CN111568085B

CN111568085B - Chair

Info

Publication number: CN111568085B
Application number: CN202010494611.1A
Authority: CN
Inventors: 叶盖山; 蒋庆; 章航; 叶帅; 陈金峰; 徐新凯; 陈越; 樊勇海; 毛金有
Original assignee: Zhejiang Shanfeng Teaching Aids Co ltd
Current assignee: Zhejiang Shanfeng Teaching Aids Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2023-07-04
Anticipated expiration: 2040-06-03
Also published as: CN111568085A

Abstract

The invention discloses a chair, which comprises a chair base, a first turnover part, a second turnover part, a pushing part and a seat plate, wherein the chair base is provided with a backrest, a fixed baffle plate and a supporting body; the first overturning part is provided with a first hole body and a second hole body; the second overturning part is provided with a third hole body and a fourth hole body; the pushing part is provided with a connecting hole, an executing device, a first triggering device, an elastic body and a sliding protruding point, wherein the connecting hole is hinged with the supporting body, the sliding protruding point is arranged in the seat groove, and the elastic body is connected with the executing device and the supporting body. The invention adopts the connecting rod mechanism as the overturning actuating mechanism to realize the overturning of the seat plate and simultaneously provide reliable overturning support; the air spring mechanism provides energy for overturning the seat plate, automatic overturning is realized after triggering, and meanwhile, the elastic body completes resetting of the air spring mechanism; the whole surface overturning mode achieves the whole day backlight purpose of one side surface of the seat plate, so that the comfort degree of the backlight side surface is ensured.

Description

Chair

Technical Field

The invention relates to the technical field of seats, in particular to a chair.

Background

Along with the improvement of living standard, the requirements of people on daily necessities are also higher and higher, and chairs are widely used as indispensable products in life.

Common outdoor chairs are usually fixed, namely, a seat main body is fixed in a specific area, a seat plate is fixedly connected with the seat main body, and when the weather is hot, the seat plate is burnt by sun, and sitting is quite uncomfortable.

In the prior art, there is also an outdoor chair with a foldable seat, which aims to reduce the influence of sun exposure as much as possible and improve the use comfort of users, but the seat surface of the seat is still scalded due to the influence of solar radiation in a period of time because the light radiation angle is continuously changed along with the change of time, so that further improvement is needed.

Disclosure of Invention

The invention provides a chair aiming at the defects in the prior art.

In order to solve the technical problems, the invention is solved by the following technical scheme: a chair comprises a chair base, a first turnover part, a second turnover part, a pushing part and a seat plate;

the chair base comprises a backrest, a fixed baffle plate and a supporting body, wherein the backrest is connected with the fixed baffle plate, and the fixed baffle plate is connected with the supporting body through a screw rod;

the seat plate is arranged on the chair base, and a seat plate groove, a first threaded hole and a second threaded hole are formed in the seat plate;

the first overturning part is provided with a first hole body and a second hole body, the first hole body is hinged with a first threaded hole of the seat plate, and the second hole body is hinged with the supporting body;

the second overturning part is provided with a third hole body and a fourth hole body, the third hole body is hinged with a second threaded hole of the seat plate, and the fourth hole body is hinged with the supporting body;

the pushing part comprises a connecting hole, an executing device, a first triggering device, an elastic body and a sliding protruding point, wherein the connecting hole is hinged with the supporting body, the sliding protruding point is arranged in the seat groove, and the elastic body is connected with the executing device and the supporting body.

In the above aspect, preferably, the chair base is made of hard plastic or metal.

In the above aspect, preferably, the first turning portion is a connecting rod, and the mounting position of the second hole body is located on a symmetry axis of the first threaded hole and the second threaded hole.

In the above aspect, preferably, the second turning portion is a connecting rod, and the installation position of the fourth hole body is located on the symmetry axis of the first threaded hole and the second threaded hole, and the installation position of the fourth hole body is located right below the installation position of the second hole body.

In the above scheme, preferably, the seat plate comprises a first seat surface and a second seat surface, the first threaded hole and the second threaded hole are arranged on two sides of the central rotating hole and are symmetrically arranged, and the seat plate groove is provided with a first stop piece and a second stop piece. The beneficial effects are that: the executing device can stably move in the seat groove, and the seat can be stably controlled to turn over and reset.

Compared with the prior art, the invention has the beneficial effects that:

the invention adopts the connecting rod mechanism as the overturning actuating mechanism to realize the overturning of the seat plate and simultaneously provide reliable overturning support; the air spring mechanism provides energy for overturning the seat plate, automatic overturning is realized after triggering, and meanwhile, the elastic body completes resetting of the air spring mechanism; the whole surface overturning mode achieves the whole day backlight purpose of one side surface of the seat plate, so that the comfort degree of the backlight side surface is ensured.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic view of the chair base structure of the present invention.

Fig. 3 is a schematic structural view of a first turning part and a second turning part according to the present invention.

Fig. 4 is a schematic diagram of a pushing portion in embodiment 1 of the present invention.

Fig. 5 is a schematic view of the structure of the seat plate of the present invention.

Fig. 6 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 7 is a schematic diagram of a pushing portion structure in embodiment 2 of the present invention.

Fig. 8 is a schematic structural diagram of embodiment 3 of the present invention.

Fig. 9 is a schematic diagram of the structure of the adjusting part in embodiment 3 of the present invention.

Detailed Description

The invention is described in further detail below with reference to the attached drawings and detailed description:

example 1:

with reference to figures 1 to 5 of the drawings,

a chair comprises a chair base 1, a first turnover part 2, a second turnover part 3, a pushing part 4 and a seat 5.

The chair base 1 comprises a backrest 101, a fixed baffle plate 102 and a supporting body 103, wherein the backrest 101 is connected with the fixed baffle plate 102, and the fixed baffle plate 102 and the supporting body 103 are connected through a screw.

Preferably, the chair base 1 is a rigid plastic or metal material.

The seat 5 is disposed on the chair base 1, and the seat is turned over on the front and back sides by the combined action of the first turning part 1, the second turning part 2 and the pushing part 4.

The seat 5 includes a first seat surface 505 and a second seat surface 506, in this embodiment, a seat groove 501, a first threaded hole 502, and a second threaded hole 503 are formed in the seat 5, where the first threaded hole 502 and the second threaded hole 503 are symmetrically disposed with respect to a central position of the seat, and a first stop member 507 and a second stop member 508 are disposed at the seat groove 501.

The first turnover part 2 is provided with a first hole body 201 and a second hole body 202, the first hole body 201 is hinged with a first threaded hole 502 of the seat 5, and the second hole body 202 is hinged with the supporting body 103.

In this embodiment, the first turning portion 2 is a connecting rod, and the mounting position of the second hole 202 is located on the symmetry axis of the first screw hole 502 and the second screw hole 503.

The second turnover part 3 is provided with a third hole body 301 and a fourth hole body 302, the third hole body 301 is hinged with a second threaded hole 503 of the seat 5, and the fourth hole body 302 is hinged with the supporting body 103.

In this embodiment, the second turning part 3 is a connecting rod, the installation position of the fourth hole 302 is located on the symmetry axis of the first screw hole 502 and the second screw hole 503, and the installation position of the fourth hole 302 is located right below the installation position of the second hole 202.

The pushing part 4 comprises a connecting hole 401, an executing device 402, a first triggering device 403, an elastic body 404 and a sliding protruding point 405, the connecting hole 401 is hinged with the supporting body 103, a notch matched with the first stopping piece 507 or the second stopping piece 508 is formed in the outer end part of the executing device 402, the matching relationship between the notch and the corresponding stopping piece plays an important role when the seat is turned by about 90 degrees, the sliding protruding point 405 is arranged at the outer end part of the executing device 402 and is in sliding fit in the seat groove 501, and the elastic body 404 is connected with the executing device 402 and the supporting body 103.

In this embodiment, the executing device 402 is a gas spring, the gas spring controls the operation of the executing device through the first starting device, and the elastic body is a coil spring for realizing the reset of the pushing part.

In this embodiment, the execution device, the first overturning portion and the second overturning portion are staggered with each other, that is, the execution device, the first overturning portion and the second overturning portion are not mutually blocked in the moving process of each component, and preferably, the plane where the execution device is located is closest to the outer side of the seat, and the second overturning portion and the first overturning portion are sequentially located inwards.

The basic working principle is as follows:

when the seat needs to be turned over, the user presses down the first trigger device 403, the execution device 402 releases the pneumatic spring mechanism to drive the seat 5 to turn clockwise around the center point, and the sliding convex points 405 always keep sliding in the seat groove 501;

when the seat 5 is turned over by more than 90 degrees, the seat 5 is continuously pressed, the seat 5 is further turned over by the sliding protruding points 405 under the limiting action of the first stop piece 507, and meanwhile, the air spring mechanism of the executing device 402 extrudes the sliding protruding points 405, so that the compressing and resetting of the executing device 402 are realized;

when the seat 5 is turned over by approximately 180 degrees, the actuator 402 slides counterclockwise under the tensile action of the elastic body 404, and the sliding protruding point 405 passes through the first stopper 507 in the opposite direction, and returns to the initial position, i.e., the current second stopper, at this time, the sliding protruding point 405 is located at a position above the side of the second stopper, and the notch is closer to the backrest than the second stopper.

