Stepping elliptical machine

Abstract

The invention relates to the field of fitness equipment, and discloses a stepping elliptical machine which comprises a main frame assembly, a crank, a resistance assembly, a pedal support, a pedal assembly, a swing arm and a switching mechanism. The upper end of the swing arm is rotationally connected with the main frame assembly, the lower end of the swing arm is rotationally connected with one end of the pedal support, and the other end of the pedal support is rotationally connected with the other end of the crank. The pedal assembly is connected with the pedal support, the switching mechanism is provided with a first end and a second end opposite to the first end, the first end of the switching mechanism is connected with the pedal assembly, the pedal assembly can swing up and down when the switching mechanism is connected with the main frame assembly, and the pedal assembly can move along the elliptical track when the switching mechanism is connected with the swing arm or the pedal support. A user can switch the stepping elliptical machine between the stepping machine mode and the elliptical machine mode only by operating the switching mechanism, the number of adjusting mechanisms needing to be operated by the user is small, operation is easy and convenient, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the field of fitness equipment, and in particular to a stepping elliptical machine. Background Art

[0002] Steppers and elliptical machines are two different types of fitness equipment. Steppers provide up and down stepping motion in place, while elliptical machines provide striding motion on an elliptical trajectory. The intensity, effect, and applicable population of steppers and elliptical machines are different. In order to achieve stepping motion and striding motion to provide a more comprehensive training effect, both steppers and elliptical machines can be configured at the same time. However, the two devices occupy a large area, and only stepping motion can be performed on the stepper, and only striding motion can be performed on the elliptical machine, which is inconvenient to use. The stepper elliptical machine can perfectly solve these problems. One device can provide stepping motion and striding motion, occupies a small area, and is easy to use.

[0003] Generally, the elliptical machine is equipped with an adjustment mechanism, by operating the adjustment mechanism, the elliptical machine can be switched between stepper mode and elliptical machine mode. When the elliptical machine is switched to stepper mode, the user can use the elliptical machine to perform stepping movements up and down on the ground. When the elliptical machine is switched to elliptical machine mode, the user can use the elliptical machine to perform striding movements on an elliptical trajectory.

[0004] However, currently, the stepping elliptical machine is equipped with many adjustment mechanisms. When the mode of the stepping elliptical machine needs to be switched, the user needs to operate many adjustment mechanisms, which is cumbersome and inconvenient to use. Summary of the invention

[0005] The disclosed embodiments are intended to provide a stepping elliptical machine to solve the technical problem in the prior art that a large number of adjustment mechanisms need to be operated when switching modes.

[0006] The embodiment of the present disclosure solves its technical problem by adopting the following technical solution: providing a stepping elliptical machine, including a main frame assembly, a crank, a resistance assembly, a pedal bracket, a pedal assembly, a swing arm and a switching mechanism;

[0007] One end of the crank is rotatably connected to the main frame assembly, the resistance assembly is connected to the crank, the upper end of the swing arm is rotatably connected to the main frame assembly, the lower end of the swing arm is rotatably connected to one end of the pedal bracket, and the other end of the pedal bracket is rotatably connected to the other end of the crank;

[0008] The pedal assembly is connected to the pedal bracket, and the adapter mechanism has a first end and an opposite second end. The first end of the adapter mechanism is connected to the pedal assembly, and the second end of the adapter mechanism has a first state connected to the main frame assembly and a second state connected to the swing arm or the pedal bracket. When the adapter mechanism is in the first state, the pedal assembly can swing up and down, and when the adapter mechanism is in the second state, the pedal assembly can move along an elliptical trajectory. When the adapter mechanism is connected to the swing arm in the second state, the connection between the adapter mechanism and the swing arm constitutes a first connection point, the connection between the pedal bracket and the swing arm constitutes a second connection point, and the connection between the pedal assembly and the pedal bracket constitutes a third connection point. The first connection point, the second connection point and the third connection point constitute a triangular structure, and the length of at least one side of the triangular structure is variable.

[0009] In some embodiments, in a first state where the second end of the adapter mechanism is connected to the main frame assembly, the second end of the adapter mechanism is rotatably connected to the main frame assembly, and in a second state where the second end of the adapter mechanism is connected to the swing arm or pedal bracket, at least one of the first connection point and the third connection point is a rotatable point.

