A fitness device that simulates stepping or mountain climbing

Abstract

A fitness device simulating stepping or mountain climbing includes a main frame and two pedal assemblies, the two pedal assemblies being rotatably connected to the left and right sides of the main frame. The main frame has an upwardly extending and forward-leaning support. It also includes a handle assembly connected to the top of the support. Each pedal assembly includes two foot rods, two pedals, and two hydraulic cylinders. The two foot rods are located on the left and right sides of the support, with their front ends rotatably connected to the main frame. The two pedals are located at the rear of the two foot rods. The two hydraulic cylinders are located on the left and right sides of the support, connected between the main frame and the corresponding side foot rods to provide hydraulic damping. The oil pipes of the rodless chambers of the two hydraulic cylinders are connected to form a hydraulic circuit to drive the side pedal assemblies to perform alternating reciprocating motion. This invention improves motion stability and increases the pedal swing amplitude.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment, and in particular to a fitness device that simulates stepping or mountain climbing. Background Technology

[0002] To make it easier for people to exercise without leaving home, various indoor exercise equipment has appeared on the market. Among them, the stepper is a commonly used one. The stepper allows exercisers to repeatedly climb stairs, which can enhance the function of the cardiovascular system and fully exercise the thigh and calf muscles. It is small in size, does not take up much space, and is suitable for use anywhere in the home. It is a fitness equipment that is very popular among consumers.

[0003] Existing steppers typically include a base frame, a left pedal, and a right pedal. A front support is located at the front end of the base frame, allowing the front ends of the left and right pedals to rotate rotatably with the front support frame. Hydraulic cylinders are installed between the left and right pedals and the base frame. However, the distance between the rotating connection points of the left and right pedals and the front support frame in this structure is relatively small, resulting in a limited range of pedal swing. Furthermore, the traditional design lacks an upward-extending support structure, leading to insufficient stability during rapid movement and limiting the user's exercise intensity. Utility Model Content

[0004] The main purpose of this invention is to overcome the shortcomings of existing stepper machines, such as small pedal swing amplitude and insufficient stability during rapid movement. It proposes a fitness device that mimics stepping or mountain climbing, which can increase the pedal swing amplitude and improve movement stability.

[0005] The present invention adopts the following technical solution:

[0006] A fitness equipment simulating stepping or mountain climbing includes a main frame and two pedal assemblies, the two pedal assemblies being rotatably connected to the left and right sides of the main frame; the main frame has an upwardly extending and forward-tilting support; it also includes a handle assembly connected to the top of the support; each pedal assembly includes two foot rods, two pedals, and two hydraulic cylinders, the two foot rods being located on the left and right sides of the support respectively, the front ends of the foot rods being rotatably connected to the main frame, and the two pedals being located at the rear of the two foot rods respectively; the two hydraulic cylinders are located on the left and right sides of the support respectively, the hydraulic cylinders being connected between the main frame and the corresponding side foot rods to provide hydraulic damping, and the oil pipes of the rodless chambers of the two hydraulic cylinders being connected to form a hydraulic circuit to drive the side pedal assembly to perform alternating reciprocating motion.

[0007] The front end of the main frame is fixed with a connecting rod extending in the left-right direction. The front end of the pedal is provided with a connecting sleeve, which is fitted onto the connecting rod to achieve a rotatable connection. Near the middle of the pedal, there are also two connecting plates. The end of the piston rod of the oil cylinder is rotatably connected between the two connecting plates.

[0008] The connecting piece is provided with a plurality of adjustment holes spaced apart along the length of the pedal rod; by selecting different positions of the adjustment holes to connect to the end of the piston rod of the hydraulic cylinder, the upper limit of the vertical movement of the pedal can be adjusted.

[0009] The distance between the front end of the pedal and the front end of the pedal forms an extended section, thereby increasing the swing amplitude of the pedal.

[0010] It also includes a regulating valve, which is connected between the two oil pipes of the two cylinders to regulate the flow rate of the hydraulic circuit, thereby regulating the resistance of the pedal.

[0011] The regulating valve includes a valve body and a valve core. The valve body has an interface that communicates with the two oil pipes. One end of the valve core is inserted into the valve body and has a circumferentially movable adjusting part. The other end has an operating part located outside the valve body. The adjusting part has a connecting hole. By rotating the operating part, the adjusting part is driven to move circumferentially, thereby changing the flow area of ​​the connecting hole and adjusting the flow rate of the hydraulic oil circuit.

[0012] The main frame also includes a support rod and two support seats; the support rod is located at the front of the main frame and its top end is connected to the bracket; the two support seats are arranged front and rear and are respectively connected to the bottom end of the bracket and the support rod; the front end of the step rod is rotatably connected to the support rod.

