Protective frame for assisting dance learner in keeping highly difficult posture

Abstract

The invention relates to the technical field of dance, and particularly discloses a protection frame for assisting a dance learner in keeping a highly difficult posture, which comprises a base, and a handrail is fixedly connected to the outer surface of the upper end of the base; the limiting part is arranged on the outer surface of the upper end of the base and can limit and fix the legs of the user, the gravity center of the user is prevented from shifting, the limiting part is arranged on the base to fix the legs when the dance learner conducts leg holding training, the two hands of the learner can be liberated, and the limiting part and the limiting part are both used for leg holding; meanwhile, errors can be conveniently corrected when the learner holds the legs, the freedom degree of the first support is increased through the design of a first ball groove and a first hinge ball, the user can find the gravity center when holding the legs by himself / herself, and muscle memory of the body can be conveniently formed.

Description

Technical Field

[0001] The invention relates to the field of dance technology, specifically a protective frame for assisting dance learners in maintaining difficult postures. Background Technology

[0002] Dance is a performing art that uses the body to perform various elegant or difficult movements, and it is one of the eight arts. It generally relies on music and other props, using rhythmic movements as its primary means of expression. Dance itself has diverse social meanings and functions, including exercise, social interaction, and ritual. In the early stages of human civilization, dance was extremely important in rituals, ceremonies, celebrations, and entertainment.

[0003] High-difficulty dance moves mainly include spins, forward and backward flips, carp backflips, and somersaults. When practicing the leg-hug turn in the tuck turn, students often need to practice in multiple steps. First, they need to do barre leg-hug training, then barre leg-hug heel-stand training, and then barre leg-hug half-turn training. After completing the step-by-step training, they can try the full leg-hug turn. Since the step-by-step training method requires holding onto the dance barre, although it can ensure the safety of the training, students do not easily perceive their center of gravity position in the leg-hug position because of the hand support, which makes it difficult for the muscles to quickly form muscle memory.

[0004] Therefore, we propose a protective frame to help dance learners maintain difficult postures. Summary of the Invention

[0005] The purpose of this invention is to provide a protective frame to help dance learners maintain difficult postures, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the invention provides the following technical solution: a protective frame for assisting dance learners in maintaining difficult postures, including a base, with a handrail fixedly connected to the upper outer surface of the base;

[0007] The limiting part is located on the upper outer surface of the base and can limit and fix the user's legs to prevent the user's center of gravity from shifting.

[0008] Preferably, the limiting part includes a bracket one, which is fixedly connected to the upper outer surface of the base. A positioning block is fixedly connected to the front outer surface of the bracket one, and a threaded rod passes through the positioning block. The threaded rod and the positioning block are rotatably connected by a bearing. The bracket one has an arc-shaped structure design, and a bracket two is provided on the inner side of the bracket one above the base. A fixing block is provided at the corresponding position of the bracket two and the positioning block. The threaded rod is threadedly connected to the fixing block.

[0009] Preferably, a capsule is fixedly connected to the inner side of the arc surface of the first and second supports, and an electrorheological fluid is injected into the capsule.

[0010] Preferably, a telescopic seat is fixedly connected to the outer side of the arc surface of the bracket, a telescopic groove is opened inside the telescopic seat, a telescopic rod is slidably connected inside the telescopic groove, an overflow hole is opened at the bottom of the telescopic rod, the bottom of the telescopic rod is in contact with the inner surface of the telescopic groove, a strap is fixedly connected to the upper end of the telescopic rod, and electrorheological fluid is also injected into the strap and the telescopic groove.

[0011] Preferably, the limiting part further includes a connecting plate, which is fixedly connected to the lower outer surface of the bracket. A ball sleeve is fixedly connected to the lower end of the connecting plate. A ball groove is opened inside the ball sleeve, and a hinge ball is embedded inside the ball groove. A fixing rod is fixedly connected to the lower end of the hinge ball, and the fixing rod is fixedly connected to the base. A reminder component is provided between the base and the hinge ball.