[0010] In some embodiments, the pedal assembly is slidably connected to the pedal bracket, the first end of the adapter mechanism is rotatably connected to the pedal assembly, the second end of the adapter mechanism has a first state of being rotatably connected to the main frame assembly and a second state of being rotatably connected to the swing arm or the pedal bracket, when the adapter mechanism is in the first state, the pedal assembly can swing up and down, and when the adapter mechanism is in the second state, the pedal assembly can move along an elliptical trajectory.

[0011] In some embodiments, in the second state, the adapter mechanism is rotationally connected to the swing arm, and the pedal bracket and the swing arm are movably arranged along the main body direction of the swing arm.

[0012] In some embodiments, the swing arm includes a swing arm body, an adjustment frame and a locking piece; the upper end of the swing arm body is rotatably connected to the main frame assembly, the adjustment frame is movably connected to the lower end of the swing arm body, and the adjustment frame is rotatably connected to one end of the pedal bracket; the locking piece is used to lock the adjustment frame to the swing arm body, and when the locking piece is unlocked, the adjustment frame can move along the swing arm body.

[0013] In some embodiments, the adjustment frame includes a connecting sleeve and a connecting seat; at least two adjustment holes are provided at the lower end of the swing arm body, and the at least two adjustment holes are arranged along the swing arm body; the connecting sleeve is sleeved on the lower end of the swing arm body, and the locking piece is movably connected to the connecting sleeve, and the locking piece is used to extend into one of the at least two adjustment holes to lock the adjustment frame to the swing arm body, and when the locking piece withdraws from one of the at least two adjustment holes, the locking piece is unlocked; the connecting seat is provided on the connecting sleeve, and the connecting seat is rotatably connected to one end of the pedal bracket.

[0014] In some embodiments, the upper end of the swing arm and the main frame assembly have a connection point O at their rotational connection, the lower end of the swing arm and the pedal bracket have a connection point A at their rotational connection, and the adapter mechanism and the swing arm have a connection point B at their rotational connection, and the connection point B is farther away from the connection point O than the connection point A.

[0015] In some embodiments, the transfer mechanism includes a connecting rod and an adapter assembly, one end of the connecting rod is rotatably connected to the pedal assembly, and the other end of the connecting rod is rotatably connected to one end of the adapter assembly. In a first state, the other end of the adapter assembly is fixedly disposed on the main frame assembly. In the second state, the other end of the rotating assembly is fixedly disposed at the lower end of the swing arm. The connecting rod and the adapter assembly are rotatably connected at a connection point B.

[0016] In some embodiments, the adapter assembly includes an adapter bracket, a rocker arm, a hook and an elastic member; one end of the adapter bracket is movably connected to the other end of the connecting rod, one end of the rocker arm is arranged in the adapter bracket, the other end of the rocker arm extends out from the other end of the adapter bracket, the hook is arranged at the other end of the adapter bracket, and the elastic member is arranged between the adapter bracket and the rocker arm; the main frame assembly and the rocker arm each include a mounting portion, and the mounting portion has a first edge and a second edge relative to each other; the other end of the adapter bracket is used to insert into the mounting portion, the first edge is used to limit the axial insertion depth of the adapter bracket, and the elastic member is used to press the rocker arm against an inner side wall of the adapter bracket so that the hook at least partially extends radially toward the second edge.

[0017] In some embodiments, the adapter bracket includes a first bracket segment and a second bracket segment; the second bracket segment is used to be inserted into the mounting portion, the first bracket segment and the second bracket segment form a step structure, and the step structure is used to abut against the first edge.

[0018] In some embodiments, the adapter assembly includes a pressing portion; the pressing portion is disposed on a side of the rocker arm away from the elastic member, and the adapter bracket is provided with a pressing opening for exposing the pressing portion.

[0019] In some embodiments, the pedal assembly includes a pedal body, a pedal seat, a roller and a limiting wheel; the pedal body is connected to the pedal seat, the roller and the limiting wheel are rotatably connected to the pedal seat, and the roller and the limiting wheel clamp the pedal bracket; the adapter mechanism is rotatably connected to the pedal seat.

[0020] In some embodiments, the resistance assembly includes a resistance wheel and a transmission mechanism; the resistance wheel is rotatably connected to the main frame assembly and is connected to one end of the crank through the transmission mechanism.

