Stretching assist device

Abstract

The invention discloses a stretching assist device, and relates to the technical field of yoga exercise assistion.The stretching assist device comprises a base, leg stretching assemblies are arranged on the two sides of a fixing seat, opening and closing assemblies and reciprocating assemblies are arranged at the bottoms of the leg stretching assemblies, leg massage assemblies are arranged above the reciprocating assemblies, and emergency rebound assemblies are arranged on the opening and closing assemblies; the leg placing frame is arranged at the circle center of the arc-shaped guide rail, so that the effect of driving the two legs of a yoga stretching trainer to open to the two sides of the body for stretching exercise is achieved, and injuries caused by excessive stretching under the action of external force are avoided; by means of the clamping plate capable of sliding up and down, the situation that the yoga stretching exerciser is injured due to continuous stretching is avoided, the leg placing frame rebounds to a small extent from the position where the yoga stretching exerciser feels uncomfortable, and the situation that the yoga stretching exerciser cannot move after the stretching assistor stops is prevented.

Description

Technical Field

[0001] This invention relates to the field of yoga practice assistance technology, and more specifically, to a stretching aid. Background Technology

[0002] Many people choose yoga as a way to practice in their spare time, cultivating their mind and improving their flexibility. Before or after yoga practice, it is necessary to stretch and relax the muscles and joints of the legs to improve muscle flexibility, make joints more flexible, and reduce the risk of injury. After yoga practice, it is necessary to stretch and massage to relax the muscles. The legs are a high-frequency exercise area during stretching exercises. Yoga stretching exercises are divided into standing and sitting postures.

[0003] Currently, some practitioners use equipment and others to assist with seated leg-opening stretches. However, when using equipment or others to assist with leg-opening stretches, it is impossible to immediately bring the legs back together according to the user's limits to alleviate the pain and ligament damage caused by overstretching. At the same time, it is impossible to assist users who have overstretched and whose legs are restricted from closing, so as to avoid situations where practitioners are unable to close their legs on their own due to pain after overstretching.

[0004] Meanwhile, leg muscles need to be massaged after yoga practice to relieve muscle stiffness and soreness. However, existing massage methods use separate massage equipment or manual massage to relieve these issues. It is impossible to combine stretching and leg muscle massage at the same time during leg opening stretching, which cannot quickly relieve the relaxation of the leg muscles of yoga practitioners. Moreover, it is also necessary to relax tense leg muscles before yoga practice to improve leg flexibility and reduce the risk of injury during stretching exercises.

[0005] To solve the above problems, the inventors proposed a stretching aid. Summary of the Invention

[0006] To solve the above-mentioned technical problems, a stretching aid is provided, and this technical solution addresses the issues raised in the background section.

[0007] To achieve the above objectives, the present invention can be implemented using the following technical solutions:

[0008] The present invention provides a stretching aid, comprising: a base, a fixed seat fixedly connected to the top of the base, leg stretching components arranged on both sides of the fixed seat, an opening and closing component and a reciprocating component arranged at the bottom of the leg stretching components, a leg massage component arranged above the reciprocating component, and an emergency rebound component arranged on the opening and closing component.

[0009] The leg extension assembly includes arc-shaped guide rails fixedly connected to both sides of the fixed base. There are at least two arc-shaped guide rails. The top of the base is fixedly connected to the center of the two arc-shaped guide rails. The top of the two fixed shafts is rotatably connected to a leg placement frame. The bottom of the two leg placement frames away from the fixed shafts is fixedly connected to a slide table. The two slide tables are slidably connected to the top of two adjacent arc-shaped guide rails. The bottom of the two slide tables away from the fixed shafts is rotatably connected to a roller.

[0010] Preferably, the length of the leg support is greater than the radius of the fixed axis.

[0011] Preferably, the opening and closing assembly includes an electric telescopic rod rotatably connected to the bottom of the fixed shaft on the side away from the fixed seat, a rotating seat fixedly connected to the side of the electric telescopic rod away from the fixed seat, a swing arm rotatably connected to the outer surface of the fixed shaft, the rotating seat rotatably connected to the bottom of the swing arm, a clamping seat fixedly connected to the side of the swing arm away from the fixed shaft, and a clamping plate slidably connected to the upper part of the clamping seat.

