CN110613255B

CN110613255B - Comfortable seat with liftable and combined backrest

Info

Publication number: CN110613255B
Application number: CN201911087172.6A
Authority: CN
Inventors: 管伟东
Original assignee: ZHEJIANG HAOGUO FURNITURE CO LTD
Current assignee: ZHEJIANG HAOGUO FURNITURE CO LTD
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2022-11-11
Anticipated expiration: 2039-11-08
Also published as: CN110613255A

Abstract

The invention discloses a comfortable seat with a liftable and combinable backrest, which comprises backrest bodies, a fixed support and a connecting support, wherein the plurality of backrest bodies form the backrest for supporting the back of a human body; meanwhile, the lifting function of the backrest body on the fixing frame can be realized through the lifting support, and the backrest is further suitable for people with different heights to use.

Description

Comfortable seat with liftable and combined backrest

Technical Field

The invention relates to the technical field of seats, in particular to a comfortable seat with a liftable and combinable backrest.

Background

The chair in the existing market mainly adopts a sponge chair back or a plastic frame grid cloth chair back, the chair back structure is fixed, the back of a human body is fixedly supported, and people are easy to fatigue after sitting for a long time, difficult to move and poor in comfort.

Disclosure of Invention

The invention aims to provide a comfortable seat with a liftable and combinable backrest, which comprises a backrest body, a fixed support and a connecting support, wherein the backrest body is formed by a plurality of backrest bodies and is used for supporting the back of a human body, and the backrest body is movably connected with the lifting support.

The technical scheme for solving the problems is as follows: a comfortable seat with a liftable and combinable backrest comprises a seat, a fixed frame arranged on the seat and a plurality of backrest bodies arranged on the fixed frame in a liftable manner through a connecting support, wherein one side of each backrest body is hinged with the outer wall of a moving piece in the connecting support through a first connecting rod, the other side of each backrest body is hinged with the outer wall of the connecting support through a second connecting rod, and the moving piece can move in the connecting support along the extending direction of one end of the connecting support; the backrest body deflects to drive the first connecting rod to overturn so that the moving piece is pushed to extrude the buffer spring, and the buffer spring can generate elasticity to stop the further movement of the moving piece.

Preferably, be equipped with a plurality of first screw holes, screw rod and the draw-in groove of arranging in proper order along vertical direction on the mount, the linking bridge both sides are equipped with the connecting plate that has the second screw hole outwards with extending to make it pass first screw hole and second screw hole in proper order through precession screw rod, accomplish right the linking bridge is in the injecing of position on the mount.

Preferably, the backrest body comprises a linear backrest body and an arc backrest body, and the back surface of the linear backrest body is hinged with one end of the first connecting rod; the back of the arc-shaped backrest body is hinged with one end of the second connecting rod.

Preferably, a flexible pad is further disposed on the linear backrest body.

Preferably, the moving member is a straight rod, a rubber body is further sleeved on the straight rod, and a plurality of protruding sealing support rings which are abutted to the inner wall of the connecting support are arranged on the rubber body.

Preferably, the bottom of the connecting support is also provided with air holes.

Preferably, the connecting bracket is a cylinder.

Preferably, still including locating the base of seat support below, rotate on the base and install the universal wheel.

The invention has the beneficial effects that: the comfortable seat with the liftable and combinable backrest comprises backrest bodies, a fixed support and a connecting support, wherein the backrest bodies form the backrest for supporting the back of a human body, and are movably connected with the lifting support, so that the backrest bodies can be extruded to deflect to a certain degree when the human body leans against the backrest bodies, and can reciprocate through a buffer spring to facilitate the relaxation of the back of the human body and prevent the back of the human body from being fatigued; still can realize the raising and lowering functions of back body on the mount through lifting support simultaneously, and then be fit for different height crowds and use.

Drawings

Fig. 1 is a structural view of a comfortable seat with a backrest capable of being lifted and combined.

Fig. 2 is a structural diagram of a fixing frame according to an embodiment of the invention.

Fig. 3 is a structural diagram of a connecting bracket according to an embodiment of the invention.

Fig. 4 is a schematic top view of a connecting bracket and a moving member according to an embodiment of the invention.

Fig. 5 is a side view of a second connecting rod according to an embodiment of the invention.