[0021] In some embodiments, the main frame assembly includes a base, a vertical frame and a mounting frame; the resistance assembly includes a resistance wheel, a first pulley, a second pulley and a transmission belt; the upper end of the swing arm is rotatably connected to the vertical frame, and a first handle is provided at the upper end of the swing arm; the lower end of the vertical frame is connected to the base, and the upper end of the vertical frame is provided with the second handle, the mounting frame is provided on the base, one end of the crank is rotatably connected to the mounting frame, and the resistance assembly is provided on the mounting frame.

[0022] Compared with the prior art, the disclosed embodiment provides a stepping elliptical machine, when the adapter mechanism is rotated to connect the main frame assembly, the adapter mechanism is in a first state, the pedal assembly can move up and down, and the stepping elliptical machine is switched to the stepping machine mode, and when the adapter mechanism is rotated to connect the swing arm or the pedal bracket, the pedal assembly can move along an elliptical track, and the stepping elliptical machine is switched to the elliptical machine mode. Therefore, the user only needs to operate the adapter mechanism to switch the stepping elliptical machine between the stepping machine mode and the elliptical machine mode, the user needs to operate fewer adjustment mechanisms, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0024] Figure 1 is a structural schematic diagram of a stepping elliptical machine provided by one embodiment of the present disclosure, wherein the stepping elliptical machine is in a stepping machine mode;

[0025] Figure 2 yes Figure 1 The schematic diagram of the structure of the stepping elliptical machine shown is in another state, wherein the stepping elliptical machine is in the elliptical machine mode;

[0026] Figure 3 yes Figure 2 The schematic diagram of the structure of the stepping elliptical machine shown is at another angle;

[0027] Figure 4 yes Figure 1 The schematic diagram of the structure of the crank of the stepping elliptical machine shown;

[0028] Figure 5 yes Figure 1 The structural schematic diagram of the swing arm of the stepping elliptical machine shown;

[0029] Figure 6 yes Figure 1 The schematic diagram of the structure of the pedal bracket of the stepping elliptical machine shown;

[0030] Figure 7 yes Figure 1 The schematic diagram of the structure of the pedal assembly of the stepping elliptical machine shown;

[0031] Figure 8 yes Figure 1 The schematic diagram of the structure of the pedal assembly and the pedal bracket of the stepping elliptical machine shown;

[0032] Fig. 9 yes Figure 1 The schematic diagram of the structure of the adapter assembly and the connecting rod of the stepping elliptical machine shown;

[0033] Fig.10 yes Fig. 9 The schematic diagram of the disassembly of the adapter assembly of the stepping elliptical machine shown;

[0034] Fig.11 yes Fig. 9 The schematic diagram of the internal structure of the adapter assembly of the stepping elliptical machine shown;

[0035] Fig.12 yes Figure 1 The schematic diagram of the structure of the frame assembly, resistance assembly and crank of the stepping elliptical machine shown;

[0036] Fig.13 yes Fig.12 The schematic diagram of the structure of the frame assembly, resistance assembly and crank at another angle is shown. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of the present disclosure, the present disclosure is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on another element, or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying 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 disclosure. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0039] In the existing design, in order to switch the stepper elliptical machine between the stepper mode and the elliptical machine mode, the user usually needs to execute at least two adjustment mechanisms and change the state of each adjustment mechanism. In order to enable the user to easily switch the stepper elliptical machine between the stepper mode and the elliptical machine mode, the present invention reduces the adjustment mechanism to be executed to one. In order to achieve the switching between the stepper mode and the elliptical machine mode by executing or adjusting only one adjustment mechanism, the present invention cleverly sets a switching mechanism, which is connected to the pedal assembly 50. When the switching mechanism is connected to the main frame assembly 10, the user can achieve stepping motion; when the switching mechanism is connected to the pedal bracket 40 or the swing arm 30, the switching mechanism, the pedal assembly 50, the pedal bracket 40 and the swing arm 30 form a triangular structure. In order to achieve the normal operation of the elliptical mode, the inventor cleverly sets the triangular structure to be variable. The triangular structure changes its shape in real time to ensure that the pedal assembly 50 can perform elliptical trajectory motion normally.

