A two-position leg press

Abstract

The present invention provides a two-position leg press machine, which includes a leg press machine body. The leg press machine body includes a bracket, a seat, a simulated weight gain component, and a foot pedal mechanism. A rotating component is installed at the top of the bracket. A second fixed sleeve is sleeved on the surface of the rotating component. A rotating arm is arranged outside the second fixed sleeve. A seat is installed at the end of the rotating arm. An adjusting mechanism is arranged at the bottom of the seat. The bottom end of the adjusting mechanism is connected to the simulated weight gain component. This two-position leg press machine is provided with a simulated weight gain component at the bottom. By pulling the seat with a spring, the thrust required during the leg press training can be increased, thereby improving the training effect. The simulated weight gain component can prevent loss. A transmission component is arranged at the top. In the foot pedal mechanism at the bottom, the strap can be controlled to stretch or relax through the transmission component at the top. Therefore, the probability of slipping can be reduced, and the training process is safer and more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of sports equipment, and specifically relates to a double-position leg press machine. Background Art

[0002] The leg press machine, also known as a leg press trainer, is a type of fitness equipment. There are two categories: outdoor and indoor, and it is commonly seen in community fitness squares, sports squares, schools, parks, and various outdoor sports and fitness venues. Among them, the double-position leg press machine is the most common. When using it, one directly sits on the seat and steps on the pedals with the soles of the feet, and kicks the legs backward to achieve the effect of fitness. However, in the prior art, the force required when kicking backward is only determined by the seat and the user's own body weight, and the counterweight cannot be adjusted flexibly. And only by placing additional weights on the seat, this method is prone to loss when applied outdoors, with poor practicability. Moreover, the anti-slip patterns on the surface of the pedal part will be worn after long-term use, resulting in a slipping phenomenon. Especially for training personnel with heavier weights, slipping will cause the seat to sink rapidly, thus posing a certain danger. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a double-position leg press machine to solve the problems raised in the above background art. The present invention can simulate weight gain, improve the exercise effect, has good shock absorption effect, high stability, and reduces the probability of slipping.

[0004] To achieve the above purpose, the present invention is realized through the following technical solutions: A double-position leg press machine includes a leg press machine body. The leg press machine body includes a bracket, a seat, a simulated weight gain component, and a foot pedal mechanism. A rotating component is installed at the top of the bracket. A second fixed sleeve is sleeved on the surface of the rotating component. A rotating arm is arranged outside the second fixed sleeve. A seat is installed at the end of the rotating arm. An adjusting mechanism is arranged at the bottom of the seat. The bottom end of the adjusting mechanism is connected to the simulated weight gain component. A fixed crossbar is installed at the bottom of the bracket. There are two fixed crossbars, and two groups of foot pedal mechanisms are installed on the surface of each fixed crossbar. A baffle is installed at the middle bottom of the fixed crossbar. A groove is opened on the surface of the baffle, and a buffer pad is pasted inside the groove. The seat is separated from the baffle by the buffer pad.

[0005] Furthermore, the simulated weight gain component includes a spring and a fixing plate. A second pull ring is installed at the top of the fixing plate. The top of the second pull ring is connected to the bottom end of the spring. The top of the spring is connected to the adjusting mechanism.

[0006] Furthermore, there are two groups of simulated weight gain components, and each simulated weight gain component is symmetrically installed on both sides of the bracket. The fixing plate is fixedly installed on the ground by using screws.

[0007] Furthermore, the adjusting mechanism includes a handwheel and an adjusting rod. A threaded column is provided in the middle of the adjusting rod. A threaded sleeve is sleeved on the surface of the threaded column. A support sleeve is sleeved on the surface of the rear end of the adjusting rod.

[0008] Furthermore, the tops of the threaded sleeve and the support sleeve are both welded to the bottom of the seat as a whole. The handwheel is installed at the end of the adjusting rod. A groove structure is provided in the area of the adjusting rod between the support sleeve and the threaded sleeve, and a bearing is embedded in the groove.

[0009] Furthermore, a first pull ring is welded and installed on the outer ring part of the bearing. The bearing is connected to the top end of the spring at the bottom through the first pull ring. The end of the adjusting rod is aligned and in contact with the buffer pad part.

