CN220369739U

CN220369739U - Office chair with seat-back linkage structure

Info

Publication number: CN220369739U
Application number: CN202321947562.8U
Authority: CN
Inventors: 孙贡华
Original assignee: Foshan Chengmin Furniture Co ltd
Current assignee: Foshan Chengmin Furniture Co ltd
Priority date: 2023-07-22
Filing date: 2023-07-22
Publication date: 2024-01-23
Anticipated expiration: 2033-07-22

Abstract

The utility model provides an office chair of back of body linkage structure, includes the seat support, sets up handrail in the seat support both sides, sets up the installation base in the seat support bottom and set up the back of the chair at the seat support rear side, the bottom of seat support is equipped with guide structure, installation base slip direction is installed on guide structure, forms the pin joint with the middle part and the handrail elastic connection of back of the chair to set up guide structure and installation base in the bottom of seat support, drive the back of the chair through the installation base and use the pin joint to swing as the center when the seat support activity, consequently, the seat support is adjusted to the accessible back of the body when office personnel sits on the office chair, thereby can also drive the back of the chair and use the pin joint to swing as the center through the linkage seat and adjust the back of the chair inclination, so that seat support and back of the chair can link each other, can satisfy office personnel's multiple position of sitting demand, let the office chair more comfortable.

Description

Office chair with seat-back linkage structure

Technical Field

The utility model relates to the technical field of office chairs, in particular to an office chair with a seat-back linkage structure.

Background

The office chair is a chair which is convenient for work in daily work and social activities, can be used in life or work, has wide application range and large demand, and different people have different demands on the office chair, and if the office people need to sit on the office chair for a long time for working, the sitting posture needs to be adjusted every other end time, so that the uncomfortable feeling caused by long sitting is relieved. In the conventional office chairs, only the function of adjusting the chair back is often provided.

The office chair disclosed in the chinese patent with patent application number CN202020898772.2 comprises a seat, a chair back, a headrest, a footing and two armrests, wherein the bottom of the chair back is rotationally connected with the seat and is provided with an angle-adjustable structure, the headrest is positioned at the top of the chair back and is of an integral structure, and the footing comprises a base and a telescopic connecting column. The adjustable structure of accessible angle carries out inclination to the back of the chair in this structure to can provide the travelling comfort for office chair, but its seat support is connected on the telescopic connection post, and does not possess regulatory function, can only adjust the back of the chair and can't adjust the seat support when office staff needs the adjustment gesture, can't satisfy office staff's position of sitting demand, consequently need an office chair that can adjust the seat support.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides an office chair with a seat-back linkage structure.

The technical scheme adopted for solving the technical problems is as follows:

an office chair with a seat-back linkage structure comprises a chair seat, armrests arranged on two sides of the chair seat, a mounting base arranged at the bottom of the chair seat and a chair back arranged on the rear side of the chair seat; the bottom of the chair seat is provided with a guide structure, and the installation base is installed on the guide structure in a sliding guide manner; the middle part and the handrail elastic connection of back of the chair form the pin joint, the bottom of back of the chair articulates on the installation base, the back of the chair is articulated with the pin joint as center through the installation base under the direction of guide structure's direction when the seat support activity.

Further, the guide structure is provided with an inclined guide slideway and a horizontal guide slideway which are distributed from front to back, the front end of the inclined guide slideway is arranged in a downward inclined mode, the front end of the installation base is connected to the inclined guide slideway in a guiding mode, and the rear end of the installation base is connected to the horizontal guide slideway in a guiding mode.

Further, the guide structure is including locating two guide units of seat support bottom, the installation base is located two between the guide units, the slope direction slide includes two locate respectively two slope slides on the guide unit, the horizontal direction slide includes two locate respectively the horizontal slide on the guide unit, the left and right sides of installation base all is equipped with movable mounting in slope slide mechanism, movable mounting in horizontal slide mechanism.

Further, the inclined sliding mechanism and the horizontal sliding mechanism comprise a nest rotatably installed on the installation base, balls arranged on the nest and a sliding seat installed on the nest, and the sliding seat limits the balls on the nest; one end of the ball is propped against the sliding seat to be in sliding fit with the sliding seat, and the other end of the ball passes through the nesting and is in rolling fit with the inclined slideway or the horizontal slideway.

Further, the balls are provided with two groups, and the two groups of balls are positioned at the upper end and the lower end of the sliding seat.

Further, buffer rubber for damping the horizontal sliding mechanism is arranged at the front end and the rear end of the horizontal slideway.

Further, the guiding stroke of the horizontal slideway is smaller than that of the inclined slideway.

Further, the guiding unit comprises a first seat body, a second seat body, a first cover body and a second cover body, wherein the first seat body and the second seat body are fixedly arranged at the bottom of the seat from front to back, the first cover body is arranged on the first seat body, and the first seat body and the first cover body are respectively provided with a first groove which is mutually communicated to form the inclined slideway; the second cover body is arranged on the second base body, and the second base body and the second cover body are respectively provided with a second groove which is mutually communicated to form the horizontal slideway.

