Desk and chair with foot support telescopic structure

Abstract

The utility model discloses a desk and chair with a foot support telescopic structure, which comprises a desk main body and a chair main body, the two ends of the bottom of the chair main body are fixedly connected with U-shaped fixing frames, the surface of each U-shaped fixing frame is provided with a pin groove, a U-shaped adjusting frame is movably connected between the inner cavities of the two U-shaped fixing frames, and the foot support telescopic structure is arranged between the two U-shaped adjusting frames. And containing holes are formed in the right ends of the two sides of the U-shaped adjusting frame. Through the arrangement of the U-shaped fixing frame, the U-shaped adjusting frame, the leg supporting plate and the foot supporting plate, legs and feet of a student can be well supported on the left side of the seat body, limp and numb discomfort caused by bending of the legs in the noon break process of the student is effectively reduced, the quality of the noon break of the student is improved, meanwhile, through the arrangement of the pin block and the pin groove, the noon break of the student is facilitated, and the practicability is high. The U-shaped adjusting frame and the U-shaped fixing frame can be limited, and the situation that the U-shaped adjusting frame displaces along the surface of the U-shaped fixing frame due to the fact that the leg supporting plate and the foot supporting plate are stressed is avoided.

Description

Technical Field

[0001] This utility model relates to the field of desks and chairs technology, specifically a desk and chair with a telescopic footrest structure. Background Technology

[0002] School desks and chairs are furniture specifically designed for students' classroom learning. They are a type of desk and chair, also known as student desks and chairs or school desks and chairs. Their core function is to provide students with ergonomic learning support, while also meeting multiple standards such as safety and environmental protection.

[0003] However, traditional desks and chairs lack support for students' feet. During lunch breaks, students' feet often hang down or rest on the ground without proper support, leading to poor blood circulation and fatigue, which negatively impacts the quality of their lunch break. Utility Model Content

[0004] The purpose of this utility model is to provide a desk and chair with a telescopic footrest structure, which can support the legs and feet of students during rest, reduce discomfort caused by leg bending and pressure during lunch break, and improve the quality of students' lunch break.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a desk and chair with a telescopic footrest structure, comprising a desk body and a seat body. Both ends of the bottom of the seat body are fixedly connected to U-shaped fixing frames. The surface of each U-shaped fixing frame has a pin groove. A U-shaped adjusting frame is movably connected between the inner cavities of the two U-shaped fixing frames. Receiving holes are provided at the right ends of both sides of the U-shaped adjusting frame. A pin block is movably connected between the surface of the receiving hole and the left end of the pin groove. A pressure rod is fixedly connected to the side of the two pin blocks that are far apart from each other. A pressing plate is fixedly connected to the side of the two pressure rods that are far apart from each other. A support spring is fixedly connected between the surface of the pin block and the surface of the receiving hole. A second rotating shaft is movably connected to the right end of the U-shaped adjusting frame and to the left of the receiving hole via a bearing. A leg support plate is fixedly connected to the middle end of the second rotating shaft. A footrest plate is placed at the left end of the top of the U-shaped adjusting frame.

[0006] As a preferred embodiment, a support block is fixedly connected to the left end of the bottom of the U-shaped adjustment frame. There are two support blocks, and a first rotating shaft is movably connected between the middle ends of the two support blocks via a bearing. The middle end of the first rotating shaft is fixedly connected to the right end of the bottom of the footrest.

[0007] As a preferred embodiment, a fixing frame is fixedly connected to the middle of the bottom of the U-shaped adjustment frame, and L-shaped support rods are fixedly connected to both ends of the bottom of the fixing frame. A stabilizing support plate is fixedly connected to the middle of the bottom of the leg support plate.

[0008] As a preferred embodiment, the number of stabilizing support plates is three, and the bottom of the stabilizing support plates is placed on top of the fixing frame.

[0009] As a preferred embodiment, the top left end of the footrest plate has two grooves.