[0040] Specifically, the embodiment of the present disclosure provides a stepping elliptical machine 100, including a main frame assembly 10, a crank 20, a resistance assembly 80, a pedal bracket 40, a pedal assembly 50, a swing arm 30 and a switching mechanism; wherein, one end of the crank 20 is rotatably connected to the main frame assembly 10, the resistance assembly 80 is connected to the crank 20, the upper end of the swing arm 30 is rotatably connected to the main frame assembly 10, the lower end of the swing arm 30 is rotatably connected to one end of the pedal bracket 40, and the other end of the pedal bracket 40 is rotatably connected to the other end of the crank 20.

[0041] The pedal assembly 50 is connected to the pedal bracket 40, and the adapter mechanism has a first end and an opposite second end. The first end of the adapter mechanism is connected to the pedal assembly 50, and the second end of the adapter mechanism has a first state of rotationally connecting with the main frame assembly 10 and a second state of connecting with the swing arm 30 or the pedal bracket 40. In the first state of the adapter mechanism, the pedal assembly 50 can swing up and down, and in the second state of the adapter mechanism, the pedal assembly 50 can move along an elliptical trajectory. The user can switch the stepping elliptical machine 100 between the stepping machine mode and the elliptical machine mode by only operating the connection position relationship of the adapter mechanism. The user needs to operate fewer adjustment mechanisms, and the operation is simple and convenient.

[0042] When the adapter is connected to the swing arm 30 in the second state, the connection between the adapter and the swing arm 30 constitutes a first connection point, the connection between the pedal bracket 40 and the swing arm 30 constitutes a second connection point, and the connection between the pedal assembly 50 and the pedal bracket 40 constitutes a third connection point. The first connection point, the second connection point and the third connection point constitute a triangular structure, and the length of at least one side of the triangular structure is variable. In this way, when the user uses the stepping elliptical machine, since the length of at least one side of the triangular structure is set to be variable, it can be ensured that when the adapter is in the second state, the device will not interfere, and the pedal assembly 50 can smoothly move along the elliptical trajectory. The triangular structure realizes real-time shape changes through variable side lengths to match the pedal assembly 50 and the pedal bracket 40 to smoothly complete the elliptical trajectory movement.

[0043] For example, in some embodiments, when the portion of the swing arm 30 between the first connection point and the second connection point is set to have a variable length, and at least one of the first connection point and the third connection point is set to be a rotation point, the shape of the triangular structure can change in real time when the user performs an elliptical trajectory motion, thereby ensuring that the pedal assembly 50 can move smoothly along the elliptical trajectory.

[0044] In some other embodiments, when the connecting mechanism between the first connection point and the third connection point is set to have a variable length, and at least one of the first connection point and the third connection point is set to be a rotation point, the shape of the triangular structure can also be changed in real time when the user performs elliptical trajectory motion, thereby ensuring that the pedal assembly 50 can move smoothly along the elliptical trajectory.

[0045] For example, in some other embodiments, the pedal assembly 50 is slidably connected to the pedal bracket 40 so that one side of the triangular structure is variable, and at least one of the first connection point and the third connection point is set as a rotation point. At this time, the shape of the triangular structure can also be changed in real time when the user performs an elliptical trajectory motion, thereby ensuring that the pedal assembly 50 can move smoothly along the elliptical trajectory.

[0046] It should be noted that the disclosure does not specifically limit the specific implementation or structure of the variable length. In order to achieve the variable length of at least one side of the triangular structure, the present invention can adaptively set any angle in the triangle as a variable angle, thereby allowing the user to smoothly complete the elliptical trajectory movement.

[0047] When the adapter mechanism is in the first state, the adapter mechanism is connected to the main frame assembly 10. In order to satisfy the up and down swinging of the pedal assembly 50, in some embodiments, the adapter mechanism is rotatably connected to the main frame assembly 10, so that the pedal assembly 50 can swing up and down around the rotation connection point between the adapter mechanism and the main frame assembly 10. In some other embodiments, the adapter mechanism is slidably connected to the main frame assembly 10, and the slidable connection can at least provide displacement of the pedal assembly 50 in the vertical direction, so that the pedal assembly 50 follows the adapter mechanism to move up and down relative to the main frame assembly 10, so that the user can complete the stepping motion.

