920177155U CN210019990U CN 210019990 U CN210019990 U CN 210019990U CN 201920177155 U CN201920177155 U CN 201920177155U CN 210019990 U CN210019990 U CN 210019990U
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- front wheel
- frame
- mounting seat
- mounting
- supporting rod
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Abstract
A detachable structure of a front wheel at the bottom of a wheelchair, which is easy to repair, comprises a frame, a front wheel, a mounting seat, a fixing sheet, a first flat cushion, a second flat cushion, a mounting seat elastic cushion, a fastening bolt, a fastening nut, a fixing sheet elastic cushion and a cover-shaped locknut; the bottom end of the frame is provided with a frame connecting hole; the mounting seat comprises a mounting cylinder and a mounting sheet, and the fastening bolt sequentially penetrates through the first flat pad, the mounting seat hole, the frame connecting hole, the second flat pad and the mounting seat elastic pad and is matched with the fastening nut to realize the fixed connection of the mounting seat and the frame; the front wheel supporting rod penetrates through the fixing sheet hole, the mounting seat hole and the fixing sheet spring pad in sequence, and is matched with the inner wall of the cover-shaped check nut through the external threads of the supporting rod, so that the front wheel supporting rod is fixedly connected with the cover-shaped check nut. The utility model can be used for independently disassembling the front wheel, and is convenient to maintain; the structure is simple, and the wheel is convenient to disassemble and assemble; the connecting strength is high, the structure is stable in operation, and the safety performance is strong.
Description
Technical Field
The utility model relates to a wheelchair field, especially a detachable construction that wheelchair bottom front wheel was easily repaired.
Background
The wheelchair is a chair provided with wheels, is an important moving tool for the rehabilitation, turnover transportation, treatment and outgoing activities of wounded, patients and disabled at home, not only meets the requirements of physically disabled people and mobility-handicapped people for riding instead of walking, but also is more important to facilitate the family members to move and take care of the patients, so that the patients can do physical exercises and participate in social activities by means of the wheelchair. The common wheelchair generally comprises nine parts, namely a foldable frame of the wheelchair, front and rear wheels, left and right pedals, left and right detachable armrests, a handle brake device, a seat, a backrest bag capable of storing sheets, a bedpan and a urine receiving bag hook.
The front wheel and the rear wheel comprise large wheels and small wheels, the large wheels are arranged at the rear end of the bottom of the wheelchair and called rear wheels, a paralytic patient can sit on the wheelchair to push the rear wheels to drive the wheelchair to run, the driving wheel effect is achieved, meanwhile, the rear wheels are in a large-diameter wheel hub form, the bumping degree of the wheelchair in the running process is reduced, and the stability of the wheelchair is guaranteed. The front wheels turn in real time through the matching of the rear wheels and the front wheels in the running process of the wheelchair, so that the purpose of advancing and turning of the wheelchair can be achieved, and the front wheels play a role in guiding in the running process of the wheelchair. The front wheel adopts minor diameter wheel hub to travel, makes things convenient for the front wheel to turn to.
In the prior wheelchair technology, a large wheel and a small wheel are usually fixed with a frame, the wheels are usually fixed with the frame through a connecting part by welding, when the wheels are used for a long time, the wheels are easy to wear and damage, the frame and the wheels cannot be dismounted, replaced and maintained, and the safety performance and the service performance of the wheelchair cannot be guaranteed. The utility model discloses a utility model patent of patent number "CN 200920062738.5 helps capable wheelchair" has disclosed among the prior art, and it has related to the transformation to the wheelchair front wheel in the patent scheme, has carried out the demountable design, but current design has following technical defect: (1) the front wheel and the frame body adopt a splicing connection mode, the structural strength is lower, the wheels are easy to fall off from the wheelchair, the stability of the wheelchair in operation and use is poor, and the safety performance is low. (2) The mounting position of the wheel is fixed, the wheel can only be inserted into the upright column for mounting, the wheel cannot be mounted on the transverse support, and the mounting mode is inflexible.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem existing in the prior art, the utility model discloses a detachable construction that wheelchair bottom front wheel was easily repaired, its concrete technical scheme as follows: a detachable structure of a front wheel at the bottom of a wheelchair, which is easy to repair, comprises a frame, a front wheel, a mounting seat, a fixing sheet, a first flat cushion, a second flat cushion, a mounting seat elastic cushion, a fastening bolt, a fastening nut, a fixing sheet elastic cushion and a cover-shaped locknut; the bottom end of the frame is of a cuboid cross rod-shaped structure, and a frame connecting hole is formed in the bottom end of the frame; the top end of the front wheel is of a rod-shaped structure to form a front wheel supporting rod, and supporting rod external threads are circumferentially arranged at the top end of the front wheel supporting rod; the mounting seat comprises a mounting cylinder and a mounting sheet, wherein the mounting cylinder is cylindrical in shape and is of a hollow structure, and a mounting seat hole is formed; the mounting pieces are arranged on two sides of the mounting cylinder, each mounting piece is fixedly connected with two sides of the mounting cylinder and is of an integrated structure, and one side of the mounting seat is attached to one side of the frame; the fixing piece is in a Contraband-shaped structure, fixing piece holes are formed in the bottom end and the top end of the fixing piece, and two ends of the fixing piece are sequentially clamped on the outer sides of the frame and the mounting barrel; the first flat pad is arranged on one side of the mounting piece, the second flat pad is arranged on one side of the frame, the mounting seat elastic pad is arranged on one side of the second flat pad, and the fastening bolt sequentially penetrates through the first flat pad, the mounting seat hole, the frame connecting hole, the second flat pad and the mounting seat elastic pad and is matched with a fastening nut to realize the fixed connection of the mounting seat and the frame; the inner wall of the cover-shaped anti-loose nut is in a threaded shape, the front wheel supporting rod sequentially penetrates through the fixing piece hole, the mounting seat hole and the fixing piece elastic pad, and is matched with the inner wall of the cover-shaped anti-loose nut through the external threads of the supporting rod to realize that the front wheel supporting rod is fixedly connected with the cover-shaped anti-loose nut.
