Adjustable lunch desk and chair

Abstract

This utility model discloses an adjustable lunch break desk and chair, belonging to the field of desk and chair technology. It includes a desk body comprising a desktop panel with a drawer box fixedly installed in the center of the bottom; and a chair body comprising a seat cushion. One side of the seat cushion is rotatably connected to a backrest panel via a backrest adjustment component, and two sets of chair legs are fixedly installed on both sides of the bottom of the seat cushion. This utility model, through the backrest adjustment component, has a simple structure, is convenient and practical, and allows the backrest panel to be folded and fitted to the seat cushion panel, greatly reducing the volume of the chair body. Furthermore, by using a snap-fit ​​component, the folded chair body can be installed at the bottom of the desk body, further reducing the size of the desk and chair. Connecting the two facilitates transportation and storage, and also allows for quick space clearing during small activities in the classroom.

Description

Technical Field

[0001] This utility model relates to the field of desks and chairs technology, specifically an adjustable desk and chair for lunch break. Background Technology

[0002] School desks and chairs are basic equipment used by students in schools, typically consisting of a table and a chair. Tables generally have a flat surface for placing books, stationery, and other school supplies, with space underneath for storing bags and other items. Chairs are ergonomically designed to allow students to maintain a comfortable sitting posture, facilitating concentration. Lunch break desks and chairs are an improvement on standard school desks and chairs, catering to students' needs during lunch breaks. Through clever designs such as folding, modularity, or adjustability, these desks and chairs allow students to lie down and rest more comfortably during lunch breaks, providing a more comfortable environment and helping them maintain a good mental state for continued learning in the afternoon.

[0003] A search revealed that Chinese Patent Publication No. CN221902852U discloses a lunch break desk and chair, including a desk and chair base. Two sliding rods are connected to the inner side of the base, and vertical sliding plates are slidably connected to the outer surfaces of the two sliding rods. A U-shaped locking plate is slidably engaged on the upper end of the vertical sliding plates, and a seat is fixedly connected to the upper end of the U-shaped locking plate. This invention allows adjustment of the front-to-back distance of the desk and chair by moving the two vertical sliding plates. The up-and-down movement of the U-shaped locking plate allows for flexible height adjustment of the seat. Subsequently, the elasticity of the connecting spring causes two rotating plates to rotate the backrest downwards, facilitating students to lie down and rest in the seat. The height of the desk can be flexibly adjusted by moving the lifting frame up and down. The placement board is then rotated to a horizontal position, supporting the student's legs while lying down, thus improving the comfort of the lunch break.

[0004] However, this device also has the following drawbacks:

[0005] Although the device can adjust the distance between tables and chairs, it is bulky, making it inconvenient to move and transport the tables and chairs, as well as to store them. Furthermore, it is difficult to quickly free up enough space when small activities need to be carried out in the classroom, and the device does not solve this problem. Utility Model Content

[0006] The purpose of this utility model is to provide an adjustable lunch break desk and chair. By setting a backrest adjustment component, the backrest can be folded and fitted to the seat cushion, greatly reducing the volume of the main body of the desk and chair. By setting a snap-fit ​​component, the folded main body of the desk and chair can be installed at the bottom of the desk and chair, greatly reducing the volume of the desk and chair. Furthermore, connecting the two facilitates transportation and storage, and also makes it easy to quickly free up space when carrying out small activities in the classroom, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An adjustable lunch break desk and chair includes a desk body, the desk body including a desktop, and a drawer box fixedly installed in the middle of the bottom of the desktop;

[0009] It also includes a chair body, which includes a seat cushion. One side of the seat cushion is rotatably connected to the backrest via a backrest adjustment assembly. Two sets of chair legs are fixedly installed on both sides of the bottom of the seat cushion, and two sets of seat base plates are fixedly installed on the bottom of the chair legs.

[0010] The backrest adjustment assembly includes a fixed arm, which is fixedly connected to the middle of one side of the seat cushion. Two sets of rotating shafts are fixedly installed on both sides of the fixed arm. The rotating shafts are rotatably connected to a rotating sleeve. The rotating sleeve is fixedly connected to one end of the adjustment arm, and the other end of the adjustment arm is fixedly connected to the backrest.

