An elliptical exercise machine

By introducing a two-stage transmission component and a magnetically controlled eddy current device into the stepper, the rotational speed and resistance of the magnetically controlled wheel are increased, solving the problem of the small resistance adjustment range of existing steppers, improving the training effect and reducing the size of the equipment, making it easier to use and store.

CN224484815UActive Publication Date: 2026-07-14XIAMEN MYDO SPORTS EQUIP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN MYDO SPORTS EQUIP
Filing Date
2025-06-03
Publication Date
2026-07-14

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  • Figure CN224484815U_ABST
    Figure CN224484815U_ABST
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Abstract

The utility model discloses a kind of slide machine structures, including oblique rack, two sliding seats and resistance module;Two sliding seats are reciprocatingly slidably connected on oblique rack, resistance module is installed on oblique rack, for providing the resistance of sliding seat sliding;The resistance module includes sliding seat transmission member and secondary transmission assembly, and the secondary transmission assembly includes transmission disc, magnetic control wheel and magnet piece;Sliding seat transmission member is transmission connected between two sliding seats and the transmission disc of secondary transmission assembly, transmission disc and magnetic control wheel transmission are connected, magnetic control wheel and magnet piece form magnetic control eddy current device;The reciprocating movement of two sliding seats drives sliding seat transmission member movement, the movement of sliding seat transmission member drives transmission disc rotation, the rotation of transmission disc drives magnetic control wheel rotation. Therefore, by using secondary transmission assembly, speed ratio can be improved, magnetic control wheel speed can be increased, so as to increase the eddy current of cutting magnetic induction line, improve the resistance generated by reverse magnetic field, and improve the exercise effect.
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Description

Technical Field

[0001] This utility model relates to the technical field of fitness equipment, and in particular to a gliding step machine structure. Background Technology

[0002] As people's living standards improve, the demand for home fitness equipment is increasing. Traditional home walking machines and treadmills can no longer meet people's diverse fitness needs.

[0003] As a result, a stepper machine has emerged on the market. Stepper machines have the advantage of not injuring the knees and can specifically target the muscles on the inner thighs, preventing fat accumulation. They are popular among fitness enthusiasts and those seeking to lose weight, and have a broad market prospect. Existing stepper machines typically require elastic ropes to achieve reciprocating movement and resistance adjustment for the sliding pedals, or use traction ropes or belts with magnetic eddy current devices for resistance adjustment. For example, the stair climber disclosed in Chinese patent CN 209952121 U uses a drive belt with a magnetic control device for resistance adjustment. However, in this solution, the rotational speed of the magnetic control wheel in the damping structure directly depends on the speed of the foot pedal's up-and-down sliding, which is relatively low. Therefore, the adjustable resistance of its magnetic control device is small, resulting in poor training effectiveness. Utility Model Content

[0004] The purpose of this invention is to provide a stepper structure that has the advantage of increasing the resistance of the magnetic control wheel.

[0005] To achieve the above objectives, the solution of this utility model is:

[0006] A stepper structure includes an inclined frame, two slides, and a resistance module; the two slides are reciprocally slidably connected to the inclined frame, and the resistance module is mounted on the inclined frame to provide resistance to the sliding of the slides;

[0007] The resistance module includes a slide transmission component and a secondary transmission assembly. The secondary transmission assembly includes a transmission disk, a magnetic control wheel, and a magnet. The slide transmission component is driven between two slides and the transmission disk of the secondary transmission assembly. The transmission disk and the magnetic control wheel are driven together. The magnetic control wheel and the magnet form a magnetically controlled eddy current device.

[0008] The reciprocating movement of the two slides drives the slide transmission component to move, the movement of the slide transmission component drives the transmission disk to rotate, the rotation of the transmission disk drives the magnetic control wheel to rotate, and the rotation of the magnetic control wheel needs to overcome the attraction of the magnet and provide corresponding resistance.

