CN220898315U - Angle-adjustable seat backrest and seat - Google Patents
Angle-adjustable seat backrest and seat Download PDFInfo
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- CN220898315U CN220898315U CN202323051676.7U CN202323051676U CN220898315U CN 220898315 U CN220898315 U CN 220898315U CN 202323051676 U CN202323051676 U CN 202323051676U CN 220898315 U CN220898315 U CN 220898315U
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- angle
- hinge
- backrest
- hinge plate
- adjusting mechanism
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- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000007792 addition Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model relates to an angle-adjustable seat back and a seat. The backrest adjusting mechanism solves the technical problems that a backrest adjusting mechanism in the prior art is complex in structure and inconvenient to operate. The angle-adjustable seat backrest comprises a backrest support, wherein the top of the backrest support is sequentially hinged to the bottom of the backrest support to be connected with a hinge plate and an angle adjusting mechanism, the hinge point of the hinge plate and the hinge point of the angle adjusting mechanism are protruded forwards to form a sharp angle structure, the angle adjusting mechanism pushes and pulls the hinge plate to rotate around the hinge point at the top, a height adjusting mechanism is arranged on the hinge plate, and the height adjusting mechanism is connected with the backrest. The utility model has the advantages that: simple structure, can easily change back position and inclination.
Description
Technical Field
The utility model belongs to the technical field of seat backs, and relates to an angle-adjustable seat back and a seat.
Background
The existing chair has the disadvantages that the backrest is generally of an integral frame structure, the backrest cannot be adjusted in angle, the backrest position is always in situ, the practicability is poor, and an adjusting mechanism is additionally arranged on the existing part of the chair, so that the position and the angle of the backrest of the chair can be adjusted, but the device is complex in structure and inconvenient to maintain and operate.
For example, chinese patent CN115227059a discloses a chair back assembly and swivel chair with adjustable lower back and upper back. It solves the defects of unreasonable design in the prior art. The chair back component capable of adjusting the lower back and the upper back comprises a cushion connecting arm; the lower end of the rear supporting piece is hinged to the upper end of the cushion connecting arm; a front upper back frame located at the front side of the rear support; the upper end of the front upper backrest frame is hinged to the upper end of the rear supporting piece, and the lower end of the front upper backrest frame is connected to the front side surface of the upper end of the cushion connecting arm through an elastic block; the lower end of the front lower backrest frame is hinged to the front side of the cushion connecting arm, the hinge point is positioned below the elastic block, the upper end of the front lower backrest frame extends upwards to be free, and the upper end of the front lower backrest frame is positioned on the front side of the lower end of the front upper backrest frame; the angle adjusting locking control mechanism is arranged between the lower end of the front lower backrest frame and the cushion connecting arm. The application has the advantages that: and angle locking and self-adaptive passive adjustment are realized.
Although the prior patent has the technical advantages of realizing the adjustment of the position and the angle of the backrest of the chair, the scheme also has the following technical problems: the adjusting mechanism has a complex structure and is inconvenient to maintain and operate.
Disclosure of utility model
The utility model aims to solve the problems in the prior art and provide an angle-adjustable seat back and a seat which can solve the technical problems.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The angle-adjustable seat backrest comprises a backrest support, wherein the top of the backrest support is sequentially hinged to the bottom of the backrest support to be connected with a hinge plate and an angle adjusting mechanism, the hinge point of the hinge plate and the hinge point of the angle adjusting mechanism are protruded forwards to form a sharp angle structure, the angle adjusting mechanism pushes and pulls the hinge plate to rotate around the hinge point at the top, a height adjusting mechanism is arranged on the hinge plate, and the height adjusting mechanism is connected with the backrest.
In the above angle-adjustable seat back, the middle of the back support is hollowed out, the top of the back support is provided with a hinge plate, the hinge plate is hinged with the hinge plate, the bottom of the back support is provided with a hinge block, and the hinge block is hinged with the angle adjusting mechanism.
In the above angle-adjustable seat back, the angle adjusting mechanism comprises an air rod, the bottom of the air rod is hinged with the hinge block, and the telescopic rod at the end part of the air rod is hinged with the hinge plate.
In the above angle-adjustable seat back, the bottom end of the hinge plate is tilted outwards to form a hinge part, a through hole is formed in the hinge part, the through hole is connected with the telescopic rod through a bolt, a plurality of key grooves are formed in the middle of the hinge plate, and grooves are formed in the hinge plate.