Furthermore, the number of the frame connecting holes is two.
Furthermore, the positions of the two mounting piece holes are matched with the positions of the two frame connecting holes.
Furthermore, the inner diameter of the mounting seat hole is matched with the outer diameter of the front wheel supporting rod.
Furthermore, the length of the mounting cylinder is adapted to the thickness of the cross rod at the bottom end of the frame.
Furthermore, the inner diameter of the hole of the fixing sheet is matched with the outer diameter of the front wheel supporting rod.
The structure principle of the utility model is that:
the utility model has the advantages that the fastening bolt sequentially penetrates through the first flat pad, the mounting seat hole, the frame connecting hole, the second flat pad and the mounting seat spring pad, and the mounting seat is fixedly connected with the frame by locking the fastening nut; then the front wheel supporting rod sequentially penetrates through the fixing sheet hole, the mounting seat hole and the fixing sheet spring mat and is locked by matching the internal thread of the cover-shaped locknut with the external thread of the supporting rod, and the front wheel supporting rod is fixedly connected with the cover-shaped locknut; the mounting seat, the fixing sheet and the frame form an integrated structure, and the wheel is fixedly connected with the frame.
The utility model has the advantages that:
(1) the utility model improves the structural form of the front wheel of the wheelchair, changes the traditional fixed connection form of welding and riveting between the front wheel and the frame into the connection form of adopting the fastening bolt between the wheel and the frame, realizes the detachable connection between the front wheel and the frame, and can detach the front wheel and the frame arbitrarily; when the wheel is worn or the wheel assembly is damaged, the front wheel can be locally disassembled and replaced, the wheelchair body is not required to be wholly replaced, the structure of the wheelchair body is not required to be damaged, the structural integrity of the wheelchair body can be guaranteed, the structural strength of the wheelchair body is maintained, the purpose of replacing local parts of the wheel without damaging the overall structure is achieved, the replacement and maintenance of the wheel and the maintenance of the wheelchair are facilitated, and the maintenance cost is reduced.
(2) The utility model discloses to wheel detachable construction, the pertinence has designed the mount pad, the stationary blade part, through set up the trompil on the frame, the cooperation stationary blade encircles the mount pad fixedly and sets up in frame one side, and with front wheel assembly and mount pad fixed connection, front wheel and frame fixed connection have been reached, this design simple structure, it is convenient to dismantle, load, through horizontal with the frame to the wheel, fore-and-aft fixed connection, form a unified whole with wheel and frame, the wheel is high with the joint strength of frame, stable when the structure moves, the security performance is strong. Meanwhile, the first flat pad and the second flat pad are additionally arranged in the detachable structure, so that the contact area of the fastening bolt with the mounting seat and the fixing sheet is increased, and the transverse locking capability of the wheel and the frame is improved; the mounting seat elastic cushion and the fixing piece elastic cushion are additionally arranged in the detachable structure, so that shear stress generated by bumping in the driving process of the wheel can be absorbed, loosening of parts in the detachable structure is prevented, the anti-bumping capability of the wheel and the frame is improved, and the structural strength and the structural stability are further improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the mounting structure of the detachable structure of the present invention.
