Innovation and entrepreneurship education training teaching aid

By designing innovative and entrepreneurial education and training aids with revolving rolling rubber tape and tensioning devices, the problem of easy writing of existing blackboards or whiteboards is solved, and the continuous display and efficient writing of training content are achieved.

CN120481478AInactive Publication Date: 2025-08-15CHANGSHA AVIATION VOCATIONAL & TECH COLLEGE (AIR FORCE AVIATION MAINTENANCE TECH COLLEGE)
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Patent Information

Application Number
CN202510834165.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-20
Publication Date
2025-08-15
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing movable blackboards or whiteboards are easily filled when used and need to be erased frequently, which affects training efficiency.

Method used

Design an innovative and entrepreneurial education and training aid including rolling rubber belt, back plate and tensioning device. The rolling rubber belt can rotate circulatingly. After the writing is full, the unwritten part is driven upward by driving the roller to keep the previous content unchanged and continue to write new content.

Benefits of technology

Improve training efficiency, avoid the trouble of frequent erasing, and enhance the continuity and convenience of training.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of teaching aids, and particularly relates to an innovation and entrepreneurship education training aid which comprises a teaching aid support used for carrying out education training operation. The rolling rubber belt is installed on the teaching aid support and used for displaying educational training content. The back plate is arranged on the inner side of the rolling rubber belt and used for supporting the rolling rubber belt. By arranging the rolling rubber belt capable of circularly rotating, in the training process, after the area, located on the front side of the back plate, of the rolling rubber belt is fully written, if training content is not finished, the part, located on the area on the front side of the back plate, of the rolling rubber belt can be driven by the driving roller to move upwards; at the moment, the written part on the rolling rubber belt can be rotated to the rear side of the back plate, and the unwritten part of the rolling rubber belt can be moved to the front side area of the back plate, so that new training content can be continuously written on the premise of keeping the previous training content, and the training efficiency is improved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of teaching aids, and in particular relates to an innovation and entrepreneurship education and training teaching aid. Background Art

[0002] Educational and training teaching aids refer to the various tools, equipment, materials, or resources used during education and training to assist teaching activities and enhance learning outcomes. They encompass a wide range of topics, including traditional physical teaching aids (blackboards or whiteboards) and modern, technology-driven digital tools (projectors, computers, and audio equipment). Their core purpose is to help learners understand abstract knowledge, master skills, or enhance practical abilities through intuitive presentation, interactive operations, or simulations.

[0003] In innovation and entrepreneurship training activities, in order to share entrepreneurs' experiences and lessons learned, it is often necessary to use blackboards or whiteboards in addition to equipment such as projectors and computers. In order to increase the flexibility of existing blackboards or whiteboards, many blackboards or whiteboards are designed to be movable. However, these movable blackboards or whiteboards have the following drawbacks when used:

[0004] Since movable blackboards or whiteboards are generally small, they can be easily filled up and need to be erased immediately after being filled up before continuing to write. This makes it necessary to rewrite what was written on the blackboard or whiteboard when reviewing what was previously written, which is troublesome and affects training efficiency.

[0005] Therefore, it is necessary to invent an innovative entrepreneurship education and training teaching aid to solve the above problems. Summary of the Invention

[0006] In response to the above problems, the present invention provides an innovation and entrepreneurship education and training teaching aid to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: an innovation and entrepreneurship education and training teaching aid, comprising:

[0008] Teaching aid stand, used for carrying out education and training operations;

[0009] A rolling rubber belt, mounted on the teaching aid stand, for displaying educational training content;

[0010] a back plate, arranged on the inner side of the rolling rubber belt, for supporting the rolling rubber belt;

[0011] The tensioning device includes a driving roller, a pulling assembly and a stretching assembly. The driving roller is installed on the teaching aid bracket and is used to drive the rolling rubber belt to rotate, and one end of the driving roller is connected to a driving member. The pulling assembly is installed at the bottom of the backboard and is used to drive the rolling rubber belt to unfold. The stretching assembly is arranged on the inner side of the rolling rubber belt and is used to stretch the rolling rubber belt.

