CN210096813U - Ligament passive stretching device - Google Patents

Abstract

The utility model provides a passive ligament stretching device, which belongs to the field of ligament stretching. The technical scheme is as follows: a circular groove is concentrically arranged on a circular base, a turntable is arranged in the circular groove, an extension plate is externally connected to the side of the circular base, four extension plates are evenly distributed in the circumferential direction, and a vertical plate is arranged on the extension plate. , the top of the vertical plate is connected by the top plate, the two-way screw is arranged between the left and right vertical plates, the two ends of the two-way screw are connected with a slider by a screw thread, the upper end of the turntable is symmetrically provided with a hinge shaft, and the turntable and the slider are respectively connected by connecting rods One end of the connecting rod is hinged on the slider, and the other end is hinged on the hinge shaft. The beneficial effect of the utility model is to facilitate the passive stretching of the trainer's ligament and effectively reduce the trainer's ligament passive stretching device. .

Description

A passive ligament stretching device

technical field

The utility model relates to the field of ligament stretching instruments, in particular to a passive ligament stretching device.

Background technique

In modern society, people are more and more fond of sports, especially yoga, dance, martial arts, taekwondo and other sports, which are more and more popular with the general public. In these sports, ligament stretching is a very important basic skill, and sometimes, although When individuals stretch ligaments through stretching equipment, they can avoid muscle strain caused by excessive stretching, and the safety is guaranteed. However, due to different people's willpower and tolerance, it is difficult for some people to achieve the stretching effect. Therefore, it is necessary to use external force or the cooperation of the coach to stretch the ligament, which can achieve a better stretching effect.

Utility model content

The purpose of the utility model is to provide a passive ligament stretching device which is simple in structure, convenient for passively stretching the ligament of the trainer, and can effectively reduce the physical strength of the trainer.

The utility model is realized by the following technical solutions: a passive ligament stretching device, which is characterized in that it comprises a circular base, and a circular groove is concentrically arranged on the circular base, and a circular groove is arranged in the circular groove. There is a turntable, an extension plate is externally attached to the side of the circular base, four extension plates are evenly distributed in the circumferential direction, and a vertical plate is arranged on the extension plate, and the top of the vertical plate is connected by a top plate, and the vertical plates on the left and right are connected between the vertical plates. A two-way screw is provided, and both ends of the two-way screw are connected with a slide block by means of threads. One end of the rod is hinged at the bottom center position of the slider, and the other end is hinged on the hinge shaft, and the top of the slider is provided with an ankle slot open in the front-rear direction;

The upper end face of the turntable is symmetrically provided with a hinge shaft, the turntable and the slider are respectively connected by connecting rods, one end of the connecting rod is hinged at the bottom center position of the slider, and the other end is hinged at the hinge on the shaft;

The top plate is symmetrically provided with baffles in the front and rear directions, and the baffles are located on both sides of the rectangular opening.

When the two-way screw rotates, due to the limit of the connecting rod, the two sliding blocks can only move linearly in different directions, thereby changing the distance between the two ankle clipping grooves.

Further, two limit posts are fixedly arranged between the left and right vertical plates and inside the rectangular opening, the limit posts are symmetrically arranged, and limit slots are arranged on both sides of the bottom of the slider, the limit The post is arranged in the limiting groove, and further limits the sliding block.

Further, the middle position of the ankle clipping slot is divided into two parts by a rectangular slot, both ends of the ankle clipping slot are circumscribed with leg clipping slots, and the leg clipping slot and the ankle clipping slot transition through an arc. The arc transition can avoid injury to the user's feet and legs, and a pad made of soft materials, such as sponge, can also be arranged on the inner wall of the card slot. When two people's feet are placed, the width of the leg slot is wider than the width of the ankle slot.

The bottom of the baffle plate is provided with a limit plate, the limit plate is provided with a circular hole, the top plate is provided with a limit port matched with the limit plate, and the bottom of the top plate is located on the limit plate. A fixing plate is arranged on both sides of the position opening, a straight slot is arranged on the fixing plate, and the baffle plate is connected by a bolt passing through the round hole and the straight slot. The back of the user leans on the baffle, and the baffle can be adjusted to suit the use of people of different heights, and the limiting plate can move forward and backward along the limiting opening and the straight notch.

The lower end surface of the ankle clipping slot is flush with the upper end surface of the top plate, and the two-way screw is located below the top plate to ensure the comfort of the user.

A connecting plate connected to the top plate is arranged at the middle position of the limiting column. The connecting plate can limit the moving distance of the sliding block.

The turntable is provided with a weight-reducing hole, and the ankle clip slot or the leg clip slot is provided with a limit structure, which can be limited by a door bolt structure, an iron chain hook or an elastic rope. Use it according to the usage, the purpose is to prevent the user's legs from getting out of the card slot.

