CN216220858U

CN216220858U - Iron backrest structure of high-stability dining chair

Info

Publication number: CN216220858U
Application number: CN202122698319.4U
Authority: CN
Inventors: 王海华
Original assignee: Anji Juyuan Furniture Co ltd
Current assignee: Anji Juyuan Furniture Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-04-08
Anticipated expiration: 2031-11-05

Abstract

The utility model discloses a high-stability iron backrest structure of a dining chair, which comprises a chair, a shelf and a backrest, wherein the shelf is fixedly connected to the surface of the chair, a backrest is fixedly installed on the upper surface of the chair, a clamping device is arranged in the middle of the backrest and comprises a placing cavity, a waist pillow is placed in the placing cavity, a sliding groove is formed in the upper top wall of the placing cavity, a threaded rod is rotatably connected to the inner wall of the sliding groove, a handle is fixedly connected to one end, far away from the backrest, of the threaded rod, a threaded pipe is sleeved on the surface of the threaded rod, the inner wall of the threaded pipe is in threaded connection with the threaded rod, a sliding rod is fixedly connected to the surface of the threaded pipe, and the upper end of the sliding rod is in sliding connection with the inner wall of the sliding groove. Through setting up clamping device, when using the waist pillow on the back, with the centre gripping of waist pillow between slide bar and buffer board for the condition that rocks and drop can not appear in the waist pillow, increases the comfort level of back, better protection user's waist.

Description

Iron backrest structure of high-stability dining chair

Technical Field

The utility model belongs to the technical field of dining chairs, and particularly relates to an iron backrest structure of a high-stability dining chair.

Background

The table and chair is a chair specially used for dining, is one of dining room furniture, and is divided into the following parts according to the dining chair material: solid wood chairs, steel wood chairs, curved wood chairs, aluminum alloy chairs, metal chairs, rattan chairs, plastic chairs, glass fiber reinforced plastic chairs, acrylic chairs, plate chairs, miscellaneous wood chairs, baby dining chairs, round chairs and the like.

The waist pillow in the iron back structure of the existing dining chair does not have a clamping device when in use, so that a user sits on the dining chair often, the waist pillow falls or the position of the waist pillow changes, the waist pillow cannot protect the waist of the user, the use of the user is affected, and the problem that the waist pillow cannot be stored when not in use is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-stability iron backrest structure of a dining chair, which aims to solve the problem that the waist pillow falls or the position of the waist pillow is changed to prevent the waist of a user when the waist pillow is placed on the dining chair without a clamping device in the use process of the iron backrest structure of the dining chair in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high stability dining chair iron back structure, includes chair, shelf, leans against, the fixed surface of chair is connected with the shelf, the last fixed surface of chair installs and leans against, the middle part that leans against is equipped with clamping device, clamping device is including placing the chamber, it is located the surface that leans against and sets up to place the chamber, place the inside in chamber and placed the waist pillow, place the last top wall in chamber and seted up the spout, the inner wall of spout rotates and is connected with the threaded rod, the threaded rod is kept away from the one end fixedly connected with handle that leans against, the surface cover of threaded rod is equipped with the screwed pipe, the inner wall and the threaded rod threaded connection of screwed pipe, the fixed surface of screwed pipe is connected with the slide bar, the upper end of slide bar and the inner wall sliding connection of spout.

Through adopting above-mentioned technical scheme, the advantage lies in: the sliding rod is driven to move in the sliding groove and extrude the waist pillow by rotating the handle, so that the waist pillow is stable in the placing cavity, and the falling-off condition is avoided.

Preferably, the inner wall fixedly connected with first spring of placing the chamber, the quantity of first spring is two and be the symmetric distribution, two the other end fixed mounting of first spring has the buffer board, one side and the waist pillow swing joint of first spring are kept away from to the buffer board.

Through adopting above-mentioned technical scheme, the advantage lies in: when the sliding rod extrudes the waist pillow, the waist pillow is buffered, and the condition that the waist pillow is extruded and deformed by the sliding rod can not occur.

Preferably, one side of the sliding rod, which is far away from the handle, is provided with a groove, and one side of the sliding rod, which is provided with the sliding groove, is movably connected with the waist pillow.

Through adopting above-mentioned technical scheme, the advantage lies in: the groove can increase the friction force between the sliding rod and the waist pillow, and prevent the waist pillow from sliding up and down in the placing cavity.

Preferably, the waist pillow is positioned between the sliding rod and the buffer plate, and the size of the waist pillow is matched with that of the sliding plate and the buffer plate.

Through adopting above-mentioned technical scheme, the advantage lies in: the waist pillow can be better clamped in the placing cavity by the slide rod and the buffer plate.

Preferably, the lower surface of chair is provided with storage device, storage device includes the second spring, the quantity of second spring is six and be two bisymmetry distributions, six the other end fixed mounting of second spring has the shelf, the size and the waist pillow looks adaptation of shelf.

Through adopting above-mentioned technical scheme, the advantage lies in: the second spring contracts to drive the shelf to move, so that the waist pillow can be supported on the lower surface of the chair, and the waist pillow can be better stored on the shelf.

