Air resistance type prostrate leg bending trainer

Abstract

The utility model relates to the technical field of exercise training, in particular to an air resistance type prostrate leg bending trainer. The device comprises a supporting frame and supporting legs arranged at the four corners of the bottom of the supporting frame, a sponge supporting pad is arranged on the supporting frame, the supporting frame comprises camber beams which are symmetrically arranged front and back, the two camber beams are connected through connecting beams arranged at the left end and the right end of the camber beams, and a driving assembly is arranged on the outer side of the connecting beam at the left end. An air resistance mechanism matched with the driving assembly is arranged below the supporting frame. The device does not occupy extra field area, the utilization rate of the field can be improved, the universality is high, an athlete can quickly and directly adjust the resistance in the training process according to the training habit of the athlete, the training efficiency is effectively improved, accurate control over the resistance is achieved, an air resistance type structure is adopted, the swing force is stable and controllable, and the training effect is good. The leg load of an athlete can be effectively controlled, the risk of leg strain is avoided, the use safety is improved, and the problems existing in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sports training, in particular to an air resistance type prone leg curling training device. Background Art

[0002] The leg curling machine can help athletes enhance the strength and explosiveness of their lower limbs, significantly improve the flexibility and stability of their lower limbs, thereby reducing the risk of injury during exercise, as well as shape the leg muscle lines and improve the beauty of the body.

[0003] Currently, existing leg curl training devices, including seated leg curl training devices and prone leg curl training devices, all use a counterweight-type load method. However, such training devices still have shortcomings when used by athletes:

[0004] First, the weighted leg curl trainer is heavy and bulky, which requires a certain size of the place where it is used. It is not suitable for use in a small space. However, there are many types of trainers nowadays. If you want to place more trainers in the place where you use them, how to reduce the area occupied by the trainers becomes particularly important.

[0005] Second, the resistance of the weighted leg curl trainer is completely dependent on the amount of weight. Athletes often need to repeatedly adjust the weight during training to meet their own training needs. However, this adjustment method is not easy to control accurately. If the resistance is too high, training will be impossible, and if the resistance is too low, the training purpose will not be achieved.

[0006] Third, although the resistance of the weighted leg curl trainer can be controlled, the swing force generated by the weight is uncontrollable. The swing force will increase under the acceleration of gravity, and the swing force generated during the swing is linearly unstable and uncontrolled, which is bound to increase the load on the athlete's legs. In severe cases, it will cause leg strain, increasing the risk of injury to the athlete. Utility Model Content

[0007] In order to make up for the deficiencies of the existing technology, the utility model provides an air-resistance prone leg curl trainer, which has a compact structure, light weight, and small size. It does not occupy additional venue area, can improve the utilization rate of the venue, and has strong versatility. Athletes can quickly and directly adjust the size of the resistance during training according to their own training habits, effectively improve training efficiency, and achieve precise control of resistance. The air-resistance structure is adopted to make the swing force stable and controllable, which can effectively control the athlete's leg load, avoid the risk of leg strain, improve the safety of use, and solve the problems existing in the existing technology.

[0008] The technical solution adopted by the present invention to solve the above technical problems is:

[0009] An air-resistance type prone leg curl trainer comprises a support frame and support legs arranged at the four corners of the bottom of the support frame, a sponge support pad is provided on the support frame, the support frame comprises curved beams symmetrically arranged front and back, the two curved beams are connected by connecting beams arranged at the left and right ends thereof, a driving assembly is provided on the outside of the connecting beam at the left end, an air resistance mechanism cooperating with the driving assembly is provided below the support frame, and an air supply mechanism cooperating with the air resistance mechanism is provided below the air resistance mechanism; handles are symmetrically provided on the outer side walls of the two supporting legs at the right end, a screen display bracket is provided on the supporting leg at the right end, and a screen display is provided on the screen display bracket.

[0010] Optionally, the drive assembly includes a T-shaped keel with the end of the vertical section fixedly connected to the connecting beam, and the horizontal section of the T-shaped keel is arranged parallel to the connecting beam. External hinge seats are symmetrically provided on the front and rear sides of the horizontal section of the T-shaped keel, and boom tubes are symmetrically provided on the outsides of the two external hinge seats. The two boom tubes are movably hinged to the external hinge seats on the corresponding side through external shaft sleeves arranged at their upper ends. Foam shafts are symmetrically provided on the outer side walls of the two boom tubes, and foam is provided on both foam shafts.