Further, the top of the first groove of the first seat body and the top of the second groove of the second seat body are respectively provided with a metal plate for contacting with the balls.

Further, the first cover body and the second cover body are made of metal materials.

The utility model has the following advantages and beneficial effects:

the middle part and the handrail elastic connection of the chair back form the hinge point to set up guide structure and installation base in the bottom of seat support, drive the back of the chair through the installation base when the seat support activity and use the hinge point to swing as the center, consequently, the accessible back of the chair is rocked the seat support and is adjusted the position of sitting when office staff sits on office chair, thereby can also drive the back of the chair through the linkage seat when rocking the seat support and use the hinge point to swing as the center and adjust the back of the chair inclination, thereby make seat support and back of the chair can linkage each other, can satisfy office staff's multiple position of sitting demand, let office chair more comfortable.

Drawings

The utility model is further described below with reference to the drawings and embodiments:

FIG. 1 is a schematic view of an office chair according to the present embodiment;

FIG. 2 is another angular view of the office chair of the present embodiment;

FIG. 3 is a schematic view of a sliding mechanism in the present embodiment;

fig. 4 is a side view of the office chair of the present embodiment;

FIG. 5 is a schematic view of an office chair sitting forward;

fig. 6 is a schematic view of an office chair recline.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and the present utility model is not limited to the following embodiments.

As shown in fig. 1 to 4, the present embodiment discloses an office chair with a seat-back linkage structure, which comprises a seat 1, armrests 2 arranged at two sides of the seat 1, a mounting base 3 arranged at the bottom of the seat 1, and a chair back 4 arranged at the rear side of the seat 1; the bottom of the chair seat 1 is provided with a guide structure 11, the installation base 3 is installed on the guide structure 11 in a sliding guide manner, the middle part of the installation base 3 is provided with an installation hole for installing a pneumatic rod, and the bottom of the chair seat 1 is also provided with a shell 33 for wrapping the installation base 3; the middle part and the handrail 2 elastic connection of the back of the chair 4 form hinge point 5, and preferably, back of the chair 3 and handrail 2 are for having certain elastic plastics material integrated into one piece to make hinge point 5 can realize elastic bending, the bottom of back of the chair 4 articulates on installation base 3, through installation base 3 under the direction of guide structure 11 the back of the chair 4 swings with hinge point 5 as the center when seat support 1 moves about.

As shown in fig. 5 to 6, when an office worker sits on the office chair, the sitting posture can be adjusted by rocking the seat 1 back and forth, and the seat back 4 can be driven to swing back and forth by taking the hinge point 5 as the center through the mounting base 3 while rocking the seat 1, so that the seat back 4 and the seat back 1 can be mutually linked, various sitting posture requirements of the office worker can be met, and the office chair is more comfortable.

Further, in order to make the sliding of seat support 1 back and forth smoother, be equipped with slope direction slide and the horizontal direction slide that distributes from front to back on the guide structure 11, the front end downward sloping setting of slope direction slide can make seat support 1 front end lifting when installation base 3 slides forward for seat support 1, the front end direction of installation base 3 is connected on the slope direction slide, and the rear end direction is connected on the horizontal direction slide.

Further, the guiding structure 11 includes two guiding units 110 disposed at the bottom of the seat 1, the mounting base 3 is disposed between the two guiding units 110, the inclined guiding slides include two inclined slides 111 disposed on the two guiding units 110, the horizontal guiding slides include two horizontal slides 112 disposed on the two guiding units 110, and the left and right sides of the mounting base 3 are respectively provided with an inclined sliding mechanism 31 movably mounted in the inclined slide 111 and a horizontal sliding mechanism 32 movably mounted in the horizontal slide 112.

Further, the tilt slide mechanism 31 and the horizontal slide mechanism 32 each include a nest 322 rotatably mounted on the mounting base 3, a ball 323 provided on the nest 322, and a slide seat 324 mounted on the nest 322, the slide seat 324 restraining the ball 323 on the nest 322; one end of the ball 323 is propped against the sliding seat 324 to be in sliding fit with the sliding seat 324, and the other end of the ball 323 passes through the nest 322 to be in rolling fit with the inclined slide way 111 or the horizontal slide way 112.

Further, two sets of balls 323 are provided, and the two sets of balls 323 are located at the upper end and the lower end of the sliding seat 324.

Further, the horizontal slideway 112 is provided with a buffer rubber 312 at both front and rear ends for damping the horizontal sliding mechanism 32.

Further, the guiding stroke of the horizontal slideway 112 is smaller than that of the inclined slideway 111, so that when the sliding mechanism 321 in the horizontal slideway 112 collides with the buffer rubber 312, the sliding mechanism 321 in the inclined slideway 111 does not collide with the front and rear ends of the inclined slideway 111.

