A flexible basic teaching action demonstration teaching aid and a method of using the same
By designing a sliding device for the inclined slide and foot fixing components, the problem of teachers having difficulty getting off the bar when demonstrating leg pressing movements was solved, thus improving the convenience and safety of the demonstration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIHUA UNIV
- Filing Date
- 2026-04-15
- Publication Date
- 2026-06-23
AI Technical Summary
Teachers are prone to fatigue when demonstrating leg-pressing exercises for extended periods, which can make it difficult for them to dismount from the bar, especially older teachers who may find it difficult to demonstrate multiple exercises continuously.
A motion demonstration teaching aid including a horizontal bar and a sliding device was designed. The sliding device has an inclined slide and a foot fixing component. Through the cooperation of the inclined slide and the foot fixing component, the difficulty of the teacher demonstrating dismounting from the bar is reduced. The sliding device can drive the foot fixing component to move, provide lateral support, and rotate to open the foot fixing groove when dismounting from the bar, reducing the leg lifting range.
It significantly reduced the difficulty for teachers to dismount from the bar during demonstrations, improved the convenience and safety of the demonstrations, reduced teacher fatigue, and enhanced the continuity of the demonstrations.
Smart Images
Figure CN122006208B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of basic flexibility teaching demonstration aids, specifically, to a basic flexibility teaching demonstration aid and its usage method. Background Technology
[0002] In teaching dance, cheerleading, aerobics, and similar activities, proper explanation and demonstration of basic flexibility movements are crucial for students to master standard postures. When teaching leg stretches, teachers typically use existing leg stretch bars for demonstration. Leg stretches come in various types, and to ensure the standardization and intuitiveness of basic movement instruction, each movement must be demonstrated one by one. Maintaining various leg stretching postures for extended periods can easily cause leg soreness for teachers, especially since teachers are often older than their students and their endurance and flexibility are declining. After demonstrating multiple movements consecutively, interrupting or ending the demonstration and removing oneself from the bar becomes very difficult. Summary of the Invention
[0003] This invention provides a movement demonstration teaching aid for basic flexibility teaching and its usage method. It improves upon the problem in the prior art that it is difficult for teachers to perform the dismount movement after demonstrating the movement, and can reduce the difficulty of teachers performing the dismount movement after demonstrating the movement.
[0004] To achieve the above objectives, in a first aspect, the present invention provides a movement demonstration teaching aid for basic flexibility instruction, comprising:
[0005] crossbar;
[0006] A sliding device includes an inclined slide and a foot fixing assembly. The inclined slide is connected to the crossbar and includes an upper surface facing away from the crossbar, the upper surface gradually moving away from the crossbar from one side to the other along the extension direction of the crossbar. The foot fixing assembly includes a first sub-part and a second sub-part. The first sub-part is slidably connected to the upper surface along the extension direction of the inclined slide, and the second sub-part is hinged to the first sub-part, with the axial direction of the hinge axis forming an acute angle or a right angle with the extension direction of the crossbar. The second sub-part is closer to the crossbar than the first sub-part, and the side of the second sub-part closer to the upper surface is detachably abutted against the upper surface. The side of the foot fixing assembly facing away from the crossbar is recessed towards the crossbar to form a foot fixing groove, the foot fixing groove extending along the width direction of the crossbar, and partly located in the first sub-part and partly located in the second sub-part. When beginning the demonstration, the foot fixing component needs to be slid between the two sides of the upper surface or away from the crossbar. The user lifts their leg to place their foot in the foot fixing slot for the demonstration. The foot fixing slot provides lateral support for the user's foot, facilitating a complete, accurate, and convenient demonstration. When it's time to dismount, the foot fixing component slides towards the side closer to the crossbar until the second sub-section at least partially extends beyond the upper surface. Because the upper surface is sloped, the user's leg lift is reduced as the second sub-section reaches this position, thus initially lowering the difficulty of dismounting. Once the second sub-section at least partially extends beyond the upper surface, the upper surface can no longer provide support for it, allowing the second sub-section to rotate towards the crossbar. The foot fixing slot opens towards the side facing the second sub-section, allowing the user to move their leg laterally to dismount without needing to lift their leg again, further reducing the difficulty of dismounting.
