Desk and chair for terrace classroom

Abstract

The utility model discloses a desk and chair for a terrace classroom, which comprises a standing leg which is fixedly arranged on the side surface of a back plate; a limiting groove is formed in the top of the back face of the back plate, the inner wall of the limiting groove is attached to the table top plate and the tail end of the connecting corner brace, and the connecting corner brace is fixedly installed at one end of the bottom face of the table top plate; a positioning hole is formed in the end, attached to the limiting groove, of the connecting corner brace, a locking bolt is installed in the positioning hole in a penetrating mode, a locking nut is installed at one end of the locking bolt, the other end of the locking bolt is attached to the inner wall of the rail groove, and the rail groove is formed in the inner wall of the limiting groove. According to the desk and chair for the terrace classroom, the novel structural design is adopted, the stability of the chair part is greatly improved, stable supporting and rotary resetting of the chair are guaranteed, the height of the deck plate can be adjusted through the adjusting mechanism, the desk and chair is suitable for terrace classrooms of different specifications, meanwhile, adjusting operation is convenient, and the desk and chair are stable and not prone to loosening during use.

Description

Technical Field

[0001] The utility model relates to the technical field of desks and chairs, in particular to a desk and chair for a stepped classroom. Background Art

[0002] Lecture halls are commonly found in universities and can also be seen in some primary and secondary schools. This type of classroom is large in area and can accommodate a large number of people, but its biggest feature is that its floor is gradually raised in a stepped shape, and desks and chairs specially designed for lecture halls are installed on the gradually rising floor.

[0003] The existing desks and chairs for stepped classrooms have a simple structural design. The seat part is mostly a multi-stage design, which makes the structure easy to shake, resulting in insufficient stability and inability to work stably for a long time. The table panel part is mostly fixed to the reserved installation position on the table frame by bolts, and the table frame is also mostly fixed to the ground by screws, so it cannot adapt to stepped floors of different heights. A small number of table panels have adjustable installation heights, but the adjustment structure is not stable enough, easy to shake, and the adjustment operation is also relatively complicated. Therefore, it is necessary to design a desk and chair for stepped classrooms to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a desk and chair for a stepped classroom to solve at least one technical problem existing in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A desk and chair for a stepped classroom, comprising:

[0007] A standing foot, the standing foot is fixedly mounted on the side of the back plate, a seat bracket is fixed to the bottom of the front of the back plate, a chair seat bracket is mounted on the seat bracket, and the chair seat bracket is connected and fixed to the bottom surface of the chair seat plate;

[0008] A back panel, wherein a limiting groove is provided on the top of the back of the back panel, the inner wall of the limiting groove is fitted with the table panel and the end of the connecting angle code, the connecting angle code is fixedly installed at one end of the bottom surface of the table panel, and a book net is fixedly installed at the bottom of the table panel inside the connecting angle code;

[0009] A connecting angle code is provided with a positioning hole at the end where the connecting angle code and the limiting groove are fitted, a locking bolt is installed through the positioning hole, a locking nut is installed at one end of the locking bolt, and the other end of the locking bolt is fitted with the inner wall of the track groove, and the track groove is provided on the inner wall of the limiting groove.

[0010] Preferably, an upper back bar is mounted on the top of the back plate, and the material of the upper back bar is high-strength aluminum alloy.

[0011] Preferably, the chair seat support is rotatably connected to the seat bracket, and a gravity restoring mechanism is provided in the seat bracket.

[0012] Preferably, the overlapping area of ​​the seat support and the seat plate is greater than 1 / 3 of the area of ​​the seat plate, and the seat plate is symmetrically distributed about the center of the back plate.

[0013] Preferably, the connecting angle codes are symmetrically distributed about the table top, and the table top and the connecting angle codes are tightly fitted to the inner wall of the limiting groove.

[0014] Preferably, positioning holes are symmetrically provided at the fitting ends of the connecting angle code and the limiting groove, and the positioning holes are tightly fitted with the locking bolts.