[0013] The support base connected to the bracket is also provided with two buffer pads, which are located on the left and right sides of the bracket and opposite to the rear ends of the two foot rods.

[0014] The handle assembly includes two handles, which are detachably and fixedly connected to the bracket and are located on the left and right sides of the bracket, respectively.

[0015] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0016] 1. In this utility model, a forward-leaning bracket is set up to work in conjunction with the handle assembly to form a stable motion support structure; the pedal is set on the pedal rod, and the swing amplitude of the pedal is increased by lengthening the pedal rod; a two-cylinder hydraulic linkage structure is adopted to ensure that the left and right pedals alternate naturally, making the movement process smoother and simulating the gait rhythm of real stepping or climbing.

[0017] 2. In this utility model, the main frame forms a stable triangular mechanical system through the herringbone support structure (bracket and support rod) and the front and rear distributed support seats, so that the overall frame maintains rigid support during movement; the setting of the buffer pad can effectively absorb the impact force at the end of the pedal, provide flexible and silent buffer at the extreme position of movement, and avoid direct collision of metal parts.

[0018] 3. In this utility model, several adjustment holes are provided on the connecting piece of the pedal rod. By selecting the adjustment holes at different positions to connect to the end of the piston rod of the hydraulic cylinder, the upper limit of the pedal's vertical movement range can be adjusted to meet the needs of different users.

[0019] 4. In this utility model, an adjusting valve is installed on the oil pipe. By rotating the operating part, the valve core is driven to move circumferentially, thereby changing the opening of the connecting hole of the adjusting part, thus adjusting the flow area of ​​the hydraulic oil circuit and realizing the adjustment of the pedal movement resistance. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present utility model;

[0021] Figure 2 for Figure 1 Exploded view;

[0022] Figure 3 for Figure 1 Side view Figure 1 ;

[0023] Figure 4 for Figure 1 Side view Figure 2 ;

[0024] Figure 5 for Figure 1 Rear view;

[0025] Figure 6 for Figure 1 Top view;

[0026] Figure 7 Here is a structural diagram of the control valve;

[0027] Figure 8 This is the front view of the control valve;

[0028] Figure 9 for Figure 8 AA section view;

[0029] Figure 10 The diagram shows the state of the two hydraulic cylinders (right pedal on top);

[0030] Figure 11 The diagram shows the state of the two hydraulic cylinders (left pedal on top);

[0031] in:

[0032] 10. Main frame; 11. Bracket; 12. Support rod; 13. Support seat; 14. Foot pad; 15. Buffer pad; 16. Spacer; 17. Spring nut; 18. Connecting rod; 19. Pipe plug; 20. Pedal assembly; 21. Pedal lever; 21a. Extension section; 22. Connecting sleeve; 23. Connecting piece; 24. Adjustment hole; 25. Pedal; 26. Hydraulic cylinder; 26a. Oil pipe; 27. Piston rod; 28. Bolt; 29. ​​Nut; 30. Handle assembly; 31. Handle; 40. Adjusting valve; 41. Valve body; 42. Interface; 43. Valve core; 44. Adjustment part; 45. Operating part; 46. Connecting hole. Detailed Implementation

[0033] The present invention will be further described below through specific embodiments.

[0034] See Figures 1 to 11 A fitness equipment simulating stepping or mountain climbing includes a main frame 10, two pedal assemblies 20, and a handle assembly 30. The main frame 10 has an upwardly extending and forward-leaning support 11 located in the middle of the main frame 10. The handle assembly 30 is connected to the top of the support 11. The two pedal assemblies 20 are rotatably connected to the left and right sides of the main frame 10 near the bottom, and are located on the left and right sides of the support 11. The pedal assembly 20 includes two foot rods 21, two pedals 25, and two hydraulic cylinders 26. The two foot rods 21 are located on the left and right sides of the support 11, respectively. The front end of the foot rod 21 is rotatably connected to the main frame 10, and the rear end of the foot rod 21 is suspended. The two pedals 25 are respectively located at the rear of the two foot rods 21, and the pedals 25 are fixedly connected to the foot rods 21 by screws. The two hydraulic cylinders 26 are located on the left and right sides of the support 11, respectively, and are connected between the main frame 10 and the corresponding foot rods 21 and are inclined. Hydraulic damping is provided by the cylinder 26, and the oil pipes 26a of the rodless chambers of the two cylinders 26 are connected to form a hydraulic oil circuit to drive the side pedal assembly 20 to perform alternating reciprocating motion.