[0048] For some examples, see Figures 1 to 3 A stepping elliptical machine 100 includes a main frame assembly 10, a crank 20, a swing arm 30, a pedal bracket 40, a pedal assembly 50, a switching mechanism and a resistance assembly 80. One end of the crank 20 is rotatably connected to the main frame assembly 10, and the resistance assembly 80 is connected to the crank 20. The upper end of the swing arm 30 is rotatably connected to the main frame assembly 10, the lower end of the swing arm 30 is rotatably connected to one end of the pedal bracket 40, and the other end of the pedal bracket 40 is connected to the other end of the crank 20. The pedal assembly 50 is slidably connected to the pedal bracket 40. The switching mechanism has a first end and a second end arranged opposite to the first end. The first end of the switching mechanism is rotatably connected to the pedal assembly 50, and the second end of the switching mechanism has a first state of being rotatably connected to the main frame assembly 10 and a second state of being rotatably connected to the swing arm 30 or the pedal bracket 40. When the switching mechanism is in the first state, the pedal assembly 50 can swing up and down, and when the switching mechanism is in the second state, the pedal assembly 50 can move along an elliptical trajectory.

[0049] When the user uses it, it is as follows:

[0050] The main frame assembly 10, the crank 20, the swing arm 30 and the pedal bracket 40 form a four-bar linkage. When the user swings the swing arm 30 or steps on the pedal assembly 50, the pedal bracket 40 can move along an elliptical trajectory.

[0051] like Figure 1As shown, when the user needs to perform stepping exercise training, the adapter mechanism is connected to the main frame assembly 10, the adapter mechanism is in the first state, and the stepping elliptical machine 100 switches to the stepper mode. When the user swings the swing arm 30 or steps on the pedal assembly 50, due to the rotation connection of the adapter mechanism to the main frame assembly 10, under the constraint of the adapter mechanism, the pedal assembly 50 will slide relative to the pedal bracket 40 and can only swing around a fulcrum, the fulcrum is located at the rotation connection between the adapter mechanism and the main frame assembly 10, and the movement mode of the pedal assembly 50 swinging around the fulcrum is adapted to the stepping movement of the human body; because the pedal assembly 50 is slidably connected to the pedal bracket 40, when the pedal assembly 50 swings up and down, the pedal bracket 40 and the pedal assembly 50 slide relative to each other, and the pedal assembly 50 does not need to follow the pedal bracket 40 to move along the elliptical trajectory. The pedal bracket 40 drives the crank 20 to rotate, and the resistance assembly 80 provides resistance to hinder the rotation of the crank 20, thereby realizing the user's stepping exercise training.

[0052] In some embodiments, the user applies force to the pedal bracket 40 through the pedal assembly 50 and the swing arm 30. The pedal assembly 50 is connected to the adapter mechanism. Under the constraint of the adapter mechanism, the pedal assembly 50 can only swing around the fulcrum, and the pedal bracket 40 swings around the connection between the pedal bracket 40 and the swing arm 30, thereby driving the crank 20 to rotate. The resistance assembly 80 provides resistance to hinder the rotation of the crank 20, thereby enabling the user to perform stepping exercise training.

[0053] like Figure 2 and Figure 3 As shown, when the user needs to perform stride exercise training, the adapter mechanism is rotationally connected to the swing arm 30 or the pedal bracket 40, and the stepping elliptical machine 100 is switched to the elliptical machine mode. The adapter mechanism is in the second state, and the diagram only shows the exemplary rotational connection between the adapter mechanism and the swing arm 30. When the user swings the swing arm 30 or steps on the pedal assembly 50, the pedal assembly 50 moves along an elliptical trajectory driven by the adapter mechanism or the pedal bracket 40 because the adapter mechanism is rotationally connected to the swing arm 30 or the pedal bracket 40, and the pedal bracket 40 drives the crank 20 to rotate, and the resistance assembly 80 provides resistance to hinder the rotation of the crank 20, thereby realizing the user's stride exercise training.

[0054] In some embodiments, the user applies force to the pedal bracket 40 through the pedal assembly 50 and the swing arm 30; the pedal assembly 50 is rotatably connected to the adapter mechanism, and the adapter mechanism is connected to the swing arm 30; when the swing arm 30 swings, the adapter mechanism drives the pedal assembly 50 to move along an elliptical trajectory; the pedal bracket 40 swings around the connection between the pedal bracket 40 and the swing arm 30, thereby driving the crank 20 to rotate, and the resistance assembly 80 provides resistance to hinder the rotation of the crank 20, thereby enabling the user to perform stride movement training.

