CN202800807U

CN202800807U - Backrest lifting device and chair

Info

Publication number: CN202800807U
Application number: CN2012203567903U
Authority: CN
Inventors: 吴志威
Original assignee: ASCENDENT FURNITURE Co Ltd
Current assignee: ASCENDENT FURNITURE Co Ltd
Priority date: 2012-07-23
Filing date: 2012-07-23
Publication date: 2013-03-20
Anticipated expiration: 2022-07-23

Abstract

The utility model provides a backrest lifting device and a chair. The backrest lifting device comprises a backrest body, a connection plate, a plug pin and a force-limiting slide block, wherein the force-limiting slide block is fixedly connected with the backrest body; the force-limiting slide block is provided with a slide groove and a force-limiting groove position, the connection plate is inserted in the slide groove and capable of sliding along the slide groove, the force-limiting groove position is step-shaped, and the plug pin is in force-limiting slide fit with the force-limiting groove position; the force-limiting slide block is provided with an in-situ return channel for recovering the plug pin; and a fixation element is fixedly connected with the connection plate, the plug pin is fixedly connected with the fixation element, and the fixation element is made of an elastic material. The backrest lifting device and the chair provided by the utility model have the beneficial effect that the height of the backrest body can be changed by the backrest lifting device, so that the backrest body has a lifting function, thus meeting the requirements of people with different heights on the height of the backrest body.

Description

Hoisting gear for backrest and chair

Technical field

The utility model relates to field of furniture, relates in particular to hoisting gear for backrest and chair.

Background technology

Present chair has been a kind of product of maturation, but the backrest of chair does not have the function of lifting at present, and it is inconsistent that the people of different heights requires backrest height, so present chair can not satisfy the user to the requirement of chair.

The utility model content

In order to solve the problems of the prior art, the utility model provides a kind of hoisting gear for backrest.

The utility model provides a kind of hoisting gear for backrest, comprises backrest body, connecting plate, latch, limiter sliding shoe, and described limiter sliding shoe and described backrest body are fixedly linked; Described limiter sliding shoe is provided with chute and limiter groove position, and described connecting plate inserts in the described chute and described connecting plate can slide along described chute, and described limiter groove position is stairstepping, and described latch and described limiter groove position are that limiter is slidingly matched; Described limiter sliding shoe is provided with the return passage of the original position of recovering for described latch; Described fixture and described connecting plate are fixedly linked, and described latch and described fixture are fixedly linked, and described fixture is made by elastomeric material.

As further improvement of the utility model, described return passage end positions is corresponding with described limiter groove position end positions respectively.

As further improvement of the utility model, described limiter sliding shoe is two, described connecting plate both sides of the edge are inserted respectively in two described chutes and can slide along two described chutes in described connecting plate both sides of the edge, and described latch two ends are that limiter is slidingly matched with two described limiter groove positions respectively.

As further improvement of the utility model, described fixture is made by plastic material.

As further improvement of the utility model, described limiter sliding shoe and described backrest body are bolted to connection.

The utility model also provides a kind of chair, comprises hoisting gear for backrest, chassis, and described connecting plate and described chassis are fixedly linked.

The beneficial effects of the utility model are: hoisting gear for backrest of the present utility model can change the height of backrest body, makes this backrest body have the function of lifting, satisfies the people of different heights to the requirement of backrest body height.

Description of drawings

Fig. 1 is backrest body construction schematic diagram of the present utility model.

Fig. 2 is connecting board structure schematic diagram of the present utility model.

Fig. 3 is anchor structure schematic diagram of the present utility model.

Fig. 4 is latch structure schematic diagram of the present utility model.

Fig. 5 is limiter sliding shoe structural representation of the present utility model.

Fig. 6 is hoisting gear for backrest structural representation of the present utility model.

Fig. 7 is the structural representation of hoisting gear for backrest one embodiment of the present utility model.

Fig. 8 is Chair structure schematic diagram of the present utility model.

