CN216168351U

CN216168351U - Wheel chair

Info

Publication number: CN216168351U
Application number: CN202120428057.7U
Authority: CN
Inventors: 汪凯
Original assignee: Guangzhou Xicoo Medical Technology Co ltd; Guangzhou Shiyuan Electronics Thecnology Co Ltd
Current assignee: Guangzhou Xicoo Medical Technology Co ltd; Guangzhou Shiyuan Electronics Thecnology Co Ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2022-04-05
Anticipated expiration: 2031-02-26

Abstract

The utility model discloses a wheelchair, which comprises a backrest and a cushion which are hinged, wherein an angle adjusting device is arranged between the backrest and the cushion and comprises an adjusting handle, an adjusting wheel and a first locking piece, one of the backrest and the cushion is connected with the adjusting wheel, the other of the backrest and the cushion is connected with the first locking piece, the adjusting handle controls the first locking piece to selectively abut against the adjusting wheel, when the first locking piece abuts against the adjusting wheel, the angle of the backrest and the cushion is locked, and when the first locking piece is separated from the adjusting wheel, the angle of the backrest and the cushion can be adjusted. By arranging the angle adjusting device, the angle between the cushion and the backrest can be adjusted, and the riding comfort of the wheelchair is improved; the angle modulation function not only can be realized to regulating wheel, adjustment handle and first locking piece three's cooperation, has still simplified the inside regulation structure of wheelchair, and the cooperation of regulating wheel and first locking piece can make the back fold directly over the cushion, and the convenience is accomodate the wheelchair.

Description

Wheel chair

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a storage type wheelchair with an adjustable backrest angle.

Background

The wheelchair is an important mobile tool for home rehabilitation, turnover transportation, treatment and outgoing activities of wounded persons, patients and disabled persons, not only meets the requirements of physical disabilities and mobility-handicapped persons for riding instead of walking, but also facilitates the family members to move and care for the patients, so that the patients can do physical exercises and participate in social activities by means of the wheelchair. Part of wheelchairs can not be folded and are inconvenient to store, and at the moment, the wheelchairs can cause larger space waste, for example, when people take the automobile with other people, the wheel chairs which can not be stored occupy larger space in the automobile, so that inconvenience is brought to users; the folding of some wheelchairs is supported, but the internal structure is more complicated, which is not beneficial to the maintenance of the wheelchairs in the using process.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to: the utility model provides a wheelchair, its simple structure not only can carry out back angle modulation, still convenient storage.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a wheelchair, includes articulated back and cushion, the back with set up angle adjusting device between the cushion and connect, angle adjusting device includes adjustment handle, regulating wheel and first locking piece, the back with one in the both of cushion with the regulating wheel is connected, another with first locking piece is connected, adjustment handle control first locking piece selectivity supports tightly the regulating wheel, first locking piece with when the regulating wheel supports tightly, the back with the angle locking of cushion, first locking piece with during the regulating wheel separation, the back with the angle of cushion is adjustable.

The utility model has the beneficial effects that: by arranging the angle adjusting device, the angle between the cushion and the backrest can be adjusted, and the riding comfort of the wheelchair is improved; the angle modulation function not only can be realized to regulating wheel, adjustment handle and first locking piece three's cooperation, has still simplified the inside regulation structure of wheelchair, and the cooperation of regulating wheel and first locking piece can make the back fold directly over the cushion, and the convenience is accomodate the wheelchair.

Drawings

The utility model is explained in more detail below with reference to the figures and examples.

Fig. 1 is a schematic view of an unfolded state according to an embodiment of the present invention.

Figure 2 is a schematic view of the wheelchair showing the first locking member and the adjustment wheel separated according to the embodiment of the utility model.

Fig. 3 is a schematic view of the wheelchair in another perspective view in accordance with the embodiment of the present invention.

Fig. 4 is a schematic view of the wheelchair in a folded state according to the embodiment of the present invention.

Figure 5 is another perspective view of the wheelchair in a folded state according to the embodiment of the utility model.