[0015] Preferably, the locking bolt is slidably connected to the track groove, and the width of the track groove opening is smaller than the diameter of the end of the locking bolt located in the track groove.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The new structural design greatly improves the stability of the seat, ensuring stable support and rotation reset of the seat. The height of the table panel can be adjusted through the adjustment mechanism to adapt to different sizes of lecture halls. At the same time, the adjustment operation is convenient and stable and not easy to loosen during use.

[0018] 1. The utility model uses a high-quality aluminum alloy integral die-casting foot to stably install and limit the back panel, so that the back panel provides a stable installation foundation for the seat bracket, the seat support and the seat board, and the seat bracket provides a stable support for the seat support and the seat board, ensuring that the seat support and the seat board can be stably supported horizontally and rotated to stand upright for storage;

[0019] 2. The utility model can conveniently adjust the working height of the table top by connecting the angle code with the locking bolt to slide linearly along the track groove, which is suitable for stepped classrooms of different specifications. The locking nut can squeeze the connecting angle code to be stably fixed in the limit groove, and the table top is also stably fitted with the limit groove. It is not only convenient to adjust the operation, but also has high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a side structural schematic diagram of the utility model.

[0021] Figure 2 This is a front view structural schematic diagram of the utility model.

[0022] Figure 3 It is a rear view structural schematic diagram of the limit groove, table panel and connecting angle bracket of the utility model.

[0023] Figure 4It is a schematic diagram of the side cross-sectional structure of the limit groove and the track groove of the utility model.

[0024] In the figure: 1. Standing foot; 2. Backboard; 3. Upper back bar; 4. Seat bracket; 5. Seat support; 6. Seat board; 7. Limiting groove; 8. Table top; 9. Connecting angle code; 10. Book net; 11. Positioning hole; 12. Locking bolt; 13. Locking nut; 14. Track groove. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-4 , an embodiment provided by the utility model:

[0030] A desk and chair for a stepped classroom, comprising:

[0031] The standing foot 1 is fixedly mounted on the side of the back plate 2, and an upper back strip 3 is mounted on the top of the back plate 2. The material of the upper back strip 3 is high-strength aluminum alloy. The structural design of the upper back strip 3 is sturdy, durable, beautiful and fashionable. A seat bracket 4 is fixed to the bottom of the front of the back plate 2, and a seat support 5 is mounted on the seat bracket 4. The seat support 5 is rotatably connected to the seat bracket 4, and a gravity return mechanism is arranged in the seat bracket 4. The above structural design enables the seat support 5 to be stably rotated with the seat plate 6 to be put down for use and erected for storage, and the seat support 5 is connected and fixed to the bottom surface of the seat plate 6;

[0032] The back panel 2 has a limit groove 7 on the top of the back of the back panel 2. The inner wall of the limit groove 7 is fitted with the table panel 8 and the end of the connecting angle code 9. The connecting angle code 9 is fixedly installed at one end of the bottom surface of the table panel 8. A book net 10 is fixedly installed at the bottom of the table panel 8 inside the connecting angle code 9.

[0033] A connecting angle code 9 is provided with a positioning hole 11 at the end where the connecting angle code 9 and the limiting groove 7 are fitted, a locking bolt 12 is installed through the positioning hole 11, a locking nut 13 is installed at one end of the locking bolt 12, and the other end of the locking bolt 12 is fitted with the inner wall of the track groove 14, and the track groove 14 is provided on the inner wall of the limiting groove 7.

[0034] In one of the embodiments, the overlapping area of ​​the seat support 5 and the seat plate 6 is greater than 1 / 3 of the area of ​​the seat plate 6, and the seat plate 6 is symmetrically distributed about the center of the back plate 2. The above-mentioned structural design enables the seat support 5 to stably support the seat plate 6, thereby ensuring the stability of the seat plate 6.

[0035] In one of the preferred embodiments, the connecting angle codes 9 are symmetrically distributed about the table panel 8, and the table panel 8 and the connecting angle codes 9 are tightly fitted with the inner wall of the limiting groove 7. The above-mentioned structural design enables the connecting angle codes 9 to stably support the table panel 8, and the limiting groove 7 to stably limit the table panel 8 and the connecting angle codes 9.