[0012] Furthermore, the teaching aid bracket includes:

[0013] There are two vertical panels, which are used to install the back panel;

[0014] The top plate is connected between the tops of the two vertical plates.

[0015] Furthermore, the pulling assembly includes:

[0016] A movable roller is provided at the bottom of the back plate, and is used to cooperate with the stretching assembly to stretch the rolling rubber belt and drive the rolling rubber belt downward to unfold;

[0017] A fixed shaft, used for mounting the movable roller;

[0018] A limiting groove is provided on the vertical plate and is used to limit the moving direction of the fixed shaft;

[0019] The first pushing member is connected to the fixed shaft and is used for driving the fixed shaft to move in a vertical direction.

[0020] Furthermore, the stretching component includes:

[0021] A counterweight roller is provided on the inner side of the rolling rubber belt and is used to tighten the rolling rubber belt by its own gravity;

[0022] A connecting rod is connected between the counterweight roller and the fixed shaft, and is used to drive the counterweight roller to deflect along a fixed direction.

[0023] Furthermore, the bottom of the vertical plate is connected to a support base, and the bottom of the support base is installed with a roller with a locking function.

[0024] Furthermore, a support plate is connected between the two support seats, and an erasing assembly is installed on the top of the support plate, and the erasing assembly includes:

[0025] A strip plate, arranged on top of the support plate;

[0026] A sponge strip connected to the top of the strip plate and used for erasing the rolling rubber belt;

[0027] A support column connected to the bottom of the strip plate and used to support the strip plate;

[0028] A fixed sleeve, sleeved on the bottom of the support column;

[0029] an elastic member connected between the support column and the fixing sleeve, and used for pressing the sponge strip and the rolling rubber belt tightly when the rolling rubber belt and the sponge strip are in contact;

[0030] The moving mechanism is connected to the bottom of the fixing sleeve and is used for driving the strip plate to move in the horizontal direction.

[0031] Furthermore, the moving mechanism includes:

[0032] A mounting plate connected to the bottom of the fixing sleeve;

[0033] A second pushing member is connected to the mounting plate and is used to drive the mounting plate to move in a horizontal direction;

[0034] The limiting mechanism is connected between the mounting plate and the supporting plate and is used to limit the moving direction of the mounting plate.

[0035] Furthermore, a baffle is connected to the connecting rod, which is used to cooperate with the sponge strip to enhance the wiping effect on the rolling rubber belt when the rolling rubber belt contacts the sponge strip.

[0036] Furthermore, a limiting roller is installed on the vertical plate to cooperate with the connecting rod to help the counterweight roller perform deflection operation.

[0037] Furthermore, a mounting bar is installed on the front side of the top plate, and a fill light is installed on the bottom of the mounting bar for performing fill light operation on the front area of the back plate.

[0038] The technical effects and advantages of the present invention are as follows:

[0039] The present invention is provided with a rotatable rolling rubber belt. During the training process, when the area of the rolling rubber belt located in the front side of the backboard is fully written, if the training content has not been completed, the driving roller can drive the part of the rolling rubber belt located in the front side of the backboard to move upward. At this time, the part of the rolling rubber belt that has been written on can be rotated to the back side of the backboard, and the part of the rolling rubber belt that has not been written on can be moved to the front side of the backboard, so that new training content can be continued to be written while retaining the previous training content, thereby improving training efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 It is a partial structural schematic diagram of the present invention;

[0042] Figure 3 It is a three-dimensional schematic diagram of the structures of the rolling rubber belt, the first pushing member and the movable roller in the present invention;

[0043] Figure 4 It is a three-dimensional schematic diagram of the movable roller, fixed shaft, baffle, connecting rod and counterweight roller in the present invention;

[0044] Figure 5 It is a three-dimensional schematic diagram of the movable roller, the fixed shaft, the first pushing member, the back plate and the driving roller in the present invention;

[0045] Figure 6 It is a three-dimensional diagram of the support plate and its top structure in the present invention;

[0046] Figure 7 It is a three-dimensional schematic diagram of the strip plate and sponge strip in the present invention;

[0047] Figure 8 It is a three-dimensional schematic diagram of the neutral plate and the limiting roller of the present invention.

