CN210158816U - Wheelchair backrest and wheelchair comprising same - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, and a wheelchair backrest and contain it is disclosed, wherein, the wheelchair backrest includes back main part and skeleton, and the back main part is connected with the skeleton, and the back main part includes two back boards that are the contained angle setting at least, forms contained angle position between two back boards, is equipped with the fine setting subassembly of the contained angle between two adjustable back boards in contained angle position department. Through setting up the back main part to have contained angle position to contained angle position sets up the fine setting subassembly here, can utilize the fine setting subassembly to adjust the angle of contained angle position, adjusts two contained angles between the back board that is the contained angle setting promptly, and then changes the local angle of back main part, in order to satisfy different users' different demands. Compared with the prior art, the wheelchair backrest of the utility model has the advantages of simple structure, convenient adjustment, wide application range and high comfort.

Description

Wheelchair backrest and wheelchair comprising same

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a wheelchair backrest and contain its wheelchair.

Background

The backrest of the existing wheelchair mainly has the following two structures: firstly, the backrest is fixed and can not be adjusted; and in the second type, the angle of the backrest can be adjusted, but only the integral angle adjustment can be realized. The prior art has the following problems: 1. the non-adjustable backrest has poor comfort in the use process and is not suitable for users with deformed spines; 2. if different backrests are made according to different user requirements, the manufacturing cost is high, and the application range is poor; 3. the backrest structure with the adjustable overall angle cannot realize local adjustment and also has the problem of poor comfort.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an aim at: the utility model provides a wheelchair backrest, its simple structure, but local angle regulation, application scope is wide, has higher travelling comfort.

The embodiment of the utility model provides a another aim at: to provide a wheelchair having a simple structure, a backrest capable of being partially adjusted, and high comfort.

To achieve the purpose, the embodiment of the present invention adopts the following technical solutions:

the utility model provides a wheelchair backrest, includes back main part and skeleton, the back main part with the skeleton is connected, the back main part includes two back boards that are the contained angle setting at least, two form the contained angle position between the back board contained angle position department is equipped with adjustable two the fine setting subassembly of contained angle between the back board.

As a preferred scheme of wheelchair back, fine setting subassembly includes angle roof, adjusting screw and adjusting nut, the angle roof with adjusting nut sets up respectively the both sides of back main part, the both ends of angle roof respectively with two the back board supports tightly, adjusting screw passes in proper order first regulation hole on the angle roof second regulation hole on the back main part with adjusting screw connects soon.

As a preferable scheme of the wheelchair backrest, a screwing seat is fixedly arranged in the second adjusting hole, and a threaded hole screwed with the adjusting screw is formed in the screwing seat.

As a preferable mode of the wheelchair backrest, the angle top plate is located inside the included angle position.

As a preferred scheme of wheelchair back, the back main part is including the first back board that supports human back, the upper end of first back board is equipped with the second back board that supports human head, the lower extreme of first back board with the skeleton is connected, first back board with be provided with between the second back board the contained angle position.

As a preferable scheme of the wheelchair backrest, a third backrest plate and a fourth backrest plate are respectively arranged on the left side and the right side of the first backrest plate, the third backrest plate and the fourth backrest plate are respectively arranged corresponding to the two sides of the waist of a human body, and the included angle positions are respectively arranged between the third backrest plate and the first backrest plate and between the fourth backrest plate and the second backrest plate.

As a preferable scheme of the wheelchair backrest, a fifth backrest plate is arranged at the lower end of the first backrest plate, the fifth backrest plate is connected with the framework, and the included angle position is arranged between the fifth backrest plate and the first backrest plate.

As a preferable scheme of the wheelchair backrest, the backrest main body is formed by punching a metal plate.

As a preferable scheme of the wheelchair backrest, a backrest cushion is sleeved outside the backrest main body.

In a second aspect, a wheelchair comprising the wheelchair backrest is also provided.

The utility model discloses beneficial effect does: through setting up the back main part to have contained angle position to contained angle position sets up the fine setting subassembly here, can utilize the fine setting subassembly to adjust the angle of contained angle position, adjusts two contained angles between the back board that is the contained angle setting promptly, and then changes the local angle of back main part, in order to satisfy different users' different demands. Compared with the prior art, the wheelchair backrest of the utility model has the advantages of simple structure, convenient adjustment, wide application range and high comfort.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is a first perspective view of a wheelchair backrest according to an embodiment of the present invention.

