CN111408109A - A sports leg flexibility training device - Google Patents

Abstract

The invention discloses a leg flexibility training device for sports, which comprises a seat plate, wherein three brake trundles are fixed on the bottom end surface of the seat plate, the brake trundles are distributed in an isosceles triangle shape, the bottom end surface of the seat plate is rotatably connected with a first gear through a rotating shaft, one side of the first gear is in meshed connection with a second gear, the second gear is rotatably connected with a shell of the seat plate through a rotating shaft, the second gear and the first gear both rotate through a power assembly, L-shaped leg supporting plates are coaxially arranged at the bottom ends of the second gear and the first gear, and the power assembly comprises a screw.

Description

A sports leg flexibility training device

technical field

The invention relates to the technical field of training devices, in particular to a leg flexibility training device for sports.

Background technique

Physical education often involves the training of explosive power, endurance, flexibility and strength of the legs, and the training of leg flexibility often uses training devices to assist athletes in training both legs at the same time.

According to a sports leg flexibility training device provided by the patent document with the application number of CN201921171236.6, it can be known that the product includes a pushing device and a traction device; one end of the pushing device is connected with the traction device; One end is connected with the traction device; the push device includes a driving device and a displacement device; the driving device is connected with the displacement device, and one end of the displacement device is connected with the traction device; this product can adjust the training intensity, allowing users to get the best results Better training, and the ability to train both legs at the same time effectively improves training efficiency.

However, the existing training device still has defects. For example, the existing training device generally uses a cylinder as a driving device, which makes it difficult for athletes to adjust the training intensity according to their own needs when the training device is in use. Exceeding the athlete's limit or pushing too fast, resulting in ligament strain.

SUMMARY OF THE INVENTION

The present invention mainly provides a leg flexibility training device for sports to solve the technical problems raised in the above-mentioned background art.

The technical solution adopted by the present invention to solve the above technical problems is as follows: a sports leg flexibility training device of the present invention includes a seat plate, and three brake casters are fixed on the bottom surface of the seat plate, and a plurality of the brake The casters are distributed in an isosceles triangle, and the bottom surface of the seat plate is rotatably connected to a first gear through a rotating shaft, one side of the first gear is meshed and connected with a second gear, and the second gear is connected to the seat through a rotating shaft. The shells of the plates are rotatably connected, the second gear and the first gear are both rotated by the power assembly, and the bottom ends of the second gear and the first gear are coaxially provided with L-shaped leg support plates, The bottom surface of each L-shaped leg support plate is fixed with a universal wheel abutting against the ground, the power assembly includes a screw, and both ends of the screw are fixed to the seat plate through a bearing seat The bottom end surface of the screw is intermeshed with the first gear.

Further, the screw rod is a hollow structure, an extension rod is arranged inside the screw rod, the extension rod is slidably connected with the inner wall of the screw rod, and a connecting rod is fixed at one end of the extension rod away from the screw rod. A ball is embedded in the surface of one side of the connecting rod away from the screw rod, and a handle is fixed at one end of the ball away from the connecting rod.

Further, the handle fits into a groove, the groove is opened on a side surface of the connecting rod close to the ball, and the length of the groove is greater than the length of the handle.

Further, the seat plate is symmetrically provided with two inferior arc grooves, and the groove body of each inferior arc groove is slidably connected with a sliding column, and the two sliding columns are respectively fixed to the first gear and the the top surface of the second gear.

Further, the top surfaces of the seat plate and the L-shaped leg support plate are both bonded with soft pads through Velcro.

Further, a gear plate is fixed on one side surface of each L-shaped leg support plate close to the other L-shaped leg support plate.

Further, an arc-shaped groove is defined on a surface of each of the gear plates away from the other one of the gear plates.

Further, a backrest is fixed on a side surface of the seat plate away from the L-shaped leg support plate.

Further, the first gear and the second gear are both spur gears and have the same diameter.

Further, the seat plate is a carbon fiber material plate.