Preferably, the lower fixed surface of chair is connected with the sleeve, telescopic quantity is six and is the mirror image and distributes, the equal sliding connection of telescopic inner wall has the locating lever, telescopic one end and the fixed surface of shelf are connected are kept away from to the locating lever.

Through adopting above-mentioned technical scheme, the advantage lies in: the locating lever slides in telescopic inner wall and can make the shelf more stable, can not take place the condition of rocking when the chair removes.

Preferably, one side of the shelf, which is far away from the second spring, is fixedly connected with a pull ring, and the pull ring is arranged in a C shape.

Through adopting above-mentioned technical scheme, the advantage lies in: when the waist pillow is stored in the use, the shelf can be pulled more conveniently by means of the pull ring.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the arranged placing cavity, the waist pillow is placed in the placing cavity, the handle is immediately held and rotated, the handle drives the threaded pipe and the sliding rod to move in the direction far away from the handle in the sliding groove through the threaded rod, the groove is contacted with the waist pillow when the sliding rod is contacted with the waist pillow, so that the friction force between the sliding rod and the waist pillow is increased, the sliding rod drives the waist pillow to move, the waist pillow is contacted with the buffer plate, the buffer plate extrudes the first spring, the first spring is stressed and deformed to generate elastic force, so as to limit the waist pillow, when the waist pillow needs to be taken down, the handle is held to rotate in the opposite direction, the threaded rod drives the threaded pipe and the sliding rod to reset, the waist pillow loses the acting force of the sliding rod after the sliding rod resets, the first spring restores the elastic force to drive the buffer plate, the waist pillow can be taken down, through the arrangement of the clamping device, when the waist pillow on the backrest is used, the waist pillow is clamped between the sliding rod and the buffer plate, the waist pillow can not shake and fall off, the comfort level of the backrest is increased, and the waist of a user is better protected.

2. Through the pull ring that sets up, waist pillow when not using on the back structure, to the direction pulling pull ring of keeping away from the chair, the pull ring passes through the tensile second spring of shelf, the second spring takes place deformation, when shelf motion to suitable position, place waist pillow between shelf and chair, loosen the pull ring immediately, the second spring loses the constraint and drives the shelf and reset, fix waist pillow when the shelf resets, accomplish accomodating to waist pillow, when needs use waist pillow, again to the direction pulling pull ring of keeping away from the chair, it can to take off the waist pillow on the baffle, through setting up storage device, when not using in the back structure, can use the shelf to fix waist pillow, thereby reach the effect of accomodating.

Drawings

FIG. 1 is a schematic view of a chair according to the present invention;

FIG. 2 is a schematic view of a clamping device according to the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 at A in accordance with the present invention;

fig. 4 is a schematic structural view of the storage device of the present invention.

In the figure: 1. a chair; 2. a shelf; 3. backing up; 4. waist pillow; 5. a clamping device; 51. a placement chamber; 52. a chute; 53. a threaded rod; 54. a threaded pipe; 55. a slide bar; 56. a first spring; 57. a buffer plate 58, a groove; 59. a handle; 6. a storage device; 61. a second spring; 62. a shelf; 63. a sleeve; 64. positioning a rod; 65. and (4) a pull ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-4, the present invention provides a technical solution: a high-stability iron backrest structure of a dining chair comprises a chair 1, a shelf 2 and a backrest 3, wherein the shelf 2 is fixedly connected to the surface of the chair 1, a backrest 3 is fixedly installed on the upper surface of the chair 1, a clamping device 5 is arranged in the middle of the backrest 3, the clamping device 5 comprises a placing cavity 51, the placing cavity 51 is formed in the surface of the backrest 3, a waist pillow 4 is placed in the placing cavity 51, a sliding groove 52 is formed in the upper top wall of the placing cavity 51, the inner wall of the sliding groove 52 is rotatably connected with a threaded rod 53, one end, far away from the backrest 3, of the threaded rod 53 is fixedly connected with a handle 59, a threaded pipe 54 is sleeved on the surface of the threaded rod 53, the inner wall of the threaded pipe 54 is in threaded connection with the threaded rod 53, a sliding rod 55 is fixedly connected to the surface of the threaded pipe 54, the upper end of the sliding rod 55 is slidably connected with the inner wall of the sliding groove 52, a first spring 56 is fixedly connected to the inner wall of the placing cavity 51, the first springs 56 are two and symmetrically distributed, the other ends of the two first springs 56 are fixedly provided with a buffer plate 57, and one side of the buffer plate 57 far away from the first springs 56 is movably connected with the waist pillow 4.

In this embodiment, the lumbar pillow 4 can be better placed on the backrest 3 by forming the placing cavity 51 on the examination preparation.

Example two:

as shown in fig. 1-4, on the basis of the first embodiment, the present invention provides a technical solution: the side of the sliding rod 55 far away from the handle 59 is provided with a groove 58, the side of the sliding rod 55 provided with the sliding groove 52 is movably connected with the waist pillow 4, the waist pillow 4 is positioned between the sliding rod 55 and the buffer plate 57, and the size of the waist pillow 4 is matched with that of the sliding plate and the buffer plate 57.

