Sports equipment for leg exercise
By designing the resistance components of pistons, small holes, sealing plates, connecting pipes and solenoid valves in leg exercise equipment, the problem of large weight and uncontrollable reset in the prior art is solved, and adjustable training resistance and safe reset process are achieved.
Patent Information
- Application Number
- CN202420835875.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-04-22
AI Technical Summary
Existing leg exercise equipment requires counterweight to adjust the exercise resistance. The overall weight is large and inconvenient to transfer. The reset process is fast and uncontrollable, and it is easy to cause damage due to the rapid reset of the equipment.
A resistance assembly including a piston, a small hole, a sealing plate, a connecting pipe and a solenoid valve is designed to generate resistance through the flow of hydraulic oil, and the reset speed of the piston is controlled through the solenoid valve, and the resistance and reset speed are adjusted.
This achieves the provision of adjustable exercise resistance without counterweight, avoids damage caused by sudden power reduction, and improves the safety and control of exercise.
Smart Images

Figure CN222752516U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of exercise equipment, in particular to a sports equipment for leg exercise. Background Art
[0002] Sports equipment is a general term for various apparatus, equipment and supplies used in competitive sports competitions and fitness exercises. During the fitness process, it is necessary to select corresponding exercise equipment according to the muscles of different parts of the training. Among them, for the training of leg muscles, a leg exercise sports equipment is needed.
[0003] In the prior art, most leg training equipment requires counterweights to adjust the exercise resistance. The overall weight of this type of equipment is large, which is not conducive to the transfer of the equipment. In addition, during the exercise process, the equipment is reset by the gravity of the counterweight. Therefore, the equipment reset process is fast and uncontrollable. When the strength of the muscles of the exerciser is reduced due to cramps or other reasons, it is easy to cause injury due to the equipment resetting too quickly. Utility Model Content
[0004] The purpose of the utility model is to provide a leg training sports equipment to solve the problems raised in the above background technology.
[0005] The technical solution of the utility model is: a leg exercise sports equipment, comprising:
[0006] A bracket, wherein a support seat is obliquely arranged on one side of the top of the bracket;
[0007] A slide groove, the slide groove is arranged on the top of the support seat, and a connecting component is slidably arranged in the slide groove;
[0008] A connecting rod, wherein the connecting rod and the connecting assembly are fixed;
[0009] Two resistance assemblies, the two resistance assemblies are rotatably arranged on two side walls of the bracket respectively, and the two resistance assemblies are fixed to the connecting rod;
[0010] The resistance component comprises:
[0011] A sleeve, wherein a piston is slidably arranged on the inner side wall of the sleeve, a plurality of small holes distributed at equal distances are opened on the side wall of the piston, and the sleeve is filled with hydraulic oil;
[0012] A sealing assembly, the sealing assembly is rotatably disposed on the side wall of the piston, and the sealing assembly is used to seal the small hole;
[0013] A sleeve rod, the sleeve rod is fixed on the side wall of the piston, and a notch is formed on the top of the sleeve rod;
[0014] An adjusting component is fixed to the sealing component, and the adjusting component is used to drive the sealing component to rotate.
[0015] Preferably, the resistance component further comprises:
[0016] A second connecting block, wherein the second connecting block is fixed on the side wall of the sleeve, and the second connecting block is rotatably connected to the side wall of the bracket;
[0017] The first connecting block is rotatably arranged on the side wall of the sleeve rod, and the first connecting block and the connecting rod are fixed.
[0018] Preferably, the resistance component further comprises:
[0019] Two connecting pipes, the two connecting pipes are respectively arranged through the two ends of the inner wall of the sleeve;
[0020] A solenoid valve is communicated with two connecting pipes.
[0021] Preferably, the sealing assembly comprises:
[0022] A sealing plate, the sealing plate being rotatably disposed on the side wall of the piston;
[0023] A transmission rod is fixed on the side wall of the piston and passes through the sleeve rod.