Compared with the prior art, the beneficial effects of the present invention are:

First, the present invention can adjust the training intensity at any time according to the training needs of the athlete, reduce the injury suffered by the athlete during training, and improve the safety of the athlete when using the training device. The cooperation of the screw makes the screw rotate, because the screw meshes with the first gear, which drives the first gear to rotate, and because the first gear and the second gear mesh with each other, the first gear drives the L-shaped legs arranged coaxially with it. The support plate and the second gear drive the L-shaped leg support plate arranged coaxially with the L-shaped leg support plate to perform angular displacement, and continue to rotate the screw until the angle between the two L-shaped leg support plates meets the training needs of the athletes. Inverted, thereby driving the included angle of the two L-shaped leg support plates to gradually decrease, preventing the L-shaped leg support plates from moving too fast and the athlete cannot adapt.

Second, the present invention can stimulate the athlete, prevent the athlete from giving up training frequently, and push the extension rod to make it slide inside the screw rod, thereby hiding the handle on the extension rod at the bottom end of the seat plate, so that the athlete can use the screw rod to adjust well. After the position of the L-shaped leg support plate, the time of turning the screw when the athlete wants to give up training due to willpower is prolonged, and the athlete is stimulated to continue training.

Third, the present invention can limit the angle between the L-shaped leg support plates, the first gear and the second gear slide in the groove of the inferior arc groove opened on the seat plate through the sliding column thereon, thereby restricting the first gear and the second gear. The angular displacement of the first gear and the second gear simultaneously defines the rotation trajectories of the first gear and the second gear, thereby preventing the rotation angle of the first gear and the second gear from being too large and causing the support legs on the first gear and the second gear. The angle of the L-shaped leg support plate of the upper part is too large and the ligament is strained.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the structural representation of the seat plate of the present invention;

3 is a schematic structural diagram of an L-shaped leg support plate of the present invention;

Fig. 4 is the structural representation of the present invention;

FIG. 5 is a schematic diagram of the partial structure of the power assembly of the present invention.

In the figure: 1, seat plate; 11, brake caster; 12, first gear; 13, second gear; 14, L-shaped leg support plate; 15, gear plate; 151, arc groove; 16, cushion ;17, sliding column; 18, inferior arc groove; 19, universal wheel; 2, power assembly; 21, screw rod; 22, extension rod; 23, connecting rod; 24, ball; 25, handle; 26, groove; 3. Backrest.

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the description in the text. rather, these embodiments are provided so that this disclosure will be thorough and complete.

It should be noted that when an element is referred to as being "fixed" to another element, it may be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it may be The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for the purpose of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated by one of ordinary skill in the technical field of the present invention, and the terminology used herein in the description of the present invention is used for the purpose of describing specific embodiments. For the purpose of, and not intended to limit, the present invention, as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

As shown in Figures 1-4, a sports leg flexibility training device of the present invention includes a seat plate 1, the seat plate 1 is a carbon fiber material plate, and the bottom surface of the seat plate 1 is fixed with three Brake casters 11, a plurality of the brake casters 11 are distributed in an isosceles triangle, and the bottom surface of the seat plate 1 is connected to a first gear 12 through a rotating shaft, and one side of the first gear 12 is meshed with a second gear 12. Gear 13, the second gear 13 is rotatably connected to the housing of the seat plate 1 through a rotating shaft, the second gear 13 and the first gear 12 are both rotated by the power assembly 2, the second gear 13 and The bottom end of the first gear 12 is coaxially provided with an L-shaped leg support plate 14, and the bottom end surface of each L-shaped leg support plate 14 is fixed with a universal wheel 19 abutting against the ground. The power assembly 2 includes a screw 21 . Both ends of the screw 21 are fixed to the bottom surface of the seat plate 1 through a bearing seat. The screw 21 and the first gear 12 mesh with each other.