[0048] In the figure: 1. Rolling rubber belt; 2. Back plate; 3. Driving roller; 4. Driving member; 5. Vertical plate; 6. Top plate; 7. Movable roller; 8. Fixed shaft; 9. Limiting groove; 10. First pushing member; 11. Counterweight roller; 12. Connecting rod; 13. Support seat; 14. Roller; 15. Support plate; 16. Strip plate; 17. Sponge strip; 18. Support column; 19. Fixed sleeve; 20. Elastic member; 21. Mounting plate; 22. Second pushing member; 23. Baffle; 24. Limiting roller; 25. Mounting strip; 26. Fill light; 27. Double-control switch; 28. First control switch; 29. Second control switch; 30. Limiting rod; 31. Limiting sleeve. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0050] The present invention provides Figures 1 to 8The teaching aid for innovation and entrepreneurship education and training shown in the figure includes: a teaching aid bracket, a rolling rubber belt 1, a backboard 2 and a tensioning device. The teaching aid bracket is used to carry out education and training operations. The teaching aid bracket includes two vertically parallel upright plates 5 for installing the backboard 2; the top plate 6 is horizontally fixedly connected between the tops of the two upright plates 5; the rolling rubber belt 1 is annular and is installed on the teaching aid bracket for displaying education and training content; the backboard 2 is vertically fixedly connected between the two upright plates 5, and the backboard 2 is arranged on the inner side of the rolling rubber belt 1 for supporting the rolling rubber belt 1; the tensioning device includes a driving roller 3, a pulling component and a stretching component. The driving roller 3 is fixedly connected between the two upright plates 5, and the backboard 2 is arranged on the inner side of the rolling rubber belt 1 for supporting the rolling rubber belt 1; the tensioning device includes a driving roller 3, a pulling component and a stretching component. At the top of the backboard 2, the two ends of the driving roller 3 are respectively connected to the two vertical plates 5 for vertical rotation. The driving roller 3 is used to drive the rolling rubber belt 1 to rotate, and one end of the driving roller 3 is connected to a driving member 4, which can be a motor. The surface of the driving roller 3 is evenly provided with anti-slip grooves along the direction of its axis, and the length of the anti-slip grooves matches the length of the driving roller 3; the pulling component is installed at the bottom of the backboard 2 for driving the rolling rubber belt 1 to unfold, and the tensioning component is provided on the inner side of the rolling rubber belt 1 for tensioning the rolling rubber belt 1. A double-control switch 27 for controlling the forward or reverse rotation of the driving member 4 is installed on the front side of one of the vertical plates 5;

[0051] The pulling assembly includes: a movable roller 7, a fixed shaft 8, a limiting slot 9 and a first pushing member 10. The number of movable rollers 7 is two, and the two movable rollers 7 are symmetrically located horizontally at the bottom of the back plate 2, for cooperating with the stretching assembly to stretch the rolling rubber belt 1 and drive the rolling rubber belt 1 downward to unfold; the fixed shaft 8 is fixedly inserted and inserted between the axis centers of the two movable rollers 7; a vertical limiting slot 9 is provided on one side opposite to the two vertical plates 5 and at a position opposite to the end of the fixed shaft 8, and the two ends of the fixed shaft 8 are slidably installed in the two limiting slots 9 respectively; the first pushing member 10 can be an electric push rod, which is rotatably sleeved in the middle position of the fixed shaft 8. A vertical mounting slot is provided on the rear side of the back plate 2, and the bottom of the mounting slot is open. The top of the first pushing member 10 is fixedly connected to the top slot wall of the mounting slot, for driving the fixed shaft 8 to move in the vertical direction, and a first control switch 28 for controlling the first pushing member 10 is provided at the bottom of the double-control switch 27;