In the above angle-adjustable seat back, the height adjusting mechanism comprises the groove, a plurality of inclined grooves recessed toward two sides are formed in the inner walls of two sides of the groove, and a sliding block is arranged in the groove to slide.
In the above angle-adjustable seat back, the two sides of the sliding block are respectively provided with the supporting legs inclining outwards towards the corresponding sides, the two supporting legs are connected by springs, the supporting legs are clamped in the inclined grooves, the sliding block is provided with the through holes, and the through holes are internally connected with the back by the penetrating bolts.
In the above angle-adjustable seat back, a plurality of through holes corresponding to the key grooves are formed in the back, and the through holes are internally penetrated with the corresponding key grooves in a bolt connection manner.
The application also provides a seat, which comprises the angle-adjustable seat backrest, wherein the bottom edge of the backrest bracket is inserted into the seat and is fixed by a plurality of bolts in a penetrating way.
Compared with the prior art, the application has the advantages that:
1) The telescopic rod is pushed to move by the air rod, so that the hinge plate angle is inclined, and the adjustment of the angle of the backrest of the chair is realized.
2) The height of the seat backrest is adjusted by adjusting the position of the sliding block in the groove.
3) The whole structure is simple, the installation and the disassembly are convenient, and the operation is convenient.
Drawings
Fig. 1 is a structural view of an angle-adjustable seat back provided by the present utility model.
Fig. 2 is a structural view of a portion of an angle-adjustable seat back height adjustment mechanism provided by the present utility model.
Fig. 3 is a structural view of an angle-adjustable seat back angle adjustment mechanism provided by the present utility model.
FIG. 4 is a block diagram of an angle adjustable seat back hinge plate provided by the present utility model.
In the figure, a backrest bracket 1, a hinge plate 10, a hinge block 11, a hinge plate 2, a hinge part 20, a key groove 21, a groove 22, an inclined groove 23, an angle adjusting mechanism 3, an air bar 30, a telescopic bar 31, a height adjusting mechanism 4, a slide block 40, a support leg 41 and a backrest 5.
Detailed Description
The following are specific embodiments of the utility model and the technical solutions of the utility model will be further described with reference to the accompanying drawings, but the utility model is not limited to these embodiments.
Example 1
As shown in fig. 1 and fig. 2, the angle-adjustable seat backrest comprises a backrest bracket 1, and is characterized in that a hinge plate 2 and an angle adjusting mechanism 3 are sequentially hinged from the top to the bottom of the backrest bracket 1, the hinge point of the hinge plate 2 and the angle adjusting mechanism 3 protrudes forward to form a sharp angle structure, the angle adjusting mechanism 3 pushes and pulls the hinge plate 2 to rotate around the hinge point at the top, a height adjusting mechanism 4 is arranged on the hinge plate 2, and the height adjusting mechanism 4 is connected with a backrest 5. The angle adjusting mechanism 3 pushes the hinge plate 2 to rotate around a hinge point, so that the angle adjustment of the hinge plate 2 is realized, and the height adjusting mechanism 4 moves up and down on the hinge plate 2, so that the position adjustment of the backrest is realized.
The middle part of the backrest bracket 1 is hollowed out, the top of the backrest bracket 1 is provided with a hinge plate 10, the hinge plate 10 is hinged with a hinge plate 2, the bottom of the backrest bracket 1 is provided with a hinge block 11, and the hinge block 11 is hinged with an angle adjusting mechanism 3. The middle part of the backrest bracket 1 is hollowed out, so that a rotation space is provided for the angle adjusting mechanism 3 and the hinge plate 2, and the hinge plate 2 is hinged through the hinge plate 10 and the hinge block 11, so that the hinge plate 2 is convenient to install and detach.
As shown in fig. 3, the angle adjusting mechanism 3 comprises an air rod 30, a hinge block 11 is hinged at the bottom of the air rod 30, and a telescopic rod 31 at the end of the air rod 30 is hinged with the hinge plate 2. The air bar 30 pushes the telescopic bar 31, forcing the telescopic bar 31 to push the hinge block 11, and the hinge block 11 rotates.
The bottom end of the hinge plate 2 is tilted outwards to form a hinge part 20, a through hole is formed in the hinge part 20, the through hole is connected with a telescopic rod 31 through a bolt in a penetrating way, a plurality of key grooves 21 are formed in the middle of the hinge plate 2, and grooves 22 are formed in the hinge plate 2. The outward warping forming hinge 20 facilitates the pushing of the hinge plate 2 by the angle adjusting mechanism 3, and the key groove 21 is used for fixing the directional position of the backrest 5 to prevent the backrest 5 from being deviated.