List of reference numerals: the wheel frame comprises a wheel frame 1, a wheel frame connecting hole 1-1, a front wheel 2, a front wheel supporting rod 2-1, supporting rod external threads 2-11, a mounting seat 3, a mounting cylinder 3-1, a mounting seat hole 3-11, a mounting sheet 3-2, a mounting sheet hole 3-21, a fixing sheet 4, a fixing sheet hole 4-1, a first flat pad 5, a second flat pad 6, a mounting seat elastic pad 7, a fastening bolt 8, a fastening nut 9, a fixing sheet elastic pad 10 and a cover-shaped anti-loose nut 11.
Detailed Description
For making the technical scheme of the utility model clear more clearly and definitely, it is right to combine the drawing below the utility model discloses further describe, any is right the utility model discloses technical scheme's technical characteristic carries out the scheme that equivalent replacement and conventional reasoning reachs and all falls into the utility model discloses protection scope. The fixed connection, the fixed arrangement and the fixed structure mentioned in the embodiment are all known technologies known to those skilled in the art, such as welding, screw connection, bolt-nut connection, riveting and the like. The utility model discloses in the product that the front wheel adopted china utility model to disclose a patent number is "CN 201120094541.7 a wheelchair truckle", its structural principle is the well-known technique of worker that this field personnel are familiar with the utility model discloses in do not give unnecessary details.
The detachable structure comprises a frame, a front wheel, a mounting seat, a fixing sheet, a first flat pad, a second flat pad, a mounting seat elastic pad, a fastening bolt, a fastening nut, a fixing sheet elastic pad and a cover-shaped locknut; the bottom end of the frame is of a cuboid cross rod-shaped structure, and a frame connecting hole is formed in the bottom end of the frame; the top end of the front wheel is of a rod-shaped structure to form a front wheel supporting rod, and supporting rod external threads are circumferentially arranged at the top end of the front wheel supporting rod; the mounting seat comprises a mounting cylinder and a mounting sheet, wherein the mounting cylinder is cylindrical in shape and is of a hollow structure, and a mounting seat hole is formed; the mounting pieces are arranged on two sides of the mounting cylinder, each mounting piece is fixedly connected with two sides of the mounting cylinder and is of an integrated structure, and one side of the mounting seat is attached to one side of the frame; the fixing piece is in a Contraband-shaped structure, fixing piece holes are formed in the bottom end and the top end of the fixing piece, and two ends of the fixing piece are sequentially clamped on the outer sides of the frame and the mounting barrel; the first flat pad is arranged on one side of the mounting piece, the second flat pad is arranged on one side of the frame, the mounting seat elastic pad is arranged on one side of the second flat pad, and the fastening bolt sequentially penetrates through the first flat pad, the mounting seat hole, the frame connecting hole, the second flat pad and the mounting seat elastic pad and is matched with a fastening nut to realize the fixed connection of the mounting seat and the frame; the inner wall of the cover-shaped anti-loose nut is in a threaded shape, the front wheel supporting rod sequentially penetrates through the fixing piece hole, the mounting seat hole and the fixing piece elastic pad, and is matched with the inner wall of the cover-shaped anti-loose nut through the external threads of the supporting rod to realize that the front wheel supporting rod is fixedly connected with the cover-shaped anti-loose nut.
Furthermore, the number of the frame connecting holes is two.
Furthermore, the positions of the two mounting piece holes are matched with the positions of the two frame connecting holes.
Furthermore, the inner diameter of the mounting seat hole is matched with the outer diameter of the front wheel supporting rod.
Furthermore, the length of the mounting cylinder is adapted to the thickness of the cross rod at the bottom end of the frame.
Furthermore, the inner diameter of the hole of the fixing sheet is matched with the outer diameter of the front wheel supporting rod.
The structure principle of the utility model is that:
the utility model has the advantages that the fastening bolt sequentially penetrates through the first flat pad, the mounting seat hole, the frame connecting hole, the second flat pad and the mounting seat spring pad, and the mounting seat is fixedly connected with the frame by locking the fastening nut; then the front wheel supporting rod sequentially penetrates through the fixing sheet hole, the mounting seat hole and the fixing sheet spring mat and is locked by matching the internal thread of the cover-shaped locknut with the external thread of the supporting rod, and the front wheel supporting rod is fixedly connected with the cover-shaped locknut; the mounting seat, the fixing sheet and the frame form an integrated structure, and the wheel is fixedly connected with the frame.
The utility model has the advantages that:
(1) the utility model improves the structural form of the front wheel of the wheelchair, changes the traditional fixed connection form of welding and riveting between the front wheel and the frame into the connection form of adopting the fastening bolt between the wheel and the frame, realizes the detachable connection between the front wheel and the frame, and can detach the front wheel and the frame arbitrarily; when the wheel is worn or the wheel assembly is damaged, the front wheel can be locally disassembled and replaced, the wheelchair body is not required to be wholly replaced, the structure of the wheelchair body is not required to be damaged, the structural integrity of the wheelchair body can be guaranteed, the structural strength of the wheelchair body is maintained, the purpose of replacing local parts of the wheel without damaging the overall structure is achieved, the replacement and maintenance of the wheel and the maintenance of the wheelchair are facilitated, and the maintenance cost is reduced.