[0011] Optionally, the air resistance mechanism includes cylinder hinge seats symmetrically arranged on the front and rear sides of the left end connecting beam, inner hinge seats symmetrically provided on the front and rear sides of the right end connecting beam, triangular linkage plates symmetrically provided under the two inner hinge seats, the upper corner ends of the two triangular linkage plates are movably hinged to the inner hinge seats on the corresponding side through inner shaft sleeves, and a cylinder is provided between the triangular linkage plate and the cylinder hinge seat on the same side, the cylinder seat of the cylinder is movably hinged to the cylinder hinge seat, and the end of its piston rod is movably hinged to the middle corner end of the triangular linkage plate through the piston rod hinge seat. , an inner wire clamping drum is provided at the lower corner end of the two triangular linkage plates, an inner clamping seat is provided on the side wall of the triangular linkage plate on the right side of the inner wire clamping drum, an outer wire clamping drum is provided at the bottom of the two boom tubes, and an outer clamping seat is provided at the bottom of the two boom tubes outside the outer wire clamping drum. A longitudinal beam is horizontally provided between the two supporting legs at the left end, and pulleys are provided on the longitudinal beams corresponding to the positions of the two outer wire clamping drums. Ropes are respectively wound around the two pulleys, and the left end of the rope is fixedly connected to the outer clamping seat on the corresponding side, and the right end thereof passes around the inner wire clamping drum on the corresponding side and is fixedly connected to the inner clamping seat on that side.

[0012] Optionally, the outer wire clamping drum, the pulley and the inner wire clamping drum on the same side are in the same vertical plane.

[0013] Optionally, the air supply mechanism includes a bottom beam fixed to the bottom of the two supporting legs at the left end, a bottom plate connected to the bottom beam is provided under the support frame, a compressor is provided on the bottom plate, the compressor is connected to the air supply tank provided on the bottom plate via a pipeline, each of the cylinders is connected to the air supply tank via a pipeline, a control device is provided between the bottom beam and the longitudinal beam, the compressor is connected to the control device via a wire; the display is connected to the control device via a wire.

[0014] Optionally, a buffer tank is further provided on the base plate, and the buffer tank is arranged on the pipeline between the compressor and the air supply tank.

[0015] Optionally, a protective cover is provided on the two supporting legs at the left end to cover the air supply mechanism.

[0016] The utility model adopts the above technical solution, and has the advantages of compact structural design, light weight, small size, no additional occupation of venue area, which can improve the utilization rate of the venue, and strong versatility. Athletes can quickly and directly adjust the size of resistance during training according to their own training habits, effectively improve training efficiency, and achieve precise control of resistance. The air resistance structure is adopted to make the swing force stable and controllable, which can effectively control the athlete's leg load, avoid the risk of leg strain, and improve safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model without the sponge support pad and protective cover;

[0019] Figure 3 Schematic diagram of the three-dimensional structure of the drive component;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the connection between the triangular linkage plate and the cylinder piston rod;

[0021] In the figure, 1. support frame; 101. curved beam; 102. connecting beam; 2. supporting leg; 3. sponge support pad; 4. handle; 5. display bracket; 6. display; 7. T-shaped keel; 8. external hinge seat; 9. boom tube; 10. external shaft sleeve; 11. foam shaft; 12. foam; 13. cylinder hinge seat; 14. internal hinge seat; 15. triangular linkage plate; 16. internal shaft sleeve; 17. cylinder; 18. piston rod hinge seat; 19. internal clamping drum; 20. internal clamping seat; 21. external clamping drum; 22. external clamping seat; 23. longitudinal beam; 24. pulley; 25. rope; 26. bottom beam; 27. bottom plate; 28. compressor; 29. air supply tank; 30. control device; 31. buffer tank; 32. protective cover. DETAILED DESCRIPTION

[0022] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0023] In addition, in the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0025] like Figure 1-4 As shown, in this embodiment, an air-resistance type prone leg curl trainer includes a support frame 1 and support legs 2 arranged at the four corners of the bottom of the support frame 1, a sponge support pad 3 is provided on the support frame 1, and the support frame 1 includes a curved beam 101 symmetrically arranged front and back, and the two curved beams 101 are connected by connecting beams 102 arranged at the left and right ends thereof, a driving assembly is provided on the outside of the connecting beam 102 at the left end, an air resistance mechanism matched with the driving assembly is provided below the support frame 1, and an air supply mechanism matched with the air resistance mechanism is provided below the air resistance mechanism; handles 4 are symmetrically provided on the outer side walls of the two supporting legs 2 at the right end, a screen display bracket 5 is provided on the supporting leg 2 at the right end, and a screen display 6 is provided on the screen display bracket 5.

[0026] Optionally, the driving assembly includes a T-shaped keel 7 whose end of the vertical section is fixedly connected to the connecting beam 102, and the horizontal section of the T-shaped keel 7 is arranged parallel to the connecting beam 102, and external hinge seats 8 are symmetrically provided on the front and rear sides of the horizontal section of the T-shaped keel 7, and boom tubes 9 are symmetrically provided on the outside of the two external hinge seats 8. The two boom tubes 9 are movably hinged to the external hinge seat 8 on the corresponding side through an external shaft sleeve 10 arranged at the upper end thereof, and foam shafts 11 are symmetrically provided on the outer side walls of the two boom tubes 9, and foam 12 is provided on the two foam shafts 11.