[0010] Furthermore, the transmission assembly includes a rotating cross bar and a second fixed sleeve. The second fixed sleeve is fixedly installed at the middle position of the second fixed sleeve by using bolts. Limit plates are installed at both ends of the rotating cross bar. A pull rope is wound around the surface of the rotating cross bar inside the limit plate. The rotating assembly is connected to the bottom pedal mechanism through the pull rope.

[0011] Furthermore, two sets of rotating assemblies are provided, and the rotating cross bars are kept parallel to each other. A gap is provided between the two second fixed sleeves. The two ends of the rotating cross bar penetrate into the inner side of the bracket, and the inside of the bracket is a hollow structure. The pull rope extends downward along the inner space of the bracket.

[0012] Furthermore, the pedal mechanism includes a pedal strap. The bottom end of the pedal is welded and installed with a first fixed sleeve. The first fixed sleeve is sleeved on the surface of the fixed cross bar. Through holes are provided at both ends of the fixed cross bar. The pull rope passes outwards through the through holes. A guide wheel is installed at the connection between the bracket and the fixed cross bar.

[0013] Furthermore, the pull rope bends towards the inside of the fixed cross bar at the guide wheel on the inner side of the bracket. A first side plate is provided on one side of the pedal. A second side plate is provided on the other side of the pedal. One end of the strap is fixedly connected to the inner wall of the first side plate. A strip-shaped hole is provided in the middle of the second side plate, and the other end of the strap passes through the hole. The end of the pull rope is fixedly connected to the side of the strap.

[0014] Advantages of the present invention: A two-position leg press of the present invention includes a leg press body, and the leg press body includes a bracket, a seat, an adjustment mechanism, a simulated weight gain component, a baffle, a buffer pad, a foot pedal mechanism, a rotating component, an adjustment rod, a threaded column, a handwheel, a threaded sleeve, a support sleeve, a bearing, a first pull ring, a spring, a second pull ring, a fixing plate, a fixing cross bar, a through hole, a first fixing sleeve, a pedal, a first side plate, a second side plate, a strap, a pull rope, a rotating cross bar, a second fixing sleeve, a rotating arm, a guide wheel, and a limiting plate.

[0015] 1. The two-position leg press is provided with a simulated weight gain component at the bottom. By pulling the seat with a spring, the thrust required during the leg press training can be increased, thereby improving the training effect. The simulated weight gain component can avoid being lost and has a longer service life.

[0016] 2. The two-position leg press is provided with an adjustment mechanism at the top of the simulated weight gain component. By rotating the handwheel, the stretching length of the spring in the bottom simulated weight gain component in the initial state can be controlled. Therefore, it can be adjusted accordingly according to the specific physical fitness of the training personnel, with higher flexibility.

[0017] 3. The two-position leg press is provided with a transmission component at the top. In the foot pedal mechanism at the bottom, the strap can be controlled to stretch or relax through the transmission component at the top. Therefore, the probability of slipping can be reduced, making the entire leg press training process safer and more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the outer shape of a two-position leg press of the present invention;

[0019] Figure 2 is a schematic structural diagram of the simulated weight gain component part of a two-position leg press of the present invention;

[0020] Figure 3 is a schematic structural diagram of the foot pedal mechanism part of a two-position leg press of the present invention;

[0021] Figure 4 is a schematic structural diagram of the rotating component part of a two-position leg press of the present invention;

[0022] Figure 5 is a transmission diagram of the rotating component and the foot pedal mechanism parts of a two-position leg press of the present invention;

[0023] In the figure: 1. Bracket; 2. Seat; 3. Adjusting mechanism; 4. Simulated weight gain component; 5. Baffle; 6. Buffer pad; 7. Pedal mechanism; 8. Rotating component; 9. Adjusting rod; 10. Threaded column; 11. Handwheel; 12. Threaded sleeve; 13. Support sleeve; 14. Bearing; 15. First pull ring; 16. Spring; 17. Second pull ring; 18. Fixed plate; 19. Fixed crossbar; 20. Through hole; 21. First fixed sleeve; 22. Pedal; 23. First side plate; 24. Second side plate; 25. Strap; 26. Pull rope; 27. Rotating crossbar; 28. Second fixed sleeve; 29. Rotating arm; 30. Guide wheel; 31. Limiting plate. Detailed implementation mode

[0024] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with the detailed implementation mode.

