CN211633968U - Armrest structure and wheelchair - Google Patents
Armrest structure and wheelchair Download PDFInfo
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- CN211633968U CN211633968U CN201922496514.1U CN201922496514U CN211633968U CN 211633968 U CN211633968 U CN 211633968U CN 201922496514 U CN201922496514 U CN 201922496514U CN 211633968 U CN211633968 U CN 211633968U
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- armrest
- backrest
- component
- assembly
- handrail
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Abstract
The embodiment of the application provides an armrest structure and a wheelchair, which comprise an armrest component and a backrest component; the first surface of the armrest component is attached to the first surface of the backrest component, and the first surface of the armrest component forms a rotating shaft and at least one armrest limiting part; the backrest component comprises a shaft hole matched with the rotating shaft and at least one backrest limiting part matched with the armrest limiting part, and the backrest limiting part is used for being in contact with the armrest limiting part when an included angle between the armrest component and the backrest component is a preset angle. According to the scheme, on the premise that the collision probability between the armrest and other objects is not increased, the armrest can rotate relative to the backrest, so that the position or the posture of the armrest can be adjusted when a user uses the seat, and the user experience is improved.
Description
Technical Field
The embodiment of the application relates to the technical field of machinery, in particular to an armrest structure and a wheelchair.
Background
In recent years, with the improvement of living standard of people, various chairs, which usually include armrests and a backrest, are frequently appeared in daily life.
In the related art, in order to reduce the possibility that the armrest collides with another object when in use, the armrest is generally fixed on the seat, and the position or posture of the armrest cannot be adjusted for the user using the seat, thereby impairing the user experience.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide an armrest structure for overcoming the defect that the position or posture of the armrest can not be adjusted without increasing the probability of collision between the armrest and other objects in the prior art.
The embodiment of the application provides an armrest structure, which comprises an armrest component and a backrest component;
the first surface of the armrest component is attached to the first surface of the backrest component, and the first surface of the armrest component forms a rotating shaft and at least one armrest limiting part;
the backrest component comprises a shaft hole matched with the rotating shaft and at least one backrest limiting part matched with the armrest limiting part, and the backrest limiting part is used for being in contact with the armrest limiting part when an included angle between the armrest component and the backrest component is a preset angle.
Optionally, in an embodiment of the present application, the armrest structure further comprises a locking assembly, an outer diameter of the locking assembly being larger than an inner diameter of the shaft hole;
the pivot passes the shaft hole and projects the second face of back subassembly, and locking Assembly cup joints in the pivot and laminates with the second face of back subassembly.
Alternatively, in one embodiment of the present application, the locking assembly is a nut and the spindle surface is formed with threads that mate with threads on an inner wall of the nut.
Optionally, in an embodiment of the present application, the armrest structure further includes a shaft sleeve, and the shaft sleeve is disposed between the rotating shaft and the shaft hole.
Optionally, in an embodiment of the present application, the backrest assembly includes a backrest bracket and a limit plate fixed on a first face of the backrest bracket;
the backrest support comprises a backrest support shaft hole matched with the rotating shaft, and a first surface of the backrest support is attached to a second surface of the limiting plate;
the limiting plate includes the limiting plate shaft hole that matches with the pivot, and the first face of limiting plate and the first face laminating of handrail subassembly, the spacing portion of back form in the limiting plate lateral wall.
Optionally, in an embodiment of the present application, the armrest structure further includes a limiting plate fixing assembly, and the limiting plate is connected to the backrest bracket through the limiting plate fixing assembly.
Optionally, in an embodiment of the present application, the first surface of the limiting plate forms an elastic component groove, the armrest structure further includes an elastic component disposed in the elastic component groove, one end of the elastic component is attached to the bottom surface of the elastic component groove, and the other end of the elastic component is attached to the first surface of the armrest component.
Optionally, in one embodiment of the present application, the armrest structure further comprises a damping pad disposed within the resilient assembly groove and between the first face of the armrest assembly and the resilient assembly.
Optionally, in an embodiment of the present application, the elastic assembly is comprised of at least one wave spring.
Embodiments of the present application provide a wheelchair comprising an armrest structure according to any of the above embodiments.
