Folding desk and chair convenient for noon break of student
By designing a folding desk and chair with a tilt frame and an adjustment block, the problem of low practicality in the prior art desk and chair is solved when there are many students and the space is crowded, and the convenience of providing students with lunch break without occupying additional space is achieved.
Patent Information
- Application Number
- CN202510506684.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2025-05-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing folding desks and chairs for students to have lunch breaks are difficult to effectively utilize the space when there are many students and the classroom space is crowded, resulting in a reduction in the practicality of the device.
A folding desk and chair including legs, seat plate, backrest, table plate and storage box is designed. Through the combination of an inclined frame, a first round rod, an adjustment block and a slide chute, the tilt placement of the table plate and the backrest is achieved, and the table plate space is utilized without taking up additional space.
The design allows students to take a afternoon break without occupying additional space, improving the practicality and adaptability of desks and chairs, and is suitable for environments with more students and more crowded classroom space.
Smart Images
Figure CN120036590A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of desks and chairs, and in particular to a foldable desk and chair that is convenient for students to take a lunch break. Background Art
[0002] Desks and chairs are commonly used learning tools for students in schools or educational institutions. They are the desks and chairs used by students in class. In order to improve students' learning effects, lunch breaks are generally arranged for students to ensure that students can get enough rest and effectively eliminate brain fatigue.
[0003] When using the current foldable desks and chairs for students to take a nap, the staff often finds that although the current foldable desks and chairs for students to take a nap can allow the chairs to be at a certain angle for students to lie down for a nap, they need to occupy more space in the back row, making it difficult to adapt to the situation where there are many students and the classroom space is relatively crowded, thereby reducing the practicality of the device. Summary of the invention
[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to provide a foldable desk and chair that is convenient for students to take a lunch break.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a foldable desk and chair convenient for students to take lunch breaks, comprising legs, a seat plate fixedly connected to the legs, a backrest arranged on the legs, a table board arranged on the legs, a storage box placed under the legs, a headrest fixed to the backrest by sewing, a folding structure arranged on the legs, the folding structure mainly composed of a tilting frame, the tilting frame fixedly connected to the legs, the tilting frame is rotatably connected to the table board, two columns fixedly connected to the legs, a first round rod fixedly connected to the columns, adjustment blocks fixedly connected on both sides of the backrest, a slide groove is provided on the adjustment block, and the slide groove is slidably connected to the first round rod.
[0006] The effect achieved by the above components is: when students need to take a nap, they can rotate the table top so that it fits on the tilting frame, and then the table top can be tilted and placed, and then the first round rod is driven to slide in the slide groove, so that the adjustment block drives the backrest to be tilted and placed, and the back of the backrest fits on the upper surface of the table top, so that the space of the table top can be used, and there is no need to enlarge the space in the front and back positions, and then the headrest is lifted to the top of the backrest and placed on the table top, so that students can rest their heads, and bedding or books can be placed in the storage box, thereby avoiding the problem that the current foldable desks and chairs that are convenient for students to take a nap can allow the chairs to be at a certain angle for students to lie down for a nap, but they need to occupy more space in the back row, which is difficult to adapt to the situation where there are many students and the classroom space is relatively crowded, thereby reducing the practicality of the device.
[0007] Preferably, a clamping groove is formed in the adjusting block, and a second round rod is fixedly connected to the column.
[0008] The effects achieved by the above components are as follows: When not taking a lunch break, the clamping groove is clamped on the second round rod to limit the adjusting block, so that the backrest is in a vertical state. When taking a lunch break, the adjusting block is pulled upward, so that the first round rod slides in the sliding groove, and the clamping groove is separated from the second round rod to release the limit on the adjusting block.
[0009] Preferably, two support columns are rotatably connected to the table board, a limiting column is slidably connected in the support column, and two limiting grooves are formed in the inclined frame.
[0010] The effects achieved by the above components are as follows: During class, the table board is rotated to a horizontal state, and then the two support columns are rotated so that the support columns are above the limiting grooves, and then the limiting columns are slid to be clamped into the corresponding limiting grooves to support the table board.
[0011] Preferably, a sliding block is slidably inserted on the support column, and the sliding block is fixedly connected to the limiting column.
[0012] The effects achieved by the above components are as follows: Students can drive the limiting column to slide by sliding the sliding block.