In the figure:

1. a backrest; 2. a cushion; 201. a fixing plate; 2011. a second groove; 3. an adjusting handle; 301. a first adjustment handle; 302. a second adjustment handle; 3021. a slider; 303. a connecting portion; 4. an adjustment wheel; 5. a first locking member; 501. a chute; 6. a connecting rod; 7. a second locking member; 701. a first groove; 8. an elastic member.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the wheelchair provided by the utility model comprises a backrest 1 and a seat cushion 2, wherein the backrest 1 and the seat cushion 2 are connected through an angle adjusting device, the angle adjusting device comprises an adjusting handle 3, an adjusting wheel 4 and a first locking piece 5, in the embodiment, the backrest 1 and the adjusting wheel 4 are fixed, the seat cushion 2 is connected with the first locking piece 5, of course, in other embodiments, the seat cushion 2 and the adjusting wheel 4 can be fixed, the backrest 1 and the first locking piece 5 are connected, referring to fig. 2, the adjusting handle 3 is connected with the first locking piece 5, the adjusting handle 3 can control the first locking piece 5 to selectively abut against the adjusting wheel 4, when the first locking piece 5 abuts against the adjusting wheel 4, the angle adjusting device is locked, the angle between the backrest 1 and the seat cushion 2 is fixed, when the first locking piece 5 and the adjusting wheel 4 are separated, the adjusting wheel 4 and the first locking piece 5 can move relatively, the angle of the backrest 1 and the cushion 2 can be adjusted at this time. By arranging the angle adjusting device, the angle between the seat cushion 2 and the backrest 1 can be adjusted, so that the riding comfort of the wheelchair is improved; the cooperation of regulating wheel 4,

adjustment handle

3 and 5 three of first locking piece not only can realize angle modulation function, has still simplified the inside regulation structure of wheelchair, and the cooperation of regulating wheel 4 and first locking piece 5 can make back 1 fold directly over cushion 2, and the convenience is accomodate the wheelchair.

Specifically, the regulating wheel 4 is a regulating gear, an arc-shaped surface is arranged on one side surface, close to the regulating gear, of the first locking piece 5, and tooth structures are distributed on the arc-shaped surface and can be meshed with the regulating gear. The adjusting wheel 4 is connected with the first locking piece 5 in a tooth meshing mode, so that the stability of the angle adjusting device when the first locking piece 5 abuts against the adjusting gear can be improved.

Specifically, the seat cushion 2 is hinged to the first locking member 5, the sliding groove 501 is arranged on the first locking member 5, the slider 3021 is arranged on the adjusting handle 3, the slider 3021 is inserted into the sliding groove 501, the slider 3021 has a first position and a second position in the sliding groove 501, referring to fig. 2, when the slider 3021 is located at the first position, the first locking member 5 is separated from the adjusting wheel 4, referring to fig. 1 and 3, when the slider 3021 moves from the first position to the second position, the first locking member 5 rotates to abut against the adjusting wheel 4. Because first locking member 5 and cushion 2 are articulated, when slider 3021 is in the primary importance, under the effect of gravity, first locking member 5 can rotate to 4 separations with the regulating wheel, regulating wheel 4 can rotate for cushion 2 this moment, realize the angle modulation function of back 1 and cushion 2, when slider 3021 is in the second place, under adjustment handle 3 and slider 3021's effect, regulating wheel 4 supports the tight meshing with first locking member 5, the locking of angle adjusting device, spout 501 and slider 3021's simple structure, convenient processing, both use the mode of pegging graft to connect, can reduce the installation degree of difficulty.

Specifically, the adjusting wheel 4 is fixed with the backrest 1, the fixing plate 201 is fixed at one end of the seat cushion 2 close to the first locking piece 5, and the adjusting handle 3, the adjusting wheel 4 and the fixing plate 201 are connected through a rotating shaft. Through setting up fixed plate 201, can provide the mounted position for being connected of cushion 2 and other spare parts, through fixed plate 201 with cushion 2 on, adjustment handle 3 and regulating wheel 4 use same pivot to be connected, angle adjusting device's inner structure can be simplified, reduce its equipment degree of difficulty, and fixed plate 201 and regulating wheel 4's connection can be for back 1 provides the support, divide the atress of regulating wheel 4 and first locking piece 5 equally, the size of the tight power of support between regulating wheel 4 and the first locking piece 5 has not only been reduced, angle adjusting device's stability can also be improved.

