Novel adjustable lunch break desk and chair
Patent Information
- Application Number
- CN202521620542.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-07-31
AI Technical Summary
[0002]课桌椅是常见的学习工具,不仅常见于校园,家庭以及办公当中也经常见到,一般的课桌椅通常是分离的,桌子有简单的支架连接桌板,椅子也大多为传统靠背椅子,在午休时只能够趴在桌上进行休息,非常不舒适,平常长期的趴伏在桌子上对于腰椎具有一定伤害,危害身体健康
[0008] The beneficial effects of this utility model are as follows: By manually pulling the chair base, the movable rod moves along the inner wall groove. After moving, the locking structure will leave the locking position on the support plate. Under the action of the spring, the support plate is raised with the movable U-shaped rod to place the feet. After the chair base is pulled outward, the backrest is rotated to a horizontal state. At the same time, the front U-shaped rod is pulled out to support the bottom of the backrest with the T-shaped support plate. After the front U-shaped rod is pulled out, the locking structure locks the position.
Smart Images

Figure CN224747639U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of school desks and chairs, specifically a new type of adjustable lunch break school desk and chair. Background Technology
[0002] School desks and chairs are common learning tools, not only in schools, but also frequently seen in homes and offices. Usually, school desks and chairs are separate, with the desk having a simple frame connecting the tabletop, and the chairs mostly being traditional backrest chairs. During lunch breaks, one can only rest by lying on the desk, which is very uncomfortable. Lying on the desk for a long time can cause damage to the lumbar spine and harm one's health. Utility Model Content
[0003] In view of the problems existing in the prior art, this utility model discloses a novel adjustable lunch break desk and chair. The technical solution adopted includes a tabletop and a U-shaped table frame. The remaining parts include an inner wall groove of the table frame, a lifting structure, a movable U-shaped rod, a movable rod, an inner wall sliding groove, a stabilizing shaft in the sliding groove, a locking structure, a support plate, a connecting rod, a chair base, a seat, a vertical rod, a horizontal rod, an insertion channel, a front U-shaped rod, a T-shaped support plate, a seat groove, a backrest, a mounting plate, and a retaining wall. The tabletop is supported by a U-shaped frame, with an inner groove on the frame's inner wall. A lifting structure is installed within this groove, allowing a movable U-shaped rod to be mounted. When the user lies down, the U-shaped rod rises using this structure. A one-piece support plate is integrated on the right side of the movable U-shaped rod, facilitating foot placement as the rod rises. An inner sliding groove is located on the bottom inner wall of the U-shaped frame, containing a stabilizing shaft. The two ends of the movable rod are fitted into the inner wall groove and are movably mounted with the stabilizing shaft inside the groove. The movable rod is equipped with a locking structure to lock the height of the support plate. When the movable rod is pulled outward along the inner wall groove, the locking structure can be released from the locked position on the support plate, thereby raising the support plate under the action of the lifting structure. The front side of the movable rod is connected to the chair base frame via a connecting rod. A vertical rod is fixed on the chair base frame, and a seat plate is fixed on the vertical rod. A horizontal rod is connected between the vertical rods. An insertion channel is opened at the front end of the vertical rod, and the two ends of the front U-shaped rod are inserted into the insertion channel. A T-shaped support plate is integrally formed on the front U-shaped rod. A seat plate slot is opened on the seat plate. The lower end of the backrest is rotatably connected through a shaft in the seat plate slot. Mounting plates are fixed on the left and right ends of the front side of the seat plate. Through holes are opened on the mounting plates, and a blocking shaft passes through the through holes. The blocking shaft blocks the backrest. When it is necessary to lie down, the blocking shaft is pulled out and the front U-shaped rod is pulled outward. The T-shaped support plate supports the backrest when it is adjusted to a horizontal position.
[0004] As a preferred technical solution of this utility model, the lifting structure includes an inner wall groove stabilizing shaft and a spring. A vertical inner wall groove stabilizing shaft is fixed in the inner wall groove of the table frame. Both ends of the movable U-shaped rod are placed in the inner wall groove of the table frame and are movably fitted with the inner wall groove stabilizing shaft. The spring is sleeved on the outside of the inner wall groove stabilizing shaft, with its lower end fixed to the bottom surface of the inner wall groove of the table frame and its upper end connected to the bottom surface of the movable U-shaped rod. Foot pads are fixed on the support plate.