[0012] Preferably, a slider is fixedly connected to the inner surface of the ball groove, and a groove is opened at the corresponding position of the hinge ball and the slider. The slider is embedded in the groove, and the end of the slider away from the ball sleeve is in contact with the inner surface of the groove. There are four sets of sliders and grooves, and they are designed in a cross shape.

[0013] Preferably, a traction rope is fixedly connected to the lower outer surface of the connecting plate, a traction groove is opened at the position corresponding to the traction rope on the base, the traction rope is located inside the traction groove, a sliding groove is opened at the end of the traction groove away from the connecting plate, a reset component is provided inside the sliding groove, and there are four sets of traction ropes, each corresponding to a sliding groove.

[0014] Preferably, the reminder component includes a trigger plate, which is fixedly connected to the annular outer surface of the fixed rod. An embedding groove is provided at the upper end of the trigger plate, and a switch plate is slidably connected inside the embedding groove. Both the switch plate and the embedding groove are annular structures. A reset spring is fixedly connected to the upper outer surface of the trigger plate, and a pressing plate is fixedly connected to the upper end of the reset spring. The pressing plate is slidably connected to the outer surface of the fixed rod. A ball groove encloses a hinge ball with an area of ​​more than half. The lower edge of the pressing plate has a chamfered structure design.

[0015] Preferably, the reset assembly includes a sliding block that slides inside a sliding groove. A guide rod is fixedly connected to the end of the sliding groove away from the traction rope. A hinge ball is fixedly connected to the end of the guide rod near the traction rope. A reset plate is sleeved on the annular outer surface of the hinge ball. A ball groove is formed on the reset plate at a position corresponding to the hinge ball. The end of the traction rope away from the connecting plate is fixedly connected to the reset plate.

[0016] Preferably, a reserved opening is provided at the upper end of the inner surface of the sliding groove, and the support rod is rotatably connected inside the reserved opening through a rotating shaft. The support rod extends into the sliding groove and its end contacts the sliding block. A guide groove is provided at the corresponding position of the sliding block and the guide rod, and the guide rod is located inside the guide groove.

[0017] The invention has at least the following beneficial effects:

[0018] By setting a limiting part on the base to fix the legs when dance learners do leg-hugging exercises, the learners' hands can be freed up to use for leg-hugging. At the same time, it is convenient for teachers to correct mistakes when learners hug their legs. The design of ball groove 1 and hinge ball 1 increases the degree of freedom of the support 1, allowing users to find their own center of gravity when hugging their legs, which is conducive to the formation of muscle memory. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of the invention;

[0020] Figure 2 A schematic diagram of the telescopic rod deployment structure for the invention;

[0021] Figure 3 Schematic diagrams of the structure of the first and second supports of the invention;

[0022] Figure 4 An exploded structural diagram of the limiting part of the invention;

[0023] Figure 5 A cross-sectional structural diagram of the invention's base;

[0024] Figure 6 For invention Figure 5 Enlarged structural diagram at point A in the middle;

[0025] Figure 7 A schematic diagram of the structure of the invention reminder component;

[0026] Figure 8 A cross-sectional structural diagram of the invention ball sleeve;

[0027] Figure 9 An exploded structural diagram of the invention reminder component;

[0028] Figure 10 This is a schematic diagram of the structure of the invention's reset component;

[0029] Figure 11 An exploded view of the invention's reset assembly;

[0030] Figure 12 For invention Figure 11 Enlarged structural diagram at point C.