[0009] Furthermore, the sliding block transmission component is a chain; a sprocket is fixedly mounted on the rotating shaft of the transmission disc; the middle part of the chain is wound around the sprocket, and the two ends of the chain are respectively connected to two sliding blocks.

[0010] Furthermore, the sliding block transmission component consists of two pull ropes; a take-up reel is fixedly mounted on the rotating shaft of the transmission disc, and the take-up reel has two axially spaced take-up ring grooves; one end of each of the two pull ropes is wound and unwound within the two take-up ring grooves, and the other end of each pull rope is connected to a sliding block.

[0011] Furthermore, the sliding block transmission component is a belt; a pulley is fixedly fitted on the rotating shaft of the transmission disc, and an adjusting wheel is provided at one end of the inclined frame away from the transmission disc along the running direction of the sliding block; the belt drive is wound around the pulley and the adjusting wheel, and the two sliding blocks are respectively connected to the belt on both sides located between the pulley and the adjusting wheel.

[0012] Furthermore, the slide transmission component and the secondary transmission assembly are located on the back of the inclined frame; the two slides are located on the front of the inclined frame and are respectively connected to the slide transmission component to the rear.

[0013] Furthermore, the transmission disc and the magnetic control wheel are arranged side by side, and the transmission disc and the magnetic control wheel are connected by a transmission belt; the transmission belt is wound around the outer peripheral wall of the transmission disc and the shaft of the magnetic control wheel.

[0014] Furthermore, a mounting frame is installed at the upper end of the inclined frame; the transmission disc and the magnetic control wheel are rotatably arranged side by side in the mounting frame; a tensioning wheel that is adjustable to one side of the transmission belt is also installed in the mounting frame; the magnet is located close to the outer peripheral wall of the magnetic control wheel; the magnet includes an arc-shaped magnet frame and several magnets installed in the inner arc wall of the magnet frame; one end of the magnet frame is hinged to the mounting frame, and the other end is equipped with a pull-wire motor, which can be adjusted to move closer to or further away from the magnetic control wheel.

[0015] Furthermore, the inclined frame has two sliding grooves on the left and right sides; the left and right sides of the sliding grooves are respectively provided with guide rails spaced apart vertically; the left and right ends of the slide block are respectively provided with two pulleys spaced apart front and back, and the pulleys slide between the upper and lower guide rails.

[0016] Furthermore, the guide rail is a round tube, square tube, or elliptical tube; the pulley is recessed with an annular groove that matches the guide rail.

[0017] Furthermore, it also includes a support bracket and a handrail bracket; the support bracket is foldable and unfoldable and is located below the inclined frame; the support bracket can be hinged to the rear end of the inclined frame at a preset angle so that the inclined frame can maintain an upward tilt at the rear end.

[0018] The handrail bracket is foldable and unfoldable and is located above the inclined frame; the handrail bracket can be hinged to the rear end of the inclined frame at a preset angle for the user to hold onto.

[0019] The slide is equipped with a pedal.

[0020] After adopting the above technical solution, when using the stepper for exercise, the reciprocating sliding of the two slides can simultaneously drive the slide transmission component to move. The movement of the slide transmission component can then drive the transmission disc of the secondary transmission component to rotate, and the transmission disc in turn drives the magnetic control wheel to rotate. By setting the transmission disc to indirectly drive the magnetic control wheel to rotate, compared with the prior art, the structure of this utility model can achieve a higher magnetic control wheel speed at the same foot pedal speed. That is, the speed ratio can be increased and the speed of the magnetic control wheel can be increased through the secondary transmission. The higher the speed of the magnetic control wheel of the magnetic control eddy current device, the greater the amount of eddy current generated when the magnetic control wheel cuts the magnetic field lines of the stationary magnetic field of the magnet when it rotates, and therefore the greater the resistance of the reverse magnetic field generated.

