CN200938961Y

CN200938961Y - Office chair having structure improved

Info

Publication number: CN200938961Y
Application number: CNU2006200625437U
Authority: CN
Inventors: 郑素梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-04
Filing date: 2006-08-04
Publication date: 2007-08-29
Anticipated expiration: 2016-08-04
Also published as: US20080030057A1; JP3136198U

Abstract

The utility model relates to an office chair with an improved structure, which comprises a chair back, a chair seat, a chair foot and a back bend; wherein the chair foot is provided with a fixed air pressure valve, the back bend is L-shaped, the longitudinal part of the back bend is directly fixed in the chair back, the lateral part of the back bend is directly fixed on the underside of the chair seat, the lateral part of the back bend is also provided with a fixed hole at the position corresponding to the middle part of the chair seat, the top of the air pressure valve is embedded in the fixed hole. The air pressure valve is provided with a small hole on the external wall; the small hole is inserted with a shakable handle; the front part of the handle is contradicted with the motion bar inside the air pressure valve. The utility model adopts the structure to increase the overall stability, which enables the utility model to have the advantages of a simple structure, high safety, convenient assembly and low production cost.

Description

Structure improved office chair

Technical field:

The utility model relates to the office chair technical field, particularly the higher structure improved office chair of security.

Background technology:

Office chair, especially adjustable for height office chair is one of office equipment of using the most extensively at present, because its adjustable height makes people can adjust the position of seat according to different needs, is subjected to people's favor deeply.And this present class office chair, its structure as shown in Figure 1, it comprises the chair back 01, seat support 02, chair pin 03, back of the body bend pipe 04, be fixed with air pressure valve 05 on the chair pin 03, seat support 02 bottom surface is fixed with " U " type chassis 06, back of the body bend pipe 04 is " L " type, the longitudinal component and the chair back 01 are fixing, the lateral part is fixed on 06 bottom, chassis, 06 bottom, chassis has through hole, chassis 06 is placed on the air pressure valve 05 by this through hole, and 06 side, chassis also has aperture, and an end of handle 07 passes the motion bar 08 of this aperture and air pressure valve 05 and conflicts.The office chair of this structure can be adjusted the height of seat support 02, but, it also has certain limitation, and its structure more complicated, production cost are higher, and is very inconvenient when the consumer installs, in addition, two parts of back of the body bend pipe 04 are fixing with chassis 06 and the chair back 01 respectively, but this connections instability, when the consumer against the chair back 01 and when rocking back and forth, back of the body bend pipe 04 is easy to rupture with the connecting portion on chassis 06, so that injures the consumer.

Disclosed office chair in the patent documents such as " the office chair " of ZL01208165.5, ZL01203603.X " the butterfly plate rails of office chair " with new type of safe seat board, all be based on the structure of above-mentioned office chair commonly used and improve, but all do not solve complex structure, production cost height, problem such as assembling is inconvenient, security is lower.

The utility model content:

The purpose of this utility model is to provide structure improved office chair at the deficiencies in the prior art, it have simple in structure, production cost is low, advantage such as easy to assembly, safer.

For achieving the above object, the utility model adopts following technical scheme: it comprises the chair back, seat support, chair pin, back of the body bend pipe, be fixed with air pressure valve on the chair pin, back of the body bend pipe is " L " type, its longitudinal component directly is fixed on the chair back, the lateral part directly is fixed on the seat support bottom surface, on the lateral part of back of the body bend pipe, corresponding seat support medium position place also offers fixing hole, the top of air pressure valve is embedded in this fixing hole.

Offer aperture on the outer wall of described air pressure valve, this aperture place is inserted with the handle that can shake, and the motion bar of handle front end and air pressure valve inside is inconsistent.

The fixing hole place of described back of the body bend pipe also is fixed with reinforcing sleeve, and the inner sleeve shape and the air pressure valve top shape of reinforcing sleeve are complementary.

