CN214386840U

CN214386840U - Seat turnover locking mechanism

Info

Publication number: CN214386840U
Application number: CN202120515390.1U
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: 2021-10-15
Anticipated expiration: 2031-03-11

Abstract

The utility model discloses a seat upset locking mechanical system, including supporting base and controllable air spring, be equipped with the seat on this support base and lean on the swivel mount, this seat lean on the swivel mount with it is articulated to support the base, the seat is leaned on the swivel mount and is in around its intersection point support and rotate on the base, the one end of controllable air spring with it is articulated to support the base, the other end of controllable air spring with the seat is leaned on the swivel mount and is articulated. Adopt the present case showing the effect be, through setting up controllable air spring, can rotate the regulation to the back and/or the seatpad of connection on the seat leans on the swivel mount to can lock it and return from, simple structure, the cost is lower.

Description

Seat turnover locking mechanism

Technical Field

The utility model relates to a functional adjustment mechanism of seat, concretely relates to locking mechanical system of back and/or seatpad around the upset.

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, after the backrest and the seat pan/cushion are rotationally adjusted and locked, the backrest and the seat pan/cushion generally do not have a self-recovery function, and need to be manually operated in a reverse direction or be provided with an electric mechanism for recovery, so that the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a can rotate the device of adjusting time locking and self return at back, seat basin/seatpad, its technical scheme as follows:

the utility model provides a seat upset locking mechanical system, the main points lie in: including supporting base and controllable air spring, be equipped with the seat on this supports the base and lean on the swivel mount, should lean on the swivel mount with it is articulated to support the base, the seat is leaned on the swivel mount and is in around its pin joint support and rotate on the base, the one end of controllable air spring with it is articulated to support the base, the other end of controllable air spring with it is articulated to lean on the swivel mount.

The beneficial effect of this scheme of adoption is that, through setting up controllable air spring, can rotate the regulation to connecting back and/or the seatpad that the swivel mount was leaned on to the seat to can lock it and return from, simple structure, the cost is lower.

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 between the lifting link 6, the linking base 7 and the seat cushion 8 from a first perspective;

fig. 5 is a schematic view showing the connection relationship between the lifting link 6, the interlocking seat 7 and the seat cushion 8 in a second view.

Detailed Description

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

As shown in fig. 1 to 5, a seat turnover locking mechanism includes a supporting base 9 and a controllable gas spring 2, a seating swivel base 7 is provided on the supporting base 9, the seating swivel base 7 is located at the rear portion of the supporting base 9, the seating swivel base 7 is hinged to the supporting base 9, the seating swivel base 7 rotates on the supporting base 9 around its hinge point, one end of the controllable gas spring 2 is hinged to the supporting base 9, and the other end of the controllable gas spring 2 is hinged to the seating swivel base 7.

The seat leans on and is equipped with first articulated seat 74 on swivel mount 7 be equipped with the articulated seat 94 of second on supporting base 9, the articulated seat 94 of second is located support base 9's front portion, controllable gas spring 2's both ends respectively with first articulated seat 74 with the articulated seat 94 of second is articulated.

Support and still be equipped with seatpad 8 on the base 9, this seatpad 8 the rear portion with it is articulated to support the base 9, the seat is leaned on swivel mount 7 and is connected with lifting connecting rod 6, lifting connecting rod 6 one end with the seat is leaned on swivel mount 7 articulated, lifting connecting rod 6 the other end with seatpad 8 is articulated.

Specifically, the method comprises the following steps: the seat leans on swivel mount 7 to impel seat 71 and linkage propulsion arm 72 including the linkage, linkage propulsion seat 71 with it is articulated to support base 9, the linkage impel the one end of arm 72 with the linkage impels seat 71 to be 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 is articulated, first articulated seat 74 is fixed on the linkage impels seat 71.

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 seat leaning rotary 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.

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 opposite to each other at the left side are respectively hinged with the seat turning seat 7, and the seat turning seat 7 is respectively connected with the lifting connecting rod 6; the seat leaning rotary bases 7 on the two shell flanges 92 which are right and left opposite are fixedly connected through lifting synchronous rods 73, two ends of each lifting synchronous rod 73 are respectively and fixedly connected with the corresponding linkage propulsion base 71 or the corresponding first hinged base 74, and the second hinged base 94 is fixed on the shell bottom 91.

The seat-leaning swivel base 7 is also connected with a backrest component, and the lower part of the backrest component is fixedly connected with the seat-leaning swivel base 7. Specifically, the back subassembly includes back body and back connecting plate 4 the casing turn-ups 92 outside corresponds every the seat is leaned on swivel mount 7 and is equipped with respectively back connecting plate 4, back connecting plate 4 with seat is leaned on swivel mount 7's articulated shaft fixed connection, back connecting plate 4 to the rear of seatpad 8 is extended and is inwards turned over again and form the back fixed part, is equipped with back fixed orifices on this back fixed part, the back connecting plate 4 of the left and right sides all with same back body (not shown in the figure) is connected.

Controllable air spring 2 is prior art, and it has the function that optional position can stop to have the unblock cable, through setting up handle or attacker operation unblock cable, can let controllable air spring 2 unblock, controllable air spring 2 can stretch out and draw back automatically under the unblock state, and controllable air spring 2 can not stretch out and draw back under the lock-out state.

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. A seat flip locking mechanism characterized in that: including supporting base (9) and controllable air spring (2), be equipped with the seat on this support base (9) and lean on swivel mount (7), this seat lean on swivel mount (7) with it is articulated to support base (9), the seat is leaned on swivel mount (7) and is wound its pin joint and rotate on supporting base (9), the one end of controllable air spring (2) with it is articulated to support base (9), the other end of controllable air spring (2) with the seat is leaned on swivel mount (7) articulated.

2. The seat tumble lock mechanism according to claim 1, characterized in that: be equipped with first articulated seat (74) on seat is leaned on swivel mount (7) support and be equipped with articulated seat of second (94) on base (9), the both ends of controllable gas spring (2) respectively with first articulated seat (74) with the articulated seat of second (94) is articulated.

3. The seat tumble lock mechanism according to claim 2, characterized in that: the seating swivel (7) is located at the rear of the support base (9), and the second articulated seat (94) is located at the front of the support base (9).

4. A seat tumble locking mechanism according to claim 1, 2 or 3, characterized in that: the seat-back rotating seat (7) is also connected with a backrest assembly, and the lower part of the backrest assembly is fixedly connected with the seat-back rotating seat (7).

5. The seat tumble lock mechanism according to claim 2 or 3, characterized in that: support still be equipped with seatpad (8) on base (9), the rear portion of this seatpad (8) with it is articulated to support base (9), the seat is leaned on swivel mount (7) and is connected with lifting connecting rod (6), the one end of lifting connecting rod (6) with the seat is leaned on swivel mount (7) articulated, the other end of lifting connecting rod (6) with seatpad (8) are articulated.

6. The seat tumble lock mechanism according to claim 5, characterized in that: seat leans on swivel mount (7) to impel seat (71) and linkage propulsion arm (72) including the linkage, linkage propulsion seat (71) with it is articulated to support base (9), the one end of linkage propulsion 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, first articulated seat (74) are fixed on linkage propulsion seat (71).

7. The seat tumble lock mechanism according to claim 6, characterized in that: 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.