[0021] Therefore, the upper limit of the resistance generated by the magnetically controlled eddy current device that needs to be overcome by the slide transmission component when the foot slide of this utility model is greater, which can achieve good resistance training and better training effect.

[0022] Meanwhile, this embodiment uses a two-stage transmission component, which can reduce the size of the magnetic control wheel, save product space, make it easier to reduce the overall size of the skateboard, facilitate user use and storage, and provide a better user experience. Attached Figure Description

[0023] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0024] Figure 2 This is an exploded view of Embodiment 1 of the present invention;

[0025] Figure 3 This is a schematic diagram of the rear structure of Embodiment 1 of this utility model;

[0026] Figure 4 This is a partial exploded view of Embodiment 1 of the present invention;

[0027] Figure 5 This is a schematic diagram of the chain and secondary transmission assembly of Embodiment 1 of this utility model;

[0028] Figure 6 This is a schematic diagram showing the cooperation between the secondary transmission component and the mounting bracket in Embodiment 1 of this utility model;

[0029] Figure 7 This is a partial structural schematic diagram of Embodiment 2 of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the pull rope and the secondary transmission assembly in Embodiment 2 of this utility model;

[0031] Figure 9This is a partial structural schematic diagram of Embodiment 3 of the present invention;

[0032] Figure 10 This is a schematic diagram of the belt, adjusting wheel, and secondary transmission assembly in Embodiment 3 of this utility model.

[0033] Labeling: 1. Inclined frame, 11. Mounting bracket, 111. Mounting groove, 112. Strip hole, 12. Slide groove, 121. Guide rail, 13. Front bracket, 14. Rear bracket, 15. Bottom cover, 16. Left cover, 17. Right cover, 18. Top cover, 19. Protective cover, 2. Slide, 21. Connecting piece, 22. Pulley, 23. Pedal, 3. Resistance module, 31. Slide transmission component, 311. Chain, 312. Pull rope, 313. Belt, 32. Secondary transmission component, 32. Transmission disc, 321. Magnetic control wheel, 322. Magnet, 323. Rotating shaft, 324. Sprocket, 325. Transmission belt, 326. Wheel shaft, 327. Tensioning wheel, 328. Magnet frame, 329. Magnet, 330. Wire pull motor, 331. Rewinding reel, 332. Rewinding ring groove, 333. Pulley, 334. Adjusting wheel, 335. Clamping block, 336. Support bracket, 4. Handrail bracket, 5. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Example 1

[0036] like Figures 1 to 4 As shown, a stepper structure of this embodiment includes an inclined frame 1, two slides 2, and a resistance module 3; the two slides 2 are slidably connected to the inclined frame 1 in a reciprocating motion, and the resistance module 3 is installed on the inclined frame 1 to provide resistance for the sliding of the slides 2.

[0037] In this embodiment, the resistance module 3 includes a slide transmission component 31 and a secondary transmission component 32. The secondary transmission component 32 includes a transmission disk 321, a magnetic control wheel 322, and a magnet 323. The slide transmission component 31 is driven between the two slides 2 and the transmission disk 321 of the secondary transmission component 32. The transmission disk 321 and the magnetic control wheel 322 are driven together. The magnetic control wheel 322 and the magnet 323 form a magnetically controlled eddy current device.

[0038] The reciprocating movement of the two slide blocks 2 drives the slide block transmission component 31 to move. The movement of the slide block transmission component 31 drives the transmission disk 321 to rotate. The rotation of the transmission disk 321 is linked to the rotation of the magnetic control wheel 322.