The armrest structure provided in the embodiment of the application comprises an armrest component and a backrest component; the first surface of the armrest component is attached to the first surface of the backrest component, and the first surface of the armrest component forms a rotating shaft and at least one armrest limiting part; the backrest component comprises a shaft hole matched with the rotating shaft and at least one backrest limiting part matched with the armrest limiting part, and the backrest limiting part is used for being in contact with the armrest limiting part when an included angle between the armrest component and the backrest component is a preset angle. Wherein, because the armrest assembly can rotate relative to the backrest assembly, the armrest body connected to the armrest assembly can rotate relative to the backrest body connected to the backrest assembly; meanwhile, the backrest limiting part can be in contact with the armrest limiting part when the included angle between the armrest component and the backrest component is a preset angle, so that the armrest component can be limited to be smaller than or equal to the preset angle relative to the rotation angle of the backrest component by the backrest limiting part and the armrest limiting part, and the probability that the armrest body collides with other objects due to the fact that the armrest body rotates relative to the backrest body in a too large angle is avoided. Therefore, the armrest can rotate relative to the backrest on the premise of not improving the collision probability between the armrest and other objects, so that the position or the posture of the armrest can be adjusted when a user uses the chair, and the user experience is improved.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic longitudinal cross-sectional view of a handrail structure provided in an embodiment of the present application;
fig. 2 is a schematic transverse cross-sectional view of a handrail structure provided in an embodiment of the present application;
fig. 3 is a schematic structural view of a handrail structure provided in an embodiment of the present application;
fig. 4 is a schematic structural view of a handrail structure provided in an embodiment of the present application;
fig. 5 is a schematic structural view of a handrail structure provided in an embodiment of the present application;
fig. 6 is a schematic structural view of an armrest structure according to an embodiment of the present application.
Detailed Description
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that the terms "first," "second," and the like as used in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The embodiment of the present invention will be further described with reference to the accompanying drawings.
Example one
In an embodiment of the present invention, as shown in fig. 1 and fig. 2, fig. 1 is a schematic longitudinal cross-sectional view of an armrest structure provided in an embodiment of the present invention, and fig. 2 is a schematic transverse cross-sectional view of an armrest structure provided in an embodiment of the present invention. The armrest structure comprises an armrest component 101 and a backrest component 102, a first surface of the armrest component 101 is attached to a first surface of the backrest component 102, a rotating shaft 103 and at least one armrest limiting portion 104 are formed on the first surface of the armrest component 101, the backrest component 102 comprises a shaft hole 105 matched with the rotating shaft 103 and at least one backrest limiting portion 106 matched with the armrest limiting portion 104, and the backrest limiting portion 106 is used for contacting the armrest limiting portion 104 when an included angle between the armrest component 101 and the backrest component 102 belongs to a preset angle.
The handrail structure can comprise a handrail limiting part and also can comprise a plurality of handrail limiting parts; similarly, the armrest structure may include one backrest limiting portion, or may include a plurality of backrest limiting portions.
Preferably, as shown in fig. 1 and 2, the armrest structure includes 2 armrest limiting parts 104 and 2 backrest limiting parts 106.
When the first surface of the armrest assembly is jointed with the first surface of the backrest assembly, the rotating shaft formed on the first surface of the armrest assembly is inserted into the shaft hole of the backrest assembly, so that the armrest assembly can rotate relative to the backrest assembly. Meanwhile, when the armrest component rotates to a certain position relative to the backrest component, and an included angle between the armrest component and the backrest component is a preset angle, the armrest limiting part formed on the first surface of the armrest component is in contact with the backrest limiting part on the backrest component, so that the armrest component cannot continuously rotate relative to the backrest component, the purpose of limiting the rotation angle of the armrest component relative to the backrest component is achieved, and the purpose of limiting the rotation angle of the armrest component relative to the backrest component is ensured, namely, the angle range of limiting the armrest component to rotate relative to the backrest component is smaller than or equal to the preset angle range. For example, the preset angle may be 100 degrees, i.e., the angle range that ensures that the armrest assembly is restricted from rotating relative to the backrest assembly is 0 to 100 degrees.