[0024] Preferably, the adjustment component comprises:
[0025] The shifting rod is slidably arranged on the inner side wall of the notch, and the shifting rod and the transmission rod are fixed.
[0026] Preferably, the connection assembly comprises:
[0027] A slider, the slider being slidably disposed on the inner wall of the slide groove;
[0028] A spring, one end of which is fixed to the slider, and the other end of which is fixed to the inner wall of the slide groove;
[0029] A telescopic rod is fixed on the top of the sliding block, a fixed block is fixed on the telescopic end of the telescopic rod, and the fixed block is fixed to the connecting rod.
[0030] Preferably, a seat is fixed on the top of the bracket, and sponge covers are fixed at both ends of the side walls of the connecting rod.
[0031] The utility model provides a leg exercise sports equipment through improvement, which has the following improvements and advantages compared with the prior art:
[0032] The utility model uses the piston, small hole, sealing plate, connecting pipe and solenoid valve to realize the switch of the solenoid valve during the resetting process of the piston. Through the action of the two connecting pipes and the solenoid valve, the space on both sides of the piston in the sleeve is connected, so that the piston can be quickly reset. On the contrary, due to the resistance generated by the flow of hydraulic oil, the piston resetting process is relatively slow. Therefore, when the legs cannot provide strength in time during exercise, the resetting speed of the connecting rod can also be controlled by the solenoid valve, thereby avoiding injuries to the exerciser due to a sudden decrease in leg strength. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:
[0034] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0035] Figure 2 It is a schematic diagram of the structure of the connecting pipe and the solenoid valve of the utility model;
[0036] Figure 3 It is a schematic diagram of the cross-sectional structure of the sleeve of the utility model;
[0037] Figure 4 It is a schematic diagram of the cross-sectional structure of the sleeve rod of the utility model.
[0038] Description of reference numerals:
[0039] 1. Bracket; 2. Slide; 3. Spring; 4. Slider; 5. Telescopic rod; 6. Fixed block; 7. Connecting rod; 8. Sponge cover; 9. Seat; 10. First connecting block; 11. Sleeve; 12. Connecting pipe; 13. Solenoid valve; 14. Second connecting block; 15. Sleeve rod; 16. Piston; 17. Sealing plate; 18. Transmission rod; 19. Push rod; 20. Small hole; 21. Support seat. DETAILED DESCRIPTION
[0040] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0041] The utility model provides a leg exercise sports equipment through improvement. The technical solution of the utility model is:
[0042] like Figure 1-Figure 4 As shown, a leg exercise sports equipment comprises:
[0043] The bracket 1 has a support seat 21 disposed obliquely on one side of the top of the bracket 1;
[0044] A slide groove 2 is provided on the top of the support seat 21, and a connecting component is slidably arranged in the slide groove 2;
[0045] The connecting rod 7 is fixed to the connecting assembly;
[0046] Two resistance assemblies, the two resistance assemblies are rotatably arranged on two side walls of the bracket 1, and the two resistance assemblies are fixed to the connecting rod 7;
[0047] The resistance components include:
[0048] The sleeve 11 has a piston 16 slidably disposed on the inner wall of the sleeve 11, and a plurality of small holes 20 equidistantly distributed are opened on the side wall of the piston 16. The sleeve 11 is filled with hydraulic oil;
[0049] A sealing assembly, the sealing assembly is rotatably disposed on the side wall of the piston 16, and the sealing assembly is used to seal the small hole 20;
[0050] A sleeve rod 15, the sleeve rod 15 is fixed on the side wall of the piston 16, and a notch is formed on the top of the sleeve rod 15;
[0051] The adjusting component is fixed to the sealing component, and the adjusting component is used to drive the sealing component to rotate.
[0052] When the hydraulic oil flows through the small hole 20 on the piston 16, it will produce resistance to achieve the purpose of exercise;
[0053] By sealing the small hole 20 to different degrees through the sealing component, the resistance generated when the hydraulic oil flows can be adjusted, thereby achieving the resistance adjustment function;
[0054] Furthermore, the equipment can provide a better training effect without the need for weights.