Please refer to FIGS. 1 and 5 , the screw 21 is a hollow structure, an extension rod 22 is arranged inside the screw 21 , and the extension rod 22 is slidably connected with the inner wall of the screw 21 , so that the athlete can push the extension rod 22 Make it slide inside the screw 21, so that the handle 25 on the extension rod 22 is hidden at the bottom end of the seat plate 1, so that the athlete can use the screw 21 to adjust the position of the L-shaped leg support plate 14. The time to rotate the screw 21 when you want to give up training due to willpower stimulates the athlete to continue training. The end of the extension rod 22 away from the screw 21 is fixed with a connecting rod 23 , and the connecting rod 23 is away from one end of the screw 21 . A ball 24 is embedded on the side surface, and a handle 25 is fixed at one end of the ball 24 away from the connecting rod 23, so that the movement can be carried out by holding the handle 25, so that the ball 24 on the handle 25 surrounds the upper connecting rod 23. The screw 21 revolves, and the screw 21 is driven to rotate, at this time, the arm of the athlete is stretched, thereby facilitating the athlete to rotate the screw 21. The handle 25 fits with the groove 26, and the groove 26 is opened in the connecting rod 23 is close to the side surface of the ball 24, so that the player can insert the handle 25 into the groove body of the groove 26 to hide the groove 26 and save the space of the power assembly 2. The length of the groove 26 is longer than the handle 25 The length is so that the athlete can clip his fingers between the groove 26 and the handle 25 embedded in it, so that the handle 25 can be pulled out.

In an embodiment, please refer to FIG. 1 , a backrest 3 is fixed on the side surface of the seat plate 1 away from the L-shaped leg support plate 14 , so that the athlete can put his back against the backrest 3 on the seat plate 1 to perform. rest.

Please refer to FIG. 1 again, the top surfaces of the seat plate 1 and the L-shaped leg support plate 14 are both bonded with soft pads 16 through Velcro, so that the athlete can pass the seat plate 1 and the L-shaped leg support plate. The upholstery 16 on the 14 improves the comfort of the seat plate 1 and the L-shaped leg support plate 14 when in use.

Please refer to FIGS. 1 and 2 again, each of the L-shaped leg support plates 14 is fixed with a gear plate 15 on one side surface of each of the L-shaped leg support plates 14 close to the other L-shaped leg support plate 14. The L-shaped leg supports The plate 14 blocks the athlete's calf through the gear plate 15 on it, so as to prevent the athlete's calf from being separated from the L-shaped leg support plate 14 and cannot achieve the movement effect, and each of the gear plates 15 is far away from the other. One side surface of the position plate 15 is provided with arc grooves 151, so that the athlete can insert the lower leg into the arc groove 151 of the L-shaped leg support plate 14, so that the position plate 15 fits the player's lower leg.

In an embodiment, please refer to FIG. 4 , the seat plate 1 is symmetrically provided with two inferior arc grooves 18 , and the groove body of each inferior arc groove 18 is slidably connected with a sliding column 17 , and the two sliding columns 17 respectively fixed on the top surfaces of the first gear 12 and the second gear 13, the first gear 12 and the second gear 13 are both spur gears and have the same diameter, so that the first gear 12 and the second gear 13 are When the 13 rotates, the first gear 12 and the second gear 13 slide in the groove of the inferior arc groove 18 opened on the seat plate 1 through the sliding column 17 thereon, thereby restricting the movement of the first gear 12 and the second gear 13. At the same time of angular displacement, the rotation trajectories of the first gear 12 and the second gear 13 are specified, so as to prevent the rotation angle of the first gear 12 and the second gear 13 from being too large, which will lead to the support legs on the first gear 12 and the second gear 13. The included angle of the L-shaped leg support plate 14 is too large to cause ligament strain.

