Student lunch break chair

Abstract

The utility model discloses a student lunch break seat relates to student desk and chair technical field, solved the student lunch break seat support structure reliability poor of prior art leads to the problem of low safety factor. The utility model discloses a base, the base is fixedly provided with the cushion part on, and the base is hinged with backrest support frame, and the upper portion of backrest support frame is connected with backrest part, and the lower end of backrest support frame is hinged with one end of controllable gas spring, and the other end of controllable gas spring is hinged with the base and is connected, through controllable gas spring, the pitch angle of backrest part can be locked, and stable support can be played, the horizontal support rod is slidably arranged on the base, and the leg support part is hinged on the horizontal support rod, and three -point type sitting posture correction belt is equipped on the backrest part. The utility model discloses controllable gas spring as the angle adjustment and support structure of backrest part, and the bearing capacity is stronger, and the structural stability is higher, can provide stable and reliable support for student lying lunch break, effectively avoid the hidden danger of safety due to structural failure, and significantly improve the safety factor.

Description

Technical Field

[0001] This utility model relates to the field of student desks and chairs technology, and in particular to a student lunch break chair. Background Technology

[0002] In campus life, students usually need to take a lunch break in the classroom. Suitable lunch break equipment can effectively improve the quality of rest and ensure afternoon learning efficiency. Chinese utility model patent with announcement number CN221410836U discloses a lunch break chair, which includes a base, a seat cushion fixed on the base, a thigh support slidably connected to the base, and a backrest connected to the base via an adjustment component. The backrest can be adjusted relative to the seat cushion within a preset angle, and has a shape adjustment function to adapt to the rest needs of students.

[0003] However, this existing technology has significant drawbacks: First, the adjustment component, as the main load-bearing structure between the backrest and the base, uses a combination of a first locking part and a second locking part to lock and unlock the angle. This design is complex and lacks structural strength. When students lie down for a nap, the adjustment component is prone to deformation, jamming, or even failure, resulting in poor reliability, low safety, and difficulty in ensuring student safety. Second, most existing nap chairs only focus on support during naps, lacking targeted protection and auxiliary functions for daily classroom use. In particular, they lack posture correction structures, failing to guide and correct students' poor posture. Long-term use may lead to cervical and lumbar spine deformities, making them functionally limited and unable to meet the diverse needs of use in a school setting.

[0004] Therefore, there is an urgent need to design a student lunch break chair with high structural strength, reliable support, and posture correction function to solve the safety hazards and limited functionality of existing technologies. Utility Model Content

[0005] To address the shortcomings in the aforementioned background technology, this utility model proposes a student lunch break seat, which solves the problem of low safety factor caused by poor support structure of existing student lunch break seats. It can improve support stability and safety factor by optimizing structural design, and can also add posture correction function, realizing multi-functional adaptation for lunch break and daily classes.

[0006] The technical solution of this utility model is implemented as follows: A student nap chair includes a base, on which a seat cushion is fixedly mounted. The base is hinged to a backrest support frame, and a backrest is connected to the upper part of the backrest support frame. The lower end of the backrest support frame is hinged to one end of a controllable gas spring, and the other end of the controllable gas spring is hinged to the base. The tilt angle of the backrest can be locked by the controllable gas spring, which can provide stable support. A horizontal support rod is slidably mounted on the base, and a leg support is hinged to the horizontal support rod. A three-point posture correction belt is provided on the backrest.

[0007] Preferably, the backrest support frame includes a pair of horn seats that are hinged to the base respectively. The upper ends of the horn seats are connected to the support rods respectively. A pair of support sleeves are provided on the backrest to accommodate the insertion of the support rods respectively. The lower ends of the horn seats are fixedly connected to both ends of the cross brace respectively. A hinge seat is fixedly provided in the middle of the cross brace. The tail of the controllable gas spring is hinged to the hinge seat.

[0008] Preferably, a support cylinder is fixedly provided on the backrest, and a head support tube is slidably provided at the open end of the support cylinder. The upper end of the head support tube is connected to the head support, and a soft pad is provided on the head support.