[0010] As a preferred embodiment, a support frame is fixedly connected to the bottom of the U-shaped fixed frame, armrests are fixedly connected to both ends of the seat body, table legs are fixedly connected to both ends of the bottom of the desk body, and a crossbar is fixedly connected between the lower ends of the two table legs.

[0011] As a preferred embodiment, a receiving groove is provided at the middle of the bottom of the seat body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the design of a U-shaped fixed frame, a U-shaped adjustable frame, a leg rest, and a foot rest, provides excellent support for students' legs and feet on the left side of the seat body. This effectively reduces the discomfort caused by leg bending during lunch break, improving the quality of students' rest. Simultaneously, the pins and slots limit the movement between the U-shaped adjustable frame and the U-shaped fixed frame, preventing displacement of the U-shaped adjustable frame along the surface of the U-shaped fixed frame due to force. Furthermore, the coordinated action of the leg rest, the second rotating shaft, the U-shaped adjustable frame, the foot rest, the pressing plate, the pressure rod, the pins, the slots, the receiving holes, the support spring, the U-shaped fixed frame, and the seat body achieves the effect of retracting and storing the U-shaped adjustable frame, foot rest, and leg rest. The overall operation is convenient and quick, greatly facilitating daily use for students.

[0014] 2. This utility model, through the setting of the support block and the first rotating shaft, can support the footrest and the U-shaped adjustment frame, and facilitate the rotation of the footrest during subsequent storage. Through the setting of the fixing frame and the L-shaped support rod, the groove on the footrest can contact the L-shaped support rod during subsequent storage, thereby supporting the footrest. Through the setting of the stabilizing support plate and the fixing frame, the bottom of the leg rest can be supported during use, preventing the leg rest from tilting. Through the setting of the support frame, the bottom of the chair body is supported. Through the setting of the table legs, the bottom of the desk body is supported. Through the setting of the receiving slot, the leg rest can be placed in the storage during storage. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a schematic diagram of the main body of the seat of this utility model from below;

[0017] Figure 3 This is a schematic diagram of the U-shaped adjustment frame structure of this utility model;

[0018] Figure 4 This is a top view of a partial cross-sectional structure of the U-shaped fixing frame of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the footrest after it has been stored.

[0020] In the diagram: 1. Desk body; 2. Crossbar; 3. Desk legs; 4. Seat body; 5. U-shaped fixing frame; 6. Leg support plate; 7. Foot support plate; 8. Armrest; 9. Support frame; 10. Stabilizing support plate; 11. First pivot; 12. Support block; 13. U-shaped adjustment frame; 14. L-shaped support rod; 15. Fixing frame; 16. Second pivot; 17. Receiving groove; 18. Groove; 19. Pressing plate; 20. Pin groove; 21. Pressure rod; 22. Pin block; 23. Receiving hole; 24. Support spring. Detailed Implementation

[0021] 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.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] Example 1:

[0024] Please see Figures 1-5As shown, this utility model provides a desk and chair with a telescopic footrest structure, including a desk body 1 and a seat body 4. Both ends of the bottom of the seat body 4 are fixedly connected to U-shaped fixing frames 5. The surface of the U-shaped fixing frames 5 is provided with pin grooves 20. A U-shaped adjusting frame 13 is movably connected between the inner cavities of the two U-shaped fixing frames 5. The right ends of both sides of the U-shaped adjusting frame 13 are provided with receiving holes 23. A pin block 22 is movably connected between the surface of the receiving hole 23 and the left end of the pin groove 20. A pressure rod 21 is fixedly connected to the side of the two pin blocks 22 that is far apart from each other. A pressing plate 19 is fixedly connected to the side of the two pressure rods 21 that is far apart from each other. A support spring 24 is fixedly connected between the surface of the pin block 22 and the surface of the receiving hole 23. A second rotating shaft 16 is movably connected to the right end of the U-shaped adjusting frame 13 and to the left of the receiving hole 23 through a bearing. A leg support plate 6 is fixedly connected to the middle end of the second rotating shaft 16. A footrest plate 7 is placed on the left end of the top of the U-shaped adjusting frame 13.

