Desk and chair
By designing height-adjustable desks and chairs, the problem of traditional desks and chairs being unable to accommodate students of different heights has been solved, improving comfort and stability and adapting to diverse learning environments.
Patent Information
- Application Number
- CN202520171762.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-25
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-25
AI Technical Summary
Traditional desks and chairs cannot be height-adjusted, making them unsuitable for students of different ages and affecting comfort and health, and failing to meet the diverse needs of the learning environment.
A desk and chair system was designed, with both the desk and chair equipped with an adjustment mechanism. The height can be adjusted by sliding connection of the sleeve rod and inner rod, combined with threaded rod and gear structure, which reduces friction and vibration and improves stability.
It enables flexible height adjustment of desks and chairs to meet the needs of students of different heights, improves comfort and stability, reduces wear and tear and extends service life, and meets the needs of diverse learning environments.
Smart Images
Figure CN223860407U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of teaching aids technology, specifically to a desk and chair. Background Technology
[0002] As basic teaching tools in the classroom, the comfort and functionality of classroom chairs directly affect students' learning experience. Improving the classroom environment and equipment has become an important factor in enhancing teaching quality.
[0003] Traditional school desks and chairs are usually of a fixed height. While this is cheaper to manufacture, it cannot accommodate students of different ages and heights. If the height of the desks and chairs cannot be adjusted to meet different needs, it will not only affect comfort but also lead to incorrect posture, causing a series of health problems. For example, fixed-height desks and chairs may not fit the body shape of some students, and maintaining an inappropriate posture for a long time may cause spinal curvature, decreased vision, and other problems, affecting students' learning efficiency.
[0004] Secondly, fixed-height desks and chairs often cannot meet the needs of different learning environments or spatial layouts. With the diversification of education models, classrooms often need to adjust the height of desks and chairs according to the height of different students, course requirements, and characteristics of classroom activities. However, the fixed height of traditional desks and chairs limits space utilization and flexibility. Utility Model Content
[0005] The purpose of this utility model is to provide a school desk and chair that aims to improve the problem that existing school desks and chairs cannot be height adjusted.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A school desk and chair set, comprising:
[0008] A table, comprising a first adjustment mechanism for adjusting the height of the tabletop, wherein the first adjustment mechanism forms supporting legs for the table; and
[0009] A chair adapted to the table, the chair having a second adjustment mechanism for adjusting the height of the seat, and the second adjustment mechanism forming the supporting legs of the chair;
[0010] The first adjustment mechanism and the second adjustment mechanism have the same structural design based on the same principle;
[0011] The first adjustment mechanism includes a sleeve rod, an inner rod slidably sleeved on the sleeve rod, and an adjustment component that drives the inner rod to slide along the sleeve rod. A tube plug is provided at the end of the sleeve rod, and a central hole is provided on the tube plug for the inner rod to pass through.
[0012] The tube plug includes a connecting part that is sleeved inside the sleeve rod and a folding part that engages with the top of the sleeve rod. The folding part is provided with a plurality of buckles, and the sleeve rod is provided with a latch that engages with the buckles.
[0013] One end of the sleeve rod of the first adjustment mechanism is set on the table leg, and one end of the inner rod of the first adjustment mechanism is set on the tabletop; one end of the sleeve rod of the second adjustment mechanism is set on the chair leg, and one end of the inner rod of the second adjustment mechanism is set on the chair seat.
[0014] Preferably, the adjusting assembly includes a fixed tube, a threaded rod disposed within the fixed tube, a first gear disposed at one end of the threaded rod, a second gear meshing with the first gear, a gear sleeve for mounting the second gear, and an adjusting handle connected to the second gear. The gear sleeve covers the first gear and is disposed on the fixed tube. The second gear is provided with a drive hole that is inserted into the rod end of the adjusting handle. The fixed tube is provided with a threaded hole that meshes with the threaded rod.
[0015] One end of the fixing tube is disposed inside the inner rod, and the other end of the fixing tube is disposed inside the sleeve rod. The inner rod is provided with a through hole that aligns with the driving hole.
[0016] Preferably, the table legs and / or chair legs are provided with soft plastic pads.
[0017] Preferably, the tabletop is provided with a drawer, and the drawer has at least one ventilation mesh on its side.
[0018] Preferably, the insertion end of the connector is provided with an opening groove.
[0019] Preferably, the table has hooks on its top side.
[0020] Preferably, the chair surface is provided with an ergonomic concave structure.
[0021] Preferably, the lowest adjustable height of the table is higher than the highest adjustable height of the chair.
