CN211059703U - Combined solid geometry teaching instrument - Google Patents

Abstract

The utility model relates to the technical field of three-dimensional geometry teaching, and discloses a combined three-dimensional geometry teaching instrument, which comprises a box body, a storage cabinet and a storage drawer. The hollow fixing block, the right side wall of the hollow fixing block is fixedly installed with a motor, the output end of the motor is fixedly connected with a bidirectional screw rod, the left and right ends of the upper surface of the hollow fixing block are fixedly installed with telescopic rods, and the top of the telescopic rod is fixedly installed with a support plate The lower surface of the support plate is fixedly connected with a lifting frame, the left and right ends of the bottom of the lifting frame are fixedly connected with a first connecting block, the first connecting block penetrates the upper surface of the hollow fixed block and is fixedly connected with the slider, and the bottom of the support plate is fixed There is a rotating motor, the rotating motor is fixedly connected with a rotating shaft, and the top of the rotating shaft is rotatably connected with a holographic projector. The utility model is easy to operate, and can intuitively and clearly display the mathematical solid geometry teaching comprehensively.

Description

A combined solid geometry teaching instrument

technical field

The utility model relates to the technical field of solid geometry teaching, in particular to a combined solid geometry teaching instrument.

Background technique

In the teaching process of advanced mathematics, it is mainly to cultivate students' mathematical thinking, which is the derivation of mathematical formulas with logical thinking, and at the same time pays attention to students' perceptual cognition behind the abstract formulas of advanced mathematics. In geometry teaching, the stereoscopic display of polyhedrons is often involved.

The traditional three-dimensional geometry teaching can only be drawn on the blackboard, which is not only troublesome to draw, but also has poor intuitiveness, which increases the difficulty of geometry teaching and reduces the teaching quality. It is difficult to express specific geometric shapes for complex and abstract mathematical equations.

Utility model content

The purpose of the utility model is to solve the problem that it is difficult to intuitively teach the solid geometry in the prior art, and proposes a combined solid geometry teaching instrument.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A combined three-dimensional geometry teaching instrument comprises a box body, a storage cabinet and a storage drawer, the top of the box body is provided with a through hole, the inner bottom surface of the box body is fixedly installed with a hollow fixing block, and the hollow fixing block A motor is fixedly installed on the right side wall of the motor, and a bidirectional screw rod is fixedly connected to the output end of the motor. A telescopic rod is fixedly installed at both ends, a support plate is fixedly installed on the top of the telescopic rod, a lifting frame is fixedly connected to the lower surface of the support plate, and a first connecting block is fixedly connected to the left and right ends of the bottom of the lifting frame. The first connecting block penetrates the upper surface of the hollow fixed block and is fixedly connected with the slider, the bottom of the support plate is fixedly equipped with a rotating motor, the rotating motor is fixedly connected with a rotating shaft, and the top of the rotating shaft is rotatably connected There are holographic projectors.

Preferably, the telescopic rod is tightly sleeved by a plurality of sleeves.

Preferably, a U-shaped groove is formed on one side of the storage drawer and the storage cabinet, the bottom of the box body is slidably connected with the storage drawer and the storage cabinet, and the bottom of the storage drawer and the storage cabinet is slidably connected. All are fixedly installed with universal wheels.

Preferably, a rotation bearing is embedded in the left side wall of the hollow fixing block, and the bidirectional screw rod passes through the rotation bearing and is rotatably connected with the left end of the hollow fixing block.

Preferably, a heat dissipation pad is fixedly installed at the bottom of the holographic projector.

Preferably, a first guide pulley is fixedly installed on the left and right side walls of the hollow fixing block, a second guide pulley is fixedly installed on the top of the inner surface of the box, and a second connection is fixedly connected to the left and right ends of the upper surface of the support plate The upper surface of the first connecting block is fixedly connected with a pulling rope, and the pulling rope passes through the first guide pulley and the second guide pulley and is fixedly connected with the side wall of the slider.