[0025] Please refer to Figures 1 to 5 , the present invention provides a technical solution: a two-position leg press, including a leg press body, the leg press body includes a bracket 1, a seat 2, a simulated weight gain component 4 and a pedal mechanism 7, a rotating component 8 is installed at the top of the bracket 1, a second fixed sleeve 28 is sleeved on the surface of the rotating component 8, a rotating arm 29 is arranged outside the second fixed sleeve 28, a seat 2 is installed at the end of the rotating arm 29, an adjusting mechanism 3 is arranged at the bottom end of the seat 2, the bottom end of the adjusting mechanism 3 is connected to the simulated weight gain component 4, a fixed crossbar 19 is installed at the bottom end of the bracket 1, there are two fixed crossbars 19, and two groups of pedal mechanisms 7 are installed on the surface of each fixed crossbar 19, a baffle 5 is installed at the middle bottom of the fixed crossbar 19, a groove is opened on the surface of the baffle 5, and a buffer pad 6 is pasted inside the groove, the seat 2 is partially separated from the baffle 5 through the buffer pad 6. This two-position leg press is mainly applied outdoors. By fixedly installing the bottom end of the bracket 1 on the ground, placing the seats 2 on both sides of the bracket 1, and connecting the seat 2 and the leg press body through the rotating component 8 at the top, one can sit on the seat 2, step on the pedal mechanism 7 with the sole of the foot, and kick backward for fitness exercise. A simulated weight gain component 4 is arranged at the bottom end of each seat 2. By using the adjusting mechanism 3 to change the state of the simulated weight gain component 4, the load during kicking can be increased, thereby improving the exercise effect and being able to be adjusted according to the needs of specific exercisers.

[0026] In this embodiment, the simulated weight gain assembly 4 includes a spring 16 and a fixing plate 18. A second pull ring 17 is installed at the top of the fixing plate 18. The top of the second pull ring 17 is connected to the bottom end of the spring 16. The top of the spring 16 is connected to the adjusting mechanism 3. There are two groups of simulated weight gain assemblies 4, and each simulated weight gain assembly 4 is symmetrically installed on both sides of the bracket 1. The fixing plate 18 is fixedly installed on the ground by using screws. There is a simulated weight gain assembly 4 at the bottom end. By pulling the seat 2 with the spring 16, the thrust required during the sitting and pedaling training can be increased, thereby improving the training effect. Both ends of the simulated weight gain assembly 4 are kept fixed and always at the bottom position of the seat 2, which can avoid loss and has a longer service life. When pedaling backward, the seat 2 moves backward, and then the adjusting mechanism 3 at the bottom pulls the spring 16 to stretch obliquely upward. The contraction force generated by the stretching acts on the seat 2 as a reverse resistance for use. Therefore, when the trainer steps on and pedals up, a greater thrust needs to be applied to resist the increased resistance of the spring 16, so as to achieve the purpose of improving the training effect.

[0027] In this embodiment, the adjusting mechanism 3 includes a handwheel 11 and an adjusting rod 9. A threaded column 10 is provided in the middle of the adjusting rod 9. A threaded sleeve 12 is sleeved on the surface of the threaded column 10. A support sleeve 13 is sleeved on the surface of the rear end of the adjusting rod 9. The tops of the threaded sleeve 12 and the support sleeve 13 are welded to the bottom of the seat 2 as a whole. The handwheel 11 is installed at the end of the adjusting rod 9. A groove structure is provided in the area of the adjusting rod 9 between the support sleeve 13 and the threaded sleeve 12, and a bearing 14 is embedded in the groove. The outer ring part of the bearing 14 is welded and installed with a first pull ring 15. The bearing 14 is connected to the top end of the bottom spring 16 through the first pull ring 15. The end of the adjusting rod 9 is in alignment and contact with the buffer pad 6. An adjusting mechanism 3 is provided at the top of the simulated weight gain assembly 4. By rotating the handwheel 11, the stretching length of the spring 16 in the bottom simulated weight gain assembly 4 in the initial state can be controlled, and thus the resistance generated by the spring 16 during training can be adjusted. Therefore, it can be adjusted accordingly according to the specific physical fitness of the trainer, with higher flexibility. By rotating the handwheel 11 and pulling the entire adjusting rod 9 backward, the backward movement of the adjusting rod 9 will drive the bottom spring 16 to be pulled backward. Therefore, by adjusting the angle of the spring 16 in the initial state, when moving to the same height during subsequent pedaling up, the stretching length of the spring 16 can be further extended, increasing the pulling force applied by the spring 16, so as to achieve the function of adjusting the load.