In this embodiment, the groove 58 can increase the friction between the sliding rod 55 and the lumbar pillow 4, so as to prevent the lumbar pillow 4 from sliding up and down in the placing cavity 51.

Example three:

as shown in fig. 1 to 4, on the basis of the first embodiment and the second embodiment, the present invention provides a technical solution: chair 1's lower surface is provided with storage device 6, storage device 6 includes second spring 61, the quantity of second spring 61 is six and be two bisymmetry distributions, six second spring 61's other end fixed mounting has shelf 62, the size and the waist pillow 4 looks adaptation of shelf 62, chair 1's lower fixed surface is connected with sleeve 63, the quantity of sleeve 63 is six and be the mirror image distribution, the equal sliding connection of inner wall of sleeve 63 has locating lever 64, the locating lever 64 is kept away from the one end of sleeve 63 and is connected with shelf 62's fixed surface.

In this embodiment, the positioning rod 64 slides in the inner wall of the sleeve 63 to stabilize the shelf 62, and the chair 1 does not shake during movement.

Example four:

as shown in fig. 1 to 4, on the basis of the first embodiment, the second embodiment and the third embodiment, the present invention provides a technical solution: a pull ring 65 is fixedly connected to one side of the shelf 62 far away from the second spring 61, and the pull ring 65 is arranged in a C shape.

In this embodiment, the shelf 62 can be pulled more easily by the pull ring 65 when the waist pillow 4 is used.

The working principle and the using process of the utility model are as follows: the waist pillow 4 is placed in the placing cavity 51, the handle 59 is held and rotated immediately, the handle 59 drives the threaded pipe 54 and the sliding rod 55 to move in the direction far away from the handle 59 in the sliding groove 52 through the threaded rod 53, the groove 58 is in contact with the waist pillow 4 when the sliding rod 55 is in contact with the waist pillow 4, the sliding rod 55 drives the waist pillow 4 to move, the waist pillow 4 is in contact with the buffer plate 57, the buffer plate 57 extrudes the first spring 56, the first spring 56 is stressed and deformed to generate elastic force, so that the waist pillow 4 is limited, through the arrangement of the clamping device 5, when the waist pillow 4 on the backrest is used, the waist pillow 4 is clamped between the sliding rod 55 and the buffer plate 57, the waist pillow 4 cannot shake or fall off, and the comfort level of the backrest is increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high stability dining chair iron back structure, includes chair (1), shelf (2), backrest (3), the fixed surface of chair (1) is connected with shelf (2), the last fixed surface of chair (1) installs backrest (3), its characterized in that: the middle part of backing to (3) is equipped with clamping device (5), clamping device (5) are including placing chamber (51), it sets up to place the surface that chamber (51) are located backing to (3), the inside of placing chamber (51) has placed waist pillow (4), the last top wall of placing chamber (51) has seted up spout (52), the inner wall of spout (52) rotates and is connected with threaded rod (53), one end fixedly connected with handle (59) of backing to (3) are kept away from in threaded rod (53), the surface cover of threaded rod (53) is equipped with screwed pipe (54), the inner wall and the threaded rod (53) threaded connection of screwed pipe (54), the fixed surface of screwed pipe (54) is connected with slide bar (55), the upper end of slide bar (55) and the inner wall sliding connection of spout (52).

2. A high stability dining chair iron back structure as claimed in claim 1, wherein: place the first spring of inner wall fixedly connected with (56) of chamber (51), the quantity of first spring (56) is two and be the symmetric distribution, two the other end fixed mounting of first spring (56) has buffer board (57), one side and waist pillow (4) swing joint of first spring (56) are kept away from in buffer board (57).

3. A high stability dining chair iron back structure as claimed in claim 1, wherein: one side of the sliding rod (55) far away from the handle (59) is provided with a groove (58), and one side of the sliding rod (55) provided with the sliding groove (52) is movably connected with the waist pillow (4).

4. A high stability dining chair iron back structure as claimed in claim 1, wherein: the waist pillow (4) is positioned between the sliding rod (55) and the buffer plate (57), and the size of the waist pillow (4) is matched with the sliding plate and the buffer plate (57).

5. A high stability dining chair iron back structure as claimed in claim 1, wherein: the lower surface of chair (1) is provided with storage device (6), storage device (6) include second spring (61), the quantity of second spring (61) is six and be two bisymmetry distributions, six the other end fixed mounting of second spring (61) has shelf (62), the size and the waist pillow (4) looks adaptation of shelf (62).

6. A high stability dining chair iron back structure as claimed in claim 1, wherein: the lower surface fixedly connected with sleeve (63) of chair (1), the quantity of sleeve (63) is six and is the mirror image and distributes, the equal sliding connection of inner wall of sleeve (63) has locating lever (64), the one end that sleeve (63) were kept away from in locating lever (64) is connected with the fixed surface of shelf (62).

7. The iron back structure of high stability dining chair according to claim 5, wherein: one side of the shelf (62) far away from the second spring (61) is fixedly connected with a pull ring (65), and the pull ring (65) is arranged in a C shape.