CN115844645B - Wheelchair armrest structure - Google Patents
Wheelchair armrest structureInfo
- Publication number
- CN115844645B CN115844645B CN202211630304.7A CN202211630304A CN115844645B CN 115844645 B CN115844645 B CN 115844645B CN 202211630304 A CN202211630304 A CN 202211630304A CN 115844645 B CN115844645 B CN 115844645B
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- China
- Prior art keywords
- armrest
- locking
- wheelchair
- hole
- support
- Prior art date
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Abstract
本发明提供的轮椅扶手结构，包括自后下方向前上方倾斜延伸的扶手撑杆、后端部与扶手撑杆上端部转动连接的扶手支架、用于锁定扶手支架和扶手撑杆的锁定单元、用于限定扶手支架转动角度的限位块，通过使扶手支架具有与扶手撑杆相远离并沿前后方向水平延伸的展开状态，和与扶手撑杆相靠拢的收叠状态，使锁定单元位于转动轴的下方，使锁定单元包括活动连接在扶手撑杆上的锁定销和开设在扶手支架上的锁定孔，在锁定销插入锁定孔时，锁定单元锁定，扶手支架与扶手撑杆的相对位置保持固定，在锁定销脱离锁定孔时，锁定单元解锁，扶手支架可相对于扶手撑杆向前下方翻转，操作简单、使用方便、收叠后占用空间小。
The wheelchair armrest structure provided by the present invention includes an armrest support rod extending obliquely from the rear lower part to the front upper part, an armrest bracket rotatably connected to the upper end of the armrest bracket, a locking unit for locking the armrest bracket and the armrest bracket, and a limit block for limiting the rotation angle of the armrest bracket. By making the armrest bracket have an expanded state away from the armrest support rod and extending horizontally in the front-to-back direction, and a folded state close to the armrest support rod, the locking unit is located below the rotation axis, and the locking unit includes a locking pin movably connected to the armrest support rod and a locking hole provided on the armrest bracket. When the locking pin is inserted into the locking hole, the locking unit is locked, and the relative position of the armrest bracket and the armrest support rod remains fixed. When the locking pin is disengaged from the locking hole, the locking unit is unlocked, and the armrest bracket can be flipped forward and downward relative to the armrest support rod. The operation is simple, the use is convenient, and the space occupied after folding is small.
Description
Technical Field
The invention belongs to the technical field of wheelchairs, and particularly relates to a wheelchair armrest structure.
Background
The wheelchair is used for providing convenient apparatus for people who walk inconveniently, in order to guarantee the security and the riding comfort of wheelchair marcing in-process, the wheelchair both sides are equipped with the handrail mostly, current handrail is roughly divided into fixed, detachable, back lift type three types, fixed handrail is inconvenient for the user to shift out the wheelchair laterally, detachable handrail is after dismantling, can make things convenient for the user to shift out the wheelchair laterally, but dismantlement process operation is complicated, follow-up use still reinstallation is inconvenient, back lift type handrail accessible is turned over backward and is realized folding, the user of convenience shifts out the wheelchair laterally, but after folding, handrail support and handrail brace actually become acute angle and even flat angle expansion, occupation space is big.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the wheelchair armrest structure which is simple to operate, convenient to use and small in occupied space after being folded.
In order to achieve the above purpose, the technical scheme adopted by the invention is that the wheelchair armrest structure comprises:
The armrest brace rod extends obliquely from the back lower direction to the front upper direction;
The rear end part of the armrest bracket is rotationally connected with the upper end part of the armrest stay bar through a rotating shaft;
a locking unit for locking the relative positions of the armrest support and the armrest strut;
the limiting block is used for limiting the rotation angle of the armrest support;
The armrest support is in an unfolding state and a folding state, when the armrest support is in the unfolding state, the armrest support is far away from the armrest supporting rod, the armrest support horizontally extends along the front-back direction, when the armrest support is in the folding state, the armrest support is close to the armrest supporting rod, and an included angle between the armrest support and the armrest supporting rod is an acute angle;
The locking unit is located the below of axis of rotation, the locking unit includes locking pin and locking hole, locking pin swing joint is in on the handrail vaulting pole, the locking hole is seted up on the handrail support, when the locking pin inserts the locking hole, the locking unit locks, the handrail support with the relative position of handrail vaulting pole remains fixed, when the locking pin breaks away from the locking hole, the locking unit unblock, the handrail support can be with handrail vaulting pole forward below upset.
