Auxiliary teaching device for solid geometry

Abstract

The utility model discloses an auxiliary teaching device for solid geometry, which comprises a placing seat and a mounting seat, the upper surface of the placing seat is fixedly connected with a sucker, the placing seat is internally provided with a cavity, the side surface of the placing seat is provided with a communicating pipe, the side inner wall of the communicating pipe is slidably connected with a baffle plate, and the baffle plate is provided with a through hole. A protruding block is fixedly connected to the side surface of the containing base, a first threaded rod is rotatably connected to the upper surface of the protruding block, the outer surface of the first threaded rod is in threaded connection with a baffle, a first straight gear is fixedly connected to the outer surface of the first threaded rod, and a rotating shaft is rotatably connected to the interior of the protruding block in a penetrating mode. The top end of the rotating shaft is fixedly connected with a second straight gear, the first straight gear is meshed with the second straight gear, the bottom end of the rotating shaft is fixedly connected with a rotary knob, the solid geometry auxiliary model is placed on the containing base, the suction cup is pressed, and air in the cavity is compressed, so that the model can be adsorbed to the containing base.

Description

Technical Field

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

[0002] In mathematics, solid geometry is the traditional name for the geometry of three-dimensional Euclidean space. Stereo mapping deals with the measurement of the volume of different shapes: cylinders, cones, frustums, spheres, prisms, wedges, etc. Building certain models can make it easier for students to learn solid geometry, which requires showing the geometric bodies in front of the students.

[0003] When displaying a solid geometry model, the existing solid geometry auxiliary teaching device generally places the model on a placement seat, and installs a clamping mechanism or a retaining ring around the placement seat to prevent the model from falling from the placement seat. However, the lower end of the model will be blocked, which will affect students' observation of the model. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art, and provides a three-dimensional geometry auxiliary teaching device. By placing a three-dimensional geometry auxiliary model on a placement seat and pressing a suction cup, the model can be adsorbed on the placement seat by compressing the air in the cavity, and the side will not be blocked, which is convenient for students to observe. When the model needs to be removed, the knob is turned to make the first spur gear mesh with the second spur gear for transmission, and then the baffle slides downward along the axial direction of the first threaded rod, so that the connecting pipe is connected with the outside, and the model can be removed from the suction cup. The operation is simple and convenient, and it is avoided to set a retaining ring or a clamping mechanism around the placement seat, and the utility model has good practicality; the second threaded rod is driven to rotate by the first motor, and the fixed cylinder is rotated and moved up and down to adjust the height of the model; the first bevel gear is meshed with the second bevel gear by the second motor, and then the connecting shaft drives the mounting seat to rotate to adjust the angle of the model. The roller can reduce the friction between the mounting seat and the moving seat, and reduce the wear of the device.

[0005] The utility model also provides the above-mentioned solid geometry auxiliary teaching device, including: a placing seat and a mounting seat, the upper surface of the placing seat is fixedly connected with a suction cup, the interior of the placing seat is provided with a cavity, the side surface of the placing seat is provided with a connecting pipe, the side inner wall of the connecting pipe is slidably connected with a baffle, the side surface of the placing seat is fixedly connected with a protrusion, the upper surface of the protrusion is rotatably connected with a first threaded rod, the outer surface of the first threaded rod is threadedly connected with the baffle, the outer surface of the first threaded rod is fixedly connected with a first spur gear, the interior of the protrusion passes through a rotating shaft that is rotatably connected, the top end of the rotating shaft is fixedly connected with a second spur gear, the first spur gear and the second spur gear are meshed with each other, and the bottom end of the rotating shaft is fixedly connected with a knob.

[0006] According to the stereo geometry auxiliary teaching device, there are multiple suction cups, and the suction cups, the cavities and the connecting pipes are interconnected.

[0007] According to the three-dimensional geometry auxiliary teaching device, a lifting mechanism is arranged on the upper surface of the mounting seat, and the lifting mechanism includes a first motor, a second threaded rod, a connecting tube and a fixing tube, the output end of the first motor is fixedly connected to the second threaded rod, the outer surface of the second threaded rod is threadedly connected to the connecting tube, the top end of the connecting tube is fixedly connected to the placement seat, and the upper surface of the mounting seat is fixedly connected to the fixing tube.

[0008] According to the solid geometry auxiliary teaching device, the lifting mechanism also includes a fixed cylinder, a telescopic rod and a spring. The upper surface of the mounting seat is fixedly connected to the fixed cylinder, the bottom inner wall of the fixed cylinder is fixedly connected to the spring, the end of the spring away from the fixed cylinder is fixedly connected to the telescopic rod, and the top of the telescopic rod is fixedly connected to the placement seat.

[0009] According to the solid geometry auxiliary teaching device, a connecting shaft is fixedly connected to the lower surface of the mounting seat, a moving seat is arranged on the lower surface of the mounting seat, a rotating mechanism is arranged inside the moving seat, and the rotating mechanism includes a second motor, a first bevel gear and a second bevel gear, the output end of the second motor is fixedly connected to the first bevel gear, the outer surface of the connecting shaft is fixedly connected to the second bevel gear, and the first bevel gear and the second bevel gear are meshed with each other.