[0012] The clamp is L-shaped, and the distance between the inner side of the protrusion of the clamp and the inner side of the clamp plate is the same as the width of the bottom of the leg placement rack.

[0013] Preferably, the reciprocating assembly includes a driven gear rotatably connected to the bottom of the slide table on the side away from the roller; a tooth is fixedly connected to the inner arc surface of the arc-shaped guide rail; the driven gear is meshed with the tooth; a sliding cavity is provided inside the leg placement frame; a cam is rotatably connected inside the sliding cavity; the middle part of the driven gear is coaxially connected to the middle part of the cam; a sliding frame is slidably connected inside the sliding cavity; the cam and the sliding frame are in contact; and a return spring is provided inside the sliding cavity on the side away from the cam.

[0014] Preferably, the width of the sliding cavity is greater than the diameter of the arc generated when the cam side rotates, and the width of the outer surface of the sliding frame is equal to the width of the sliding cavity.

[0015] Preferably, the leg massage component includes a toothed tooth fixedly connected to one side of the sliding frame, and several driven gears are rotatably connected inside the sliding cavity. The toothed tooth and the driven gears are meshed together. A circular groove is provided inside the leg support frame, and a massager is rotatably connected inside the circular groove. The middle part of the driven gear is coaxially connected to the middle part of the massager.

[0016] Preferably, the driven gears are arranged at equal intervals, the circular grooves are arranged at equal intervals, and the distance between the driven gears is equal to the distance between the circular grooves.

[0017] Preferably, the emergency rebound assembly includes a storage box fixedly connected to the bottom of the clamp, an electromagnet is fixedly installed at the bottom of the storage box, a moving iron core is fixedly connected to the bottom of the clamp, a second reset spring is provided between the electromagnet and the moving iron core, and a compression spring is provided on the inner side of the protrusion of the clamp.

[0018] Preferably, a seat cushion is fixedly installed on the top of the base near the fixed shaft, and a sponge pad is provided on the seat cushion. A toggle switch is provided on the side of the fixed seat near the seat cushion.

[0019] As described above, the features and advantages of the stretching aid in this invention are:

[0020] By setting a clamp and a splint at the bottom of the leg rest, when the exerciser feels pain and uses the emergency switch to interrupt the retraction of the electric telescopic rod, the electric telescopic rod stops retracting, and the electromagnet is immediately energized to attract the moving iron core. This causes the moving iron core to quickly move the splint into the storage box. When the leg rest loses its limit, it will be pushed towards the fixed frame by the second spring under the action of the compressed return spring. This allows the exerciser's legs to move towards the fixed frame at the same time. This achieves the purpose of helping users who cannot effectively bring their legs together due to overstretching to bring their legs together. At the same time, it avoids the problem of the legs being overstretched and damaged due to the complicated operation of assisting the legs to rebound.

[0021] By coordinating the electric telescopic rod and the swing arm, when the stretching aid is interrupted in an emergency and the leg rests spring back, the electric telescopic rod extends when the stretching aid is used for training again. This causes the electric telescopic rod to push the swing arm to turn towards the fixed seat, which in turn causes the clamp to push the leg rests to turn towards the fixed seat. The two leg rests stop after turning to both sides of the fixed seat. When the clamp continues to rotate until it is fully in contact with the leg rests, the electromagnet is de-energized, causing the clamp to reset under the action of the second return spring. This restores the stretching training device to its initial state, eliminating the need for manual restoration after an emergency interruption, saving time and effort. It also solves the cumbersome steps of restoring the entire device to its original state, allowing different users to use it directly without the need for manual restoration.

[0022] By incorporating a massager within the leg support frame, when the electric telescopic rod drives the leg support frame to oscillate back and forth on the arc-shaped guide rail, the driven gear one, under the action of tooth one, drives the cam to rotate. This, in turn, under the action of the return spring one, drives the sliding frame to slide back and forth within the sliding cavity. Furthermore, under the action of tooth two and driven gear two, the massager rotates back and forth, achieving the effect of combining leg-opening stretching exercises with leg muscle massage. During leg-opening exercises, the muscles of the thighs and calves can be relaxed, alleviating the problem of insufficient muscle elasticity caused by the gradual tightening of muscles during exercises. This reduces the risk of injury for the exerciser and avoids the situation where some exercisers do not massage their muscles in time after exercise, resulting in unsatisfactory massage effects or more painful massages due to muscle soreness.

