Lifting type writing base plate for students

Abstract

The utility model particularly relates to a lifting type student writing base plate which comprises a bottom plate and a top plate, a concave cavity is formed in the upper end of the bottom plate, two movable plates are installed in the concave cavity in a sliding mode, threaded rods connected with the two movable plates in a threaded mode are rotatably installed in the concave cavity, and a connecting base is fixedly installed at the lower end of the top plate. First supporting plates are rotationally installed at the two ends of the movable plate on one side, second supporting plates are rotationally installed at the two ends of the movable plate on the other side correspondingly, first rotating plates are fixedly installed at the upper ends of the two first supporting plates correspondingly, and the first rotating plates are rotationally connected with the outer end of the connecting base. According to the multifunctional teaching aid, the top plate can be lifted on the upper side of the bottom plate, and the angle of the top plate can be adjusted, so that the height and the angle of the top plate are matched with the writing habits of students, and the writing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of writing pads, specifically a height-adjustable writing pad for students. Background Art

[0002] In modern educational environments, writing pads have gradually become an important teaching aid, providing students with a more comfortable and healthy writing experience. However, existing writing pads have the following drawbacks: First, traditional writing pads usually have a fixed height and cannot be adjusted according to the student's height. This forces some students to look down or up for extended periods when using these pads, easily causing fatigue in the neck and back. Second, due to the non-adjustable height, traditional writing pads are difficult to adapt to students of different ages. In particular, as children grow, their height changes significantly, and fixed-height pads may no longer be suitable for them. Therefore, we propose an adjustable writing pad for students. Utility Model Content

[0003] The purpose of this invention is to provide a height-adjustable writing pad for students to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a lifting student writing pad, comprising a base plate and a top plate. A cavity is formed at the upper end of the base plate, and two movable plates are slidably installed within the cavity. A threaded rod, threadedly connected to the two movable plates, is rotatably installed within the cavity. A connecting seat is fixedly installed at the lower end of the top plate. First support plates are rotatably installed at both ends of one movable plate, and second support plates are rotatably installed at both ends of the other movable plate. First rotating plates are fixedly installed at the upper ends of the two first support plates, and the first rotating plates are rotatably connected to the outer ends of the connecting seat. Second rotating plates are fixedly installed at the upper ends of the two second support plates, and the second rotating plates are rotatably connected to the outer ends of the first rotating plates.

[0005] Preferably, the concave cavity has grooves on both sides, the rotating handles at both ends of the threaded rod are respectively rotatably installed in the two grooves, the two movable plates have threaded holes in the middle, and the threaded rod is threadedly connected to the threaded holes.

[0006] Preferably, the connecting seat has a first positioning tooth hole, the first rotating plate has a second positioning tooth hole, the second rotating plate has a third positioning tooth hole, and positioning tooth rods are inserted and installed in the first positioning tooth hole, the second rotating plate, and the third positioning tooth hole.

[0007] Preferably, a spring is fixedly installed between the positioning toothed rod and the connecting seat, and a movable rod is fixedly installed at one end of the positioning toothed rod.

[0008] Preferably, the connecting seat has a limiting cavity that communicates with the first positioning tooth hole, a limiting plate is fixedly installed around the positioning tooth rod, the spring is fixedly installed between the limiting cavity and the limiting plate, and the spring is sleeved around the positioning tooth rod.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] This type of adjustable writing pad for students uses a rotating plate connected to a connecting seat and a movable plate, and a threaded connection between the movable plate and a threaded rod. The rotating threaded rod can drive the top plate to move up and down on the upper part of the bottom plate, thus achieving the effect of raising and lowering the top plate. Combined with the rotating connection between the connecting seat and the rotating plate, the height and angle of the top plate can be adjusted to suit the student's writing habits and improve the student's writing comfort.

[0011] This type of adjustable writing pad for students uses a positioning toothed rod connected to the first positioning toothed hole, the second rotating plate, and the third positioning toothed hole. After the top plate angle is adjusted, the connection between the connecting seat and the first and second rotating plates can be positioned to prevent the top plate from becoming loose. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the external structure of the bottom plate and top plate from the front view of this utility model;

[0013] Figure 2 This is a schematic diagram of the external structure of the bottom plate and top plate from the rear view of this utility model;

[0014] Figure 3 This is a schematic diagram of the internal disassembled structure of the threaded rod of this utility model;

[0015] Figure 4 This is a schematic diagram of the internal disassembled structure of the positioning toothed rod of this utility model.

[0016] In the picture:

[0017] 1. Base plate; 10. Top plate; 11. Cavity; 12. Groove; 13. First support plate; 14. Second support plate;

[0018] 2. Movable plate; 21. Threaded hole; 22. Threaded rod;

[0019] 3. Connecting seat; 31. First rotating plate; 32. Second rotating plate; 33. First positioning tooth hole; 34. Second positioning tooth hole; 35. Third positioning tooth hole; 36. Positioning tooth rod; 361. Movable rod; 37. Limiting cavity; 38. Limiting plate; 39. Spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a lifting student writing pad, including a base plate 1 and a top plate 10. The upper end of the base plate 1 has a cavity 11, and two movable plates 2 are slidably installed in the cavity 11. A threaded rod 22, which is threadedly connected to the two movable plates 2, is rotatably installed in the cavity 11. A connecting seat 3 is fixedly installed at the lower end of the top plate 10. A first support plate 13 is rotatably installed at both ends of one movable plate 2, and a second support plate 14 is rotatably installed at both ends of the other movable plate 2. A first rotating plate 31 is fixedly installed at the upper end of the two first support plates 13, and the first rotating plate 31 is rotatably connected to the outer end of the connecting seat 3. A second rotating plate 32 is fixedly installed at the upper end of the two second support plates 14, and the second rotating plate 32 is rotatably connected to the outer end of the first rotating plate 31.

[0022] Working principle: When adjusting the height of the top plate 10, the threaded rod 22 rotates within the cavity 11. Through the sliding connection between the cavity 11 and the movable plate 2, the direction of movement of the movable plate 2 is restricted. This allows the rotating threaded rod 22 to drive the two movable plates 2 to move towards each other via the threaded connection between the threaded rod and the two movable plates 2. Then, through the rotational connection between the first rotating plate 31 and the second rotating plate 32, the moving movable plates 2 can drive the top plate 10 to move up and down, achieving the effect of raising and lowering the top plate 10. Furthermore, since the connecting seat 3 is rotatably connected to the first rotating plate 31 and the second rotating plate 32, the top plate 10 can be rotated on the upper side of the bottom plate 1, achieving the effect of adjusting the height and angle of the top plate 10, thereby improving the writing comfort of students.

[0023] As a further description of the above technical solution: grooves 12 are provided on both sides of the cavity 11, and the rotating handles at both ends of the threaded rod 22 are respectively rotatably installed in the two grooves 12. Threaded holes 21 are provided in the middle of the two movable plates 2, and the threaded rod 22 is threadedly connected to the threaded holes 21.

[0024] Specifically, grooves 12 are provided, and the rotating handles at both ends of the threaded rod 22 are respectively rotated and installed in the two grooves 12. This not only restricts the movement direction of the threaded rod 22, but also facilitates the rotation of the threaded rod 22. At the same time, it prevents the two ends of the threaded rod 22 from protruding at the outer end of the base plate 1, thus achieving the effect of protecting the handles at the outer end of the threaded rod 22.