[0055] Therefore, the user can switch the elliptical machine 100 between the stepper mode and the elliptical machine mode only by operating the connection position relationship of the switching mechanism. The user needs to operate fewer adjustment mechanisms, and the operation is simple and easy to use.

[0056] In some embodiments, when the adapter mechanism is rotatably connected to the swing arm 30 in the second state, when the pedal assembly 50 and the pedal bracket 40 move along the elliptical trajectory, the pedal assembly 50 and the pedal bracket 40 slide relative to each other. Along the body direction of the swing arm 30, the pedal bracket 40 and the swing arm 30 are movably arranged to adjust the relative displacement between the pedal assembly 50 and the pedal bracket 40, thereby adjusting the elliptical trajectory range of the pedal assembly 50.

[0057] In some embodiments, the adapter mechanism includes a connecting rod 60 and an adapter assembly 70. One end of the connecting rod 60 is rotatably connected to the pedal assembly 50, and the other end of the connecting rod 60 is rotatably connected to one end of the adapter assembly 70. When the adapter mechanism is in the first state, the other end of the adapter assembly 70 is connected to the main frame assembly 10. When the adapter mechanism is in the second state, the other end of the adapter assembly 70 is connected to the swing arm 30.

[0058] When the adapter assembly 70 is connected to the swing arm 30, the pedal bracket 40 moves along the first elliptical trajectory, wherein, when the crank 20 rotates to a horizontal position and away from the swing arm 30, the pedal bracket 40 rotates to one end of the long axis of the first elliptical trajectory; when the crank 20 rotates to a horizontal position and close to the swing arm 30, the pedal bracket 40 rotates to the other end of the long axis of the first elliptical trajectory. Assuming the crank length is L1, the long axis of the first elliptical trajectory is equal to 2L1. Assume that the connection point between the swing arm 30 and the main frame assembly 10 is O, the connection point between the pedal bracket 40 and the swing arm 30 is A, the connection point between the adapter assembly 70 and the connecting rod 60 is B, one end of the adapter assembly 70 is rotatably connected to the connecting rod 60, and the other end of the adapter assembly 70 away from the connecting rod 60 is connected to the swing arm 30; since the connection point A is closer to the connection point O than the connection point B, when the pedal bracket 40 moves, the swing distance of the connection point B is greater than the swing distance of the connection point A; within a complete swing cycle of the swing arm 30, the adapter assembly 70 and the connecting rod 60 push the pedal assembly 50 and the pedal bracket 40 to generate a relative displacement L2, and the pedal assembly 50 moves along the second elliptical trajectory, and the major axis K of the second elliptical trajectory is equal to 2L1+L2. Therefore, when the stepper mode is switched to the elliptical machine mode, by switching the adapter assembly 70 to be connected to the end of the swing arm 30, it is equivalent to increasing the length of the swing arm 30 acting on the pedal assembly 50, so that the major axis of the elliptical trajectory of the pedal assembly 50 is increased, thereby achieving the elliptical trajectory movement with a longer major axis using a shorter crank 20, which can reduce the overall size of the stepper elliptical machine 100 and achieve a better exercise experience while saving space.

[0059] It is understandable that in some other embodiments, when the adapter mechanism is in the second state, the adapter mechanism is connected to the pedal bracket 40, and when the pedal assembly 50 and the pedal bracket 40 move along the elliptical trajectory, the movement trajectory of the pedal assembly 50 is fixed and will not slip relative to the pedal bracket 40.

[0060] See also Figures 3 to 5 The stepping elliptical machine 100 includes two sets of pedal systems. Each set of pedal systems includes a set of cranks 20, a swing arm 30, a pedal bracket 40, a pedal assembly 50, a connecting rod 60 and an adapter assembly 70. The cranks 20 of the two sets of pedal systems extend in opposite directions, and one end of the cranks 20 of the two sets of pedal systems can be connected by a connecting shaft 22, and the axis of the connecting shaft 22 is perpendicular to the extension direction of any crank 20.

[0061] In this embodiment, one pedal system is taken as an example for description.

