Multi-functional desk and chair

Abstract

The utility model relates to the technical field of desks and chairs, and particularly discloses a sit-stand-lie multifunctional desk and chair, which comprises a desk and a seat, the seat is set to be adjustable in backrest angle, a support frame one is fixedly installed on the bottom surface of the desk, a support frame two is fixedly installed on the bottom of the seat, a knob is rotationally arranged on the side edge of the desk, symmetrically opposite slide ways are formed in the bottom surface of the desk, a bidirectional screw rod is rotationally arranged on the bottom surface of the desk, the knob rotating shaft end and the screw rod rotating shaft end are fixedly installed, two groups of slide ways are slidably provided with movable plates, the two groups of movable plates are respectively threadedly connected with the bidirectional screw rod, movable columns are hingedly installed on the end portions of the movable plates, a supporting plate is arranged directly below the desk, the bottom ends of the movable columns are respectively hingedly arranged on the supporting plate, a limiting frame is fixedly installed on the side edge of the supporting plate, the sit-stand-lie multifunctional desk and chair can adjust the leg bearing height, effectively improve the lying posture comfort, and has the advantages of simple structure, convenient operation and high practicability.

Description

Technical Field

[0001] This utility model belongs to the field of desks and chairs technology, and in particular relates to a multifunctional desk and chair for sitting, standing and reclining. Background Technology

[0002] School desks and chairs are sets of desks and chairs specifically designed for students to study in classrooms. They usually consist of a desk (providing a flat surface for writing and placing books) and a chair (for students to sit). They are basic infrastructure in educational venues such as schools and are mainly used for daily activities such as classes, writing, and reading to meet standardized teaching needs.

[0003] While existing sitting, standing, and reclining desks and chairs can accommodate different postures to some extent, in actual use, there is a lack of effective adjustment of the leg support height when students switch from sitting to reclining. This results in a lack of proper leg support in the reclining position, making it difficult to achieve a comfortable lying experience. Prolonged use can also easily cause discomfort and fatigue in the legs, waist, and other parts of the body. Therefore, this needs to be improved. To this end, a multi-functional sitting, standing, and reclining desk and chair is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a multifunctional desk and chair for sitting, standing, and reclining, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multifunctional desk and chair for sitting, standing, and reclining, comprising a desk and a seat, wherein the seat is configured with an adjustable backrest angle, a first support frame is fixedly installed on the bottom surface of the desk, a second support frame is fixedly installed on the bottom of the seat, a knob is rotatably provided on the side of the desk, symmetrical slide rails are provided on the bottom surface of the desk, a two-way lead screw is rotatably provided on the bottom surface of the desk, the knob shaft end is fixedly installed with the lead screw shaft end, movable plates are slidably provided on both sets of slide rails, the two sets of movable plates are respectively threadedly connected to the two-way lead screw, movable columns are hingedly installed at the ends of the movable plates, a support plate is provided directly below the desk, the bottom ends of the movable columns are respectively hinged to the support plate, a limit frame is fixedly installed on the side of the support plate, and the limit frame is slidably provided on the first support frame.

[0006] As a further description of the above solution: by setting up a desk, chair, support frame one, support frame two, knob, slide, two-way screw, movable plate, movable column, support plate, and limit frame to work together, the leg support height can be adjusted, effectively improving the comfort of lying down. The structure is simple, easy to operate, and highly practical.

[0007] Preferably, the bottom of the first support frame is provided with a symmetrical socket, and the bottom of the second support frame is provided with a symmetrical insert plate, the size of which is adapted to the size of the socket.

[0008] As a further description of the above solution: by setting up support frame one, support frame two, socket, and the cooperation between the socket plates, support frame one and support frame two can be easily connected, improving the integration of the desk and chair, and thus improving the safety of students' lying posture.

[0009] Preferably, a rubber frame is provided inside the socket, and a damping mechanism is provided between the insert plate and the rubber frame.

[0010] As a further description of the above solution: a rubber frame is provided inside the socket, and damping is provided between the insert plate and the rubber frame, which can improve the stability after the connection of support frame one and support frame two, and further improve the safety of students' lying posture.

[0011] Preferably, the top surface of the tray is covered with a pad, and the pad is made of elastic sponge material.

[0012] As a further description of the above solution: the top surface of the tray is covered with a pad made of elastic sponge material, which can ensure the comfort of students' legs when bearing weight.

[0013] Preferably, the knob fits against the side of the desk.

[0014] As a further description of the above solution: the knob fits against the side of the desk, which can effectively reduce the knob from turning easily due to accidental force and ensure the stability of the tray.

[0015] In summary, compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, through the coordinated operation of a desk, chair, support frame one, support frame two, knob, slide, two-way screw, movable plate, movable column, support plate, and limiting frame, can adjust the leg support height, effectively improving the comfort of lying down. It has a simple structure, is easy to operate, and is highly practical.

