CN214711590U

CN214711590U - Seat-leaning integrated linkage mechanism

Info

Publication number: CN214711590U
Application number: CN202120518039.8U
Authority: CN
Inventors: 石章能; 张明; 陆智; 李德山; 石强
Original assignee: Borgerui Chongqing Technology Co ltd
Current assignee: Borgerui Chongqing Technology Co ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-11-16
Anticipated expiration: 2031-03-11

Abstract

The utility model discloses a backrest-seat integrated linkage mechanism, which comprises a supporting base, a seat cushion and a backrest, wherein the seat cushion is arranged on the supporting base, the lower part of the backrest is connected with the supporting base, a linkage seat is hinged on the supporting base and is fixedly connected with the backrest; the rear portion of seatpad with support the base and articulate, this linkage seat with be equipped with the lifting connecting rod between the seatpad, the both ends of this lifting connecting rod respectively with the linkage seat with the seatpad is articulated. The remarkable effect of the scheme is that the backrest and the seat cushion can synchronously rotate along with the linkage seat, the structure is simple, the operation is convenient, only one power device needs to be configured, and the cost can be reduced.

Description

Seat-leaning integrated linkage mechanism

Technical Field

The utility model relates to a functional adjustment mechanism of seat, concretely relates to synchronous rotating device of back and seat.

Background

Office chairs are important office furniture. Along with the demand of office crowd to office chair travelling comfort constantly increases, office chair is constantly developing to multi-functional direction gradually. At the present stage, the multifunctional office chair mainly needs to meet the following requirements besides meeting the requirements of people for sitting:

1. the seat backrest can be inclined, and the inclined angle can be adjusted and fixed so as to meet different lying requirements of passengers, such as half lying or full lying;

2. the seat cushion of the seat can be turned over by a certain angle, so that the front part of the seat cushion is upward and the rear part of the seat cushion is downward, and the knees of a passenger are raised to different degrees;

3. when the passenger has a rest, the legs can be supported by the leg supports, so that the comfort is improved.

In order to meet the above requirements, engineers in related fields have partial research results, and can meet corresponding requirements independently. However, due to lack of overall planning, on one hand, the structure adopted by the prior art is not simplified enough, and on the other hand, after the functions are combined by adopting the prior art, the office chair has a complex and bloated structure, and the structures corresponding to the functions are seriously interfered with each other, so that the office chair has the defects of heavy weight, insufficient aesthetic property and the like. Therefore, it is necessary to plan the implementation of each requirement as a whole again to integrate the functions. During the integration process, various structural members and linkage relations need to be planned and designed again.

Specifically, in the prior art, when the backrest and the seat pan/seat cushion are rotationally adjusted, independent adjustment is mostly performed, the backrest and the seat pan/seat cushion need to be provided with independent turning structures and power devices, the synchronism is not strong, and the cost is high.

Disclosure of Invention

The utility model provides an integrative link gear of back to seat, its technical scheme as follows:

the utility model provides an lean on integrative link gear of seat, is including supporting base, seatpad and back, the seatpad sets up on supporting the base, the lower part of back with it connects to support the base, and its key lies in: a linkage seat is hinged on the supporting base and is fixedly connected with the backrest; the rear portion of seatpad with support the base and articulate, this linkage seat with be equipped with the lifting connecting rod between the seatpad, the both ends of this lifting connecting rod respectively with the linkage seat with the seatpad is articulated.

The beneficial effects of this scheme of adoption are that, through the connection of linkage seat, back and seat seatpad can rotate in step thereupon, simple structure, the operation of being convenient for, and only need dispose a power device, ability reduce cost.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic plan view of the present invention;

FIG. 3 is a cross-sectional view X-X' of FIG. 2;

fig. 4 is a schematic view showing the connection relationship of the lift link 6, the interlocking seat 7, and the seat cushion 8.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in fig. 1, 2, 3 and 4, an integrated backrest and seat linkage mechanism comprises a supporting base 9, a seat cushion 8 and a backrest, wherein the seat cushion 8 is arranged on the supporting base 9, the lower part of the backrest is connected with the supporting base 9, a linkage seat 7 is hinged on the supporting base 9, and the linkage seat 7 is fixedly connected with the backrest; the rear portion of seatpad 8 with support base 9 is articulated, this linkage seat 7 with be equipped with lifting connecting rod 6 between the seatpad 8, the both ends of this lifting connecting rod 6 respectively with linkage seat 7 with seatpad 8 is articulated.

The supporting base 9 comprises a shell bottom 91, the edges of the shell bottom 91 are respectively turned upwards to form shell flanges 92, the inner walls of the two shell flanges 92 which are right and left are respectively hinged with the linkage seat 7, and the linkage seats 7 are respectively connected with the lifting connecting rods 6.

The linkage seat 7 is fixedly connected with the backrest through a backrest connecting plate 4; the backrest connecting plate 4 and the linkage seats 7 are fixedly connected relatively, specifically, the backrest connecting plate 4 is arranged on the outer side of the shell flange 92 corresponding to each linkage seat 7, the backrest connecting plate 4 is fixedly connected with the hinge shaft of the linkage seat 7, the backrest connecting plate 4 extends towards the rear of the seat cushion 8 and then is turned inwards to form a backrest fixing part, backrest fixing holes are formed in the backrest fixing part, and the backrest connecting plates 4 on the left side and the right side are connected with the same backrest (not shown in the figure).