A straight slot is arranged on the turntable, the hinge shaft is arranged in the straight slot, a fixing nut is arranged at the bottom end of the hinge shaft, and an external thread is arranged on the hinge shaft above the fixing nut, The hinge shaft is connected with the turntable through a nut, the circular base is concentrically provided with a circular hole, the straight notch is located in the circular hole, and the middle position of the bidirectional screw is the optical axis.

One end of the two-way screw protrudes from the vertical plate to connect to the drive device. The drive device can be a manual handle or a two-way motor with a reducer. The two-way motor drive must be in a way that the hinge shaft can be adjusted. In this way, the distance between the two sliding blocks can be limited to avoid injury to the user. The motor can increase the control structure in the prior art to control the timing forward and reverse rotation of the motor.

The beneficial effects of the utility model are as follows: the structure is simple, the ligament of the trainer can be conveniently stretched passively, and the physical strength of the trainer can be effectively reduced.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a partial enlarged view of A in FIG. 1 .

FIG. 3 is a schematic structural diagram of a circular base and related parts.

FIG. 4 is a schematic structural diagram of the bottom of the utility model.

FIG. 5 is a partial schematic diagram at B in FIG. 4 .

FIG. 6 is a schematic view of the structure with the top plate removed.

Wherein, the reference signs are: 1, circular base; 2, bidirectional screw; 3, slider; 4, baffle; 5, turntable; 6, connecting rod; 101, circular groove; 102, extension plate; 103 , left vertical plate; 104, front vertical plate; 105, rectangular mouth; 106, limit post; 107, limit mouth; 108, circular hole; 109, connecting plate; 110, fixing plate; 111, straight slot two ;112, top plate; 201, manual handle; 301, ankle slot; 302, rectangular slot; 303, leg slot; 304, limit slot; 401, limit plate; 402, bolt two; 501, straight slot One; 502 bolt one; 503, weight reduction hole; 504, nut.

Detailed ways

In order to clearly illustrate the technical features of the solution, the solution will be described below through specific implementations.

1-6, the present invention is a passive ligament stretching device, comprising a circular base 1, a circular groove 101 is concentrically provided on the circular base 1, and a turntable 5 is provided in the circular groove 101, The side of the circular base 1 is externally connected with extension plates 102, and four extension plates 102 are evenly distributed in the circumferential direction. The extension plate 102 is provided with a vertical plate, and the top of the vertical plate is connected by the top plate 112. The two ends of the screw 2 and the two-way screw 2 are provided with a slider 3 through screw connection. The top plate 112 is located between the left vertical plate 103 and the right vertical plate with a rectangular opening 105. The top of the device is provided with an ankle clip slot 301 opened in the front and rear directions;

The upper end surface of the turntable 5 is symmetrically provided with a hinge shaft 505, the turntable 5 and the slider 3 are respectively connected by a connecting rod 6, one end of the connecting rod 6 is hinged at the bottom center position of the slider 3, and the other end is hinged on the hinge shaft 505;

The top plate 112 is provided with baffles 4 symmetrically in the front and rear directions, and the baffles 4 are located on both sides of the rectangular opening 105 .

When the two-way screw 2 rotates, due to the limit of the connecting rod 6, the two sliders 3 can only move linearly in different directions, thereby changing the distance between the two ankle slots 301.

Further, two limit posts 106 are fixedly arranged between the left vertical plate 103 and the right vertical plate and located inside the rectangular opening 105. The limit columns 106 are symmetrically arranged. The post 106 is arranged in the limiting groove 304 to further limit the sliding block 3 .

Further, the middle position of the ankle clipping slot 301 is divided into two parts by the rectangular slot 302 , the two ends of the ankle clipping slot 301 are circumscribed with a leg clipping slot 303 , and the leg clipping slot 303 and the ankle clipping slot 301 transition through an arc. The arc transition can prevent the user's feet and legs from being hurt, and a pad made of soft materials, such as sponge, can also be set on the inner wall of the card slot. For the feet of two people, the width of the leg clip slot 303 is wider than the width of the ankle clip slot 301 .

The bottom of the baffle plate 4 is provided with a limit plate 401 , the limit plate 401 is provided with a circular hole, the top plate 112 is provided with a limit port 107 that cooperates with the limit plate 401 , and the bottom of the top plate 112 is located on both sides of the limit port 107 A fixing plate 110 is provided. The fixing plate 110 is provided with a second straight slot 111 , and the baffle plate 4 is connected by a second bolt 402 passing through the round hole and the second straight slot 111 . The user's back rests on the baffle plate 4, and the baffle plate 4 can be adjusted to accommodate people of different heights.

The lower end surface of the ankle clipping slot 301 is flush with the upper end surface of the top plate 112 , and the two-way screw 2 is located below the top plate 112 to ensure the comfort of the user.

A connecting plate 109 connected to the top plate 112 is disposed at the middle position of the limiting column 106 . The connecting plate 109 can limit the moving distance of the slider 3 .

