CN209437527U - A kind of angle adjustment mechanism of wheelchair backrest - Google Patents
A kind of angle adjustment mechanism of wheelchair backrest Download PDFInfo
- Publication number
- CN209437527U CN209437527U CN201821605458.XU CN201821605458U CN209437527U CN 209437527 U CN209437527 U CN 209437527U CN 201821605458 U CN201821605458 U CN 201821605458U CN 209437527 U CN209437527 U CN 209437527U
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- circular hole
- pipe
- arc shape
- wheelchair
- fastener
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Abstract
The utility model discloses a kind of angle adjustment mechanisms of wheelchair backrest, including two adjusting components, adjusting component includes fixed plate, adjustable plate, play pin assemblies, fastener one, fastener two, fixed plate is vertically placed, the lower part of fixed plate and the transverse pipe on wheelchair frame top are fixed, adjustable plate is vertically arranged at fixed plate and leans against between pipe, it is vertically successively spaced apart on adjustable plate and is equipped with circular hole one, circular hole two, long arc shape hole one, correspondence offers circular hole three in fixed plate, long arc shape hole two, circular hole four, bullet pin assemblies, which are successively arranged in, leans against pipe, circular hole two, long arc shape hole two, fastener one is successively arranged in circular hole three, circular hole one, it leans against in pipe and fastens, fastener two is successively arranged in circular hole four, in long arc shape hole one and fasten.The utility model advantage is: by the way that this structure is arranged between pipe and vehicle frame in leaning against for wheelchair, realizing the adjustable of wheelchair backrest angle, meets different users, enhance comfort；This infrastructure cost is cheap, suitable for mass production.
Description
Technical field
The utility model relates to manual wheelchair technical fields, more particularly, to a kind of angle adjustment mechanism of wheelchair backrest.
Background technique
Currently, the backrest of most of manual wheelchair is unadjustable, backrest keeps a fixed angle, generally remains
It is vertical with cushion, so that user influences comfort when leaning on wheelchair backrest, due to the improper of angle, it is unable to satisfy not
With the demand of the user of stature.Although occurring the product of adjustable wheelchair backrest angle currently on the market, usually make
High price is expensive.
Utility model content
Purpose of utility model: in view of the above problems, the object of the present invention is to provide a kind of angle tune of wheelchair backrest
Section structure keeps the backrest angle of wheelchair adjustable, enhances comfort, meets various people's needs.
Technical solution: a kind of angle adjustment mechanism of wheelchair backrest, including two adjusting components, two adjusting components
It is relatively arranged on the lower part that vertical two of wheelchair lean against pipe respectively, the adjustings component includes fixed plate, adjustable plate, bullet pin bank
Part, fastener one, fastener two, the fixed plate are vertically placed, the lower part of the fixed plate and the transverse direction on wheelchair frame top
Pipe is fixed, the adjustable plate be vertically arranged at the fixed plate and it is described lean against between pipe, on the adjustable plate vertically successively
It is spaced apart and is equipped with circular hole one, circular hole two, long arc shape hole one, it is corresponding in the fixed plate to offer circular hole three, long arc shape hole two, circle
Kong Si, the bullet pin assemblies, which are successively arranged in, described leans against pipe, the circular hole two, the long arc shape hole two, the fastener one
Successively be arranged in the circular hole three, the circular hole one, it is described lean against in pipe and fasten, the fastener two is successively arranged in described
In circular hole four, the long arc shape hole one and fasten.
Fastener one, fastener two are the combination of bolts and nuts, when needing the angle to wheelchair backrest to be adjusted
When, it unscrews or extracts first fastener and unscrew extraction fastener two together, then pull and play pin assemblies, make to play pin assemblies from long arc
Shape Kong Erzhong is detached, and rotation adjustable plate rotates synchronously wheelchair backrest to suitable angle, and then unclamping bullet pin assemblies makes bullet pin
Component reinserts the another position of long arc shape Kong Erzhong, so that wheelchair backrest be made to be relocated, finally screws again tight
Firmware reinserts together screws fastener two, at this point, fastener two is arranged in the another position of long arc shape Kong Yizhong.
The adjustable angle of wheelchair backrest is realized, by this structure so as to meet the sitting posture habit of different users, user's root
It is simple and convenient according to itself habit regulating wheel seat back angle.
Further, the bullet pin assemblies include bolt, elastic component, pull ring, and the elastic component is sheathed on the bolt,
The entirety that the two is formed leans against in pipe described in being arranged in, and the head of the bolt is successively arranged in the circular hole two, the long arc
Shape Kong Erzhong, the pull ring are connect outside pipe with the tail portion of the bolt in described lean against.