[0062] The other end of the crank 20 may be provided with a crank shaft 24. The axis of the crank shaft 24 is parallel to the connecting shaft 22, and the crank shaft 24 is used to rotatably connect the other end of the pedal bracket 40.

[0063] The swing arm 30 includes a swing arm body 32, an adjustment frame 34, a locking member 36, and a mounting portion 38. The upper end of the swing arm body 32 is rotatably connected to the main frame assembly 10, the adjustment frame 34 is movably connected to the lower end of the swing arm body 32, the adjustment frame 34 is rotatably connected to one end of the pedal bracket 40, and the mounting portion 38 is disposed at the lower end of the swing arm body 32, and the mounting portion 38 can be connected to the adapter assembly 70. The locking member 36 is used to lock the adjustment frame 34 to the swing arm body 32, and when the locking member 36 is unlocked, the adjustment frame 34 can move along the swing arm body 32.

[0064] When the adapter assembly 70 is connected to the swing arm 30, the distance L3 between the connection point A and the connection point B can be adjusted by adjusting the position of the adjustment frame 34 on the swing arm body 32, thereby changing the relative displacement L2 generated by the pedal assembly 50 and the pedal bracket 40, thereby controlling the major axis length K of the second elliptical trajectory, thereby facilitating the adjustment of the second elliptical trajectory. The larger L3 is, the larger K is, and the smaller L3 is, the smaller K is.

[0065] Specifically, when the adjustment frame 34 is adjusted to move closer to the connection point O along the direction of the swing arm body, the larger L3 is adjusted, the larger the relative displacement L2 that can be generated between the pedal assembly 50 and the pedal bracket 40 during a complete swing cycle of the swing arm 30, and the corresponding K is larger; when the adjustment frame 34 is adjusted to move away from the connection point O along the direction of the swing arm body, the smaller L3 is adjusted, the smaller the relative displacement L2 that can be generated between the pedal assembly 50 and the pedal bracket 40 during a complete swing cycle of the swing arm 30, and the corresponding K is smaller.

[0066] A first handle 39 is disposed at the upper end of the swing arm body 32. When the adapter assembly 70 is connected to the swing arm 30, the stepping elliptical machine 100 is in the elliptical machine mode, and the first handle 39 is used for the user to hold, which can facilitate the user to apply force.

[0067] A swing arm rotating sleeve 320 may be provided between the first handle 39 and the upper end of the swing arm body 32. The axis of the swing arm rotating sleeve 320 is parallel to the axis of the connecting shaft 22, and the swing arm rotating sleeve 320 is used to rotate and connect the main frame assembly 10.

[0068] In some embodiments, the adjustment frame 34 includes a connecting sleeve 340 and a connecting seat 342. At least two adjusting holes 322 are provided at the lower end of the swing arm body 32, and the at least two adjusting holes 322 are arranged along the swing arm body 32. The connecting sleeve 340 is sleeved on the lower end of the swing arm body 32, and the locking member 36 is movably connected to the connecting sleeve 340. The locking member 36 is used to extend into one of the at least two adjusting holes 322 to lock the adjustment frame 34 to the swing arm body 32, so that the connecting sleeve 340 and the connecting seat 342 cannot slide along the swing arm body 32. When the locking member 36 withdraws from one of the at least two adjusting holes 322, the locking member 36 is unlocked, and the connecting sleeve 340 and the connecting seat 342 can slide along the swing arm body 32. The connecting seat 342 is provided on the connecting sleeve 340, and the connecting seat 342 is rotatably connected to one end of the pedal bracket 40.

[0069] The operation is as follows:

[0070] When it is necessary to adjust the position of the adjustment frame 34 on the swing arm body 32, the locking piece 36 withdraws from the current adjustment hole 322. At this time, the locking piece 36 is unlocked, and the connecting sleeve 340 and the connecting seat 342 can move along the swing arm body 32. When it is necessary to increase the distance L3, the connecting sleeve 340 and the connecting seat 342 slide along the swing arm body 32 in a direction close to the connection point O; when it is necessary to reduce the distance L3, the connecting sleeve 340 and the connecting seat 342 slide along the swing arm body 32 in a direction away from the connection point O. When the locking piece 36 is aligned with a new adjustment hole 322, the connecting sleeve 340 and the connecting seat 342 stop sliding. When the locking piece 36 extends into the new adjustment hole 322, the locking piece 36 can re-lock the adjustment frame 34 to the swing arm body 32, thereby completing the operation of adjusting the position of the adjustment frame 34.

