CN218651043U

CN218651043U - Connecting device of adjustable seat back

Info

Publication number: CN218651043U
Application number: CN202222872264.9U
Authority: CN
Inventors: 杨余东; 杜伟波
Original assignee: Zhejiang Anji Xiangtai Furniture Co ltd
Current assignee: Zhejiang Anji Xiangtai Furniture Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-03-21
Anticipated expiration: 2032-10-28

Abstract

The utility model provides a connecting device of adjustable backrest, set up the connection base that mounting groove and both ends link up including the top, be connected with the gag lever post on the lateral wall of connection base, the one end of gag lever post slides and passes the lateral wall of connecting the base and to extending in the mounting groove, the gag lever post stretches into one section of mounting inslot and goes up the cover and be equipped with the adapter sleeve, the tip of connecting the base still rotates and is equipped with the mounting panel that is used for being connected with the backrest, be equipped with the spacing subassembly of restriction mounting panel pivoted between adapter sleeve and the mounting panel adjustably. The utility model has the advantage of convenient adjustment of the backrest.

Description

Connecting device of adjustable seat back

Technical Field

The utility model relates to a chair design technical field especially relates to a connecting device of adjustable seat back.

Background

The chair is a daily-life furniture, a seat with a backrest and armrests. Modern chairs pursue beauty and fashion, and some chairs are not used as seats alone, so that the life of people is more convenient under the combination of science and technology.

In the prior art, for example, the chair disclosed in patent application No. CN 106820737A, patent name office chair, although the chair can achieve the function of rotating the chair back relative to the chair seat by detaching the square column on the chair from the chair seat, the chair back of this type cannot be fixed at the angle that the user wants to fix, and the adjustment is troublesome, which is not conducive to the adjustment of the chair back by the user. Some office chairs can freely adjust the angle of the chair back, but the angle of the office chair needs to be adjusted by pressing the adjusting device while the office chair leans backwards, and the mode is labor-consuming, and users cannot easily press the adjusting device when leaning backwards to a certain angle, so that the angle of the chair back cannot be conveniently adjusted under a comfortable condition.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a connecting device of adjustable backrest for the seat among the prior art that provides in the solution background art can not be effectual when the user of service relies on backward convenient laborsaving technical problem of adjusting back of the chair angle.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a connecting device of adjustable backrest, sets up the connection base that mounting groove and both ends link up including the top, be connected with the gag lever post on the lateral wall of connection base, the one end of gag lever post slides and passes the lateral wall of connecting the base and inwards extend to the mounting groove, the gag lever post stretches into one section in the mounting groove and goes up the cover and be equipped with the adapter sleeve, the tip of connecting the base still rotates and is equipped with the mounting panel that is used for being connected with the backrest, be equipped with the spacing subassembly of restriction mounting panel pivoted between adapter sleeve and the mounting panel adjustably.

The working principle is as follows:

the utility model relates to a connecting device of an adjustable seat backrest. Mainly install on the seat and be used for connecting seat back, seat chair foot and seat board.

When the seat cushion is installed, the seat cushion plate is fixedly installed at the top of the connecting base, the seat legs are installed at the bottom of the connecting base, and finally the seat cushion is installed on the installation plate at the end part of the connecting base and can be used after the installation is finished.

When using, can directly sit on the seat board, when the angle of backrest was adjusted to needs, only need rely on backrest backward, at this moment can drive the backrest and take place to rotate for connecting the base with the mounting panel that backrest is connected, when rotating certain angle, can carry out spacingly through operation gag lever post and drive spacing subassembly to the mounting panel to place the mounting panel and continue to rotate, reach the regulation of backrest angle.

The beneficial effects obtained are as follows:

first, rotate the mounting panel and locate the tip of connecting the base, can effectually pass through the rotation of mounting panel, further drive the seat back of installing on the mounting panel and rotate.

The second, be equipped with spacing subassembly, can effectually adjust the relative rotation with the connection base of mounting panel through operating spacing subassembly, make things convenient for in the adjustment of user to the back.

The third, be equipped with the gag lever post, can be effectual make that the user of service can be more convenient operate spacing subassembly through the gag lever post, further make spacing subassembly carry out spacing regulation to the mounting panel.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of another perspective of the overall structure of FIG. 1;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

fig. 4 is a schematic sectional view of the present invention.