[0007] As an optional technical solution, the sliding device further includes a driving assembly, which includes a transmission component and a driving component. The transmission component is disposed inside the inclined slide table along the extension direction of the upper surface, and the first sub-part is connected to the transmission component. The driving component is connected to the transmission component and is used to drive the first sub-part to slide through the transmission component. The driving assembly can drive the foot fixing component to move, which helps to improve the ease of use of the action demonstration teaching aid.
[0008] As an optional technical solution, the inclined slide has an internal space, which is inclined relative to the upper surface. The transmission component is disposed in the internal space along the extension direction of the upper surface, and the driving component is disposed on the side of the internal space away from the crossbar. The inclined slide also has a cleaning hole, which extends from the side of the internal space near the crossbar to the outside of the inclined slide. Water can be injected into the internal space through the cleaning hole to clean dust. Because the internal space is inclined and the driving component is disposed on the side of the internal space away from the crossbar, water is less likely to come into contact with the driving component when injected through the cleaning hole, thus protecting the driving component.
[0009] As an optional technical solution, an adjusting sleeve is also included. The adjusting sleeve is rotatably fitted onto the crossbar, and the sliding device is disposed on the outer wall of the adjusting sleeve. A fastening screw is provided on the adjusting sleeve, passing through the outer wall of the adjusting sleeve to the interior of the adjusting sleeve and detachably abutting against the crossbar. By rotating the adjusting sleeve, the height and pitch angle of the foot fixing component can be changed, which is beneficial for accommodating users of different heights and demonstrating different movements.
[0010] As an optional technical solution, a support device is also included. The support device includes a base, and the crossbar is connected to the base. The base is provided with multiple support legs for supporting the base. Using the base and the support legs to support the crossbar eliminates the need for the crossbar to be connected to a wall support. When the user is demonstrating actions, an observer can surround the user to observe, which helps to improve the demonstration effect.
[0011] As an optional technical solution, the base includes a telescopic rod, which comprises a fixed part and a telescopic part. The support legs are connected to the fixed part, and the telescopic part is connected to the crossbar. The telescopic rod allows adjustment of the crossbar's height to suit the needs of users of different heights.
[0012] As an optional technical solution, the crossbar is equipped with a vertical pole that extends away from the base, and a multimedia screen is provided at the end of the vertical pole. The multimedia screen can play demonstration videos, text, or voice explanations while the action demonstration is being performed, which helps to improve the effect of the action demonstration.
[0013] As an optional technical solution, a soft pad is provided inside the foot fixing groove. The soft pad helps to improve the comfort of using the action demonstration teaching aid.
[0014] Secondly, the present invention also provides a method for using a demonstration teaching aid for basic flexibility teaching movements, applicable to the demonstration teaching aid for movements described in any of the above technical solutions, comprising:
[0015] Slide the foot fixing component toward the side away from the crossbar;
[0016] The user lifts their leg and secures their foot in the foot fixing slot, then begins the action demonstration;
[0017] Slide the foot fixing assembly toward the side closer to the crossbar until the second sub-part at least partially extends beyond the upper surface;
[0018] The second sub-section rotates relative to the first sub-section toward the crossbar, causing the user to retract their legs.
[0019] As an optional technical solution, the action demonstration teaching aid also includes an adjusting sleeve, which is rotatably fitted onto the crossbar, and the sliding device is installed on the outer wall of the adjusting sleeve; the adjusting sleeve is provided with a fastening screw, which passes through from the outside of the adjusting sleeve to the inside of the adjusting sleeve and is detachably abutted against the crossbar;
[0020] Before sliding the foot fixing assembly toward the side away from the crossbar, the method of use further includes:
[0021] Loosen the fastening screws and rotate the adjusting sleeve to change the height and angle of the foot fixing groove;
[0022] Tighten the fastening screw to secure the adjusting sleeve.
[0023] One or more technical solutions provided by this invention have at least the following technical effects or advantages:
[0024] This invention discloses a movement demonstration teaching aid for basic flexibility instruction and its usage method. The teaching aid includes a horizontal bar and a sliding device. The sliding device has an inclined slide and a foot fixing assembly. The inclined slide is connected to the horizontal bar, and its upper surface is inclined. The foot fixing assembly includes a first sub-part slidably connected to the inclined slide and a second sub-part hinged to the first sub-part, forming a foot fixing groove extending along the width of the horizontal bar. During movement demonstration, the foot fixing groove provides lateral support for the user's feet, facilitating accurate demonstration. When dismounting, the foot fixing assembly slides towards the horizontal bar, causing the second sub-part to extend beyond the inclined slide and rotate to open the foot fixing groove. The user can dismount by laterally moving their legs without needing to lift their legs again, thus significantly reducing the difficulty of dismounting. Attached Figure Description
[0025] The accompanying drawings, which are provided to further illustrate embodiments of the invention and constitute a part of this invention, are not intended to limit the scope of the invention.