Preferably, the rear end part of the armrest support is provided with an outer hanging lug and an inner hanging lug which extend obliquely downwards and backwards, the outer hanging lug abuts against the outer side face of the armrest supporting rod, the inner hanging lug abuts against the inner side face of the armrest supporting rod, and the rotating shaft sequentially penetrates through the outer hanging lug, the armrest supporting rod and the inner hanging lug from outside to inside.
Further preferably, the locking hole is formed in the outer hanging lug, and the locking pin is connected to the outer side face of the armrest supporting rod in a telescopic manner.
Further preferably, an annular surrounding block for surrounding the locking hole is arranged on the outer side face of the outer hanging lug, an unlocking button is inserted in the surrounding block, an unlocking column which is aligned with the locking hole and has a cross-shaped cross section is connected to the inner side face of the unlocking button, and when the unlocking button is pressed down, the unlocking column stretches into the locking hole to eject the locking pin inwards, so that the locking unit is unlocked.
Further preferably, the distance between the inner side surface of the unlocking button and the outer side surface of the outer hanging lug is larger than the hole depth of the locking hole and smaller than the distance between the outer edge of the locking hole and the outer side surface of the armrest stay.
Further preferably, the axial lead of the enclosure is located below the axial lead of the locking hole, and the unlocking button and the enclosure are coaxially arranged.
Further preferably, the outer end portion of the enclosure is connected with a first annular flange extending inwards, an elastic barb is arranged on the outer wall of the unlocking button, and when the unlocking button is inserted into the enclosure, the elastic barb extrudes into the first annular flange and hooks the inner wall surface of the first annular flange, so that the unlocking button is prevented from being separated outwards.
Further preferably, the outer side surface of the armrest stay bar is provided with a blind hole for accommodating the locking pin, an elastic element is arranged in the blind hole, two ends of the elastic element respectively support against the locking pin and the bottom wall of the blind hole, and the elastic element has a tendency of driving the locking pin to extend out of the blind hole.
Still preferably, the armrest stay bar comprises a stay bar body extending obliquely upward and forward along the rear lower direction and a connecting seat inserted at the upper end part of the stay bar body, the blind hole comprises a face hole formed in the outer side surface of the stay bar body and a through hole penetrating through the connecting seat, the face hole and the through hole are coaxially arranged, and the aperture of the face hole is smaller than that of the through hole.
Further preferably, the inner end of the locking pin is provided with a second annular flange protruding outwards, the outer diameter of the second annular flange is larger than the aperture of the face, and when the locking pin protrudes outwards, the second annular flange abuts against the inner hole of the face to prevent the locking pin from being separated outwards.
Further preferably, the lower end of the stay bar body is connected with a rear wheel assembly of the wheelchair, or the lower end of the stay bar body is connected with a backrest bar of the wheelchair, or the lower end of the stay bar body is connected with a seat bar of the wheelchair, or the lower end of the stay bar body is connected with a bottom stay bar of the wheelchair.
Still preferably, the stopper is connected to a side surface of the armrest strut and located above the locking unit, and has a first limiting surface and a second limiting surface, when the armrest support is in the unfolded state, a rear end of the armrest support abuts against the first limiting surface, and when the armrest support is in the folded state, a middle of the armrest support abuts against the second limiting surface.
Further preferably, the middle part of the limiting block is connected with the rotating shaft, and the bottom of the limiting block is fixed on the inner side surface of the armrest supporting rod through a locking bolt.
Further preferably, the outer end portion of the stopper is an annular boss having a notch and surrounding the rotation shaft, the notch is directed upward and forward, and the first stopper surface directed upward and the second stopper surface directed forward are formed at the outer end portion of the stopper.
Further preferably, the wheelchair armrest structure further comprises an armrest coupled to the upper surface of the armrest support.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
The wheelchair armrest structure comprises an armrest supporting rod, a locking unit and a limiting block, wherein the armrest supporting rod obliquely extends from the rear lower side to the front upper side, the rear end of the armrest supporting rod is rotationally connected with the upper end of the armrest supporting rod, the locking unit is used for locking the relative positions of the armrest supporting rod and the armrest supporting rod, the limiting block is used for limiting the rotation angle of the armrest supporting rod, the armrest supporting rod is in an unfolding state which is far away from the armrest supporting rod and horizontally extends along the front-rear direction, and in a folding state which is close to the armrest supporting rod and forms an acute angle with the armrest supporting rod, the locking unit is positioned below a rotating shaft, the locking unit comprises a locking pin movably connected to the armrest supporting rod and a locking hole formed in the armrest supporting rod, when the locking pin is inserted into the locking hole, the relative positions of the armrest supporting rod and the armrest supporting rod are kept fixed, and when the locking pin is separated from the locking hole, the locking unit is unlocked, the armrest supporting rod can be turned forwards and downwards relative to the armrest supporting rod, and can be folded from the side of a user through the armrest supporting rod, and the wheelchair is convenient to use, and the wheelchair is easy to operate, and occupies a small space after folding.