[0028] In this embodiment, the transmission assembly includes a rotating crossbar 27 and a second fixed sleeve 28. The second fixed sleeve 28 is fixedly installed at the middle position of the second fixed sleeve 28 by using bolts. Limit plates 31 are installed at both ends of the rotating crossbar 27. A pulling rope 26 is wound around the surface of the rotating crossbar 27 inside the limit plate 31. The rotating assembly 8 is connected to the bottom pedal mechanism 7 through the pulling rope 26. Two sets of rotating assemblies 8 are provided, and the rotating crossbars 27 are kept parallel to each other. A gap is provided between the two second fixed sleeves 28. The two ends of the rotating crossbar 27 penetrate into the inside of the bracket 1, and the inside of the bracket 1 is a hollow structure. The pulling rope 26 extends downward along the internal space of the bracket 1. When performing the kicking-up training, the rotating crossbar 27 is driven to rotate by the second fixed sleeve 28, so that the pulling ropes 26 at both ends can be wound around the rotating crossbar 27, and the pulling rope 26 is wound upward. The bottom part of the pulling rope 26 can trigger the protection structure on the pedal mechanism 7 to play an anti-slip role. During the return process, the pulling rope 26 moves in the reverse direction and can be pulled out from the rotating crossbar 27 again.

[0029] In this embodiment, the pedal mechanism 7 includes a pedal 22 and a strap 25. A first fixed sleeve 21 is welded and installed at the bottom end of the pedal 22. The first fixed sleeve 21 is sleeved on the surface of the fixed crossbar 19. Through holes 20 are opened at both ends of the fixed crossbar 19. The pulling rope 26 passes outwards through the through holes 20. A guide wheel 30 is installed at the connection between the bracket 1 and the fixed crossbar 19. The pulling rope 26 bends towards the inside of the fixed crossbar 19 through the guide wheel 30 inside the bracket 1. A first side plate 23 is provided on one side of the pedal 22, and a second side plate 24 is provided on the other side of the pedal 22. One end of the strap 25 is fixedly connected to the inner wall of the first side plate 23. A strip-shaped hole is opened in the middle of the second side plate 24, and the other end of the strap 25 passes through the hole. The end of the pulling rope 26 is fixedly connected to the side of the strap 25. There is a transmission assembly at the top, and in the bottom pedal mechanism 7, the strap 25 can be controlled to be stretched or relaxed through the top transmission assembly. Through this structure, the strap 25 can be tightened and straightened during the kicking-up process, and the sole part of the foot being stepped on can be pressed downward to achieve a fixing effect. Therefore, the probability of slipping can be reduced, and the entire sitting and kicking training process can be made safer and more stable. When the pulling rope 26 is wound upward, the end of the pulling rope 26 pulls the strap 25 to stretch outwards from the hole in the middle of the second side plate 24. Therefore, the sole part of the foot located at the bottom of the strap 25 can be subjected to the downward pressure exerted by the strap 25, increasing the tightening effect. In this state, the sole of the foot is always in a force-applying state, so the probability of slipping can be reduced. When performing the return movement, the tightening effect of the strap 25 gradually decreases. Therefore, after the seat 2 is reset, the sole of the foot can be directly pulled out and separated without manual binding and unbinding operations.