Fig. 6 is a structural diagram of a buffer spring according to an embodiment of the invention.

Fig. 7 is a structural view of a sealing support ring of a rubber body according to an embodiment of the present invention.

In the figure:

1-a chair seat; 2-a fixing frame; 21-a first threaded hole; 22-a card slot; 3-connecting a bracket; 31-a moving member; 32-a connecting plate; 321-a second threaded hole; 4-a backrest body; 41-straight type back support body; 42-arc backrest body; 5-a first link; 6-a second link; 7-a buffer spring; 8-a flexible mat; 9-a rubber body; 91-sealing the branch ring; 10-air holes; 11-a base; 12-universal wheel.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention and the technical solutions in the prior art, the following will describe the specific embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, without inventive effort, other drawings and embodiments can be derived from them, and the invention is not limited to this embodiment.

Please refer to fig. 1 to 7. The comfortable seat with the liftable and combinable backrest comprises a seat 1, a fixed frame 2 arranged on the seat 1 and a plurality of backrest bodies 4 arranged on the fixed frame 2 in a liftable manner through a connecting support 3, wherein one side of each backrest body 4 is hinged with the outer wall of a moving piece 31 in the connecting support 3 through a first connecting rod 5, the other side of each backrest body 4 is hinged with the outer wall of the connecting support 3 through a second connecting rod 6, and the moving piece 31 can move in the connecting support 3 along the extending direction of one end of the connecting support; a buffer spring 7 is abutted between the moving part 31 and the inner wall of the connecting support 3, and when the backrest body 4 deflects to drive the first connecting rod 5 to overturn so that the moving part 31 is pushed to extrude the buffer spring 7, the buffer spring 7 can generate elasticity to stop the further movement of the buffer spring.

It should be added that one side of the backrest body 4 is hinged to the outer wall of the moving member 31 through the first connecting rod 5, specifically, a protrusion (not shown in the figure) is provided on the back of the backrest body 4 and the outer wall of the moving member 31 to be rotatably connected to the first connecting rod 5; the other side of the backrest body 4 is hinged with the outer wall of the connecting bracket 3 through the second connecting rod 6, and the specific hinge principle is the same as the above, except that after the connecting bracket 3 is fixed in position, the relative position of the second connecting rod 6 is fixed, and the first connecting rod 5 can be overturned, so that the backrest body 4 can be deflected when being squeezed by a human backrest.

Please refer to fig. 2 and fig. 3 again. In this embodiment, the connecting bracket 3 is arranged on the fixing frame 2 in a lifting manner, and a better embodiment is as follows: can be equipped with a plurality of first screw holes 21, screw rod (not shown in the figure) and the draw-in groove 22 that arrange in proper order along vertical direction on the mount 2, linking bridge 3 both sides are equipped with the connecting plate 32 that has second screw hole 321 outwards to make it pass first screw hole 21 and second screw hole 321 in proper order through the precession screw rod, it is right to accomplish linking bridge 3 is in the injecing of mount 2 upper position, the benefit of doing so can be used for adjusting the distance between two adjacent back bodies 4 in the vertical direction, and then reach the height size of controlling whole back, in order to be fit for different height crowds and use.

Please refer to fig. 4 again. In this example, the backrest body 4 may include a linear backrest body 41 and an arc backrest body 42, and a back surface of the linear backrest body 41 is hinged to one end of the first link; the back of the arc-shaped backrest body 42 is hinged with one end of the second connecting rod; the linear backrest body 41 can be further provided with a flexible cushion 8, so that the backrest has the advantages that the backrest body 4 is divided into two parts, one part of the backrest is arc-shaped and can be well attached to a human body, and the backrest can be abutted conveniently; meanwhile, two backrest bodies 4 in the horizontal direction (see fig. 1) can be enclosed into a cover-like structure, and also play a certain role in protection, such as blocking wind and sand.

Please refer to fig. 4, 5 and 6 again. In this example, the moving member 31 may be a straight rod, the straight rod is further sleeved with a rubber body 9, the rubber body 9 is provided with a plurality of raised sealing support rings 91 which abut against the inner wall of the connecting support 3, and this has the advantage that, in order to prevent that, when the seat is used, especially some people with large weight use, the weight of the human body suddenly and completely leans on the backrest body 4, and large impact is caused to the human body to cause the moving member 31 to move too fast, and damage is caused to the partial structure of the moving member and the buffer spring 7, so as to prevent the occurrence of the above situation, the rubber body 9 is arranged to increase the friction force between the moving member 31 and the inner wall of the connecting support to a certain extent, and meanwhile, the rubber body 9 may further be provided with the raised sealing support rings 91, so as to further increase the friction force.

Please refer to fig. 6 again. In this embodiment, the bottom of the connecting bracket 3 may further be provided with an air vent 10, so as to facilitate the air inside the connecting bracket 3 to keep flowing with the outside through the air vent 10 when the moving member 31 moves, and keep the inside and outside air pressures substantially the same, and meanwhile, when the moving member 31 moves too fast, the air pressure generated due to the small aperture of the air vent 10 increases suddenly and stops the moving member 31 from moving fast to a certain extent.

In this embodiment, the connecting bracket 3 may be a cylinder for accommodating the moving member 31, and the cross section of the moving member 31 is the same as that of the cylinder, specifically, the two shapes match with each other, so that the moving member 31 can move in the connecting bracket 3.

Please refer to fig. 1 again. In this embodiment, a base 11 disposed below the seat 1 may be further included, and a universal wheel 12 is rotatably mounted on the base 11, so as to facilitate the movement of the chair.

Specific embodiments of the present invention have been described above in detail. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by logical analysis, reasoning or limited experiments in the prior art after the present inventive concept have been conceived by those skilled in the art should be within the scope of protection defined by the present claims.

Claims

1. A comfortable seat with a liftable and combinable backrest is characterized in that: the chair comprises a chair seat (1), a fixing frame (2) arranged on the chair seat (1) and a plurality of backrest bodies (4) arranged on the fixing frame (2) through a connecting support (3) in a lifting manner, wherein one side of each backrest body (4) is hinged with the outer wall of a moving piece (31) in the connecting support (3) through a first connecting rod (5), the other side of each backrest body (4) is hinged with the outer wall of the connecting support (3) through a second connecting rod (6), and the moving piece (31) can move in the connecting support (3) along the extending direction of one end of the connecting support; a buffer spring (7) is abutted between the moving piece (31) and the inner wall of the connecting support (3), the moving piece (31) is a straight rod, a rubber body (9) is further sleeved on the straight rod, and a plurality of raised sealing support rings (91) which are abutted with the inner wall of the connecting support (3) are arranged on the rubber body (9); after the connecting support (3) is fixed, the relative position of the second connecting rod (6) is fixed, and when the backrest body (4) deflects to drive the first connecting rod (5) to overturn so that the moving piece (31) is pushed to extrude the buffer spring (7), the buffer spring (7) can generate elastic force to stop the buffer spring (7) from further moving.

2. The back rest liftable and combinable comfort seat according to claim 1, wherein: be equipped with a plurality of first screw holes (21), screw rod and draw-in groove (22) of arranging in proper order along vertical direction on mount (2), linking bridge (3) both sides are equipped with connecting plate (32) that have second screw hole (321) outwards with extending to make it pass first screw hole (21) and second screw hole (321) in proper order through precession screw rod, accomplish right linking bridge (3) are in the injecing of mount (2) upper position.

3. The back rest liftable and combinable comfort seat according to claim 1, wherein: the backrest body (4) comprises a linear backrest body (41) and an arc backrest body (42), and the back of the linear backrest body (41) is hinged with one end of the first connecting rod; the back of the arc-shaped backrest body (42) is hinged with one end of the second connecting rod.

4. A liftable and combinable comfortable seat of backrest according to claim 3, characterized in that: the linear backrest body (41) is also provided with a flexible pad (8).

5. The back rest liftable and combinable comfort seat according to claim 1, wherein: the bottom of the connecting bracket (3) is also provided with an air hole (10).

6. The back rest liftable and combinable comfort seat according to claim 1, wherein: the connecting bracket (3) is a cylinder.

7. The back rest liftable and combinable comfort seat according to claim 1, wherein: the chair is characterized by further comprising a base (11) arranged below the chair seat (1), and universal wheels (12) are rotatably arranged on the base (11).