CN210495075U

CN210495075U - Leg pressing device for physical education

Info

Publication number: CN210495075U
Application number: CN201921209252.XU
Authority: CN
Inventors: 杨岭; 陈勤
Original assignee: Hunan University of Humanities Science and Technology
Current assignee: Hunan University of Humanities Science and Technology
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-05-12
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a leg pressing device is used in sports teaching, including bottom plate and apron, curb plate fixed connection through half-cylinder shape between bottom plate and the apron, the dead axle rotates on the axis of bottom plate and is connected with the worm, and the bilateral symmetry formula meshing of worm is connected with two turbines, and the central dead axle of turbine rotates and connects on the bottom plate, be fixed with the leg expanding rod on the turbine, and be provided with adjustable cardboard on the leg expanding rod. This kind of leg pressing ware for sports teaching can be according to the impression of oneself through the tensile degree of turbine worm and screw thread transmission regulation self shank, and the security is high moreover and avoids pulling the injury to training person's shank, helps helping the training person to keep static tensile to improve the training effect, can also be according to the position of training person's shank length adjustment cardboard, the practicality is high.

Description

Leg pressing device for physical education

Technical Field

The utility model relates to a sport equipment field specifically is a leg pressing ware is used in sports teaching.

Background

Before and during physical exercise, some stretching actions are needed to keep the flexibility of the body so as to avoid the injury caused by the physical exercise. The use of the legs in sports is important and therefore also for stretching of the legs. Usually, joints, ligaments and muscles of the legs are stretched by pressing the legs, such as forward bending of sitting legs, transverse splitting of legs and vertical splitting of legs, so that the stretching effect on the legs is good. However, these leg pressing actions are difficult for beginners to perform the Laishui, and are difficult to grasp, and they are completed only by a gradual process.

To solve the above problems, we propose a leg press for physical education.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a leg pressing ware for sports teaching, in order to solve above-mentioned technical problem, the utility model provides a following technical scheme:

the utility model relates to a leg pressing ware is used in sports teaching, including bottom plate and apron, curb plate fixed connection through half-cylinder shape between bottom plate and the apron, the dead axle rotates on the axis of bottom plate and is connected with the worm, and the bilateral symmetry formula meshing of worm is connected with two turbines, and the central dead axle of turbine rotates and connects on the bottom plate, be fixed with the leg expanding pole on the turbine, and be provided with adjustable cardboard on the leg expanding pole.

Preferably, the central axis of the worm coincides with the symmetry line of the side plate, and a turntable is fixed at one end of the worm, which points to the outer side of the bottom plate.

Preferably, the leg expanding rod is provided with a groove along the length direction of the leg expanding rod, the inner fixed shaft of the groove is rotatably connected with a screw rod, the screw rod is in threaded connection with a sliding block, and the clamping plate is fixed on the sliding block.

Preferably, the clamping plate is U-shaped, and the opening of the clamping plate faces upwards.

Preferably, a T-shaped handle is fixed on the bottom plate, and the handle and the turntable are located on the same side of the bottom plate.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: can adjust the tensile degree of self shank through turbine worm and screw thread transmission according to the impression of oneself, the security is high moreover and avoids hindering the pulling of training person shank, helps helping the training person to keep static tensile to improve the training effect, can also adjust the position of cardboard according to training person's shank length, the practicality is high.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic cross-sectional structure diagram of a leg pressing device for physical education of the present invention;

FIG. 2 is a schematic cross-sectional view of a leg press for physical education according to the present invention;

fig. 3 is the utility model relates to a leg pressing ware assembly structure sketch map for sports teaching.

In the figure: 1-a bottom plate; 2-cover plate; 3-a leg expanding rod; 4-a turbine; 5-a screw; 6-a slide block; 7-clamping plate; 8-rotating disc; 9-a rod; 10-side plate; 11-worm.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-3, a leg pressing device for physical education comprises a bottom plate 1 and a cover plate 2, wherein the bottom plate 1 is fixedly connected with the cover plate 2 through a semi-cylindrical side plate 10, a worm 11 is rotatably connected to a dead axle on a central axis of the bottom plate 1, two turbines 4 are symmetrically meshed with each other on two sides of the worm 11, the center dead axle of each turbine 4 is rotatably connected to the bottom plate 1, a leg expanding rod 3 is fixed on each turbine 4, and an adjustable clamping plate 7 is arranged on each leg expanding rod 3.

In this embodiment, the central axis of the worm 11 coincides with the symmetry line of the side plate 10, and a turntable 8 is fixed at one end of the worm 11, which points to the outer side of the bottom plate 1.

In the embodiment, a groove along the length direction of the leg expanding rod 3 is formed in the leg expanding rod 3, a screw rod 5 is rotatably connected to the inner fixed shaft of the groove, a sliding block 6 is connected to the screw rod 5 in a threaded manner, and a clamping plate 7 is fixed on the sliding block 6.

