Solid geometry teaching device

Abstract

The utility model relates to the technical field of teaching aids, in particular to a solid geometry teaching device which comprises a box body, a partition plate is horizontally arranged in the box body and divides an inner cavity of the box body into a control cavity and a containing cavity from top to bottom, at least two driving air cylinders are arranged in the control cavity, and the containing cavity is used for containing a solid geometry model. The upper end of the box body is provided with at least two display boards used for placing solid geometry models, the output end of the driving air cylinder penetrates through the top wall of the box body and is rotationally connected with the display boards, and a controller and a driving power source are further arranged in the control cavity. And the controller is used for controlling the driving cylinder to drive the display board to move up and down. According to the utility model, the combination of the plurality of driving cylinders and the display board is convenient for students to compare a plurality of geometries, so that the understanding of the students on solid geometry is improved; the display board is rotationally connected with the output end of the driving cylinder, so that the teacher can conveniently rotate the display board manually.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tools, in particular to a solid geometry teaching device. Background Art

[0002] In the process of mathematics teaching, the content of spatial analytic geometry is often involved. It is difficult to understand dihedral angles, the relationship between lines in space, the relationship between faces, etc. It is difficult for teachers to display geometric models intuitively and from multiple angles during teaching, and it is difficult for students to grasp the relationship between solid geometric points and faces, especially for students with poor spatial imagination. Learning is even more difficult. Moreover, teachers basically take geometric bodies directly to the desk, hold them up by hand and show them to students, which increases the workload of teachers and makes it inconvenient for teachers to explain geometric body information. Moreover, they can only take one at a time, which makes it inconvenient for students to compare between two geometric bodies, affecting the teaching effect. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a solid geometry teaching device.

[0004] The utility model provides the following technical solution: a solid geometry teaching device, comprising a box body, wherein a partition is horizontally arranged in the box body, wherein the partition divides the inner cavity of the box body into a control cavity and a accommodating cavity from top to bottom, wherein at least two driving cylinders are arranged in the control cavity, wherein the accommodating cavity is used to place a solid geometry model, wherein at least two display boards for carrying the solid geometry model are arranged at the upper end of the box body, wherein the output end of the driving cylinder passes through the top wall of the box body and is rotatably connected to the display board, wherein a controller and a driving power supply are also arranged in the control cavity, wherein the controller is used to control the driving cylinder to drive the display board to move up and down.

[0005] The solid geometry teaching device of an embodiment of the utility model divides the inner cavity of the box into a control cavity for placing a control device and a receiving cavity for placing a solid geometry model by setting a partition. The partition is reasonable and convenient for storing and taking out the solid geometry model. The driving cylinder cooperates with the display board to facilitate lifting the solid geometry model to an appropriate height, which is convenient for students to observe. The combination of multiple driving cylinders and display boards can facilitate students to compare between multiple geometric bodies and improve students' understanding of solid geometry. The display board is rotatably connected to the output end of the driving cylinder, which is convenient for teachers to manually rotate the display board to rotate the solid geometry model on the display board. The manual rotation of the display board is highly controllable, which is convenient for teachers to rotate different angles or apply a certain force to keep the display board rotating for a period of time as needed, which is convenient for students to observe and understand the solid geometry model.

[0006] Furthermore, a bearing is provided at the upper end of the output end of the driving cylinder, a mounting ring is provided at the lower end of the display board, the bearing is embedded in the mounting ring, and the outer ring of the bearing is fixedly connected to the inner wall of the mounting ring, and the output end of the driving cylinder is fixedly connected to the inner ring of the bearing.

[0007] Furthermore, the top wall of the box body is provided with a through hole corresponding to the display board, the upper end surface of the box body is provided with a groove concentric with the through hole, the display board is embedded in the groove and adapted to the groove, the upper end surface of the display board is flush with the upper end surface of the box body, the aperture of the through hole is larger than the outer diameter of the mounting ring, and the aperture of the through hole is smaller than the inner diameter of the groove.

[0008] Furthermore, a rubber pad is provided on the upper end surface of the display board.

[0009] Furthermore, a transparent retaining ring is provided on the upper edge of the display board, and the retaining ring is detachably connected to the display board.

[0010] Furthermore, an annular slot is provided on the upper edge of the display board, and the lower end of the retaining ring is embedded in the slot and matched with the slot.

[0011] Furthermore, the inner bottom surface of the accommodating cavity is provided with a plurality of vertical plates, and the plurality of vertical plates are distributed front to back, and the vertical plates divide the accommodating cavity into a plurality of accommodating grooves adapted to the geometric solid model.

[0012] Furthermore, a push handle is provided on one side of the box body, and universal wheels are provided at the four corners of the lower end of the box body.

[0013] Furthermore, a control panel electrically connected to the controller and the driving power supply is provided on the side wall of the box, and an adjustment knob is provided on the control panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a structural schematic diagram of a solid geometry teaching device of the present utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the solid geometry teaching device of the present utility model;

[0017] Figure 3It is a schematic diagram of the internal structure of the box in the solid geometry teaching device of the utility model;

[0018] Figure 4 It is a schematic diagram of the connection between the driving cylinder and the display board in the solid geometry teaching device of the utility model;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the display board in the solid geometry teaching device of the present utility model;

[0020] Figure 6 It is a side structural schematic diagram of the solid geometry teaching device of the present utility model.