[0023] By incorporating two sets of massagers, one of which is positioned near the seat, the device can accommodate practitioners of different body types. Both sets of massagers can simultaneously massage and relax the calves and thighs of practitioners with longer legs, while the massager near the seat can relax the thigh muscles that are used more frequently when the practitioner has shorter legs. This ensures that the thigh muscles that are mainly used during leg-opening exercises are in a relaxed state, thus improving the applicability of the stretching aid. Attached Figure Description

[0024] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the overall structure shown in this invention;

[0025] Figure 2 This is a rear-view perspective view of the overall structure shown in this invention;

[0026] Figure 3 This is a side perspective perspective view of the opening and closing component structure shown in this invention;

[0027] Figure 4 This is a bottom-view perspective view of the opening and closing component structure shown in this invention;

[0028] Figure 5 This is a three-dimensional schematic diagram of the clamping structure shown in this invention;

[0029] Figure 6 This is a three-dimensional schematic diagram of the driven gear structure shown in this invention;

[0030] Figure 7 This is a three-dimensional cross-sectional view of the internal structure of the leg support frame shown in this invention;

[0031] Figure 8 This is a three-dimensional cross-sectional view of the leg support structure shown in this invention;

[0032] Figure 9 This is a three-dimensional cross-sectional view of the emergency rebound assembly structure shown in this invention;

[0033] Figure 10 As shown in this invention Figure 1 Enlarged view of point A in the middle.

[0034] In this invention, the reference numerals are: 1. base; 2. fixing seat; 8. cushion; 9. toggle switch;

[0035] The leg extension assembly includes: 31, an arc-shaped guide rail; 32, a fixed shaft; 33, a leg support frame; 34, a slide table; and 35, rollers.

[0036] The opening and closing assembly includes: 41. Electric telescopic rod; 42. Rotating seat; 43. Swing arm; 44. Clamp; 45. Clamping plate;

[0037] The reciprocating assembly includes: 51, driven gear 1; 52, gear teeth 1; 53, sliding cavity; 54, cam; 55, sliding frame; 56, return spring 1;

[0038] The leg massage component includes: 61, two teeth; 62, two driven gears; 63, a circular groove; 64, a massager;

[0039] The emergency rebound assembly includes: 71, storage box; 72, electromagnet; 73, moving iron core; 74, reset spring II; 75, compression spring. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] See 1~ Figure 10 As shown, this is a preferred embodiment of the present invention, and the provided stretching aid will be described in detail below:

[0042] A type of stretching aid, such as Figures 1-4 As shown, it includes: a base 1, a fixed seat 2 fixedly connected to the top of the base 1, leg stretching components on both sides of the fixed seat 2, an opening and closing component and a reciprocating component at the bottom of the leg stretching component, a leg massage component above the reciprocating component, and an emergency rebound component on the opening and closing component.

[0043] The leg stretching assembly includes at least two arc-shaped guide rails 31 fixedly connected to both sides of the fixed base 2. A fixed shaft 32 is symmetrically fixedly connected to the center of each of the two arc-shaped guide rails 31, with the end of the fixed shaft 32 away from the arc-shaped guide rail 31 fixedly connected to the base 1. The circle formed by the two arc-shaped guide rails 31 with the fixed shaft 32 as the center is at least one-quarter of the total circle. A leg support frame 33 is rotatably connected to the top of each of the two fixed shafts 32, so that the two joints at the hip-leg connection are located directly above the two fixed shafts 32. During the yoga practitioner's leg stretching training, the movement trajectory of the legs is the same as the movement trajectory of the leg support frame 33. The two arc-shaped guide rails 31 work together to allow the yoga practitioner's legs to open to a maximum of at least 90 degrees. Therefore, when the legs are opened to the sides of the body, the yoga practitioner's legs can open to a maximum of at least 180 degrees, completing a standard leg stretching training exercise. (Reference) Figure 8 and Figure 3 As shown, two leg support brackets 33 have slides 34 fixedly connected to their bottom sides away from the fixed axis 32. The two slides 34 are slidably connected to the tops of two adjacent arc-shaped guide rails 31. Rollers 35 are rotatably connected to the bottom of the slides 34. (Refer to...) Figure 1 and Figure 4 As shown, the outer arc surface of the arc-shaped guide rail 31 is provided with a groove that mates with the roller 35. The roller 35 is rotatably connected in the groove, and the length of the leg placement bracket 33 is greater than the rotation radius of the leg placement bracket 33.