Drawings
Fig. 1 is a schematic front view of a first embodiment of the present invention, wherein only the upper half of the armrest brace is shown for ease of viewing.
Fig. 2 is an exploded perspective assembly view of fig. 1.
FIG. 3 is an enlarged schematic view of the section in the direction A-A of FIG. 1.
Fig. 4 and 5 are perspective views of fig. 1, in which the armrest support of fig. 5 is in an unfolded state and the armrest support of fig. 6 is in a folded state.
Fig. 6 is a schematic perspective view of a second embodiment of the present invention, in which the armrest support is in a folded state.
Fig. 7 is an enlarged schematic view of the outer ear of fig. 6 from the front view.
The novel hand rail comprises a hand rail support rod 10, a rotary shaft 11, a blind hole 12, a spring 14, a support rod body 15, a connecting seat 16, a face hole 17, a through hole 20, a hand rail support 21, an outer hanging lug 22, an inner hanging lug 23, a surrounding baffle 24, an unlocking button 25, an unlocking post 26, a first annular flange 27, an elastic reverse hook 28, a mounting hole 30, a locking unit 31, a locking pin 32, a locking hole 33, a second annular flange 40, a limiting block 41, a first limiting surface 42, a second limiting surface 43, a locking bolt 44, an annular boss 45, a notch 50 and a hand rail.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention will be more readily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
The front-rear direction, the left-right direction, and the up-down direction described in the present invention are based on the front-rear direction, the left-right direction, and the up-down direction observed by a patient when riding the foldable wheelchair provided in the present invention.
Example 1
As shown in fig. 1 to 5, the wheelchair armrest structure provided by the invention comprises an armrest brace 10, an armrest support 20, a locking unit 30 and a limiting block 40, wherein the armrest brace 10 extends obliquely from the front upper side to the rear lower side, the rear end of the armrest support 20 is rotatably connected with the upper end of the armrest brace 10 through a rotating shaft 11, the locking unit 30 is used for locking the relative positions of the armrest support 20 and the armrest brace 10, the limiting block 40 is used for limiting the rotating angle of the armrest support 20, in particular, the armrest support 20 has an unfolding state and a folding state, the armrest support 20 is far away from the armrest brace 10 when the armrest support 20 is in the unfolding state, the armrest support 20 horizontally extends along the front-rear direction, the armrest support 20 is close to the armrest brace 10 when the armrest support 20 is in the folding state, an included angle between the armrest support 20 and the armrest brace 10 is an acute angle of 45 degrees, the locking unit 30 is positioned below the rotating shaft 11, the locking pin 31 and the locking pin 32 is movably connected to the armrest brace 10, the locking hole 32 is formed on the armrest support 20, the locking pin 32 is opened on the armrest support 20, the locking pin 32 is inserted into the locking pin 32, the locking unit is locked by the locking pin 30 is positioned at the locking pin 30 and the locking pin 30 is kept at the locking position opposite to the front position to the lower side of the armrest support 10, and the locking unit is kept at the unlocking position relative to the locking pin 30.
The wheelchair has the advantages that a user can conveniently put on and off the wheelchair from the side through folding the handrail support, the wheelchair is simple and reliable in structure, high in safety coefficient, simple to operate, convenient to use, small in occupied space after folding, capable of achieving locking by using fewer parts, low in cost, free of redundant parts and concise in appearance.
In this embodiment, the rear end portion of the armrest support 20 is provided with an outer hanging lug 21 and an inner hanging lug 22 extending obliquely downward and rearward, the outer hanging lug 21 abuts against the outer side surface of the armrest supporting rod 10, the inner hanging lug 22 abuts against the inner side surface of the armrest supporting rod 10, the rotation shaft 11 sequentially penetrates through the outer hanging lug 21, the armrest supporting rod 10 and the inner hanging lug 22 from outside to inside, the locking hole 32 is formed in the outer hanging lug 21, and the locking pin 31 is telescopically connected to the outer side surface of the armrest supporting rod 10.
