CN215958871U

CN215958871U - Chair for students

Info

Publication number: CN215958871U
Application number: CN202121255653.6U
Authority: CN
Inventors: 李林林; 徐朝霞; 张琼
Original assignee: Chengdu Polytechnic
Current assignee: Chengdu Polytechnic
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-03-08
Anticipated expiration: 2031-06-04

Abstract

The utility model relates to the technical field of stationery, in particular to a chair for students, which comprises a chair, wherein a table plate is hinged on a handle of the chair, a cavity is arranged in the table plate, a first extending plate and a second extending plate are sleeved in the cavity, the first extending plate and the second extending plate slide outwards relative to the table plate, and the sliding directions of the first extending plate and the second extending plate are opposite; the area of the spliced first extending plate and the second extending plate is equivalent to that of the table plate. The purpose is that the two extending plates which slide relative to the table plate are arranged in the table plate, when the table plate needs to be expanded, the extending plates arranged in the table plate can be directly pulled out in a pulling-out mode, and therefore the using area of the table plate is increased.

Description

Chair for students

Technical Field

The utility model belongs to the technical field of stationery, and particularly relates to a chair for students.

Background

The existing chair for students is usually provided with a small table plate which can be lifted up and put down, and the function of the table can be realized by putting down the small table plate after the students sit on the chair for use during examinations or class. However, the existing small desk board connected to the chair has a single structure, the small desk board has limited area and low expansibility, so that the small desk board is not very suitable for students to use, and the use requirements can not be met when a large area is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the using area of a table plate is small in the existing student chair with the table plate, the utility model provides the student chair.

The technical scheme adopted by the utility model is as follows: a desk plate is hinged to a handle of the chair, a cavity is formed in the desk plate, a first extending plate and a second extending plate are sleeved in the cavity, the first extending plate and the second extending plate slide outwards relative to the desk plate, and the sliding directions of the first extending plate and the second extending plate are opposite; the area of the spliced first extending plate and the second extending plate is equivalent to that of the table plate.

Preferably, the first extension plate is in a [ -shape and comprises an upper side plate and a lower side plate, the upper side plate is shorter than the lower side plate, and the lower side plate is in contact with the bottom surface of the cavity; a spring is arranged between the upper side plate and the lower side plate and is close to the end part of the upper side plate; the end part of the upper side plate is provided with a step surface, and the distance from the upper end surface of the step surface to the upper end surface of the upper side plate is equivalent to the wall thickness of the table plate.

Preferably, the second stretching plate is sleeved in the first stretching plate, and a limiting plate is arranged on the second stretching plate close to the middle.

Preferably, a cylinder column is arranged on the seat, and the seat is adjusted up and down through the cylinder column.

Preferably, a base is arranged below the cylinder column, a plurality of support legs are arranged on the base, and a gasket is arranged at one end, which is in contact with the ground, of each support leg.

The utility model has the advantages that: the two extending plates which slide relative to the table plate are arranged in the table plate, so that when the table plate needs to be expanded, the extending plates arranged in the extending plates can be pulled out directly in a pulling-out mode, and the use area of the table plate is increased; after the use is accomplished, can directly will stretch out the board and push the table and accomodate can, this student is with simple structure of chair upper table, easily popularization.

Drawings

Fig. 1 is a schematic structural view of the utility model;

FIG. 2 is a side view;

fig. 3 is a schematic structural diagram of the table board.

In the figure: 1-seat, 2-chair back, 3-support frame, 4-handle, 5-rotating shaft, 6-table board, 7-first extending board, 8-supporting block, 9-cylinder column, 10-base, 11-support leg, 12-gasket, 13-upper side board, 14-lower side board, 15-spring, 16-cavity, 17-second extending board and 18-step surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 1-3, a student uses chair, including seat 1, set up the back of the chair 2 on the seat 1, back of the chair 2 presents for human engineering structure, and the both sides of seat 1 set up support frame 3, and support frame 3 is made by steel material, support frame 3 respectively with seat 1 side, back of the

chair

2, 4 fixed connection of handle, articulated table 6 on the handle 4 of seat 1 can be with table 6 outside roll-out when not using, directly during the use to the direction of back of the chair 2 rotate can, table 6 is articulated through rotation axis 5 with handle 4, and rotation axis 5 can carry out certain support to table 6 for the student guarantees table 6's user state when using, and table 6 can adopt wooden also can adopt the lighter alloy of quality.