[0044] Furthermore, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the opening and closing assembly includes an electric telescopic rod 41 symmetrically rotatably connected to an arc-shaped guide rail (31). A rotating seat 42 is fixedly connected to the side of the electric telescopic rod 41 away from the arc-shaped guide rail (31). A swing arm 43 is rotatably connected to the outer surface of the fixed shaft 32. The rotating seat 42 is rotatably connected to the bottom of the swing arm 43. When the electric telescopic rod 41 retracts, it will drive the rotating seat 42 to rotate around the fixed shaft 32 as the center. It rotates to the point between the fixed shaft 32 and the rotating connection of the electric telescopic rod 41. A clamp 44 is fixedly connected to the side of the swing arm 43 away from the fixed shaft 32. A clamping plate 45 is slidably connected to the clamp 44. The clamp 44 has a slot with the same cross-sectional shape as the clamp 45. The clamp 45 is slidably connected to the inside of the slot. The clamp 44 is L-shaped, and the end of the clamp 44 away from the clamp 45 is protruding. The spacing between the inner sides of the clamp 45 is the same as the width of the bottom of the leg placement frame 33. The top of the clamp 45 is flush with the protrusion of the clamp 44. The protrusion of the clamp 44 and the clamp 45 cooperate to clamp the bottom of the leg placement frame 33. Thus, when the swing arm 43 moves around the fixed axis 32, the leg placement frame 33 and the swing arm 43 move synchronously under the clamping action of the clamp 45 and the protrusion BF of the clamp 44.

[0045] Furthermore, such as Figure 6 and Figure 7 As shown, the reciprocating assembly includes a driven gear 51 rotatably connected to the bottom of the slide table 34 on the side away from the roller 35. A toothed gear 52 is fixedly connected to the inner arc surface of the arc-shaped guide rail 31. The toothed gear 52 is equidistantly arranged, and the driven gear 51 meshes with the toothed gear 52. A sliding cavity 53 is provided inside the leg support bracket 33. A cam 54 is rotatably connected inside the sliding cavity 53, located inside the sliding cavity 53 near the slide table 34. The middle part of the driven gear 51 is coaxially connected to the middle part of the cam 54. A sliding frame 55 is slidably connected inside the sliding cavity 53, and the cam 54 abuts against the sliding frame 55. A return spring 56 is provided inside the sliding cavity 53 on the side away from the cam 54. The two ends of the return spring 56 are respectively connected to the sliding cavity 53 and the slide table 34. The moving frame 55 is fixedly connected. The width of the sliding cavity 53 is greater than the diameter of the arc generated when the cam 54 rotates, so that the cam 54 will not interfere with the inner wall of the sliding cavity 53 when it rotates. This ensures that when the driven gear 51 rotates due to the meshing of the teeth 52, the cam 54 will continue to rotate under the drive of the driven gear 51. In cooperation with the return spring 56 on the other side of the sliding frame 55, the cam 54 pushes the sliding frame 55 to slide back and forth inside the sliding cavity 53. The width of the outer surface of the sliding frame 55 is equal to the width of the sliding cavity 53, so that the sliding frame 55 will not deviate when sliding inside the sliding cavity 53. Lubricating oil is added to the connection between the sliding frame 55 and the sliding cavity 53 to ensure the smooth sliding of the sliding frame 55.