[0025] In this technical solution, the U-shaped fixing frame 5, U-shaped adjusting frame 13, leg support plate 6, and foot support plate 7 provide good support for students' legs and feet on the left side of the seat body 4, effectively reducing the discomfort caused by leg bending during lunch break and improving the quality of students' lunch break. At the same time, the pin block 20 and pin groove 22 limit the movement between the U-shaped adjusting frame 13 and the U-shaped fixing frame 5, preventing the U-shaped adjusting frame 13 from shifting along the surface of the U-shaped fixing frame 5 due to force on the leg support plate 6 and foot support plate 7. Furthermore, through the coordinated action of the leg support plate 6, the second rotating shaft 16, the U-shaped adjusting frame 13, the foot support plate 7, the pressing plate 19, the pressing rod 21, the pin block 22, the pin groove 20, the receiving hole 23, the support spring 24, the U-shaped fixing frame 5, and the seat body 4, the U-shaped adjusting frame 13, the foot support plate 6, and the leg support plate 7 can be extended and retracted. The overall operation is convenient and quick, bringing great convenience to students' daily use.

[0026] Example 2:

[0027] Based on Embodiment 1, this utility model is as follows: Figures 1-5As shown, a support block 12 is fixedly connected to the left end of the bottom of the U-shaped adjustment frame 13. There are two support blocks 12. The middle ends of the two support blocks 12 are movably connected to a first rotating shaft 11 through a bearing. The middle end of the first rotating shaft 11 is fixedly connected to the right end of the bottom of the footrest 7. A fixed frame 15 is fixedly connected to the middle end of the bottom of the U-shaped adjustment frame 13. Both ends of the bottom of the fixed frame 15 are fixedly connected to L-shaped support rods 14. A stabilizing support plate 10 is fixedly connected to the middle end of the bottom of the leg rest 6. There are three stabilizing support plates 10. The bottom of the stabilizing support plate 10 is placed on the top of the fixed frame 15. A groove 18 is provided on the left end of the top of the footrest 7. There are two grooves 18. A support frame 9 is fixedly connected to the bottom of the U-shaped fixed frame 5. Armrests 8 are fixedly connected to both ends of the seat body 4. Table legs 3 are fixedly connected to both ends of the bottom of the desk body 1. A crossbar 2 is fixedly connected between the lower ends of the two table legs 3. A receiving groove 17 is provided in the middle end of the bottom of the seat body 4.

[0028] In this technical solution, the support block 12 and the first rotating shaft 11 provide support between the footrest 7 and the U-shaped adjustment frame 13, and facilitate the rotation of the footrest 7 during subsequent storage. The fixing frame 15 and the L-shaped support rod 14 allow the groove 18 on the footrest 7 to contact the L-shaped support rod 14 during subsequent storage, thus supporting the footrest 7. The stabilizing support plate 10 and the fixing frame 15 provide support for the bottom of the leg rest 6 during use, preventing the leg rest 6 from tilting. The support frame 9 provides support for the bottom of the seat body 4. The table legs 3 provide support for the bottom of the desk body 1. The receiving slot 17 allows the leg rest 6 to be placed in the storage compartment.