Further, an annular surrounding block 23 surrounding the locking hole 32 is arranged on the outer side surface of the outer hanging lug 21, an unlocking button 24 is inserted into the surrounding block 23, an unlocking post 25 which is aligned with the locking hole 32 and has a cross-shaped cross section is connected to the inner side surface of the unlocking button 24, and when the unlocking button 24 is pressed down, the unlocking post 25 stretches into the locking hole 32 to eject the locking pin 31 inwards, so that the locking unit 30 is unlocked.
To ensure the unlocking effect, in this embodiment, the distance between the inner side surface of the unlocking button 24 and the outer side surface of the outer hanger 21 is greater than the hole depth of the locking hole 32 and smaller than the distance between the outer edge of the locking hole 32 and the outer side surface of the armrest strut 10, and the axis of the enclosure 23 is located below the axis of the locking hole 32, and the unlocking button 24 and the enclosure 23 are coaxially disposed.
To prevent the unlocking button 24 from being separated from the enclosure 23 outwards, in this embodiment, the outer end of the enclosure 23 is connected with a first annular flange 26 extending inwards, the outer wall of the unlocking button 24 is provided with an elastic barb 27, and when the unlocking button 24 is inserted into the enclosure 23, the elastic barb 27 is extruded into the first annular flange 26 and hooks the inner wall surface of the first annular flange 26.
In order to facilitate the setting of the locking pin 31, in this embodiment, the outer side surface of the armrest strut 10 is provided with a blind hole 12 for accommodating the locking pin 31, a spring 13 is disposed in the blind hole 12, two ends of the spring 13 respectively abut against the locking pin 31 and the bottom wall of the blind hole 13, and the spring 13 has a tendency to urge the locking pin 31 to extend out of the blind hole 12.
In the present embodiment, the armrest strut 10 includes a strut body 14 extending obliquely upward and forward in the rear-lower direction and a connection seat 15 interposed at an upper end portion of the strut body 14, the strut body 14 serving as a rear wheel bracket of the wheelchair, a lower end portion thereof being connected to a rear wheel assembly, and in other embodiments, a lower end portion of the strut body 14 being connected to a backrest bar of the wheelchair, or a lower end portion of the strut body 14 being connected to a seat bar of the wheelchair, or a lower end portion of the strut body 14 being connected to a bottom strut of the wheelchair.
Further, the blind hole 12 includes a face hole 16 formed on the outer side surface of the stay body 14 and a through hole 17 penetrating the connecting seat 15, and the face hole 16 is coaxially disposed with the through hole 17.
To prevent the locking pin 31 from being separated from the blind hole 12 outwards, in this embodiment, the aperture of the face hole 16 is smaller than the aperture of the through hole 17, the inner end portion of the locking pin 31 is provided with a second annular flange 33 protruding outwards, the outer diameter of the second annular flange 33 is larger than the aperture of the face hole 16, and when the locking pin 31 protrudes outwards, the second annular flange 33 abuts against the inner hole edge of the face hole 16 to prevent the locking pin 31 from being separated outwards.
In this embodiment, the stopper 40 is connected to the side of the armrest strut 10 and located above the locking unit 30, the stopper 40 has a first stopper surface 41 and a second stopper surface 42, when the armrest support 20 is in the unfolded state, the rear end of the armrest support 20 abuts against the first stopper surface 41, when the armrest support 20 is in the folded state, the middle rear of the armrest support 20 abuts against the second stopper surface 42, specifically, the middle of the stopper 40 is connected to the rotating shaft 11, the bottom of the stopper 40 is fixed to the inner side of the armrest strut 10 by a locking bolt 43, the outer end of the stopper 40 has a notch 45 and an annular boss 44 surrounding the rotating shaft 11, the notch 45 faces forward and upward, and the annular boss 44 at the outer end of the stopper 40 forms the first stopper surface 41 facing upward and the second stopper surface 42 facing forward.
To enhance comfort in use, in this embodiment, the wheelchair armrest structure further includes an armrest 50 attached to the upper surface of the armrest support 20.