As shown in fig. 4, the height adjusting mechanism comprises a groove 22, a plurality of inclined grooves 23 recessed towards two sides are arranged on the inner walls of two sides of the groove 22, and a sliding block 40 is arranged in the groove 22 to slide. The slider 40 slides in the groove 22 and is engaged with the inclined groove 23.
The two sides of the sliding block 40 are respectively provided with a supporting leg 41 which inclines outwards towards the corresponding side, the two supporting legs 41 are connected by a spring, the supporting legs 41 are clamped in the inclined grooves 23, the sliding block is provided with a through hole, and the through hole is internally connected with the backrest 5 by a penetrating bolt. Pushing the slider 40 causes the legs 41 to engage and thereby move the backrest 5, the spring causes the legs 41 to separate and engage the inclined grooves 23.
The backrest 5 is provided with a plurality of through holes corresponding to the key grooves 21, and the through holes are connected with the corresponding key grooves 21 through bolts. The backrest 5 is coupled by the key groove 21, preventing the backrest 5 from being deviated.
Example two
The application also provides a seat, which comprises the seat backrest with the adjustable angle in the first embodiment, wherein the bottom edge of the backrest bracket 1 is inserted into the seat and is fixed by a plurality of bolts in a penetrating way.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (8)
1. The utility model provides a but angle regulation's seat back, includes back support (1), its characterized in that, by the top of back support (1) is articulated in proper order to link to each other articulated slab (2) and angle adjustment mechanism (3) to the bottom, articulated slab (2) with the hinge point of angle adjustment mechanism (3) is protruding forward to form the closed angle structure, angle adjustment mechanism (3) push-pull articulated slab (2) rotate around the hinge point that is located the top, be equipped with height adjustment mechanism (4) on articulated slab (2), back (5) are connected to height adjustment mechanism (4).
2. The angle-adjustable seat back according to claim 1, wherein the middle part of the back support (1) is hollowed out, a hinge plate (10) is arranged at the top of the back support (1), the hinge plate (10) is hinged with the hinge plate (2), a hinge block (11) is arranged at the bottom of the back support (1), and the hinge block (11) is hinged with the angle adjusting mechanism (3).
3. The angle-adjustable seat back according to claim 2, wherein the angle adjustment mechanism (3) includes an air lever (30), the bottom of the air lever (30) is hinged to the hinge block (11), and a telescopic lever (31) at the end of the air lever (30) is hinged to the hinge plate (2).
4. The angle-adjustable seat back according to claim 3, wherein the bottom end of the hinge plate (2) is tilted outwards to form a hinge part (20), a through hole is formed in the hinge part (20), the through hole is connected with the telescopic rod (31) through a penetrating bolt, a plurality of key grooves (21) are formed in the middle of the hinge plate (2), and a groove (22) is formed in the hinge plate (2).
5. The seat back with adjustable angle according to claim 4, wherein the height adjusting mechanism (4) comprises a groove (22), a plurality of inclined grooves (23) recessed towards two sides are arranged on the inner walls of two sides of the groove (22), and a sliding block (40) is arranged in the groove (22) to slide.
6. The seat back with adjustable angle according to claim 5, wherein the two sides of the sliding block (40) are respectively provided with a supporting leg (41) which inclines outwards towards the corresponding side, the two supporting legs (41) are connected by a spring, the supporting legs (41) are clamped in the inclined grooves (23), the sliding block is provided with a through hole, and the through hole is internally connected with the backrest (5) by a penetrating bolt.
7. The seat back with adjustable angle according to claim 6, wherein the backrest (5) is provided with a plurality of through holes corresponding to the key grooves (21), and the key grooves (21) corresponding to the bolt connection are penetrated in the through holes.
8. A seat, characterized by comprising an angle-adjustable seat back according to any one of claims 1 to 7, wherein the bottom edge of the back support (1) is inserted into the seat and fastened by means of a number of bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323051676.7U CN220898315U (en) | 2023-11-13 | 2023-11-13 | Angle-adjustable seat backrest and seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323051676.7U CN220898315U (en) | 2023-11-13 | 2023-11-13 | Angle-adjustable seat backrest and seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220898315U true CN220898315U (en) | 2024-05-07 |
Family
ID=90912605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323051676.7U Active CN220898315U (en) | 2023-11-13 | 2023-11-13 | Angle-adjustable seat backrest and seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220898315U (en) |
-
2023
- 2023-11-13 CN CN202323051676.7U patent/CN220898315U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |