CN213524560U

CN213524560U - Chair with turnover backrest

Info

Publication number: CN213524560U
Application number: CN202021576316.2U
Authority: CN
Inventors: 梁志辉
Original assignee: Easeglory Hardware Product Dongguang Co ltd
Current assignee: Easeglory Hardware Product Dongguang Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-06-25
Anticipated expiration: 2030-08-03

Abstract

The utility model discloses a chair with a turnover backrest, which comprises a chair main body and a backrest, wherein the backrest is rotatably arranged on the chair main body, the chair is formed when the backrest is upwards turned, and the stool is formed when the backrest is downwards folded. The chair is characterized in that mounting seats are arranged on two sides of the upper end of the chair main body, rotary joints are arranged on two sides of the lower end of the backrest, and the rotary joints are rotatably mounted on the mounting seats. The two ends of the backrest are respectively provided with a first arc-shaped limiting groove, the rotary joint is provided with a pin, the pin penetrates through the first arc-shaped limiting grooves, and the pin slides in the first arc-shaped limiting grooves to stop the backrest when encountering two stop positions. The pin limits the rotation angle of the backrest, so that the backrest can only be turned over within the angle limited range of the first arc-shaped limiting groove, namely the backrest is a chair when turned over and is a stool when put down.

Description

Chair with turnover backrest

Technical Field

The utility model relates to the technical field of furniture manufacture, in particular to a chair with a reversible backrest.

Background

The chair is one of seats very popular with people and is widely used in families, offices, office halls and bars. The common chair can only be used as a chair and has single use, and most chairs have complex structures and high production cost although a plurality of chairs with one object for multiple purposes are available in the market at present. The common chair needs to occupy more space when needing to be stored due to the backrest, is not convenient to carry about, and brings inconvenience to daily life and traveling.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a chair with a reversible backrest, which has a firm structure and occupies a small space, so as to overcome the disadvantages of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the embodiment provides a chair with a reversible backrest, which comprises a chair main body and a backrest, wherein the backrest is rotatably arranged on the chair main body, the chair is formed when the backrest is turned upwards, and the stool is formed when the backrest is folded downwards; the chair is characterized in that mounting seats are arranged on two sides of the upper end of the chair main body, rotary joints are arranged on two sides of the lower end of the backrest, the rotary joints are rotatably mounted on the mounting seats, first arc-shaped limiting grooves are respectively formed in two ends of the backrest, pins are arranged on the rotary joints, the pins penetrate through the first arc-shaped limiting grooves, and the pins slide in the first arc-shaped limiting grooves to stop the backrest when meeting two stop positions.

The embodiment also provides the chair with the reversible backrest, the chair main body comprises a chair base and a chair frame, and the chair frame is installed on the chair base.

The embodiment also provides the chair with the reversible backrest, which is characterized in that the chair base is provided with a chair leg and a connecting piece, and the first screw penetrates through the chair leg and the connecting piece and then is installed with the chair frame.

The embodiment also provides a chair with a reversible backrest, wherein the rotary joint is provided with a first mounting ring, a second mounting ring, a third mounting ring, a fourth mounting ring, a fifth mounting ring, a sixth mounting ring, a mounting part and a pin, and the mounting part is mounted on the mounting seat after penetrating through the first mounting ring, the second mounting ring, the third mounting ring, the fourth mounting ring, the fifth mounting ring and the sixth mounting ring.

This embodiment still provides a chair that back can overturn, the mount pad be provided with a mounting hole, a circular slot, the screw hole, the installed part on the swivel passes the mounting hole and installs the swivel in the mount pad, the second screw passes the screw hole and installs the swivel in the mount pad, the mounting hole on the mount pad is installed to the one end of pin.

This embodiment still provides a chair that back can overturn, be provided with second arc spacing groove on the fourth collar, the size of this second arc spacing groove is unanimous with first arc spacing groove, insert the mounting hole on the mount pad after first arc spacing groove and second arc spacing groove are passed to the one end of pin.

The embodiment also provides the chair with the reversible backrest, wherein the backrest is structurally attached to the chair frame, and the backrest can be closely attached to the chair frame when turned down.

The embodiment also provides the chair with the reversible backrest, wherein the chair base, the chair frame, the rotary joint and the backrest are made of metal, wood and plastic materials.

The embodiment also provides the chair with the reversible backrest, which further comprises a supporting plate and a seat cushion, wherein the supporting plate is arranged above the chair frame; the cushion is mounted above the support plate.

The embodiment also provides the chair with the reversible backrest, wherein the periphery of the chair frame is provided with fabric, and the fabric wraps the chair frame.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme, a chair that back can overturn, its structural strength is high, and its back can overturn, can regard as chair or stool to use, can laminate mutually with the frame after the upset, therefore its saving space.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is an overall schematic diagram of an embodiment of the present invention.

Fig. 2 is an exploded view of an embodiment of the present invention.

Fig. 3 is a schematic view of the installation of the swivel and the backrest according to the embodiment of the present invention.

Fig. 4 is a schematic view of a mounting base according to an embodiment of the present invention.

Fig. 5 is an exploded view of the rotary joint according to the embodiment of the present invention.

The attached drawings indicate the following:

100. chair body 101 and chair base

102. First screw 103, chair leg

104. Connecting piece 105 and chair frame

200. Backrest 201 and first arc-shaped limiting groove

300. Mounting base 301 and mounting hole

302. Circular groove 303, screw hole

400. Rotating joint 401, first mounting ring

402. Second mounting ring 403, third mounting ring

404. Fourth mounting ring 405, fifth mounting ring

406. Sixth mounting ring 407, mount

408. Pin 409 and second arc-shaped limiting groove

410. Second screw 500, Fabric

501. A support plate 502 and a seat cushion.

Detailed Description

Referring to fig. 1 to 5, a chair with a reversible backrest is shown, which shows a specific structure of a preferred embodiment of the present invention.

The realization principle is as follows: the backrest 200 is mounted on the fourth mounting ring 404 of the swivel 400, with the backrest 200 being integral with the swivel 400. The mounting member 407 passes through the backrest 200 and the rotary joint 400, and then the backrest 200 and the rotary joint 400 are mounted on the mounting base 300, so that the backrest 200 is realized, and the rotary joint 400 can rotate around the mounting member 407. The sixth mounting ring 406 and the mounting base 300 are fixed by two second screws 410, and the rotary joint 400 is mounted on the mounting base 300. The sizes of the first arc-shaped limiting groove 201 and the second arc-shaped limiting groove 409 are the same, the pin 408 penetrates through the first arc-shaped limiting groove 201 and the second arc-shaped limiting groove 409 and is inserted into the mounting hole 301 formed in the mounting base 300, at this time, the pin 408 limits the rotation angle of the backrest 200 and the rotary joint 400, namely, the backrest 200 and the rotary joint 400 can only be turned over within the limited range of the first arc-shaped limiting groove 201 and the second arc-shaped limiting groove 409, namely, the backrest 200 is turned up to be a chair and put down to be a stool.

The embodiment provides a chair with a reversible backrest, which comprises a chair main body 100 and a backrest 200, wherein the backrest 200 is rotatably arranged on the chair main body 100, the chair is formed when the backrest 200 is turned upwards, and the stool is formed when the backrest 200 is folded downwards; the chair is characterized in that mounting seats 300 are arranged on two sides of the upper end of the chair main body 100, rotary joints 400 are arranged on two sides of the lower end of the backrest 200, the rotary joints 400 are rotatably mounted on the mounting seats 300, first arc-shaped limiting grooves 201 are respectively formed in two ends of the backrest 200, pins 408 are arranged on the rotary joints 400, the pins 408 penetrate through the first arc-shaped limiting grooves 201, and the pins 408 slide in the first arc-shaped limiting grooves 201 to stop the backrest 200 when meeting two stop positions, so that the stop backrest can only be stopped in two states of opening and folding.

The present embodiment also provides the chair with a reversible backrest, wherein the chair main body 100 comprises a chair base 101 and a chair frame 105, and the chair frame 105 is mounted on the chair base 101. The chair base 101 is stable and strong.

The embodiment also provides the chair with the reversible backrest, the chair base 101 is provided with chair legs 103 and a connecting piece 104, and the first screw 102 is arranged with the chair frame 105 after penetrating through the chair legs 103 and the connecting piece 104. The chair base 101 is fixed to the chair frame 105 by the connecting member 104, so that the fixing is more secure and the assembled structure is prevented from being deformed.

The present embodiment further provides the chair with a reversible backrest, wherein the swivel 400 is provided with a first mounting ring 401, a second mounting ring 402, a third mounting ring 403, a fourth mounting ring 404, a fifth mounting ring 405, a sixth mounting ring 406, a mounting member 407, and a pin 408. The mounting member 407 is mounted to the mounting base 300 through the first, second, third, fourth, fifth, and sixth mounting rings 401, 402, 403, 404, 405, and 406. The second and third mounting rings 402 and 403 can reduce friction force caused by rotation, thereby preventing damage to the chair.

The embodiment also provides the chair with the reversible backrest, and the mounting seat 300 is provided with a mounting hole 301, a circular groove 302 and a screw hole 303. The mounting member 407 of the rotary joint 400 passes through the mounting hole 301 to mount the rotary joint 400 to the mounting base 300, the second screw 410 passes through the screw hole 303 to mount the rotary joint 400 to the mounting base 300, and one end of the pin 408 is mounted to the mounting hole 301 of the mounting base 300.