[0022] Preferably, the bottom of the threaded rod is provided with a limiting part that abuts against the port of the fixed tube.
[0023] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:
[0024] 1. The table of this utility model is provided with a first adjustment mechanism for adjusting the height of the tabletop, and the first adjustment mechanism forms the supporting legs of the table; the chair is provided with a second adjustment mechanism for adjusting the height of the seat, and the second adjustment mechanism forms the supporting legs of the chair; thus, the height of the desk and chair is adjustable, suitable for students of different heights, can meet different usage needs, and improve the comfort of use.
[0025] 2. The sleeve rod of this utility model is provided with a tube plug at its end, and the inner rod extends into the sleeve rod through the central hole of the tube plug and slides in connection with the sleeve rod. This can effectively reduce the friction between the inner rod and the sleeve rod, reduce wear, and make the inner rod slide more smoothly along the sleeve rod. It can effectively fix the gap between the inner rod and the sleeve rod, reduce instability caused by shaking or deviation, and reduce vibration and impact during lifting and lowering through the buffering effect of the tube plug, improve the stability of lifting and lowering and extend its service life. Attached Figure Description
[0026] Figure 1 This is a structural schematic diagram of the table described in this utility model;
[0027] Figure 2 This is a disassembly diagram of the table described in this utility model;
[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0029] Figure 4 This is a structural schematic diagram of the chair described in this utility model;
[0030] Figure 5 This is a disassembly diagram of the chair described in this utility model;
[0031] Figure 6 This is a partial schematic diagram of the adjustment component described in this utility model;
[0032] Figure 7 This is a schematic diagram of the threaded rod of the adjusting component described in this utility model;
[0033] Figure 8 This is a partial schematic diagram showing the cooperation between the plug, inner rod, and sleeve rod described in this utility model.
[0034] Explanation of reference numerals in the attached figures:
[0035] 1. Table;
[0036] 11. First adjusting mechanism; 111. Sleeve rod; 1111. Bayonet; 1112. Pipe plug;
[0037] 11121, Center hole; 11122, Connecting part; 111221, Opening groove; 11123, Folding part;
[0038] 111231, Buckle; 112, Inner rod; 1121, Through hole; 113, Adjustment component;
[0039] 1131. Fixed tube; 1132. Threaded rod; 11321. Limiting part; 1133. First gear;
[0040] 1134. Second gear; 11341. Drive hole; 1135. Adjustment handle; 1136. Gear sleeve;
[0041] 12. Table legs; 13. Drawers; 131. Ventilation mesh; 14. Hooks;
[0042] 2. Chair;
[0043] 21. Seat surface; 22. Second adjustment mechanism; 23. Chair legs; 231. Soft plastic foot pads. Detailed Implementation
[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0045] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0046] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.
[0047] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0048] Example
[0049] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, this embodiment provides a desk and chair system, including a table 1 and a chair 2 that are adapted to each other and can be used together. The table 1 is equipped with a first adjustment mechanism 11 for adjusting the height of its desktop (not shown in the figure), and the first adjustment mechanism 11 forms the supporting legs of the table 1. The chair 2 is equipped with a second adjustment mechanism 22 for adjusting the height of its seat 21, and the second adjustment mechanism 22 forms the supporting legs of the chair 2. The first adjustment mechanism 11 and the second adjustment mechanism 22 have the same structural principle. The height of the desktop of the table 1 can be adjusted by extending and retracting the first adjustment mechanism 11 (i.e., extending and retracting the supporting legs of the table 1), and the height of the seat 21 of the chair 2 can be adjusted by extending and retracting the second adjustment mechanism 22 (i.e., extending and retracting the supporting legs of the chair 2). This makes the desk and chair height adjustable, suitable for students of different heights, meeting different usage needs and improving comfort.
