Ligament stretcher helpful for children to grow tall

Abstract

The utility model relates to the technical field of ligament stretching, in particular to a ligament stretcher helpful for children to grow tall, which comprises a positioning block, a long bolt is inserted in the positioning block in a threaded manner, a turntable is fixedly mounted at one end of the long bolt, rotating parts are arranged on two sides of the positioning block, L-shaped parts are fixedly mounted at the tops of the rotating parts, and the L-shaped parts are fixedly mounted at the bottoms of the rotating parts. A first spring is fixedly installed on the L-shaped piece, a C-shaped piece is fixedly installed at the other end of the first spring, a hand-screwing bolt is inserted into the top of the L-shaped piece in a threaded mode, and the end of the hand-screwing bolt abuts against the outer portion of the C-shaped piece; the ankles of the two legs of a child extend into the position between the L-shaped piece and the rotating piece, then the hand-screwing bolt is screwed, the end of the hand-screwing bolt can move downwards while rotating, the C-shaped piece is pushed to be clamped at the ankles of the child, the ankles of the child can be stably positioned, the positioning block can move towards the ankles on the long bolt by rotating the rotating disc, and therefore the ankles of the child can be stably positioned. Therefore, the ligament of the child can be conveniently stretched by the two rotating pieces, and the effect of facilitating the growth of the ligament is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ligament stretching, in particular to a ligament stretcher which helps children grow taller. Background Art

[0002] As people's living standards improve, their requirements for fitness are getting higher and higher. Some people will stretch the ligaments of their legs to achieve the goal of growing taller, especially for children.

[0003] For example, the patent specification of an existing Chinese patent (publication number: CN206295549U) discloses a ligament stretcher, which eliminates the middle pull rod of the traditional stretching device and uses a tightening belt instead. The hands can be released when exercising the legs, which is more convenient when stored and saves manufacturing costs. The push rod adopts a telescopic method, which can be adjusted to different lengths and does not take up space when stored.

[0004] However, in the implementation of relevant technologies, it was found that the ligament stretcher designed as above has the following problems: although the ligament stretcher can position the legs, the positioning effect is poor, that is, the person's feet are positioned through the foot cover during use, but if the foot cover is made of elastic material, the foot cover will be stretched during use, reducing the positioning stability; if the foot cover is not elastic, it is not convenient for people with larger feet to wear it and use it.

[0005] In view of this, a ligament stretcher that helps children grow taller is provided to overcome the above-mentioned defects. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and provides a ligament stretcher which helps children grow taller.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a ligament stretcher that helps children grow taller, comprising a positioning block, a long bolt is inserted into the inner thread of the positioning block, a turntable is fixedly installed on one end of the long bolt, rotating parts are provided on both sides of the positioning block, an L-shaped part is fixedly installed on the top of the rotating part, a first spring is fixedly installed on the L-shaped part, a C-shaped part is fixedly installed on the other end of the first spring, a hand-tightening bolt is inserted into the top thread of the L-shaped part, and the end of the hand-tightening bolt is abutted against the outside of the C-shaped part.

[0008] As a further description of the above technical solution: the number of the first springs is two, and the two first springs are symmetrically fixedly installed on the L-shaped part. The arrangement of the two first springs can improve the stability of the C-shaped part during movement.

[0009] As a further description of the above technical solution: mounting seats are fixedly installed on both sides of the positioning block, a pin shaft is arranged in the mounting seat, the rotating member is rotatably sleeved on the pin shaft, and a stopper is fixedly installed on one side of the mounting seat, the stopper abuts against the rotating member, so that the two rotating members can be conveniently folded onto the positioning block when the ligament stretcher is not needed, thereby improving portability. In addition, the setting of the stopper can limit the rotating member, making it convenient to use the ligament stretcher.

[0010] As a further description of the above technical scheme: a negative pressure groove is provided on one side of the positioning block, a one-way air intake valve and a one-way air exhaust valve are arranged in the positioning block, a piston plate is slidably arranged in the positioning block, a pull rod is fixedly installed on the top of the piston plate, the other end of the pull rod slides through the positioning block and is fixedly arranged with a pull block, a second spring is movably sleeved on the pull rod, and the two ends of the second spring are respectively connected with the piston plate and the positioning block, the positioning block is placed on a smooth ground and the negative pressure groove is fit to the ground, and then the pull block is pulled to make the piston plate compress the second spring to slide, during this process, the air between the negative pressure groove and the ground will be discharged to the outside through the one-way air intake valve and the one-way air exhaust valve, and the pull block is released. At this time, the second spring pushes the piston plate open and resets it due to its own elastic force, and then repeats the above operation to discharge the air between the negative pressure groove and the ground, so that negative pressure can be generated in the negative pressure groove, and the positioning block is stably positioned on the ground by the principle of atmospheric pressure, thereby avoiding the problem of warping of the positioning block when the ligament is stretched.

