CN216824687U

CN216824687U - Shank stretching device for sports education

Info

Publication number: CN216824687U
Application number: CN202122363720.2U
Authority: CN
Inventors: 张志宏
Original assignee: Cangzhou Pulse Sports Equipment Co ltd
Current assignee: Cangzhou Pulse Sports Equipment Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-06-28
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a shank stretching device for sports education relates to sports fitness technical field, comprising a main body, the spout has all been seted up to the inside wall around the main part, and the equal sliding connection in inside of every spout has the slider, and the outer end fixedly connected with lifter of slider, inside wall from the top down of main part have first slide bar and second slide bar in proper order sliding connection, and first spring has been cup jointed to the surface of second slide bar, and the first button of left surface fixedly connected with of second slide bar, the left side wall of lifter set up a plurality of with the lock groove of first slide bar looks adaptation. This shank stretching device for sports education combines the shape that can make the third slide bar reciprocate through the terminal surface of second slide bar and third slide bar bottom surface, can make the second spring remove about through the cooperation of the upper surface of third slide bar and dead slot and make first slide bar and lock groove carry out the block, has guaranteed not to take place relative movement between lifter and the main part.

Description

Shank stretching device for sports education

Technical Field

The utility model relates to a sports body-building technical field specifically is a shank stretching device for sports education.

Background

Physical exercise is a physical activity process aiming at developing the body, improving the health, enhancing the constitution and entertaining the mind and body by combining various physical exercise means with natural force and sanitary measures, is a main form of group physical exercise, plays an important role in promoting the growth and development of the human body, culturing the body building state and preventing diseases and the like, and needs to stretch the straight body before training in physical exercise items to prevent the body from being pulled and injured during training, so that leg stretching exercise needs to be performed before exercise.

In sports teaching, utilize the rod-like object of railing as supplementary to the tensile motion of shank mostly, stretch to thigh rear side, because current railing is highly uniform more, can not adjust, can cause certain uncomfortable sense when the student of co-altitude not uses, lead to the fact certain influence to the tensile effect of shank, so to above-mentioned problem, now propose a shank stretching device for sports education.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a shank stretching device for sports education has solved the problem that different height students' railing height is not adjustable when carrying out the shank and stretch.

In order to achieve the above object, the utility model provides a following technical scheme: a leg stretching device for physical education comprises a main body, wherein sliding grooves are formed in the front inner side wall and the rear inner side wall of the main body, a sliding block is connected to the inner side of each sliding groove in a sliding mode, a lifting rod is fixedly connected to the outer end of each sliding block, a first sliding rod and a second sliding rod are sequentially connected to the inner side wall of the main body from top to bottom in a sliding mode, a first spring is sleeved on the outer surface of each second sliding rod, a first button is fixedly connected to the left side surface of each second sliding rod, a plurality of buckling grooves matched with the first sliding rods are formed in the left side wall of each lifting rod, a hollow groove is formed in the upper surface of each first sliding rod, the inner side wall of each hollow groove is inclined, a second spring is fixedly connected to the right side surface of each sliding rod, the other end of each second spring is fixedly connected with the right side wall of the main body, a fixing block is fixedly connected to the inner side wall of the main body, a third sliding rod matched with the hollow groove and the second sliding rods is slidably connected to the inner side surface of the fixing block, the upper surface of the lifting rod is fixedly connected with a connecting shaft, two annular grooves are formed in the outer surface of the lifting rod and located between the second handles, a second sliding block is connected to the inner portion of each annular groove in a sliding mode, a leg pressing plate is fixedly connected to the outer end face of each second sliding block, a plurality of inserting grooves are formed in the outer surface of the connecting shaft close to the right end face of the leg pressing plate, each inserting groove is internally provided with a pin shaft, the pin shaft is connected with the leg pressing plate in a sliding mode, a fixing plate is fixedly connected to the outer surface of the pin shaft, a third spring is sleeved on the outer surface of the pin shaft, and the third spring is located between the leg pressing plate and the fixing plate.