[0031] In the diagram: 1. Base; 2. Limiting part; 20. Bracket 1; 21. Bracket 2; 22. Bag body; 23. Fixing block; 24. Positioning block; 25. Threaded rod; 26. Telescopic seat; 260. Telescopic groove; 261. Telescopic rod; 262. Strap; 264. Overflow hole; 27. Connecting plate; 28. Ball sleeve; 281. Ball groove 1; 29. ​​Fixing rod; 3. Reminder component; 30. Trigger plate; 31. Switch plate; 32. Squeezing plate; 33. Hinge ball 1; 34. Slide groove; 35. Slider; 36. Return spring; 4. Return component; 40. Sliding groove; 41. Sliding block; 42. Reserved opening; 43. Handrail; 45. Guide rod; 46. Return plate; 460. Ball groove 2; 461. Hinge ball 2; 462. Guide groove; 47. Reciprocating spring; 48. Traction groove; 49. Traction rope. Detailed Implementation

[0032] The technical solutions of the embodiments of the invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the invention.

[0033] Please see Figure 1-12 The invention provides a technical solution:

[0034] Example 1,

[0035] A protective frame for assisting dance learners in maintaining difficult postures includes a base 1, with a handrail 43 fixedly connected to the upper outer surface of the base 1 to provide support in an emergency. The base 1 uses a large-area base plate made of metal to ensure weight and provide support.

[0036] Limiting part 2 is located on the upper outer surface of the base 1. It can limit and fix the user's legs to prevent the user's center of gravity from shifting. This is beneficial for dance learners to perform leg-hugging training without hand support. By fixing the legs, it prevents the user from falling due to the shift of the center of gravity. It can increase the duration of the learner's leg-hugging, thereby facilitating the rapid formation of muscle memory.

[0037] The limiting part 2 includes a bracket 20, which is fixedly connected to the upper outer surface of the base 1. A positioning block 24 is fixedly connected to the front outer surface of the bracket 20. A threaded rod 25 passes through the inside of the positioning block 24. The threaded rod 25 and the positioning block 24 are rotatably connected by a bearing. The bracket 20 has an arc-shaped structure design. A bracket 21 is provided on the inner side of the bracket 20 above the base 1. A fixing block 23 is provided at the corresponding position of the bracket 21 and the positioning block 24. The threaded rod 25 is threadedly connected to the fixing block 23.

[0038] The first bracket 20 is fixed to the base plate to secure the user's legs. The user can change the distance between the second bracket 21 and the fixing block 23 and the positioning block by rotating the threaded rod 25 to clamp and fix the user's legs. There are two sets of threaded rods 25, and the threaded rods 25, the positioning block 24 and the fixing block 23 are fixed in opposite directions. When using it, the user needs to use both hands to rotate simultaneously in opposite directions to adjust the distance between the first bracket 20 and the second bracket 21, which improves the stability of the first bracket 20 and the second bracket 21 after clamping. With the above solution, the user does not need to hold the handle surface for a long time for support, which helps the user find their center of gravity without using their hands and allows the muscles to form muscle memory more quickly.

[0039] A bladder 22 is fixedly connected to the inner side of the arc surface of the first bracket 20 and the second bracket 21. The bladder 22 is filled with electrorheological fluid. When the first bracket 20 and the second bracket 21 clamp the user's leg, the bladder 22 will deform. The electrorheological fluid inside flows along the deformed bladder 22 to the corresponding position. Then, it is energized to make it solid, which improves the adhesion of the first bracket 20 and the second bracket 21 to the user's leg, further increases the fixation effect, and prevents the user from falling.

[0040] A telescopic seat 26 is fixedly connected to the outer side of the arc surface of the bracket 20. The telescopic seat 26 has a telescopic groove 260 inside. A telescopic rod 261 is slidably connected inside the telescopic groove 260. An overflow hole 264 is opened at the bottom of the telescopic rod 261. The bottom of the telescopic rod 261 is in contact with the inner surface of the telescopic groove 260. A strap 262 is fixedly connected to the upper end of the telescopic rod 261. Electrorheological fluid is also injected into the strap 262 and the telescopic groove 260.

[0041] To prevent the user's thigh from bending and causing the aforementioned structure to lose its protective and limiting capabilities, the user, during use, spreads the strap 262, extends the telescopic rod 261, and places the strap 262 over the thigh. During this process, the electrorheological fluid inside the telescopic groove 260 flows along the overflow groove between the telescopic rod 261 and the telescopic groove 260. The strap 262 has a cavity inside, where the electrorheological fluid is located. When not energized, it flows along the strap 262 without air bubbles. When it reaches the designated position, energizing the strap 262 and the electrorheological fluid inside the telescopic groove 260 fixes them in a fixed state, effectively supporting the user's thigh and further improving the stability of the device. This also helps the user's legs quickly develop muscle memory.

[0042] According to the above embodiments, Embodiment Two

[0043] The limiting part 2 also includes a connecting plate 27, which is fixedly connected to the lower outer surface of the bracket 20. A ball sleeve 28 is fixedly connected to the lower end of the connecting plate 27. A ball groove 281 is opened inside the ball sleeve 28. A hinge ball 33 is embedded inside the ball groove 281. A fixing rod 29 is fixedly connected to the lower end of the hinge ball 33. The fixing rod 29 is fixedly connected to the base 1. A reminder component 3 is provided between the base 1 and the hinge ball 33.

[0044] Unlike Embodiment 1, the support 20 is movably connected to the base 1 via a hinge ball 33 and a ball groove 281. There is friction between the ball groove and the hinge ball 33, but the hinge ball 33 and the ball groove 281 are designed with a maximum range of motion. When using it, the user can perform leg-hugging training based on their own judgment of the center of gravity. When the center of gravity changes, the user will tilt at a certain angle, but this will be limited by the maximum rotation range of the hinge ball 33 and the ball groove 281. When the maximum range is reached, the user will not continue to tilt. The user can regain the center of gravity position through their own strength and continue to maintain the leg-hugging posture, which increases the learner's muscle memory of the center of gravity position and plays a further training role for the learner.

[0045] A slider 35 is fixedly connected to the inner surface of the ball groove 281. A groove 34 is opened at the corresponding position of the hinge ball 33 and the slider 35. The slider 35 is embedded in the groove 34. The end of the slider 35 away from the ball sleeve 28 is in contact with the inner surface of the groove 34. There are four sets of sliders 35 and grooves 34, and they are designed in a cross shape to restrict the rotation direction of the ball groove 281, so that it can only rotate in the forward, backward and left and right directions. When tilting forward and backward, two sets of sliders 35 rotate, and the other two sets rotate along the groove 34. When tilting left and right, the other two sets of sliders 35 rotate, and the two sets of sliders 35 rotate along the groove 34. This reduces the degree of freedom of the hinge ball 33 and the ball groove 281, making it easier for users to learn.

[0046] A traction rope 49 is fixedly connected to the lower outer surface of the connecting plate 27. A traction groove 48 is opened at the position corresponding to the traction rope 49 on the base 1. The traction rope 49 is located inside the traction groove 48. A sliding groove 40 is opened at the end of the traction groove 48 away from the connecting plate 27. A reset component 4 is provided inside the sliding groove 40. There are four sets of traction ropes 49, which correspond to the sliding groove 34 respectively, to ensure that the slider 35 can react quickly when it is pulled.

[0047] When a learner tilts during training, the tilt angle is transmitted to the reset component 4 via the traction rope 49. The reset component 4 is then controlled by the learner (either by themselves or by the instructor) to slide inside the sliding groove 40 to reset the limiting part 2, making it easier for the user to quickly find the center of gravity.

[0048] The reminder component 3 includes a trigger plate 30, which is fixedly connected to the annular outer surface of the fixed rod 29. The upper end of the trigger plate 30 has an embedding groove, and a switch plate 31 is slidably connected inside the embedding groove. Both the switch plate 31 and the embedding groove are annular structures. A return spring 36 is fixedly connected to the upper outer surface of the trigger plate 30. The upper end of the return spring 36 is fixedly connected to a pressing plate 32, which is slidably connected to the outer surface of the fixed rod 29. A ball groove 281 encloses a hinge ball 33 with an area of ​​more than half. The lower edge of the pressing plate 32 has a chamfered structure design. When the switch plate 31 is pressed, the pressure can be evenly distributed, reducing the pressure on the switch plate 31.