[0026] Figure 1 This is a schematic diagram of the movement demonstration teaching aid for basic flexibility teaching in this invention;
[0027] Figure 2 for Figure 1 A cross-sectional schematic diagram of the sliding device;
[0028] Figure 3 for Figure 2 Cross-sectional view of the mid-foot fixation component;
[0029] Figure 4 This is a flowchart illustrating the usage of the teaching aids for demonstrating basic flexibility movements in this invention.
[0030] Explanation of reference numerals in the attached figures
[0031] Horizontal bar -1; Vertical bar -11; Multimedia screen -12;
[0032] Inclined slide-2; Upper surface-21; Transmission component-22; Screw sleeve-221; Slider-222; Connecting plate-223; Driving component-23; Internal space-24; Dust removal hole-25;
[0033] Foot fixing assembly -3; First sub-part -31; Second sub-part -32; Hinge shaft -33; Foot fixing groove -34; Pad -341;
[0034] Adjusting sleeve-4; Fastening screw-41;
[0035] Fixed part-51; Telescopic part-52; Support leg-53. Detailed Implementation
[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0037] In this invention, the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0038] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.
[0039] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium; or they can refer to internal communication between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.
[0040] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.
[0041] Example 1
[0042] like Figure 1 As shown in the figure, this embodiment provides a movement demonstration teaching aid for basic flexibility teaching, including a horizontal bar 1 and a sliding device. The sliding device includes an inclined slide 2 and a foot fixing assembly 3. The inclined slide 2 is connected to the crossbar 1 and includes an upper surface 21 facing away from the crossbar 1. The upper surface 21 gradually moves away from the crossbar 1 from one side to the other along the extension direction of the crossbar 1. The foot fixing assembly 3 includes a first sub-part 31 and a second sub-part 32. The first sub-part 31 is slidably connected to the upper surface 21 along the extension direction of the inclined slide 2. The second sub-part 32 is hinged to the first sub-part 31, and the axial direction of the hinge shaft 33 is at an acute angle or a right angle to the extension direction of the crossbar 1. The second sub-part 32 is closer to the crossbar 1 than the first sub-part 31. The side of the second sub-part 32 closest to the upper surface 21 is detachably abutted against the upper surface 21. The side of the foot fixing assembly 3 facing away from the crossbar 1 is recessed towards the crossbar 1 to form a foot fixing groove 34. The foot fixing groove 34 extends along the width direction of the crossbar 1 and is partly located in the first sub-part 31 and partly located in the second sub-part 32.
[0043] When beginning the demonstration, the foot fixing component 3 should be slid between the two sides of the upper surface 21 or to the side away from the crossbar 1. The user lifts their leg to place their foot in the foot fixing groove 34 for the demonstration. The foot fixing groove 34 provides lateral support for the user's foot, facilitating a complete, accurate, and convenient demonstration. When it is time to dismount, the foot fixing component 3 slides towards the side closer to the crossbar 1 until the second sub-part 32 at least partially extends beyond the upper surface 21. Since the upper surface 21 is inclined, the user's leg lift is reduced as the second sub-part 32 reaches this position, thus initially reducing the difficulty of dismounting. After the second sub-part 32 at least partially extends beyond the upper surface 21, since the upper surface 21 can no longer provide support for the second sub-part 32, the second sub-part 32 can rotate towards the crossbar 1, and the foot fixing groove 34 opens towards the side of the second sub-part 32. The user can then move their leg laterally to dismount without having to lift their leg again, further reducing the difficulty of dismounting.
[0044] Preferably, the side of the upper surface 21 closest to the crossbar 1 is not directly connected to the crossbar 1, but is connected to the crossbar 1 through a plane with a larger slope or even vertical, thereby providing sufficient space for the rotation of the second sub-part 32.