[0027] Optionally, the air resistance mechanism includes a cylinder hinge seat 13 symmetrically arranged on the front and rear sides of the left end connecting beam 102, and an inner hinge seat 14 symmetrically provided on the front and rear sides of the right end connecting beam 102, and a triangular linkage plate 15 symmetrically provided under the two inner hinge seats 14. The upper corner ends of the two triangular linkage plates 15 are movably hinged to the inner hinge seat 14 on the corresponding side through an inner shaft sleeve 16, and a cylinder 17 is provided between the triangular linkage plate 15 and the cylinder hinge seat 13 on the same side. The cylinder seat of the cylinder 17 is movably hinged to the cylinder hinge seat 13, and the end of the piston rod is movably hinged to the middle corner end of the triangular linkage plate 15 through the piston rod hinge seat 18. An inner wire clamping drum 19 is provided at the lower corner end of the two triangular linkage plates 15, and an inner clamping seat 20 is provided on the side wall of the triangular linkage plate 15 on the right side of the inner wire clamping drum 19. An outer wire clamping drum 21 is provided at the bottom of the two boom tubes 9, and an outer clamping seat 22 is provided at the bottom of the two boom tubes 9 outside the outer wire clamping drum 21. A longitudinal beam 23 is horizontally provided between the two supporting legs 2 at the left end, and pulleys 24 are provided on the longitudinal beam 23 corresponding to the positions of the two outer wire clamping drums 21. Ropes 25 are respectively wound around the two pulleys 24. The left end of the rope 25 is fixedly connected to the outer clamping seat 22 on the corresponding side, and the right end thereof bypasses the inner wire clamping drum 19 on the corresponding side and is fixedly connected to the inner clamping seat 20 on that side.

[0028] Optionally, the outer cable drum 21, the pulley 24 and the inner cable drum 19 on the same side are in the same vertical plane. The outer cable drum 21, the pulley 24 and the inner cable drum 19 are in the same vertical plane, which can ensure that the transmission of the rope 25 is straight and improves the stability of the transmission.

[0029] Optionally, the air supply mechanism includes a bottom beam 26 fixed to the bottom of the two supporting legs 2 at the left end, a bottom plate 27 connected to the bottom beam 26 is provided under the support frame 1, a compressor 28 is provided on the bottom plate 27, the compressor 28 is connected to the air supply tank 29 provided on the bottom plate 27 via a pipeline, each of the cylinders 17 is connected to the air supply tank 29 via a pipeline, a control device 30 is provided between the bottom beam 26 and the longitudinal beam 23, the compressor 28 is connected to the control device 30 via a wire; the display 6 is connected to the control device 30 via a wire.

[0030] Optionally, a buffer tank 31 is provided on the base plate 27 and is arranged in the pipeline between the compressor 28 and the air supply tank 29. The compressor 28 can first compress air and inject it into the buffer tank 31. When the air resistance needs to be increased, the air in the buffer tank 31 can be added to the air supply tank 29, thereby increasing the air pressure in the air supply tank 29 and further increasing the air resistance of the cylinder 17. In addition, the compressor 28 is not directly connected to the air supply tank 29, which can further improve the stability of the air pressure in the air supply tank 29.

[0031] Optionally, a protective cover 32 covering the air supply mechanism is provided on the two supporting legs 2 at the left end. The protective cover 32 can effectively isolate the air supply mechanism, preventing athletes from contacting the air supply mechanism during use, thereby improving safety of use.

[0032] When using this device, an athlete lies prone on the sponge support pad 3 of the support frame 1, with their head extended to the right from the sponge support pad 3. They then insert their legs from the outside under the foam pad 12, with their ankles facing the foam pad 12. The athlete then grasps the handles 4 on either side with both hands. The athlete can adjust the resistance level according to their training needs. A signal is sent to the control device 30 via the display 6, which in turn activates the two cylinders 17. The piston rods of the cylinders 17 push against the triangular linkage plate 15, providing support for the triangular linkage plate 15. When the athlete's legs exert force, the foam pad 12 and the foam shaft 11 drive the movable arm tube 9 to rotate, which in turn rotates upward along the outer hinge seat 8. As boom tube 9 moves, outer clamping seat 22 pulls rope 25, while pulley 24 acts as a guide. Rope 25, through inner clamping seat 20, rotates triangular linkage plate 15, which in turn rotates along inner hinge seat 14, thereby retracting the piston rod of push cylinder 17. Inner and outer clamping discs 19 and 21 limit and guide rope 25, ensuring it remains pulled in a straight line. When the athlete's legs exert force, cylinder 17 does not immediately push its piston outward. Instead, it exerts force linearly, eventually causing foam pad 12 to slowly return to its original position. It has a compact structure, light weight, and small size. It does not occupy additional venue area, can improve venue utilization, and has strong versatility. Athletes can quickly and directly adjust the resistance during training according to their own training habits, effectively improving training efficiency and achieving precise control of resistance. The air-resistance structure makes the swing force stable and controllable, which can effectively control the athlete's leg load, avoid the risk of leg strain, improve safety of use, and solve the problems existing in the existing technology.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention. For those skilled in the art, any replacement improvements or changes made to the implementation methods of the present invention fall within the scope of protection of the present invention.

