CN211511153U

CN211511153U - Angle adjusting device and chair with chassis capable of being tilted backwards

Info

Publication number: CN211511153U
Application number: CN201921941600.2U
Authority: CN
Inventors: 朱顺东
Original assignee: Dongguan Boyi Furniture Ltd
Current assignee: Dongguan Boyi Furniture Ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-09-18
Anticipated expiration: 2029-11-11

Abstract

The utility model discloses an angle adjusting device, which comprises a seat body, a seat plate, an elastic reset piece, a linkage shaft, a first pressing piece and a locking rod, wherein the seat plate is pivoted with the seat body through a pivoting shaft; the seat plate is provided with an arc-shaped hole taking the center of the pivot shaft as a circle center, and the extending direction of the arc-shaped hole is intersected with the elastic force direction of the elastic resetting piece; one end of the locking rod can slide relative to the arc-shaped hole and penetrates out of the arc-shaped hole, and the other end of the locking rod is provided with a locking part which can be abutted against the first pressing part to limit the elastic resetting part to reset so as to lock the rotated seat plate. The utility model discloses angle adjusting device has and makes seat chassis angle can adjust, simple structure adjusts convenient advantage. In addition, the utility model discloses still disclose a chassis can lean back seat.

Description

Angle adjusting device and chair with chassis capable of being tilted backwards

Technical Field

The utility model relates to a seat especially relates to an angle adjusting device and chassis can back up seat.

Background

In order to adjust the sitting posture and improve the comfort of the existing chair, such as an office chair, an adjusting mechanism is generally provided for adjusting the backrest so that the backrest can be tilted. However, the existing adjusting mechanism structure is only adjustable by the backrest, and the seat body is not adjustable, so that the comfort is not further improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an angle modulation, simple structure adjusts convenient angle modulation device.

Another object of the present invention is to provide a chair with a reclining base, wherein the base is adjustable to the reclining position.

In order to achieve the above object, the present invention provides an angle adjusting device, which includes a seat, a seat plate, an elastic reset element, a linkage shaft, a first pressing element, and a locking lever, wherein the seat plate is pivoted to the seat through a pivoting shaft, one end of the elastic reset element is disposed on the seat, the other end of the elastic reset element is pressed against the first pressing element, and the first pressing element is pivoted to the seat plate through the linkage shaft; the seat plate is provided with an arc-shaped hole taking the center of the pivot shaft as a circle center, and the extending direction of the arc-shaped hole is intersected with the elastic force direction of the elastic resetting piece; one end of the locking rod can slide relative to the arc-shaped hole and penetrates out of the arc-shaped hole, and the other end of the locking rod is provided with a locking part which can be abutted against the first pressing part to limit the elastic resetting part to reset so as to lock the rotated seat plate.

Compared with the prior art, because the utility model discloses a make the bedplate with the pedestal pin joint, and the bedplate with set up elasticity between the pedestal and reset the piece, make elasticity resets the one end of piece and supports to press in first casting die, recycle one movably set up in the downthehole locking lever of arc of bedplate is right first casting die supports to press, and then can reach the locking the purpose of bedplate makes the bedplate locks in current turned angle. When the seat is applied to a seat, the angle of the chassis can be adjusted after the seat board is connected with the chassis of the seat, the locking rod can be controlled to rotate to lock or unlock, the structure is simple, and the adjustment is very convenient.

Preferably, the angle adjusting device further includes a second pressing member, one end of the elastic restoring member abuts against the second pressing member, and the second pressing member is pivotally connected or fixed to the seat body through a fixing shaft. The second pressing piece is arranged, so that the elastic resetting piece can be further positioned, the elastic resetting piece is more stable, and deflection is prevented.

Specifically, the angle adjusting device further comprises a positioning column in a telescopic structure, and the positioning column is arranged between the first pressing piece and the second pressing piece. The reference column can further be right elasticity resets and carries out guiding orientation, improves elasticity resets the stability of piece.

Specifically, the positioning column comprises a positioning sleeve and a connecting column, the connecting column is slidably sleeved on the positioning sleeve, the positioning sleeve is fixed on the second pressing piece, and the connecting column is fixed on the first pressing piece.

Preferably, the locking portion is an eccentric protrusion, and the locking lever rotates to make the eccentric protrusion abut against or separate from the first pressing member.