[0005] As a preferred technical solution of this utility model, the locking structure includes a bottom fixed frame and a U-shaped locking rod. The bottom fixed frame is integrally formed at the center of the bottom surface of the support plate, and the U-shaped locking rod is integrally formed on the front side of the movable rod. The upper horizontal part of the U-shaped locking rod is movably inserted into the bottom fixed frame to lock the support plate at a certain height. When the movable rod is pulled outward, the U-shaped locking rod will leave the bottom fixed frame, causing the support plate to leave the locked state. Then, the support plate will be lifted under the action of the spring.
[0006] As a preferred technical solution of this utility model, a locking structure is provided on the side of the horizontal rod. The locking structure locks the front U-shaped rod. The locking structure includes blind holes, an annular channel, a locking shaft, a pull plate, and a locking spring. Several blind holes are distributed on the left side of the front U-shaped rod. A through hole is opened between the front end of the left horizontal rod and the insertion channel. An annular channel is integrally formed on the left side of the left horizontal rod at the hole. A locking spring is fixed on the left side of the annular channel. The locking shaft is inserted from the annular channel, and its extended end is inserted into the blind hole to lock the position of the front U-shaped rod. A pull plate is fixed on the outer end. The pull plate is fixedly connected to the locking spring. The locking spring is entirely sleeved on the outside of the locking shaft.
[0007] As a preferred technical solution of this utility model, the barrier shaft is made of rigid material.
[0008] The beneficial effects of this utility model are as follows: By manually pulling the chair base, the movable rod moves along the inner wall groove. After moving, the locking structure will leave the locking position on the support plate. Under the action of the spring, the support plate is raised with the movable U-shaped rod to place the feet. After the chair base is pulled outward, the backrest is rotated to a horizontal state. At the same time, the front U-shaped rod is pulled out to support the bottom of the backrest with the T-shaped support plate. After the front U-shaped rod is pulled out, the locking structure locks the position. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model;
[0010] Figure 2 This is a schematic diagram of the structure of this utility model from below;
[0011] Figure 3 This is a schematic diagram of some components of the present invention.
[0012] In the diagram: 1. Tabletop; 2. U-shaped table frame; 3. Inner wall groove of table frame; 4. Stabilizing shaft of inner wall groove; 5. Spring; 51. Movable U-shaped rod; 6. Movable rod; 61. Bottom fixing frame; 62. U-shaped locking rod; 201. Inner wall slide groove; 202. Stabilizing shaft inside slide groove; 77. Locking structure; 8. Support plate; 9. Connecting rod; 9. Chair base frame; 91. Seat plate; 10. Vertical rod; 11. Horizontal rod; 12. Insertion channel; 13. Front U-shaped rod; 13. Blind hole; 131. Annular channel; 132. Locking shaft; 133. Pull plate; 134. Locking spring; 135. T-shaped support plate; 14. Seat plate groove; 15. Backrest plate; 16. Mounting plate; 17. Barrier shaft; 18. Detailed Implementation
[0013] Example 1
[0014] like Figures 1 to 3 As shown, this utility model discloses a novel adjustable lunch break desk and chair. The technical solution includes a tabletop 1 and a U-shaped table frame 2. Other components include an inner wall groove 3, a lifting structure, a movable U-shaped rod 51, a movable rod 6, an inner wall sliding groove 201, a stabilizing shaft 202 within the sliding groove, a locking structure, a support plate 77, a connecting rod 8, a chair base 9, a seat 91, a vertical rod 10, a horizontal rod 11, an insertion channel 12, a front U-shaped rod 13, a T-shaped support plate 14, a seat groove 15, a backrest 16, a mounting plate 17, and a blocking shaft 18. The tabletop 1 is supported by the U-shaped table frame 2. An inner wall groove 3 is formed on the inner wall of the U-shaped table frame 2. A lifting structure is installed within the inner wall groove 3 to install the movable U-shaped rod 51. An integrally formed support plate 77 is located on the right side of the movable U-shaped rod 51. An inner wall sliding groove 201 is formed on the inner side wall of the bottom of the U-shaped table frame 2. An inner wall groove 201 is fixed with a stabilizing shaft 202. The two ends of a movable rod 6 are fitted into the inner wall groove 201 and are movably mounted with the stabilizing shaft 202. A locking structure is provided on the movable rod 6 to lock the height of the support plate 77. The front side of the movable rod 6 is connected to the chair base frame 9 via a connecting rod 8. A vertical rod 10 is fixed on the chair base frame 9. A seat plate 91 is fixed on the vertical rod 10. A horizontal rod 11 is connected between the vertical rods 10. An insertion channel 12 is opened at the front end of the vertical rod. The two ends of the front U-shaped rod 13 are inserted into the insertion channel 12. A T-shaped support plate 14 is integrally formed on the front U-shaped rod 13. A seat plate slot 15 is opened on the seat plate 91. The lower end of the backrest plate 16 is rotatably connected through a shaft in the seat plate slot 15. Mounting plates 17 are fixed on the left and right ends of the front side of the seat plate 91. A through hole is opened on the mounting plate 17. A blocking shaft 18 passes through the through hole and blocks the backrest plate 16.