By pulling pull ring, bolt can be made to extract from circular hole two, long arc shape hole two, elastic component is in compression shape at this time
State, after unclamping pull ring, under the action of elastic component elastic force, bolt springs into circular hole two, long arc shape Kong Erzhong again automatically.In addition,
By pulling the pull ring of wheelchair backrest two sides simultaneously, more convenient wheelchair backrest can be folded together.
Further, the bullet pin assemblies further include drawstring, and the drawstring is connect with the pull ring.Setting drawstring makes drawing
Move pin assemblies when it is more convenient.
Further, the elastic component is spring, and one end of the elastic component is bonded with the head of the bolt, the other end
It is bonded with the inner wall for leaning against pipe, makes the original state free state or micro- compressive state of elastic component.
Optimal, the long arc shape hole one, which is successively linked up by multiple circular holes five along arc-shaped track, to be arranged to make up.
Further, the grab being laterally extended along the wheelchair, the grab are equipped at the side edges of boards of the adjustable plate
It is arranged in described lean against on the outer wall of pipe.The positioning that grab is more advantageous to adjustable plate is set.
The utility model has the advantages that compared with prior art, the utility model has the advantages that: by wheelchair lean against pipe and vehicle frame it
Between this structure is set, the adjustable of wheelchair backrest angle is realized, so as to meet the sitting posture habit of different users, user's root
It is simple and convenient according to itself habit regulating wheel seat back angle, enhance comfort；Each parts-moulding of this structure is simple and convenient, at
This cheap, entirely appropriate batch production.
Detailed description of the invention
Fig. 1 is structural exploded view when this structure is installed；
Fig. 2 is the enlarged view I of Fig. 1.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for
Illustrate the utility model rather than limitation the scope of the utility model.
A kind of angle adjustment mechanism of wheelchair backrest, as shown in Figure 1, 2, including two adjusting components, two adjusting components
Vertical two for being respectively arranged at wheelchair backrest two sides lean against the lower part of pipe 1, and two adjusting components are oppositely arranged, and adjust component
Including fixed plate 2, adjustable plate 3, pin assemblies 4, fastener 1, fastener 26 are played, playing pin assemblies 4 includes bolt 41, elastic component
42, pull ring 43, drawstring 44, elastic component 42 are spring, and fastener 1, fastener 26 are the combination of bolts and nuts.
Fixed plate 2 is vertically placed, and the lower part of fixed plate 2 and the transverse pipe 7 on wheelchair frame top are adjusted by being welded and fixed
Plate 3 is vertically arranged at fixed plate 2 and leans against between pipe 1, is vertically successively spaced apart from top to bottom on adjustable plate 3 and is equipped with circular hole one
31, circular hole 2 32, long arc shape hole 1, long arc shape hole 1, which is successively linked up by multiple circular holes five along arc-shaped track, arranges structure
Be 25 °~30 ° at the angle that, long arc shape hole 1 is formed by the corresponding central angle in arc-shaped track, radius be 50mm~
60mm is vertically successively spaced apart in fixed plate 2 from top to bottom and is equipped with corresponding circular hole 3 21, long arc shape hole 2 22, circular hole four
23, the size in long arc shape hole 2 22 is matched with long arc shape hole 1, is leaned against and is vertically spaced from top to bottom on the tube wall of 1 lower part of pipe
Offer corresponding through-hole 1, through-hole 2 12.
The grab 34 extended transversely is equipped at the side edges of boards of adjustable plate 3, grab 34 is arranged in the outer wall for leaning against pipe 1
On, elastic component 42 is sheathed on bolt 41, and the entirety that the two is formed is arranged in through-hole 2 12, one end of elastic component 42 and bolt
41 head fitting, the other end are bonded with the inner wall for leaning against pipe 1, and the head of bolt 41 is successively arranged in circular hole 2 32, long arc shape
In hole 2 22, pull ring 43 is connect leaning against the outside of pipe 1 with the tail portion of bolt 41, and drawstring 44 is connect with pull ring 43, fastener 1 oneself
The outside of fixed plate 2 is successively arranged in circular hole 3 21, circular hole 1, in through-hole 1 and fastens, make fixed plate 2, adjustable plate 3,
It leans against pipe 1 to link into an integrated entity, fixed plate 2 is bonded with 3 plate face of adjustable plate, and fastener 26 is successively arranged in circular hole 4 23, long arc shape
It in hole 1 and fastens, at this point, fastener 26 is in one of circular hole five in long arc shape hole 1.