[0034] Anything not described in detail in the present invention is well known to those skilled in the art.

Claims

1. An air resistance type prone leg curling training device, characterized in that: It includes a support frame and support legs arranged at the four corners of the bottom of the support frame, a sponge support pad is provided on the support frame, the support frame includes a curved beam symmetrically arranged front and back, the two curved beams are connected by connecting beams arranged at the left and right ends thereof, a driving assembly is provided on the outside of the connecting beam at the left end, an air resistance mechanism cooperating with the driving assembly is provided below the support frame, and an air supply mechanism cooperating with the air resistance mechanism is provided below the air resistance mechanism; handles are symmetrically provided on the outer side walls of the two supporting legs at the right end, a screen display bracket is provided on the supporting leg at the right end, and a screen display is provided on the screen display bracket.

2. The air resistance type prone leg curl training device according to claim 1, characterized in that: The driving assembly includes a T-shaped keel with the end of the vertical section fixedly connected to the connecting beam, and the horizontal section of the T-shaped keel is arranged parallel to the connecting beam. External hinge seats are symmetrically provided on the front and rear sides of the horizontal section of the T-shaped keel, and boom tubes are symmetrically provided on the outsides of the two external hinge seats. The two boom tubes are movably hinged to the external hinge seats on the corresponding side through external shaft sleeves arranged at their upper ends. Foam shafts are symmetrically provided on the outer side walls of the two boom tubes, and foam is provided on both foam shafts.

3. The air resistance type prone leg curl training device according to claim 2, characterized in that: The air resistance mechanism includes cylinder hinge seats symmetrically arranged on the front and rear sides of the left end connecting beam, inner hinge seats symmetrically arranged on the front and rear sides of the right end connecting beam, triangular linkage plates symmetrically arranged under the two inner hinge seats, the upper corner ends of the two triangular linkage plates are movably hinged to the inner hinge seats on the corresponding side through inner shaft sleeves, a cylinder is provided between the triangular linkage plate and the cylinder hinge seat on the same side, the cylinder seat of the cylinder is movably hinged to the cylinder hinge seat, and the end of its piston rod is movably hinged to the middle corner end of the triangular linkage plate through the piston rod hinge seat. The lower corner ends of the two triangular linkage plates are each provided with an inner wire clamping drum, and the side wall of the triangular linkage plate on the right side of the inner wire clamping drum is provided with an inner clamping seat, the bottom of the two boom tubes are provided with an outer wire clamping drum, and the bottom of the two boom tubes outside the outer wire clamping drum are provided with an outer clamping seat, a longitudinal beam is horizontally provided between the two supporting legs at the left end, pulleys are provided on the longitudinal beam corresponding to the positions of the two outer wire clamping drums, and ropes are respectively wound around the two pulleys, the left end of the rope is fixedly connected to the outer clamping seat on the corresponding side, and the right end thereof passes around the inner wire clamping drum on the corresponding side and is fixedly connected to the inner clamping seat on that side.

4. The air resistance type prone leg curl training device according to claim 3, characterized in that: The outer wire clamping drum, the pulley and the inner wire clamping drum on the same side are in the same vertical plane.

5. The air resistance type prone leg curl training device according to claim 3, characterized in that: The air supply mechanism includes a bottom beam fixed at the bottom of the two supporting legs at the left end, a bottom plate connected to the bottom beam is provided under the support frame, a compressor is provided on the bottom plate, the compressor is connected to the air supply tank provided on the bottom plate via a pipeline, each of the cylinders is connected to the air supply tank via a pipeline, a control device is provided between the bottom beam and the longitudinal beam, the compressor is connected to the control device via a wire; the display is connected to the control device via a wire.

6. The air resistance type prone leg curl training device according to claim 5, characterized in that: A buffer tank is also provided on the bottom plate and is arranged on a pipeline between the compressor and the air supply tank.

7. The air resistance type prone leg curl training device according to claim 5, characterized in that: The two supporting legs at the left end are provided with a protective cover which covers the air supply mechanism.

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