[0039] Therefore, when using this stepper for exercise, the reciprocating motion of the two slides 2 simultaneously drives the slide transmission component 31. The movement of the slide transmission component 31, in turn, drives the transmission disc 321 of the secondary transmission assembly 32 to rotate. The transmission disc 321, in turn, drives the magnetic control wheel 322 to rotate. That is, by indirectly driving the magnetic control wheel 322 with the transmission disc 321, the speed ratio can be increased, and the rotational speed of the magnetic control wheel 322 can be increased. The higher the rotational speed of the magnetic control wheel 322 in the magnetic control eddy current device, the greater the eddy current generated when the magnetic control wheel 322 cuts the magnetic field lines of the stationary magnetic field of the magnet 323, and thus the greater the resistance of the resulting reverse magnetic field. Therefore, when the slides 2 slide, the slide transmission component 31 needs to overcome the resistance of the magnetic control eddy current device within the secondary transmission assembly 32 to achieve resistance training, improve the training effect, and achieve the desired training purpose. The higher the upper limit of the adjustable resistance of the magnetic control eddy current device, the better the training effect can be achieved.

[0040] This embodiment uses a two-stage transmission component 32, which uses a transmission disc 321 to drive the magnetic control wheel 322 to rotate. This also reduces the size of the magnetic control wheel 322, saving product space, making it easier to reduce the overall size of the skateboard, and making it more convenient for users to use and store, resulting in a better user experience.

[0041] In this embodiment, the slide transmission component 31 is described using a chain 311 as an example.

[0042] like Figure 2 and Figure 5 Specifically, a sprocket 325 can be fitted and fixed on the rotating shaft core 324 of the transmission disk 321, and the outer diameter of the sprocket 325 is smaller than that of the transmission disk 321; the middle part of the chain 311 is wound around the sprocket 325, and the two ends of the chain 311 are respectively connected to two slides 2.

[0043] Therefore, when the left slide 2 moves down, it pulls the left end of the chain 311 down and drives the sprocket 325 to rotate, while simultaneously driving the right end of the chain 311 and the right slide 2 to move up. When the right slide 2 moves down, it pulls the right end of the chain 311 down and drives the sprocket 325 to rotate in the opposite direction, while simultaneously driving the left end of the chain 311 and the left slide 2 to move up. This process repeats itself. As the left and right slides 2 move up and down in sequence, the sprocket 325 and the transmission disc 321 can be continuously driven to rotate back and forth. The rotation of the transmission disc 321, which is connected to the magnetic control wheel 322, needs to overcome the resistance generated by the magnetic control eddy current device, which can provide corresponding resistance to the movement of the left and right slides 2.

[0044] like Figure 2 and Figure 3As shown, both the slide transmission component 31 and the secondary transmission component 32 can be located on the back of the inclined frame 1; the two slides 2 are located on the front of the inclined frame 1 and are connected to the slide transmission component 31 to the rear respectively. The slides 2 can be provided with an "L"-shaped connecting piece 21 to facilitate connection and fixation with the slide transmission component 31.

[0045] like Figure 5 As shown, the transmission disc 321 and the magnetic control wheel 322 can be arranged side by side, and are connected by a transmission belt 326. The transmission belt 326 is wound around the outer peripheral wall of the transmission disc 321 and the shaft 327 of the magnetic control wheel 322. This allows for a reduction in the size of the magnetic control wheel 322 while ensuring transmission efficiency. In this embodiment, the transmission belt 326 can be a wedge-shaped belt, which provides good transmission performance.

[0046] like Figure 2 and Figure 6 As shown, a mounting frame 11 can be installed on the upper end of the inclined frame 1; the transmission disk 321 and the magnetic control wheel 322 can be rotatably arranged side by side in the mounting frame 11; a mounting groove 111 can be provided inside the mounting frame 11, and the two ends of the rotation shaft core 324 of the transmission disk 321 are rotatably connected to the two side walls of the mounting groove 111, while the two ends of the wheel shaft 327 of the magnetic control wheel 322 are also rotatably connected to the two side walls of the mounting groove 111.

[0047] See Figure 3 The mounting bracket 11 is also equipped with a tensioning wheel 328 that is adjustable to one side of the transmission belt 326. The mounting bracket 11 may be provided with a strip hole 112 for adjusting the position of the tensioning wheel 328, so as to adjust the tension of the transmission belt 326.