[0010] According to the stereo geometry auxiliary teaching device, a groove is provided inside the movable seat, and the lifting mechanism is located inside the groove.

[0011] According to the stereo geometry auxiliary teaching device, a roller is provided inside the mounting seat, and the outer surface of the roller is rollingly connected to the moving seat.

[0012] According to the stereo geometry auxiliary teaching device, rollers are arranged on the lower surface of the movable seat.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 It is a schematic diagram of the overall structure of the solid geometry auxiliary teaching device of the utility model;

[0016] Figure 2It is a cross-sectional schematic diagram of the lifting mechanism and the placement seat of the solid geometry auxiliary teaching device of the utility model;

[0017] Figure 3 The utility model is a solid geometry auxiliary teaching device Figure 2 A partial enlarged schematic diagram in the middle;

[0018] Figure 4 It is a cross-sectional schematic diagram of the moving seat and the rotating seat of the solid geometry auxiliary teaching device of the utility model.

[0019] Legend:

[0020] 1. Placement seat; 2. Suction cup; 3. Cavity; 4. Connecting pipe; 5. Baffle; 6. Bump; 7. First threaded rod; 8. First spur gear; 9. Rotating shaft; 10. Second spur gear; 11. Knob; 12. Mounting seat; 13. First motor; 14. Second threaded rod; 15. Connecting tube; 16. Fixed tube; 17. Telescopic rod; 18. Spring; 19. Moving seat; 20. Roller; 21. Second motor; 22. First bevel gear; 23. Connecting shaft; 24. Second bevel gear; 25. Groove; 26. Roller. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-4The solid geometry auxiliary teaching device of the utility model embodiment comprises: a placement seat 1 and a mounting seat 12, a suction cup 2 is fixedly connected to the upper surface of the placement seat 1, a cavity 3 is arranged inside the placement seat 1, a connecting pipe 4 is arranged on the side surface of the placement seat 1, the number of the suction cup 2 is multiple, the suction cup 2, the cavity 3 and the connecting pipe 4 are connected to each other, a baffle 5 is slidably connected to the side inner wall of the connecting pipe 4, a protrusion 6 is fixedly connected to the side surface of the placement seat 1, a first threaded rod 7 is rotatably connected to the upper surface of the protrusion 6, the outer surface of the first threaded rod 7 is threadedly connected to the baffle 5, a first straight gear 8 is fixedly connected to the outer surface of the first threaded rod 7, a rotating shaft 9 is rotatably connected to the interior of the protrusion 6, and the rotating shaft The top of 9 is fixedly connected with the second spur gear 10, the first spur gear 8 and the second spur gear 10 are meshed with each other, and the bottom end of the rotating shaft 9 is fixedly connected with the knob 11. When the three-dimensional model needs to be displayed, the lower surface of the model is placed on the placement seat 1 and the suction cup 2 is pressed. The model is adsorbed on the placement seat 1 by compressing the air in the cavity 3. When the model needs to be removed, the knob 11 is turned to make the first spur gear 8 and the second spur gear 10 mesh and transmit, and then the baffle 5 will slide downward along the axial direction of the first threaded rod 7, so that the connecting pipe 4 is connected with the outside world, and the model can be removed from the suction cup 2. The operation is simple and convenient, and it avoids setting a retaining ring around the placement seat 1, which has good practicality.

[0023] A lifting mechanism is arranged on the upper surface of the mounting seat 12, and the lifting mechanism includes a first motor 13, a second threaded rod 14, a connecting tube 15 and a fixing tube 16. The output end of the first motor 13 is fixedly connected to the second threaded rod 14, the outer surface of the second threaded rod 14 is threadedly connected to the connecting tube 15, the top end of the connecting tube 15 is fixedly connected to the placement seat 1, and the upper surface of the mounting seat 12 is fixedly connected to the fixing tube 16. The lifting mechanism also includes a fixing tube 16, a telescopic rod 17 and a spring 18. The upper surface of the mounting seat 12 is fixedly connected to the fixing tube 16, the bottom inner wall of the fixing tube 16 is fixedly connected to the spring 18, the end of the spring 18 away from the fixing tube 16 is fixedly connected to the telescopic rod 17, and the top end of the telescopic rod 17 is fixedly connected to the placement seat 1. When the height of the model needs to be adjusted, the first motor 13 is started to drive the second threaded rod 14 to rotate, the fixing tube 16 is rotated and moved up and down, and the telescopic rod 17 and the spring 18 play a certain supporting and guiding role in the lifting and lowering of the placement seat 1.