[0050] Specifically, the first adjustment mechanism 11 includes a sleeve rod 111, an inner rod 112 slidably sleeved on the sleeve rod 111, and an adjustment component 113 that drives the inner rod 112 to slide along the sleeve rod 111. A tube plug 1112 is provided on the end of the sleeve rod 111, and a central hole 11121 for the inner rod 112 to pass through is provided on the tube plug 1112. The tube plug 1112 includes a connecting part 11122 sleeved in the sleeve rod 111 and a folding part 11123 engaged with the top of the sleeve rod 111. A plurality of buckles 111231 are provided on the folding part 11123, and a latch 1111 engaged with the buckles 111231 is provided on the sleeve rod 111. Thus, the tube plug 1112 can be engaged with the sleeve rod 111 via the folding part 11123, and the buckle 111231 of the folding part 11123 can be engaged with the slot 1111 of the sleeve rod 111, thereby being securely mounted on the end of the sleeve rod 111. The inner rod 112 extends into the sleeve rod 111 through the central hole 11121 of the tube plug 1112 and is slidably connected to the sleeve rod 111. In this way, the contact surfaces of the inner rod 112 and the sleeve rod 111 are isolated by the connecting part 11122 of the tube plug 1112. The tube plug 1112 can be made of rubber, silicone, or plastic, which can effectively reduce the friction between the inner rod 112 and the sleeve rod 111, reduce wear, and make the inner rod 112 slide more smoothly along the sleeve rod 111. It can effectively fix the gap between the inner rod 112 and the sleeve rod 111, reduce instability caused by shaking or displacement, and reduce vibration and impact during lifting and lowering through the buffering effect of the tube plug 1112, improve the stability of lifting and lowering and extend its service life.
[0051] One end of the sleeve rod 111 of the first adjustment mechanism 11 is set on the table leg 12 of the table 1, and one end of the inner rod 112 of the first adjustment mechanism 11 is set on the tabletop of the table 1, so that the first adjustment mechanism 11 forms a height-adjustable support table leg; one end of the sleeve rod 111 of the second adjustment mechanism 22 is set on the chair leg 23 of the chair 2, and one end of the inner rod 112 of the second adjustment mechanism 22 is set on the seat 21 of the chair 2, so that the second adjustment mechanism 22 forms a height-adjustable support chair leg.
[0052] like Figure 6 and Figure 7As shown, in this embodiment, the adjusting assembly 113 includes a fixed tube 1131, a threaded rod 1132 disposed in the fixed tube 1131, a first gear 1133 disposed on one end of the threaded rod 1132, a second gear 1134 meshing with the first gear 1133, a gear sleeve 1136 for mounting the second gear 1134, and an adjusting handle 1135 connected to the second gear 1134. The gear sleeve 1136 covers the first gear 1133 and is disposed on the fixed tube 1131. The second gear 1134 is provided with a drive hole 11341 that is inserted into the rod end of the adjusting handle 1135. The fixed tube 1131 is provided with a threaded hole (not shown in the figure) that meshes with the threaded rod 1132.
[0053] Specifically, rotating the adjustment handle 1135 can drive the second gear 1134 to rotate, which in turn drives the first gear 1133 meshing with the second gear 1134 and the threaded rod 1132 connected to the first gear 1133 to rotate. Since the fixed tube 1131 is provided with a threaded hole that meshes with the threaded rod 1132, when the threaded rod 1132 rotates, it will move up or down along the axial direction of the threaded hole, thereby realizing the telescopic movement of the adjustment component 113. Since one end of the fixing tube 1131 is located inside the inner rod 112 and the other end of the fixing tube 1131 is located inside the sleeve rod 111, and the inner rod 112 is provided with a through hole 1121 that aligns with the drive hole 11341 (that is, the rod end of the adjusting handle 1135 can extend out of the through hole 1121, so that the handle end of the adjusting handle 1135 is located outside the inner rod 112 for easy adjustment of height), when the adjusting component 113 moves in extension and retraction, it can drive the inner rod 112 to slide along the sleeve rod 111, thereby realizing the height adjustment of the desktop and chair surface 21.
[0054] like Figure 4 and Figure 5 As shown, in this embodiment, soft plastic foot pads 231 are provided on the table legs 12 of the table 1 and / or the chair legs 23 of the chair 2. The soft plastic foot pads 231 can be made of rubber, silicone, TPE (thermoplastic elastomer), PE (polyethylene), or PU (polyurethane). By providing soft plastic foot pads 231, the floor can be protected, preventing the desks and chairs from scratching the floor during use, causing scratches or damage, and reducing the noise generated when the desks and chairs are moved, providing a quieter learning environment.
[0055] like Figure 1 and Figure 2As shown, in this embodiment, a drawer 13 is provided on the tabletop of the table 1, and at least one ventilation mesh 131 is provided on the side of the drawer 13. The drawer 13 of the desk is usually used to store books, stationery and other items. The ventilation mesh 131 can promote air circulation in the drawer 13, keep the drawer 13 dry, reduce the possibility of items getting damp and moldy, and help remove odors in the drawer 13.