[0013] Preferably, a clamping rod is slidably inserted on the sliding block, and a clamping groove is formed on the support column.
[0014] The effects achieved by the above components are as follows: After the limiting column is clamped into the limiting groove, the clamping rod is slid to be clamped into the clamping groove, so as to limit the sliding block and further improve the stability of the table board.
[0015] Preferably, an adjusting structure is provided on the leg, and the adjusting structure is mainly composed of four supporting table legs, and the four supporting table legs are all slidably sleeved on the leg.
[0016] The effects achieved by the above components are as follows: The four supporting table legs support the leg, and the height of the desk and chair can be adjusted according to the height of the student by sliding the leg.
[0017] Preferably, a connecting rod is fixedly connected to the two supporting table legs together, a threaded rod is rotatably connected to the connecting rod, and a threaded sleeve is fixedly connected to the leg.
[0018] The effects achieved by the above components are as follows: Rotating the connecting rod can drive the threaded sleeve to move up and down, and further drive the leg to move up and down, making the operation more stable.
[0019] Preferably, a first bevel gear is fixedly connected to the threaded rod, a second bevel gear is meshed with the first bevel gear, the second bevel gear is rotatably connected to the supporting table leg, and a crank is fixedly connected to the second bevel gear.
[0020] The effects achieved by the above components are as follows: The student can drive the second bevel gear to rotate by turning the crank, and then drive the threaded rod to rotate through the first bevel gear, making the adjustment operation more convenient.
[0021] Compared with the prior art, the advantages and positive effects of the present invention are that, in the present invention, by setting a folding structure, when the student needs to take a lunch break, the student can turn the table board so that the table board fits on the inclined frame, then the table board can be placed obliquely, and then drive the first round rod to slide in the chute, so that the adjusting block drives the backrest to be placed obliquely, and the back surface of the backrest fits on the upper surface of the table board, making use of the space of the table board, without enlarging the space between the front and the back. Then, lift the headrest above the backrest and place it on the table board, allowing the student to rest their head on it. Bedding, books, etc. can be placed in the storage box, thus avoiding the situation that the current folding desks and chairs for students' lunch breaks can make the chair at a certain angle for the student to lie down and take a lunch break, but it needs to occupy more space in the back row and is difficult to adapt to the situation where there are many students and the classroom space is relatively crowded, resulting in a reduction in the practicality of the device. Brief Description of the Drawings
[0022] Figure 1 is a schematic three-dimensional structure diagram of a folding desks and chairs for students' lunch breaks proposed by the present invention; Figure 2 is a partial schematic diagram of the folding structure of a folding desks and chairs for students' lunch breaks proposed by the present invention; Figure 3 is a partial schematic diagram of the adjustment structure of a folding desks and chairs for students' lunch breaks proposed by the present invention; Figure 4 is a folding desks and chairs for students' lunch breaks proposed by the present invention Figure 1 is an enlarged view of part A in the present invention.
[0023] Legend: 1, leg; 2, seat board; 3, backrest; 4, table board; 5, folding structure; 51, inclined frame; 52, column; 53, first round rod; 54, second round rod; 55, adjusting block; 56, chute; 57, card slot; 58, support column; 59, limit groove; 510, limit post; 511, sliding block; 512, clamping rod; 513, clamping groove; 6, adjustment structure; 61, support table leg; 62, threaded sleeve; 63, connecting rod; 64, threaded rod; 65, first bevel gear; 66, second bevel gear; 67, crank; 7, storage box; 8, headrest. Detailed Description of the Invention
[0024] Example 1, as Figure 1As shown in the figure, a folding school desk and chair for students' lunch breaks includes legs 1. A seat board 2 is fixedly connected to the legs 1. A backrest 3 is arranged on the legs 1. A table board 4 is arranged on the legs 1. A storage box 7 is placed below the legs 1. A headrest 8 is fixedly stitched to the backrest 3 with a needle and thread.