[0045] Example 2
[0046] like Figures 1-3 As shown, based on Embodiment 1, the sliding device further includes a driving assembly, which includes a transmission member 22 and a driving member 23. The transmission member 22 is disposed inside the inclined slide 2 along the extension direction of the upper surface 21, and the first sub-part 31 is connected to the transmission member 22. The driving member 23 is connected to the transmission member 22 and is used to drive the first sub-part 31 to slide through the transmission member 22. The driving assembly can drive the foot fixing assembly 3 to move, which helps to improve the convenience of using the action demonstration teaching aid.
[0047] Preferably, the transmission component 22 is a lead screw module, and the drive component 23 is a stepper motor or a servo motor. The lead screw module has a self-locking function, which can keep the foot fixing component 3 stable during user demonstrations. In addition, the lead screw module has a slow adjustment speed and high precision, which helps to improve the stability of adjustment and ensure user safety. It is easy to understand that, in addition to the lead screw itself, the lead screw module should also include components such as a screw sleeve 221, a slider 222, and a connecting plate 223. The upper surface 21 should also have slots corresponding to the movement trajectory of the connecting plate 223 and the first sub-part 31.
[0048] In addition, the drive components can be controlled by setting control switches on the action demonstration teaching aids, and can also be set up with communication modules to connect to multimedia devices such as remote controls or smartphones for control.
[0049] As an optional implementation, the inclined slide 2 has an internal space 24, which is inclined relative to the upper surface 21. The transmission component 22 is disposed in the internal space 24 along the extension direction of the upper surface 21, and the driving component 23 is disposed on the side of the internal space 24 away from the crossbar 1. The inclined slide 2 is also provided with a cleaning hole 25, which extends from the side of the internal space 24 near the crossbar 1 to the outside of the inclined slide 2. Clean water or the like can be injected into the internal space 24 through the cleaning hole 25 to clean the dust in the internal space 24. Since the internal space 24 is inclined and the driving component 23 is disposed on the side of the internal space 24 away from the crossbar 1, when clean water is injected through the cleaning hole 25, the clean water is less likely to come into contact with the driving component 23, which is beneficial to protecting the driving component 23.
[0050] In addition, the area in the internal space 24 where the drive unit 23 is installed can be relatively enclosed compared to other areas, so that only the output shaft of the drive unit 23 is exposed. Furthermore, sealing elements such as transparent covers and sealing rings can be provided to reduce the possibility of clean water coming into contact with the drive unit 23.
[0051] In addition, the internal space 24 can also be equipped with a separate heat dissipation duct to connect the area where the drive unit 23 is located, so as to provide heat dissipation for the drive unit 23.
[0052] As an optional implementation, an adjusting sleeve 4 is also included. The adjusting sleeve 4 is rotatably fitted onto the crossbar 1, and a sliding device is provided on the outer wall of the adjusting sleeve 4. A fastening screw 41 is provided on the adjusting sleeve 4, which passes through the outer wall of the adjusting sleeve 4 to the inside of the adjusting sleeve 4 and is detachably abutted against the crossbar 1. By rotating the adjusting sleeve 4, the height and pitch angle of the foot fixing component 3 can be changed, which is beneficial for matching users of different heights and the demonstration needs of different movements.
[0053] As an optional implementation, a support device is also included, comprising a base to which the crossbar 1 is connected; the base is provided with multiple support legs 53 for supporting the base. By using the base and support legs 53 to support the crossbar 1, the crossbar 1 does not need to be connected to a wall support, and when the user is demonstrating the action, the observer can observe from around the user, which helps to improve the demonstration effect.
[0054] The outer wall of the adjusting sleeve 4 can be provided with a cross-shaped or T-shaped slot, one of which is a slot along the axial direction of the adjusting sleeve 4 and the other is a slot along the circumference of the adjusting sleeve 4. At least one end of the slot along the axial direction of the adjusting sleeve 4 passes through the adjusting sleeve 4. In this way, when the adjusting sleeve 4 is fitted into the crossbar 1 along the axial direction, the connection between the base and the crossbar 1 can slide in the slot along the axial direction; when the adjusting sleeve 4 rotates in the circumference direction, the connection between the base and the crossbar 1 can slide in the slot along the circumference direction of the adjusting sleeve 4.
[0055] It should also be noted that the support legs 53 can be arranged at equal intervals along the perimeter of the base, or they can be arranged along the bottom edge through the isosceles triangle of the base, thus leaving standing space for the user.