[0055] Furthermore, the resistance component also includes:
[0056] A second connecting block 14, the second connecting block 14 is fixed on the side wall of the sleeve 11, and the second connecting block 14 is rotatably connected to the side wall of the bracket 1;
[0057] The first connecting block 10 is rotatably arranged on the side wall of the sleeve rod 15, and the first connecting block 10 and the connecting rod 7 are fixed.
[0058] Furthermore, the resistance component also includes:
[0059] Two connecting pipes 12, which are respectively arranged at both ends of the inner wall of the sleeve 11;
[0060] The solenoid valve 13 is connected to the two connecting pipes 12 .
[0061] During the resetting process of the piston 16 , the switch of the solenoid valve 13 is turned on, and the spaces on both sides of the piston 16 in the sleeve 11 are connected through the two connecting pipes 12 and the solenoid valve 13 , so that the piston 16 can be quickly reset.
[0062] Further, the sealing assembly comprises:
[0063] A sealing plate 17, the sealing plate 17 is rotatably disposed on the side wall of the piston 16;
[0064] The transmission rod 18 is fixed on the side wall of the piston 16 and passes through the sleeve rod 15 .
[0065] Further, the adjustment component includes:
[0066] The lever 19 is slidably arranged on the inner wall of the notch, and the lever 19 and the transmission rod 18 are fixed.
[0067] Before exercising, the lever 19 is adjusted so that it slides along the arc track along the inner wall of the notch, driving the transmission rod 18 to rotate. During the rotation of the transmission rod 18, the sealing plate 17 is driven to rotate, thereby changing the sealing degree of the sealing plate 17 to the small hole 20.
[0068] Furthermore, the connection component includes:
[0069] A slider 4, the slider 4 is slidably disposed on the inner wall of the slide groove 2;
[0070] Spring 3, one end of spring 3 is fixed to slider 4, and the other end of spring 3 is fixed to the inner wall of slide groove 2;
[0071] The telescopic rod 5 is fixed on the top of the sliding block 4. The telescopic end of the telescopic rod 5 is fixed with a fixing block 6, and the fixing block 6 and the connecting rod 7 are fixed.
[0072] Furthermore, a seat 9 is fixed on the top of the bracket 1 , and sponge covers 8 are fixed at both ends of the side walls of the connecting rod 7 .
[0073] Specifically, the working principle:
[0074] When in use, the user can exercise the legs by stepping on the connecting rod 7 or lifting the connecting rod 7 upwards with the calf, thereby realizing different forms of leg exercise methods, thereby improving the practicality of the equipment;
[0075] When the connecting rod 7 is stepped on downward, the slider 4 slides along the slide groove 2, compressing the spring 3. When the leg stops exerting force, the spring 3 pushes the slider 4 to reset, thereby driving the connecting rod 7 to reset for the next training.
[0076] In the process of lifting the connecting rod 7 upward, the connecting rod 7 is moved by the extension and retraction of the telescopic rod 5. When the legs stop exerting force, the connecting rod 7 is reset under the action of gravity.
[0077] In the above two processes, the resistance is provided by the resistance component. The specific working principle of the resistance component is as follows:
[0078] During the movement of the connecting rod 7, the piston 16 is driven to move along the sleeve 11 through the sleeve rod 15. At this time, the hydraulic oil in the sleeve 11 flows through the small hole 20 on the piston 16. Since the diameter of the small hole 20 is small, the hydraulic oil generates resistance to the piston 16 during the flow, thereby achieving the purpose of exercise;
[0079] Before exercising, the lever 19 is adjusted so that the lever 19 slides along the arc track along the inner wall of the notch, driving the transmission rod 18 to rotate. During the rotation of the transmission rod 18, the sealing plate 17 is driven to rotate, changing the sealing degree of the sealing plate 17 to the small hole 20. When the sealing degree of the small hole 20 is greater, the resistance generated during the flow of the hydraulic oil is greater, and vice versa, the resistance is smaller, thereby realizing the resistance adjustment function, and there is no need to adjust the resistance by adding weights;
[0080] During the resetting process of the piston 16, the switch of the solenoid valve 13 is turned on, and the space on both sides of the piston 16 in the sleeve 11 is connected through the action of the two connecting pipes 12 and the solenoid valve 13, so that the piston 16 can be quickly reset. Therefore, when the legs cannot provide strength in time during exercise, the resetting speed of the connecting rod 7 can also be controlled by the solenoid valve 13, avoiding injuries to the exerciser due to a sudden decrease in leg strength.