As a further description of the above technical solution, a fixing seat is fixedly connected to the bottom surface of the main body, and the whole leg stretching device is fixed to the bottom surface.

As a further description of the above technical solution, the outer surface of the third sliding rod is fixedly connected with a limiting block, so as to prevent the third sliding rod from falling down due to gravity.

As further description of the technical scheme, the front side and the back side of the lifting rod are fixedly connected with a first handle, so that the lifting rod is convenient to lift.

As a further description of the above technical solution, two second handles are fixedly connected to the outer surface of the connecting shaft, and the second handles are grasped by hands when stretching the legs, so as to prevent the body from falling down due to inclination.

As a further description of the above technical solution, the outer surface of the leg pressing plate is fixedly connected with two limiting plates, and the outer end surface of the pin shaft is fixedly connected with a second button, so that the legs can be fixed within a certain range, and the stretching effect of the legs is improved.

As a further description of the above technical solution, the outer surface of the second sliding rod is fixedly connected with a second limiting block, so as to prevent the second sliding rod from being ejected due to the elastic force of the second spring.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. the utility model discloses a terminal surface of second slide bar and the shape combination of third slide bar bottom surface can make the third slide bar reciprocate, the cooperation of the upper surface through the third slide bar and dead slot can make the second spring remove about and make first slide bar carry out the block with the lock groove, relative movement does not take place between lifter and the main part has been guaranteed, it can guarantee through having placed the round pin axle in the inside of slot that the leg pressing board can not slide in the ring channel, it can make the round pin axle be in the inside of slot all the time to cup joint the third spring through the surface at the round pin axle, the angle adjustability of leg pressing board has been guaranteed.

2. The utility model discloses a bottom surface fixedly connected with fixing base of main part is fixed with the bottom surface to whole shank stretching device, through two second handles of the outer fixed surface of connecting axle, grasps the second handle with the hand when carrying out the shank is tensile, prevents to fall down because of the health slope, two limiting plates of the outer fixed surface of leg pressing plate are connected with, the outer terminal surface fixedly connected with second button of round pin axle can be fixed moving the certain limit to the shank, has reached the tensile beneficial effect of promotion shank.

Drawings

Fig. 1 is a schematic view of the overall structure of a leg stretching device for physical education according to the present invention;

fig. 2 is a sectional view of a front view of a leg stretching device for sports education according to the present invention;

fig. 3 is a right side view of a leg stretching device for physical education according to the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 5 is an enlarged schematic view of the structure at B in fig. 3 according to the present invention.