[0017] 2. In this utility model, by setting up support frame one, support frame two, and insertion port, and the cooperation between the insertion plate, support frame one and support frame two can be easily connected, improving the integration of the desk and chair, and thus improving the safety of students' lying posture. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a structural diagram of the desk and support frame of this utility model;

[0020] Figure 3 This is a side view of the desk and support frame of this utility model.

[0021] Figure 4This is a bottom view of the desk and tray of this utility model.

[0022] Figure 5 This is a structural diagram of the support frame and the support plate of this utility model.

[0023] Legend:

[0024] 1. Desk; 2. Seat; 3. Support frame one; 4. Support frame two; 5. Knob; 6. Slide rail; 7. Two-way lead screw; 8. Movable plate; 9. Movable column; 10. Support plate; 11. Limiting frame; 12. Socket; 13. Insert plate. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This utility model provides a technical solution:

[0027] A multifunctional desk and chair for sitting, standing, and reclining includes a desk 1 and a seat 2. The seat 2 has an adjustable backrest angle. A first support frame 3 is fixedly installed on the bottom surface of the desk 1, and a second support frame 4 is fixedly installed on the bottom of the seat 2. A knob 5 is rotatably installed on the side of the desk 1. Symmetrical slides 6 are provided on the bottom surface of the desk 1. A two-way lead screw 7 is rotatably installed on the bottom surface of the desk 1. The rotating shaft end of the knob 5 is fixedly installed to the rotating shaft end of the lead screw. Movable plates 8 are slidably installed on both sets of slides 6. The two sets of movable plates 8 are threadedly connected to the two-way lead screw 7. Movable columns 9 are hinged to the ends of the movable plates 8. A support plate 10 is provided directly below the desk 1. The bottom ends of the movable columns 9 are hinged to the support plate 10. A limit frame 11 is fixedly installed on the side of the support plate 10. The limit frame 11 is slidably installed on the first support frame 3.

[0028] When the multi-functional desk and chair 1 is in use, the first support frame 3 is used to support the desk 1, the second support frame 4 is used to support the desk and chair, and the seat 2 is set to have an adjustable backrest angle, which can be switched to a reclining position. When reclining, the support plate 10 can support the student's legs.

[0029] When adjusting the load-bearing height of the tray 10, the operator turns the knob 5 on the side of the desk 1. The rotation of the knob 5 drives the double-acting screw 7 to rotate. Since the two sets of movable plates 8 are respectively threaded to the double-acting screw 7 and are slidably set on the slide rail 6, when the double-acting screw 7 rotates, the two sets of movable plates 8 will slide along the slide rail 6 to move closer or further away from each other. The movable column 9 hinged at the end of the movable plate 8 changes its tilt angle as the movable plate 8 slides, thereby pushing or pulling the tray 10 to rise and fall vertically. The limit frame 11 constrains the vertical rising and falling process of the tray 10, thereby realizing the adjustment of the load-bearing height of the tray 10.

[0030] This multi-functional desk and chair, which allows for adjustable leg support height, effectively improves comfort when lying down. It features a simple structure, easy operation, and strong practicality.

[0031] The bottom of the first support frame 3 is provided with a symmetrical socket 12, and the bottom of the second support frame 4 is provided with a symmetrical insert plate 13, the size of which is adapted to the size of the socket 12.

[0032] When it is necessary to improve the integration of desk 1 and chair 2, align the symmetrical insert plate 13 at the bottom of support frame 2 4 with the socket 12 at the bottom of support frame 1 3, and then insert the insert plate 13 into the socket 12. Since the size of the insert plate 13 is compatible with the size of the socket 12, support frame 1 3 and support frame 2 4 can be easily connected, thereby making the connection between desk 1 and chair 2 tighter. When the student is in a lying position, the integrated structure can improve the safety of the lying position and effectively reduce the danger caused by the relative swaying of desk 1 and chair 2.

[0033] A rubber frame is provided inside the socket 12, and a damping is provided between the insert plate 13 and the rubber frame;

[0034] When the insert plate 13 is inserted into the socket 12 of the support frame 3, a plastic frame is provided inside the socket 12, and a damping is provided between the insert plate 13 and the plastic frame. When the insert plate 13 is inserted, it is in close contact with the plastic frame. The damping characteristics prevent the insert plate 13 from sliding easily inside the plastic frame. Even if the student moves while lying down, the support frame 3 and the support frame 4 can still maintain a relatively stable connection, which further improves the safety of the student's lying position.

[0035] A pad is laid on the top surface of the tray 10, and the pad is made of elastic sponge material;

[0036] When the student is lying down, his / her legs are placed on the support board 10. Since the top surface of the support board 10 is covered with an elastic sponge pad, the pad can elastically deform according to the shape and pressure of the legs, playing a role in cushioning and support, dispersing the pressure on the legs, and avoiding discomfort caused by direct contact between the legs and the hard support board 10.