[0035] In this example, the handle assembly 30 includes two handles 31, which are detachably and fixedly connected to the bracket 11 and located on the left and right sides of the bracket 11 respectively. The handles 31 and the bracket 11 can be locked together using locking sleeves and screws. The forward-leaning bracket 11 works in conjunction with the handle assembly 30 to form a stable motion support structure. The pedal 25 is set on the pedal bar 21, and there is a distance between the front end of the pedal bar 21 and the front end of the pedal 25 to form an extended section 21a, which increases the swing amplitude of the pedal 25. The position of the pedal 25 on the pedal bar 21 can even be adjusted as needed to meet the requirements of different swing amplitudes. The hydraulic linkage structure of two cylinders 26 ensures that the left and right pedals 25 alternate naturally, making the movement process smoother and simulating the gait rhythm of real stepping or mountain climbing.

[0036] The main frame 10 also includes a support rod 12 and two support seats 13. The support rod 12 is located at the front of the main frame 10 and its top end is connected to the bracket 11. The connection between the support rod 12 and the bracket 11 is located at the lower middle part of the bracket 11, so that the support rod 12 and the bracket 11 form a herringbone-shaped support structure. The two support seats 13 are arranged front and rear and are connected to the bottom ends of the bracket 11 and the support rod 12 respectively. The support seat 13 is a hollow tube extending in the left and right direction, and tube plugs can be set at both ends in the length direction of the tube. The bottom of the support seat 13 is provided with a foot pad 14, and two buffer pads 15 are also provided on the support seat 13 connected to the bracket 11. The two buffer pads 15 are located on the left and right sides of the bracket 11 respectively and are opposite to the rear ends of the two foot rods 21.

[0037] The main frame 10 of this application forms a stable triangular mechanical system through a herringbone support structure (bracket 11 and support rod 12) and front and rear distributed support seats 13, so that the overall frame maintains rigid support during movement. The buffer pad 15 can effectively absorb the impact force at the end of the pedal 25, providing flexible and silent cushioning at the extreme position of movement and avoiding direct collision of metal parts.

[0038] The front end of the main frame 10, i.e. the support rod 12, is fixed with a connecting rod 18 extending in the left and right direction. The front end of the step rod 21 is provided with a connecting sleeve 22. The connecting sleeve 22 is sleeved on the connecting rod 18 to achieve a rotatable connection. At both ends of the connection between the connecting sleeve 22 and the connecting rod 18, spacers 16 are also sleeved. Spacers 16 and spring nuts 17 are also sleeved between the connecting sleeve 22 and the left or right side of the support rod 12 for separation.

[0039] Two connecting plates 23 are provided on the left and right sides near the middle of the pedal 21. Two connecting plates 23 are also provided on the left and right sides of the support base 13, which is connected to the connecting rod 18. One end of the rodless chamber of the hydraulic cylinder 26 is rotatably connected to the two connecting plates 23 on the support base 13. The end of the piston rod 27 of the hydraulic cylinder 26 is rotatably connected between the two connecting plates 23 of the pedal 21. The pedal 21 and the piston rod 27 can be rotatably connected using bolts 28 and nuts 29.

[0040] Furthermore, the connecting piece 23 on the pedal 21 is provided with several adjusting holes 24 spaced apart along the length of the pedal 21. By selecting different positions of the adjusting holes 24 to connect to the end of the piston rod 27 of the hydraulic cylinder 26, the upper limit of the vertical movement of the pedal 25 can be adjusted to meet the needs of different users.

[0041] It also includes a regulating valve 40, which is connected between the two oil pipes 26a of the two cylinders 26 to regulate the flow rate of the hydraulic oil circuit, thereby regulating the resistance of the pedal 25. The regulating valve 40 includes a valve body 41 and a valve core 43. The valve body 41 has an interface 42 communicating with the two oil pipes 26a and an inner cavity communicating with the interface 42. The valve core 43 can move circumferentially relative to the valve body 41. One end of the valve core 43 has an adjusting part 44 that is inserted into the inner cavity of the valve body 41. The adjusting part 44 has a connecting hole 46, which is an arc groove or a spiral groove, etc. A sealing ring is fitted around the outer periphery of the adjusting part 44 to seal against the side wall of the inner cavity of the valve body 41. The other end has an operating part 45 located outside the valve body 41. By rotating the operating part 45, the adjusting part 44 is driven to move circumferentially, and the matching area between the connecting hole 46 and the interface 42 changes, that is, the flow area of ​​the connecting hole 46 changes, thereby regulating the flow rate of the hydraulic oil circuit and thus regulating the resistance of the pedal 25. For example, when the adjusting part 44 moves clockwise, the flow area of ​​the connecting hole 46 gradually decreases, the flow resistance of the hydraulic oil increases, and the pedal 25 requires a greater force to move; conversely, when the adjusting part 44 rotates counterclockwise, the flow area of ​​the connecting hole 46 increases, the flow resistance of the hydraulic oil decreases, and the pedal 25 moves more easily.