[0056] As an optional implementation, the base includes a telescopic rod, which includes a fixed part 51 and a telescopic part 52. A support leg 53 is connected to the fixed part 51, and the telescopic part 52 is connected to the crossbar 1. The height of the crossbar 1 can be adjusted via the telescopic rod to accommodate users of different heights.
[0057] It should be noted that the telescopic rod can be a self-powered telescopic element such as a hydraulic rod or electric cylinder, or it can be a non-powered telescopic assembly with an outer cylinder fitted onto the core rod / tube. It should be noted that when using the latter, fixing elements such as pins and bolts should be installed to keep the telescopic rod at its extended length.
[0058] As an optional implementation, the crossbar 1 is provided with a vertical pole 11, which extends away from the base, and a multimedia screen 12 is provided at the end of the vertical pole 11. The multimedia screen 12 can play demonstration videos, text or voice explanations while the action demonstration is being performed, which helps to improve the effect of the action demonstration.
[0059] In addition, a visual recognition module can be integrated on the multimedia screen 12. When the user is a student, the visual module can identify whether the user's movements are standardized, and emit sound or play video materials of the corresponding standardized movements to prompt the user. Preferably, the multimedia screen 12 can also integrate multiple physical buttons, each corresponding to a different training movement. When a physical button is pressed, the multimedia screen 12 automatically plays the video of the corresponding training movement.
[0060] Furthermore, the control of the drive component and the telescopic rod can also be integrated into the multimedia screen 12. In a teaching scenario, the teacher can select individual students to use the action demonstration teaching aids of this embodiment for action training and demonstrate it to other students as a teaching example. At this time, the teacher can control the drive component and the telescopic rod through the multimedia screen 12 to match the students' action needs.
[0061] As an optional implementation, a soft pad 341 is provided inside the foot fixing groove 34. The soft pad 341 helps to improve the comfort of using the action demonstration teaching aid.
[0062] Example 3
[0063] like Figure 4 As shown, this embodiment provides a method for using a demonstration teaching aid for basic flexibility teaching movements. The demonstration teaching aid, applicable to any of the above embodiments, includes:
[0064] S1: Slide the foot fixing component 3 toward the side away from the crossbar 1;
[0065] S2: The user lifts their leg and fixes their foot in the foot fixing slot 34, and begins the action demonstration;
[0066] S3: Slide the foot fixing component 3 toward the side closer to the crossbar 1 until the second sub-part 32 at least partially extends beyond the upper surface 21;
[0067] S4: The second sub-part 32 rotates relative to the first sub-part 31 toward the crossbar 1, and the user retracts his / her legs.
[0068] As an optional implementation, the action demonstration teaching aid also includes an adjusting sleeve 4, which is rotatably sleeved on the crossbar 1, and a sliding device is installed on the outer wall of the adjusting sleeve 4; the adjusting sleeve 4 is provided with a fastening screw 41, which passes through from the outside of the adjusting sleeve 4 to the inside of the adjusting sleeve 4 and is detachably abutted against the crossbar 1.
[0069] Before step S1, the method also includes:
[0070] S101: Loosen the fastening screw 41 and rotate the adjusting sleeve 4 to change the height and tilt angle of the foot fixing groove 34;
[0071] S102: Tighten the fastening screw 41 to secure the adjusting sleeve 4.
[0072] As an optional implementation, the multimedia screen 12 integrates a visual recognition module, which is set corresponding to the horizontal bar 1. The storage module of the multimedia screen 12 stores images of various training actions and audio explanations of the key points of the training actions; step S2 includes:
[0073] S201: Users use action demonstration teaching aids to train actions;
[0074] S202: The visual recognition module identifies the user's training actions and matches them with all training action images stored in the storage module to find the closest training action image.
[0075] S203: Compare the user's training movements with the image of the closest training movement to obtain a similarity parameter;
[0076] S204: When the similarity parameter is below the threshold, the multimedia screen 12 emits a prompt sound and plays the closest training action video and an explanation of the key points of the training action. The preferred range of the threshold is 50%-90%.
[0077] The visual recognition module can employ existing motion recognition algorithms, such as OpenPose, VideoPose3D, or PoseC3D.
[0078] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.
[0079] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.