In the above drawings: 1. mounting grooves; 2. connecting a base; 3. a limiting rod; 4. connecting sleeves; 5. mounting a plate; 6. a connecting plate; 7. rotating the rod; 8. a first torsion spring; 9. a clamping block; 10. a first bolt; 11. a second torsion spring; 12. a second bolt; 13. A slider; 14. a card slot; 15. mounting a shell; 16. a slide hole; 17. connecting holes; 18. a baffle plate; 19. mounting holes; 20. A handle.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

The embodiment is as follows:

referring to fig. 1-4, the utility model relates to a connecting device of adjustable seat back, set up the connection base 2 that mounting groove 1 and both ends link up including the top, be connected with gag lever post 3 on connecting base 2's the lateral wall, the one end of gag lever post 3 slides and passes the lateral wall of connecting base 2 and extend to mounting groove 1 in, the cover is equipped with adapter sleeve 4 on one section that gag lever post 3 stretches into in mounting groove 1, the tip of connecting base 2 still rotates and is equipped with the mounting panel 5 that is used for being connected with the seat back, the fixed connecting plate 6 that are equipped with two mutual correspondences in bottom of connecting base 2, two fixed level is equipped with dwang 7 between the connecting plate 6, the one end of mounting panel 5 is rotated and is installed on dwang 7, still rotate between dwang 7 and be equipped with first torsional spring 8, the one end of first torsional spring 8 and the bottom butt of mounting panel 5, the other end of first torsional spring 8 and the bottom looks butt of connecting base 2. Set up like this and can effectually pass through the rotation of mounting panel 5 on dwang 7, adjust the angle of backrest on the mounting panel 5 to through the resilience force that is equipped with first torsion spring 8, make mounting panel 5 can carry out effectual gyration, and drive the backrest and restore.

Referring to fig. 1, 3 and 4, a limiting component for limiting the rotation of the mounting plate 5 is adjustably arranged between the connecting sleeve 4 and the mounting plate 5. Spacing subassembly includes fixture block 9, first bolt 10, second torsional spring 11, second bolt 12 and with second bolt 12 threaded connection's slider 13, fixture block 9 is located the tip and fixture block 9 bottom and mounting panel 5 fixed connection of connection base 2, one side that fixture block 9 is close to connection base 2 uses mounting panel 5 direction of rotation to set up a plurality of draw-in grooves 14 as the axle center, slider 13 slidable mounting is at the tank bottom of mounting groove 1, and slider 13's one end can with one of them draw-in groove 14 looks butt on the fixture block 9, still be equipped with installation shell 15 in the mounting groove 1 and on slider 13, the bottom of installation shell 15 and the tank bottom fixed connection of mounting groove 1, slider 13 slidable mounting is between installation shell 15 and mounting groove 1 tank bottom, installation shell 15 top is seted up rectangular shape and is opened the sliding hole 16 that has draw-in 14 one side to perpendicular to fixture block 9, second bolt 12 slides and passes sliding hole 16 and with slider 13 threaded connection, first bolt 10 and the tank bottom fixed threaded connection of mounting groove 1, second torsional spring 11 rotates the cover and establishes on first bolt 10, the one end and the second bolt 11 fixed connection of second bolt 4, second bolt 12 fixed connection. Set up like this and can effectually through promoting the gag lever post 3 to connecting in the base 2, drive second torsional spring 11 and rotate, the other end of second torsional spring 11 drives second bolt 12 and slider 13 and slides to fixture block 9 to through slider 13's tip and one of them draw-in groove 14 looks butt on the fixture block 9, the restriction rotates with fixture block 9 bottom fixed connection's mounting panel 5.

As shown in fig. 1, a connecting hole 17 for connecting a telescopic rod on a seat leg is further formed at the bottom of the mounting groove 1, and a baffle 18 for limiting the telescopic rod on the seat leg to stretch is further arranged on the connecting sleeve 4. The limiting mode is the prior art well known to those skilled in the art, and is not described herein in any greater detail. Still set up a plurality of rectangular shape mounting hole 19 on the mounting panel 5, be equipped with rectangular shape mounting hole 19, the different seat back of multiple hookup location of connection that can be convenient. The other end of gag lever post 3 extends to the direction of keeping away from connecting base 2, the tip that connecting base 2 was kept away from to gag lever post 3 still fixedly is equipped with handle 20.

When the seat cushion is installed, the seat cushion plate is fixedly installed at the top of the connecting base 2, the seat legs are installed at the bottom of the connecting base 2, and finally the seat cushion is installed on the installation plate 5 at the end of the connecting base 2.