Example two
As shown in fig. 6 and 7, the second embodiment is basically the same as the first embodiment, except that in the second embodiment, the center O of the axle center of the mounting hole 28 penetrating the rotation shaft 11 on the outer hanger 21 is the center O, and a virtual circle is drawn with the distance between the axis line of the mounting hole 28 and the axis line of the locking hole 32 as a radius, the intersection point of the virtual circle and the front end surface of the outer hanger 21 is S1, and the intersection point of the virtual circle and the rear side of the locking hole 32 is S2, the angle between the line segment OS1 and the line segment OS2 is smaller than or equal to the rotation angle of the armrest support 20 from the unfolded state to the folded state, so that the locking pin 31 protrudes outwards and abuts against the front end surface of the outer hanger 21 when the armrest support 20 is in the folded state, and the armrest support 20 is prevented from rotating backwards and upwards by the abutment of the second limiting surface 42 and the locking pin 31 is pushed out by the spring 13.
That is, in the second embodiment, the lock pin 31 can function as both a lock function when the armrest support 20 is in the expanded state and a lock function when the armrest support 20 is in the collapsed state.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (14)
1. A wheelchair armrest structure comprising:
a handrail stay extending obliquely from the rear lower direction to the front upper direction;
The armrest support is provided with an unfolding state and a folding state, and when the armrest support is in the unfolding state, the armrest support horizontally extends along the front-back direction and is far away from the armrest stay bar;
The locking unit is used for locking the relative positions of the armrest support and the armrest stay bar, and comprises a locking pin movably connected to the armrest stay bar and a locking hole formed in the armrest support, when the locking pin is inserted into the locking hole, the locking unit locks, and the relative positions of the armrest support and the armrest stay bar are kept fixed;
a limiting block for limiting the rotation angle of the armrest support;
the method is characterized in that:
The outer side surface of the armrest stay bar is provided with a blind hole for accommodating the locking pin, and an elastic element for driving the locking pin to extend out of the blind hole is arranged in the blind hole;
The rear end part of the armrest support is rotationally connected with the upper end part of the armrest supporting rod through a rotating shaft, the rear end part of the armrest support is provided with an outer hanging lug and an inner hanging lug which extend obliquely downwards and backwards, the outer hanging lug and the inner hanging lug respectively abut against the outer side surface and the inner side surface of the armrest supporting rod, the rotating shaft sequentially penetrates through the outer hanging lug, the armrest supporting rod and the inner hanging lug from outside to inside, a locking hole is formed in the outer hanging lug, the axis center of a mounting hole penetrating through the rotating shaft on the outer hanging lug is taken as a circle center O, the distance between the axis of the mounting hole and the axis of the locking hole is taken as a radius, an intersection point of the virtual circle and the front end surface of the outer hanging lug is S1, the rear intersection point of the virtual circle and the locking hole is S2, an included angle between a line segment OS1 and the line segment OS2 is smaller than or equal to the rotating angle of the armrest support from an unfolding state to a folding state, a circular ring-shaped enclosing the locking hole is formed on the outer side surface of the outer hanging lug, and an unlocking button is inserted into the enclosing ring;
The locking unit is positioned below the rotating shaft, the unlocking button is pressed down to push the locking pin inwards to separate the locking pin from the locking hole, the locking unit is unlocked, and the handrail support can be overturned forwards and downwards relative to the handrail support rod to be close to the handrail support rod, so that the handrail support rod is changed into a folded state.
2. The wheelchair armrest structure of claim 1 wherein the locking pin is telescopically coupled to an outer side of the armrest strut.
3. The wheelchair armrest structure of claim 2, wherein an unlocking post which is aligned with the locking hole and has a cross-shaped cross section is connected to the inner side surface of the unlocking button, and when the unlocking button is pressed down, the unlocking post stretches into the locking hole to eject the locking pin inwards, so that the locking unit is unlocked.
4. The wheelchair armrest structure of claim 3 wherein the distance between the inner side of the release button and the outer side of the outer ear is greater than the depth of the locking aperture and less than the distance between the outer edge of the locking aperture and the outer side of the armrest brace.
5. The wheelchair armrest structure of claim 3, wherein the axis of the enclosure is below the axis of the locking hole, and the unlocking button is coaxially disposed with the enclosure.
6. The wheelchair armrest structure of claim 3, wherein the outer end of the enclosure is connected with a first annular flange extending inwards, an elastic barb is arranged on the outer wall of the unlocking button, and when the unlocking button is inserted into the enclosure, the elastic barb is extruded into the first annular flange and hooks the inner wall surface of the first annular flange so as to prevent the unlocking button from being separated outwards.
7. The wheelchair armrest structure of claim 2 wherein the two ends of the resilient member abut the locking pin and the bottom wall of the blind hole, respectively.