[0025] As a further description of the above technical solution: a first positioning toothed hole 33 is provided in the connecting seat 3, a second positioning toothed hole 34 is provided in the first rotating plate 31, and a third positioning toothed hole 35 is provided in the second rotating plate 32. A positioning toothed rod 36 is inserted and installed in the first positioning toothed hole 33, the second rotating plate 32, and the third positioning toothed hole 35. A spring 39 is fixedly installed between the positioning toothed rod 36 and the connecting seat 3, and a movable rod 361 is fixedly installed at one end of the positioning toothed rod 36. A limiting cavity 37 communicating with the first positioning toothed hole 33 is provided in the connecting seat 3. A limiting plate 38 is fixedly installed around the positioning toothed rod 36. The spring 39 is fixedly installed between the limiting cavity 37 and the limiting plate 38, and the spring 39 is sleeved around the positioning toothed rod 36.

[0026] Specifically, when adjusting the angle of the top plate 10, the positioning toothed rod 36 is pulled out by the movable rod 361, so that the positioning toothed rod 36 is separated from the second positioning toothed hole 34 and the third positioning toothed hole 35, and the spring 39 is deformed.

[0027] Furthermore, the angle of the top plate 10 can be adjusted by the rotatable connection between the connecting seat 3 and the first rotating plate 31 and the second rotating plate 32.

[0028] Subsequently, the movable rod 361 is released, and under the action of the spring 39 restoring its deformation, the positioning tooth rod 36 can be driven to reset, so that the positioning tooth rod 36 can be re-inserted into the second positioning tooth hole 34 and the third positioning tooth hole 35, thereby positioning the top plate 10 and preventing the top plate 10 from shifting.

[0029] In addition, the limiting cavity 37 and the limiting plate 38 are provided. Through the interlocking effect between the two, the movement range of the positioning toothed rod 36 can be restricted within the connecting seat 3 to prevent it from separating from the connecting seat 3.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A height-adjustable writing pad for students, comprising a base plate (1) and a top plate (10), characterized in that: The bottom plate (1) has a cavity (11) at its upper end. Two movable plates (2) are slidably installed in the cavity (11). A threaded rod (22) that is threadedly connected to the two movable plates (2) is rotatably installed in the cavity (11). A connecting seat (3) is fixedly installed at the lower end of the top plate (10). A first support plate (13) is rotatably installed at both ends of one movable plate (2). A second support plate (14) is rotatably installed at both ends of the other movable plate (2). A first rotating plate (31) is fixedly installed at the upper end of the two first support plates (13). The first rotating plate (31) is rotatably connected to the outer end of the connecting seat (3). A second rotating plate (32) is fixedly installed at the upper end of the two second support plates (14). The second rotating plate (32) is rotatably connected to the outer end of the first rotating plate (31).

2. The adjustable writing pad for students according to claim 1, characterized in that: The cavity (11) has grooves (12) on both sides. The rotating handles at both ends of the threaded rod (22) are respectively installed in the two grooves (12). The two movable plates (2) have threaded holes (21) in the middle. The threaded rod (22) is threadedly connected to the threaded holes (21).

3. The adjustable writing pad for students according to claim 1, characterized in that: The connecting seat (3) has a first positioning tooth hole (33), the first rotating plate (31) has a second positioning tooth hole (34), the second rotating plate (32) has a third positioning tooth hole (35), and a positioning tooth rod (36) is inserted into the first positioning tooth hole (33), the second rotating plate (32), and the third positioning tooth hole (35).

4. A height-adjustable writing pad for students according to claim 3, characterized in that: A spring (39) is fixedly installed between the positioning toothed rod (36) and the connecting seat (3), and a movable rod (361) is fixedly installed at one end of the positioning toothed rod (36).

5. A height-adjustable writing pad for students according to claim 4, characterized in that: The connecting seat (3) has a limiting cavity (37) that communicates with the first positioning tooth hole (33). The positioning tooth rod (36) is fixedly installed with a limiting plate (38) on its periphery. The spring (39) is fixedly installed between the limiting cavity (37) and the limiting plate (38), and the spring (39) is sleeved on the periphery of the positioning tooth rod (36).

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