[0046] Furthermore, such as Figure 6 and Figure 7 , Figure 8 As shown, the leg massage component includes a toothed gear 61 fixedly connected to one side of the sliding frame 55. Several driven gears 62 are rotatably connected inside the sliding cavity 53. The toothed gear 61 meshes with the driven gears 62. A circular groove 63 is provided inside the leg support 33, located directly above the driven gears 62. A massager 64 is rotatably connected inside the circular groove 63. The massager 64 includes a long massage head and a short massage head, so that when the massager 64 reciprocates, the long and short massage heads can massage the muscles of the yoga practitioner's legs to achieve a relaxation effect after training. The middle part of the driven gear 62 is coaxially connected to the middle part of the massager 64. The number of driven gears 62 and massagers 64 is the same, and the distance between the driven gears 62 is equal to the distance between the circular grooves 63.

[0047] Furthermore, such as Figure 5 and Figure 9As shown, the emergency rebound assembly includes a storage box 71 fixedly connected to the bottom of the clamp 44. The top of the storage box 71 has a slot with the same shape as the opening of the clamp 44. This slot is slidably connected to the clamp 45, allowing the clamp 45 to slide downwards and enter the storage box 71 for storage. An electromagnet 72 is fixedly installed at the bottom of the storage box 71. The electromagnet 72 generates magnetic force when energized in an emergency; it has no magnetic force when not energized. A moving iron core 7 is fixedly connected to the bottom of the clamp 45. 3. When the electromagnet 72 is energized and generates magnetic force, it attracts the moving iron core 73, thereby causing the clamping plate 45 to slide downwards into the storage box 71. A second return spring 74 is provided between the electromagnet 72 and the moving iron core 73. The two ends of the second return spring 74 are fixedly connected to the electromagnet 72 and the moving iron core 73, respectively. When the electromagnet 72 is energized and generates magnetic force, causing the moving iron core 73 to slide downwards, the moving iron core 73 will compress the second return spring 74, causing the second return spring 74 to be in a contracted state. When magnet 72 loses its magnetic force after being de-energized, the moving iron core 73, no longer attracted, is quickly pushed upward by the elastic force released by the return spring 74. This causes the moving iron core 73 to push the clamping plate 45 out of the storage box 71, allowing the clamping plate 45 to engage with the clamping seat 44 to clamp the leg rest 33 again. A compression spring 75 is provided on the inner side of the protrusion of the clamping seat 44, and an opening is provided on the inner side of the protrusion of the clamping seat 44. The compression spring 75 is located in this opening, so that when the leg rest 33 enters the clamping seat 44... The side of the leg rest 33 compresses the spring 75. The opening is used to accommodate the spring 75 in the compressed state. When the electromagnet 72 is energized, causing the clamp 45 to slide downward, the side of the clamp 44 away from the spring 75 loses its limit. At this time, the spring 75 is released, thereby pushing the leg rest 33 and the clamp 45 to no longer clamp the leg rest 33 and the swing arm 43 to move synchronously. The yoga stretcher moves the leg rest 33 to move and close on the arc guide rail 31 by bringing the legs together, achieving the effect of emergency rebound.

[0048] Furthermore, such as Figure 10As shown, a seat cushion 8 is fixedly installed on the top of the base 1 near the fixed axis 32. A sponge pad is provided on the seat cushion 8, and a backrest support is provided on the back of the seat cushion 8 for yoga practitioners to lean against. When the yoga practitioner sits on the sponge pad, the two joints connecting the legs and buttocks are located directly above the two fixed axes 32, so that when the yoga practitioner puts their legs into the leg support 33, the movement trajectory of the leg support 33 rotating around the fixed axis 32 is the same as the opening and closing trajectory of the yoga practitioner's legs. A toggle switch 9 is provided on the side of the fixed seat 2 near the seat cushion 8. When the yoga practitioner stretches their legs to the sides, the yoga practitioner needs to lean forward according to the needs of the movement. The toggle switch 9 is always in the yoga practitioner's hand. Within the reach of the arm, the toggle switch 9 includes a switch for controlling the electric telescopic rod 41 and an emergency switch. This allows yoga practitioners to easily open and close the electric telescopic rod 41 at any time according to their exercise situation. It also allows them to quickly use the toggle switch 9 to energize the electromagnet 72 when they feel discomfort, so that the leg rest 33 immediately disconnects the clamp 44 and the clamp plate 45. Under the action of the compression spring 75, the leg rest 33 is pushed back. This can immediately stop the movement of the leg rest 33, thus stopping the stretching exercise and preventing the leg rest 33 from continuing to open to the sides and causing injury when the yoga practitioner feels discomfort. It can also push the leg rest 33 back a short distance under the action of the compression spring 75 to prevent the leg rest 33 from quickly resetting and causing injury to the yoga practitioner.

[0049] Based on the above embodiments, the following is the complete working process and working principle of the above embodiments:

[0050] The initial state is:

[0051] The yoga practitioner sits on the cushion 8, facing the fixed seat 2, with both legs placed inside the two leg rests 33. The leg rests 33 are not rotated. The sides of the two leg rests 33 furthest from the fixed axis 32 are located on adjacent curved guide rails 31 and close to the fixed seat 2. The electric telescopic rod 41 is not retracted. The swing arm 43 is located directly below the leg rests 33. The bottom center of the leg rests 33 is located between the clamp 44 and the clamp plate 45. The driven gear 51 is not rotated and is engaged with the teeth 52 on the side closest to the fixed seat 2. The cam 54, coaxially connected to the driven gear 51, has a protruding portion pointing towards the side of the sliding cavity 53 away from the return spring 56. The return spring 56 is in an extended state, causing the middle of the sliding frame 55 near the cam 54 to abut against the side of the shorter end of the cam 54. The electromagnet 72 is not energized, the return spring 74 is in an extended state, and the moving iron core 73 is located at the top of the storage box 71, making the top of the clamping plate 45 flush with the top of the protrusion of the clamping seat 44. The compression spring 75 is in a tightened state under the squeezing action of the leg placement bracket 33 located between the clamping seat 44 and the clamping plate 45.

[0052] The working status is:

[0053] Yoga practitioners use leg rests 33 for stretching exercises:

[0054] After the yoga practitioner places their legs into the leg rests 33 on both sides, the electric telescopic rod 41 retracts. As the electric telescopic rod 41 retracts, its rotational connection with the bottom of the swing arm 43 synchronously drives the swing arm 43 to rotate around the fixed axis 32. The clamp 44 and clamp 45 on the side of the swing arm 43 away from the fixed axis 32 clamp the leg rests 33. The rotational connection between the leg rests 33 and the top of the fixed axis 32 causes the swing arm 43 to rotate synchronously with the leg rest 33 above it around the fixed axis 32. This causes the swing arm 43 to rotate towards the side closer to the electric telescopic rod 41. During rotation, the leg rest 33 moves away from the fixed seat 2 along the roller groove on the arc-shaped guide rail 31 via the slide 34 and roller 35. The roller groove on the outer arc surface of the arc-shaped guide rail 31 can limit the slide 34, thereby limiting the leg rest 33 away from the fixed axis 32 under the fixed connection between the slide 34 and the leg rest 33. Since the hip and leg joints of the yoga practitioner are located near the top of the two fixed axes 32 when the yoga practitioner sits on the cushion 8, the legs of the yoga practitioner and the leg rest 33 slowly open to the sides of the body along the same trajectory when the leg rest 33 rotates. This achieves the effect of leg stretching training.

[0055] Yoga practitioners should stop stretching exercises if they feel uncomfortable:

[0056] Because yoga practitioners' proficiency varies from person to person, beginners may not be able to fully open their legs for standard stretching exercises. Therefore, beginners need to slowly open the leg rest 33. If discomfort is felt, immediately use the toggle switch 9 to energize the electromagnet 72. The energized electromagnet 72 generates magnetic force, which attracts the moving iron core 73, causing it to descend rapidly inside the storage box 71 and compress the return spring 74. As the moving iron core 73 descends, it causes the clamp 45 to slide downwards and retract into the storage box 71. Once the clamp 45 has slid quickly into the storage box 71, the leg rest 33 rests on the clamp seat 44. When the side away from the compression spring 75 loses its limit, the electric telescopic rod 41 loses its connection with the clamp 44, and the compression spring 75 in the tightened state is released, thereby pushing the leg rest 33 to turn in the opposite direction to the stretching exercise, that is, to the side closer to the fixed seat 2. This allows the leg rest 33 to immediately stop opening and rebound a distance under the action of the compression spring 75 if the yoga practitioner feels that the stretching range is too large and uncomfortable during the leg stretching exercise. This prevents the leg rest 33 from continuing to rotate after the yoga practitioner feels uncomfortable, which could cause injury to the yoga practitioner. It can also prevent the leg rest 33 from returning to its original position too quickly, which could cause injury to the yoga practitioner.

[0057] After an emergency rebound, the leg rest 33 returns to its original position on the clamp 44.

[0058] When the leg rest 33 is unlocked and rebounded using the emergency rebound assembly, it is bounced a distance towards the fixed base 2. Therefore, the leg rest 33 is no longer directly above the swing arm 43. Before use, the leg rest 33 needs to be returned to the clamp 44. During return, the toggle switch 9 is used to drive the electric telescopic rod 41 to extend. When the electric telescopic rod 41 extends, since one end of the electric telescopic rod 41 is rotatably connected to the side of the arc-shaped guide rail 31 away from the fixed base 2, and the other end is rotatably connected to the bottom of the swing arm 43, the extension of the electric telescopic rod 41 will drive the swing arm 43 to rotate and move in a circular motion around the fixed shaft 32 towards the fixed base 2. When the swing arm 43 rotates and moves towards the fixed base 2, the clamp 45 is placed in the storage box 71. At this time, the clamp 44 will be connected to the leg rest. The leg support 33 is in contact with the clamp 44, but due to the action of the spring 75, the bottom of the leg support 33 cannot be fully reset to the clamp 44. The electric telescopic rod 41 needs to extend further, so that the clamp 44 pushes the leg support 33 to rotate until the leg support 33 rotates and moves to the side of the arc guide rail 31 near the fixed seat 2. At this time, the leg support 33 can no longer rotate. The electric telescopic rod 41 continues to extend, so that the moving clamp 44 and the fixed leg support 33 cooperate to press the spring 75. Then the inner side of the protrusion of the clamp 44 is in complete contact with the side of the leg support 33. At this time, the electromagnet 72 is de-energized, the moving iron core 73 loses its attraction, so that the return spring 74 in the tightened state is released and pushes the clamp 45 to reset, so that the connection between the clamp 44 and the leg support 33 is restored to the initial state.

[0059] Yoga practitioners use leg massage components to relax:

[0060] When the electric telescopic rod 41 reciprocates within a small range, the swing arm 43 swings back and forth under the action of the electric telescopic rod 41, thereby driving the leg placement frame 33 to swing back and forth under the action of the clamp 44 and the clamp plate 45. When the leg placement frame 33 swings, the slide table 34 swings synchronously on the arc-shaped guide rail 31. At this time, the driven gear 51 located at the bottom of the slide table 34 moves synchronously with the slide table 34 and rotates under the meshing action of the teeth 52, causing the driven gear 51 to drive the coaxially connected cam 54 to rotate. When the long end of the cam 54 gradually turns towards the sliding frame 55, the sliding frame 55 slides under the squeezing action of the long end of the cam 54 and squeezes the return spring 56. When the long end of the cam 54 rotates to the other side, the sliding frame 55 gradually slides towards the side closer to the cam 54 under the action of the return spring 56, realizing the movement of the sliding frame 55. During the reciprocating sliding of the sliding frame 55, the tooth 61 located on one side inside the sliding frame 55 meshes with the driven gear 62. When the sliding frame 55 slides down towards the return spring 56 under the action of the cam 54, the tooth 61 drives the driven gear 62 to rotate, thereby driving the massager 64 to rotate synchronously to massage the leg muscles of the yoga practitioner. When the sliding frame 55 returns to its original position, the driven gear 62 reverses under the action of the tooth 61, thereby driving the massager 64 to reverse, achieving the reciprocating rotation effect of the massager 64. Thus, when the electric telescopic rod 41 reciprocates, it massages and relaxes the leg muscles of the yoga practitioner, achieving the effect of massaging and relaxing muscles while stretching and opening the legs. This not only relaxes muscles during training, keeping them elastic and reducing the risk of injury, but also reduces muscle soreness caused by stretching exercises.

[0061] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stretch aid characterized by, include: The base (1) has a fixed seat (2) fixedly connected to its top. Leg stretching components are provided on both sides of the fixed seat (2). An opening and closing component and a reciprocating component are provided at the bottom of the leg stretching component. A leg massage component is provided above the reciprocating component. An emergency rebound component is provided on the opening and closing component. The leg stretching assembly includes arc-shaped guide rails (31) fixedly connected to both sides of the fixed base (2). There are at least two arc-shaped guide rails (31). Fixed shafts (32) are fixedly connected to the center of each of the two arc-shaped guide rails (31). Leg support brackets (33) are rotatably connected to the top of each of the two fixed shafts (32). A slide table (34) is fixedly connected to the bottom of the side of each of the two leg support brackets (33) away from the fixed shafts (32). The two slide tables (34) are slidably connected to the top of the two adjacent arc-shaped guide rails (31). Rollers (35) are rotatably connected to the bottom of each slide table (34) away from the fixed shafts (32).

2. The stretch aid of claim 1, wherein The length of the leg support (33) is greater than the radius of the fixed shaft (32).

3. The stretch aid of claim 2, wherein, The opening and closing assembly includes an electric telescopic rod (41) symmetrically rotatably connected to the bottom of one side of the arc-shaped guide rail (31). A rotating seat (42) is fixedly connected to the side of the electric telescopic rod (41) away from the arc-shaped guide rail (31). A swing arm (43) is rotatably connected to the outer surface of the fixed shaft (32). The rotating seat (42) is rotatably connected to the bottom of the swing arm (43). A clamp (44) is fixedly connected to the side of the swing arm (43) away from the fixed shaft (32). A clamping plate (45) is slidably connected to the upper part of the clamp (44).

4. The stretch aid of claim 3, wherein The clamp (44) is L-shaped, and the protrusion of the clamp (44) has the same width as the bottom of the leg rest (33).

5. The stretch aid of claim 1, wherein The reciprocating assembly includes a driven gear (51) rotatably connected to the bottom of the slide table (34) on the side away from the roller (35). The inner arc surface of the arc-shaped guide rail (31) is fixedly connected to a tooth (52). The driven gear (51) meshes with the tooth (52). The leg support frame (33) is provided with a sliding cavity (53). The sliding cavity (53) is rotatably connected to a cam (54). The middle part of the driven gear (51) is coaxially connected to the middle part of the cam (54). The sliding cavity (53) is slidably connected to a sliding frame (55). The cam (54) and the sliding frame (55) abut against each other. The sliding cavity (53) is provided with a return spring (56) on the side away from the cam (54).

6. The stretch aid of claim 5, wherein, The width of the outer surface of the sliding frame (55) is equal to the width of the sliding cavity (53).

7. The stretch aid of claim 6, wherein, The leg massage assembly includes a toothed gear (61) fixedly connected to one side of the sliding frame (55). Several driven gears (62) are rotatably connected inside the sliding cavity (53). The toothed gear (61) meshes with the driven gears (62). A circular groove (63) is provided inside the leg support frame (33). A massager (64) is rotatably connected inside the circular groove (63). The middle part of the driven gear (62) is coaxially connected with the middle part of the massager (64).

8. The stretching aid according to claim 7, characterized in that, The driven gears (62) are arranged at equal intervals, the circular grooves (63) are arranged at equal intervals, and the distance between the driven gears (62) is equal to the distance between the circular grooves (63).

9. The stretching aid according to claim 4, characterized in that, The emergency rebound assembly includes a storage box (71) fixedly connected to the bottom of the clamp (44), an electromagnet (72) fixedly installed in the inner bottom of the storage box (71), a moving iron core (73) fixedly connected to the bottom of the clamp (45), a second reset spring (74) is provided between the electromagnet (72) and the moving iron core (73), and a compression spring (75) is provided on the inner side of the protrusion of the clamp (44).

10. The tensioning aid according to claim 1, characterized in that, A cushion (8) is fixedly installed on the top of the base (1) near the fixed shaft (32), and a sponge pad is provided on the cushion (8). A toggle switch (9) is provided on the side of the fixed seat (2) near the cushion (8).

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