Fig. 2 is a second perspective view of the wheelchair backrest according to the embodiment of the present invention.

Fig. 3 is a perspective view of a wheelchair backrest according to an embodiment of the present invention (the backrest cushion is not shown).

Fig. 4 is an exploded view of fig. 3.

Fig. 5 is a side view of fig. 4.

Fig. 6 is a partially enlarged schematic view of a wheelchair backrest according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of a wheelchair backrest according to an embodiment of the present invention before adjustment.

Fig. 8 is a schematic structural view of the wheelchair backrest according to the embodiment of the present invention in adjustment.

Fig. 9 is a first perspective view of a wheelchair in accordance with an embodiment of the present invention.

Figure 10 is a second perspective view of a wheelchair in accordance with an embodiment of the present invention.

In the figure:

100. a wheelchair backrest;

1. a backrest body; 11. a first back board; 12. a second back board; 13. a third back board; 14. a fourth back rest plate; 15. a fifth backrest plate; 2. a framework; 3. a fine tuning component; 31. an angled roof; 311. a first adjustment aperture; 32. adjusting screws; 321. inserting holes; 33. adjusting the nut; 331. inserting grooves; 34. a screwing seat; 35. a rotation stopping block; 4. a backrest cushion;

200. a cushion; 300. a handrail.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 8, an embodiment of the present invention provides a wheelchair backrest 100, including a backrest main body 1 and a frame 2, the backrest main body 1 is connected to the frame 2, the backrest main body 1 at least includes two back boards that are included angle settings, an included angle position is formed between the two back boards, and a fine adjustment assembly 3 that is capable of adjusting an included angle between the two back boards is disposed at the included angle position. Through setting up back main part 1 to having contained angle position to contained angle position sets up fine setting subassembly 3 here, can utilize fine setting subassembly 3 to adjust the angle of contained angle position, adjusts two contained angles between the back board that is the contained angle setting promptly, and then changes the local angle of back main part 1, with the different demands that satisfy different users. Compared with the prior art, the wheelchair backrest 100 of the utility model has the advantages of simple structure, convenient adjustment, wide application range and high comfort.

In one embodiment, the backrest body 1 includes a first backrest plate 11, a second backrest plate 12, a third backrest plate 13, a fourth backrest plate 14, and a fifth backrest plate 15, wherein the first backrest plate 11 is disposed corresponding to the back of the human body, the second backrest plate 12 is disposed corresponding to the head of the human body and is disposed at the upper end of the first backrest plate 11, the third backrest plate 13 and the fourth backrest plate 14 are disposed corresponding to the waist side of the human body and are disposed at the left and right ends of the first backrest plate 11, respectively, and the fifth backrest plate 15 is used for connecting the frame 2 and is disposed at the lower end of the first backrest plate 11.

Of course, in other embodiments, the back boards other than the first back board 11 may be omitted correspondingly. For example, if the second back board 12 is omitted, only the back and the waist of the human body can be supported, and only the angle required by the back and the waist can be adjusted during adjustment; if the third back board 13 and the fourth back board 14 are omitted, only the head, the back and the cervical vertebrae of the human body can be supported, and when the adjustment is performed, the angle suitable for the cervical vertebrae can be adjusted, and the like.

The fine tuning components 3 have multiple groups, including a first group of fine tuning components 3 arranged in an included angle position between the first back board 11 and the second back board 12, a second group of fine tuning components 3 arranged in an included angle position between the first back board 11 and the third back board 13, a third group of fine tuning components 3 arranged in an included angle position between the first back board 11 and the fourth back board 14, and a fourth group of fine tuning components 3 arranged in an included angle position between the first back board 11 and the fifth back board 15.

In the present embodiment, all included angles of the included angle positions on the backrest main body 1 are less than 180 degrees, specifically, the second backrest plate 12, the third backrest plate 13 and the fourth backrest plate 14 are all inclined towards one side of the first backrest plate 11 close to the human body, and the first backrest plate 11 is inclined towards one side away from the human body relative to the fifth backrest plate 15, so that the first backrest plate 11 is inclined backwards, and the rest backrest plates are inclined towards the human body to wrap the human body, and this structure is more ergonomic and improves the comfort level of use.