[0052] The tensioning assembly includes: a counterweight roller 11 and a connecting rod 12. The counterweight roller 11 is arranged on the inner side of the rolling rubber belt 1 and is used to tighten the rolling rubber belt 1 by its own gravity. There are two connecting rods 12. The top ends of the two connecting rods 12 are rotatably connected to the two ends of the counterweight roller 11 respectively, and the bottom ends of the two connecting rods 12 are rotatably connected to the two ends of the fixed shaft 8 respectively through torsion springs. The torsion springs can always apply a force to the connecting rods 12 in a direction away from the back plate 2.

[0053] By providing a rotatable rolling rubber belt 1, in the initial state, the first pusher 10 is in a retracted state, at which time the movable roller 7 is in contact with the bottom of the back plate 2, and the counterweight roller 11 can cooperate with the driving roller 3 and the movable roller 7 to stretch the rolling rubber belt 1 from the inner side of the rolling rubber belt 1 under its own gravity and the force of the torsion spring on the connecting rod 12, so that the front side of the rolling rubber belt 1 can be kept in close contact with the back plate 2; when it is necessary to write training content, an erasable marker can be used to write on the area facing the front side of the rolling rubber belt 1 and the back plate 2;

[0054] When the area of the rolling rubber belt 1 on the front side of the backboard 2 is fully written, if the training content has been explained, the written content can be erased with the eraser. If the training content has not been completed, the double-control switch 27 can be pressed to start the driving member 4, so that it drives the part of the rolling rubber belt 1 located in the front side area of the backboard 2 to move upward through the driving roller 3. At this time, the part of the rolling rubber belt 1 that has been written on can be rotated to the back side of the backboard 2, and the part of the rolling rubber belt 1 that has not been written on can be moved to the front area of the backboard 2, so that new training content can be continued without erasing the previously written content, thereby improving training efficiency.

[0055] After the training is completed, if the previously written content needs to be reviewed, the dual-control switch 27 can be used to control the driving member 4 to rotate in the opposite direction, so that the driving roller 3 can drive the rolling rubber belt 1 to rotate in the opposite direction, thereby re-rotating the previously written training content to the front area of the backboard 2, thereby facilitating the trainees to review the previously trained content.

[0056] In addition, by providing the first pusher 10, during the training process, when the training content involves some patterns or tables and the written training content happens to be located in the lower half of the backboard 2, resulting in insufficient writing area, the first control switch 28 can be used to control the first pusher 10 to gradually extend. As the first pusher 10 extends, the first pusher 10 can drive the movable roller 7 to move downward along the limiting groove 9, thereby pressing the rolling rubber belt 1 downward, so that the rolling rubber belt 1 can gradually extend downward, and as the rolling rubber belt 1 gradually extends, the counterweight roller 11 can gradually bring the rolling rubber belt 1 downward under the thrust of the rolling rubber belt 1. The dynamic connecting rod 12 deflects in the direction close to the back plate 2, thereby meeting the need of the rolling rubber belt 1 to stretch downward while keeping the rolling rubber belt 1 stretched tight. When the rolling rubber belt 1 stretches downward, the area on the front side of the back plate 2 that can be written on can be enlarged, thereby providing sufficient writing area for the trainees. In order to facilitate writing, the rolling rubber belt 1 can be driven to rotate upward by the driving member 4, so that the blank writing area can be adjusted upward, thereby improving the convenience of writing. When writing is completed, the rolling rubber belt 1 can be rotated as needed to adjust it to the position where the trainees need to display.

[0057] In addition, after the rolling rubber belt 1 is unfolded downward, the display area can also be increased, which is convenient for students to learn and improves the convenience of training. After the training is completed, as the first pusher 10 contracts and resets, the counterweight roller 11 can be deflected in the direction away from the back plate 2 under the action of its own gravity and the torsion spring, thereby ensuring that the rolling rubber belt 1 is always in a stretched state after reset.