The turntable 5 is provided with a weight-reducing hole 503, and the ankle clip slot 301 or the leg clip slot 303 is provided with a limit structure, which can be limited by a door bolt structure, an iron chain hook or an elastic rope. Use it according to the usage, the purpose is to prevent the user's legs from getting out of the card slot.

The turntable 5 is provided with a straight slot one 501, the hinge shaft 505 is arranged in the straight slot one 501, the bottom end of the hinge shaft 505 is provided with a fixing nut 502, and the hinge shaft 505 is located above the fixing nut 502. The shaft 505 is connected to the turntable 5 through the nut 504, the circular base 1 is provided with a circular hole 108 concentrically, the straight slot 1 501 is located in the circular hole 108, and the middle position of the two-way screw 2 is the optical axis.

One end of the two-way screw 2 protrudes from the vertical plate to connect to the drive device. The drive device can be a manual handle 201, or a two-way motor with a reducer. If the two-way motor is used, the hinge shaft 505 must be adjusted. The distance of the slider 3 to avoid injury to the user. The motor can increase the control structure in the prior art to control the timing forward and reverse rotation of the motor.

During use, if manual driving is used, only the position of the baffle 4 can be adjusted. If motor driving is used, the position of the hinge shaft 505 can be adjusted according to the height of the user, so as to limit the maximum distance between the two sliders 3, so that To avoid the distance between the two sliders 3 being too large, after the adjustment, the user places the foot in the ankle slot 301, and the slider 3 will move under the rotation of the two-way screw 2, so as to achieve the effect of stretching the ligament.

The undescribed technical features of the present invention can be realized by or using the prior art, and will not be repeated here. Of course, the above descriptions are not intended to limit the present invention, and the present invention is not limited to Changes, modifications, additions or substitutions made by those of ordinary skill within the essential scope of the present invention should also belong to the protection scope of the present invention.

Claims (8)

1. A ligament passive stretching device is characterized in that, comprises a circular base, and is provided with circular groove concentrically on the circular base, is provided with a turntable in the circular groove, and the side of the circular base is provided with a turntable. The extension plate is externally connected, and four extension plates are evenly distributed in the circumferential direction. The extension plate is provided with a vertical plate, the top of the vertical plate is connected by a top plate, and a two-way screw is arranged between the left and right vertical plates. Both ends are provided with sliding blocks through threaded connection, the top plate is provided with a rectangular opening between the left and right vertical plates, the sliding block is arranged in the rectangular opening, and the top of the sliding block is provided with a front-to-rear direction opening. Ankle card slot, the upper end face of the turntable is symmetrically provided with a hinge shaft, the turntable and the slider are respectively connected by connecting rods, one end of the connecting rod is hinged at the bottom center of the slider, and the other end is hinged On the hinge shaft, baffles are symmetrically arranged in the front-rear direction on the top plate, and the baffles are located on both sides of the rectangular opening. 2 . The passive ligament stretching device according to claim 1 , wherein two limit posts are fixedly arranged between the left and right vertical plates and inside the rectangular opening, and the limit posts are symmetrically arranged. 3 . , limit slots are arranged on both sides of the bottom of the slider, and the limit posts are arranged in the limit slots. 3 . The passive ligament stretching device according to claim 1 , wherein the middle position of the ankle clipping slot is divided into two parts by a rectangular slot, the two ends of the ankle clipping slot are externally provided with leg clipping slots, and the The leg clipping slot and the ankle clipping slot transition through an arc. 4 . The passive ligament stretching device according to claim 1 , wherein a limiting plate is provided at the bottom of the baffle plate, a circular hole is provided on the limiting plate, and a A limit opening matched with a limit plate, a fixing plate is arranged at the bottom of the top plate and on both sides of the limit opening, and a straight notch is arranged on the fixing plate, and the baffle passes through the circular hole. and the bolted connection of the straight slot. 5 . The passive ligament stretching device according to claim 1 , wherein the lower end surface of the ankle clipping groove is flush with the upper end surface of the top plate, and the two-way screw is located below the top plate. 6 . 6 . The passive ligament stretching device according to claim 2 , wherein a connecting plate connected to the top plate is arranged at a middle position of the limiting column. 7 . 7 . The passive ligament stretching device according to claim 3 , wherein a weight reduction hole is provided on the turntable, and a limiting structure is provided on the ankle clipping slot or the leg clipping slot. 8 . 8 . The passive ligament stretching device according to claim 1 , wherein a straight slot is arranged on the turntable, the hinge shaft is arranged in the straight slot, and the bottom end of the hinge shaft is arranged with a fixed The hinge shaft is provided with an external thread above the fixing nut, the hinge shaft is connected to the turntable through the nut, the circular base is concentrically provided with a circular hole, and the straight slot is located at the inside the circular hole.

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