The specific operation mode of the present invention is as follows:

When the athlete uses the flexibility training device for flexibility training, the athlete first sits on the seat plate 1, clamps the brake casters 11 at the bottom of the seat plate 1, and extends his legs on the L-shaped leg support plate 14. , hold the handle 25 with your hand, so that the ball 24 on the handle 25 revolves around the screw 21 provided through the upper connecting rod 23, and drives the screw 21 to rotate, because the screw 21 meshes with the first gear 12, thereby The torque is transmitted to the first gear 12 and drives the first gear 12 to rotate. Since the first gear 12 and the second gear 13 mesh with each other, the first gear 12 drives the L-shaped leg support plates 14 and the second The gear 13 drives the L-shaped leg support plate 14 arranged coaxially with it to perform angular displacement, and continues to rotate the screw 21 until the angle between the two L-shaped leg support plates 14 meets the training needs of the athlete. At this time, push the extension rod 22 A part of the extension rod 22 enters the screw 21. After the training is completed, the above steps are reversed to make the screw 21 reverse, thereby driving the angle between the two L-shaped leg support plates 14 to decrease.

The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above manner, as long as the non-substantial improvement of the method concept and technical solution of the present invention is adopted, or the present invention is modified without improvement. If the concept and technical solutions of the invention are directly applied to other occasions, they all fall within the protection scope of the present invention.

Claims (10)

1. The leg flexibility training device for sports comprises a seat (1) and is characterized in that three brake casters (11) are fixed on the bottom end surface of the seat (1), the brake casters (11) are distributed in an isosceles triangle shape, the bottom end surface of the seat (1) is rotatably connected with a first gear (12) through a rotating shaft, one side of the first gear (12) is connected with a second gear (13) in a meshed mode, the second gear (13) is rotatably connected with a shell of the seat (1) through a rotating shaft, the second gear (13) and the first gear (12) rotate through a power assembly (2), L-shaped leg supporting plates (14) are coaxially arranged at the bottom ends of the second gear (13) and the first gear (12), and universal wheels (19) which are abutted to the ground are fixed on the bottom end surfaces of L-shaped leg supporting plates (14);

the power assembly (2) comprises a screw rod (21), two ends of the screw rod (21) are fixed on the bottom end surface of the seat plate (1) through bearing seats, and the screw rod (21) is meshed with the first gear (12).

2. The leg flexibility training device for sports according to claim 1, wherein the screw rod (21) is of a hollow structure, an extension rod (22) is arranged inside the screw rod (21), the extension rod (22) is slidably connected with the inner wall of the screw rod (21), a connecting rod (23) is fixed to one end, away from the screw rod (21), of the extension rod (22), a ball (24) is embedded in one side surface, away from the screw rod (21), of the connecting rod (23), and a handle (25) is fixed to one end, away from the connecting rod (23), of the ball (24).

3. A sports leg flexibility training device as claimed in claim 2, wherein said handle (25) is fitted with a recess (26), said recess (26) being formed in a side surface of said link (23) adjacent to said ball (24), said recess (26) having a length greater than a length of said handle (25).

4. The leg flexibility training device for sports according to claim 1, wherein the seat plate (1) is symmetrically provided with two inferior arc grooves (18), a sliding column (17) is slidably connected in a groove body of each inferior arc groove (18), and the two sliding columns (17) are respectively fixed on the top end surfaces of the first gear (12) and the second gear (13).

5. A sports leg flexibility training device as claimed in claim 1, wherein said seat board (1) and said L-shaped leg support board (14) are each attached at their top end surface with a soft pad (16) by means of velcro.

6. A sports leg flexibility training device as claimed in claim 1, wherein a stop plate (15) is fixed to a side surface of each L-shaped leg support plate (14) adjacent to the other L-shaped leg support plate (14).

7. A training device for the flexibility of sports legs, according to claim 6, wherein an arc-shaped slot (151) is formed on one side surface of each of the shift plates (15) far from the other shift plate (15).

8. A sports leg flexibility training device as claimed in claim 1, wherein a backrest (3) is fixed to a side surface of said seat plate (1) remote from said L-shaped leg support plate (14).

9. A sports leg flexibility training device according to claim 1, wherein said first gear (12) and said second gear (13) are spur gears and have equal diameters.

10. A sports leg flexibility training device according to claim 1, wherein said seat plate (1) is a carbon fiber plate.

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