CN203435975U - Chair with backrest height convenient to adjust - Google Patents
Chair with backrest height convenient to adjust Download PDFInfo
- Publication number
- CN203435975U CN203435975U CN201320481038.6U CN201320481038U CN203435975U CN 203435975 U CN203435975 U CN 203435975U CN 201320481038 U CN201320481038 U CN 201320481038U CN 203435975 U CN203435975 U CN 203435975U
- Authority
- CN
- China
- Prior art keywords
- backrest
- vertical tube
- branching rod
- chair
- seat board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The utility model discloses a chair with the backrest height convenient to adjust. The chair comprises a chair plate, a left front leg, a right front leg, a left rear leg, a right rear leg and a backrest. The backrest comprises a loose plate, a left supporting rod, a right supporting rod and a positioning rod. The height of the backrest can be conveniently adjusted according to the requirement. The chair belongs to the field of furniture.
Description
Technical field
A convenient chair of adjusting backrest height, relates to field of furniture, relates in particular to a kind of tool.
Background technology
Traditional back height is inconvenient to adjust at present, narrow application range.Somebody likes backrest high, and somebody likes backrest short, and same person needs backrest higher sometimes, sometimes needs again backrest shorter.Traditional chair can not meet these individual requirements.
Summary of the invention
The object of this invention is to provide a kind of convenient chair of adjusting backrest height simple in structure.
A convenient chair of adjusting backrest height, is comprised of seat, left front leg, RAT, left back leg, right rear leg and backrest.Left front leg, RAT, left back leg and right rear leg are fixed on respectively the place, four angles of seat, and are all positioned at seat below, play a supportive role.The angle of backrest and seat board is equal to or slightly greater than 90 °.
Backrest is comprised of portable plate, left branching rod, right pole and backstay; Portable plate consists of cross tube, lower transverse tubule, left vertical tube, right vertical tube and backup plate; Left branching rod and right pole are vertically fixed on the back edge top of seat board; Left vertical tube and right vertical tube are enclosed within respectively on left branching rod and right pole; Backrest moves up and down to adjust highly by portable plate; Left riser upper end sealing, its vertical bore openings is down; Left branching rod has three lateral penetration holes from top to bottom; The lower end of left vertical tube have one with the endoporus sizableness of lower transverse tubule and coaxial lateral penetration hole so that backstay can be horizontally through smoothly, in order to geocoded activity plate.Right pole is identical with left branching rod size and structure; Right vertical tube is also identical with left stack dimensions and structure.
A kind of convenient advantage of adjusting the chair of backrest height of the present invention is: simple in structure, people is sitting on this chair and feels more comfortable, because this chair can be according to the convenient height of adjusting backrest of different human needs.
Accompanying drawing explanation
Fig. 1 is a kind of convenient schematic diagram of adjusting the chair of backrest height of the present invention;
Fig. 2 be a kind of convenient chair of adjusting backrest height of the present invention amplification the schematic diagram of backrest when extreme higher position.
In figure: 1 is seat, 21 is left front leg, 22 is RAT, 23 is left back leg, 24 is right rear leg, 3 is backrest, 31 is portable plate, 311 is cross tube, 312 is lower transverse tubule, 313 is left vertical tube, 314 is right vertical tube, 315 is backup plate, 32 is left branching rod, 321 is the axis of the upper horizontal through hole of left branching rod 32, 322 is the axis in the middle lateral penetration hole of left branching rod 32, 323 is the axis of the lower horizontal through hole of left branching rod 32, 33 is right pole, 331 is the axis of the upper horizontal through hole of right pole 33, 332 is the axis in the middle lateral penetration hole of right pole 33, 333 is the axis of the lower horizontal through hole of right pole 33, 34 is backstay.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is illustrated: with reference to accompanying drawing 1 and accompanying drawing 2, a kind of convenient chair of adjusting backrest height, is comprised of seat 1, left front leg 21, RAT 22, left back leg 23, right rear leg 24 and backrest 3.Seat 1 is horizontally disposed.Left front leg 21, RAT 22, left back leg 23 and right rear leg 24 are fixed on respectively the place, four angles of seat 1, and are all positioned at seat 1 below, play a supportive role.Backrest 3 is positioned at the back edge top of seat 1.Backrest 3 is equal to or slightly greater than 90 ° with the angle of seat board 1.