Example 2: compared with embodiment 1, the difference is that a trigger structure for automatically triggering the actuator to perform the inversion by heating is also provided, which is the same as each other.

Referring to fig. 2, 3 and fig. 5-7, a hollow pipe with openings at the upper end and the lower end is arranged at the outer end of the executing device, a metal thermal deformation sheet 406 is arranged in the hollow pipe, the first triggering device is positioned at the opening at the lower end of the hollow pipe and is positioned in the expansion range of the metal thermal deformation sheet after being heated and expanded, namely, the metal thermal deformation sheet can be propped against the first triggering device after being heated and expanded, and the executing device can release the pneumatic spring mechanism after being triggered.

The end cover 407 is rotatably arranged at the opening of the upper end of the hollow pipe fitting, the end cover 407 can be selectively opened or closed, the thermal energy which can be more easily contacted by the metal thermal deformation sheet can be expanded by opening, and the metal thermal deformation sheet can be protected from weather or dust by closing.

Example 3: compared with embodiment 2, the difference is that an adjusting mechanism for adjusting the angle of the seat plate is also provided, which are the same as each other.

Referring to fig. 2, 3, 5 and fig. 7-9, the seat 5 is further provided with a central rotation hole 504, the central rotation hole is located at the central position of the seat, a ratchet wheel is rotatably disposed at the central rotation hole 504, and correspondingly, a pawl member is disposed on the chair base and matched with the central rotation hole, and when the seat is not turned over, the seat angle can be unidirectionally adjusted through the ratchet wheel and pawl structure, so that people can obtain a comfortable angle which meets the user.

In this embodiment, the pawl may further include a manual lever 601 on the basis of the pawl, so that the pawl can be adjusted more conveniently by pushing the manual lever, and meanwhile, when the seat is turned, the ratchet wheel and the pawl are in a separated state in the whole turning process by continuously controlling the manual lever.

The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Chair comprising a chair base (1), characterized in that: the multifunctional seat also comprises a first turnover part (2), a second turnover part (3), a pushing part (4) and a seat plate (5);

the chair base (1) comprises a backrest (101), a fixed baffle plate (102) and a supporting body (103), wherein the backrest (101) is connected with the fixed baffle plate (102), and the fixed baffle plate (102) is connected with the supporting body (103) through a screw;

the seat plate (5) is arranged on the chair base (1), and a seat plate groove (501), a first threaded hole (502) and a second threaded hole (503) are formed in the seat plate (5);

a first hole body (201) and a second hole body (202) are arranged on the first turnover part (2), the first hole body (201) is hinged with a first threaded hole (502) of the seat plate (5), and the second hole body (202) is hinged with the supporting body (103);

a third hole body (301) and a fourth hole body (302) are arranged on the second overturning part (3), the third hole body (301) is hinged with a second threaded hole (503) of the seat plate (5), and the fourth hole body (302) is hinged with the supporting body (103);

the pushing part (4) comprises a connecting hole (401), an executing device (402), a first triggering device (403), an elastic body (404) and a sliding protruding point (405), wherein the connecting hole (401) is hinged with the supporting body (103), the sliding protruding point (405) is arranged in the seat plate groove (501), and the elastic body (404) is connected with the executing device (402) and the supporting body (103).

2. A chair according to claim 1, wherein: the chair base (1) is made of hard plastic or metal materials.

3. A chair according to claim 1, wherein: the first turnover part (2) is a connecting rod, and the installation position of the second hole body (202) is positioned on the symmetry axis of the first threaded hole (502) and the second threaded hole (503).

4. A chair according to claim 1, wherein: the second overturning part (3) is a connecting rod, the installation position of the fourth hole body (302) is positioned on the symmetry axis of the first threaded hole (502) and the second threaded hole (503), and the installation position of the fourth hole body (302) is positioned right below the installation position of the second hole body (202).

5. A chair according to claim 1, wherein: the seat (5) comprises a first seat surface (505) and a second seat surface (506), the first threaded hole (502) and the second threaded hole (503) are arranged on two sides of the central rotating hole (504) and are symmetrically arranged, and a first stop piece (507) and a second stop piece (508) are arranged at the seat groove (501).