CN221469472U - Connection structure of office chair back and armrest - Google Patents
Connection structure of office chair back and armrest Download PDFInfo
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- CN221469472U CN221469472U CN202420281320.8U CN202420281320U CN221469472U CN 221469472 U CN221469472 U CN 221469472U CN 202420281320 U CN202420281320 U CN 202420281320U CN 221469472 U CN221469472 U CN 221469472U
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- 230000007704 transition Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 19
- 230000037431 insertion Effects 0.000 description 19
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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Abstract
The connecting structure of the office chair back and the armrests comprises the chair back and the armrests, wherein the outer sides of the chair back are provided with first plug-in blocks which extend downwards and are protruded, and the inner sides of the armrests are provided with plug-in holes which are matched with the first plug-in blocks; the outer side of the chair back is provided with an oblique upward concave grafting concave position, and the inner side of the handrail is provided with a second grafting block which is matched with the concave grafting position; through holes into which bolts can be screwed are formed in two sides of the chair back, and threaded holes corresponding to the through holes are formed in the inner sides of the armrests; the chair back and the armrests are fixedly connected based on the fact that the first plug blocks are inserted into the plug holes, the plug concave positions are sleeved on the second plug blocks, and the bolts penetrate through the through holes and are connected to the threaded holes; in the installation, the assembler can single accomplish the equipment work, and the convenient high-efficient of equipment work improves the installation effectiveness installation back of the office chair, and when back of the chair and handrail need dismantle, also only need dismantle two bolts, can extract the handrail, and it is convenient to dismantle, and the office chair of being convenient for changes accessory and later maintenance.
Description
Technical Field
The utility model belongs to the technical field of office chair structures, and particularly relates to a connecting structure of an office chair back and armrests.
Background
The backrest structure of the existing office chair is shown in China patent with the patent application number 201920491281.3, and discloses a detachable office chair backrest structure, which comprises a first backrest frame and a second backrest frame, wherein the first backrest frame is provided with a side limiting hole and a rear connecting hole, and the second backrest frame is provided with a limiting protrusion matched with the side limiting hole and a butt joint hole matched with the rear connecting hole. The armrests of the office chair can be disassembled and assembled according to actual use requirements, the backrest and the armrests are connected and fixed mainly through bolts, and the backrest and the armrests are screwed into the bolts for fixation after corresponding threaded hole positions are required to be aligned in the connecting process. In this in-process, because bolt hole counterpoint difficulty, connecting bolt quantity is many etc. causes the installation effectiveness of office chair low, is difficult to realize single operation installation, and after the installation, it is inconvenient to dismantle, is unfavorable for changing the accessory and later maintenance scheduling problem. Accordingly, there is a need for improvements in the art to avoid the disadvantages of the prior art.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides a connecting structure of an office chair back and an armrest.
The technical scheme adopted for solving the technical problems is as follows:
the connecting structure of the office chair back and the armrests comprises the chair back and the armrests, wherein the outer sides of the chair back are provided with first plug-in blocks which extend downwards and are protruded, and the inner sides of the armrests are provided with plug-in holes which are matched with the first plug-in blocks; the outer side of the chair back is provided with an oblique upward concave grafting concave position, and the inner side of the handrail is provided with a second grafting block which is matched with the concave grafting position; through holes into which bolts can be screwed are formed in two sides of the chair back, and threaded holes corresponding to the through holes are formed in the inner sides of the armrests; the chair back and the armrests are fixedly connected based on the fact that the first plug-in blocks are inserted into the plug-in holes, the plug-in concave positions are sleeved on the second plug-in blocks, and the bolts penetrate through the through holes and are connected to the threaded holes.
In the utility model, the outer side of the chair back is provided with the positioning hole which is recessed obliquely upwards, the inner side of the armrest is provided with the positioning column which is matched with the positioning hole, and the chair back and the armrest are connected with each other in a sleeved mode based on the positioning hole and the positioning column to realize positioning connection.
In the utility model, the through hole is positioned at the inner side of the positioning hole, and the threaded hole is formed in the positioning column.
In the utility model, the cross section width of the first plug block is gradually increased from bottom to top, the inner dimension of the plug hole is larger than the outer dimension of the bottom end of the first plug block, and the inner dimension of the plug hole is smaller than the outer dimension of the top end of the first plug block.
In the utility model, the first plug-in block is of an inverted trapezoid structure.
In the utility model, the inner side of the handrail is provided with the supporting limiting plate, the inserting holes are formed in the supporting limiting plate, and the inserting holes vertically penetrate through the supporting limiting plate.
In the utility model, the insertion concave position is of a polygonal concave position structure, and the second insertion block is of a corresponding polygonal structure.
In the utility model, the corner of the inserting concave position and the corner of the second inserting block are in round corner transition.