A kind of convenient chair of adjusting backrest height of the present invention is to adjust like this backrest height:
First portable plate 31 is enclosed within on left branching rod 32 and right pole 33 from top to bottom, be that left branching rod 32 and right pole 33 are inserted into respectively left vertical tube 313 and right vertical tube 314, and make lower transverse tubule 312 endoporus coaxial with the lower horizontal through hole of left branching rod 32 and right pole 33, then backstay 34 is inserted from left to right to the lateral penetration hole of left vertical tube 313, the lower horizontal through hole of left branching rod 32, lower transverse tubule 312 endoporus, the lateral penetration hole of right vertical tube 314 and the lower horizontal through hole of right pole 33, now portable plate 31 is fixed and in extreme lower position, be that backrest 3 is in extreme lower position, now the total height of this chair is the shortest state.
In order to promote the backrest height of this chair, total height at above-mentioned this chair is on the basis of the shortest state, backstay 34 is pulled out completely, portable plate 31 is improved and makes lower transverse tubule 312 endoporus coaxial with the middle lateral penetration hole of left branching rod 32 and right pole 33, then backstay 34 is inserted from left to right to the lateral penetration hole of left vertical tube 313, the middle lateral penetration hole of left branching rod 32, lower transverse tubule 312 endoporus, the middle lateral penetration hole of the lateral penetration hole of right vertical tube 314 and right pole 33, portable plate 31 height and position that mediates now, it is backrest 3 height and position that mediates, now the total height of this chair is intermediateness.
The backrest height of this chair can also be toward raising, backstay 34 is pulled out completely, continuation up improves portable plate 31, make lower transverse tubule 312 endoporus coaxial with the upper horizontal through hole of left branching rod 32 and right pole 33, then backstay 34 is inserted from left to right to the lateral penetration hole of left vertical tube 313, the upper horizontal through hole of left branching rod 32, lower transverse tubule 312 endoporus, the lateral penetration hole of right vertical tube 314 and the upper horizontal through hole of right pole 33, now portable plate 31 is in extreme higher position, be backrest 3 in extreme higher position, now the total height of this chair is high state.
If the backrest height of this chair will be adjusted to low level from a high position, if the total height at above-mentioned this chair is on the basis of high state, after backstay 34 is pulled out completely, portable plate 31 is dropped to the gear needing, then with backstay 34 positioning instants, can realize backrest height and be adjusted to low level from a high position.
Claims (2)
1. a convenient chair of adjusting backrest height, is characterized in that, seat board (1), left front leg (21), RAT (22), left back leg (23), right rear leg (24), backrest (3), consists of; Left front leg (21), RAT (22), left back leg (23) and (24) four legs of right rear leg are arranged in respectively the place, four angles of seat board (1), and are all positioned at seat board (1) below; Backrest (3) is positioned at the back edge top of seat board (1); Backrest (3) is comprised of portable plate (31), left branching rod (32), right pole (33) and backstay (34); Portable plate (31) consists of cross tube (311), lower transverse tubule (312), left vertical tube (313), right vertical tube (314) and backup plate (315); Left branching rod (32) and right pole (33) are vertically fixed on the back edge top of seat board (1); Left vertical tube (313) and right vertical tube (314) are enclosed within respectively on left branching rod (32) and right pole (33); Left vertical tube (313) upper end closed, its vertical bore openings is down; Left branching rod (32) has three lateral penetration holes from top to bottom, the lower end of left vertical tube (313) have one with the endoporus sizableness of lower transverse tubule (312) and coaxial lateral penetration hole, so that backstay (34) can be horizontally through smoothly, in order to geocoded activity plate (31); Right pole (33) is identical with left branching rod (32) size and structure; Right vertical tube (314) is also identical with left vertical tube (313) size and structure.
2. a kind of convenient chair of adjusting backrest height according to claim 1, is characterized in that, backrest (3) is equal to or slightly greater than 90 ° with the angle of seat board (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320481038.6U CN203435975U (en) | 2013-07-30 | 2013-07-30 | Chair with backrest height convenient to adjust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320481038.6U CN203435975U (en) | 2013-07-30 | 2013-07-30 | Chair with backrest height convenient to adjust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203435975U true CN203435975U (en) | 2014-02-19 |
Family
ID=50087056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320481038.6U Expired - Fee Related CN203435975U (en) | 2013-07-30 | 2013-07-30 | Chair with backrest height convenient to adjust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203435975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103385615A (en) * | 2013-07-30 | 2013-11-13 | 刘自拔 | Chair with backrest height convenient to adjust |
-
2013
- 2013-07-30 CN CN201320481038.6U patent/CN203435975U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103385615A (en) * | 2013-07-30 | 2013-11-13 | 刘自拔 | Chair with backrest height convenient to adjust |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20170730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |