Novel demonstrator

Abstract

The utility model discloses a novel demonstrator, which belongs to the technical field of demonstrators and comprises a mounting plate, one side of the mounting plate is connected with two limiting plates in a sliding manner, the sides, close to each other, of the two limiting plates are provided with a demonstrator body, one side of each limiting plate is fixedly connected with two connecting rods, and one end of each connecting rod is connected with a T-shaped plate. According to the novel demonstrator, through arrangement of a limiting block, a limiting groove, T-shaped plates, a tension spring and a spring, when the demonstrator body touches a plastic pad, the limiting block is pushed to move, and when the limiting groove in the limiting block moves to the T-shaped plates, the tension spring pulls the two T-shaped plates to be close to each other, so that the T-shaped plates are inserted into the limiting groove; meanwhile, the T-shaped plate can drive the connecting rod and the limiting plate to be close to each other to limit the demonstrator body, at the moment, the demonstrator body can be installed on the installing plate, the demonstrator body can be conveniently disassembled and assembled, and then the demonstrator body can be conveniently overhauled.

Description

Technical Field

[0001] The utility model belongs to the technical field of demonstrators, in particular to a new demonstrator. Background Art

[0002] In the process of advanced mathematics teaching, in order to facilitate students' understanding, a teaching demonstrator is usually used. The existing demonstrator is generally an electronic whiteboard. The electronic whiteboard is a multimedia teaching device. The teacher teaches by touching the screen on the electronic whiteboard. The existing electronic whiteboard is generally integrated and inconvenient to disassemble and install, which makes it inconvenient to repair it. Utility Model Content

[0003] In order to overcome the above defects, the utility model provides a new type of demonstrator, which solves the problem that the existing electronic whiteboard is generally integrated and inconvenient to disassemble and install, resulting in inconvenience in maintenance.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new demonstrator, comprising a mounting plate, one side of the mounting plate is slidably connected to two limit plates, a demonstrator body is arranged on the side where the two limit plates are close to each other, one side of the limit plate is fixedly connected to two connecting rods, one end of the two connecting rods is connected to a T-shaped plate, and two fixed rods are slidably connected to the two T-shaped plates;

[0005] A tension spring is sleeved on the fixing rod, a fixing body is fixedly connected to one side of the mounting plate, two movable columns are slidably connected to the fixing body, a spring is sleeved on the movable column, one end of the two movable columns is connected to a limiting block, two T-shaped plates are arranged on the limiting block, and two limiting grooves are provided on the limiting block.

[0006] As a further solution of the utility model: both sides of the mounting plate are fixedly connected with vertical plates, the bottoms of the two vertical plates are fixedly connected with bottom plates, and one side of one vertical plate is fixedly connected with two fixing plates.

[0007] As a further solution of the utility model: a rotating shaft is fixedly connected to the mounting plate, one end of the rotating shaft passes through one of the vertical plates and is connected to a worm wheel, and a worm is meshed on the worm wheel.

[0008] As a further solution of the utility model: a rotating rod is fixedly connected to the worm, a bearing is sleeved on the rotating rod, and a turning handle is fixedly connected to one end of the rotating rod.

[0009] As a further solution of the utility model: four mounting blocks are fixedly connected to the demonstrator body, mounting holes are provided on the mounting blocks, and four limiting rods are fixedly connected to one side of the mounting plate.

[0010] As a further solution of the utility model: a round cap is connected to one end of the movable column, a handle is fixedly connected to the T-shaped plate, and a plastic pad is arranged on one side of the limit block.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The new demonstrator is provided with a limit block, a limit groove, a T-shaped plate, a tension spring and a spring. When the demonstrator body needs to be installed on the mounting plate, the mounting hole is first placed on the limit rod to position the demonstrator body. When the demonstrator body hits the plastic pad, the limit block is pushed to move. When the limit groove on the limit block moves to the T-shaped plate, the tension spring will pull the two T-shaped plates closer to each other, so that the T-shaped plate is inserted into the limit groove. At the same time, the T-shaped plate will drive the connecting rod and the limit plate closer to each other to limit the demonstrator body. At this time, the demonstrator body can be installed on the mounting plate. When the demonstrator body needs to be disassembled, the two handles are pulled to drive the two T-shaped plates away from each other. When the T-shaped plate is out of the limit groove, the spring will push the limit block to move and eject the demonstrator body. At the same time, under the limit of the limit rod, the demonstrator body will not fall from the mounting plate. At this time, the demonstrator body can be removed. The demonstrator is convenient for disassembly and assembly of the demonstrator body, thereby facilitating the inspection and maintenance of the demonstrator body.