[0058] like Figure 1 and Figure 2 As shown, the bottom of the vertical plate 5 is fixedly connected to a support base 13, and the bottom of the support base 13 is installed with a roller 14 with a locking function;

[0059] The provision of the roller 14 facilitates the movement of the position of the present invention, and after moving to a specified position, the roller 14 can be locked by the locking function of the roller 14, thereby preventing the roller 14 from moving during use of the present invention.

[0060] like Figures 1 to 7As shown, a support plate 15 is fixedly connected horizontally between the two support seats 13, and an erasing assembly is installed on the top of the support plate 15. The erasing assembly includes: a strip plate 16, a sponge strip 17, a support column 18, a fixing sleeve 19, an elastic member 20 and a moving mechanism. The strip plate 16 is arranged on the top of the support plate 15; the sponge strip 17 is detachably installed on the top of the strip plate 16, and the length of the sponge strip 17 matches the width of the rolling rubber belt 1, which is used to perform an erasing operation on the rolling rubber belt 1; the number of the support columns 18 is two, and the two support columns 18 rotate respectively. The movable connection is at a position near both sides of the bottom of the strip plate 16, and the rear side of the strip plate 16 can always be tilted upward under the support of the two support columns 18; the fixed sleeve 19 is slidably connected to the bottom of the support column 18; the elastic member 20 can be a spring, and the elastic member 20 is fixedly connected between the bottom of the support column 18 and the inner wall of the bottom of the fixed sleeve 19, and is used to press the sponge strip 17 and the rolling rubber belt 1 when the rolling rubber belt 1 contacts the sponge strip 17; the moving mechanism is connected to the bottom of the fixed sleeve 19, and is used to drive the strip plate 16 to move in the horizontal direction;

[0061] The moving mechanism includes: a mounting plate 21, a second pusher 22 and a limiting mechanism; the mounting plate 21 is horizontally fixedly connected to the bottom of the two fixing sleeves 19, and the front edge of the mounting plate 21 protrudes downward; the second pusher 22 can be an electric push rod, the second pusher 22 is horizontally and vertically fixedly connected to the downward protruding portion of the front edge of the mounting plate 21, the rear end of the second pusher 22 is fixedly connected to the top of the support plate 15, and the second pusher 22 is used to drive the mounting plate 21 to move in the horizontal direction; the limiting mechanism Connected between the mounting plate 21 and the support plate 15, it is used to limit the movement direction of the mounting plate 21. A second control switch 29 for controlling the second pusher 22 is installed at the bottom of the first control switch 28. The limiting mechanism includes a limiting rod 30 and a limiting sleeve 31. There are two limiting sleeves 31, which are horizontally symmetrically fixed to the bottom of the mounting plate 21. The limiting rod 30 is L-shaped and slidably inserted into the rear side of the limiting sleeve 31. The bottom end of the limiting rod 30 is fixedly connected to the support plate 15.

[0062] By providing an erasing component, during the writing process, when the rolling rubber belt 1 is unfolded downward, as the rolling rubber belt 1 contacts the sponge strip 17 from top to bottom, the sponge strip 17 can drive the strip plate 16 and the support column 18 to move downward under the action of pressure and compress the elastic member 20, and as the elastic member 20 is squeezed, the reaction force of the elastic member 20 on the support column 18 can make the sponge strip 17 and the rolling rubber belt 1 stably pressed together, so that when it is necessary to erase the content written on the rolling rubber belt 1, as the driving member 4 is controlled by the double-control switch 27 to drive the rolling rubber belt 1 to rotate, the sponge strip 17 can always stick to the surface of the rolling rubber belt 1, and when the part with words on the rolling rubber belt 1 contacts the sponge strip 17, the sponge strip 17 can automatically erase the font, thereby improving the convenience of use of the present invention and also improving the training efficiency;

[0063] When the erasing operation is not required, the second push member 22 can be shortened by the second control switch 29, thereby driving the mounting plate 21 to move backward along the direction of the limit rod 30, so that the sponge strip 17 can be separated from the surface of the rolling rubber belt 1, thereby ensuring that the sponge strip 17 will not erase the content written on the rolling rubber belt 1 during the process of the driving member 4 driving the rolling rubber belt 1 to rotate and display.