The desk plate 6 is hollow to form a cavity 16, the cavity 16 is sleeved with a first extending plate 7 and a second extending plate 17, the first extending plate 7 and the second extending plate 17 slide relative to the desk plate 6, the extending directions of the first extending plate 7 and the second extending plate 17 are opposite, and it can be understood that limiting plates are arranged on the first extending plate 7 and the second extending plate 17, so that the first extending plate 7 and the second extending plate 17 cannot directly fall off when sliding outwards; first area after stretching out board 7 and the concatenation of second stretching out board 17 is equivalent with table 6's area, and first stretching out board 7 and second stretch out board 17 contact combination when together, can arrange in table 6's cavity 16 completely, does not influence table 6's use, in this embodiment, after the user rotates table 6 to back of the chair 2 direction, first stretching out board 7 and second stretch out the direction that stretches out board 17 and be the orientation back of the chair 2 and the orientation of keeping away from back of the chair 2 respectively.

The first extending plate 7 is in a [ -shape, the first extending plate 7 can be made of elastic materials, so that the upper side plate 13 can slightly move up and down relative to the lower side plate 14 and comprises the upper side plate 13 and the lower side plate 14, the upper side plate 13 is shorter than the lower side plate 14, and the lower side plate 14 is in contact with the bottom surface of the inner wall of the table board 6; a spring 15 is arranged between the upper side plate 13 and the lower side plate 14, and the spring 15 is close to the end part of the upper side plate 13; the end part of the upper side plate 13 is provided with a step surface 18, and the distance from the upper end surface of the step surface 18 to the upper end surface of the upper side plate 13 is equivalent to the wall thickness of the desk plate 6. When the first extension plate 7 needs to be used, the first extension plate 7 only needs to be pulled out, after the first extension plate 7 is pulled to the step surface 18, because the upper surface of the step surface 18 is lower than the upper surface of the upper side plate 13, the upper side plate 13 moves upwards under the action of the elastic force of the spring 15, so that the upper surface of the step surface 18 abuts against the inner wall of the upper side of the cavity 16, and because the elastic force of the spring 15, the upper side plate 13 and the lower side plate 14 are always in a state of opening towards two sides, the first extension plate 7 is kept stable through the force of opening towards two sides, and the lower side plate 14 is longer than the upper side plate 13, so that the lower side plate 14 can also provide partial supporting force to keep the first extension plate 7 stable; after using the completion, the user only needs the manual edge of pressing upper plate 13 for spring 15 compresses, and after upper surface when upper plate 13 was less than table 6, it can to the inboard promote first board 7 that stretches out and make first board 7 that stretches out slide to cavity 16.

The edge that the board 17 was stretched out to the second can be directly and the first edge that stretches out board 7 contacts splices, in this embodiment, also can stretch out the board 17 cover with the second and establish in the first board 7 that stretches out, the second stretches out the position that is close to the centre on the board 17 and sets up the limiting plate, and the second stretches out the position and the edge in the centre of board 17 and sets up the limiting plate to when guaranteeing the first board 7 that stretches out of pulling, the second stretches out board 17 and can not slide along with the first board 7 that stretches out, when the board 17 that stretches out of slip second outwards, also can not direct roll-off cavity 16.

The seat is characterized in that a supporting block 8 is arranged below the seat 1, a cylinder column 9 is arranged at the lower end of the supporting block 8, and the seat 1 is adjusted up and down through the cylinder column 9. The cylinder column 9 is a cylinder structure with a small upper part and a large lower part, the cylinder column 9 can automatically adjust the length of the cylinder column according to the weight of a user, so that the purpose that people with different weights can comfortably sit is achieved, and the upper end of the cylinder column 9 is fixedly connected with the lower end of the supporting block 8.

