CN214104936U

CN214104936U - Simple opening and closing structure for supporting wheelchair

Info

Publication number: CN214104936U
Application number: CN202022780021.3U
Authority: CN
Inventors: 贺金明
Original assignee: Shanghai Hubang Intelligent Rehabilitation Equipment Co ltd
Current assignee: Shanghai Hubang Intelligent Rehabilitation Equipment Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-09-03
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a simple wheelchair supporting opening and closing structure, which comprises a wheelchair seat cushion framework hinged plate, a buckle plate, a spring, a limit pin and a stop pin, wherein when the wheelchair seat cushion framework is in a use state, the stop pin is hooked by a hook on the buckle plate under the action of the spring, so that the wheelchair seat cushion framework and the wheelchair supporting framework are locked; during unlocking, the unlocking operation part is lifted upwards, and one end of the buckle plate, which is provided with a hook, is driven to move downwards around the second pivot, so that the hook on the buckle plate is separated from the stop pin, and the wheelchair seat cushion framework and the wheelchair supporting framework are unlocked. The utility model discloses a simple and easy support wheelchair opens and receives the structure and can realize the folding of the relative wheelchair seatpad of wheelchair supporting framework, makes things convenient for opening and receiving of wheelchair to have simple structure, advantage in the aspect of the use.

Description

Simple opening and closing structure for supporting wheelchair

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a simple and easy supporting wheelchair opens and receives receipts and close structure.

Background

Wheelchairs are known and generally comprise a frame fitted with a seat and four wheels. The wheels typically include a pair of caster wheels mounted to the front of the frame and a pair of drive wheels mounted to the rear of the frame. The drive wheels are sized to be grasped by the wheelchair user for rotation and manipulation. This known wheelchair frame is made foldable about axes substantially parallel to the longitudinal axis of the wheelchair.

Chinese patent CN1049783A discloses a foldable wheelchair frame, particularly a wheelchair that can be folded about axes transverse to its longitudinal axis. The wheelchair frame includes a back portion; a bottom member having a rear end hinged to a lower end of the backrest portion; a seat part whose rear end is hinged with the middle of the backrest part; a front member having an upper end hinged to the seat portion and a lower end detachably connected to a front end of the bottom member. The hinges are all pivotal about an axis perpendicular to the longitudinal axis of the wheelchair frame. The wheelchair frame portions are preferably constructed of tubular synthetic plastic parts joined by tubular plastic joints. The frame is preferably further provided with a handrail, a brake mechanism, a cartridge mounting mechanism and a mechanism for conveniently detaching the wheels from the upper side of the frame. The seat cushion in the wheelchair is inconvenient to fold relative to the wheelchair frame.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the simple wheelchair supporting structure is provided for the inconvenient problem of folding between the wheelchair cushion and the wheelchair supporting framework, so that the wheelchair can be folded more conveniently.

The utility model discloses the technical problem that will solve can realize through following technical scheme:

the utility model provides a simple and easy support wheelchair opens and receives structure, its characterized in that includes:

the lower end of the wheelchair cushion framework hinged plate is fixedly connected with the wheelchair supporting framework, and the upper end of the wheelchair cushion framework hinged plate is hinged with the proper position of the wheelchair cushion framework through a first pivot;

the buckle plate is hinged to the wheelchair seat cushion framework through a second pivot, and a limiting waist-shaped groove, a hook and an unlocking operation part are formed in the buckle plate;

one end of the spring is hooked on the first pivot, and the other end of the spring acts on a proper position of the buckle plate;

the limiting pin is fixed on the wheelchair seat cushion framework and inserted into the limiting waist-shaped groove;

the baffle pin is fixed at a proper position of a hinged plate of the wheelchair seat cushion framework, and when the wheelchair seat cushion framework is in a use state, under the action of the spring, the baffle pin is hooked by a hook on the buckle plate to lock the wheelchair seat cushion framework and the wheelchair supporting framework; during unlocking, the unlocking operation part is lifted upwards, and one end of the buckle plate, which is provided with a hook, is driven to move downwards around the second pivot, so that the hook on the buckle plate is separated from the stop pin, and the wheelchair seat cushion framework and the wheelchair supporting framework are unlocked.