In one embodiment, the fine adjustment assembly 3 includes an angle top plate 31, an adjustment screw 32 and an adjustment nut 33, the angle top plate 31 and the adjustment nut 33 are respectively disposed at two sides of the backrest body 1, two ends of the angle top plate 31 respectively abut against two backrest plates, and the adjustment screw 32 sequentially passes through a first adjustment hole 311 on the angle top plate 31 and a second adjustment hole on the backrest body 1 to be screwed with the adjustment screw 32. Through setting up the fine setting subassembly 3 of this structure, can be through twisting adjusting nut 33 soon to pulling adjusting screw 32 removes, and then pulling angle roof 31 removes, and two backs are supported tightly respectively at the both ends of angle roof 31, can make the contained angle between two backs grow or diminish as required, and then realize wheelchair back 100's local angular adjustment.

In the present embodiment, the first back plate 11, the second back plate 12, the third back plate 13, the fourth back plate 14, and the fifth back plate 15 are integrally formed, and preferably, the five back plates are integrally formed by press molding a metal thin plate. The metal sheet has strong elasticity, and can be used for conveniently adjusting the angle of the included angle position. Preferably, the angled roof 31 is located inboard of the included angle. Of course, in other embodiments, the backrest body 1 is not limited to be made of a metal thin plate, but may be made of other materials that can be deformed by extrusion, for example, a plastic thin plate.

In addition, the five back boards are not limited to be integrally formed, and can be formed separately, for example, by welding.

In one embodiment, each set of trimming elements 3 comprises at least one trimming element 3.

In this embodiment, the first group of fine adjustment assemblies 3 includes two fine adjustment assemblies 3, the two fine adjustment assemblies 3 are spaced apart in the horizontal direction and are symmetrical with respect to the center line of the first backboard 11 in the vertical direction, the second group of fine adjustment assemblies 3 includes two fine adjustment assemblies 3, the two fine adjustment assemblies 3 are spaced apart in the vertical direction and are symmetrical with respect to the center line of the first backboard 11 in the horizontal direction, the third group of fine adjustment assemblies 3 includes two fine adjustment assemblies 3, the two fine adjustment assemblies 3 are spaced apart in the vertical direction and are symmetrical with respect to the center line of the first backboard 11 in the horizontal direction, the fourth group of fine adjustment assemblies 3 includes two fine adjustment assemblies 3, the two fine adjustment assemblies 3 are spaced apart in the horizontal direction and are symmetrical with respect to the center line of the first backboard 11 in the vertical direction. The width and the height of the wheelchair backrest 100 are both a certain distance, and two fine adjustment assemblies 3 are arranged in each direction, so that the adjustment is convenient, and the adjustment difficulty is reduced.

Of course, the number of the fine adjustment assemblies 3 is not limited to two, and more fine adjustment assemblies 3 can be arranged according to the size of the actual wheelchair backrest 100, so as to ensure that the angle adjustment of each position at the same included angle position is consistent, and the adjustment difficulty is also reduced.

In addition, two third back boards 13 are arranged on the first back board 11, the two third back boards 13 are arranged at intervals along the vertical direction, two fourth back boards 14 are arranged on the first back board 11, and the two fourth back boards 14 are arranged at intervals along the vertical direction. The backrest plate at the waist side of the human body can be arranged into one, two or even more blocks as required, so that more positions can be adjusted.

Optionally, a screwing seat 34 is fixedly arranged in the second adjusting hole, and a threaded hole screwed with the adjusting screw 32 is formed in the screwing seat 34. The adjusting difficulty of the adjusting screw 32 can be reduced by arranging the screwing seat 34, when the adjusting screw is adjusted, only the adjusting nut 33 needs to be screwed, the adjusting screw 32 can rotate relative to the screwing seat 34 according to the set direction, the screw cap at the end part of the adjusting screw 32 can limit the angle top plate 31 to be separated from the adjusting screw 32, and the angle top plate 31 is pushed to move according to the set direction, so that the angle top plate 31 extrudes the included angle position, and the angle of the included angle position is changed.