In this embodiment, the card board 7 is U-shaped and has an upward opening.

In this embodiment, a T-shaped handle bar 9 is fixed on the bottom plate 1, and the handle bar 9 and the turntable 8 are located on the same side of the bottom plate 1.

The utility model discloses a principle and advantage: this kind of leg pressing ware is used in sports teaching when carrying out the leg pressing exercise, uses as follows:

when the trainer exercises of seat leg-splitting forward bending or leg-splitting cross-forking, the trainer rotates the screw rod 5 on the leg-expanding rod 3 according to the length of the leg of the trainer so that the screw rod 5 drives the slide block 6 to move in the groove under the action of screw transmission, thereby adjusting the position of the clamping plate 7 on the leg-expanding rod 3 to adapt to the length of the leg of the trainer, after the position of the clamping plate 7 is adjusted, the trainer sits on the cover plate 2 and faces the handle rod 9, then two feet are respectively clamped on the corresponding clamping plates 7, the hand of the trainer rotates the worm 11 through the rotating turntable 8, the worm 11 rotates to drive the turbines 4 on two sides of the worm 11 to rotate according to the rotating directions opposite to each other, thereby increasing or decreasing the opening angles of the two leg-expanding rods 3 and further realizing the stretching training of the leg of the trainer, and the trainer can adjust the opening angles of the two leg-expanding rods 3 according to the actual feeling of the trainer during the training, moreover, the transmission stability between the worm 11 and the worm 4 is high, so that the strain on the legs of the trainer caused by overlarge opening angle of the leg expanding rod 3 is avoided, and the worm 11 and the worm wheel 4 generally have axial self-locking performance, so that the leg expanding rod 3 can be kept stable and still under the condition of a certain opening angle, the static stretching of the trainer is facilitated to be kept, and the training effect is improved;

when a leg splitting vertical fork exercise is carried out, a trainer rotates the turntable 8 to enable the worm 11 to rotate, the opening angles of the two leg expanding rods 3 are driven to be enlarged through the two turbines 4 until the two leg expanding rods 3 are positioned in a straight line and are respectively attached to the two ends of the side plate 10, an assistant person rotates the screw 5 to enable the screw 5 to drive the sliding blocks 6 to be close to the corresponding turbines 4 through threads until the end parts of the grooves are reached, then the two feet of the trainer are respectively clamped in the clamping plates 7, the trainer faces one of the leg expanding rods 3, the handle rod 9 is positioned on one side of the trainer, the body of the trainer is kept stable by holding the handle rod 9, the two legs are stretched straight, the assistant person slowly rotates the screw 5 to enable the two sliding blocks 6 to be far away from each other in the corresponding grooves, namely the movement of the sliding blocks 6 enables the opening angles of the two legs of the trainer to be enlarged continuously, the two legs of the trainer tend to, let the auxiliary staff help rotate screw rod 5 and thus adjust the position of slider 6, thereby avoid the too big pull injury that leads to the training person shank of shank field angle, and the screw thread has axis auto-lock characteristic, can keep the stable removal of slider 6, also can keep slider 6 at a certain position of screw rod 5 remain stable motionless, help the training person to keep static tensile, thereby improve the training effect, avoid making the injury that the sudden increase of both legs field angle brought because of the sudden pressure that self weight leads to can not be controlled, and the safety is improved.

Finally, it should be noted that: 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 modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a leg pressing ware is used in sports teaching, includes bottom plate (1) and apron (2), its characterized in that: the novel bottom plate is characterized in that the bottom plate (1) and the cover plate (2) are fixedly connected through a semi-cylindrical side plate (10), a worm (11) is rotationally connected to a dead axle on a central axis of the bottom plate (1), two turbines (4) are symmetrically meshed with each other in two sides of the worm (11), a center dead axle of each turbine (4) is rotationally connected to the bottom plate (1), a leg expanding rod (3) is fixed to each turbine (4), and an adjustable clamping plate (7) is arranged on each leg expanding rod (3).

2. The leg press for physical education as claimed in claim 1, wherein: the central axis of the worm (11) is superposed with the symmetry line of the side plate (10), and a turntable (8) is fixed at one end of the worm (11) pointing to the outer side of the bottom plate (1).

3. The leg press for physical education as claimed in claim 1, wherein: the leg expanding rod (3) is provided with a groove along the length direction of the leg expanding rod (3), a fixed shaft in the groove is rotatably connected with a screw rod (5), the screw rod (5) is connected with a sliding block (6) in a threaded manner, and a clamping plate (7) is fixed on the sliding block (6).

4. The leg press for physical education as claimed in claim 3, wherein: the clamping plate (7) is U-shaped, and the opening of the clamping plate is upward.

5. The leg press for physical education as claimed in claim 2, wherein: a T-shaped handle rod (9) is fixed on the bottom plate (1), and the handle rod (9) and the rotary disc (8) are located on the same side of the bottom plate (1).