In a preferred embodiment of the utility model, the stop pin is fixed at the lower part of one side of the hinged plate of the wheelchair seat cushion framework, which faces the wheelchair backrest; the hook is arranged at one end of the buckle plate facing the wheelchair backrest, and the unlocking part is positioned at one end of the buckle plate far away from the wheelchair backrest; the second pivot is positioned at one end of the buckle plate facing the wheelchair seat cushion framework, and the hook and the unlocking operation part are arranged at two sides of the second pivot; the limiting kidney-shaped groove is arranged at a position close to the second pivot.

In a preferred embodiment of the present invention, the position of the limit pin on the wheelchair seat cushion frame is further away from the wheelchair backrest than the position of the second pivot on the wheelchair seat cushion frame, and the position of the second pivot on the wheelchair seat cushion frame is further away from the wheelchair backrest than the position of the first pivot on the wheelchair seat cushion frame.

In a preferred embodiment of the present invention, a pull rod is fixed to the unlocking unit, and the unlocking operation unit is lifted up by the pull rod.

In a preferred embodiment of the present invention, a spring hanging pin is disposed on the buckle plate, and the spring hanging pin is located between the hook and the unlocking operation portion; the other end of the spring is hung on the spring hanging pin.

Due to the adoption of the technical scheme, the utility model discloses a simple and easy support wheelchair opens and receives the structure of closing and can realize the folding of the relative wheelchair seatpad of wheelchair supporting framework, makes things convenient for opening and receiving of wheelchair to have simple structure, the advantage in the aspect of the use.

Drawings

Fig. 1 is an assembly view of the structure for opening and closing the simply supported wheelchair of the present invention.

Fig. 2 is an exploded view of the structure of the simple wheelchair support of the present invention for unfolding and folding.

Fig. 3 is a schematic view of the simple wheelchair supporting structure in a locked state.

Fig. 4 is a schematic view of the simple wheelchair supporting structure in an unlocked state.

Fig. 5 is a schematic view of the simple wheelchair supporting structure in a folded state.

Fig. 6 is a perspective view of a wheelchair with a structure for simply supporting the wheelchair to open and close.

Fig. 7 is a schematic view of the wheelchair with the structure for simply supporting the wheelchair to open and close in the use state.

Fig. 8 is a schematic view of the wheelchair in an unlocked state with the structure for simply supporting the wheelchair to open and close.

Figure 9 is a front view of the wheelchair in a folded state with the structure for simply supporting the wheelchair for unfolding and folding.

Fig. 10 is a perspective view of the wheelchair with the structure for simply supporting the wheelchair to open and close according to the present invention in a folded state.

Detailed Description

The invention is further described below with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 and 2, a simple wheelchair supporting structure for opening and closing a wheelchair is shown in a wheelchair, which includes a wheelchair seat frame 200 and a wheelchair supporting frame 100, and a seat (not shown) laid on the wheelchair seat frame 200.

The simple wheelchair supporting structure 300 comprises two sets, and each set of the simple wheelchair supporting structure 300 comprises a wheelchair seat cushion framework hinged plate 310, a buckle plate 320, a spring 330, a limit pin 340 and a stop pin 350.

The lower ends of the hinge plates 310 of the wheelchair seat frame are fixedly connected to the wheelchair support frame 100, such as by welding or fasteners. The upper end of the hinged plate 310 of the wheelchair seat cushion frame is hinged with the proper position of the wheelchair seat cushion frame 200 through a first pivot 360, and the first pivot 360 is fixedly arranged by a nut 361. A stop pin 350 is fixed to a suitable position of the wheelchair seat frame hinge plate 310, and the stop pin 350 is fixed to a lower portion of the wheelchair seat frame hinge plate 310 on the side facing the wheelchair back 400.

The buckle plate 320 is hinged to the wheelchair seat cushion frame 200 by a second pivot 370, and the second pivot 370 is also fixed by a nut 371. The second pivot axis 370 is located on the wheelchair seat frame 200 further away from the wheelchair back 400 than the first pivot axis 360 is located on the wheelchair seat frame 200.