[0024] A connecting shaft 23 is fixedly connected to the lower surface of the mounting seat 12, and a moving seat 19 is arranged on the lower surface of the mounting seat 12. A roller 20 is arranged inside the mounting seat 12, and the outer surface of the roller 20 is rollingly connected to the moving seat 19. A rotating mechanism is arranged inside the moving seat 19, and the rotating mechanism includes a second motor 21, a first bevel gear 22 and a second bevel gear 24. The output end of the second motor 21 is fixedly connected to the first bevel gear 22, and the outer surface of the connecting shaft 23 is fixedly connected to the second bevel gear 24. The first bevel gear 22 and the second bevel gear 24 are meshed with each other. A groove 25 is arranged inside the moving seat 19, and the lifting mechanism is located inside the groove 25. When the angle of the model needs to be rotated, the second motor 21 is started to make the first bevel gear 22 and the second bevel gear 24 mesh and transmit, so that the connecting shaft 23 drives the mounting seat 12 to rotate, and the roller 20 is used to reduce the friction between the mounting seat 12 and the moving seat 19 and reduce the wear of the device.

[0025] The lower surface of the moving base 19 is provided with rollers 26, and the rollers 26 are used to move the entire device.

[0026] Working principle: When the device is used for 3D geometry auxiliary teaching, first place the lower surface of the 3D model to be displayed on the placement seat 1 and press the suction cup 2, and the model is adsorbed on the placement seat 1 by compressing the air in the cavity 3; if the height of the model needs to be adjusted, start the first motor 13 to drive the second threaded rod 14 to rotate, and the fixed cylinder 16 is rotated and moved up and down, and the telescopic rod 17 and the spring 18 play a certain supporting and guiding role in the lifting and lowering of the placement seat 1; if the angle of the model needs to be rotated, start the second motor 21 to drive the first bevel gear The wheel 22 meshes with the second bevel gear 24 for transmission, and then the connecting shaft 23 drives the mounting seat 12 to rotate. The roller 20 is used to reduce the friction between the mounting seat 12 and the movable seat 19, and reduce the wear of the device. When the model needs to be removed, the knob 11 is turned to make the first spur gear 8 mesh with the second spur gear 10 for transmission, and then the baffle 5 will slide downward along the axial direction of the first threaded rod 7, so that the connecting pipe 4 is connected with the outside world, and the model can be removed from the suction cup 2. The operation is simple and convenient, and it avoids setting a retaining ring around the placement seat 1, which has good practicality.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A solid geometry auxiliary teaching device, characterized in that: include: A placement seat (1) and a mounting seat (12), wherein the upper surface of the placement seat (1) is fixedly connected with a suction cup (2), a cavity (3) is arranged inside the placement seat (1), a connecting pipe (4) is arranged on the side surface of the placement seat (1), a baffle (5) is slidably connected to the side inner wall of the connecting pipe (4), a convex block (6) is fixedly connected to the side surface of the placement seat (1), a first threaded rod (7) is rotatably connected to the upper surface of the convex block (6), an outer surface of the first threaded rod (7) is threadedly connected to the baffle (5), a first spur gear (8) is fixedly connected to the outer surface of the first threaded rod (7), a rotating shaft (9) is rotatably connected to the inside of the convex block (6), a second spur gear (10) is fixedly connected to the top end of the rotating shaft (9), the first spur gear (8) and the second spur gear (10) are meshed with each other, and a knob (11) is fixedly connected to the bottom end of the rotating shaft (9).

2. The solid geometry auxiliary teaching device according to claim 1, characterized in that: The number of the suction cups (2) is plural, and the suction cups (2), the cavities (3) and the connecting pipes (4) are interconnected.

3. The solid geometry auxiliary teaching device according to claim 1, characterized in that: The upper surface of the mounting seat (12) is provided with a lifting mechanism, the lifting mechanism comprising a first motor (13), a second threaded rod (14), a connecting tube (15) and a fixing tube (16); the output end of the first motor (13) is fixedly connected to the second threaded rod (14); the outer surface of the second threaded rod (14) is threadedly connected to the connecting tube (15); the top end of the connecting tube (15) is fixedly connected to the placement seat (1); and the upper surface of the mounting seat (12) is fixedly connected to the fixing tube (16).

4. The solid geometry auxiliary teaching device according to claim 3, characterized in that: The lifting mechanism further comprises a fixed cylinder (16), a telescopic rod (17) and a spring (18); the bottom inner wall of the fixed cylinder (16) is fixedly connected to the spring (18); one end of the spring (18) away from the fixed cylinder (16) is fixedly connected to the telescopic rod (17); and the top end of the telescopic rod (17) is fixedly connected to the placement seat (1).

5. The solid geometry auxiliary teaching device according to claim 1, characterized in that: The lower surface of the mounting seat (12) is fixedly connected with a connecting shaft (23), the lower surface of the mounting seat (12) is provided with a moving seat (19), the interior of the moving seat (19) is provided with a rotating mechanism, the rotating mechanism comprises a second motor (21), a first bevel gear (22) and a second bevel gear (24), the output end of the second motor (21) is fixedly connected with the first bevel gear (22), the outer surface of the connecting shaft (23) is fixedly connected with the second bevel gear (24), and the first bevel gear (22) and the second bevel gear (24) are meshed with each other.

6. The solid geometry auxiliary teaching device according to claim 5, characterized in that: A roller (20) is arranged inside the mounting seat (12), and the outer surface of the roller (20) is rollingly connected to the movable seat (19).

7. The solid geometry auxiliary teaching device according to claim 5, characterized in that: The lower surface of the movable seat (19) is provided with a roller (26).

Images