[0048] like Figure 6 The magnet 323 is located near the outer peripheral wall of the magnetic control wheel 322. The magnet 323 includes an arc-shaped magnet frame 329 and several magnets 330 mounted on the inner arc wall of the magnet frame 329. One end of the magnet frame 329 is hinged to the mounting bracket 11, and the other end is equipped with a wire-pulling motor 331, allowing the other end of the magnet frame 329 to be adjusted to move closer to or further away from the magnetic control wheel 322. The wire-pulling motor 331 can move the magnets 330 closer to or further away from the rotating magnetic control wheel 322. The closer the distance, the stronger the magnetic field passing through the magnetic control wheel 322, the larger the eddy currents generated by cutting the magnetic field lines, and the greater the resistance; the farther the distance, the weaker the magnetic field, the smaller the eddy currents, and the smaller the resistance. The cooperative structure of the magnet 323 and the wire-pulling motor 331 can refer to existing technology.

[0049] In this embodiment, the mounting bracket 11 facilitates the assembly and fixation of the resistance module 3.

[0050] like Figure 4As shown, the inclined frame 1 in this embodiment has two sliding grooves 12 on the left and right sides; the left and right sides of the sliding grooves 12 are respectively provided with guide rails 121 spaced apart vertically; the left and right ends of the slide block 2 are respectively provided with two pulleys 22 spaced apart front and back, and the pulleys 22 slide between the upper and lower guide rails 121 to provide smooth sliding engagement.

[0051] In this embodiment, the slide block 2 is provided with four pulleys 22. Of course, in practice, two or six pulleys can also be provided. The guide rail 121 can be a round tube, a square tube, or an elliptical tube. In this embodiment, a round tube is used as an example. The pulleys 22 can be recessed with annular grooves that match the guide rail 121. Meanwhile, the guide rail 12 can be a steel pipe, an aluminum profile structure, etc.

[0052] In this embodiment, two sliding grooves 12 can be formed side by side between the front support 13 and the rear support 14. The height of the front support 13 is lower than that of the rear support 14. The front and rear ends of each guide rail 121 are respectively connected to the front support 13 and the rear support 14. A bottom cover 15 can also be provided between the left and right guide rails 121 of each sliding groove 12. The front and rear ends of the bottom cover 15 can be connected to the front support 13 and the rear support 14 respectively. The bottom cover 15 is used to cover the bottom surface of the slide block 2, and has the functions of safety protection and aesthetics.

[0053] A left cover 16 can be installed on the left side of the left guide rail 121 of the left slide 12, and a right cover 17 can be installed on the right side of the right guide rail 121 of the right slide 12. An upper cover 18 can be installed on the upper side of the guide rail 121 between the two slides 12, and a protective cover 19 can also be installed on the back of the resistance module 3.

[0054] like Figure 1 and Figure 2 As shown, the stepper structure in this embodiment also includes a support bracket 4 and a handrail bracket 5.

[0055] The support bracket 4 is foldable and unfoldable and is located below the inclined frame 1; the support bracket 4 can be hinged to the rear end of the inclined frame 1 at a preset angle so that the inclined frame 1 can maintain an upward tilt at the rear end.

[0056] The handrail bracket 5 is foldable and unfoldable and is located above the inclined frame 1; the handrail bracket 5 can be hinged to the rear end of the inclined frame 1 at a preset angle so that the user can hold it.

[0057] The slide 2 is equipped with a pedal 23, which can be tilted at the front and lowered at the back to be inclined to the top surface of the inclined frame 1, so that the pedal 23 can be kept roughly horizontal and convenient for the user to use with their feet.

[0058] In this embodiment, the hinges between the support bracket 4 and the handrail bracket 5 and the inclined frame 1 are all adjustable in angle. The specific hinge structure can be referred to in the prior art. This part is not the focus of this case, so it will not be described in detail.