Compared with the prior art, the utility model provides a combined three-dimensional geometry teaching instrument, which has the following beneficial effects:

1. The combined three-dimensional geometry teaching instrument, through the rotation of the motor, makes the two-way screw fixedly connected to the rotating shaft of the motor start to rotate, and at the same time slides to both sides of the box through the sliding block threaded on the two-way screw, so as to The lifting frame fixed on the hollow fixed block realizes lifting and lowering through the left and right movement of the slider, so that the support plate fixed on the top of the lifting frame drives the holographic projector at the top to realize the lifting function.

2. The combined three-dimensional geometry teaching instrument makes the first connecting block fixed on the sliding block move with the sliding block through the left and right movement of the slider, so that the pull rope fixedly connected on the first connecting block passes through the first connecting block. The guide pulley and the second guide pulley are simultaneously connected to the second connecting block fixed on the support plate, so that the support plate moves up and down, and the telescopic rod fixed on the hollow fixed block supports the support plate.

3. The combined three-dimensional geometry teaching instrument drives the rotating shaft to rotate through the rotation of the rotating motor at the bottom of the support plate, so that the holographic projector connected with the rotating shaft starts to rotate in all directions to realize multi-directional image projection.

The parts not involved in the device are the same as the existing technology or can be realized by using the existing technology, the utility model is convenient to operate, and the traditional blackboard three-dimensional geometry teaching is transferred from the plane to the realistic three-dimensional teaching, which reduces the difficulty of teaching and increases the teaching The richness of content enables students to better understand the knowledge of solid geometry.

Description of drawings

Fig. 1 is the structural representation of a kind of combined three-dimensional geometry teaching instrument proposed by the utility model;

2 is a schematic structural diagram of part A of a combined three-dimensional geometry teaching instrument proposed by the utility model;

FIG. 3 is a schematic structural diagram of part B of a combined three-dimensional geometry teaching instrument proposed by the utility model.

In the picture: 1 box, 2 storage drawers, 3 storage cabinets, 4 through holes, 5 hollow fixing blocks, 6 motors, 7 two-way screw rods, 8 sliders, 9 telescopic rods, 10 support plates, 11 lift frames, 12 first connecting block, 13 rotating motor, 14 rotating shaft, 15 holographic projector, 16 U-shaped groove, 17 universal wheel, 18 cooling pad, 19 first guide pulley, 20 second guide pulley, 21 second connecting block, 22 drawcords.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation , are constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

Referring to Figures 1-3, a combined three-dimensional geometry teaching instrument includes a box body 1, a storage cabinet 3 and a storage drawer 2. The top of the box body 1 is provided with a through hole 4, and the inner bottom surface of the box body 1 is fixedly installed with a hollow space. Fixed block 5, a motor 6 is fixedly installed on the right side wall of the hollow fixed block 5, the output end of the motor 6 is fixedly connected with a bidirectional screw rod 7, and the bidirectional screw rod 7 is located in the hollow fixed block 5 and the rod wall thread is provided with two sliders 8. Telescopic rods 9 are fixedly installed on the left and right ends of the upper surface of the hollow fixed block 5. A support plate 10 is fixedly installed on the top of the telescopic rod 9, and a lifting frame 11 is fixedly connected to the lower surface of the supporting plate 10. The end is fixedly connected with a first connecting block 12, the first connecting block 12 penetrates the upper surface of the hollow fixed block 5 and is fixedly connected with the slider 8, the bottom of the support plate 10 is fixedly equipped with a rotating motor 13, and the rotating motor 13 is fixedly connected with a rotating The shaft 14, the top of the rotating shaft 14 is rotatably connected with the holographic projector 15, the telescopic rod 9 is tightly sleeved by a plurality of sleeves, the storage drawer 2 and the storage cabinet 3 are provided with a U-shaped groove 16 on one side, and the box body 1 The bottom of the hollow fixed block 5 is slidably connected with the storage drawer 2 and the storage cabinet 3, and the bottoms of the storage drawer 2 and the storage cabinet 3 are fixedly installed with a universal wheel 17, and the left side wall of the hollow fixed block 5 is embedded with a rotating bearing, The two-way screw 7 passes through the rotating bearing and is rotatably connected to the left end of the hollow fixed block 5. The bottom of the holographic projector 15 is fixedly installed with a heat dissipation pad 18, and the left and right side walls of the hollow fixed block 5 are fixedly installed with first guide pulleys 19. 1. A second guide pulley 20 is fixedly installed on the top of the inner surface, a second connecting block 21 is fixedly connected to the left and right ends of the upper surface of the support plate 10, and a pulling rope 22 is fixedly connected to the upper surface of the first connecting block 21, and the pulling rope 22 passes through The first guide pulley 19 and the second guide pulley 20 are fixedly connected to the side wall of the slider 8 .