In the figure: 1-a body; 2-a first handle; 3-a lifting rod; 4-a second handle; 5-a limiting plate; 6-an annular groove; 7-a leg pressing plate; 8-a pin shaft; 9-a connecting shaft; 10-slot; 11-a first button; 12-a first spring; 13-a fixed seat; 14-a second slide bar; 15-a third slide bar; 16-fixing block; 17-a limiting block; 18-a second spring; 19-a chute; 20-a slide block; 21-empty groove; 22-a first sliding bar; 23-a fastening groove; 24-a third spring; 25-a third slide bar; 26-a second slide; 27-a second button; 28-second stopper.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a leg stretching device for physical education, comprising a main body 1, a fixing base 13 fixedly connected to the bottom of the main body 1, a plurality of sliding grooves 19 formed on the front and rear inner walls of the main body 1, a sliding block 20 slidably connected to the inside of each sliding groove 19, a lifting rod 3 fixedly connected to the outer end of each sliding block 20, a first handle 2 fixedly connected to the front and rear of each lifting rod 3 for facilitating the lifting of the lifting rod 3, a first sliding rod 22 and a second sliding rod 14 slidably connected to the inner wall of the main body 1 from top to bottom, a first spring 12 sleeved on the outer surface of the second sliding rod 14, a second stopper 28 fixedly connected to the outer surface of the second sliding rod 14 for preventing the second sliding rod 14 from being ejected by the elastic force of the second spring 12, a first button 11 fixedly connected to the left side of the second sliding rod 14, the left side wall of the lifting rod 3 is provided with a plurality of buckling grooves 23 matched with the first sliding rod 22, the upper surface of the first sliding rod 22 is provided with a hollow groove 21, the inner side wall of the hollow groove 21 is inclined, the right side surface of the sliding rod 22 is fixedly connected with a second spring 18, the other end of the second spring 18 is fixedly connected with the right side wall of the main body 1, the inner side wall of the main body 1 is fixedly connected with a fixed block 16, the inside of the fixed block 16 is slidably connected with a third sliding rod 15 matched with the hollow groove 21 and the second sliding rod 14, the outer surface of the third sliding rod 15 is fixedly connected with a limiting block 17, the third sliding rod 15 is prevented from falling down due to gravity, the upper surface of the lifting rod 3 is fixedly connected with a connecting shaft 9, the outer surface of the connecting shaft 9 is fixedly connected with two second handles 4, the second handles 4 are grasped by hands when the legs are stretched, the falling down due to the inclination of the body is prevented, the outer surface of the lifting rod 3 is provided with two annular grooves 6, the two annular grooves 6 are positioned between the second handles 4, the inner part of each annular groove 6 is connected with a second sliding block 26 in a sliding way, the outer end surface of each second sliding block 26 is fixedly connected with a leg pressing plate 7, the outer surface of a connecting shaft 9 close to the right end surface of the leg pressing plate 7 is provided with a plurality of slots 10, a pin shaft 8 is placed in each slot 10, the outer surface of the leg pressing plate 7 is fixedly connected with two limiting plates 5, the outer end surface of the pin shaft 8 is fixedly connected with a second button 27, can fix the shank moving within a certain range, promote the tensile effect of shank, and round pin axle 8 carries out sliding connection with leg pressing plate 7, and the outer fixed surface of round pin axle 8 is connected with fixed plate 25, and the surface of round pin axle 8 has cup jointed third spring 24, and third spring 24 is located between leg pressing plate 7 and the fixed plate 25.

The working principle is as follows: when the device is lifted, firstly, the first button 11 is pressed to prevent the hand from being loosened, then the lifting rod 3 is lifted up through the first handle 2, and the first button 11 is loosened after the first button 11 is pressed, in the process, when the first button 11 is pressed, the second sliding rod 14 slides rightwards to drive the third sliding rod 15 to move upwards, the third sliding rod 15 moves upwards to enable the upper end of the third sliding rod 15 to be contacted with the empty groove 21, the first sliding rod 22 moves rightwards to enable the first sliding rod 22 to be separated from the buckling groove 23, when the first button 11 is loosened after the preset height is reached, the first sliding rod 22 moves leftwards to enable the first sliding rod 22 to slide into the buckling groove 23, so that the main body 1 and the lifting rod 3 do not slide relatively to achieve the fixing effect, when the angle of the leg pressing plate 7 is adjusted, the second button 27 is lifted to enable the pin shaft 8 to be separated from the slot 10, then, the leg pressing plate 7 is rotated, the pin shaft 8 is released after the leg pressing plate 7 reaches a proper angle, the pin shaft 8 can slide to the inside of the slot 10 under the action of the third spring 24, the leg pressing plate 7 and the connecting shaft 9 are fixed, the effect of adjusting the angle of the leg pressing plate 7 is achieved, and an exerciser can feel more comfortable during exercise.