Claims
1. A leg training sports equipment, characterized in that: include: A bracket (1), wherein a support seat (21) is obliquely arranged on one side of the top of the bracket (1); A slide groove (2), wherein the slide groove (2) is provided on the top of the support seat (21), and a connecting component is slidably arranged in the slide groove (2); A connecting rod (7), wherein the connecting rod (7) and the connecting assembly are fixed; Two resistance assemblies, the two resistance assemblies are rotatably arranged on two side walls of the bracket (1) respectively, and the two resistance assemblies are fixed to the connecting rod (7); The resistance component comprises: A sleeve (11), wherein a piston (16) is slidably arranged on the inner wall of the sleeve (11), a plurality of small holes (20) distributed at equal distances are opened on the side wall of the piston (16), and the sleeve (11) is filled with hydraulic oil; A sealing assembly, the sealing assembly being rotatably disposed on a side wall of the piston (16), the sealing assembly being used to seal the small hole (20); A sleeve rod (15), wherein the sleeve rod (15) is fixed on the side wall of the piston (16), and a notch is formed on the top of the sleeve rod (15); An adjusting component is fixed to the sealing component, and the adjusting component is used to drive the sealing component to rotate.
2. A leg exercise sports equipment according to claim 1, characterized in that: The resistance assembly also includes: A second connecting block (14), the second connecting block (14) is fixed on the side wall of the sleeve (11), and the second connecting block (14) is rotatably connected to the side wall of the bracket (1); A first connecting block (10), wherein the first connecting block (10) is rotatably arranged on the side wall of the sleeve rod (15), and the first connecting block (10) and the connecting rod (7) are fixed.
3. The leg training sports equipment according to claim 1, characterized in that: The resistance assembly also includes: Two connecting pipes (12), the two connecting pipes (12) respectively penetrating and arranged at both ends of the inner wall of the sleeve (11); A solenoid valve (13), wherein the solenoid valve (13) is connected to the two connecting pipes (12).
4. The leg training sports equipment according to claim 1, characterized in that: The sealing assembly comprises: A sealing plate (17), wherein the sealing plate (17) is rotatably disposed on a side wall of the piston (16); A transmission rod (18) is fixed on the side wall of the piston (16), and the transmission rod (18) passes through the sleeve rod (15).
5. The leg training sports equipment according to claim 4, characterized in that: The adjustment component comprises: A shifting rod (19) is slidably arranged on the inner side wall of the notch, and the shifting rod (19) and the transmission rod (18) are fixed.
6. The leg training sports equipment according to claim 1, characterized in that: The connection component comprises: A slider (4), the slider (4) being slidably disposed on the inner wall of the slide groove (2); A spring (3), one end of the spring (3) being fixed to the slider (4), and the other end of the spring (3) being fixed to the inner wall of the slide groove (2); A telescopic rod (5) is fixed on the top of the slider (4); a fixed block (6) is fixed to the telescopic end of the telescopic rod (5); and the fixed block (6) and the connecting rod (7) are fixed.
7. The leg training sports equipment according to claim 1, characterized in that: A seat (9) is fixed on the top of the bracket (1), and sponge sleeves (8) are fixed at both ends of the side walls of the connecting rod (7).