The buckle 320 is provided with a limit kidney-shaped groove 321, a hook 322 and an unlocking operation part 323. The hook 322 is provided on an end 324 of the gusset plate 320 facing the wheelchair back 400 (see fig. 6 to 10), and the unlocking portion 323 is located on an end 325 of the gusset plate 320 remote from the wheelchair back 400; the second pivot 370 is located on one end 326 of the buckle plate 320 facing the wheelchair seat cushion frame 200, and the hook 322 and the unlocking operation part 323 are partially arranged on both sides of the second pivot 370; the limit kidney slot 321 is disposed near the second pivot 370.

A limit pin 340 is fixed on the wheelchair seat cushion framework 200, and the limit pin 340 is inserted into the limit kidney-shaped groove 321. The restraint pin 340 is located further away from the wheelchair back 400 on the wheelchair seat frame 200 than the second pivot 370 is located on the wheelchair seat frame 200. Further, a spring hook 327 is provided on the striker 320, and the spring hook 327 is located between the hook 322 and the unlocking operation portion 323 on the striker 320.

One end of the spring 330 is hooked on the first pivot 360, and the other end of the spring 330 is hooked on the spring hook pin 327.

A pull rod 380 is fixed on the unlocking operation part 323 of the pinch plates 320 of the two sets of the simple support wheelchair opening and closing structures 300, and the pinch plates 320 in the two sets of the simple support wheelchair opening and closing structures 300 can be synchronously operated to move by operating the pull rod 380.

Referring to fig. 3, 6 and 7, when the wheelchair seat cushion frame 200 is in use, the stop pin 350 is hooked by the hook 322 of the buckle plate 320 under the action of the spring 330, so as to lock the wheelchair seat cushion frame 200 and the wheelchair support frame 100.

Referring to fig. 4 and 8, when unlocking, the pull rod 380 is lifted, and the unlocking operation parts 323 of the two sets of buckling plates 320 of the simple wheelchair supporting and unfolding and folding structures 300 are lifted by the pull rod 380, so that one ends 324 with hooks 322 of the buckling plates 320 of the two sets of simple wheelchair supporting and unfolding and folding structures 300 are driven to move downwards around the second pivot 370, the hooks 322 on the buckling plates 320 are separated from the stop pins 350, and the unlocking between the wheelchair seat cushion framework 200 and the wheelchair supporting framework 100 is realized.

Referring to fig. 5, 9 and 10, after the wheelchair seat cushion frame 200 and the wheelchair support frame 100 are unlocked, the wheelchair seat cushion frame 200 can be lifted upwards for folding, and when the wheelchair seat cushion frame 200 is lifted upwards for folding, the wheelchair support frame 100 is driven by the wheelchair seat cushion frame hinge plate 310 to also fold along with the wheelchair seat cushion frame 200.

Claims

1. The utility model provides a simple and easy support wheelchair opens and receives structure, its characterized in that includes:

2. The structure as claimed in claim 1, wherein the stop pin is fixed to a lower portion of the side of the hinge plate of the seat cushion frame facing the backrest of the wheelchair; the hook is arranged at one end of the buckle plate facing the wheelchair backrest, and the unlocking part is positioned at one end of the buckle plate far away from the wheelchair backrest; the second pivot is positioned at one end of the buckle plate facing the wheelchair seat cushion framework, and the hook and the unlocking operation part are arranged at two sides of the second pivot; the limiting kidney-shaped groove is arranged at a position close to the second pivot.

3. The opening and closing structure of claim 2, wherein the position of the limit pin on the wheelchair seat frame is further away from the wheelchair back than the position of the second pivot on the wheelchair seat frame, and the position of the second pivot on the wheelchair seat frame is further away from the wheelchair back than the position of the first pivot on the wheelchair seat frame.

4. A structure as claimed in any one of claims 2 to 3, wherein a pull rod is fixed to the unlocking part, and the unlocking operation part is lifted by the pull rod.

5. The unfolding and folding structure of a simply supported wheelchair as claimed in claim 4, wherein a spring pin is provided on the buckle plate, and the spring pin is located on the buckle plate at a position between the hook and the unlocking operation part; the other end of the spring is hung on the spring hanging pin.