[0011] As a further description of the above technical solution: a cavity and an exhaust hole are respectively opened inside and on one side of the positioning block, the cavity, the exhaust hole, the one-way exhaust valve, the one-way air intake valve and the negative pressure groove are connected, the piston plate is slidably connected in the cavity, and the two ends of the second spring are respectively fixedly connected to the piston plate and the inner wall of the cavity.

[0012] As a further description of the above technical solution: a sealing plug is movably inserted into one side of the positioning block, and the end of the sealing plug extends into the negative pressure groove. Pulling out the sealing plug can allow outside air to enter the negative pressure groove, so that the air pressure inside and outside the negative pressure groove is balanced, and the positioning of the positioning block can be easily released.

[0013] As a further description of the above technical solution: the sealing plug is made of rubber, and the outer surface of the sealing plug is provided with anti-slip texture. Since rubber has a certain elasticity, the gap between the negative pressure groove and the sealing plug can be filled, thereby improving the sealing performance. The setting of the anti-slip texture can increase the friction between the person's hand and the sealing plug, thereby helping to solve the problem of slipping when pulling the sealing plug.

[0014] The utility model has the following beneficial effects:

[0015] The ligament stretcher designed by the utility model is helpful for children to grow taller. By inserting the ankles of both legs of the child between the L-shaped part and the rotating part, and then rotating the hand-tightening bolt, the end of the hand-tightening bolt can be rotated and moved downward to push the C-shaped part to be stuck at the ankle of the child, so as to stably position it. By rotating the turntable, the positioning block can be moved toward itself on the long bolt, so that the two rotating parts can conveniently stretch the ligaments of the child, thereby achieving the effect of helping to grow taller.

[0016] The ligament stretcher designed by the utility model helps children grow taller. By pulling the pulling block, the piston plate can compress the second spring and slide in the cavity. During this process, the air between the negative pressure groove and the ground will enter the cavity through the one-way air inlet valve and then be discharged to the outside through the one-way air exhaust valve. The pulling block is released, and the second spring pushes the piston plate open and resets it due to its own elastic force. The above operation is then repeated to discharge the air between the negative pressure groove and the ground, so that negative pressure can be generated in the negative pressure groove. The positioning block can be stably positioned on the ground using the principle of atmospheric pressure, so that the problem of the positioning block warping during the ligament stretching movement is avoided, thereby improving the stability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the L-shaped member of the utility model when viewed from the outside;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the interior of the rear side of the positioning block of the utility model in a half-section view;

[0020] Figure 4 For this utility model Figure 1 Enlarged view of point A in the middle.

[0021] Legend:

[0022] 1. Positioning block; 2. Long bolt; 3. Turntable; 4. Rotating part; 5. L-shaped part; 6. First spring; 7. C-shaped part; 8. Tightening bolt; 9. Mounting seat; 10. Pin shaft; 11. Stopper; 12. Negative pressure groove; 13. One-way intake valve; 14. One-way exhaust valve; 15. Piston plate; 16. Pull rod; 17. Pull block; 18. Second spring; 19. Cavity; 20. Exhaust hole; 21. Sealing plug. DETAILED DESCRIPTION

[0023] Reference Figure 1-4The utility model provides a ligament stretcher that helps children grow taller: it includes a positioning block 1, a long bolt 2 is inserted into the inner thread of the positioning block 1, a turntable 3 is fixedly installed at one end of the long bolt 2, rotating parts 4 are arranged on both sides of the positioning block 1, an L-shaped part 5 is fixedly installed on the top of the rotating part 4, a first spring 6 is fixedly installed on the L-shaped part 5, a C-shaped part 7 is fixedly installed on the other end of the first spring 6, a hand-tightening bolt 8 is inserted into the top thread of the L-shaped part 5, and the end of the hand-tightening bolt 8 is against the outside of the C-shaped part 7.