[0025] Referring to Figure 2 and Figure 4 , a folding structure 5 is arranged on the legs 1. The folding structure 5 is mainly composed of an inclined frame 51. The inclined frame 51 is fixedly connected to the legs 1. The inclined frame 51 is rotatably connected to the table board 4. Two upright posts 52 are fixedly connected to the legs 1. A first round rod 53 is fixedly connected to the upright posts 52. Adjusting blocks 55 are respectively fixedly connected to both sides of the backrest 3. A sliding groove 56 is formed in the adjusting block 55. The sliding groove 56 is slidably connected to the first round rod 53. When a student needs to take a lunch break, rotate the table board 4 so that the table board 4 fits on the inclined frame 51, then the table board 4 can be placed obliquely. Then drive the first round rod 53 to slide in the sliding groove 56, so that the adjusting block 55 drives the backrest 3 to be placed obliquely, and the back surface of the backrest 3 fits on the upper surface of the table board 4. The space of the table board 4 can be utilized, without the need to enlarge the space between the front and rear positions. Then lift the headrest 8 above the backrest 3 and place it on the table board 4, so that the student can rest his head on it. Bedding or books can be placed in the storage box 7, etc. Thus, it avoids the situation that although the current folding school desk and chair for students' lunch breaks can make the chair at a certain angle for the student to lie down and take a lunch break, it needs to occupy more space in the back row and is difficult to adapt to the situation where there are many students and the classroom space is relatively crowded, resulting in a reduction in the practicality of the device. A card slot 57 is formed in the adjusting block 55. A second round rod 54 is fixedly connected to the upright post 52. When not taking a lunch break, snap the card slot 57 onto the second round rod 54 to limit the adjusting block 55, so that the backrest 3 is in a vertical state. When taking a lunch break, pull up the adjusting block 55 to make the first round rod 53 slide in the sliding groove 56, so that the card slot 57 moves away from the second round rod 54, releasing the limit on the adjusting block 55. Two support columns 58 are rotatably connected to the table board 4. A limiting column 510 is slidably connected in the support column 58. Two limiting grooves 59 are formed in the inclined frame 51. During class, rotate the table board 4 so that the table board 4 is in a horizontal state, and then rotate the two support columns 58 so that the support columns 58 are above the limiting grooves 59. Then slide the limiting column 510 to snap into the corresponding limiting groove 59 to support the table board 4. A sliding block 511 is slidably inserted into the support column 58. The sliding block 511 is fixedly connected to the limiting column 510. The student can drive the limiting column 510 to slide by sliding the sliding block 511. A positioning rod 512 is slidably inserted into the sliding block 511. A positioning groove 513 is formed in the support column 58. After the limiting column 510 snaps into the limiting groove 59, slide the positioning rod 512 to make it snap into the positioning groove 513 to limit the sliding block 511 and further improve the stability of the table board 4.
[0026] Referring to Figure 3, an adjusting structure 6 is provided on the outrigger 1. The adjusting structure 6 mainly consists of four supporting table legs 61. The four supporting table legs 61 are all slidably sleeved on the outrigger 1. The four supporting table legs 61 support the outrigger 1, and the height of the desk and chair can be adjusted according to the height of the student by sliding the outrigger 1. A connecting rod 63 is fixedly connected to the two supporting table legs 61. A threaded rod 64 is rotatably connected to the connecting rod 63. A threaded sleeve 62 is fixedly connected to the outrigger 1. Rotating the connecting rod 63 can drive the threaded sleeve 62 to move up and down, thereby driving the outrigger 1 to move up and down, making the operation more stable. A first bevel gear 65 is fixedly connected to the threaded rod 64. A second bevel gear 66 is meshed with the first bevel gear 65. The second bevel gear 66 is rotatably connected to the supporting table leg 61. A crank 67 is fixedly connected to the second bevel gear 66. The student can drive the second bevel gear 66 to rotate by rotating the crank 67, thereby making the first bevel gear 65 drive the threaded rod 64 to rotate, making the adjustment operation more convenient.