Linkage seat 7 impels seat 71 and linkage propulsion arm 72 including the linkage, linkage propulsion seat 71 with correspond the casing turn-ups 92 is articulated, the linkage impels the one end of arm 72 with the linkage impels the seat 71 to be connected, the other end of linkage impels the arm 72 to stretch out forward, this linkage impels the front end of arm 72 with lifting connecting rod 6 is articulated, controls just right two on the casing turn-ups 92 through lifting synchronizing bar 73 fixed connection between the linkage seat 7, lifting synchronizing bar 73's both ends respectively with correspond linkage impels seat 71 fixed connection, lifting synchronizing bar 73 with the junction that linkage impels seat 71 is equipped with additional strengthening.

To accommodate different regulatory requirements: a lifting constraint track is further arranged on the support base 9, and a hinge point of the lifting connecting rod 6 and the linkage propelling arm 72 is limited by the lifting constraint track and moves according to a set constraint track.

The specific constrained trajectory scheme may be: the track restraining device is characterized in that a track restraining vertical plate is arranged on the supporting base 9, a clamping groove is formed in the track restraining vertical plate, the lifting connecting rod 6 is hinged to the linkage seat 7 through a track restraining shaft 5, and one end of the track restraining shaft 5 is inserted into the clamping groove and moves along the lifting restraining track.

According to the trend of the lifting constraint track:

when the lifting constraint track is a constraint arc, and the center of the constraint arc coincides with the hinge point of the linkage propulsion seat 71 and the support base 9, the linkage propulsion arm 72 and the linkage propulsion seat 71 may be hinged or fixed.

When the lifting constraint track is arbitrarily set and is not an arc, or the center of the arc is not coincident with the hinge point of the linkage propulsion seat 71 and the support base 9, the linkage propulsion arm 72 and the linkage propulsion seat 71 should be hinged.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides an lean on integrative link gear of seat, is including supporting base (9), seatpad (8) and back, seatpad (8) set up on supporting base (9), the lower part of back with support base (9) and connect its characterized in that: a linkage seat (7) is hinged on the supporting base (9), and the linkage seat (7) is fixedly connected with the backrest;

the rear portion of seatpad (8) with support base (9) are articulated, this linkage seat (7) with be equipped with lifting connecting rod (6) between seatpad (8), the both ends of this lifting connecting rod (6) respectively with linkage seat (7) with seatpad (8) are articulated.

2. The integrated headrest linkage mechanism according to claim 1, wherein: the linkage seat (7) is fixedly connected with the backrest through a backrest connecting plate (4);

the backrest connecting plate (4) and the linkage seat (7) are relatively and fixedly connected.

3. The integrated headrest linkage mechanism according to claim 2, wherein: the supporting base (9) comprises a shell bottom (91), the edge of the shell bottom (91) is turned upwards to form a shell flange (92), the inner walls of the two shell flanges (92) which are right and left are hinged with the linkage seat (7) respectively, and the linkage seat (7) is connected with the lifting connecting rod (6) respectively.

4. The integrated headrest linkage mechanism according to claim 3, wherein: the backrest connecting plate (4) is arranged on the outer side of the shell flanging (92) corresponding to each linkage seat (7), and the backrest connecting plate (4) is fixedly connected with a hinge shaft of the linkage seat (7);

the backrest connecting plate (4) extends towards the rear part of the seat cushion (8) and then is turned inwards to form a backrest fixing part.

5. The headrest integrated linkage mechanism according to claim 3 or 4, wherein: linkage seat (7) impel seat (71) and linkage propulsion arm (72) including the linkage, linkage propulsion seat (71) with correspond casing turn-ups (92) are articulated, the linkage impel the one end of arm (72) with linkage propulsion seat (71) are connected, the other end of linkage propulsion arm (72) stretches out forward, the front end of this linkage propulsion arm (72) with lifting connecting rod (6) are articulated.

6. The integrated headrest linkage mechanism according to claim 5, wherein: and a lifting constraint track is further arranged on the supporting base (9), and a hinged point of the lifting connecting rod (6) and the linkage propelling arm (72) is limited by the lifting constraint track and moves according to a set constraint track.

7. The integrated headrest linkage mechanism according to claim 6, wherein: the lifting restraint track is characterized in that a clamping groove is formed in the supporting base (9), the clamping groove is arranged along the lifting restraint track, the lifting connecting rod (6) is hinged to the linkage seat (7) through a track restraint shaft (5), and one end of the track restraint shaft (5) is inserted into the clamping groove and moves along the lifting restraint track.

8. The headrest integrated linkage mechanism according to claim 6 or 7, wherein: the linkage propulsion arm (72) is hinged or fixed with the linkage propulsion seat (71), the lifting constraint track is a constraint arc, and the circle center of the constraint arc is overlapped with the hinged point of the linkage propulsion seat (71) and the support base (9).

9. The headrest integrated linkage mechanism according to claim 6 or 7, wherein: the linkage propulsion arm (72) is hinged with the linkage propulsion seat (71), and the lifting constraint track is set randomly.