[0009] Preferably, the controllable gas spring includes a gas spring body with its tail hinged to a hinged seat. A connecting seat is fixedly provided at the telescopic end of the gas spring body, and the connecting seat is hinged to the base. A gas spring control rod is provided at the telescopic end of the gas spring body. An actuating arm is hinged to the connecting seat. The actuating arm cooperates with the gas spring control rod. The actuating arm is connected to a handle hinged to the base via a pull rope. When the handle is rotated, the pull rope drives the actuating arm to rotate, thereby actuating the gas spring control rod, thus unlocking or locking the telescopic length of the gas spring body.

[0010] Preferably, the base is provided with a central sleeve, a horizontal support rod is slidably disposed at the open end of the central sleeve, a limiting seat is fixedly disposed at the outer end of the horizontal support rod, the middle part of the leg support is hinged to the limiting seat, and a limiting surface is provided between the limiting seat and the leg support to limit the opening range of the leg support.

[0011] Preferably, the leg support has a U-shaped groove in the middle, which is used to avoid the middle sleeve when the leg is folded. The leg support, backrest, and seat cushion all have ventilation grooves. Armrest supports are fixedly installed on both sides of the base, and armrest supports are provided on the armrest supports. A storage frame is provided on the base.

[0012] The beneficial effects of this utility model are: This invention uses a controllable gas spring as the angle adjustment and support structure for the backrest. Compared with the adjustment components with locking parts in the prior art, the controllable gas spring has a stronger load-bearing capacity and higher structural stability, which can provide stable and reliable support for students lying down for lunch break, effectively avoid safety hazards caused by structural failure, and significantly improve the safety factor.

[0013] By installing a three-point posture correction belt on the backrest, it can effectively restrain and guide students' sitting posture in daily class scenarios, help students develop correct sitting posture, protect the health of the cervical and lumbar spine, solve the problem of the single function of existing lunch break chairs, and realize the dual functions of "lunch break support" and "posture correction". It has a rich set of functions and is suitable for the diverse needs of campus use.

[0014] Furthermore, the backrest support frame adopts a combination structure of horn-shaped base and cross brace, which is connected in conjunction with the support rod of the backrest, further enhancing the connection strength and overall stability of the backrest.

[0015] Furthermore, the backrest angle can be adjusted via a handle, pull rope, touch arm, and controllable gas spring control lever, making it simple and easy to operate. Students can quickly adjust to a suitable angle on their own. The leg support can slide, extend, and flip to accommodate the leg support needs of students of different heights, achieving full-support lying down. The telescopic design of the headrest, the soft padding, and the ventilation groove structure in various parts further enhance the comfort during use.

[0016] Furthermore, the leg support unit avoids the central sleeve through a U-shaped groove, and after being folded up, it is stored together with the horizontal support rod in the central sleeve of the base. The overall structure is compact and does not occupy extra space, which meets the needs of classroom space layout. The setting of the storage frame and handrail support unit further enhances the practicality and convenience of the product. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model for use during lunch break; Figure 2 This is a schematic diagram of the normal structure of this utility model; Figure 3 This is a schematic diagram of the installation position structure of the three-point posture correction belt of this utility model; Figure 4This is a schematic diagram of the adjustable gas spring connection structure of this utility model; Figure 5 This is a schematic diagram of the backrest support frame structure of this utility model; Figure 6 This is a schematic diagram of the leg support structure of this utility model; Figure 7 This is a schematic diagram of the connection structure between the handle and the pull rope of this utility model; Figure 8 This is a schematic diagram of the connecting seat structure of this utility model; In the diagram: 1: Base, 11: Middle sleeve, 12: Ventilation groove, 13: Armrest bracket, 14: Armrest support, 15: Storage frame; 2: Seat cushion; 3: Backrest support frame, 31: Horn seat, 32: Support rod, 33: Support sleeve, 34: Horizontal support rod, 35: Hinge seat; 4: Backrest, 41: Support cylinder, 42: Head support tube, 43: Head support, 44: Soft cushion; 5: Controllable gas spring, 51: Gas spring body, 52: Connecting seat, 53: Gas spring control rod, 54: Actuating arm, 55: Pull rope, 56: Handle; 6: Horizontal support rod, 61: Limiting seat, 62: Limiting surface; 7: Leg support, 71-U-shaped groove; 8: Three-point posture correction belt. Detailed Implementation

[0019] 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.