The specific embodiment

To shown in Figure 7, the utility model discloses a kind of hoisting gear for backrest such as Fig. 1, comprise backrest body 1, connecting plate 2, latch 3, limiter sliding shoe 4, described limiter sliding shoe 4 is fixedly linked with described backrest body 1; Described limiter sliding shoe 4 is provided with chute 41 and limiter groove position 42, described connecting plate 2 inserts in the described chute 41 and described connecting plate 2 can slide along described chute 41, described limiter groove position 42 is stairstepping, and described latch 3 is slidingly matched for limiter with described limiter groove position 42; Described limiter sliding shoe 4 is provided with the return passage of the original position of recovering for described latch 3, and described fixture 5 is fixedly linked with described connecting plate 2, and described latch 3 is fixedly linked with described fixture 5, and described fixture 5 is made by elastomeric material.

Connecting plate 2 is made by steel plate, and connecting plate 2 is static with respect to backrest body 1, and backrest body 1 moves.Upwards spur backrest body 1, because fixture 5 is made by elastomeric material, backrest body 1 is in mobile process, fixture 5 produces strain, so that latch 3 can slide along limiter groove position 42, because limiter groove position 42 is stairstepping, backrest body 1 can only upwards spur, and can't move down, thereby guarantee that backrest body 1 is in the location of each height; When backrest body 1 upwards is pulled to highest order, this moment, latch 3 was positioned at limiter groove position 42 ends, be provided with the return passage below the limiter groove position 42, latch 3 carries out the return passage after moving to limiter groove position 42 ends, spur backrest body 1 downwards, latch 3 is got back to 42 tops, limiter groove position along the return passage, and can continue upwards to spur backrest body 1 this moment, thereby reaches the purpose of location backrest body 1 height.

Hoisting gear for backrest of the present utility model can change the height of backrest body 1, makes this backrest body 1 have the function of lifting, satisfies the people of different heights to backrest body 1 requirement for height.

Described return passage end positions is corresponding with described limiter groove position 42 end positions respectively.

For the slip that makes backrest body 1 more smooth and easy, and more firm to the altitude location of backrest body 1, described limiter sliding shoe 4 is two, described connecting plate 2 both sides of the edge are inserted respectively in two described chutes 41 and can slide along two described chutes 41 in described connecting plate 2 both sides of the edge, and described latch 3 two ends are slidingly matched for limiter with two described limiter groove positions 42 respectively.

Described fixture 5 is made by plastic material.

Described limiter sliding shoe 4 is bolted to connection with described backrest body 1.

As shown in Figure 8, the invention also discloses a kind of chair, this chair comprises hoisting gear for backrest described in the utility model, and this chair also comprises chassis 6, and described connecting plate 2 is fixedly linked with described chassis 6.This chair has backrest body 1 adjustable for height function, improves the comfort level of chair.

Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims

1. hoisting gear for backrest is characterized in that: comprise backrest body (1), connecting plate (2), and latch (3), limiter sliding shoe (4), fixture (5), described limiter sliding shoe (4) is fixedly linked with described backrest body (1); Described limiter sliding shoe (4) is provided with chute (41) and limiter groove position (42), described connecting plate (2) inserts in the described chute (41) and described connecting plate (2) can slide along described chute (41), described limiter groove position (42) is stairstepping, and described latch (3) is slidingly matched for limiter with described limiter groove position (42); Described limiter sliding shoe (4) is provided with the return passage of the original position of recovering for described latch (3); Described fixture (5) is fixedly linked with described connecting plate (2), and described latch (3) is fixedly linked with described fixture (5), and described fixture (5) is made by elastomeric material.

2. hoisting gear for backrest according to claim 1, it is characterized in that: described return passage end positions is corresponding with described limiter groove position (42) end positions respectively.

3. according to claim 1 to 2 each described hoisting gear for backrest, it is characterized in that: described limiter sliding shoe (4) is two, described connecting plate (2) both sides of the edge are inserted respectively in two described chutes (41) and can slide along two described chutes (41) in described connecting plate (2) both sides of the edge, and described latch (3) two ends are slidingly matched for limiter with two described limiter groove positions (42) respectively.

4. hoisting gear for backrest according to claim 3, it is characterized in that: described fixture (5) is made by plastic material.

5. hoisting gear for backrest according to claim 4 is characterized in that: described limiter sliding shoe (4) is bolted to connection with described backrest body (1).

6. chair with each described hoisting gear for backrest of claim 1 to 5 is characterized in that: comprise hoisting gear for backrest, chassis (6), described connecting plate (2) is fixedly linked with described chassis (6).