[0015] As a preferred technical solution of this utility model, a vertical inner wall groove stabilizing shaft 4 is fixed in the inner wall groove 3 of the table frame. Both ends of the movable U-shaped rod 51 are placed in the inner wall groove 3 of the table frame and are movably fitted with the inner wall groove stabilizing shaft 4. The spring 5 is sleeved on the inner wall groove stabilizing shaft 4, with its lower end fixed to the bottom surface of the inner wall groove 3 of the table frame and its upper end connected to the bottom surface of the movable U-shaped rod 51. A foot pad 71 is fixed on the support plate 77.
[0016] As a preferred technical solution of this utility model, the locking structure includes a bottom fixing frame 61 and a U-shaped locking rod 62. The bottom fixing frame 61 is integrally formed at the center of the bottom surface of the support plate 77, and the U-shaped locking rod 62 is integrally formed on the front side of the movable rod 6. The upper horizontal part of the U-shaped locking rod 62 is movably inserted into the bottom fixing frame 61 to lock the support plate 77 at a certain height.
[0017] As a preferred technical solution of this utility model, a locking structure is provided on the side of the horizontal rod 11. The locking structure locks the front U-shaped rod 13. The locking structure includes a blind hole 131, an annular channel 132, a locking shaft 133, a pull plate 134, and a locking spring 135. Several blind holes 131 are distributed on the left side of the front U-shaped rod 13. A through hole is opened between the front end of the left horizontal rod 11 and the insertion channel 12. An annular channel 132 is integrally formed on the left side of the left horizontal rod 11 at the hole. A locking spring 135 is fixed on the left side of the annular channel 132. The locking shaft 133 is inserted from the annular channel 132, and its extended end is inserted into the blind hole 131 to lock the position of the front U-shaped rod 13. A pull plate 134 is fixed on the outer end. The pull plate 134 is fixedly connected to the locking spring 135. The locking spring 135 is sleeved on the outside of the locking shaft 133.
[0018] As a preferred technical solution of this utility model, the barrier shaft 18 is made of rigid material.
[0019] The working principle of this utility model is as follows: When a lunch break is needed, the chair base frame is manually pulled outward, which moves the movable rod. When it moves, the U-shaped locking rod is taken away from the bottom fixed frame, so that the support plate is no longer locked. At this time, under the action of the spring, the movable U-shaped rod and the support plate are raised. After being raised, it is convenient to place the feet on the support plate when lying down to rest. After the chair base frame is pulled outward, the front U-shaped rod is pulled out, the blocking shaft is pulled out, and the backrest rotates down to stop at the T-shaped support plate. At this time, the backrest is in a horizontal state.
[0020] Components not described in detail in this article are existing technologies.
[0021] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.