[0013] 2. The new demonstrator is provided with a worm wheel, a rotating shaft and a worm. When the angle of the demonstrator body needs to be adjusted, the angle of the demonstrator body can be adjusted by turning the handle to drive the rotating rod, the worm, the worm wheel, the rotating shaft, the mounting plate and the demonstrator body to rotate. By adjusting the angle of the demonstrator body, teachers and students can watch the demonstrator body at the most comfortable angle. At the same time, the worm wheel and the worm have a self-locking function to ensure the stability of the adjustment angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the utility model demonstrator body and the mounting plate being separated;

[0016] Figure 3 It is a three-dimensional structural diagram of the mounting plate of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure in which the limit block and the T-shaped plate are separated from each other in the utility model;

[0018] In the figure: 1. Mounting plate; 2. Limiting plate; 3. Demonstrator body; 4. Vertical plate; 5. Bottom plate; 6. Fixed plate; 7. Turning rod; 8. Turning handle; 9. Worm; 10. Bearing; 11. Worm gear; 12. Rotating shaft; 13. Mounting block; 14. Mounting hole; 15. Limiting rod; 16. Connecting rod; 17. T-shaped plate; 18. Limiting block; 19. Spring; 20. Movable column; 21. Round cap; 22. Handle; 23. Plastic pad; 24. Limiting groove; 25. Fixed rod; 26. Tension spring; 27. Fixed body. DETAILED DESCRIPTION

[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0020] like Figure 1-4 As shown, the utility model provides a technical solution: a new demonstrator, including a mounting plate 1, both sides of the mounting plate 1 are fixedly connected with vertical plates 4, the bottoms of the two vertical plates 4 are fixedly connected with bottom plates 5, one side of one of the vertical plates 4 is fixedly connected with two fixed plates 6, and one side of the mounting plate 1 is slidably connected with two limit plates 2.

[0021] A demonstrator body 3 is provided on the side where the two limit plates 2 are close to each other, and four mounting blocks 13 are fixedly connected to the demonstrator body 3. The mounting blocks 13 are provided with mounting holes 14. Four limit rods 15 are fixedly connected to one side of the mounting plate 1, and two connecting rods 16 are fixedly connected to one side of the limit plate 2. One end of the two connecting rods 16 is connected to a T-shaped plate 17.

[0022] Two fixing rods 25 are slidably connected to the two T-shaped plates 17, and tension springs 26 are sleeved on the fixing rods 25. A fixing body 27 is fixedly connected to one side of the mounting plate 1, and a rotating shaft 12 is fixedly connected to the mounting plate 1. One end of the rotating shaft 12 passes through one of the vertical plates 4 and is connected to a worm gear 11. A worm 9 is meshed on the worm gear 11, and a rotating rod 7 is fixedly connected to the worm gear 9. A bearing 10 is sleeved on the rotating rod 7. Due to the bearing 10, when the rotating handle 8 is turned to drive the rotating rod 7 to rotate on the bearing 10, the friction is smaller, and it is convenient to rotate the rotating handle 8. One end of the rotating rod 7 is fixedly connected to the rotating handle 8. Due to the rotating handle 8, when the rotating handle 8 is turned to drive the rotating rod 7 to rotate, the rotating handle 8 makes the rotating rod 7 easier to rotate, thereby improving the convenience of operation.