[0049] When the user tilts the device, the ball sleeve 28 will start to rotate around the center of the hinge ball 33. When the rotation angle reaches its maximum, the ball sleeve 28 will press the compression plate 32, causing the compression plate 32 to move along the fixed rod 29 to compress the return spring 36 and move towards the switch plate 31. After the switch plate 31 is compressed, the buzzer will be activated to remind the user that a relatively serious tilt has occurred, so that the user knows whether adjustment is needed.

[0050] The reset assembly 4 includes a sliding block 41, which slides inside the sliding groove 40. A guide rod 45 is fixedly connected to the end of the sliding groove 40 away from the traction rope 49. A hinge ball 461 is fixedly connected to the end of the guide rod 45 near the traction rope 49. A reset plate 46 is sleeved on the annular outer surface of the hinge ball 461. A ball groove 460 is opened at the corresponding position of the reset plate 46 and the hinge ball 461. The end of the traction rope 49 away from the connecting plate 27 is fixedly connected to the reset plate 46.

[0051] When the user tilts, the ball sleeve 28 and the connecting plate 27 rotate, thereby pulling the reset plate 46 through the traction rope 49 so that it rotates around the center of the hinge ball 461 and compresses the reciprocating spring 47 on the traction rope 49. The reciprocating spring 47 is fixedly connected between the sliding block 41 and the sliding groove 40. When reset is required, the user or the supervising teacher can directly push the sliding block 41 along the sliding groove 40 towards the reset plate 46 by pushing the handle 43, thereby squeezing the reset plate 46. The guide rod 45 is set to position the center of the reset plate 46 so that it can reset around the center of the hinge ball 461 when squeezed by the sliding block 41. The traction rope 49 pulls the connecting plate 27 and drives the limiting part 2 to reset as a whole.

[0052] A reserved opening 42 is provided at the upper end of the inner surface of the sliding groove 40. The support rod 43 is rotatably connected inside the reserved opening 42 via a rotating shaft. The support rod 43 extends into the sliding groove 40 and its end contacts the sliding block 41. A guide groove 462 is provided at the corresponding position of the sliding block 41 and the guide rod 45. The guide rod 45 is located inside the guide groove 462. The user pushes the support rod 43 to reset the limiting part 2. The support rod 43 rotates inside the reserved opening 42. The lever principle is used to increase the driving force on the sliding block 41, so that the reset of the limiting part 2 is more timely. The diameter of the guide groove 462 is larger than the diameter of the hinge ball 461.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective frame for assisting dance learners in maintaining difficult postures, comprising a base (1), characterized in that: A support rod (43) is fixedly connected to the outer surface of the upper end of the base (1); The limiting part (2) is provided on the upper outer surface of the base (1) and can limit and fix the user's legs to prevent the user's center of gravity from shifting.

2. The protective frame for assisting dance learners in maintaining difficult postures according to claim 1, characterized in that: The limiting part (2) includes a bracket (20), which is fixedly connected to the upper outer surface of the base (1). A positioning block (24) is fixedly connected to the front outer surface of the bracket (20). A threaded rod (25) passes through the positioning block (24). The threaded rod (25) and the positioning block (24) are rotatably connected by a bearing. The bracket (20) has an arc-shaped structure design. A bracket (21) is provided on the inner side of the bracket (20) above the base (1). A fixing block (23) is provided at the corresponding position of the bracket (21) and the positioning block (24). The threaded rod (25) and the fixing block (23) are threadedly connected.

3. The protective frame for assisting dance learners in maintaining difficult postures according to claim 2, characterized in that: The inner side of the arc surface of the first bracket (20) and the second bracket (21) is fixedly connected to a bladder (22), and the bladder (22) is filled with electrorheological fluid.