The armrest structure provided in the embodiment of the application comprises an armrest component and a backrest component; the first surface of the armrest component is attached to the first surface of the backrest component, and the first surface of the armrest component forms a rotating shaft and at least one armrest limiting part; the backrest component comprises a shaft hole matched with the rotating shaft and at least one backrest limiting part matched with the armrest limiting part, and the backrest limiting part is used for being in contact with the armrest limiting part when an included angle between the armrest component and the backrest component is a preset angle. Wherein, because the armrest assembly can rotate relative to the backrest assembly, the armrest body connected to the armrest assembly can rotate relative to the backrest body connected to the backrest assembly; meanwhile, the backrest limiting part can be in contact with the armrest limiting part when the included angle between the armrest component and the backrest component is a preset angle, so that the armrest component can be limited to be smaller than or equal to the preset angle relative to the rotation angle of the backrest component by the backrest limiting part and the armrest limiting part, and the probability that the armrest body collides with other objects due to the fact that the armrest body rotates relative to the backrest body in a too large angle is avoided. Therefore, the armrest can rotate relative to the backrest on the premise of not improving the collision probability between the armrest and other objects, so that the position or the posture of the armrest can be adjusted when a user uses the chair, and the user experience is improved.
Alternatively, as shown in fig. 3 to 6, fig. 3 is a schematic structural view of an armrest structure provided in an embodiment of the present application, fig. 4 is a schematic structural view of an armrest structure provided in an embodiment of the present application, fig. 5 is a schematic structural view of an armrest structure provided in an embodiment of the present application, and fig. 6 is a schematic structural view of an armrest structure provided in an embodiment of the present application, the armrest structure further includes a locking assembly 107, an outer diameter of the locking assembly 107 is greater than an inner diameter of the shaft hole 105, the shaft 103 passes through the shaft hole 105 and protrudes out of the second surface of the backrest assembly 102, and the locking assembly 107 is sleeved on the shaft 103 and is attached to the second surface of the backrest assembly 102.
Wherein, the locking component can be a nut, and the surface of the rotating shaft can form a thread matched with the thread on the inner wall of the nut.
Through setting up locking Assembly, can avoid handrail subassembly and back subassembly pine to take off under the relative back subassembly rotatory prerequisite of handrail subassembly, reduce the probability that handrail structure broke down, improve user experience.
Optionally, as shown in fig. 3 to 6, in an embodiment of the present application, the armrest structure further includes a bushing 108, and the bushing 108 is disposed between the rotating shaft 103 and the shaft hole 105.
Through between pivot and shaft hole, can avoid pivot or shaft hole to take place wearing and tearing because of the rotation under the prerequisite that does not influence the relative back subassembly of handrail subassembly to avoid leading to the handrail subassembly can't be rotatory relative to the back subassembly because of pivot or shaft hole wearing and tearing, consequently can reduce the probability that the handrail structure broke down, improved user experience.
Optionally, as shown in fig. 3 to 6, in an embodiment of the present application, the backrest assembly 102 includes a backrest bracket 112 and a limit plate 122 fixed on a first surface of the backrest bracket 112, the backrest bracket 112 includes a backrest bracket axle hole 1121 matched with the rotating shaft 103, the first surface of the backrest bracket 112 is attached to a second surface of the limit plate 122, the limit plate 122 includes a limit plate axle hole 1221 matched with the rotating shaft 103, the first surface of the limit plate 122 is attached to the first surface of the armrest assembly 101, and the backrest limit portion 106 is formed on a side wall of the limit plate 122.
Constitute by back support and limiting plate through making the back subassembly to form the limiting plate shaft hole on the limiting plate, can reduce the structure complexity of single part under the prerequisite that does not influence handrail components normal function, thereby reduce the processing degree of difficulty, reduce manufacturing cost.
Optionally, as shown in fig. 3 to 6, in an embodiment of the present application, the armrest structure further includes a limit plate fixing assembly 1222, and the limit plate 122 is connected to the backrest bracket 112 through the limit plate fixing assembly 1222.
Preferably, the limiting plate fixing component can be a bolt. Of course, the fixing component of the limiting plate can also be other fixing components, such as a buckle and the like.
Alternatively, as shown in fig. 3 to 6, in an embodiment of the present application, the first surface of the limiting plate 122 forms an elastic member groove 1223, the handrail structure further includes an elastic member 109 disposed in the elastic member groove 1223, one end of the elastic member 109 is attached to a bottom surface of the elastic member groove 1223, and the other end of the elastic member 109 is attached to the first surface of the handrail member 101.
Preferably, the elastic member may be composed of at least one wave spring. For example, the elastic member may be composed of 8 wave springs.