[0036] In one of the embodiments, positioning holes 11 are symmetrically provided at the mating ends of the connecting angle code 9 and the limiting groove 7. The positioning holes 11 are tightly fitted with the locking bolts 12. The above structural design enables the locking bolts 12 to be stably installed, which facilitates the fixation of the connecting angle code 9.

[0037] In one of the preferred embodiments, the locking bolt 12 is slidably connected to the track groove 14, and the width of the opening of the track groove 14 is smaller than the diameter of the end of the locking bolt 12 located in the track groove 14. The above-mentioned structural design enables the connecting angle code 9 to slide linearly along the track groove 14 with the locking bolt 12 to adjust the use height of the table panel 8.

[0038] The working principle of the utility model is as follows: when using the device, the bottom end of the standing foot 1 is connected to the floor of the stepped classroom through the existing connecting parts, and then the use height of the table panel 8 is adjusted according to the height of the stepped classroom floor;

[0039] Will Figure 4 The locking nut 13 in the middle is rotated away from the connecting angle code 9, and the connecting angle code 9 is no longer squeezed to fit and fix with the inner wall of the limiting groove 7, pushing the table panel 8 and the connecting angle code 9 to slide along the limiting groove 7, and the connecting angle code 9 slides linearly along the track groove 14 with the locking bolt 12 until the working height of the table panel 8 is appropriate, and the locking nut 13 is rotated to reset and squeeze the connecting angle code 9 to fit and fix with the inner wall of the limiting groove 7, and the table panel 8 can be used normally.

[0040] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A desk and chair for a stepped classroom, characterized in that: It includes: A standing foot (1), the standing foot (1) is fixedly mounted on the side of a back plate (2), a seat bracket (4) is fixed on the front bottom of the back plate (2), a chair seat bracket (5) is mounted on the seat bracket (4), and the chair seat bracket (5) is connected and fixed to the bottom surface of a chair seat plate (6); A back panel (2), wherein a limiting groove (7) is provided at the top of the back of the back panel (2), the inner wall of the limiting groove (7) is fitted with the table panel (8) and the end of the connecting angle code (9), the connecting angle code (9) is fixedly installed on one end of the bottom surface of the table panel (8), and a book net (10) is fixedly installed on the bottom of the table panel (8) inside the connecting angle code (9); A connecting angle code (9) is provided at the end where the connecting angle code (9) and the limiting groove (7) are fitted, a positioning hole (11) is provided, a locking bolt (12) is installed through the positioning hole (11), a locking nut (13) is installed at one end of the locking bolt (12), the other end of the locking bolt (12) is fitted with the inner wall of the track groove (14), and the track groove (14) is provided on the inner wall of the limiting groove (7).

2. The desk and chair for a stepped classroom according to claim 1, characterized in that: An upper back strip (3) is mounted on the top of the back plate (2), and the material of the upper back strip (3) is a high-strength aluminum alloy.

3. The desk and chair for a lecture hall according to claim 1, characterized in that: The chair seat support (5) is rotatably connected to the seat bracket (4), and a gravity restoring mechanism is arranged inside the seat bracket (4).

4. The desk and chair for a lecture hall according to claim 1, characterized in that: The area of ​​the overlapping portion between the seat support (5) and the seat plate (6) is greater than 1 / 3 of the area of ​​the seat plate (6), and the seat plate (6) is symmetrically distributed about the center of the back plate (2).

5. The desk and chair for a lecture hall according to claim 1, characterized in that: The connecting angle brackets (9) are symmetrically distributed with respect to the table panel (8), and the table panel (8) and the connecting angle brackets (9) are both tightly fitted to the inner wall of the limiting groove (7).

6. The desk and chair for a lecture hall according to claim 1, characterized in that: Positioning holes (11) are symmetrically provided at the mating ends of the connecting angle code (9) and the limiting groove (7), and the positioning holes (11) are tightly mated with the locking bolts (12).

7. The desk and chair for a lecture hall according to claim 1, characterized in that: The locking bolt (12) is slidably connected to the track groove (14), and the width of the opening of the track groove (14) is smaller than the diameter of the end of the locking bolt (12) located in the track groove (14).

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