8. The wheelchair armrest structure of claim 7, wherein the armrest stay bar comprises a stay bar body extending obliquely from the back lower direction to the front upper direction and a connecting seat inserted into the upper end part of the stay bar body, the blind hole comprises a face hole formed on the outer side surface of the stay bar body and a through hole penetrating through the connecting seat, the face hole and the through hole are coaxially arranged, and the aperture of the face hole is smaller than that of the through hole.
9. The wheelchair armrest structure of claim 8 wherein the inner end of the locking pin is provided with an outwardly projecting second annular flange having an outer diameter greater than the aperture of the face, the second annular flange abutting against the inner bore of the face to prevent outward disengagement of the locking pin when the locking pin is extended outwardly.
10. The wheelchair armrest structure of claim 8, wherein the lower end of the brace body is connected to a rear wheel assembly of the wheelchair, or the lower end of the brace body is connected to a backrest bar of the wheelchair, or the lower end of the brace body is connected to a seat bar of the wheelchair, or the lower end of the brace body is connected to a bottom brace of the wheelchair.
11. The wheelchair armrest structure of claim 2, wherein the stopper is connected to a side surface of the armrest strut and located above the locking unit, the stopper has a first stopper surface and a second stopper surface, the rear end of the armrest support abuts against the first stopper surface when the armrest support is in the unfolded state, and the middle of the armrest support abuts against the second stopper surface when the armrest support is in the folded state.
12. The wheelchair armrest structure of claim 11, wherein the middle of the limiting block is connected with the rotating shaft, and the bottom of the limiting block is fixed on the inner side surface of the armrest stay bar through a locking bolt.
13. The wheelchair armrest structure of claim 12 wherein the outer end of the stopper is an annular boss having a notch and surrounding the rotational axis, the notch facing forward and upward, and the first and second stopper surfaces facing forward are formed on the outer end of the stopper.
14. The wheelchair armrest structure of any one of claims 1 to 13 further comprising an armrest coupled to an upper surface of the armrest support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211630304.7A CN115844645B (en) | 2022-12-19 | 2022-12-19 | Wheelchair armrest structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211630304.7A CN115844645B (en) | 2022-12-19 | 2022-12-19 | Wheelchair armrest structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115844645A CN115844645A (en) | 2023-03-28 |
| CN115844645B true CN115844645B (en) | 2025-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211630304.7A Active CN115844645B (en) | 2022-12-19 | 2022-12-19 | Wheelchair armrest structure |
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| CN (1) | CN115844645B (en) |
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| CN206434777U (en) * | 2017-01-24 | 2017-08-25 | 青岛钜源运动器材有限公司 | A kind of self-locking treadmill electronic watch folds fixed structure |
| CN113229664A (en) * | 2021-05-28 | 2021-08-10 | 永艺家具股份有限公司 | Armrest and seat |
| CN215652137U (en) * | 2021-09-22 | 2022-01-28 | 浙江爱司米电气有限公司 | Wheelchair armrest |
| CN219071021U (en) * | 2022-12-19 | 2023-05-26 | 苏州点铁工业设计有限公司 | Wheelchair armrest structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4276743B2 (en) * | 1999-08-10 | 2009-06-10 | タカノ株式会社 | Angle adjustable armrest |
| CN208875769U (en) * | 2018-07-11 | 2019-05-21 | 广东鸿基家具实业有限公司 | A kind of seat improving supporting plate rotational structure |
| CN209833735U (en) * | 2019-03-11 | 2019-12-24 | 育晋兴业股份有限公司 | Baby carriage frame folding device capable of being interlocked and unlocked by seat folding |
| KR20210049242A (en) * | 2019-10-24 | 2021-05-06 | 현대트랜시스 주식회사 | Foldable armrest |
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2022
- 2022-12-19 CN CN202211630304.7A patent/CN115844645B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206434777U (en) * | 2017-01-24 | 2017-08-25 | 青岛钜源运动器材有限公司 | A kind of self-locking treadmill electronic watch folds fixed structure |
| CN113229664A (en) * | 2021-05-28 | 2021-08-10 | 永艺家具股份有限公司 | Armrest and seat |
| CN215652137U (en) * | 2021-09-22 | 2022-01-28 | 浙江爱司米电气有限公司 | Wheelchair armrest |
| CN219071021U (en) * | 2022-12-19 | 2023-05-26 | 苏州点铁工业设计有限公司 | Wheelchair armrest structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115844645A (en) | 2023-03-28 |
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