[0064] like Figure 4 As shown, a baffle 23 is fixedly connected between the two connecting rods 12, and the width of the baffle 23 matches the width of the sponge strip 17, which is used to cooperate with the sponge strip 17 to improve the wiping effect of the rolling rubber belt 1 when the rolling rubber belt 1 contacts the sponge strip 17;

[0065] As the rolling rubber belt 1 gradually unfolds downward, when the outer side of the rolling rubber belt 1 is in close contact with the sponge strip 17 on the strip plate 16, the baffle 23 can also be supported on the inner side of the contact position between the rolling rubber belt 1 and the sponge strip 17, thereby supporting the position where the rolling rubber belt 1 is erased, thereby improving the stability of the contact between the rolling rubber belt 1 and the sponge strip 17 and improving the erasing effect of the sponge strip 17.

[0066] like Figure 8 As shown, the two vertical plates 5 are rotatably mounted on opposite sides thereof with a limiting roller 24, which is located on the side of the connecting rod 12 away from the back plate 2. When the first pusher 10 is fully retracted, the limiting roller 24 is just in contact with the position of the connecting rod 12 near the bottom end.

[0067] By providing the limiting roller 24, in the initial state, when the counterweight roller 11 fully stretches the rolling rubber belt 1 under the action of the torsion spring on the connecting rod 12, the limiting roller 24 can just keep in contact with the rear side of the connecting rod 12, thereby blocking and restricting the limiting rod 30, preventing the full weight of the counterweight roller 11 from being completely pressed on the rolling rubber belt 1, thereby playing a certain protective role for the rolling rubber belt 1;

[0068] When the first pushing member 10 extends and drives the movable roller 7 to move downward, the bottom of the rolling rubber belt 1 can gradually stretch out under the pressure of the movable roller 7. At the same time, as the fixed shaft 8 moves downward, the connecting rod 12 can drive the counterweight roller 11 to move downward under the pull of the fixed shaft 8. During this process, the limiting roller 24 can apply a thrust to the connecting rod 12 in the direction close to the back plate 2, so that the counterweight roller 11 can move forward under the drive of the connecting rod 12, thereby reducing the pulling force on the rolling rubber belt 1. As the pressure of the counterweight roller 11 on the rolling rubber belt 1 decreases, the movable roller 7 can more easily drive the bottom of the rolling rubber belt 1 to unfold downward, thereby reducing the pulling force applied to the rolling rubber belt 1 during the unfolding process, thereby protecting the rolling rubber belt 1 and preventing the rolling rubber belt 1 from being damaged.

[0069] like Figure 1 and Figure 2 As shown, a mounting strip 25 is fixedly mounted on the front side of the top plate 6, and a fill light 26 is mounted on the bottom of the mounting strip 25. The fill light 26 is directly opposite to the front area of the back plate 2;

[0070] By providing a fill light 26, the fill light 26 can be turned on in a dark environment to illuminate and fill light the words on the rolling rubber belt 1 in the front area of the backboard 2, thereby ensuring that the students can

[0071] Clearly understand the training content.

[0072] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. An innovation and entrepreneurship education and training teaching aid, characterized by: include: Teaching aid stand, used for carrying out education and training operations; A rolling rubber belt (1) is mounted on the teaching aid stand and is used to display educational training content; A back plate (2) is arranged on the inner side of the rolling rubber belt (1) and is used to support the rolling rubber belt (1); The tensioning device comprises a driving roller (3), a pulling component and a stretching component, wherein the driving roller (3) is mounted on the teaching aid bracket and is used to drive the rolling rubber belt (1) to rotate, and one end of the driving roller (3) is connected to a driving member (4), the pulling component is mounted on the bottom of the backboard (2) and is used to drive the rolling rubber belt (1) to unfold, and the stretching component is arranged on the inner side of the rolling rubber belt (1) and is used to stretch the rolling rubber belt (1).