(2) The utility model discloses to wheel detachable construction, the pertinence has designed the mount pad, the stationary blade part, through set up the trompil on the frame, the cooperation stationary blade encircles the mount pad fixedly and sets up in frame one side, and with front wheel assembly and mount pad fixed connection, front wheel and frame fixed connection have been reached, this design simple structure, it is convenient to dismantle, load, through horizontal with the frame to the wheel, fore-and-aft fixed connection, form a unified whole with wheel and frame, the wheel is high with the joint strength of frame, stable when the structure moves, the security performance is strong. Meanwhile, the first flat pad and the second flat pad are additionally arranged in the detachable structure, so that the contact area of the fastening bolt with the mounting seat and the fixing sheet is increased, and the transverse locking capability of the wheel and the frame is improved; the mounting seat elastic cushion and the fixing piece elastic cushion are additionally arranged in the detachable structure, so that shear stress generated by bumping in the driving process of the wheel can be absorbed, loosening of parts in the detachable structure is prevented, the anti-bumping capability of the wheel and the frame is improved, and the structural strength and the structural stability are further improved.
Claims (6)
1. A detachable structure of a front wheel at the bottom of a wheelchair, which is easy to repair, is characterized by comprising a frame, a front wheel, a mounting seat, a fixing sheet, a first flat cushion, a second flat cushion, a mounting seat elastic cushion, a fastening bolt, a fastening nut, a fixing sheet elastic cushion and a cover-shaped locknut; the bottom end of the frame is of a cuboid cross rod-shaped structure, and a frame connecting hole is formed in the bottom end of the frame; the top end of the front wheel is of a rod-shaped structure to form a front wheel supporting rod, and supporting rod external threads are circumferentially arranged at the top end of the front wheel supporting rod; the mounting seat comprises a mounting cylinder and a mounting sheet, wherein the mounting cylinder is cylindrical in shape and is of a hollow structure, and a mounting seat hole is formed; the mounting pieces are arranged on two sides of the mounting cylinder, each mounting piece is fixedly connected with two sides of the mounting cylinder and is of an integrated structure, and one side of the mounting seat is attached to one side of the frame; the fixing piece is in a Contraband-shaped structure, fixing piece holes are formed in the bottom end and the top end of the fixing piece, and two ends of the fixing piece are sequentially clamped on the outer sides of the frame and the mounting barrel; the first flat pad is arranged on one side of the mounting piece, the second flat pad is arranged on one side of the frame, the mounting seat elastic pad is arranged on one side of the second flat pad, and the fastening bolt sequentially penetrates through the first flat pad, the mounting seat hole, the frame connecting hole, the second flat pad and the mounting seat elastic pad and is matched with a fastening nut to realize the fixed connection of the mounting seat and the frame; the inner wall of the cover-shaped anti-loose nut is in a threaded shape, the front wheel supporting rod sequentially penetrates through the fixing piece hole, the mounting seat hole and the fixing piece elastic pad, and is matched with the inner wall of the cover-shaped anti-loose nut through the external threads of the supporting rod to realize that the front wheel supporting rod is fixedly connected with the cover-shaped anti-loose nut.
2. A detachable structure of a wheelchair bottom front wheel easy to repair as claimed in claim 1, wherein the number of the frame attaching holes is two.
3. A detachable structure of a wheelchair bottom front wheel easy to repair as claimed in claim 1, wherein the positions of two mounting holes are adapted to the positions of two frame connecting holes.
4. A detachable wheelchair bottom front wheel easy-to-repair structure as claimed in claim 1, wherein the inside diameter of the mounting hole is adapted to the outside diameter of the front wheel supporting rod.
5. A detachable structure of a wheelchair bottom front wheel easy to repair as claimed in claim 1, wherein the length of the mounting tube is adapted to the thickness of the bottom cross bar of the frame.
6. A detachable structure of a wheelchair bottom front wheel easy to repair as claimed in claim 1, wherein the hole inner diameter of the fixing piece is adapted to the outer diameter of the front wheel supporting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920177155.0U CN210019990U (en) | 2019-01-31 | 2019-01-31 | Detachable structure of wheelchair bottom front wheel easy to repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920177155.0U CN210019990U (en) | 2019-01-31 | 2019-01-31 | Detachable structure of wheelchair bottom front wheel easy to repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210019990U true CN210019990U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920177155.0U Active CN210019990U (en) | 2019-01-31 | 2019-01-31 | Detachable structure of wheelchair bottom front wheel easy to repair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210019990U (en) |
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2019
- 2019-01-31 CN CN201920177155.0U patent/CN210019990U/en active Active
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