[0011] It also includes a snap-fit ​​assembly, which includes a snap-fit ​​groove that slides with the seat base and is fixedly installed at the bottom of the drawer box.

[0012] Preferably, a plurality of positioning holes are provided symmetrically on one side of the rotating sleeve, and the positioning holes are integrally formed with the rotating sleeve.

[0013] Preferably, limit plates are fixedly installed at both ends of the rotating shaft, and a sliding inner cavity is provided on the top of the limit plate. A positioning pin is slidably installed in the sliding inner cavity, and the positioning pin is slidably engaged with the positioning hole.

[0014] Preferably, one side of the positioning pin is fixedly connected to one end of the pull rod, the pull rod slides in cooperation with the limiting plate and the sliding inner cavity, and a pull ring is fixedly installed at the other end of the pull rod.

[0015] Preferably, a spring is slidably installed in the sliding cavity, the spring is slidably sleeved on the surface of the pull rod, one end of the spring abuts against the positioning pin, and the other end of the spring abuts against the inner wall of the sliding cavity.

[0016] Preferably, a sliding groove is provided on one side of the bottom of the snap-fit ​​groove, and the sliding groove is movablely engaged with the chair leg.

[0017] Preferably, a limiting screw is threaded on the other side of the bottom of the snap-fit ​​groove, and a limiting hole is formed on the surface of the seat base plate, with the limiting screw slidingly engaging with the limiting hole.

[0018] Preferably, two sets of table legs are fixedly installed on both sides of the bottom of the desktop, and a desk base is fixedly installed on the bottom of the table legs.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This utility model features a backrest adjustment component, which is simple in structure, convenient and practical. The backrest can be folded and fitted to the seat cushion, greatly reducing the size of the chair body. By setting up a snap-fit ​​component, the folded chair body can be installed at the bottom of the desk body, greatly reducing the size of the desk and chair. Connecting the two facilitates transportation and storage, and also makes it easy to quickly free up space when carrying out small activities in the classroom. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 A schematic diagram of the folded structure of the main body of the school chair;

[0023] Figure 3 Schematic diagram of the explosion separation structure of the backrest adjustment component;

[0024] Figure 4 This is a schematic diagram of the locating pin structure.

[0025] In the diagram: 1. Desktop; 2. Drawer box; 3. Seat cushion; 4. Backrest adjustment assembly; 401. Fixed arm; 402. Rotating shaft; 403. Rotating sleeve; 404. Adjusting arm; 405. Positioning hole; 406. Limiting plate; 407. Sliding inner cavity; 408. Positioning pin; 409. Pull rod; 410. Pull ring; 411. Spring; 5. Backrest panel; 6. Chair leg; 7. Seat base; 8. Snap-fit ​​groove; 9. Slide groove; 10. Limiting screw; 11. Limiting hole; 12. Table leg; 13. Desk base. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-4 This utility model provides a technical solution:

[0028] An adjustable lunch break desk and chair includes a desk body, which includes a desktop panel 1. A drawer box 2 is fixedly installed in the middle of the bottom of the desktop panel 1. Two sets of table legs 12 are fixedly installed on both sides of the bottom of the desktop panel 1. A desk base plate 13 is fixedly installed at the bottom of the table legs 12. The desk body also includes a chair body, which includes a seat cushion 3. One side of the seat cushion 3 is rotatably connected to a backrest panel 5 through a backrest adjustment component 4. Two sets of chair legs 6 are fixedly installed on both sides of the bottom of the seat cushion 3. Two sets of seat base plates 7 are fixedly installed at the bottom of the chair legs 6.

[0029] By setting up the main body of the desk, a stable and flat surface is provided for students to place books, stationery, computers and other learning supplies, which facilitates various learning activities such as reading, writing, drawing and operating experimental equipment. The backrest adjustment component 4 allows students to adjust the angle of the backrest board 5 according to their own needs, whether it is to maintain an upright sitting posture while studying or to adjust to a comfortable reclining angle during lunch break.