[0024] During the specific implementation, the child puts the ankles of both legs between the L-shaped part 5 and the rotating part 4, and then rotates the hand-tightening bolt 8, so that the end of the hand-tightening bolt 8 rotates and moves downward and pushes the C-shaped part 7 to be stuck at the child's ankle, so as to stably position it. Finally, the child rotates the turntable 3, which can make the positioning block 1 move toward itself on the long bolt 2, so that the two rotating parts 4 can easily stretch the child's ligaments.

[0025] As a further implementation of the above technical solution: the number of the first springs 6 is two, and the two first springs 6 are symmetrically fixedly installed on the L-shaped member 5. The arrangement of the two first springs 6 can improve the stability of the C-shaped member 7 during movement.

[0026] As a further implementation of the above technical solution: both sides of the positioning block 1 are fixedly installed with mounting seats 9, and a pin shaft 10 is arranged in the mounting seat 9. The rotating member 4 is rotatably sleeved on the pin shaft 10. A stopper 11 is fixedly installed on one side of the mounting seat 9, and the stopper 11 abuts against the rotating member 4. When the ligament stretcher is not needed, the two rotating members 4 can be conveniently folded on the positioning block 1, which improves portability. In addition, the setting of the stopper 11 can limit the rotating member 4, making it convenient to use the ligament stretcher.

[0027] As a further implementation scheme of the above technical scheme: a negative pressure groove 12 is opened on one side of the positioning block 1, a one-way air intake valve 13 and a one-way air exhaust valve 14 are arranged in the positioning block 1, a piston plate 15 is slidably arranged in the positioning block 1, a pull rod 16 is fixedly installed on the top of the piston plate 15, the other end of the pull rod 16 slides through the positioning block 1 and is fixedly provided with a pull block 17, a second spring 18 is movably sleeved on the pull rod 16, and the two ends of the second spring 18 are respectively connected to the piston plate 15 and the positioning block 1, a cavity 19 and an exhaust hole 20 are respectively opened inside and on one side of the positioning block 1, the cavity 19, the exhaust hole 20, the one-way exhaust valve 14, the one-way air intake valve 13 and the negative pressure groove 12 are connected, the piston plate 15 is slidably connected in the cavity 19, and the two ends of the second spring 18 are respectively fixedly connected to the piston plate 15 and the inner wall of the cavity 19.

[0028] During specific implementation, on the basis of the above implementation, the positioning block 1 is placed on a smooth ground and the negative pressure groove 12 is made to fit the ground, and then the pull block 17 is pulled to make the piston plate 15 compress the second spring 18 and slide in the cavity 19. During this process, the air between the negative pressure groove 12 and the ground will enter the cavity 19 through the one-way air inlet valve 13, and then be discharged to the outside through the one-way exhaust valve 14. The pull block 17 is released. At this time, the second spring 18 pushes the piston plate 15 open and resets it due to its own elastic force, and then the above operation is repeated to discharge the air between the negative pressure groove 12 and the ground, so that negative pressure can be generated in the negative pressure groove 12. The positioning block 1 is stably positioned on the ground using the principle of atmospheric pressure to avoid the problem of the positioning block 1 warping when the ligament is stretched.

[0029] As a further implementation of the above technical solution: a sealing plug 21 is movably inserted into one side of the positioning block 1, and the end of the sealing plug 21 extends into the negative pressure groove 12. Pulling out the sealing plug 21 allows outside air to enter the negative pressure groove 12, so that the air pressure inside and outside the negative pressure groove 12 is balanced, and the positioning of the positioning block 1 can be easily released.

[0030] As a further implementation of the above technical solution: the sealing plug 21 is made of rubber, and the outer surface of the sealing plug 21 is provided with anti-skid patterns. Since rubber has a certain elasticity, the gap between the negative pressure groove 12 and the sealing plug 21 can be filled, thereby improving the sealing performance. The provision of the anti-skid patterns can increase the friction between the hand of the person and the sealing plug 21, thereby helping to solve the problem of slipping when pulling the sealing plug 21.

[0031] The one-way air intake valve 13 and the one-way exhaust valve 14 are also called non-return valves or check valves, which are usually composed of a valve body, a valve plate and a valve membrane. The principle is: when the gas generated by the sealed items in the bag makes the bag reach a certain pressure, the gas can push the exhaust valve plate from the inside to the outside and discharge the excess gas to the outside; when the pressure in the bag is reduced to a level that is not enough to push the valve plate open, the valve automatically closes. The valve will only open automatically when the pressure in the bag is higher than the pressure outside the bag, otherwise it will not open. Since the one-way air intake valve 13 and the one-way exhaust valve 14 are both existing technologies, they will not be described in detail in this manual.