When needing the angle to wheelchair backrest to be adjusted, unscrews or extract first fastener and unscrew extraction fastening together
Part two, then pulls drawstring, extracts bolt from long arc shape hole two, and rotation adjustable plate drive leans against pipe rotation, to make to take turns
Chair back is rotated synchronously to suitable angle, and then unclamping drawstring makes bolt spring into long arc again under the action of elastic component elastic force
The another position of shape Kong Erzhong finally screws fastener again and reinserts together so that wheelchair backrest be made to be relocated
Fastener two is screwed, at this point, fastener two is arranged in another circular hole five of long arc shape Kong Yizhong.Pass through this structure reality
The adjustable angle of wheelchair backrest is showed, so as to meet the sitting posture habit of different users, user adjusts according to itself habit
Wheelchair backrest angle is saved, simple and convenient, each parts-moulding of structure is simple and convenient, low in cost, entirely appropriate batch production.
In addition, when fastener one, fastener two screw in place, by pulling the drawstring of wheelchair backrest two sides simultaneously,
More convenient wheelchair backrest can be folded together, to reduce the occupied space of wheelchair, make to go on a journey more convenient.
Claims (6)
1. a kind of angle adjustment mechanism of wheelchair backrest, including two adjusting components, two adjusting components are opposite respectively to be set
It is placed in the lower part that vertical two of wheelchair lean against pipe (1), it is characterised in that: the adjusting component includes fixed plate (2), adjustable plate
(3), pin assemblies (4), fastener one (5), fastener two (6) are played, the fixed plate (2) is vertically placed, the fixed plate (2)
The transverse pipe (7) on lower part and wheelchair frame top is fixed, the adjustable plate (3) be vertically arranged at the fixed plate (2) with it is described
It leans against between pipe (1), is vertically successively spaced apart on the adjustable plate (3) and is equipped with circular hole one (31), circular hole two (32), long arc shape
Hole one (33), correspondence offers circular hole three (21), long arc shape hole two (22), circular hole four (23), the bullet on the fixed plate (2)
Pin assemblies (4) lean against pipe (1), the circular hole two (32), the long arc shape hole two (22), the fastener described in being successively arranged in
One (5) be successively arranged in the circular hole three (21), the circular hole one (31), it is described lean against in pipe (1) and fasten, the fastener
Two (6) are successively arranged in the circular hole four (23), in the long arc shape hole one (33) and fasten.
2. a kind of angle adjustment mechanism of wheelchair backrest according to claim 1, it is characterised in that: the bullet pin assemblies
It (4) include bolt (41), elastic component (42), pull ring (43), the elastic component (42) is sheathed on the bolt (41), the two shape
At entirety be arranged in it is described lean against in pipe (1), the head of the bolt (41) is successively arranged in the circular hole two (32), described
In long arc shape hole two (22), the pull ring (43) connect outside pipe (1) with the tail portion of the bolt (41) in described lean against.
3. a kind of angle adjustment mechanism of wheelchair backrest according to claim 2, it is characterised in that: the bullet pin assemblies
It (4) further include drawstring (44), the drawstring (44) connect with the pull ring (43).
4. a kind of angle adjustment mechanism of wheelchair backrest according to claim 2, it is characterised in that: the elastic component (42)
One end for spring, the elastic component (42) is bonded with the head of the bolt (41), and the other end leans against the interior of pipe (1) with described
Wall fitting.
5. a kind of angle adjustment mechanism of wheelchair backrest according to claim 1, it is characterised in that: the long arc shape hole one
(33) successively linked up by multiple circular holes five along arc-shaped track and be arranged to make up.
6. a kind of angle adjustment mechanism of wheelchair backrest according to claim 1, it is characterised in that: the adjustable plate (3)
Side edges of boards at be equipped with the grab (34) that is laterally extended along the wheelchair, the grab (34), which is arranged in, described leans against pipe (1)
Outer wall on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821605458.XU CN209437527U (en) | 2018-09-29 | 2018-09-29 | A kind of angle adjustment mechanism of wheelchair backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821605458.XU CN209437527U (en) | 2018-09-29 | 2018-09-29 | A kind of angle adjustment mechanism of wheelchair backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209437527U true CN209437527U (en) | 2019-09-27 |
Family
ID=68009316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821605458.XU Active CN209437527U (en) | 2018-09-29 | 2018-09-29 | A kind of angle adjustment mechanism of wheelchair backrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209437527U (en) |
-
2018
- 2018-09-29 CN CN201821605458.XU patent/CN209437527U/en active Active
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