Preferably, be provided with the torsional spring in the pivot, the both ends of torsional spring respectively with back 1 and cushion 2 butt, the torsional spring has the trend of drive back 1 towards cushion 2 pivoted all the time. Through setting up the torsional spring, the user can sit on the wheelchair, when angle adjusting device unblock, just can accomplish the angle modulation of back 1 alone through the back to back 1 application of force, has reduced the degree of difficulty of back 1 angle modulation, has made things convenient for the use of user to the wheelchair.

Specifically, adjustment handle 3 includes connecting portion 303, first regulation handle 301 and second regulation handle 302, and connecting portion 303 and pivot are connected, and connecting portion 303 is connected with first regulation handle 301 and second regulation handle 302 respectively, and first regulation handle 301 and second regulation handle 302 are the contained angle, and slider 3021 sets up on second regulation handle 302. Through setting up first regulation handle 301, can conveniently unblock and lock angle adjusting device, during the use, only need rotate first regulation handle 301, first regulation handle 301 drives second regulation handle 302 and rotates, and slider 3021 just can switch in a flexible way between primary importance and second place, reduces angle adjusting device's the regulation degree of difficulty.

Specifically, angle adjusting device includes elastic component 8, in this embodiment, elastic component 8 is the spring, the one end and the cushion 2 of elastic component 8 are connected, the other end selectivity is connected with first regulation handle 301, when elastic component 8 and first regulation handle 301 are connected, elastic component 8 has the trend of shrink, under the effect of elastic component 8, adjustment handle 3 has the trend that drive slider 3021 is located the second place, at this moment, angle adjusting device can keep locking, avoid other external forces to rotate the condition that adjustment handle 3 leads to angle adjusting device unblock to take place, the security performance of wheelchair has been improved.

Specifically, the wheelchair comprises a power assembly, the power assembly is detachably connected with the seat cushion 2, and wheels are arranged on the power assembly. The power assembly can provide driving power for the wheelchair, and is convenient for a user to go out alone.

Referring to fig. 5, specifically, the angle adjusting device comprises a connecting rod 6 and a second locking piece 7, one end of the connecting rod 6 is hinged with the second locking piece 7, the other end of the connecting rod is hinged with the backrest 1, the second locking piece 7 is hinged with the fixing plate 201 on the seat cushion 2, a first groove 701 is arranged on the second locking piece 7, a locking rod is arranged on the power assembly, referring to fig. 3 and 4, the backrest 1 and the seat cushion 2 have an unfolding position and a folding position, when the backrest 1 and the seat cushion 2 are in the unfolding position, the locking rod is clamped in the first groove 701, and when the backrest 1 and the seat cushion 2 are in the folding position, the locking rod is separated from the first groove 701. When the angle adjusting device is in an unfolded position, the locking rod is clamped in the first groove 701, and the second locking piece 7 and the locking rod are matched to provide support for the backrest 1, so that the stress of the angle adjusting device is divided equally, and the service life of parts in the angle adjusting device is prolonged; under the action of the connecting rod 6, when the folding position is switched to the unfolding position, the backrest 1 can drive the second locking piece 7 to rotate through the connecting rod 6, the locking rod is clamped into the first groove 701, and due to the fact that the angle of the backrest 1 is adjustable, when the angle of the backrest 1 is adjusted under the unfolding position, under the action of the connecting rod 6, the locking rod can be kept in the state of being clamped into the first groove 701, and the supporting effect of the locking rod on the wheelchair is guaranteed.

Specifically, a second groove 2011 is arranged on the fixing plate 201 of the seat cushion 2, when the power assembly is connected with the seat cushion 2, the locking rod is clamped into the second groove 2011, the second locking piece 7 is selectively located at the locking position and the unlocking position, when the backrest 1 is located at the unfolding position, the second locking piece 7 is located at the locking position, the first groove 701 of the second locking piece 7 and the second groove 2011 are matched to form a closed fixing hole, the locking rod is limited in the fixing hole, when the backrest 1 is located at the folding position, the second locking piece 7 is located at the unlocking position, at this time, the notch of the first groove 701 and the notch of the second groove 2011 are both opened. Through setting up second recess 2011, can provide the location for the erection joint of power assembly and cushion 2, reduce the installation degree of difficulty between them. When the backrest 1 and the seat cushion 2 are in the unfolded positions, the first groove 701 and the second groove 2011 form a closed hole structure, and the locking rod can be tightly abutted by the first groove 701 and the second groove 2011 from different directions, so that the stress of the locking rod is balanced.