Further, the guiding unit 110 includes a first base 12, a second base 13, a first cover 14, and a second cover 15, where the first base 12 and the second base 13 are fixedly disposed at the bottom of the seat 1 from front to back, and the first base 12 and the second base 13 are integrally formed with the seat 1 in an injection molding manner; the first cover 14 is mounted on the first base 12 by bolts, and the first base 12 and the first cover 14 are provided with first grooves which are mutually communicated to form the inclined slideway 111; the second cover body 15 is mounted on the second base body 13 by bolts, and second grooves which are mutually communicated to form the horizontal slideway 112 are formed in the second base body 13 and the second cover body 15.

Further, the top of the first groove of the first base 12 and the top of the second groove of the second base 13 are respectively provided with a metal plate 16, such as an iron plate, for contacting with the balls 323, so as to prevent the balls 323 from damaging the first base 12 or the second base 13.

Further, the first cover 14 and the second cover 15 are made of metal, such as aluminum alloy, so that the balls 323 are prevented from damaging the first cover 14 or the second cover 15, and the first cover 14 or the second cover 15 is not easily worn by the balls 323.

The above description is merely illustrative of the utility model and those skilled in the art may make various modifications and additions to the described embodiments or substitutions in a similar manner without departing from the scope of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. An office chair with a sitting and backing linkage structure is characterized in that: comprises a chair seat (1), armrests (2) arranged at two sides of the chair seat (1), a mounting base (3) arranged at the bottom of the chair seat (1) and a chair back (4) arranged at the rear side of the chair seat (1); the bottom of the chair seat (1) is provided with a guide structure (11), and the installation base (3) is installed on the guide structure (11) in a sliding guide way; the middle part and handrail (2) elastic connection of back of the chair (4) form pin joint (5), the bottom of back of the chair (4) articulates on installation base (3), link back of the chair (4) and use pin joint (5) as the center swing under the direction of guide structure (11) through installation base (3) when seat support (1) activity.

2. An office chair of a seat back linkage structure according to claim 1, wherein: the guide structure (11) is provided with an inclined guide slideway and a horizontal guide slideway which are distributed from front to back, the front end of the inclined guide slideway is arranged in a downward inclined mode, the front end of the installation base (3) is connected to the inclined guide slideway in a guiding mode, and the rear end of the installation base is connected to the horizontal guide slideway in a guiding mode.

3. An office chair of a seat back linkage structure according to claim 2, wherein: the guide structure (11) comprises two guide units (110) arranged at the bottom of the chair seat (1), the installation base (3) is positioned between the guide units (110), the inclined guide slide ways comprise two inclined slide ways (111) respectively arranged on the guide units (110), the horizontal guide slide ways comprise two horizontal slide ways (112) respectively arranged on the guide units (110), and the left side and the right side of the installation base (3) are respectively provided with an inclined slide mechanism (31) movably arranged in the inclined slide ways (111) and a horizontal slide mechanism (32) movably arranged in the horizontal slide ways (112).

4. An office chair with a seat-back linkage according to claim 3, wherein: the inclined sliding mechanism (31) and the horizontal sliding mechanism (32) comprise a nest (322) rotatably installed on the installation base (3), balls (323) arranged on the nest (322) and a sliding seat (324) installed on the nest (322), and the balls (323) are limited on the nest (322) by the sliding seat (324); one end of the ball (323) is propped against the sliding seat (324) to be in sliding fit with the sliding seat (324), and the other end of the ball (323) passes through the nest (322) to be in rolling fit with the inclined slideway (111) or the horizontal slideway (112).

5. An office chair with a seat-back linkage according to claim 4, wherein: the balls (323) are provided with two groups, and the two groups of balls (323) are positioned at the upper end and the lower end of the sliding seat (324).

6. An office chair of a seat-back linkage according to claim 5, wherein: buffer rubber (312) for damping the horizontal sliding mechanism (32) is arranged at the front end and the rear end of the horizontal slideway (112).

7. An office chair of a seat-back linkage according to claim 5, wherein: the guiding travel of the horizontal slideway (112) is smaller than that of the inclined slideway (111).

8. An office chair with a seat-back linkage according to claim 3 or 4, wherein: the guide unit (110) comprises a first seat body (12), a second seat body (13), a first cover body (14) and a second cover body (15), wherein the first seat body (12) and the second seat body (13) are fixedly arranged at the bottom of the seat (1) from front to back, the first cover body (14) is arranged on the first seat body (12), and the first seat body (12) and the first cover body (14) are respectively provided with a first groove which is mutually communicated to form the inclined slide way (111); the second cover body (15) is arranged on the second base body (13), and second grooves which are communicated with each other to form the horizontal slideway (112) are formed in the second base body (13) and the second cover body (15).

9. The office chair of claim 8, wherein: the top of the first groove of the first seat body (12) and the top of the second groove of the second seat body (13) are respectively provided with a metal plate (16) for contacting with the balls (323).

10. An office chair of a seat back linkage structure according to claim 9, wherein: the first cover body (14) and the second cover body (15) are made of metal materials.