[0059] Example 2

[0060] like Figure 7 and Figure 8 As shown, the structure of this embodiment is basically the same as that of the above embodiments, the main difference being that the structure of the slide transmission component 31 in this embodiment is different.

[0061] In this embodiment, the slide transmission component 31 consists of two pull ropes 312; a take-up reel 332 can be sleeved and fixed on the rotating shaft core 324 of the transmission disc 321, and the take-up reel 332 has two axially spaced take-up ring grooves 333; one end of the two pull ropes 312 can be wound and unwound respectively within the two take-up ring grooves 333, and the other end of the two pull ropes 312 is connected to the two slides 2 respectively.

[0062] Therefore, when the user exercises by stepping on the two slides 2, when the left slide 2 moves down, it pulls the left rope 312 to lengthen, causing the take-up reel 332 to rotate. At the same time, the take-up reel 332 winds up the right rope 312 and causes the right slide 2 to move up. When the right slide 2 moves down, it pulls the right rope 312 to lengthen, causing the take-up reel 332 to rotate in the opposite direction. At the same time, it winds up the left rope 312 and causes the left slide 2 to move up. This process is repeated. As the left and right slides 2 move up and down in sequence, the take-up reel 332 and the transmission disc 321 can be continuously driven to rotate back and forth. The rotation of the transmission disc 321 through the secondary transmission component 32 can increase the speed of the magnetic control wheel 322, making the resistance generated by the magnetic control eddy current device greater, which can provide corresponding resistance to the movement of the left and right slides 2.

[0063] The pull rope 312 in this embodiment takes steel wire rope as an example, and can have a good winding and unwinding effect.

[0064] Example 3

[0065] like Figure 9 and Figure 10 As shown, the structure of this embodiment is basically the same as that of the above embodiments, the main difference being that the structure of the slide transmission component 31 in this embodiment is different.

[0066] In this embodiment, the slide transmission component 31 is a belt 313; a pulley 334 is fixedly mounted on the rotating shaft core 324 of the transmission disk 321, and an adjusting wheel 335 is provided at one end of the inclined frame 1 away from the transmission disk 321 along the running direction of the slide 2; the belt 313 is driven around the pulley 334 and the adjusting wheel 335, and the two slides 2 are respectively connected to the two sides of the belt 313 located between the pulley 334 and the adjusting wheel 335.

[0067] Therefore, when the user exercises by stepping on the two sliding seats 2, Figure 9Taking the left slide 2 as an example, when the left slide 2 moves down, it will drive the belt 313 to rotate counterclockwise, which in turn will drive the pulley 334 to rotate counterclockwise, and at the same time drive the right slide 2 to move up; when the right slide 2 moves down, it will drive the belt 313 to rotate clockwise, which in turn will drive the pulley 334 to rotate clockwise, and at the same time drive the left slide 2 to move up; and so on. As the left and right slides 2 move up and down in sequence, the pulley 334 and the transmission disk 321 can be continuously driven to rotate back and forth. The rotation of the transmission disk 321 through the secondary transmission component 32 can increase the speed of the magnetic control wheel 322, so that the resistance generated by the magnetic control eddy current device is greater, which can provide corresponding resistance to the movement of the left and right slides 2.

[0068] In this embodiment, the belt 313 is a multi-wedge belt; the belt 313 can be locked and connected with the connecting piece 21 provided on the slide block 2 in conjunction with the clamping block 336.

[0069] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, equivalent changes and modifications without departing from the principle of this utility model should still fall within the protection scope of this utility model.

[0070] In the description of the embodiments of this application, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships commonly used when the product is in use, or the orientations or positional relationships commonly understood by those skilled in the art. These are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this application, "a plurality of" and "several" mean two or more, unless otherwise explicitly specified.