[0020] like Figure 1 , 2 As shown in Figure 3, in Embodiment 1, a student nap chair includes a base 1, a seat cushion 2 fixedly mounted on the base 1, the base 1 being hinged to a backrest support frame 3, a backrest 4 connected to the upper part of the backrest support frame 3, and a controllable gas spring 5 hinged to one end of the lower end of the backrest support frame 3. The other end of the controllable gas spring 5 is hinged to the base 1. The controllable gas spring 5 can lock the tilt angle of the backrest 4 and provide stable support. A horizontal support rod 6 is slidably mounted on the base 1, and a leg support 7 is hinged to the horizontal support rod 6. A three-point posture correction belt 8 is mounted on the backrest 4. In this embodiment, the three-point posture correction belt can restrain the student's sitting posture during normal class use and prevent incorrect sitting posture.

[0021] As a further specific implementation, in this embodiment, such as Figure 4 , 5As shown, the backrest support frame 3 includes a pair of horn-shaped seats 31 that are hinged to the base. The middle of the horn-shaped seats 31 is hinged to the rear end of the base 1 via a hinge shaft. The upper ends of the horn-shaped seats 31 are welded to support rods 32. A pair of support sleeves 33 are provided on the backrest 4. The two support rods 32 are inserted into the support sleeves 33 and fixed by bolts, realizing a detachable connection between the backrest support frame 3 and the backrest 4, which is convenient for subsequent maintenance and replacement. The lower ends of the horn-shaped seats 31 are welded and fixedly connected to both ends of the cross brace 34. A hinge seat 35 is welded and fixedly provided in the middle of the cross brace 34. The tail of the controllable gas spring 5 is hinged to the hinge seat 35 via a pin.

[0022] A support cylinder 41 is fixedly mounted on the backrest 4. A head support tube 42 is slidably mounted on the open end of the support cylinder 41. The support cylinder has a set screw whose end mates with the outer wall of the head support tube to lock the position after the head support tube is adjusted. The upper end of the head support tube 42 is connected to a headrest 43. The headrest 43 is provided with a soft pad. Alternatively, the headrest has a groove, and the upper end of the head support tube is positioned in the groove and connected to the headrest by bolts. Alternatively, the headrest 43 is hinged to the upper end of the head support tube 42, allowing the tilt angle of the headrest 43 to be adjusted according to usage requirements, further improving head support comfort.

[0023] As a further specific implementation, armrest brackets are welded and fixed to both sides of the base 1. The armrest brackets are equipped with armrest support parts, which are made of soft rubber material to improve arm support comfort. In addition, a storage frame 15 is bolted to the base 1. The storage frame 15 is an open frame for placing books, stationery, and other items, making it convenient for students to use.

[0024] Example 2: A student nap chair, based on Example 1, includes a controllable gas spring 5 comprising a gas spring body 51 with its tail hinged to a hinged seat 35. A connecting seat 52 is fixedly provided at the telescopic end of the gas spring body 51, and the connecting seat 52 is hinged to the base 1. In this example, the controllable gas spring can be selected from the controllable gas spring disclosed in Chinese utility model patents CN213176607U or CN207049241U, or other conventionally sized controllable gas springs can be used. This allows for stable support and enables a controllable self-locking effect by controlling the opening and closing of the valve needle via the gas spring control rod or pin.

[0025] Furthermore, such as Figure 4 , 7As shown in Figure 8, the telescopic end of the gas spring body 51 is provided with a gas spring control rod 53, and an actuating arm 54 is hinged on the connecting seat 52. The actuating arm 54 cooperates with the gas spring control rod 53. The actuating arm 54 is connected to the handle 56 hinged on the base 1 through a pull rope 55. When the handle 56 is rotated, it can drive the actuating arm 54 to rotate through the pull rope 55, thereby triggering the gas spring control rod 53, thereby unlocking or locking the telescopic length of the gas spring body 51.

[0026] Example 3: A student nap chair, based on Example 2, has a central sleeve 11 on the base 1. A horizontal support rod 6 is slidably disposed at the open end of the central sleeve 11. In this example, the central sleeve 11 is a hollow steel tube structure, and the horizontal support rod 6 slidably passes through the open end of the central sleeve 11. A limiting seat 61 is welded and fixedly disposed at the outer end of the horizontal support rod 6. The middle part of the leg support 7 is hinged to the limiting seat 61, and a limiting surface 62 is provided between the limiting seat 61 and the leg support 7 to limit the opening range of the leg support 7. When the leg support 7 is flipped outward to a horizontal state, the limiting surface 62 between the two abuts against each other, restricting the leg support 7 from continuing to flip, thus ensuring support stability.