4. The protective frame for assisting dance learners in maintaining difficult postures according to claim 2, characterized in that: A telescopic seat (26) is fixedly connected to the outer side of the arc surface of the bracket (20). A telescopic groove (260) is provided inside the telescopic seat (26). A telescopic rod (261) is slidably connected inside the telescopic groove (260). An overflow hole (264) is provided at the bottom of the telescopic rod (261). The bottom of the telescopic rod (261) is in contact with the inner surface of the telescopic groove (260). A strap (262) is fixedly connected to the upper end of the telescopic rod (261). Electrorheological fluid is also injected into the strap (262) and the telescopic groove (260).

5. The protective frame for assisting dance learners in maintaining difficult postures according to claim 2, characterized in that: The limiting part (2) also includes a connecting plate (27), which is fixedly connected to the lower outer surface of the bracket (20). A ball sleeve (28) is fixedly connected to the lower end of the connecting plate (27). A ball groove (281) is opened inside the ball sleeve (281). A hinge ball (33) is embedded inside the ball groove (281). A fixing rod (29) is fixedly connected to the lower end of the hinge ball (33), and the fixing rod (29) is fixedly connected to the base (1). A reminder component (3) is provided between the base (1) and the hinge ball (33).

6. The protective frame for assisting dance learners in maintaining difficult postures according to claim 5, characterized in that: A slider (35) is fixedly connected to the inner surface of the ball groove (281). A groove (34) is opened at the corresponding position of the hinge ball (33) and the slider (35). The slider (35) is embedded in the groove (34). The end of the slider (35) away from the ball sleeve (28) is in contact with the inner surface of the groove (34). There are four sets of sliders (35) and grooves (34), and they are designed in a cross shape.

7. The protective frame for assisting dance learners in maintaining difficult postures according to claim 6, characterized in that: A traction rope (49) is fixedly connected to the lower outer surface of the connecting plate (27). A traction groove (48) is provided on the base (1) at the position corresponding to the traction rope (49). The traction rope (49) is located inside the traction groove (48). A sliding groove (40) is provided at the end of the traction groove (48) away from the connecting plate (27). A reset component (4) is provided inside the sliding groove (40). There are four sets of traction ropes (49), each corresponding to a sliding groove (34).

8. The protective frame for assisting dance learners in maintaining difficult postures according to claim 5, characterized in that: The reminder component (3) includes a trigger plate (30), which is fixedly connected to the annular outer surface of the fixing rod (29). The upper end of the trigger plate (30) is provided with an embedding groove, and a switch plate (31) is slidably connected inside the embedding groove. Both the switch plate (31) and the embedding groove are annular structures. A reset spring (36) is fixedly connected to the upper outer surface of the trigger plate (30), and a pressing plate (32) is fixedly connected to the upper end of the reset spring (36). The pressing plate (32) is slidably connected to the outer surface of the fixing rod (29). The ball groove (281) encloses a hinge ball (33) with an area of ​​more than half. The lower edge of the pressing plate (32) is chamfered.

9. The protective frame for assisting dance learners in maintaining difficult postures according to claim 7, characterized in that: The reset assembly (4) includes a sliding block (41) that slides inside a sliding groove (40). A guide rod (45) is fixedly connected to one end of the sliding groove (40) away from the traction rope (49). A hinge ball (461) is fixedly connected to one end of the guide rod (45) near the traction rope (49). A reset plate (46) is sleeved on the annular outer surface of the hinge ball (461). A ball groove (460) is opened at the corresponding position of the reset plate (46) and the hinge ball (461). The end of the traction rope (49) away from the connecting plate (27) is fixedly connected to the reset plate (46).

10. The protective frame for assisting dance learners in maintaining difficult postures according to claim 9, characterized in that: The sliding groove (40) has a reserved opening (42) at the upper end of its inner surface. The support rod (43) is rotatably connected inside the reserved opening (42) by a rotating shaft. The support rod (43) extends into the sliding groove (40) and its end contacts the sliding block (41). The sliding block (41) and the guide rod (45) have corresponding positions with a guide groove (462). The guide rod (45) is located inside the guide groove (462).

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