Claims

1. A stepper structure, comprising an inclined frame, two slides, and a resistance module; the two slides are reciprocally slidably mounted on the inclined frame, and the resistance module is mounted on the inclined frame to provide resistance to the sliding of the slides; characterized in that: The resistance module includes a slide transmission component and a secondary transmission assembly. The secondary transmission assembly includes a transmission disk, a magnetic control wheel, and a magnet. The slide transmission component is driven between two slides and the transmission disk of the secondary transmission assembly. The transmission disk and the magnetic control wheel are driven together. The magnetic control wheel and the magnet form a magnetically controlled eddy current device. The reciprocating movement of the two slides drives the slide transmission component to move, the movement of the slide transmission component drives the transmission disc to rotate, and the rotation of the transmission disc drives the magnetic control wheel to rotate.

2. The structure of a stepper machine according to claim 1, characterized in that: The sliding block transmission component is a chain; a sprocket is fixedly mounted on the rotating shaft of the transmission disc; the middle part of the chain is wound around the sprocket, and the two ends of the chain are respectively connected to two sliding blocks.

3. The structure of a stepper machine according to claim 1, characterized in that: The sliding block transmission component consists of two pull ropes; a winding reel is fixedly mounted on the rotating shaft of the transmission disc, and the winding reel has two axially spaced winding ring grooves; one end of each of the two pull ropes is wound and unwound in the two winding ring grooves, and the other end of each pull rope is connected to the two sliding blocks respectively.

4. The structure of a stepper machine according to claim 1, characterized in that: The sliding block transmission component is a belt; a pulley is fixedly fitted on the rotating shaft of the transmission disk, and an adjusting wheel is provided on the inclined frame at one end away from the transmission disk along the running direction of the sliding block; the belt drive is wound around the pulley and the adjusting wheel, and the two sliding blocks are respectively connected to the belt on both sides between the pulley and the adjusting wheel.

5. A stepper structure according to any one of claims 1-4, characterized in that: The slide transmission component and the secondary transmission assembly are located on the back of the inclined frame; the two slides are located on the front of the inclined frame and are respectively connected to the slide transmission component to the rear.

6. A stepper structure according to any one of claims 1-4, characterized in that: The transmission disc and the magnetic control wheel are arranged side by side and connected by a transmission belt; the transmission belt is wound around the outer peripheral wall of the transmission disc and the shaft of the magnetic control wheel.

7. The structure of a stepper machine according to claim 6, characterized in that: The upper end of the inclined frame is equipped with a mounting bracket; the transmission disc and the magnetic control wheel are rotatably arranged side by side in the mounting bracket; the mounting bracket is also equipped with a tensioning wheel that is adjustable to one side of the transmission belt; the magnet is located close to the outer peripheral wall of the magnetic control wheel; the magnet includes an arc-shaped magnet frame and several magnets installed on the inner arc wall of the magnet frame; one end of the magnet frame is hinged to the mounting bracket, and the other end is equipped with a pull-wire motor, which can be adjusted to move closer to or further away from the magnetic control wheel.

8. A stepper structure according to any one of claims 1-4, characterized in that: The inclined frame has two sliding grooves on the left and right sides; the left and right sides of the sliding grooves are respectively provided with guide rails spaced apart vertically; the left and right ends of the slide block are respectively provided with two pulleys spaced apart front and back, and the pulleys slide between the upper and lower guide rails.

9. The structure of a stepper machine according to claim 8, characterized in that: The guide rail is a round tube, square tube, or elliptical tube; the pulley is recessed with an annular groove that matches the guide rail.

10. The structure of a stepper machine according to claim 1, characterized in that: It also includes a support bracket and a handrail bracket; the support bracket is foldable and unfoldable and is located below the inclined frame; the support bracket is hinged to the rear end of the inclined frame at a preset angle so that the inclined frame can maintain an upward tilt at the rear end. The handrail bracket is foldable and unfoldable and is located above the inclined frame; the handrail bracket can be hinged to the rear end of the inclined frame at a preset angle for the user to hold onto. The slide is equipped with a pedal.