[0029] The working principle of this utility model is as follows: Through the arrangement of the U-shaped fixing frame 5, the U-shaped adjusting bracket 13, the leg rest 6, and the foot rest 7, good support can be provided for the student's legs and feet on the left side of the seat body 4, effectively reducing the discomfort caused by leg bending during lunch break and improving the quality of the student's lunch break. Simultaneously, the pin block 20 and pin groove 22 can limit the movement between the U-shaped adjusting bracket 13 and the U-shaped fixing frame 5, preventing the leg rest 6 and foot rest 7 from shifting due to force. The U-shaped adjusting frame 13 shifts along the surface of the U-shaped fixed frame 5. When the students need to store the footrest 7 and leg rest 6 after their lunch break, the second rotating shaft 16 rotates along the bearing on the U-shaped adjusting frame 13 by lifting the leg rest 6 upwards. At the same time, the footrest 7 is pulled and rotated 180 degrees, allowing it to detach from the surface of the U-shaped adjusting frame 13 until it can be placed under the leg rest 6. The leg rest 6 is then released to allow the leg rest to be stored properly. After the seat can be rotated and reset, pressing the pressing discs 19 and the pressure rods 21 on both sides can push the pin 22 to move, causing the pin 22 to disengage from the surface of the pin groove 20. At the same time, the pin 22 can compress the support spring 24 inside the receiving hole 23 (it should be noted that the diameter of the pressure rod 21 is smaller than the distance at the narrowest point of the pin groove 20). Then, the person can push the U-shaped adjustment frame 13 to move along the surface of the U-shaped fixed frame 5 until the U-shaped adjustment frame 13, the leg rest 6, and the foot rest 7 are under the seat body 4 under the movement. Then, by stopping the pressing of the pressing discs 19 and the pressure rods 21, and under the tension of the support springs 24, the pin 22 can be inserted into different positions in the pin groove 20, thereby limiting the U-shaped adjustment frame 13 and the U-shaped fixed frame 5 again, thus achieving the effect of retracting and storing the U-shaped adjustment frame 13, the foot rest 6, and the leg rest 7. The overall operation is convenient and quick, bringing great convenience to students' daily use.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A desk and chair with a telescopic footrest structure, comprising a desk body (1) and a chair body (4), characterized in that: Both ends of the bottom of the seat body (4) are fixedly connected to U-shaped fixing frames (5). The surface of the U-shaped fixing frames (5) is provided with pin grooves (20). A U-shaped adjusting bracket (13) is movably connected between the inner cavities of the two U-shaped fixing frames (5). The right ends of both sides of the U-shaped adjusting bracket (13) are provided with receiving holes (23). A pin block (22) is movably connected between the surface of the receiving hole (23) and the left end of the pin groove (20). The two pin blocks (22) are fixedly connected to each other on the side away from each other. The pressure rod (21) is fixedly connected to the side of the two pressure rods (21) that are far apart from each other. A support spring (24) is fixedly connected between the surface of the pin block (22) and the surface of the receiving hole (23). The right end of the U-shaped adjustment frame (13) and the left side of the receiving hole (23) is movably connected to the second rotating shaft (16) through a bearing. The middle end of the second rotating shaft (16) is fixedly connected to the leg support plate (6). The left end of the top of the U-shaped adjustment frame (13) is placed with a foot support plate (7).

2. The desk and chair with a telescopic footrest structure according to claim 1, characterized in that: A support block (12) is fixedly connected to the left end of the bottom of the U-shaped adjustment frame (13). There are two support blocks (12). A first rotating shaft (11) is movably connected between the middle ends of the two support blocks (12) through a bearing. The middle end of the first rotating shaft (11) is fixedly connected to the right end of the bottom of the footrest plate (7).

3. A desk and chair with a telescopic footrest structure according to claim 1, characterized in that: A fixed frame (15) is fixedly connected to the middle of the bottom of the U-shaped adjustment frame (13), and L-shaped support rods (14) are fixedly connected to both ends of the bottom of the fixed frame (15). A stabilizing support plate (10) is fixedly connected to the middle of the bottom of the leg support plate (6).

4. A desk and chair with a telescopic footrest structure according to claim 3, characterized in that: The number of the stabilizing support plates (10) is three, and the bottom of the stabilizing support plates (10) is placed on the top of the fixing frame (15).

5. A desk and chair with a telescopic footrest structure according to claim 1, characterized in that: The footrest plate (7) has two grooves (18) on the left side of its top.

6. A desk and chair with a telescopic footrest structure according to claim 1, characterized in that: The bottom of the U-shaped fixed frame (5) is fixedly connected to a support frame (9), both ends of the seat body (4) are fixedly connected to armrests (8), both ends of the bottom of the desk body (1) are fixedly connected to table legs (3), and a crossbar (2) is fixedly connected between the lower ends of the two table legs (3).

7. A desk and chair with a telescopic footrest structure according to claim 1, characterized in that: The seat body (4) has a receiving groove (17) at the middle of its bottom.

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