[0021] Description of reference numerals:

[0022] 1. Box body; 11. Partition; 12. Control chamber; 13. Accommodating chamber; 131. Accommodating groove; 14. Driving cylinder; 15. Display board; 151. Mounting ring; 152. Rubber pad; 153. Slot; 16. Controller; 17. Driving power supply; 18. Bearing; 19. Through hole; 20. Groove; 21. Retaining ring; 22. Vertical plate; 23. Push handle; 24. Universal wheel; 25. Control panel; 251. Adjustment knob; 26. Opening and closing door. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0024] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0027] Reference Figures 1 to 6 In one embodiment of the utility model, a solid geometry teaching device includes a box body 1, a partition 11 is horizontally arranged in the box body 1, the partition 11 divides the inner cavity of the box body 1 into a control cavity 12 and a receiving cavity 13 from top to bottom, at least two driving cylinders 14 are arranged in the control cavity 12, the receiving cavity 13 is used to place the solid geometry model, at least two display boards 15 for carrying the solid geometry model are arranged at the upper end of the box body 1, the output end of the driving cylinder 14 passes through the top wall of the box body 1 and is rotatably connected to the display board 15, and a controller 16 and a driving power supply 17 are also arranged in the control cavity 12, and the controller 16 is used to control the driving cylinder 14 to drive the display board 15 to move up and down.

[0028] The solid geometry teaching device of an embodiment of the utility model divides the inner cavity of the box body 1 into a control cavity 12 for placing a control device and a receiving cavity 13 for placing a solid geometry model by setting a partition 11. The partition is reasonable and convenient for storing and taking out the solid geometry model. The driving cylinder 14 cooperates with the display board 15 to facilitate lifting the solid geometry model to an appropriate height for students to observe. The combination of multiple driving cylinders 14 and the display board 15 can facilitate students to compare between multiple geometric bodies and improve students' understanding of solid geometry. The display board 15 is rotatably connected to the output end of the driving cylinder 14, which is convenient for teachers to manually rotate the display board 15 to rotate the solid geometry model on the display board 15. The manual rotation of the display board 15 is highly controllable, which is convenient for teachers to rotate different angles or apply a certain force to keep the display board 15 rotating for a period of time as needed, which is convenient for students to observe and understand the solid geometry model.

[0029] A bearing 18 is provided at the upper end of the output end of the driving cylinder 14, and a mounting ring 151 is provided at the lower end of the display board 15. The bearing 18 is embedded in the mounting ring 151, and the outer ring of the bearing 18 is fixedly connected to the inner wall of the mounting ring 151, and the output end of the driving cylinder 14 is fixedly connected to the inner ring of the bearing 18; by providing the bearing 18 and the mounting ring 151, the display board 15 can be stably rotatably connected to the output end of the driving cylinder 14; in this embodiment, there is a gap between the upper end of the bearing 18 and the lower end surface of the display board 15, and the mounting ring 151 is in a circular shape and is integrally formed with the display board 15.

[0030] The top wall of the box body 1 is provided with a through hole 19 corresponding to the display board 15, and the upper end surface of the box body 1 is provided with a groove 20 concentric with the through hole 19. The display board 15 is embedded in the groove 20 and adapted to the groove 20. The upper end surface of the display board 15 is flush with the upper end surface of the box body 1. The aperture of the through hole 19 is larger than the outer diameter of the mounting ring 151, and the aperture of the through hole 19 is smaller than the inner diameter of the groove 20. When the driving cylinder 14 is not started, the display board 15 is embedded in the groove 20 and is flush with the upper end surface of the box body 1, effectively closing the groove 20 and the through hole 19, so as to prevent dust from falling into the control chamber 12 when the utility model is not in use. Moreover, the upper end surface of the box body 1 can be used to place some teaching aids, making full use of the space on the upper end surface of the box body 1; when the driving cylinder 14 is started, its output end rises to a certain height with the display board 15, and at the same time, the display board 15 can be rotated by turning it, which is convenient for students to observe and learn the three-dimensional geometric model; in this embodiment, there is a gap between the outer wall of the mounting ring 151 and the inner wall of the through hole 19, so that when the driving cylinder 14 does not lift the display board 15, only a certain force needs to be applied to the display board 15, and the display board 15 can also rotate smoothly in the groove 20, avoiding friction between the mounting ring 151 and the inner wall of the through hole 19.

[0031] The upper end surface of the display board 15 is provided with a rubber pad 152; by providing the rubber pad 152, the stability of the three-dimensional geometric model placed on the display board 15 can be improved, and the three-dimensional geometric model can be prevented from falling off the display board 15 when the display board 15 rotates too fast.