[0032] Working principle:

[0033] When using the utility model, the positioning block 1 is placed on a smooth ground and the negative pressure groove 12 is made to fit the ground. Then the pull block 17 is pulled to make the piston plate 15 compress the second spring 18 and slide in the cavity 19. During this process, the air between the negative pressure groove 12 and the ground will enter the cavity 19 through the one-way air inlet valve 13, and then be discharged to the outside through the one-way air exhaust valve 14. The pull block 17 is released. At this time, the second spring 18 pushes the piston plate 15 away and resets due to its own elastic force. Then the above operation is repeated to open the negative pressure groove 12. The air between the child and the ground is discharged, which can generate negative pressure in the negative pressure groove 12. The positioning block 1 is stably positioned on the ground using the principle of atmospheric pressure. The child then inserts the ankles of both legs between the L-shaped part 5 and the rotating part 4, and then rotates the hand-tightening bolt 8 so that the end of the hand-tightening bolt 8 rotates and moves downward and pushes the C-shaped part 7 to get stuck at the child's ankle, thereby stably positioning it. Finally, the child rotates the turntable 3 to make the positioning block 1 move toward itself on the long bolt 2, so that the two rotating parts 4 can stretch the child's ligaments.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ligament stretcher that helps children grow taller, comprising a positioning block (1), wherein a long bolt (2) is inserted into the internal thread of the positioning block (1), a rotating disk (3) is fixedly mounted on one end of the long bolt (2), and rotating parts (4) are arranged on both sides of the positioning block (1), characterized in that: An L-shaped member (5) is fixedly mounted on the top of the rotating member (4), a first spring (6) is fixedly mounted on the L-shaped member (5), a C-shaped member (7) is fixedly mounted on the other end of the first spring (6), a hand-tightening bolt (8) is threadedly inserted into the top of the L-shaped member (5), and the end of the hand-tightening bolt (8) abuts against the outside of the C-shaped member (7).

2. A ligament stretcher for helping children grow taller according to claim 1, characterized in that: The number of the first springs (6) is two, and the two first springs (6) are symmetrically fixedly mounted on the L-shaped member (5).

3. A ligament stretcher for helping children grow taller according to claim 1, characterized in that: Mounting seats (9) are fixedly mounted on both sides of the positioning block (1), a pin shaft (10) is arranged inside the mounting seat (9), the rotating member (4) is rotatably sleeved on the pin shaft (10), a stopper (11) is fixedly mounted on one side of the mounting seat (9), and the stopper (11) abuts against the rotating member (4).

4. The ligament stretcher for helping children grow taller according to claim 1, characterized in that: A negative pressure groove (12) is provided on one side of the positioning block (1), a one-way air intake valve (13) and a one-way air exhaust valve (14) are provided in the positioning block (1), a piston plate (15) is slidably provided in the positioning block (1), a pull rod (16) is fixedly installed on the top of the piston plate (15), the other end of the pull rod (16) slides through the positioning block (1) and is fixedly provided with a pull block (17), a second spring (18) is movably sleeved on the pull rod (16), and the two ends of the second spring (18) are respectively connected to the piston plate (15) and the positioning block (1).

5. A ligament stretcher for helping children grow taller according to claim 4, characterized in that: A cavity (19) and an exhaust hole (20) are respectively provided inside and on one side of the positioning block (1); the cavity (19), the exhaust hole (20), the one-way exhaust valve (14), the one-way intake valve (13) and the negative pressure groove (12) are connected; the piston plate (15) is slidably connected in the cavity (19); and the two ends of the second spring (18) are respectively fixedly connected to the piston plate (15) and the inner wall of the cavity (19).

6. The ligament stretcher for helping children grow taller according to claim 4, characterized in that: A sealing plug (21) is movably inserted into one side of the positioning block (1), and the end of the sealing plug (21) extends into the negative pressure groove (12).

7. A ligament stretcher for helping children grow taller according to claim 6, characterized in that: The sealing plug (21) is made of rubber, and the outer surface of the sealing plug (21) is provided with anti-slip patterns.

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