CN206371743U - A kind of chair - Google Patents

Abstract

The utility model discloses a chair, which comprises a support frame, a seat cushion and a backrest cushion. A height adjustment device is arranged between the seat cushion and the backrest cushion. A bracket, and a rotating shaft that is rotatably matched with the bracket. A pin shaft is inserted between the bracket and the bearing seat. The utility model makes the seat cushion and the backrest cushion of the whole chair be lowered to the lowest level by setting a height adjustment device at the bottom of the support frame, so that the sleeping posture of people during the morning break of the chair is more in line with the state of people resting on the bed. Improve product comfort. The safety of the product is improved by setting the chute and the limit block which cooperate with each other, and the cushion is prevented from shaking when people sleep.

Description

a chair

technical field

The utility model relates to an office tool, in particular to a chair.

Background technique

Existing office chairs all solve the needs of people for lunch breaks by adjusting the back, but the sleeping position in this way is still half-sitting, which does not conform to people's usual sleeping posture, so the comfort is weak. And the seat adjustment method is complicated, and the production cost is high.

Utility model content

The purpose of the utility model is to provide a chair to solve the problem of inconvenient use of the existing office chairs.

The technical solution adopted by the utility model to solve the technical problem is: a chair, including a support frame, a seat cushion and a backrest cushion, a height adjustment device is arranged between the seat cushion and the backrest cushion, and the height adjustment device includes a A bracket that is movably connected with the seat cushion and the backrest pad, and a rotating shaft that is rotatably matched with the bracket. The shaft is provided with a bearing seat, and the bearing seat is fixed at the lower end of the support frame. Jacks, the jacks are arranged on the housing of the bearing housing at a certain angle along the same diameter with the center of the rotating shaft as the center of rotation, and through holes matching the jacks are arranged on the bracket. A pin shaft is inserted between the bracket and the bearing seat.

Further, a limiting block is provided on the side where the seat cushion cooperates with the supporting frame, and the supporting frame is provided with a chute for inserting the limiting block and sliding inside it.

Further, one end of the supporting frame that cooperates with the backrest cushion is provided with a set of limit holes, and a telescopic rod for fixing the position of the backrest cushion is arranged in the limit holes.

Beneficial effects of the utility model: the utility model arranges a height adjustment device at the bottom of the support frame so that the seat cushion and the backrest cushion of the whole chair can be lowered to the lowest level, so that people can sleep in the chair in the morning. status. Improve product comfort. By setting the chute and the limit block which cooperate with each other, the safety of the product is improved, and the cushion is prevented from shaking when people sleep.

The utility model will be described in detail below in conjunction with the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is a side view of the utility model.

Fig. 2 is a perspective view of the utility model.

detailed description

Embodiment 1, as shown in Fig. 1, Fig. 2, a kind of chair comprises support frame 1, seat cushion 2 and backrest cushion 3, and described seat cushion 2 and backrest cushion 3 are provided with height adjusting device 4, described The height adjustment device 4 includes a group of brackets 41 that are movably connected with the seat cushion 2 and the backrest pad 3, and a rotating shaft 42 that is rotatably engaged with the bracket 41. The rotating shaft 42 is provided with a bearing seat 43, and the bearing seat 43 is fixed on the support frame 1. At the lower end, the end where the bearing seat 43 is matched with the bracket 41 is provided with a group of jacks 431, and the jacks 431 are arranged on the shell of the bearing seat 43 at a certain angle along the same diameter with the center of the rotating shaft 42 as the rotation center. The bracket 41 is provided with a through hole 411 matched with the insertion hole 431 . A pin shaft 5 is inserted between the bracket 41 and the bearing seat 43 .

The seat cushion 2 and the backrest cushion 3 of the whole chair can be put to the lowest by setting the height adjustment device 4 at the bottom of the support frame 1, so that people's sleeping posture during the morning break of the chair is more consistent with the state when resting on the bed. Improve product comfort. When the seat needs to be adjusted back after having a rest, you only need to take out the bearing pin 5, adjust the bracket 41 to a suitable height and clamp the pin shaft 5 between the bracket 41 and the bearing seat 43 again.

A limiting block 21 is provided on the side where the cushion 2 cooperates with the supporting frame 1, and the supporting frame 1 is provided with a sliding groove 12 for inserting the limiting block 21 and sliding therein. By arranging the chute 12 and the limit block 2 that cooperate with each other, the safety of the product is improved, and the cushion 2 is prevented from shaking when people sleep.

One end of the support frame 1 mated with the backrest cushion 3 is provided with a group of limiting holes 13, and a telescopic rod 15 for fixing the position of the backrest cushion is arranged in the limiting holes 13. Improve product safety.

Claims (3)

1. a kind of chair, including support frame (1), cushion (2) and backing cushion (3), it is characterised in that：Described cushion (2) and lean on Arrangement for adjusting height (4) is provided between back pad (3), described arrangement for adjusting height (4) includes one group and cushion (2) and backrest Pad and be provided with the support (41) that (3) are flexibly connected, and the rotating shaft (42) with support (41) rotatable engagement, the rotating shaft (42) Bearing block (43), bearing block (43) is fixed on the lower end of support frame (1), described bearing block (43) and the one of support (41) cooperation End is provided with one group of jack (431), and described jack (431) is by pivot of rotating shaft (42) center along same diameter, rotation Certain angle is arranged on bearing block (43) shell, and the through hole coordinated with jack (431) is provided with the support (41) (411) bearing pin (5), is plugged between support (41) and bearing block (43).

2. chair as claimed in claim 1, it is characterised in that：Described cushion (2) is set with one side that support frame (1) coordinates Be provided with limited location block (21), support frame as described above (1) for limited block (21) insertion, can its internal slide chute (12).

3. chair as claimed in claim 1, it is characterised in that：Support frame as described above (1) is set with one end that backing cushion (3) coordinates There is the expansion link (15) that fixed backrest pad position is provided with one group of spacing hole (13), described spacing hole (13).