[0027] like Figure 6 As shown, the leg support 7 has a U-shaped groove 71 in the middle. When the leg support 7 is closed, the U-shaped groove 71 can avoid the middle sleeve 11, so that the leg support 7 can be closed in close to the horizontal support rod 6, reducing the storage space.

[0028] Furthermore, the leg support 7, backrest 4, and seat cushion 2 are all equipped with ventilation channels 12. These channels 12 are diagonal through-holes that promote air circulation and prevent stuffiness and sweating. The seat cushion 2 is made of high-density sponge material covered with breathable fabric to enhance seating comfort. The backrest 4 is anchored by rivets to a three-point posture correction belt 8. The three-point posture correction belt 8 is made of breathable webbing material and has Velcro or buckles at the opening end for easy fastening and unfastening. It can restrain students from both sides of the shoulders and waist, and has a good effect on correcting sitting posture.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A student nap chair, characterized in that: Includes a base (1), on which a cushion (2) is fixedly installed. The base (1) is hinged to a backrest support frame (3). A backrest (4) is connected to the upper part of the backrest support frame (3). The lower end of the backrest support frame (3) is hinged to one end of a controllable gas spring (5). The other end of the controllable gas spring (5) is hinged to the base (1). The backrest (4) can be locked by the controllable gas spring (5) and can provide stable support. A horizontal support rod (6) is slidably provided on the base (1). A leg support part (7) is hinged on the horizontal support rod (6). A three-point sitting posture correction belt (8) is provided on the backrest (4).

2. The student nap chair according to claim 1, characterized in that: The backrest support frame (3) includes a pair of horn seats (31) that are hinged to the base respectively. The upper ends of the horn seats (31) are connected to the support rods (32) respectively. The backrest (4) is provided with a pair of support sleeves (33) that allow the support rods (32) to be inserted respectively. The lower ends of the horn seats (31) are fixedly connected to both ends of the cross brace (34) respectively. The cross brace (34) is fixedly provided with a hinge seat (35) in the middle. The tail of the controllable gas spring (5) is hinged to the hinge seat (35).

3. The student nap chair according to claim 2, characterized in that: A support tube (41) is fixedly provided on the backrest (4). A head support tube (42) is slidably provided at the open end of the support tube (41). The upper end of the head support tube (42) is connected to the head support (43). A soft pad is provided on the head support (43).

4. The student nap chair according to claim 3, characterized in that: The controllable gas spring (5) includes a gas spring body (51) whose tail is hinged to a hinge seat (35). The telescopic end of the gas spring body (51) is fixedly provided with a connecting seat (52), which is hinged to the base (1).

5. The student nap chair according to claim 4, characterized in that: The telescopic end of the gas spring body (51) is provided with a gas spring control rod (53), and a trigger arm (54) is hinged on the connecting seat (52). The trigger arm (54) cooperates with the end of the gas spring control rod (53). The trigger arm (54) is connected to the handle (56) hinged on the base (1) through the pull rope (55). When the handle (56) rotates, it can drive the trigger arm (54) to rotate through the pull rope (55) and thus trigger the gas spring control rod (53), thereby unlocking or locking the telescopic length of the gas spring body (51).

6. The student nap chair according to any one of claims 1 to 5, characterized in that: The base (1) is provided with a central sleeve (11), and a horizontal support rod (6) is slidably disposed at the open end of the central sleeve (11). A limiting seat (61) is fixedly disposed at the outer end of the horizontal support rod (6). The middle part of the leg support (7) is hinged to the limiting seat (61), and a limiting surface (62) is provided between the limiting seat (61) and the leg support (7) to limit the opening range of the leg support (7).

7. The student nap chair according to claim 6, characterized in that: The leg support (7) is provided with a U-shaped groove (71) in the middle, which is used to avoid the middle sleeve (11) in the retracted state.

8. The student nap chair according to claim 7, characterized in that: The leg support (7), backrest (4), and seat cushion (2) are all provided with ventilation grooves (12).

9. The student nap chair according to claim 8, characterized in that: The base (1) is fixedly provided with handrail brackets on both sides, and the handrail brackets are provided with handrail support parts.

10. The student nap chair according to claim 9, characterized in that: A storage frame (15) is provided on the base (1).

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