[0027] Working principle: When students need to take a lunch break, they rotate the tabletop 4 so that the tabletop 4 fits on the inclined rack 51, and the tabletop 4 can be placed obliquely. Then, it drives the first round rod 53 to slide in the chute 56, so that the adjusting block 55 drives the backrest 3 to be placed obliquely, and the back surface of the backrest 3 fits on the upper surface of the tabletop 4. The space of the tabletop 4 can be utilized without enlarging the space between the front and rear positions. Then, the headrest 8 is lifted above the backrest 3 and placed on the tabletop 4, allowing students to rest their heads. Bedding, books, etc. can be placed in the storage box 7. Thus, it avoids the situation that although the current folding desks and chairs for students' lunch breaks can make the chair at a certain angle for students to lie down and take a lunch break, they need to occupy more space in the back row and are difficult to adapt to the situation where there are many students and the classroom space is relatively crowded, resulting in a reduction in the practicality of the device. When not taking a lunch break, the card slot 57 is stuck on the second round rod 54 to limit the adjusting block 55, so that the backrest 3 is in a vertical state. When taking a lunch break, the adjusting block 55 is pulled upward, so that the first round rod 53 slides in the chute 56, making the card slot 57 away from the second round rod 54 and releasing the limit on the adjusting block 55. During class, the tabletop 4 is rotated to make the tabletop 4 in a horizontal state, and then the two support columns 58 are rotated so that the support columns 58 are above the limit slots 59. Then, the limit post 510 is slid and snapped into the corresponding limit slot 59 to support the tabletop 4. Students can drive the limit post 510 to slide by sliding the slider 511. After the limit post 510 is snapped into the limit slot 59, the positioning rod 512 is slid and snapped into the positioning slot 513 to limit the slider 511, further improving the stability of the tabletop 4. The four support table legs 61 support the legs 1, and the height of the desks and chairs can be adjusted according to the students' heights by sliding the legs 1. Rotating the connecting rod 63 can drive the threaded sleeve 62 to move up and down, and then drive the legs 1 to move up and down, making the operation more stable. Students can drive the second bevel gear 66 to rotate by rotating the crank 67, and then make the first bevel gear 65 drive the threaded rod 64 to rotate, making the adjustment operation more convenient.
[0028] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in any other form. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as they do not depart from the technical solution content of the present invention, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.
Claims
1. A foldable desk and chair for students to take a lunch break, comprising a supporting leg (1), characterized in that: The support leg (1) is fixedly connected to a seat plate (2), the support leg (1) is provided with a backrest (3), the support leg (1) is provided with a table top (4), a storage box (7) is placed below the support leg (1), a headrest (8) is fixed to the backrest (3) by sewing, the support leg (1) is provided with a folding structure (5), the folding structure (5) mainly consists of a tilting frame (51), the tilting frame (51) is fixedly connected to the support leg (1), the tilting frame (51) is rotatably connected to the table top (4), two columns (52) are fixedly connected to the support leg (1), the column (52) is fixedly connected to a first round rod (53), and adjustment blocks (55) are fixedly connected to both sides of the backrest (3), and a slide groove (56) is provided on the adjustment block (55), and the slide groove (56) is slidably connected to the first round rod (53).
2. The foldable desk and chair for students to take a lunch break according to claim 1 is characterized by: The adjusting block (55) is provided with a slot (57), and the upright column (52) is fixedly connected with a second round rod (54).
3. The foldable desk and chair for students to take a lunch break according to claim 2 is characterized by: The table top (4) is rotatably connected to two support columns (58), the support columns (58) are slidably connected to limit columns (510), and the tilting frame (51) is provided with two limit slots (59).
4. The foldable desk and chair for students to take a lunch break according to claim 3 is characterized by: A sliding block (511) is slidably inserted on the support column (58), and the sliding block (511) is fixedly connected to the limiting column (510).
5. The foldable desk and chair for students to take a lunch break according to claim 4 is characterized by: A locking rod (512) is slidably inserted on the sliding block (511), and a locking groove (513) is provided on the supporting column (58).
6. The foldable desk and chair for students to take a lunch break according to claim 5 is characterized by: The supporting leg (1) is provided with an adjustment structure (6), and the adjustment structure (6) is mainly composed of four supporting legs (61), and the four supporting legs (61) are all slidably sleeved on the supporting leg (1).
7. The foldable desk and chair for students to take a lunch break according to claim 6 is characterized by: The two support legs (61) are commonly and fixedly connected to a connecting rod (63), a threaded rod (64) is rotatably connected to the connecting rod (63), and a threaded sleeve (62) is fixedly connected to the supporting leg (1).
8. The foldable desk and chair for students to take a lunch break according to claim 7 is characterized by: The threaded rod (64) is fixedly connected to a first bevel gear (65), the first bevel gear (65) is meshingly connected to a second bevel gear (66), the second bevel gear (66) is rotatably connected to the support table leg (61), and the second bevel gear (66) is fixedly connected to a crank (67).