CN105725558A

CN105725558A - Office chair

Info

Publication number: CN105725558A
Application number: CN201610171903.5A
Authority: CN
Inventors: 单来
Original assignee: Xuzhou Lieqi Commerce And Trade Co Ltd
Current assignee: Xuzhou Lieqi Commerce And Trade Co Ltd
Priority date: 2016-03-24
Filing date: 2016-03-24
Publication date: 2016-07-06

Abstract

The invention discloses an office chair which comprises a lower chair surface (1) and four chair legs (2) which are arranged at four corners of the lower chair surface (1). The office chair is characterized by further comprising an upper chair surface (3) positioned above the lower chair surface (1), wherein the lower part of the upper chair surface (3) is connected with the four corners at the upper part of the lower chair surface (1) through four compressed springs (4) at four corners; a ball (5) is fixedly arranged in a central area at the lower part of the upper chair surface (3); a ball socket (6) matched with the ball (5) is arranged in a position corresponding to the ball (5) at the upper part of the lower chair surface (1); the ball (5) is positioned in the ball socket (6) and is matched with the ball socket (6). The chair surfaces of the office chair can be moved, so that the waist of a person sitting on the office chair can be effectively moved, and the risk of lumbar muscle degeneration of the person sitting on the office chair can be reduced.

Description

A kind of office chair

Technical field

The present invention relates to a kind of office chair.

Background technology

Existing seat and bracing frame connect as one, and during seat, seat is in stationary state, so makes the personnel of sitting feel uncomfortable, particularly with working clan, so fixing seat makes the waist of sitting person can not get effective activity, long-term bend over one's desk working after, it is easy to make sitting person produce lumbar muscle strain.

Summary of the invention

For above-mentioned prior art Problems existing, the present invention provides a kind of office chair, and the seat of this office chair can be movable, it is possible to makes the waist of sitting person obtain effective activity, it is possible to make sitting person reduce the risk of lumbar muscle strain.

To achieve these goals, the present invention provides a kind of office chair, including lower seat, it is arranged on four chair lower limbs of lower seat corner, is positioned at the upper seat above lower seat, the corner of the bottom of described upper seat four stage clips and lower seat top by being positioned at its corner is connected, the described basifacial central area of upper chair is fixedly provided with bulb, the position of the corresponding described bulb in the top of lower seat is provided with the ball-and-socket suitable with described bulb, and described bulb is arranged in ball-and-socket to match with ball-and-socket.

In this technical scheme, by coordinating of bulb and ball-and-socket, the setting of four stage clips in addition, can make seat while load-bearing, can for helping bulb and lower seat to occur to swing by a small margin, consequently facilitating sitting person makes waist carry out activity by a small margin in the course of the work, it is thus possible to reduce the probability of lumbar muscle strain.

Further, in order to reduce the abrasion between bulb and ball-and-socket, the oiling passage being transversely communicated with ball-and-socket outside and its inside of described ball-and-socket, the so convenient lubricating oil that injects is to improve the service life of bulb and ball-and-socket.

Further, in order to alleviate the overall weight of this chair and can guarantee that it has good load bearing stength, leg adopts hollow steel pipe to make.

Further, in order to improve comfortableness, the side of described upper seat is fixedly provided with the chair back.

In order to improve comfortableness further, described upper seat and lower seat are square, the size of seat under being smaller in size than of upper seat, the diagonal center of the diagonal center of upper seat and lower seat is on a vertical straight line, two end faces of the contiguous chair back of described lower seat are each provided with a handrail, and the crossbeam that described handrail is fixed to be connected with institute post column by a column fixing to be connected with lower seat side and forms.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention；

Fig. 2 is the structural representation that in the present invention, upper seat and lower seat match.

In figure: 1, lower seat, 2, chair lower limb, 3, upper seat, 4, stage clip, 5, bulb, 6, ball-and-socket, 7, oiling passage, 8, the chair back, 9, handrail.

Detailed description of the invention

The invention will be further described below.

As depicted in figs. 1 and 2, a kind of office chair, including lower seat 1, it is arranged on four chair lower limbs 2 of lower seat 1 four jiaos, is positioned at the upper seat 3 above lower seat 1, the corner of the bottom of described upper seat 3 four stage clips 4 and lower seat 1 top by being positioned at its corner is connected, the central area of described upper seat 3 bottom is fixedly provided with bulb 5, the position of the corresponding described bulb 5 in the top of lower seat 1 is provided with the ball-and-socket 6 suitable with described bulb 5, and described bulb 5 is arranged in ball-and-socket 6 to match with ball-and-socket 6.By coordinating of bulb 5 and ball-and-socket 6, the setting of four stage clips 4 in addition, can make seat 3 while load-bearing, can for the swing by a small margin helping the bulb 5 ball-and-socket 6 around lower seat 1 to carry out annular, consequently facilitating sitting person makes waist carry out activity by a small margin in the course of the work, it is thus possible to reduce the probability of lumbar muscle strain.

In order to reduce the abrasion between bulb 5 and ball-and-socket 6, the oiling passage 7 being transversely communicated with ball-and-socket 6 outside and its inside of described ball-and-socket 6.

In order to alleviate the overall weight of this chair and can guarantee that it has good load bearing stength, leg 2 adopts hollow steel pipe to make.

In order to improve comfortableness, the side of described upper seat 3 is fixedly provided with the chair back 8.

In order to improve comfortableness further, described upper seat 3 and lower seat 1 are square, the size of seat 1 under being smaller in size than of upper seat 3, the diagonal center of the diagonal center of upper seat 3 and lower seat 1 is on a vertical straight line, two end faces of the contiguous chair back 8 of described lower seat 1 are each provided with a handrail 9, and the crossbeam that described handrail 9 is fixed to be connected with institute post column by a column fixing to be connected with lower seat 1 side and forms.

Claims

1. an office chair, including lower seat (1) and four the chair lower limbs (2) being arranged on lower seat (1) corner, it is characterized in that, also include the upper seat (3) being positioned at lower seat (1) top, the corner of the bottom of described upper seat (3) four stage clips (4) and lower seat (1) top by being positioned at its corner is connected, the central area of described upper seat (3) bottom is fixedly provided with bulb (5), the position of the corresponding described bulb (5) in the top of lower seat (1) is provided with the ball-and-socket (6) suitable with described bulb (5), described bulb (5) is arranged in ball-and-socket (6) to match with ball-and-socket (6).

2. a kind of office chair according to claim 1, it is characterised in that the oiling passage (7) being transversely communicated with ball-and-socket (6) outside and its inside of described ball-and-socket (6).

3. a kind of office chair according to claim 1 and 2, it is characterised in that leg (2) adopts hollow steel pipe to make.

4. a kind of office chair according to claim 1 and 2, it is characterised in that the side of described upper seat (3) is fixedly provided with the chair back (8).

5. a kind of office chair according to claim 4, it is characterized in that, described upper seat (3) and lower seat (1) are square, the size of seat (1) under being smaller in size than of upper seat (3), the diagonal center of the diagonal center of upper seat (3) and lower seat (1) is on a vertical straight line, two end faces of the contiguous chair back (8) of described lower seat (1) are each provided with a handrail (9), the crossbeam that described handrail (9) is fixed to be connected with institute post column by a column fixing to be connected with lower seat (1) side and one forms.