The embodiment further provides the chair with the reversible backrest, the fourth mounting ring 404 is provided with a second arc-shaped limiting groove 409, the size of the second arc-shaped limiting groove 409 is consistent with that of the first arc-shaped limiting groove 201, and one end of the pin 408 penetrates through the mounting hole 301 on the mounting seat 300 behind the first arc-shaped limiting groove 201 and the second arc-shaped limiting groove 409. When the rotary joint 400 rotates, the mounting member 407 is used as a circle center, and meanwhile, the pin 408 passes through the second arc-shaped limiting groove 409 and the first arc-shaped limiting groove 201, so that the rotary joint 400 can only rotate within a range limited by the first arc-shaped limiting groove 201 and the second arc-shaped limiting groove 409.

The present embodiment also provides the chair with the reversible backrest, wherein the backrest 200 is constructed to be attached to the chair frame 105. The backrest 200 fits snugly against the chair frame 105 when folded down.

The present embodiment further provides the chair with a reversible backrest, wherein the chair base 101, the chair frame 105, the swivel 400, and the backrest 200 are made of metal, wood, or plastic, but of course, other materials may also be used.

The embodiment also provides the chair with the reversible backrest, which further comprises a supporting plate 501 and a cushion 502, wherein the supporting plate 501 is arranged above the chair frame 105; the seat cushion 502 is mounted above the support plate 501. The support plate 501 enables the seat cushion 502 to be better supported, and in addition, the seat cushion 502 can be replaced according to the requirement by independently arranging the seat cushion 502. The embodiment also provides the chair with the reversible backrest, wherein the periphery of the chair frame 105 is provided with the fabric 500, and the fabric 500 wraps the chair frame 105. The chair frame 105 wrapped with the fabric 500 is more aesthetically pleasing.

To sum up, the utility model discloses a design focus lies in, and its structural strength is high, and its back can overturn, can regard as chair or stool to use, can laminate mutually with the frame after the upset, therefore its saving space.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. A chair with a reversible backrest, characterized in that: the chair comprises a chair main body and a backrest, wherein the backrest is rotatably arranged on the chair main body, the chair is formed when the backrest is turned upwards, and the stool is formed when the backrest is folded downwards; the chair is characterized in that mounting seats are arranged on two sides of the upper end of the chair main body, rotary joints are arranged on two sides of the lower end of the backrest, the rotary joints are rotatably mounted on the mounting seats, first arc-shaped limiting grooves are respectively formed in two ends of the backrest, pins are arranged on the rotary joints, the pins penetrate through the first arc-shaped limiting grooves, and the pins slide in the first arc-shaped limiting grooves to stop the backrest when meeting two stop positions.

2. A chair with a reversible backrest as claimed in claim 1, wherein: the rotary joint is provided with a first mounting ring, a second mounting ring, a third mounting ring, a fourth mounting ring, a fifth mounting ring, a sixth mounting ring, a mounting piece and a pin; the installation part passes through first collar, second collar, third collar, fourth collar, fifth collar, and installs in the mount pad after the sixth collar.

3. A chair with a reversible backrest as claimed in claim 2, wherein: and a second arc-shaped limiting groove is formed in the fourth mounting ring, the size of the second arc-shaped limiting groove is consistent with that of the first arc-shaped limiting groove, and one end of the pin penetrates through the first arc-shaped limiting groove and the second arc-shaped limiting groove and then is inserted into the mounting hole in the mounting seat.

4. A chair with a reversible backrest as claimed in claim 1, wherein: the chair main part includes chair base, chair frame, and the chair frame is installed on the chair base.

5. A chair with a reversible backrest as claimed in claim 4, wherein: the chair base is provided with chair feet and a connecting piece, and the first screw penetrates through the chair feet and the connecting piece and then is installed with the chair frame.

6. A chair with a reversible backrest as claimed in claim 4, wherein: the periphery of the chair frame is provided with fabric, and the fabric wraps the chair frame.

7. A chair with a reversible backrest as claimed in claim 1 or 4, wherein: the structure of the backrest is a structure which can be attached to the chair frame, and the backrest can be tightly attached to the chair frame when turned down.

8. A chair with a reversible backrest as claimed in claim 1, wherein: the mount pad is provided with mounting hole, circular slot, screw hole, the installed part on the swivel passes the mounting hole and installs the swivel in the mount pad, and the second screw passes the screw hole and installs the swivel in the mount pad, and the mounting hole on the mount pad is installed to the one end of pin.

9. A chair with a reversible backrest as claimed in claim 1, wherein: the chair further comprises a supporting plate and a cushion, wherein the supporting plate is arranged above the chair frame; the cushion is mounted above the support plate.

10. A chair with a reversible backrest as claimed in claim 1, wherein: the chair base, the chair frame, the rotary joint and the backrest are made of one of metal, wood and plastic.