Through the first face formation elastic component recess at the limiting plate to set up elastic component in the elastic component recess, can increase the damping between limiting plate and the handrail subassembly through elastic component, thereby avoid handrail subassembly spontaneous rotation under the prerequisite of no external force intervention, make the user need not frequently to adjust handrail subassembly's rotation angle, thereby improved user experience.
Optionally, as shown in fig. 3-6, in one embodiment of the present application, the armrest structure further includes a dampening shoe 110 disposed within the resilient assembly recess 1223 and between the first face of the armrest assembly 101 and the resilient assembly 109.
Through set up the damping pad between handrail components's first face and elastic component, can avoid elastic component wearing and tearing to appear, avoid leading to handrail components to break down because of elastic component wearing and tearing, reduced handrail components's fault rate, improved user experience.
Embodiments of the present application provide a wheelchair comprising an armrest structure according to any of the above embodiments.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. An armrest structure, comprising an armrest assembly and a backrest assembly;
the first surface of the armrest component is attached to the first surface of the backrest component, and the first surface of the armrest component forms a rotating shaft and at least one armrest limiting part;
the backrest component comprises a shaft hole matched with the rotating shaft and at least one backrest limiting part matched with the armrest limiting part, and the backrest limiting part is used for contacting the armrest limiting part when an included angle between the armrest component and the backrest component belongs to a preset angle.
2. The handrail structure of claim 1, further comprising a locking assembly having an outer diameter greater than an inner diameter of the shaft bore;
the pivot passes the shaft hole just protrudes the second face of back subassembly, locking Assembly cup joints in the pivot and with the laminating of the second face of back subassembly.
3. The handrail construction of claim 2, wherein the locking assembly is a nut and the spindle surface is threaded to mate with threads on an inner wall of the nut.
4. The armrest structure of claim 1 further comprising a bushing disposed between the shaft and the shaft aperture.
5. The armrest structure according to any one of claims 1 to 4, wherein the backrest assembly includes a backrest support and a limit plate fixed on a first face of the backrest support;
the backrest support comprises a backrest support shaft hole matched with the rotating shaft, and a first surface of the backrest support is attached to a second surface of the limiting plate;
the limiting plate comprises a limiting plate shaft hole matched with the rotating shaft, the first surface of the limiting plate is attached to the first surface of the armrest assembly, and the backrest limiting portion is formed on the side wall of the limiting plate.
6. The armrest structure of claim 5, further comprising a limit plate fixing assembly, wherein the limit plate is connected to the backrest bracket through the limit plate fixing assembly.
7. The handrail structure of claim 5, wherein the first surface of the limiting plate forms an elastic element groove, the handrail structure further comprising an elastic element disposed in the elastic element groove, one end of the elastic element being attached to a bottom surface of the elastic element groove, and the other end of the elastic element being attached to the first surface of the handrail element.
8. The handrail construction of claim 7, further comprising a damping pad disposed within the resilient assembly groove and between the first face of the handrail assembly and the resilient assembly.
9. The handrail structure of claim 7, wherein the resilient assembly comprises at least one wave spring.
10. A wheelchair comprising an armrest structure according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922496514.1U CN211633968U (en) | 2019-12-31 | 2019-12-31 | Armrest structure and wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922496514.1U CN211633968U (en) | 2019-12-31 | 2019-12-31 | Armrest structure and wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211633968U true CN211633968U (en) | 2020-10-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922496514.1U Active CN211633968U (en) | 2019-12-31 | 2019-12-31 | Armrest structure and wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211633968U (en) |
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2019
- 2019-12-31 CN CN201922496514.1U patent/CN211633968U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100089 building 01, South 30, dongxindu east station, Qinghe Xisanqi, Haidian District, Beijing Patentee after: Beijing Wujiang Technology Co.,Ltd. Address before: 100089 building 01, South 30, dongxindu east station, Qinghe Xisanqi, Haidian District, Beijing Patentee before: BEIJING DELTA-ROBOTICS TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220214 Address after: 239400 No. 116, qicang Road, Mingguang Industrial Park, Chuzhou City, Anhui Province Patentee after: Anhui jinbaihe Medical Equipment Co.,Ltd. Address before: 100089 building 01, South 30, dongxindu east station, Qinghe Xisanqi, Haidian District, Beijing Patentee before: Beijing Wujiang Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |