CN110975232B

CN110975232B - Dance training split lacing wire auxiliary device

Info

Publication number: CN110975232B
Application number: CN201911260394.3A
Authority: CN
Inventors: 沈涛洋
Original assignee: Yunyang Experimental Primary School
Current assignee: Yunyang Experimental Primary School
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2021-12-21
Anticipated expiration: 2039-12-10
Also published as: CN110975232A

Abstract

The invention discloses an auxiliary device for splitting and stretching for dance training, comprising a base plate, a cylinder, an extension rod and a placing plate. A handrail is fixedly installed at the top edge of the baseboard, and a soft cover is provided on the outer side of the handrail. The end of the rotating shaft located under the bottom plate is connected with one end of the positioning cylinder, the side of the bottom surface of the bottom plate away from the handrail is fixedly installed with a bearing support, the side of the cylinder is welded with a first slider, the positioning The top of the cylinder is provided with a second chute, and a positioning assembly is installed on the second chute, the extension rod is installed inside the other end of the positioning cylinder, and a universal wheel is fixed on the lower end surface of the end of the extension rod, so The placing tray is fixed at the end edge of the extension rod. The dance training splitting and stretching auxiliary device can be used to perform different batches of auxiliary training for tension and splits on the same device, providing training assistance for beginners, single-person operation, easy to use, and convenient for users to fix the legs and activate blood. The movement is carried out.

Description

Dance training split lacing wire auxiliary device

Technical Field

The invention relates to the technical field of education and teaching equipment, in particular to a dance training split lacing wire auxiliary device.

Background

Before dance teaching was gone on, need carry out supplementary split and lacing wire operation to the new hand that enters the door, reduce the strain problem that the new hand that dance entered the door took place at the in-process of teaching exercise to reduce the degree of difficulty of dance teaching exercise, current split and lacing wire are direct through artificial supplementary operation that carries on, carry out learner's split and lacing wire and assist and go on.

However, the existing split lacing wire for dance training has the following problems:

1. the problem of inconvenient operability exists directly through artificial auxiliary splits and lacing wires, and in the process of single person practice, a practicer cannot find a proper auxiliary tool to carry out the dance teaching and practicing, so that the progress of the teaching and practicing is easily influenced, and the dance teaching and learning are delayed;

2. chorea training's split and lacing wire part, need carry out the supplementary of different operations and equipment and go on, lead to the total length of consuming time increase of split and lacing wire, influence chorea training's going on, can not carry out massage treatment to the shank that the dancer tired out simultaneously, lead to dancer's shank to need time more to carry out fatigue recovery.

Aiming at the problems, innovative design is urgently needed on the basis of the original dance training split lacing wire.

Disclosure of Invention

The invention aims to provide a dance training split lacing wire auxiliary device, and aims to solve the problems that the existing dance training split lacing wire in the prior art is inconvenient to operate by a single person, and is inconvenient to operate when the dance training split lacing wire is independently performed, so that dance teaching training is delayed, and meanwhile, the lacing wire and the split are separated, so that the training is not facilitated to be rapidly performed, and the functionality and the practicability are not enough.

In order to achieve the purpose, the invention provides the following technical scheme: a dance training split lacing wire auxiliary device comprises a bottom plate, a cylinder, an extension rod and a placing disc, wherein a grab bar is fixedly installed at the edge of the top of the bottom plate, a soft sleeve is sleeved on the outer side of the grab bar, a pad disc is arranged at the top of the bottom plate, the middle of the pad disc is connected with the bottom plate through a rotating shaft, the end portion of the rotating shaft, which is located below the bottom plate, is connected with one end of a positioning cylinder, a gear shaft is sleeved on the outer side of the joint of the rotating shaft and the positioning cylinder, a bearing support is fixedly installed on one side, away from the grab bar, of the bottom surface of the bottom plate, a rotating wheel and a rotating rod are connected in the middle of the bearing support in a penetrating mode, a positioning wheel is fixed at the end portion of the rotating rod, a first sliding block is welded on the side of the cylinder, the cylinder is connected with the center of the lower end surface of the bottom plate through the first sliding block and a first sliding groove, and the inner wall of the cylinder is connected with the outer wall of the positioning wheel, the outer side of the cylinder is connected with the gear shaft through a sawtooth strip, the top of the positioning cylinder is provided with a second sliding chute, and the second chute is provided with a positioning component, the extension rod is arranged inside the other end of the positioning cylinder, and the outer side of the positioning cylinder is fixed with a supporting seat, the hand-operated rod is arranged on the supporting seat in a penetrating way, the bottom of the hand-operated rod is connected with the bottom of the extension rod through the strip-shaped wheel, the lower end surface of the end part of the extension rod is fixed with a universal wheel, the upper end surface of the end part of the extension rod is provided with a positioning disc, the positioning disc and the extension rod are connected with each other through a second sliding block and a third sliding groove, the placing disc is fixed at the edge of the end part of the extension rod, a positioning clamp is arranged on the side of the placing disc, and the outer wall of the positioning clamp is connected with the positioning disc through a connecting rod, and a through hole is reserved at the joint of the connecting rod and the extension rod.

Preferably, the pad discs are symmetrically arranged about the central line of the bottom plate, the pad discs and the bottom plate form a relative rotation structure, and the distance between the central points of the pad discs is smaller than half of the rotation diameter of the pad discs.

Preferably, the positioning wheel and the cylinder form a relative rotation structure, the outer wall of the positioning wheel is in threaded connection with the inner wall of the cylinder, the cylinder and the bottom plate form a relative sliding installation structure, and the sawtooth racks on the outer wall of the cylinder are in meshed connection with the gear shaft.

Preferably, the positioning assembly is composed of an outer ring and a sliding base, the outer ring is welded on the top of the sliding base, and the outer ring forms a sliding installation structure clamped with the second sliding groove through the sliding base.

Preferably, the inner wall of the outer ring is rotatably provided with a round roller, the end part of the outer ring is connected with a binding band, the two sides of the sliding base are respectively provided with a motor and a pull rod, the motor is connected with the round roller through a driving wheel, the round roller is uniformly arranged on the inner wall of the outer ring at equal angles, the round roller is embedded on the inner wall of the outer ring, and the round roller and the outer ring form a rotating structure.

Preferably, extension rod and location section of thick bamboo constitute relative extending structure, and the bottom of extension rod sets up to the bar cusp to perpendicular meshing setting between the bottom of extension rod and the outer wall of bar wheel.

Preferably, the top of positioning disk sets up concave-convex structure, and positioning disk and extension rod constitute slidable mounting structure to the top of positioning disk is located and places the below the concave surface in top of dish.

Preferably, the locating clip is symmetrical about the vertical center axis of placing the dish and is set up, and the locating clip constitutes relative flexible mounting structure with placing the dish to the locating clip passes through connecting rod and locating disc interconnect, and the connecting rod all constitutes revolution mechanic with locating disc and locating clip moreover.

Compared with the prior art, the invention has the beneficial effects that: the dance training split lacing wire auxiliary device can be used for tensioning different batches and performing auxiliary training on splits on the same device, is used for training assistance for beginners, is operated by one person, is convenient to use, and facilitates the fixation of legs of users and the blood circulation movement;

1. only through the manual rotation of the rotating wheel and the hand-operated lever, after the leg of the trainer is fixed, the single operation of the trainer can be carried out, the purposes of training the lacing wire and assisting the split are achieved, the use is convenient and quick, no assistance participation of outsiders is needed, and the dance training beginner has good practicability during single training;

2. under the seesaw effect that user's heel promoted the positioning disk, can reach the relative flexible purpose of placing dish and location clamp for trainer's foot is placed in placing the dish after, can carry out the fixed of user's foot under its relative flexible effect, and convenient to use does not need other people to fix and manual fixed.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic bottom view of the present invention;

FIG. 3 is a schematic view of a positioning assembly according to the present invention;

FIG. 4 is a schematic view of a driving wheel mounting structure according to the present invention;

FIG. 5 is a schematic side view of the strap wheel mounting arrangement of the present invention;

FIG. 6 is a schematic top view of the strip wheel assembly of the present invention;

FIG. 7 is a schematic side view of the positioning plate according to the present invention;

FIG. 8 is a schematic top view of the puck mounting structure of the present invention.

In the figure: 1. a base plate; 2. a grab rail; 3. a soft sleeve; 4. a pad disc; 5. a rotating shaft; 6. a positioning cylinder; 7. a gear shaft; 8. a bearing support; 9. a rotating wheel; 10. a rotating rod; 11. positioning wheels; 12. a cylinder; 13. a first slider; 14. a first chute; 15. a sawtooth strip; 16. a second chute; 17. a positioning assembly; 1701. an outer ring; 1702. a sliding base; 1703. a round roller; 1704. binding bands; 1705. a motor; 1706. a pull rod; 1707. a driving wheel; 18. an extension rod; 19. a supporting seat; 20. a hand lever; 21. a bar wheel; 22. a universal wheel; 23. positioning a plate; 24. a second slider; 25. a connecting rod; 26. a third chute; 27. placing a tray; 28. positioning clips; 29. a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a dance training split lacing wire auxiliary device comprises a bottom plate 1, a grab bar 2, a soft sleeve 3, a pad 4, a rotating shaft 5, a positioning cylinder 6, a gear shaft 7, a bearing support 8, a rotating wheel 9, a rotating rod 10, a positioning wheel 11, a cylinder 12, a first slider 13, a first chute 14, a sawtooth strip 15, a second chute 16, a positioning component 17, an outer ring 1701, a sliding base 1702, a round roller 1703, a bandage 1704, a motor 1705, a pull rod 1706, a transmission wheel 1707, an extension rod 18, a support seat 19, a hand-operated rod 20, a strip-shaped wheel 21, a universal wheel 22, a positioning disk 23, a second slider 24, a connecting rod 25, a third chute 26, a placing disk 27, a positioning clamp 28 and a through hole 29, wherein the grab bar 2 is fixedly installed at the top edge of the bottom plate 1, the soft sleeve 3 at the outer side of the grab bar 2 is arranged at the top of the bottom plate 1, the pad 4 is arranged at the top of the bottom plate 1, and the middle of the pad 4 is connected with the bottom plate 1 through the rotating shaft 5, the end part of the rotating shaft 5 positioned below the bottom plate 1 is connected with one end of a positioning cylinder 6, a gear shaft 7 is sleeved on the outer side of the joint of the rotating shaft 5 and the positioning cylinder 6, a bearing support 8 is fixedly arranged on one side of the bottom surface of the bottom plate 1 far away from the grab bar 2, a rotating wheel 9 and a rotating rod 10 are connected in the middle of the bearing support 8 in a penetrating way, a positioning wheel 11 is fixed at the end part of the rotating rod 10, a first slider 13 is welded on the side of a cylinder 12, the cylinder 12 is connected with the center of the lower end surface of the bottom plate 1 through the first slider 13 and a first chute 14, the inner wall of the cylinder 12 is connected with the outer wall of the positioning wheel 11, the outer side of the cylinder 12 is connected with the gear shaft 7 through a saw-toothed bar 15, a second chute 16 is arranged at the top of the positioning cylinder 6, a positioning component 17 is arranged on the second chute 16, an extension rod 18 is arranged inside the other end of the positioning cylinder 6, and a support seat 19 is fixed on the outer side of the positioning cylinder 6, a hand lever 20 is installed on the supporting seat 19 in a penetrating manner, the bottom of the hand lever 20 is connected with the bottom of the extension rod 18 through a strip wheel 21, a universal wheel 22 is fixed on the lower end face of the end of the extension rod 18, a positioning disc 23 is installed on the upper end face of the end of the extension rod 18, the positioning disc 23 is connected with the extension rod 18 through a second sliding block 24 and a third sliding groove 26, a placing disc 27 is fixed on the edge of the end of the extension rod 18, a positioning clamp 28 is installed on the side of the placing disc 27, the outer wall of the positioning clamp 28 is connected with the positioning disc 23 through a connecting rod 25, and a through hole 29 is reserved at the connecting position of the connecting rod 25 and the extension rod 18;

the cushion discs 4 are symmetrically arranged about the central line of the bottom plate 1, the cushion discs 4 and the bottom plate 1 form a relative rotation structure, the distance between the central points of the cushion discs 4 is smaller than half of the rotation diameter of the cushion discs 4, the cushion discs 4 are arranged to prevent mutual collision in the rotation process, and meanwhile, the rotation structure of the cushion discs facilitates the change of the hip position in the process of assisting splitting;

the positioning wheel 11 and the cylinder 12 form a relative rotation structure, the outer wall of the positioning wheel 11 is in threaded connection with the inner wall of the cylinder 12, the cylinder 12 and the bottom plate 1 form a relative sliding installation structure, the sawtooth strips 15 on the outer wall of the cylinder 12 are in meshed connection with the gear shaft 7, and the positioning wheel 11 is installed and arranged so that the cylinder 12 and the bottom plate 1 can generate relative sliding displacement in the rotation process;

the positioning assembly 17 is composed of an outer ring 1701 and a sliding base 1702, the outer ring 1701 is welded on the top of the sliding base 1702, the outer ring 1701 forms a clamping sliding installation structure through the sliding base 1702 and the second sliding groove 16, the positioning assembly 17 is structurally arranged, auxiliary support of human legs is facilitated, and suspension arrangement of the legs is avoided;

the inner wall of the outer ring 1701 is rotatably provided with a round roller 1703, the end part of the outer ring 1701 is connected with a binding belt 1704, two sides of the sliding base 1702 are respectively provided with a motor 1705 and a pull rod 1706, the motor 1705 is mutually connected with the round roller 1703 through a driving wheel 1707, the round roller 1703 is uniformly arranged on the inner wall of the outer ring 1701 at equal angles, the round roller 1703 is embedded on the inner wall of the outer ring 1701, the round roller 1703 and the outer ring 1701 form a rotating structure, and the whole structure of the positioning assembly 17 is arranged, so that when the legs of a person are conveniently positioned, the legs of the person can be massaged, the fatigue of the legs of the person is reduced, and the positioning assembly 17 has different functions when being positioned;

the extension rod 18 and the positioning cylinder 6 form a relative telescopic structure, the bottom of the extension rod 18 is in a strip-shaped tooth shape, the bottom of the extension rod 18 is vertically meshed with the outer wall of the strip-shaped wheel 21, the installation position of the extension rod 18 is changed when the strip-shaped wheel 21 rotates, the leg tendon stretching of a trainer is carried out, and the auxiliary work of tendon stretching operation is facilitated;

the top of the positioning disc 23 is provided with a concave-convex structure, the positioning disc 23 and the extension rod 18 form a sliding installation structure, the top of the positioning disc 23 is positioned below the concave surface of the top of the placing disc 27, and the positioning disc 23 is structurally arranged, so that the position of the positioning disc 23 can be conveniently changed by utilizing the heels of a trainer;

locating clip 28 sets up about the vertical center axis symmetry of placing dish 27, and locating clip 28 constitutes relative flexible mounting structure with placing dish 27, and locating clip 28 passes through connecting rod 25 and locating disk 23 interconnect, and connecting rod 25 all constitutes revolution mechanic with locating disk 23 and locating clip 28, at the in-process that locating disk 23 promoted, connecting rod 25 rotates and promotes, make locating disk 23 and locating clip 28 take place relative flexible, under trainer's heel impetus, it is fixed to carry out trainer's foot, high durability and convenient use, when fixed trainer foot, the foot ligature that need not carry out the staff.

The working principle is as follows: when the dance training split lacing wire auxiliary device is used, firstly according to the figures 1 and 7-8, the hip of a trainer is directly seated on the pad 4 on the bottom plate 1, the thigh and the calf of the trainer are respectively placed on the positioning component 17 and the placing disc 27, the foot of the trainer is fixed only by the fact that the trainer holds the heel to push the positioning disc 23, the positioning disc 23 and the extension rod 18 slide relatively, when the positioning disc 23 gradually moves towards the placing disc 27, the positioning disc 23 pushes the positioning clamp 28 through the connecting rod 25, the positioning clamp 28 and the placing disc 27 are made to stretch and unfold, the foot of the trainer is conveniently placed between the positioning clamp 28 and the placing disc 27, the positioning disc 23 is pushed by the heel to move away from the placing disc 27, and the positioning clamp 28 and the placing disc 27 are relatively contracted under the action of the connecting rod 25 to fix the foot of the trainer;

according to the figures 1 and 5-6, the thigh of the trainer is positioned and fixed through the binding belt 1704, the hand lever 20 on the support seat 19 is rotated manually, the hand lever 20 drives the strip-shaped wheel 21 connected with the lower end of the hand lever 20 to rotate in the rotating process of the hand lever 20, and the extension rod 18 and the positioning cylinder 6 stretch relatively in the rotating process of the strip-shaped wheel 21 due to the fact that the outer wall of the strip-shaped wheel 21 is meshed with the bottom of the extension rod 18, so that the leg of the trainer can be subjected to auxiliary lacing wire operation operated by a single person;

according to fig. 1-4, when the leg of the trainer is subjected to lacing, the rotating wheel 9 can be manually rotated, the rotating wheel 9 drives the rotating rod 10 to rotate in the bearing support 8, because the end part of the rotating rod 10 is provided with the positioning wheel 11, the positioning wheel 11 is in threaded connection with the cylinder 12, and the bottom of the cylinder 12 forms a sliding installation structure with the bottom plate 1 through the first sliding block 13 and the first sliding groove 14, the cylinder 12 has a trend of rotating motion due to the rotation of the positioning wheel 11 in the rotating process of the rotating wheel 9 and the rotating rod 10, and due to the positioning of the first sliding block 13 and the first sliding groove 14, the cylinder 12 generates front and back sliding displacement in the forward and reverse rotating process of the rotating wheel 9, under the action of the sawtooth strips 15 on the outer wall of the cylinder 12, the sawtooth strips 15 are mutually meshed with the gear shaft 7 at the connection part of the rotating shaft 5 and the positioning cylinders 6, so that the 2 positioning cylinders 6 generate relative rotating motion, the auxiliary split for beginner's training provides power, after the training of training a period, can open motor 1705 through the not hard up of bandage 1704, motor 1705 makes the circle roller 1703 of outer loop 1701 inner wall mounting rotatory through drive wheel 1707, carry out training's auxiliary massage, eliminate fatigue, carry out training's recovery faster, in the in-process of manual push-and-pull rod 1706, pull rod 1706 exerts external force and makes sliding base 1702 slide in second spout 16, massage the different positions of training person's shank.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. An auxiliary device for splitting and stretching for dance training, comprising a base plate (1), a cylinder (12), an extension rod (18) and a placing plate (27), characterized in that: at the top edge of the base plate (1) The handrail (2) is fixedly installed, and the outer side of the handrail (2) is provided with a soft cover (3), and the top of the bottom plate (1) is provided with a pad (4), and the middle of the pad (4) is connected to the The bottom plates (1) are connected to each other by a rotating shaft (5), the end of the rotating shaft (5) located below the bottom plate (1) is connected with one end of the positioning cylinder (6), and the rotating shaft (5) and the positioning cylinder (6) A gear shaft (7) is sleeved on the outer side of the connection, a bearing support (8) is fixedly installed on the side of the bottom surface of the bottom plate (1) away from the handrail (2), and the middle of the bearing support (8) is connected through the middle There are a rotating wheel (9) and a rotating rod (10), and the end of the rotating rod (10) is fixed with a positioning wheel (11), and the side of the cylinder (12) is welded with a first slider (13), And the cylinder (12) is connected to the center of the lower end face of the bottom plate (1) through the first slider (13) and the first chute (14), and the inner wall of the cylinder (12) and the outer wall of the positioning wheel (11) connected to each other, and the outer side of the cylinder (12) is connected to the gear shaft (7) through the sawtooth bar (15), the top of the positioning cylinder (6) is provided with a second chute (16), and the second chute The positioning assembly (17) is installed on the (16), the extension rod (18) is installed inside the other end of the positioning cylinder (6), and the outer side of the positioning cylinder (6) is fixed with a support seat (19), and the support seat A hand rocker (20) is installed through the (19), and the bottom of the hand rocker (20) is connected to the bottom of the extension rod (18) through the bar wheel (21), and the end of the extension rod (18) is connected to each other. A universal wheel (22) is fixed on the lower end face of the extension rod (18), and a positioning disc (23) is installed on the upper end face of the end of the extension rod (18), and a second slider is passed between the positioning disc (23) and the extension rod (18). (24) and the third chute (26) are connected to each other, the placing plate (27) is fixed at the end edge of the extension rod (18), and the side of the placing plate (27) is installed with a positioning clip (28) , and the outer wall of the positioning clip (28) is connected with the positioning plate (23) through the connecting rod (25), and a through hole (29) is reserved at the connection between the connecting rod (25) and the extension rod (18);

Said pad (4) is symmetrically arranged with respect to the center line of the bottom plate (1), and the pad (4) and the bottom plate (1) constitute a relative rotation structure, and the distance between the center points of the pad (4) is smaller than that of the pad (4). 4) Turn half of the diameter;

The positioning wheel (11) and the cylinder (12) constitute a relative rotation structure, and the outer wall of the positioning wheel (11) and the inner wall of the cylinder (12) are threadedly connected, and the cylinder (12) and the bottom plate (1) A relative sliding installation structure is formed, and the toothed bar (15) on the outer wall of the cylinder (12) is meshed with the gear shaft (7);

The positioning assembly (17) is composed of an outer ring (1701) and a sliding base (1702) respectively, and the outer ring (1701) is welded to the top of the sliding base (1702), and the outer ring (1701) passes through the sliding base ( 1702) and the second chute (16) to form a sliding installation structure that engages;

A round roller (1703) is rotatably installed on the inner wall of the outer ring (1701), and a strap (1704) is connected to the end of the outer ring (1701), and a motor ( 1705) and the tie rod (1706), and the motor (1705) is connected to each other through the transmission wheel (1707) and the round roller (1703), the round roller (1703) The roller (1703) is embedded on the inner wall of the outer ring (1701), and the round roller (1703) and the outer ring (1701) constitute a rotating structure;

The extension rod (18) and the positioning cylinder (6) form a relatively telescopic structure, and the bottom of the extension rod (18) is set in a bar-shaped tooth shape, and the bottom of the extension rod (18) is connected to the outer wall of the bar wheel (21). Vertical meshing settings between;

The top of the positioning plate (23) is provided with a concave-convex structure, and the positioning plate (23) and the extension rod (18) constitute a sliding installation structure, and the top of the positioning plate (23) is located at the top of the placing plate (27) between the concave surfaces of the top Down;

The positioning clip (28) is symmetrically arranged with respect to the vertical central axis of the placing plate (27), and the positioning clip (28) and the placing plate (27) constitute a relative telescopic installation structure, and the positioning clip (28) passes through the connecting rod (25) ) and the positioning plate (23) are connected to each other, and the connecting rod (25), the positioning plate (23) and the positioning clip (28) all constitute a rotating structure;

When using the auxiliary device for dance training for splits and stretching, first, the trainer's buttocks sit directly on the plate (4) on the bottom plate (1), and the trainer places the thigh and calf on the positioning component (17) and the placing plate respectively. (27), for the trainer's foot to be fixed, the trainer only needs to take the heel and push the positioning plate (23), the positioning plate (23) and the extension rod (18) slide relative to each other, and the positioning plate (23) gradually leans toward the position plate (23). When the placing plate (27) moves, the positioning plate (23) will push the positioning clip (28) through the connecting rod (25), so that the positioning clip (28) and the placing plate (27) can be expanded and retracted, which is convenient for the trainer’s feet to be placed on the Between the positioning clip (28) and the placing plate (27), push the positioning plate (23) away from the placing plate (27) through the heel to move, under the action of the connecting rod (28), the positioning clip (28) and the placing plate (27) ) to fix the trainer’s feet by relative contraction; position and fix the trainer’s thigh through the straps (1704), and manually rotate the hand rocker (20) on the support base (19), and the hand rocker (20) During the rotation, the hand rocker (20) rotates with the bar wheel (21) connected to its lower end. 21) During the rotation process, the extension rod (18) and the positioning cylinder (6) are relatively stretched, so that the trainer's leg can perform the auxiliary stretching work of single-person operation;

When the trainer's leg is doing stretching, by manually rotating the turning wheel (9), the turning wheel (9) rotates with the rotating rod (10) in the bearing support (8), because the end of the rotating rod (10) is rotated in the bearing support (8). The part is provided with a positioning wheel (11), and the positioning wheel (11) and the cylinder (12) are threadedly connected, and the bottom of the cylinder (12) is connected with the first slider (13) and the first chute (14) The bottom plate (1) constitutes a sliding installation structure, so that during the rotation of the rotating wheel (9) and the rotating rod (10), the cylinder (12) has a tendency to rotate due to the rotation of the positioning wheel (11). The positioning of the slider (13) and the first chute (14) makes the cylinder (12) slide forward and backward during the forward and reverse rotation of the rotating wheel (9), and the sawtooth bars on the outer wall of the cylinder (12) Under the action of (15), the sawtooth strip (15) meshes with the gear shaft (7) at the connection between the rotating shaft (5) and the positioning cylinder (6), so that the (2) positioning cylinders (6) undergo relative rotational motion, which is for beginners. The trainer's auxiliary split provides power. After the trainer has trained for a period of time, the motor (1705) is turned on by loosening the strap (1704), and the motor (1705) is installed on the inner wall of the outer ring (1701) through the transmission wheel (1707). The circular roller (1703) rotates to perform auxiliary massage of the trainer, eliminate fatigue, and recover the trainer faster. In the process of manually pushing and pulling the pull rod (1706), the pull rod (1706) exerts an external force to make the sliding base (1702) in the Slide the second chute (16) to massage different positions of the trainer's legs.