[0023] Two movable columns 20 are slidably connected to the fixed body 27, and a spring 19 is sleeved on the movable column 20. One end of the two movable columns 20 is connected to a limit block 18, and two T-shaped plates 17 are arranged on the limit block 18. Two limit grooves 24 are provided on the limit block 18. A round cap 21 is connected to one end of the movable column 20, and a handle 22 is fixedly connected to the T-shaped plate 17. Because the handle 22 is designed as an arc surface, when the handle 22 is pulled to drive the T-shaped plate 17 to move, the arc surface design of the handle 22 can make the staff's hands more comfortable and improve practicality. A plastic pad 23 is arranged on one side of the limit block 18. Because the plastic pad 23 is provided, when the demonstrator body 3 contacts the plastic pad 23, the plastic design of the plastic pad 23 can prevent the contact between the limit block 18 and the demonstrator body 3 from scratching the demonstrator body 3, thereby protecting the demonstrator body 3.

[0024] The working principle of the utility model is:

[0025] When the demonstrator body 3 needs to be installed on the mounting plate 1, the mounting hole 14 is first placed on the limit rod 15 to position the demonstrator body 3. When the demonstrator body 3 hits the plastic pad 23, the limit block 18 is pushed to move. When the limit groove 24 on the limit block 18 moves to the T-shaped plate 17, the tension spring 26 will pull the two T-shaped plates 17 closer to each other, so that the T-shaped plate 17 is inserted into the limit groove 24. At the same time, the T-shaped plate 17 will drive the connecting rod 16 and the limit plate 2 to be close to each other. The demonstrator body 3 is limited in position, and the demonstrator body 3 can be installed on the mounting plate 1. When the demonstrator body 3 needs to be disassembled, the two handles 22 are pulled to drive the two T-shaped plates 17 to move away from each other. When the T-shaped plates 17 are separated from the limiting grooves 24, the springs 19 will push the limiting blocks 18 to move and push the demonstrator body 3 out. At the same time, under the limiting position of the limiting rods 15, the demonstrator body 3 will not fall from the mounting plate 1, and the demonstrator body 3 can be removed at this time.

[0026] When the angle of the demonstrator body 3 needs to be adjusted, the handle 8 is rotated to drive the rotating rod 7, the worm 9, the worm gear 11, the rotating shaft 12, the mounting plate 1 and the demonstrator body 3 to rotate, so that the angle of the demonstrator body 3 can be adjusted.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 by specific circumstances.

[0028] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A novel demonstrator, comprising a mounting plate (1), characterized in that: One side of the mounting plate (1) is slidably connected to two limit plates (2), a demonstrator body (3) is provided on the side where the two limit plates (2) are close to each other, one side of the limit plate (2) is fixedly connected to two connecting rods (16), one end of the two connecting rods (16) is connected to a T-shaped plate (17), and two fixing rods (25) are slidably connected to the two T-shaped plates (17); A tension spring (26) is sleeved on the fixing rod (25), a fixing body (27) is fixedly connected to one side of the mounting plate (1), two movable columns (20) are slidably connected to the fixing body (27), a spring (19) is sleeved on the movable columns (20), one end of the two movable columns (20) is connected to a limiting block (18), two T-shaped plates (17) are arranged on the limiting block (18), and two limiting grooves (24) are provided on the limiting block (18).

2. A novel demonstrator according to claim 1, characterized in that: Both sides of the mounting plate (1) are fixedly connected to upright plates (4), the bottoms of the two upright plates (4) are fixedly connected to bottom plates (5), and one side of one of the upright plates (4) is fixedly connected to two fixing plates (6).

3. A novel demonstrator according to claim 2, characterized in that: A rotating shaft (12) is fixedly connected to the mounting plate (1), one end of the rotating shaft (12) passes through one of the vertical plates (4) and is connected to a worm wheel (11), and a worm (9) is meshed on the worm wheel (11).

4. A novel demonstrator according to claim 3, characterized in that: The worm (9) is fixedly connected to a rotating rod (7), a bearing (10) is sleeved on the rotating rod (7), and one end of the rotating rod (7) is fixedly connected to a rotating handle (8).

5. A novel demonstrator according to claim 1, characterized in that: Four mounting blocks (13) are fixedly connected to the demonstrator body (3), mounting holes (14) are provided on the mounting blocks (13), and four limiting rods (15) are fixedly connected to one side of the mounting plate (1).

6. A novel demonstrator according to claim 1, characterized in that: A round cap (21) is connected to one end of the movable column (20), a handle (22) is fixedly connected to the T-shaped plate (17), and a plastic pad (23) is arranged on one side of the limit block (18).

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