2. The innovation and entrepreneurship education and training teaching aid according to claim 1 is characterized in that: The teaching aid bracket comprises: Vertical plates (5), the number of the vertical plates (5) is two, and they are used to install the back plate (2); The top plate (6) is connected between the tops of the two vertical plates (5).

3. The innovation and entrepreneurship education and training teaching aid according to claim 2 is characterized in that: The pulling assembly includes: A movable roller (7) is provided at the bottom of the back plate (2) and is used to cooperate with the stretching component to stretch the rolling rubber belt (1) and drive the rolling rubber belt (1) downward to unfold; A fixed shaft (8) for mounting the movable roller (7); A limiting groove (9) is provided on the vertical plate (5) and is used to limit the moving direction of the fixed shaft (8); The first pushing member (10) is connected to the fixed shaft (8) and is used to drive the fixed shaft (8) to move in a vertical direction.

4. The innovation and entrepreneurship education and training teaching aid according to claim 3 is characterized in that: The stretching assembly comprises: A counterweight roller (11) is arranged on the inner side of the rolling rubber belt (1) and is used to tighten the rolling rubber belt (1) by its own gravity; A connecting rod (12) is connected between the counterweight roller (11) and the fixed shaft (8) and is used to drive the counterweight roller (11) to deflect along a fixed direction.

5. The innovation and entrepreneurship education and training teaching aid according to claim 4 is characterized in that: The bottom of the vertical plate (5) is connected to a support seat (13), and the bottom of the support seat (13) is installed with a roller (14) with a locking function.

6. The innovation and entrepreneurship education and training teaching aid according to claim 5 is characterized in that: A support plate (15) is connected between the two support seats (13), and an erasing component is installed on the top of the support plate (15), and the erasing component includes: A strip plate (16) is arranged on top of the support plate (15); A sponge strip (17) connected to the top of the strip plate (16) for performing an wiping operation on the rolling rubber belt (1); A support column (18) connected to the bottom of the strip plate (16) for supporting the strip plate (16); A fixed sleeve (19) is sleeved on the bottom of the support column (18); an elastic member (20) connected between the support column (18) and the fixing sleeve (19) and used for pressing the sponge strip (17) and the rolling rubber belt (1) together when the rolling rubber belt (1) and the sponge strip (17) are in contact; The moving mechanism is connected to the bottom of the fixing sleeve (19) and is used to drive the strip plate (16) to move in the horizontal direction.

7. The innovation and entrepreneurship education and training teaching aid according to claim 6, characterized in that: The moving mechanism comprises: A mounting plate (21) connected to the bottom of the fixing sleeve (19); A second pushing member (22) is connected to the mounting plate (21) and is used to drive the mounting plate (21) to move in a horizontal direction; A limiting mechanism is connected between the mounting plate (21) and the support plate (15) and is used to limit the moving direction of the mounting plate (21).

8. The innovation and entrepreneurship education and training teaching aid according to claim 7 is characterized in that: The connecting rod (12) is connected to a baffle (23) for cooperating with the sponge strip (17) to enhance the wiping effect on the rolling rubber belt (1) when the rolling rubber belt (1) contacts the sponge strip (17).

9. The innovation and entrepreneurship education and training teaching aid according to claim 8, characterized in that: A limiting roller (24) is installed on the vertical plate (5) for cooperating with the connecting rod (12) to help the counterweight roller (11) perform a deflection operation.

10. The innovation and entrepreneurship education and training teaching aid according to claim 9, characterized in that: A mounting bar (25) is installed on the front side of the top plate (6), and a fill light (26) is installed on the bottom of the mounting bar (25) for performing fill light operation on the front area of the back plate (2).