Claims
1. A demonstration teaching aid for basic flexibility instruction, characterized in that, include: crossbar; A sliding device includes an inclined slide and a foot fixing assembly. The inclined slide is connected to the crossbar and includes an upper surface facing away from the crossbar, the upper surface gradually moving away from the crossbar from one side to the other along the extension direction of the crossbar. The foot fixing assembly includes a first sub-part and a second sub-part. The first sub-part is slidably connected to the upper surface along the extension direction of the inclined slide, and the second sub-part is hinged to the first sub-part, with the axial direction of the hinge axis forming an acute angle or a right angle with the extension direction of the crossbar. The second sub-part is closer to the crossbar than the first sub-part, and the side of the second sub-part closer to the upper surface is detachably abutting against the upper surface. The side of the foot fixing assembly facing away from the crossbar is recessed towards the crossbar to form a foot fixing groove, the foot fixing groove extending along the width direction of the crossbar, and partly located in the first sub-part and partly located in the second sub-part. When the foot fixing assembly slides to the side of the upper surface near the crossbar, the second sub-part extends at least partially beyond the upper surface, so that the upper surface no longer provides support for the second sub-part; the side of the upper surface near the crossbar is connected to the crossbar by a plane with a larger slope or a vertical plane, thereby providing rotation space for the second sub-part.
2. The movement demonstration teaching aid for basic flexibility instruction according to claim 1, characterized in that, The sliding device further includes a driving assembly, which includes a transmission component and a driving component. The transmission component is disposed inside the inclined slide table along the extension direction of the upper surface, and the first sub-part is connected to the transmission component. The driving component is connected to the transmission component and is used to drive the first sub-part to slide through the transmission component.
3. The movement demonstration teaching aid for basic flexibility instruction according to claim 2, characterized in that, The inclined slide has an internal space, which is inclined to the upper surface. The transmission component is located in the internal space along the extension direction of the upper surface, and the driving component is located on the side of the internal space away from the crossbar. The inclined slide is also provided with a cleaning hole, which extends from the side of the internal space near the crossbar to the outside of the inclined slide.
4. The movement demonstration teaching aid for basic flexibility instruction according to claim 1, characterized in that, It also includes an adjusting sleeve, which is rotatably fitted onto the crossbar, and the sliding device is disposed on the outer wall of the adjusting sleeve; the adjusting sleeve is provided with a fastening screw, which passes through the outer wall of the adjusting sleeve to the inside of the adjusting sleeve and is detachably abutted against the crossbar.
5. The movement demonstration teaching aid for basic flexibility instruction according to claim 1, characterized in that, It also includes a support device, which includes a base and the crossbar is connected to the base; the base is provided with a plurality of support legs for supporting the base.
6. The movement demonstration teaching aid for basic flexibility instruction according to claim 5, characterized in that, The base includes a telescopic rod, which includes a fixed part and a telescopic part. The support leg is connected to the fixed part, and the telescopic part is connected to the crossbar.
7. The movement demonstration teaching aid for basic flexibility instruction according to claim 5, characterized in that, A vertical pole is provided on the crossbar, the vertical pole extends away from the base, and a multimedia screen is provided at the end of the vertical pole.
8. The movement demonstration teaching aid for basic flexibility instruction according to claim 1, characterized in that, The foot fixing groove is equipped with a soft pad.
9. A method of using a demonstration teaching aid for basic flexibility exercises, characterized in that, The action demonstration teaching aid as described in any one of claims 1-8 includes: Slide the foot fixing component toward the side away from the crossbar; The user lifts their leg and secures their foot in the foot fixing slot, then begins the action demonstration; Slide the foot fixing assembly toward the side closer to the crossbar until the second sub-part at least partially extends beyond the upper surface; The second sub-section rotates relative to the first sub-section toward the crossbar, causing the user to retract their legs.
10. The method of using the demonstration teaching aid for basic flexibility teaching movements according to claim 9, characterized in that, The action demonstration teaching aid also includes an adjusting sleeve, which is rotatably fitted onto the crossbar, and the sliding device is installed on the outer wall of the adjusting sleeve; the adjusting sleeve is provided with a fastening screw, which passes through from the outside of the adjusting sleeve to the inside of the adjusting sleeve and is detachably abutted against the crossbar; Before sliding the foot fixing assembly toward the side away from the crossbar, the method of use further includes: Loosen the fastening screws and rotate the adjusting sleeve to change the height and angle of the foot fixing groove; Tighten the fastening screw to secure the adjusting sleeve.