[0030] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For a person skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in whatever aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0031] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A two-position leg press, comprising a leg press body, characterized in that: The body of the leg press machine includes a bracket (1), a seat (2), a simulated weight gain component (4) and a foot pedal mechanism (7). A rotating component (8) is installed at the top of the bracket (1). A second fixed sleeve (28) is sleeved on the surface of the rotating component (8). A rotating arm (29) is arranged outside the second fixed sleeve (28). A seat (2) is installed at the end of the rotating arm (29). An adjusting mechanism (3) is arranged at the bottom end of the seat (2). The bottom end of the adjusting mechanism (3) is connected to the simulated weight gain component (4). Two fixed crossbars (19) are installed at the bottom end of the bracket (1). Two groups of foot pedal mechanisms (7) are installed on the surface of each fixed crossbar (19). A baffle (5) is installed at the middle bottom of the fixed crossbar (19). A groove is formed on the surface of the baffle (5), and a buffer pad (6) is attached inside the groove. The seat (2) is partially separated from the baffle (5) through the buffer pad (6). The simulated weight gain component (4) includes a spring (16) and a fixed plate (18). A second pull ring (17) is installed at the top of the fixed plate (18). The top of the second pull ring (17) is connected to the bottom end of the spring (16). The top of the spring (16) is connected to the adjusting mechanism (3). Two groups of simulated weight gain components (4) are provided, and each simulated weight gain component (4) is symmetrically installed on both sides of the bracket (1). The fixed plate (18) is fixedly installed on the ground by using screws. The adjusting mechanism (3) includes a handwheel (11) and an adjusting rod (9). A threaded column (10) is arranged in the middle of the adjusting rod (9). A threaded sleeve (12) is sleeved on the surface of the threaded column (10). A support sleeve (13) is sleeved on the surface of the rear end of the adjusting rod (9). The rotating component (8) includes a rotating crossbar (27) and a second fixed sleeve (28). The second fixed sleeve (28) is fixedly installed at the middle position of the second fixed sleeve (28) by using bolts. Limit plates (31) are installed at both ends of the rotating crossbar (27). A pull rope (26) is wound around the surface of the rotating crossbar (27) inside the limit plate (31). The rotating component (8) is connected to the foot pedal mechanism (7) at the bottom through the pull rope (26).

2. The two-position leg press according to claim 1, characterized in that: The tops of the threaded sleeve (12) and the support sleeve (13) are integrally welded to the bottom of the seat (2). The handwheel (11) is installed at the end of the adjusting rod (9). A groove structure is arranged in the area of the adjusting rod (9) between the support sleeve (13) and the threaded sleeve (12), and a bearing (14) is embedded inside the groove.

3. The two-position leg press according to claim 2, characterized in that: The outer ring part of the bearing (14) is welded and installed with a first pull ring (15). The bearing (14) is connected to the top end of the bottom spring (16) through the first pull ring (15). The end of the adjusting rod (9) is partially aligned and in contact with the buffer pad (6).

4. The two-position leg press according to claim 1, characterized in that: The rotating assembly (8) is provided with two groups, and the rotating cross bars (27) are kept parallel to each other. A gap is provided between the two second fixed sleeves (28). The two ends of the rotating cross bar (27) penetrate into the inner side of the bracket (1), and the interior of the bracket (1) is a hollow structure. The pulling rope (26) extends downward along the inner space of the bracket (1).

5. The two-position leg press according to claim 1, characterized in that: The pedal mechanism (7) includes a pedal (22) and a strap (25). A first fixed sleeve (21) is welded and installed at the bottom end of the pedal (22). The first fixed sleeve (21) is sleeved on the surface of the fixed cross bar (19). Through holes (20) are formed at both ends of the fixed cross bar (19). The pulling rope (26) passes outwards through the through holes (20). A guide wheel (30) is installed at the connection between the bracket (1) and the fixed cross bar (19).

6. The two-position leg press according to claim 5, characterized in that: The pulling rope (26) bends towards the inside of the fixed cross bar (19) at the guide wheel (30) on the inner side of the bracket (1). A first side plate (23) is arranged on one side of the pedal (22), and a second side plate (24) is arranged on the other side of the pedal (22). One end of the strap (25) is fixedly connected to the inner wall of the first side plate (23). A strip-shaped hole is formed in the middle of the second side plate (24), and the other end of the strap (25) passes through the hole. The end of the pulling rope (26) is fixedly connected to the side of the strap (25).

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