Preferably, the angle adjusting device further comprises a pneumatic rod sleeve for connecting a pneumatic rod, and the pneumatic rod sleeve is connected with the seat body.

A chair with a chassis capable of being tilted backwards comprises a chassis, a backrest, armrests, a chair foot frame and an angle adjusting device, wherein the backrest and the armrests are arranged on the chassis, and a seat body is arranged on the chair foot frame.

Drawings

Fig. 1 is a perspective view of the angle adjusting device of the present invention.

Fig. 2 is a top view of the angle adjusting device of the present invention.

Fig. 3 is an exploded view of the angle adjusting device of the present invention.

Fig. 4 is a state diagram of the seat plate when the angle adjusting device of the present invention adjusts the angle.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

As shown in fig. 1 to 4, the angle adjusting device 100 of the present invention includes a seat body 1, a seat plate 2, an elastic reset element 3, a linkage shaft 4, a first pressing element 5, a second pressing element 6, and a locking lever 7. The pedestal 1 and hollow structure, and the foot body 11 is stretched out in four corners, elasticity piece 3 that resets is compression spring, and quantity is two, sets up side by side respectively. The seat board 2 is pivoted with the seat body 1 through a pivoting shaft 21. One end of the elastic reset piece 3 is pressed against the first pressing piece 5, and the first pressing piece 5 is pivoted on the seat board 2 through the linkage shaft 4 and is located between the two leg bodies 11 on the same side. The other end of the elastic reset piece 3 is pressed against the second pressing piece 6, and the second pressing piece 6 is arranged between the two leg bodies 11 on the other side of the seat body 1 through a fixing shaft 61; the second pressing member 6 may be pivotally connected to the seat body 1, or may be fixed to the seat body 1, and the second pressing member 6 is fixed to the seat body 1 in this application. The first pressing piece 5 and the second pressing piece 6 are arranged to position the elastic resetting piece 3, so that the elastic resetting piece is more stable and can be prevented from swinging. The seat board 2 is U-shaped, two sides of the seat board are of a sheet structure, and two sides of the seat board 2 are wrapped on two sides of the seat body 1. Arc-shaped holes 22 taking the center of the pivot shaft 21 as the circle center are formed in two sides of the seat plate 2; one end of the locking rod 7 can slide relative to the arc-shaped hole 22 and penetrate out of the arc-shaped hole 22, and the diameter of the locking rod 7 is slightly smaller than the width of the arc-shaped hole 22; the other end of the locking lever 7 is provided with a locking part 71 which can be abutted against the first pressing part 5 to limit the elastic resetting part 3 to reset. The locking portion 71 is an eccentric protrusion, and the locking lever 7 is rotated to abut against or separate from the first presser 5. The extending direction of the arc-shaped hole 22 intersects with the elastic force direction of the elastic resetting piece 3. When the elastic reset piece 3 applies an elastic force to the locking lever 7, the end of the locking lever 7 abutting against the first pressing piece 5 is transversely limited by the arc-shaped hole 22 and cannot move in the elastic direction, so that the elastic reset piece 3 cannot reset, and the seat plate 2 is in a locked state after rotating.

Referring to fig. 3, in particular, the angle adjusting apparatus 100 further includes a positioning column in a telescopic structure, and the positioning column is disposed between the first pressing member 5 and the second pressing member 6. The positioning column comprises a positioning sleeve 81 and a connecting column 82, the connecting column 82 is slidably sleeved on the positioning sleeve 81, the positioning sleeve 81 is fixed on the second pressing part 6, and the connecting column 82 is fixed on the first pressing part 5. The reference column can further be to elasticity resets piece 3 and carries out guiding orientation, improves elasticity resets the stability of piece 3.

As shown in fig. 1, the angle adjusting apparatus 100 further includes a pneumatic rod sleeve 9 for connecting a pneumatic rod, and the pneumatic rod sleeve 9 is connected to the seat body 1.

The utility model discloses can be used to on the seat, make the chassis of seat adjustable, this kind of chassis can back up the seat and include chassis, back, handrail, chair foot rest and angle adjusting device 100, the back reaches the handrail set up in on the chassis, pedestal 1 set up in with on the chair foot rest, be equipped with the atmospheric pressure stick on the chair foot rest, the upper end of atmospheric pressure stick cup joints and is fixed in the atmospheric pressure stick sleeve pipe 9.