In the present utility model, through the rotation of the motor 6, the bidirectional screw rod 7 fixedly connected to the rotating shaft of the motor 6 starts to rotate, and at the same time, the slider 8 threadedly connected to the bidirectional screw rod 7 slides to both sides of the box body 1, Therefore, the lifting frame 11 fixed on the hollow fixing block 5 is lifted and lowered by the left and right movement of the slider 8 , so that the support plate 10 fixed on the top of the lifting frame 11 drives the holographic projector 15 at the top thereof to realize the lifting function. The left and right movement makes the first connecting block 12 fixed on the slider 8 move with the slider 8, so that the pull rope 22 fixedly connected to the first connecting block 12 passes through the first guide pulley 19 and the second guide pulley 20 At the same time, the second connecting block 21 fixed on the support plate 10 is connected, so that the support plate 10 moves up and down, and the telescopic rod 9 fixed on the hollow fixed block 5 supports the support plate 10 through the bottom of the support plate 10. The rotation of the rotation motor 13 drives the rotation shaft 14 to rotate, so that the holographic projector 15 rotatably connected with the rotation shaft 14 starts to rotate in all directions to realize multi-directional image projection.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. The combined solid geometry teaching instrument comprises a box body (1), a storage cabinet (3) and a storage drawer (2), and is characterized in that a through hole (4) is formed in the top of the box body (1), a hollow fixed block (5) is fixedly installed on the bottom surface inside the box body (1), a motor (6) is fixedly installed on the right side wall of the hollow fixed block (5), a bidirectional lead screw (7) is fixedly connected to the output end of the motor (6), the bidirectional lead screw (7) is located in the hollow fixed block (5), two sliding blocks (8) are arranged on the rod wall in a threaded manner, telescopic rods (9) are fixedly installed at the left end and the right end of the upper surface of the hollow fixed block (5), a support plate (10) is fixedly installed at the top of each telescopic rod (9), a lifting frame (11) is fixedly connected to the lower surface of the support plate (10), and a first connecting block (12) is, first connecting block (12) run through the upper surface of cavity fixed block (5) and with slider (8) fixed connection, the fixed rotation motor (13) that is equipped with in bottom of backup pad (10), rotation motor (13) fixedly connected with axis of rotation (14), the top of axis of rotation (14) is rotated and is connected with holographic projector (15).

2. The combined solid geometry teaching instrument according to claim 1, characterized in that the telescopic rod (9) is tightly sleeved by a plurality of sleeves.

3. The combined solid geometry teaching instrument according to claim 1, wherein one side of the storage drawer (2) and the storage cabinet (3) is provided with a U-shaped groove (16), the bottom of the box body (1) is slidably connected with the storage drawer (2) and the storage cabinet (3), and the bottoms of the storage drawer (2) and the storage cabinet (3) are both fixedly provided with universal wheels (17).

4. The combined solid geometry teaching instrument according to claim 1, wherein a rotating bearing is embedded in the left side wall of the hollow fixed block (5), and the bidirectional screw rod (7) passes through the rotating bearing and is rotatably connected with the left end of the hollow fixed block (5).

5. The combined solid geometry teaching instrument according to claim 1, wherein a heat dissipation pad (18) is fixedly mounted at the bottom of the holographic projector (15).

6. The combined solid geometry teaching instrument according to claim 1, wherein a first guide pulley (19) is fixedly mounted on the left side wall and the right side wall of the hollow fixing block (5), a second guide pulley (20) is fixedly mounted on the top of the inner surface of the box body (1), second connecting blocks (21) are fixedly connected to the left end and the right end of the upper surface of the supporting plate (10), a pull rope (22) is fixedly connected to the upper surface of the first connecting block (12), and the pull rope (22) penetrates through the first guide pulley (19) and the second guide pulley (20) and is fixedly connected with the side wall of the sliding block (8).

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