[0037] Knob 5 fits snugly against the side of desk 1;

[0038] The knob 5 fits against the side of the desk 1, so that the knob 5 will not easily rotate due to accidental forces such as external collisions or scratches, ensuring that the support plate 10 maintains a stable height when supporting the student's legs.

[0039] Working principle:

[0040] When the multi-functional desk and chair 1 is in use, the first support frame 3 is used to support the desk 1, the second support frame 4 is used to support the desk and chair, and the seat 2 is set to have an adjustable backrest angle, which can be switched to a reclining position. When reclining, the support plate 10 can support the student's legs.

[0041] When adjusting the load-bearing height of the tray 10, the operator turns the knob 5 on the side of the desk 1. The rotation of the knob 5 drives the double-acting screw 7 to rotate. Since the two sets of movable plates 8 are respectively threaded to the double-acting screw 7 and are slidably set on the slide rail 6, when the double-acting screw 7 rotates, the two sets of movable plates 8 will slide along the slide rail 6 to move closer or further away from each other. The movable column 9 hinged at the end of the movable plate 8 changes its tilt angle as the movable plate 8 slides, thereby pushing or pulling the tray 10 to rise and fall vertically. The limit frame 11 constrains the vertical rising and falling process of the tray 10, thereby realizing the adjustment of the load-bearing height of the tray 10.

[0042] This multi-functional desk and chair, which allows for adjustable leg support height, effectively improves comfort while lying down. It features a simple structure, easy operation, and strong practicality.

[0043] in,

[0044] When it is necessary to improve the integration of desk 1 and chair 2, align the symmetrical insert plate 13 at the bottom of support frame 2 4 with the socket 12 at the bottom of support frame 1 3, and then insert the insert plate 13 into the socket 12. Since the size of the insert plate 13 is compatible with the size of the socket 12, support frame 1 3 and support frame 2 4 can be easily connected, thereby making the connection between desk 1 and chair 2 tighter. When the student is in a lying position, the integrated structure can improve the safety of the lying position and effectively reduce the danger caused by the relative swaying of desk 1 and chair 2.

[0045] When the insert plate 13 is inserted into the socket 12 of the support frame 1 3, a rubber frame is provided inside the socket 12, and a damping is provided between the insert plate 13 and the rubber frame. When the insert plate 13 is inserted, it is in close contact with the rubber frame. The damping characteristics make the insert plate 13 not slide easily inside the rubber frame. Even if the student moves while lying down, the support frame 1 3 and the support frame 2 4 can still maintain a relatively stable connection, which further improves the safety of the student's lying position.

[0046] When the student is lying down, his / her legs are placed on the support board 10. Since the top surface of the support board 10 is covered with an elastic sponge pad, the pad can be elastically deformed according to the shape and pressure of the legs, which plays a role in cushioning and support, dispersing the pressure on the legs, and avoiding discomfort caused by direct contact between the legs and the hard support board 10.

[0047] The knob 5 fits against the side of the desk 1, so that the knob 5 will not easily rotate due to accidental forces such as external collisions or scratches, ensuring that the support plate 10 maintains a stable height when supporting the student's legs.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-functional desk (1) and chair for sitting, standing, and reclining, comprising a desk (1) and a chair (2), characterized in that, The seat (2) is configured with an adjustable backrest angle. A support frame (3) is fixedly installed on the bottom surface of the desk (1). A support frame (4) is fixedly installed on the bottom of the seat (2). A knob (5) is rotatably installed on the side of the desk (1). A symmetrical slide rail (6) is provided on the bottom surface of the desk (1). A two-way lead screw (7) is rotatably installed on the bottom surface of the desk (1). The rotating shaft end of the knob (5) is fixedly installed with the rotating shaft end of the lead screw. The two sets of slide rails (6) Each of the two sets of movable plates (8) is slidably provided on the desk (1). The movable plates (8) are respectively threadedly connected to the two-way screws (7). Movable columns (9) are hinged to the ends of the movable plates (8). A support plate (10) is provided directly below the desk (1). The bottom ends of the movable columns (9) are respectively hinged to the support plate (10). A limit frame (11) is fixedly installed on the side of the support plate (10). The limit frame (11) is slidably provided on the support frame (3).

2. The multi-functional desk and chair for sitting, standing, and reclining as described in claim 1, characterized in that, The bottom of the first support frame (3) is provided with a symmetrical socket (12), and the bottom of the second support frame (4) is provided with a symmetrical insert plate (13), the size of the insert plate (13) being adapted to the size of the socket (12).

3. The multi-functional desk and chair for sitting, standing, and reclining as described in claim 2, characterized in that, A rubber frame is provided inside the socket (12), and a damping is provided between the insert plate (13) and the rubber frame.

4. The multi-functional desk and chair for sitting, standing, and reclining as described in claim 1, characterized in that, The top surface of the tray (10) is covered with a pad, which is made of elastic sponge material.

5. A multi-functional desk and chair for sitting, standing, and reclining as described in claim 1, characterized in that, The knob (5) fits against the side of the desk (1).

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