When using, the user can directly sit on the seat board, when the angle of seat back needs to be adjusted, only need to rely on the seat back backward, at this moment, the mounting panel 5 of being connected with the seat back can drive the seat back and take place to rotate for connecting base 2, when rotating to certain angle, through promoting gag lever post 3 to connecting base 2 is interior, drive second torsional spring 11 and rotate, the other end of second torsional spring 11 drives second bolt 12 and slider 13 and prolongs sliding hole 16 and slide to fixture block 9, and one of them draw-in groove 14 looks butt on tip through slider 13 and fixture block 9, restriction and fixture block 9 bottom fixed connection's mounting panel 5 rotates, and reach the regulation of seat back angle, only need pull out gag lever post 3 when needing to reset, can make slider 13 follow the roll-off in draw-out groove 14, and make mounting panel 5 reset through the resilience force of first torsional spring 8.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a connecting device of adjustable seat back, includes that mounting groove (1) and both ends link up connection base (2), its characterized in that are seted up to the top: be connected with gag lever post (3) on the lateral wall of connection base (2), the one end of gag lever post (3) slides and passes the lateral wall of connecting base (2) and extends to mounting groove (1) in, gag lever post (3) stretch into one section in mounting groove (1) and go up the cover and be equipped with adapter sleeve (4), the tip of connecting base (2) still rotates and is equipped with mounting panel (5) that are used for being connected with the backrest, be equipped with restriction mounting panel (5) pivoted spacing subassembly between adapter sleeve (4) and mounting panel (5) adjustably.

2. An adjustable seat back attachment as claimed in claim 1, wherein: connect the fixed connecting plate (6) that are equipped with two mutual correspondences in bottom of base (2), two fixed level is equipped with dwang (7) between connecting plate (6), the one end of mounting panel (5) is rotated and is installed on dwang (7), still rotate between dwang (7) and be equipped with first torsional spring (8), the one end of first torsional spring (8) and the bottom butt of mounting panel (5), the other end of first torsional spring (8) and the bottom butt of being connected base (2).

3. An adjustable seat back attachment as claimed in claim 2, wherein: spacing subassembly includes fixture block (9), first bolt (10), second torsional spring (11), second bolt (12) and slider (13) with second bolt (12) threaded connection, fixture block (9) are located the tip of connecting base (2) and fixture block (9) bottom and mounting panel (5) fixed connection, one side that fixture block (9) are close to connecting base (2) uses mounting panel (5) direction of rotation as the axle center seted up a plurality of draw-in grooves (14), slider (13) slidable mounting is at the tank bottom of mounting groove (1), and the one end of slider (13) can with one of them draw-in groove (14) looks butt on fixture block (9), the fixed threaded connection of tank bottom of first bolt (10) and mounting groove (1), second torsional spring (11) rotate the cover and establish on first bolt (10), the one end and the adapter sleeve (4) fixed connection of second torsional spring (11), the other end and second bolt (12) fixed connection.

4. An adjustable seat back attachment as claimed in claim 3, wherein: still be equipped with installation shell (15) in mounting groove (1) and on slider (13), the bottom of installation shell (15) and the tank bottom fixed connection of mounting groove (1), slider (13) slidable mounting is between installation shell (15) and mounting groove (1) tank bottom, installation shell (15) top has been seted up rectangular shape and has been opened sliding hole (16) that have draw-in groove (14) one side to perpendicular to fixture block (9), second bolt (12) slide pass sliding hole (16) and with slider (13) screw thread fixed connection.

5. An adjustable seat back attachment as claimed in claim 1, wherein: the bottom of the mounting groove (1) is also provided with a connecting hole (17) for connecting a telescopic rod on a chair leg of the seat.

6. An adjustable seat back attachment as claimed in claim 5, wherein: the connecting sleeve (4) is also provided with a baffle (18) for limiting the extension of the telescopic rod on the chair leg of the chair.

7. An adjustable seat back attachment as claimed in claim 1, wherein: and a plurality of strip-shaped mounting holes (19) are also formed in the mounting plate (5).

8. An adjustable seat back attachment as claimed in claim 1, wherein: the other end of gag lever post (3) is to keeping away from the direction extension of connecting base (2), the tip that connects base (2) is kept away from in gag lever post (3) still fixedly is equipped with handle (20).