In view of the above and with reference to fig. 4, the adjustment principle of the angle adjustment device 100 of the present invention is described as follows:

when the angle is not adjusted, the locking rod 7 is positioned at the upper end of the arc-shaped hole 22, the convex point of the eccentric convex part is not opposite to the first pressing part 5, and the convex point of the eccentric convex part can face upwards or downwards, so that the elastic resetting part 3 can extend. When the seat or the chassis of the chair needs to be leaned backwards, the chassis or the seat board 2 is pressed, and the seat board 2 rotates anticlockwise around the pivot shaft 21. At this time, the linkage shaft 4 drives the first pressing piece 5 to move, so that the first pressing piece 5 compresses the elastic resetting piece 3, meanwhile, the connecting column 82 retracts into the positioning sleeve 81, and the locking rod 7 slides relative to the arc-shaped hole 22 until the locking rod 7 reaches the lower end of the arc-shaped hole 22. At this time, the eccentric protrusion is rotated to enable the protrusion point of the eccentric protrusion to be opposite to the first pressing piece 5 and to be abutted against the first pressing piece 5, so that the elastic resetting piece 3 cannot be reset, and a stable triangular structure is formed among the pivot shaft 21, the linkage shaft 4 and the fixing shaft 61, so that the seat plate 2 is locked in a rotated state, and the chassis of the seat can be locked. When unlocking, the eccentric bulge part is only required to be rotated, and the bulge point is not opposite to the first pressing piece 5, so that unlocking can be realized.

Compared with the prior art, because the utility model discloses a make bedplate 2 with 1 pin joint of pedestal, and bedplate 2 with set up elasticity between the pedestal 1 and reset piece 3, make elasticity resets the one end of piece 3 and supports to press in first casting die 5, recycle one movably set up in locking lever 7 in the arc hole 22 of bedplate 2 is right first casting die 5 supports to press, and then can reach the locking the purpose of bedplate 2 makes bedplate 2 locks in current turned angle. When the seat plate 2 is applied to a seat, after the seat plate is connected with a chassis of the seat, the angle of the chassis can be adjusted, and the locking or unlocking can be realized only by controlling and rotating the locking rod 7, so that the structure is simple, and the adjustment is very convenient.

The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the scope of the present invention is not limited to the above embodiments.

Claims

1. An angle adjusting device, characterized in that: the seat plate is pivoted with the seat body through a pivoting shaft, one end of the elastic resetting piece is arranged on the seat body, the other end of the elastic resetting piece is pressed against the first pressing piece, and the first pressing piece is pivoted on the seat plate through the linkage shaft; the seat plate is provided with an arc-shaped hole taking the center of the pivot shaft as a circle center, and the extending direction of the arc-shaped hole is intersected with the elastic force direction of the elastic resetting piece; one end of the locking rod can slide relative to the arc-shaped hole and penetrates out of the arc-shaped hole, and the other end of the locking rod is provided with a locking part which can be abutted against the first pressing part to limit the elastic resetting part to reset so as to lock the rotated seat plate.

2. The angle adjusting apparatus of claim 1, wherein: the angle adjusting device further comprises a second pressing piece, one end of the elastic resetting piece is pressed against the second pressing piece, and the second pressing piece is pivoted or fixed on the seat body through a fixing shaft.

3. The angle adjusting apparatus of claim 2, wherein: the angle adjusting device further comprises a positioning column in a telescopic structure, and the positioning column is arranged between the first pressing piece and the second pressing piece.

4. An angle adjusting device according to claim 3, wherein: the positioning column comprises a positioning sleeve and a connecting column, the connecting column is sleeved on the positioning sleeve in a sliding mode, the positioning sleeve is fixed on the second pressing piece, and the connecting column is fixed on the first pressing piece.

5. The angle adjusting apparatus of claim 1, wherein: the locking part is an eccentric bulge, and the eccentric bulge is pressed against or separated from the first pressing piece by enabling the locking rod to rotate.

6. The angle adjusting apparatus of claim 1, wherein: the angle adjusting device further comprises a pneumatic rod sleeve for connecting a pneumatic rod, and the pneumatic rod sleeve is connected with the seat body.

7. A seat with a chassis capable of being tilted backwards is characterized in that: comprising a chassis, a backrest, armrests, a chair leg frame and the angle adjusting device as claimed in any one of claims 1 to 6, wherein the backrest and the armrests are arranged on the chassis, the chassis is arranged on the seat board, and the seat body is arranged on the chair leg frame.