[0042] This invention simulates stepping or mountain climbing motion through a hydraulic linkage mechanism: the user stands on the left and right pedals 25, holding the handles 31 for balance. When one pedal 25 is pressed down, the pedal 21 drives the piston rod 27 of the corresponding cylinder 26 to retract, causing hydraulic oil in the rodless chamber of cylinder 26 to flow through the oil pipe 26a into the rodless chamber of the other cylinder 26, pushing the piston rod 27 of that side to extend, thereby raising the other pedal 25. The two cylinders 26 are linked by a hydraulic circuit to achieve the alternating raising and lowering motion of the left and right pedals 25. See [link to documentation]. Figure 10 , Figure 11 The entire movement process uses hydraulic linkage to achieve a natural alternating stepping rhythm, simulating the state of stepping or mountain climbing.

[0043] When resistance needs to be adjusted, the hydraulic oil passage flow area is adjusted by changing the matching area of ​​the connecting hole 46 of the valve core 43 and the interface 42 through the operating part 45, thereby controlling the hydraulic oil flow resistance and realizing the adjustment of the movement resistance of the pedal 25.

[0044] The terms "first" and "second" used in this utility model are merely for ease of description and to distinguish different components with the same name, and do not indicate a sequential or primary / secondary relationship.

[0045] In the description of this utility model, the orientation or positional relationship indicated by terms such as "up", "down", "left", "right", "front" and "back" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and is not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this utility model.

[0046] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0047] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A treadmilling or mountain-climbing fitness equipment, comprising a main frame and two tread plate sets, the two tread plate sets being rotatably connected to left and right sides of the main frame; characterized in that: The main frame is provided with an upwardly extending and forward-inclined support; it also includes a handle assembly connected to the top of the support; the pedal assembly includes two pedals, two pedals, and two hydraulic cylinders, the two pedals are respectively located on the left and right sides of the support, the front end of the pedals is rotatably connected to the main frame, and the two pedals are respectively located at the rear of the two pedals; the two hydraulic cylinders are respectively located on the left and right sides of the support, the hydraulic cylinders are connected between the main frame and the corresponding pedals to provide hydraulic damping, and the oil pipes of the rodless chambers of the two hydraulic cylinders are connected to form a hydraulic circuit to drive the pedal assembly to perform alternating reciprocating motion.

2. A treadmilling or mountain climbing exercise apparatus as claimed in claim 1, wherein: The front end of the main frame is fixed with a connecting rod extending in the left-right direction. The front end of the pedal is provided with a connecting sleeve, which is fitted onto the connecting rod to achieve a rotatable connection. Near the middle of the pedal, there are also two connecting plates. The end of the piston rod of the oil cylinder is rotatably connected between the two connecting plates.

3. A treadmilling or mountain climbing exercise apparatus as claimed in claim 2, wherein: The connecting piece is provided with a plurality of adjustment holes spaced apart along the length of the pedal rod; by selecting different positions of the adjustment holes to connect to the end of the piston rod of the hydraulic cylinder, the upper limit of the vertical movement of the pedal can be adjusted.

4. A treadmilling or mountain climbing exercise apparatus as claimed in claim 1, wherein: The distance between the front end of the pedal and the front end of the pedal forms an extended section, thereby increasing the swing amplitude of the pedal.

5. A treadmilling or mountain climbing exercise apparatus as claimed in claim 1, wherein: It also includes a regulating valve, which is connected between the two oil pipes of the two cylinders to regulate the flow rate of the hydraulic circuit, thereby regulating the resistance of the pedal.

6. A treadmilling or mountain climbing exercise apparatus as claimed in claim 5 wherein: The regulating valve includes a valve body and a valve core. The valve body has an interface that communicates with the two oil pipes. One end of the valve core is inserted into the valve body and has a circumferentially movable adjusting part. The other end has an operating part located outside the valve body. The adjusting part has a connecting hole. By rotating the operating part, the adjusting part is driven to move circumferentially, thereby changing the flow area of ​​the connecting hole and adjusting the flow rate of the hydraulic oil circuit.

7. A treadmilling or mountain climbing exercise apparatus as claimed in claim 1, wherein: The main frame also includes a support rod and two support seats; the support rod is located at the front of the main frame and its top end is connected to the bracket; the two support seats are arranged front and rear and are respectively connected to the bottom end of the bracket and the support rod; the front end of the step rod is rotatably connected to the support rod.

8. A treadmilling or mountain climbing exercise apparatus as claimed in claim 7, wherein: Two buffer pads are also provided on the support base connected to the bracket. The two buffer pads are located on the left and right sides of the bracket and are opposite to the rear ends of the two foot rods.

9. A treadmilling or mountain climbing exercise apparatus as claimed in claim 1, wherein: The handle assembly includes two handles, which are detachably and fixedly connected to the bracket and are located on the left and right sides of the bracket, respectively.

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