[0032] A transparent retaining ring 21 is provided at the upper edge of the display board 15, and the retaining ring 21 is detachably connected to the display board 15; an annular slot 153 is provided at the upper edge of the display board 15, and the lower end of the retaining ring 21 is embedded in the slot 153 and matched with the slot 153; the retaining ring 21 can further prevent the three-dimensional geometric model from falling from the display board 15, and the transparent material will not affect the shielding of the three-dimensional geometric model. The retaining ring 21 is detachably connected to the display board 15 by setting the slot 153, so that the retaining ring 21 can be removed after the display board 15 is reset, and the flatness of the upper end surface of the box body 1 is ensured. The removed retaining ring 21 can be placed in the accommodating cavity 13; in this embodiment, the retaining ring 21 is made of transparent glass material. On the premise of ensuring that the retaining ring 21 does not affect the line of sight of the three-dimensional geometric model as much as possible and can prevent the three-dimensional geometric model from falling from the display board 15, the height and thickness of the retaining ring 21 can be appropriately set to be smaller.

[0033] The inner bottom surface of the accommodating cavity 13 is provided with a plurality of vertical plates 22, and the plurality of vertical plates 22 are distributed front and back, and the vertical plates 22 divide the accommodating cavity 13 into a plurality of accommodating grooves 131 adapted to the geometric solid models; by providing the vertical plates 22, the accommodating cavity 13 is divided into a plurality of accommodating grooves 131, which is convenient for classifying and placing the three-dimensional geometric models, and can ensure that the three-dimensional geometric models in the accommodating cavity 13 can be placed neatly and orderly, and are convenient for taking and storing; in this embodiment, the height of the vertical plates 22 is relatively small, which can not only ensure that the three-dimensional geometric models will not tip over, but also facilitate teachers to take and put them.

[0034] A push handle 23 is provided on one side of the box body 1, and universal wheels 24 are provided at the four corners of the lower end of the box body 1; the push handle 23 and the universal wheels 24 are provided to facilitate the teacher to move the box body 1; in this embodiment, an opening and closing door 26 is also provided on the front side wall of the box body 1.

[0035] A control panel 25 electrically connected to the controller 16 and the driving power supply 17 is provided on the side wall of the box body 1, and an adjusting knob 251 is provided on the control panel 25; the control panel 25 is provided on the side wall of the box body 1, so that the teacher can control the driving cylinder 14 conveniently; in this embodiment, the adjusting knob 251 is used to adjust the height of the display board 15 lifted by the driving cylinder 14, and each of the two driving cylinders 14 corresponds to an adjusting knob 251, and the control panel 25 also has a power switch; the controller 16 uses a single-chip microcomputer, the driving cylinder 14 is a conventional cylinder, and the driving power supply 17 is a lithium battery.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solid geometry teaching device, characterized in that: It includes a box body, in which a partition is horizontally arranged, and the partition divides the inner cavity of the box body into a control cavity and a accommodating cavity from top to bottom. At least two driving cylinders are arranged in the control cavity, and the accommodating cavity is used to place a three-dimensional geometric model. At least two display boards for carrying the three-dimensional geometric model are arranged at the upper end of the box body, and the output end of the driving cylinder passes through the top wall of the box body and is rotatably connected to the display board. A controller and a driving power supply are also arranged in the control cavity, and the controller is used to control the driving cylinder to drive the display board to move up and down.

2. The solid geometry teaching device according to claim 1, characterized in that: A bearing is provided at the upper end of the output end of the driving cylinder, a mounting ring is provided at the lower end of the display board, the bearing is embedded in the mounting ring, and the outer ring of the bearing is fixedly connected to the inner wall of the mounting ring, and the output end of the driving cylinder is fixedly connected to the inner ring of the bearing.

3. The solid geometry teaching device according to claim 2, characterized in that: The top wall of the box body is provided with a through hole corresponding to the display board, the upper end surface of the box body is provided with a groove concentric with the through hole, the display board is embedded in the groove and adapted to the groove, the upper end surface of the display board is flush with the upper end surface of the box body, the aperture of the through hole is larger than the outer diameter of the mounting ring, and the aperture of the through hole is smaller than the inner diameter of the groove.

4. The solid geometry teaching device according to claim 1, characterized in that: The upper end surface of the display board is provided with a rubber pad.

5. The solid geometry teaching device according to claim 1, characterized in that: A transparent retaining ring is provided on the upper edge of the display board, and the retaining ring is detachably connected to the display board.

6. The solid geometry teaching device according to claim 5, characterized in that: An annular slot is disposed on the upper edge of the display board, and the lower end of the retaining ring is embedded in the slot and matched with the slot.

7. The solid geometry teaching device according to claim 1, characterized in that: The inner bottom surface of the accommodating cavity is provided with a plurality of vertical plates, which are distributed front to back, and the vertical plates divide the accommodating cavity into a plurality of accommodating grooves adapted to the geometric solid model.

8. The solid geometry teaching device according to claim 1, characterized in that: A push handle is arranged on one side of the box body, and universal wheels are arranged at the four corners of the lower end of the box body.

9. The solid geometry teaching device according to claim 1, characterized in that: A control panel electrically connected to the controller and the driving power supply is provided on the side wall of the box, and an adjusting knob is provided on the control panel.

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