In conclusion, in the leg stretching device for physical education, the third sliding rod 15 can move up and down by the shape combination of the end surface of the second sliding rod 14 and the bottom surface of the third sliding rod 15, the first sliding rod 22 can be clamped with the buckling groove 23 by the left and right movement of the second spring 18 by the cooperation of the upper surface of the third sliding rod 15 and the empty groove 21, so that the relative movement between the lifting rod 3 and the main body 1 is prevented, the leg pressing plate 7 can be prevented from sliding in the annular groove 6 by placing the pin shaft 8 in the slot 10, the pin shaft 8 can be always in the slot 10 by sleeving the third spring 24 on the outer surface of the pin shaft 8, so that the angle adjustability of the leg pressing plate 7 is ensured, the fixing base 13 is fixedly connected to the bottom surface of the main body 1, the whole leg stretching device is fixed to the bottom surface, the two second handles 4 are fixedly connected to the outer surface of the connecting shaft 9, grab second handle 4 with the hand when carrying out the shank and stretch, prevent to fall down because of the health slope, two limiting plates 5 of the fixed surface of leg pressing board 7, the outer terminal surface fixedly connected with second button 27 of round pin axle 8 can be fixed moving the certain limit to the shank, has reached the tensile beneficial effect of promotion shank.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A leg stretching device for sports education, bag main body (1), its characterized in that: the front inner side wall and the rear inner side wall of the main body (1) are respectively provided with a sliding groove (19), the inner part of each sliding groove (19) is respectively connected with a sliding block (20) in a sliding manner, the outer end of each sliding block (20) is fixedly connected with a lifting rod (3), the inner side wall of the main body (1) is sequentially connected with a first sliding rod (22) and a second sliding rod (14) in a sliding manner from top to bottom, the outer surface of the second sliding rod (14) is sleeved with a first spring (12), the left side surface of the second sliding rod (14) is fixedly connected with a first button (11), the left side wall of each lifting rod (3) is provided with a plurality of buckling grooves (23) matched with the first sliding rods (22), the upper surface of each first sliding rod (22) is provided with a hollow groove (21), the inner side wall of each hollow groove (21) is inclined, the right side surface of each sliding rod (22) is fixedly connected with a second spring (18), and the other end of each second spring (18) is fixedly connected with the right side wall of the main body (1), the inner side wall of the main body (1) is fixedly connected with a fixed block (16), the inner part of the fixed block (16) is connected with a third sliding rod (15) matched with the empty groove (21) and the second sliding rod (14) in a sliding manner, the upper surface of the lifting rod (3) is fixedly connected with a connecting shaft (9), the outer surface of the lifting rod (3) is provided with two annular grooves (6), the two annular grooves (6) are positioned between the second handles (4), the inner part of each annular groove (6) is connected with a second sliding block (26) in a sliding manner, the outer end surface of each second sliding block (26) is fixedly connected with a leg pressing plate (7), the outer surface of the connecting shaft (9) close to the right end surface of the leg pressing plate (7) is provided with a plurality of slots (10), a pin shaft (8) is placed in each slot (10), the pin shaft (8) is connected with the leg pressing plate (7) in a sliding manner, the outer surface of the pin shaft (8) is fixedly connected with a fixed plate (25), the outer surface of the pin shaft (8) is sleeved with a third spring (24), and the third spring (24) is positioned between the leg pressing plate (7) and the fixing plate (25).

2. A leg stretching device for sports education as set forth in claim 1, wherein: the bottom surface of the main body (1) is fixedly connected with a fixed seat (13).

3. A leg stretching device for sports education as set forth in claim 1, wherein: and the outer surface of the third sliding rod (15) is fixedly connected with a limiting block (17).

4. A leg stretching device for sports education as set forth in claim 1, wherein: the front and the back of the lifting rod (3) are both fixedly connected with a first handle (2).

5. A leg stretching device for sports education as set forth in claim 1, wherein: the outer surface of the connecting shaft (9) is fixedly connected with two second handles (4).

6. A leg stretching device for sports education as set forth in claim 1, wherein: the outer fixed surface of leg pressing board (7) is connected with two limiting plates (5), the outer terminal surface fixed connection of round pin axle (8) has second button (27).

7. A leg stretching device for sports education as set forth in claim 1, wherein: the outer surface of the second sliding rod (14) is fixedly connected with a second limiting block (28).