[0056] like Figure 3 and Figure 8 As shown, in this embodiment, the insertion end of the connecting part 11122 is provided with an opening groove 111221. The opening groove 111221 allows the tube plug 1112 to have a certain degree of adjustability during installation, making it easier to install onto the sleeve rod 111 and facilitating subsequent disassembly and replacement. In addition, the opening groove 111221 can reduce the weight of the tube plug 1112 without affecting its performance, effectively reducing production costs.
[0057] like Figure 2 As shown, in this embodiment, a hook 14 is provided on the top side of the table 1. The hook 14 allows students to conveniently hang their schoolbags, coats, and other items, preventing items from taking up desktop space or piling up on the floor, keeping the desktop tidy, reducing the inconvenience caused by messy items, and improving the utilization rate of the desk space.
[0058] In this embodiment, the seat 21 of the chair 2 is provided with an ergonomic concave structure (not shown in the figure). The concave seat 21 is ergonomically designed, which can better support the natural curve of the buttocks, provide a more comfortable sitting experience, effectively reduce the pressure on the buttocks, waist and other parts of the body caused by prolonged sitting, relieve fatigue caused by prolonged sitting, and improve comfort.
[0059] In this embodiment, the lowest adjustable height of table 1 is higher than the highest adjustable height of chair 2. This ensures that the desktop matches the student's sitting posture, helping the student maintain the natural alignment of their head and spine and avoiding poor posture.
[0060] like Figure 7 As shown, in this embodiment, the bottom of the threaded rod 1132 is provided with a limiting part 11321 that abuts against the port of the fixed tube 1131. That is, the size of the limiting part 11321 is larger than the size of the port of the fixed tube 1131, thereby preventing the threaded rod 1132 from dislodging from the port of the fixed tube 1131 when the threaded rod 1132 rotates and moves upward along the axial direction of the fixed tube 1131, thus ensuring the stability of the overall structural connection.
[0061] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A type of school desk and chair, characterized in that, include: A table, which is provided with a first adjustment mechanism for adjusting the height of the tabletop, and the first adjustment mechanism forms the supporting legs of the table; and A chair adapted to the table, the chair having a second adjustment mechanism for adjusting the height of the seat, and the second adjustment mechanism forming the supporting legs of the chair; The first adjustment mechanism and the second adjustment mechanism have the same structural design based on the same principle; The first adjustment mechanism includes a sleeve rod, an inner rod slidably sleeved on the sleeve rod, and an adjustment component that drives the inner rod to slide along the sleeve rod. A tube plug is provided at the end of the sleeve rod, and a central hole is provided on the tube plug for the inner rod to pass through. The tube plug includes a connecting part that is sleeved inside the sleeve rod and a folding part that engages with the top of the sleeve rod. The folding part is provided with a plurality of buckles, and the sleeve rod is provided with a latch that engages with the buckles. One end of the sleeve rod of the first adjustment mechanism is set on the table leg, and one end of the inner rod of the first adjustment mechanism is set on the tabletop; one end of the sleeve rod of the second adjustment mechanism is set on the chair leg, and one end of the inner rod of the second adjustment mechanism is set on the chair seat.
2. The desks and chairs according to claim 1, characterized in that: The adjustment assembly includes a fixed tube, a threaded rod disposed inside the fixed tube, a first gear disposed at one end of the threaded rod, a second gear meshing with the first gear, a gear sleeve for mounting the second gear, and an adjustment handle connected to the second gear. The gear sleeve covers the first gear and is disposed on the fixed tube. The second gear is provided with a drive hole that is inserted into the rod end of the adjustment handle. The fixed tube is provided with a threaded hole that meshes with the threaded rod. One end of the fixing tube is disposed inside the inner rod, and the other end of the fixing tube is disposed inside the sleeve rod. The inner rod is provided with a through hole that aligns with the driving hole.
3. The desks and chairs according to claim 1, characterized in that: The table legs and / or chair legs are provided with soft plastic foot pads.
4. The desks and chairs according to claim 1, characterized in that: The tabletop is provided with a drawer, and the drawer has at least one ventilation mesh on its side.
5. The desks and chairs according to claim 1, characterized in that: The connector has an opening slot at its insertion end.
6. The desks and chairs according to claim 1, characterized in that: The table has hooks on its top side.
7. The desks and chairs according to claim 1, characterized in that: The chair has an ergonomic concave structure on its seat surface.
8. The desks and chairs according to claim 1, characterized in that: The lowest adjustable height of the table is higher than the highest adjustable height of the chair.
9. The desks and chairs according to claim 2, characterized in that: The bottom of the threaded rod is provided with a limiting part that abuts against the port of the fixed tube.