The base 10 is arranged below the cylinder column 9, the base 10 is of a circular structure, a plurality of support legs 11 are arranged on the base 10, the support legs 11 can reduce the overall weight of the whole device, the bearing strength is not changed greatly, a gasket 12 is arranged at one end, in contact with the ground, of each support leg 11, the gasket 12 is of a rectangular piece, the gasket 12 can ensure that the contact area of the device to the ground is increased when the device is used, and the stability of the device is improved.

The specific working mode is as follows: when the desk is used, a user can sit on the seat 1 after turning the desk plate 6 outwards, and then can place paper and the like on the desk plate 6 for writing by rotating the desk plate 6 towards the own direction; when the area of the table board 6 needs to be expanded, the first extending board 7 only needs to be pulled out outwards manually until the first extending board is pulled to the step surface 18, so that the step surface 18 is clamped on the upper wall of the inner side of the cavity 16, and the upper surface of the upper side board 13 is flush with the surface of the table board 6 at the moment, and the use space can be expanded; if want further extension usage space, only need manual pull out the second and stretch out board 17, the pulling back that targets in place, limiting plate card on the second stretches out board 17 can further extend the usage space in the edge of cavity 16.

After the use is accomplished, manual pressure goes up curb plate 13, make the curb plate 13 after the downward slight motion, can impel the curb plate 13 to the direction of cavity 16, impel the second simultaneously and stretch out board 17, when feeling the second and stretch out board 17 and the edge of curb plate 14 down and have the conflict, manual slightly lifts up the second and stretches out board 17, make the second stretch out board 17 slightly to the upside removal in cavity 16, reserve the space for the motion of curb plate 14 down, continue to promote simultaneously that first stretch out board 7 and second stretch out board 17, make the second stretch out the inside that board 17 moved to first stretch out board 7, it can to push to cavity 16 completely to stretch out the board until two.

The above-mentioned embodiments are preferred embodiments, it should be noted that the above-mentioned preferred embodiments should not be considered as limitations to the utility model, and the scope of protection of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and these modifications and adaptations should be considered within the scope of the utility model.

Claims

1. A chair for students, comprising a seat (1), characterized in that: a table plate (6) is hinged to a handle (4) of the seat (1), a cavity (16) is formed in the table plate (6), a first extending plate (7) and a second extending plate (17) are sleeved in the cavity (16), the first extending plate (7) and the second extending plate (17) slide outwards relative to the table plate (6), and the sliding directions of the first extending plate (7) and the second extending plate (17) are opposite; the area of the spliced first extending plate (7) and the second extending plate (17) is equivalent to that of the table plate (6).

2. The chair for students according to claim 1, wherein: the first extension plate (7) is in a [ -shape and comprises an upper side plate (13) and a lower side plate (14), the upper side plate (13) is shorter than the lower side plate (14), and the lower side plate (14) is in contact with the bottom surface of the cavity (16); a spring (15) is arranged between the upper side plate (13) and the lower side plate (14), and the spring (15) is close to the end part of the upper side plate (13); the end part of the upper side plate (13) is provided with a step surface (18), and the distance from the upper end surface of the step surface (18) to the upper end surface of the upper side plate (13) is equivalent to the wall thickness of the table plate (6).

3. The chair for students according to claim 2, wherein: the second stretches out board (17) and establishes in first stretching out board (7), the second stretches out the board (17) and goes up the position that is close to the centre and set up the limiting plate.

4. A student chair according to any one of claims 1 to 3 wherein: the seat is characterized in that a cylinder column (9) is arranged on the seat (1), and the seat (1) is adjusted up and down through the cylinder column (9).

5. The chair for students according to claim 4, wherein: a base (10) is arranged below the cylinder column (9), a plurality of support legs (11) are arranged on the base (10), and a gasket (12) is arranged at one end, which is in contact with the ground, of each support leg (11).