Specifically, the left and right sides of cushion 2 all is provided with angle adjusting device, can make back 1 rotate more steadily like this, has reduced the degree of difficulty of back 1 angle modulation, and after the angle modulation of back 1 finishes, can lock back 1 simultaneously from both sides, the atress of balanced back 1 both sides has improved angle adjusting device's working life.

Claims

1. The utility model provides a wheelchair, includes articulated back and cushion, its characterized in that, the back with set up angle adjusting device between the cushion, angle adjusting device includes adjustment handle, regulating wheel and first locking piece, the back with one in the both of cushion with the regulating wheel is connected, another with first locking piece is connected, adjustment handle control first locking piece selectivity supports tightly the regulating wheel, first locking piece with when the regulating wheel supports tightly, the back with the angle locking of cushion, first locking piece with during the regulating wheel separation, the back with the angle of cushion is adjustable.

2. The wheelchair of claim 1 wherein one of the backrest and the seat cushion is hinged to the first locking member, the first locking member has a slot, the adjustment handle has a slider that is inserted into the slot, the slider has a first position and a second position in the slot, the first locking member is separated from the adjustment wheel when the slider is in the first position, and the first locking member rotates into abutment with the adjustment wheel when the slider is moved to the second position.

3. The wheelchair of claim 2 wherein the adjustment wheel is an adjustment gear, and wherein an arcuate surface is disposed on a side of the first locking member adjacent to the adjustment gear, the arcuate surface having teeth disposed thereon, the teeth engaging the adjustment gear.

4. The wheelchair of claim 2 or 3, wherein the adjusting wheel is fixed to the backrest, the first locking member is hinged to the seat cushion, a fixing plate is fixed to one end of the seat cushion close to the first locking member, and the adjusting handle, the adjusting wheel and the fixing plate are connected through a rotating shaft.

5. The wheelchair of claim 4, wherein the adjustment handle comprises a connecting portion, a first adjustment handle and a second adjustment handle, the connecting portion is connected with the rotating shaft, the connecting portion is respectively connected with the first adjustment handle and the second adjustment handle, the first adjustment handle and the second adjustment handle form an included angle, and the sliding block is arranged on the second adjustment handle.

6. A wheelchair in accordance with claim 5, wherein the angle adjustment means comprises a resilient member having one end connected to the seat cushion and the other end selectively connected to the first adjustment handle, the resilient member having a tendency to contract when the resilient member is connected to the first adjustment handle, the adjustment handle having a tendency to drive the slide to the second position.

7. The wheelchair of claim 1 including a power assembly removably connected to the seat cushion, the power assembly having wheels disposed thereon.

8. The wheelchair as claimed in claim 7, wherein a locking lever is provided on the power assembly, the angle adjusting device comprises a connecting rod and a second locking member, one end of the connecting rod is hinged to one end of the second locking member, the other end of the connecting rod is hinged to the backrest, the second locking member is hinged to the seat cushion, a first groove is provided on the second locking member, when the backrest and the seat cushion are in the unfolded position, the locking lever is clamped into the first groove, and when the backrest and the seat cushion are in the folded position, the locking lever is separated from the first groove.

9. The wheelchair of claim 8, wherein a fixing plate is disposed at an end of the seat cushion close to the angle adjustment device, a second groove is disposed on the fixing plate, the second locking member is selectively located at a locking position and an unlocking position, when the backrest is located at the unfolding position, the second locking member is located at the locking position, the first groove of the second locking member and the second groove cooperate to form a closed fixing hole, the locking rod is defined in the fixing hole, when the backrest is located at the folding position, the second locking member is located at the unlocking position, and both the notch of the first groove and the notch of the second groove are opened.

10. The wheelchair of claim 1 wherein the angle adjustment means is provided on both left and right sides of the seat cushion.