[0030] The backrest adjustment assembly 4 includes a fixed arm 401, which is fixedly connected to the middle of one side of the seat cushion 3. Two sets of rotating shafts 402 are fixedly installed on both sides of the fixed arm 401. The rotating shafts 402 are rotatably connected to the rotating sleeve 403. The rotating sleeve 403 is fixedly connected to one end of the adjustment arm 404, and the other end of the adjustment arm 404 is fixedly connected to the backrest 5. Multiple sets of positioning holes 405 are symmetrically arranged on one side of the rotating sleeve 403. The positioning holes 405 are integrally formed with the rotating sleeve 403. Limiting plates 406 are fixedly installed at both ends of the rotating shafts 402. The top of the limiting plates 406 has an opening. There is a sliding inner cavity 407, and a positioning pin 408 is slidably installed in the sliding inner cavity 407. The positioning pin 408 is slidably engaged with the positioning hole 405. One side of the positioning pin 408 is fixedly connected to one end of the pull rod 409. The pull rod 409 is slidably engaged with the limiting plate 406 and the sliding inner cavity 407. A pull ring 410 is fixedly installed at the other end of the pull rod 409. A spring 411 is slidably installed in the sliding inner cavity 407. The spring 411 is slidably sleeved on the surface of the pull rod 409. One end of the spring 411 abuts against the positioning pin 408, and the other end of the spring 411 abuts against the inner wall of the sliding inner cavity 407.

[0031] The rotating sleeve 403 is rotatably connected to the rotating shaft 402, and the adjusting arm 404 connects the rotating sleeve 403 and the backrest 5, allowing the backrest 5 to rotate around the rotating shaft 402, thus enabling flexible adjustment of the backrest 5's angle. The rotating sleeve 403 has multiple sets of positioning holes 405, which, in conjunction with the sliding engagement of the positioning pin 408 and the positioning holes 405, accurately fix the backrest 5 at different angles. Students can select the appropriate positioning hole 405 to lock the backrest angle according to their habits and actual needs, ensuring the backrest is securely in use. The backrest does not sway or change angle during the process, providing stable support. The positioning pin 408 is connected to the pull ring 410 via the pull rod 409. Students only need to pull the pull ring 410 to make the positioning pin 408 slide in the sliding inner cavity 407, so that it separates from the positioning hole 405. This allows for easy adjustment of the backrest angle. After adjustment, the pull ring 410 is released, and under the action of the spring 411, the positioning pin 408 will automatically insert into the corresponding positioning hole 405 to lock the angle. The whole operation is simple and convenient, without complicated operation steps.

[0032] It also includes a snap-fit ​​assembly, which includes a snap-fit ​​groove 8 that slides with the seat base plate 7. The snap-fit ​​groove 8 is fixedly installed on the bottom of the drawer box 2. A sliding groove 9 is provided on one side of the bottom of the snap-fit ​​groove 8, which moves with the chair leg 6. A limit screw 10 is threaded on the other side of the bottom of the snap-fit ​​groove 8. A limit hole 11 is provided on the surface of the seat base plate 7, and the limit screw 10 slides with the limit hole 11.

[0033] By setting up a snap-fit ​​component, the main body of the chair can be folded and matched with the snap-fit ​​slot 8 under the main body of the desk, and stored under the main body of the desk, which greatly reduces the overall space occupied by the desk and chair. In the case of limited classroom space, this is conducive to the flexible use of classroom space, making it convenient to adjust the classroom layout or carry out various activities. At the same time, it also facilitates the transportation and storage of desks and chairs, reducing handling costs and storage space requirements.