Claims
1. A novel adjustable lunch break desk and chair, comprising a tabletop (1) and a U-shaped table frame (2), characterized in that: Includes table frame inner wall groove (3), lifting structure, movable U-shaped rod (51), movable rod (6), inner wall slide (201), slide inner stabilizing shaft (202), locking structure, support plate (77), connecting rod (8), chair base frame (9), seat plate (91), vertical rod (10), horizontal rod (11), insertion channel (12), front U-shaped rod (13), T-shaped support plate (14), seat plate groove (15), backrest plate (16), mounting plate (17), and barrier shaft (18). 8); The tabletop (1) is supported by a U-shaped table frame (2); the inner wall of the U-shaped table frame (2) has an inner wall groove (3), and a lifting structure is provided in the inner wall groove (3) to install the movable U-shaped rod (51); the right side of the movable U-shaped rod (51) has an integrally formed support plate (77); the inner wall groove (201) is opened on the bottom inner side wall of the U-shaped table frame (2), and a stabilizing shaft (202) is fixed in the inner wall groove (201), and the movable rod (6) is equipped with a support plate (77) at both ends. The movable rod (6) is placed in the inner wall groove (201) and is movably fitted with the stabilizing shaft (202) in the groove; a locking structure is provided on the movable rod (6) to lock the height of the support plate (77); the front side of the movable rod (6) is connected to the chair base frame (9) through the connecting rod (8), the chair base frame (9) is fixed with a vertical rod (10), the seat plate (91) is fixed on the vertical rod (10), and a horizontal rod (11) is connected between the vertical rods (10); the front end of the vertical rod (10) has an insertion channel (12), and the front side U The two ends of the U-shaped rod (13) are inserted into the insertion channel (12); the front U-shaped rod (13) is integrally formed with a T-shaped support plate (14); the seat plate (91) has a seat plate slot (15), and the lower end of the backrest plate (16) is rotatably connected through the shaft in the seat plate slot (15); the left and right ends of the front side of the seat plate (91) are fixed with mounting plates (17), the mounting plates (17) have through holes, and the blocking shaft (18) passes through the through holes and blocks the backrest plate (16).
2. The novel adjustable lunch break desk and chair according to claim 1, characterized in that: The lifting structure includes an inner wall groove stabilizing shaft (4) and a spring (5); a vertical inner wall groove stabilizing shaft (4) is fixed in the inner wall groove (3) of the table frame; both ends of the movable U-shaped rod (51) are placed in the inner wall groove (3) of the table frame and are movably fitted with the inner wall groove stabilizing shaft (4); the spring (5) is fitted around the inner wall groove stabilizing shaft (4), with its lower end fixed to the bottom surface of the inner wall groove (3) of the table frame and its upper end connected to the bottom surface of the movable U-shaped rod (51).
3. The novel adjustable lunch break desk and chair according to claim 1, characterized in that: Foot pads (71) are fixed on the support plate (77).
4. The novel adjustable lunch break desk and chair according to claim 1, characterized in that: The locking structure includes a bottom fixing frame (61) and a U-shaped locking rod (62); the bottom fixing frame (61) is integrally formed at the center of the bottom surface of the support plate (77); the front side of the movable rod (6) is integrally formed with a U-shaped locking rod (62), and the upper horizontal part of the U-shaped locking rod (62) is movably inserted into the bottom fixing frame (61) to lock the support plate (77) at a certain height.
5. The novel adjustable lunch break desk and chair according to claim 1, characterized in that: The horizontal rod (11) has a locking structure on its side, which locks the front U-shaped rod (13). The locking structure includes a blind hole (131), an annular channel (132), a locking shaft (133), a pull plate (134), and a locking spring (135). Several blind holes (131) are distributed on the left side of the front U-shaped rod (13). A through hole is opened between the front end of the left horizontal rod (11) and the insertion channel (12). The left side is located at the hole and is integrally formed with an annular channel (132). A locking spring (135) is fixed on the left side of the annular channel (132). The locking shaft (133) is inserted from the annular channel (132) and its extension end is inserted into the blind hole (131) to lock the position of the front U-shaped rod (13). A pull plate (134) is fixed on the outer end and is fixedly connected to the locking spring (135). The locking spring (135) is sleeved on the outside of the locking shaft (133).
6. The novel adjustable lunch break desk and chair according to claim 1, characterized in that: The barrier shaft (18) is made of a rigid material.