In the utility model, the chair back is of an integrally formed structure.
In the utility model, the handrail is of an integrally formed structure.
The beneficial effects of the utility model are as follows: when the chair back and the armrests are installed, the installation positioning is realized by the cooperation of the first plug-in block and the plug-in hole, the concave plug-in position and the cooperation of the second plug-in block, at the moment, the through hole of the chair back and the threaded hole of the armrests are automatically aligned, the manual positioning of an assembler is not needed, the assembler only needs to screw the threaded hole through the through hole by using a bolt, the chair back and the armrests are fixedly connected, the assembler can finish the assembly work by a single person in the installation process, the assembly work is convenient and efficient, after the installation efficiency of the office chair is improved, the chair back and the armrests are required to be disassembled, the armrests can be pulled out by only disassembling two bolts, the chair back and the armrests are separated, the disassembly is convenient, and the office chair is convenient to replace fittings and maintain later.
Drawings
FIG. 1 is a schematic diagram of the connection between a chair back and an armrest in the present embodiment;
FIG. 2 is a schematic view of the chair back according to the present embodiment;
fig. 3 is a schematic structural view of the handrail of the present embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
It should be noted that, in the embodiment of the present utility model, directional indications (such as up, down, left, right, front, back, top, bottom, inner, outer, vertical, lateral, longitudinal, counterclockwise, clockwise, circumferential, radial, axial … …) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first" or "second" etc. in the embodiments of the present utility model, the description of "first" or "second" etc. is only for descriptive purposes, and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
As shown in fig. 1 to 3, the embodiment discloses a connection structure of an office chair back and an armrest, which comprises a chair back 1 and an armrest 2, wherein a first plug-in block 11 extending downwards is arranged on the outer side of the chair back 1, and a plug-in hole 21 matched with the first plug-in block 11 is arranged on the inner side of the armrest 2; the outer side of the chair back 1 is provided with an oblique upward concave inserting concave position 12, and the inner side of the handrail 2 is provided with a second inserting block 22 which is matched with the inserting concave position 12; through holes 13 into which bolts can be screwed are formed in the two sides of the chair back 1, and threaded holes 23 corresponding to the through holes 13 are formed in the inner side of the handrail 2; the chair back 1 and the armrest 2 are fixedly connected based on the fact that the first plug-in block 11 is inserted into the plug-in hole 21, the plug-in concave position 12 is sleeved on the second plug-in block 22, and the bolt penetrates through the through hole 13 to be connected with the threaded hole 23. When the chair back 1 and the armrest 2 are installed, the first plug-in block 11 is matched with the plug-in hole 21, the plug-in concave portion 12 is matched with the second plug-in block 22 to realize installation positioning, at the moment, the through hole 13 of the chair back 1 and the threaded hole 23 of the armrest 2 are automatically aligned, an assembling person does not need to manually position, the assembling person only needs to screw the through hole 13 to the threaded hole 23 by using a bolt, the chair back 1 and the armrest 2 are fixedly connected, the assembling person can finish the assembling work by a single person in the installation process, the assembling work is convenient and efficient, after the installation efficiency of the office chair is improved, the chair back 1 and the armrest 2 are required to be disassembled, and only two bolts are required to be disassembled to pull out the armrest 2, so that the chair back 1 and the armrest 2 are separated, the assembling is convenient, and the office chair is convenient to replace fittings and maintain later.
In this embodiment, in order to further improve the alignment accuracy of the through hole 13 and the threaded hole 23 when the chair back 1 and the armrest 2 are assembled, the outer side of the chair back 1 is provided with a positioning hole 14 recessed obliquely and upwards, the inner side of the armrest 2 is provided with a positioning column 24 adapted to the positioning hole 14, and the chair back 1 and the armrest 2 are connected with each other in a sleeved mode on the positioning column 24 based on the positioning hole 14. The through hole 13 is located at the inner side of the positioning hole 14, the threaded hole 23 is formed in the positioning column 24, and when the seat back 1 and the armrest 2 are connected in a matched manner, the through hole 13 and the threaded hole 23 are positioned accurately, so that an assembler can screw down the bolt rapidly, and the seat back 1 and the armrest 2 are fixedly connected.
In this embodiment, in order to facilitate the insertion of the first plug 11 into the insertion hole 21 for the mating connection, the cross-sectional width of the first plug 11 gradually increases from bottom to top, the inner dimension of the insertion hole 21 is greater than the outer dimension of the bottom end of the first plug 11, and the inner dimension of the insertion hole 21 is smaller than the outer dimension of the top end of the first plug 11, so that the bottom of the first plug 11 can be easily inserted into the insertion hole 21, and as the first plug 11 goes deep, the first plug 11 gradually tightens with the insertion hole 21. Preferably, the first plugging block 11 has an inverted trapezoid structure. The inner side of the handrail 2 is provided with a supporting limiting plate 25, the inserting holes 21 are formed in the supporting limiting plate 25, and the inserting holes 21 vertically penetrate through the supporting limiting plate 25.