Furthermore, one end of the adjusting screw 32, which is far away from the nut, penetrates through the adjusting screw 32 in the radial direction to form an insertion hole 321, a rotation stopping block 35 is inserted in the insertion hole 321, two ends of the rotation stopping block 35 extend to the outside of the adjusting screw 32, an insertion groove 331 corresponding to the rotation stopping block 35 is formed in the adjusting nut 33, after the adjusting nut 33 is assembled with the adjusting screw 32, the end of the rotation stopping block 35 is inserted into the insertion groove 331 of the adjusting nut 33, and the adjusting screw 32 can be effectively prevented from rotating together with the adjusting nut 33.

In one embodiment, a backrest cushion 4 is sleeved outside the backrest main body 1. Through setting up back pad 4, can shelter from back main part 1 and fine setting subassembly 3, promote the pleasing to the eye degree of outward appearance of wheelchair, the travelling comfort when also can promote the user to use simultaneously, need not direct and harder back main part 1 contact promptly.

In the present embodiment, the back cushion 4 is assembled to the back main body 1 by a quick coupling structure such as a hook and loop fastener.

Of course, the back cushion 4 is not limited to wrapping the entire back main body 1, and may be provided at a partial position of the back main body 1, for example, at a side of the back main body 1 close to the human body.

As shown in fig. 9 and 10, the present invention further provides a wheelchair including the wheelchair backrest 100 according to any of the above embodiments, and the detailed structure of the wheelchair backrest 100 is not repeated here.

The wheelchair also comprises a cushion 200, the backrest 100 of the wheelchair is arranged behind the cushion 200, and armrests 300 are arranged on two sides of the cushion 200

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single technical solution, and such description is for clarity only, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that may be understood by those skilled in the art.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims (10)

1. The utility model provides a wheelchair backrest, its characterized in that, includes back main part and skeleton, the back main part with the skeleton is connected, the back main part includes two back boards that are the contained angle setting at least, two form the contained angle position between the back board contained angle position department is equipped with adjustable two the fine setting subassembly of contained angle between the back board.

2. The wheelchair backrest as claimed in claim 1, wherein the fine adjustment assembly comprises an angle top plate, an adjustment screw and an adjustment nut, the angle top plate and the adjustment nut are respectively arranged at two sides of the backrest body, two ends of the angle top plate are respectively abutted against the two backrest plates, and the adjustment screw sequentially penetrates through a first adjustment hole in the angle top plate and a second adjustment hole in the backrest body to be screwed with the adjustment screw.

3. The wheelchair backrest as claimed in claim 2, wherein a screwing seat is fixedly arranged in the second adjusting hole, and a threaded hole screwed with the adjusting screw is formed in the screwing seat.

4. The wheelchair backrest as claimed in claim 2, wherein the angle top plate is located inside the included angle position.

5. The wheelchair backrest as claimed in claim 1, wherein the backrest body comprises a first backrest plate for supporting the back of a human body, a second backrest plate for supporting the head of the human body is provided at the upper end of the first backrest plate, the lower end of the first backrest plate is connected with the frame, and the included angle position is provided between the first backrest plate and the second backrest plate.

6. The wheelchair backrest as claimed in claim 5, wherein a third backrest plate and a fourth backrest plate are respectively disposed on left and right sides of the first backrest plate, the third backrest plate and the fourth backrest plate are respectively disposed corresponding to two sides of the waist of the human body, and the included angle positions are disposed between the third backrest plate and the first backrest plate and between the fourth backrest plate and the second backrest plate.

7. The wheelchair backrest as claimed in claim 5, wherein a fifth backrest plate is provided at a lower end of the first backrest plate, the fifth backrest plate is connected with the frame, and the included angle is provided between the fifth backrest plate and the first backrest plate.

8. A wheelchair backrest as claimed in any one of claims 1 to 7, wherein the backrest body is stamped and formed from sheet metal.

9. A wheelchair back as claimed in any one of claims 1 to 7, wherein the back body is provided externally with a back cushion.

10. A wheelchair comprising a wheelchair backrest as claimed in any one of claims 1 to 9.

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