[0034] In practical use, move the device to the designated position. When the angle of the backrest 5 needs to be adjusted, pull the pull ring 410 on the pull rod 409. The pull ring 410 drives the pull rod 409 to move, and the pull rod 409 then drives the positioning pin 408 to slide in the sliding inner cavity 407, so that the positioning pin 408 separates from the positioning hole 405 on the rotating sleeve 403. Rotate the backrest 5 as needed, and the adjusting arm 404 drives the rotating sleeve 403 to rotate around the rotating shaft 402 to adjust the backrest 5 to a suitable angle. After adjusting the angle, release the pull ring 410. Under the action of the spring 411, the positioning pin 408 will automatically insert into the corresponding positioning hole 405 on the rotating sleeve 403, fixing the backrest 5 at the set angle position. When it is necessary to store the chair under the desk... First, fold the backrest 5 forward so that it fits against the seat cushion 3. Specifically, pull the pull ring 410 to separate the positioning pin 408 from the positioning hole 405, then release the pull ring 410 to fix the positioning pin 408 in the folded position of the backrest 5. Align the seat base 7 of the chair body with the snap-fit ​​groove 8 at the bottom of the drawer box 2, so that the chair legs 6 are aligned with the sliding groove 9 at the bottom of the snap-fit ​​groove 8. Push the chair body so that the seat base 7 slides along the snap-fit ​​groove 8, while the chair legs 6 move in the sliding groove 9, until the chair body is completely stored under the desk body. Rotate the limiting screw 10 at the bottom of the snap-fit ​​groove 8 so that it passes through the limiting hole 11 on the seat base 7 to prevent the chair body from sliding out of the snap-fit ​​groove 8 when stored. This completes the storage and fixing of the chair, making it convenient for transportation or storage.

Claims

1. An adjustable desk and chair for lunch break, characterized in that: The desk includes a main body, which includes a desktop panel (1) and a drawer box (2) is fixedly installed in the middle of the bottom of the desktop panel (1). It also includes a chair body, which includes a seat cushion (3). One side of the seat cushion (3) is rotatably connected to the backrest (5) through a backrest adjustment assembly (4). Two sets of chair legs (6) are fixedly installed on both sides of the bottom of the seat cushion (3). Two sets of seat base plates (7) are fixedly installed on the bottom of the chair legs (6). The backrest adjustment assembly (4) includes a fixed arm (401), which is fixedly connected to the middle of one side of the seat cushion (3). Two sets of rotating shafts (402) are fixedly installed on both sides of the fixed arm (401). The rotating shafts (402) are rotatably connected to the rotating sleeve (403). The rotating sleeve (403) is fixedly connected to one end of the adjustment arm (404), and the other end of the adjustment arm (404) is fixedly connected to the backrest (5). It also includes a snap-fit ​​assembly, which includes a snap-fit ​​groove (8) that slides with the seat base plate (7) and is fixedly installed on the bottom of the drawer box (2).

2. The adjustable desk and chair for lunch break according to claim 1, characterized in that: The rotating sleeve (403) has multiple sets of positioning holes (405) symmetrically arranged on one side, and the positioning holes (405) are integrally formed with the rotating sleeve (403).

3. The adjustable desk and chair for lunch break according to claim 1, characterized in that: Limiting plates (406) are fixedly installed at both ends of the rotating shaft (402). A sliding inner cavity (407) is opened at the top of the limiting plate (406). A positioning pin (408) is slidably installed in the sliding inner cavity (407). The positioning pin (408) is slidably engaged with the positioning hole (405).

4. The adjustable desk and chair for lunch break according to claim 3, characterized in that: One side of the positioning pin (408) is fixedly connected to one end of the pull rod (409), the pull rod (409) is slidably engaged with the limiting plate (406) and the sliding inner cavity (407), and a pull ring (410) is fixedly installed on the other end of the pull rod (409).

5. The adjustable desk and chair for lunch break according to claim 3, characterized in that: A spring (411) is slidably installed in the sliding inner cavity (407). The spring (411) is slidably sleeved on the surface of the pull rod (409). One end of the spring (411) abuts against the positioning pin (408), and the other end of the spring (411) abuts against the inner wall of the sliding inner cavity (407).

6. The adjustable desk and chair for lunch break according to claim 1, characterized in that: A sliding groove (9) is provided on one side of the bottom of the snap-fit ​​groove (8), and the sliding groove (9) is movablely engaged with the chair leg (6).

7. An adjustable desk and chair for lunch break according to claim 6, characterized in that: A limiting screw (10) is threaded on the other side of the bottom of the snap-fit ​​groove (8), and a limiting hole (11) is opened on the surface of the seat base plate (7). The limiting screw (10) and the limiting hole (11) are slidably engaged.

8. The adjustable desk and chair for lunch break according to claim 1, characterized in that: Two sets of table legs (12) are fixedly installed on both sides of the bottom of the tabletop (1), and a desk base plate (13) is fixedly installed on the bottom of the table legs (12).

Images