In this embodiment, the insertion concave portion 12 is of a polygonal concave structure, and correspondingly, the second insertion block 22 is also of a corresponding polygonal structure, so that when the insertion concave portion 12 is matched with the second insertion block 22, no rotation occurs between the chair back 1 and the armrest 2, positioning is better achieved, preferably, corners of the insertion concave portion 12 and the second insertion block 22 are rounded transition, so that the insertion concave portion 12 and the second insertion block 22 are smoother when matched, and insertion matching of the insertion concave portion and the second insertion block is facilitated.
In this embodiment, the seat back 1 is an integrally formed structure, and the armrest 2 is an integrally formed structure.
The foregoing is only a preferred embodiment of the present utility model, and all technical solutions for achieving the object of the present utility model by substantially the same means are included in the scope of the present utility model.
Claims (10)
1. A connection structure of office chair back and handrail, its characterized in that: the novel chair comprises a chair back (1) and armrests (2), wherein first plug-in blocks (11) which extend downwards are arranged on the outer side of the chair back (1), and plug-in holes (21) which are matched with the first plug-in blocks (11) are formed in the inner side of the armrests (2); the outer side of the chair back (1) is provided with an oblique upwards concave inserting concave position (12), and the inner side of the handrail (2) is provided with a second inserting block (22) which is matched with the inserting concave position (12); through holes (13) into which bolts can be screwed are formed in two sides of the chair back (1), and threaded holes (23) corresponding to the through holes (13) are formed in the inner side of the handrail (2); the chair back (1) and the armrest (2) are fixedly connected based on the fact that the first plug-in block (11) is inserted into the plug-in hole (21), the plug-in concave position (12) is sleeved on the second plug-in block (22) and the bolt penetrates through the through hole (13) to be connected with the threaded hole (23).
2. The connection structure of an office chair back and an armrest according to claim 1, wherein: the chair comprises a chair back (1), wherein the outer side of the chair back (1) is provided with a positioning hole (14) which is recessed obliquely upwards, the inner side of an armrest (2) is provided with a positioning column (24) which is matched with the positioning hole (14), and the chair back (1) and the armrest (2) are connected with each other in a sleeved mode on the positioning column (24) based on the positioning hole (14) in a positioning mode.
3. The connection structure of an office chair back and an armrest according to claim 2, wherein: the through hole (13) is positioned at the inner side of the positioning hole (14), and the threaded hole (23) is formed in the positioning column (24).
4. A connection structure of an office chair back and an armrest according to any one of claims 1-3, wherein: the cross section width of the first plug-in block (11) is gradually increased from bottom to top, the inner size of the plug-in hole (21) is larger than the outer size of the bottom end of the first plug-in block (11), and the inner size of the plug-in hole (21) is smaller than the outer size of the top end of the first plug-in block (11).
5. The connection structure of an office chair back and an armrest according to claim 4, wherein: the first plug-in block (11) is of an inverted trapezoid structure.
6. A connection structure of an office chair back and an armrest according to any one of claims 1-3, wherein: the inner side of the handrail (2) is provided with a supporting limiting plate (25), the inserting holes (21) are formed in the supporting limiting plate (25), and the inserting holes (21) vertically penetrate through the supporting limiting plate (25).
7. A connection structure of an office chair back and an armrest according to any one of claims 1-3, wherein: the inserting concave position (12) is of a polygonal concave position structure, and the second inserting block (22) is of a corresponding polygonal structure.
8. The office chair back and armrest connection structure of claim 7, wherein: the corner of the inserting concave position (12) and the corner of the second inserting block (22) are in round corner transition.
9. A connection structure of an office chair back and an armrest according to any one of claims 1-3, wherein: the chair back (1) is of an integrated structure.
10. A connection structure of an office chair back and an armrest according to any one of claims 1-3, wherein: the handrail (2) is of an integrally formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420281320.8U CN221469472U (en) | 2024-02-05 | 2024-02-05 | Connection structure of office chair back and armrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420281320.8U CN221469472U (en) | 2024-02-05 | 2024-02-05 | Connection structure of office chair back and armrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221469472U true CN221469472U (en) | 2024-08-06 |
Family
ID=92358444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420281320.8U Active CN221469472U (en) | 2024-02-05 | 2024-02-05 | Connection structure of office chair back and armrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221469472U (en) |
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2024
- 2024-02-05 CN CN202420281320.8U patent/CN221469472U/en active Active
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