The utility model has adopted will carry on the back the mode that bend pipe is directly fixedlyed connected with seat support, the chair back, back of the body bend pipe, seat support are directly linked into an integrated entity, increased steadiness, again in conjunction with the air pressure valve of having improved, the utlity model has advantages such as simple in structure, safe, easy to assembly thereby make, also reduced production cost simultaneously.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is the structural representation of existing office chair;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is a STRUCTURE DECOMPOSITION schematic diagram of the present utility model.

The specific embodiment:

Shown in accompanying drawing 2,3, the utility model comprises: the chair back 10, seat support 20, chair pin 30, back of the body bend pipe 40 are fixed with air pressure valve 50 on the chair pin 30.

Back of the body bend pipe 40 is " L " type, offer a plurality of screw fixing holes on its longitudinal component and the lateral part respectively, by the screw fixing hole can directly be fixed on the longitudinal component of back of the body bend pipe 40 on the chair back 10, the lateral part directly is fixed on seat support 20 bottom surfaces, general, the width of back of the body bend pipe 40 is 1/3rd or 1/4th of seat support 20 width, to increase lifting surface area, certainly, the lateral part length of back of the body bend pipe 40 is roughly 2/3rds of seat support 20 length.

Because back of the body bend pipe 40 is integrated, its longitudinal component is fixedlyed connected with the chair back 10, seat support 20 respectively again with the lateral part, make the chair back 10, seat support 20 constitute an integral body, so this fixedly connected mode is very firm, when the consumer when the chair back 10 rocks back and forth, can guarantee to carry on the back bend pipe 40 and be connected, and then promote security of the present utility model with the firm of seat support 20.

On the lateral part of back of the body bend pipe 40, corresponding seat support 20 medium position places also offer fixing hole 60, the top of air pressure valve 50 is embedded in this fixing hole 60.Air pressure valve 50 supports back of the body bend pipe 40, seat support 20, and back of the body bend pipe 40, seat support 20 move up and down with air pressure valve 40.Fixing hole 60 can be a through hole, and the shape in this hole and air pressure valve 40 top shape are complementary, so that can air pressure valve 40 is fixing.

For air pressure valve 50 is better cooperated with back of the body bend pipe 40 and seat support 20, the utility model has also carried out following improvement to the structure of air pressure valve 50: offer aperture on the outer wall of described air pressure valve 50, this aperture place is inserted with the handle 70 that can shake, and the motion bar of handle 70 front ends and air pressure valve 50 inside is inconsistent.By shaking handle 70, make it push the motion bar of air pressure valve 50 inside, and then the upper and lower of control seat support 20 moved.

Back of the body bend pipe 40 can adopt metal or wooden materials, if the employing wooden materials can also add reinforcing sleeve 80 at fixing hole 60 places of described back of the body bend pipe 40, wherein, the inner sleeve shape of reinforcing sleeve 80 and air pressure valve 50 top shape are complementary, with the holding capacity between increase and the air pressure valve 50.

The utility model adopts said structure, has increased whole steadiness, makes the utility model Have the advantages such as simple in structure, safe, easy to assembly, that production cost is low.

Claims

1, structure improved office chair, it comprises the chair back (10), seat support (20), chair pin (30), back of the body bend pipe (40), be fixed with air pressure valve (50) on the chair pin (30), back of the body bend pipe (40) is " L " type, it is characterized in that: the longitudinal component of back of the body bend pipe (40) directly is fixed on the chair back (10), the lateral part directly is fixed on seat support (20) bottom surface, on the lateral part of back of the body bend pipe (40), corresponding seat support (20) medium position place also offers fixing hole (60), the top of air pressure valve (50) is embedded in this fixing hole (60).

2, structure improved office chair according to claim 1 is characterized in that: offer aperture on the outer wall of air pressure valve (50), this aperture place is inserted with the handle (70) that can shake, and the motion bar of handle (70) front end and air pressure valve (50) inside is inconsistent.

3, structure improved office chair according to claim 2 is characterized in that: the fixing hole (60) of back of the body bend pipe (40) locates also to be fixed with reinforcing sleeve (80), and the inner sleeve shape of reinforcing sleeve (80) and air pressure valve (50) top shape are complementary.