[0071] The locking member 36 includes a stud 360 and a handle 362. One end of the stud 360 is connected to the handle 362, and the stud 360 can be screwed in to extend into one of the at least two adjustment holes 322, or screwed out to exit one of the at least two adjustment holes 322. By rotating the handle 362, the stud 360 can be easily driven to screw in or out. The stud 360 has a self-locking function, which can prevent the stud 360 from being screwed out due to machine vibration, and has good reliability. In addition, the stud 360 has a simple structure and low cost.

[0072] The stud 360 can be specifically threadedly connected to the connecting sleeve 340 , and can also be threadedly connected to the adjusting hole 322 . In this case, the adjusting hole 322 is a threaded hole.

[0073] It is understandable that the locking member 36 is not limited to the stud, and according to actual needs, the locking member 36 can also be replaced by other structures, such as a latch, a reset pin, etc.

[0074] See also Figure 6 The pedal bracket 40 includes a pedal frame body 42 and a slide rail 44. One end of the pedal frame body 42 is rotatably connected to the lower end of the swing arm 30, and the other end of the pedal frame body 42 is rotatably connected to the other end of the crank 20. The slide rail 44 is disposed on the pedal frame body 42, and the pedal assembly 50 is slidably connected to the slide rail 44.

[0075] A first pedal frame rotating sleeve 420 may be provided at one end of the pedal frame body 42 , the axis of the first pedal frame rotating sleeve 420 is parallel to the axis of the connecting shaft 22 , and the first pedal frame rotating sleeve 420 may be connected to the connecting seat 342 through the rotation of the pedal frame.

[0076] A second pedal frame rotating sleeve 422 may be provided at the other end of the pedal frame body 42 . The axis of the second pedal frame rotating sleeve 422 coincides with the axis of the crank shaft 24 , and the second pedal frame rotating sleeve 422 is connected to the crank shaft 24 .

[0077] See also Figure 7 and Figure 8 The pedal assembly 50 includes a pedal body 52, a pedal seat 54, a roller 56 and a limiting wheel 58. The pedal body 52 is connected to the pedal seat 54, the roller 56 and the limiting wheel 58 are rotatably connected to the pedal seat 54, the roller 56 and the limiting wheel 58 clamp the pedal bracket 40, and the limiting wheel 58 and the roller 56 clamp the pedal bracket 40 to have a limiting function to prevent the pedal assembly 50 from being separated from the pedal bracket 40. The limiting wheel 58 and the roller 56 can rotate, and the axes of the limiting wheel 58 and the roller 56 are parallel to the axis of the connecting shaft 22. When the pedal assembly 50 and the pedal bracket 40 slide relative to each other, rolling friction can be generated, and the friction is small, so that the pedal assembly 50 and the pedal bracket 40 slide relative to each other more smoothly. The number of rollers 56 can be two groups, and the two groups of rollers 56 are against one side of the pedal bracket 40 together.

[0078] The roller 56 and the limiting wheel 58 clamp the slide rail 44. The slide rail 44 can be a flat plate structure. The flat plate structure is thin, so that the spacing between the roller 56 and the limiting wheel 58 is small, and the overall structure is compact.

[0079] See also Fig. 9 One end of the connecting rod 60 is rotatably connected to the pedal seat 54.

[0080] The connecting rod 60 includes a connecting rod body 62 and a universal joint 64. One end of the connecting rod body 62 is rotatably connected to the pedal assembly 50, and the other end of the connecting rod body 62 is rotatably connected to one end of the universal joint 64. The other end of the universal joint 64 is rotatably connected to one end of the adapter assembly 70. By arranging the universal joint 64 between the connecting rod body 62 and the adapter assembly 70, the universal joint 64 allows the adapter assembly 70 to rotate in any direction, and the adapter assembly 70 is more flexible and can be conveniently connected to the swing arm 30 or the mounting portion 38 of the main frame 10.

[0081] A connecting rod rotating sleeve 620 may be provided at one end of the connecting rod body 62. The axis of the connecting rod rotating sleeve 620 is parallel to the axis of the connecting shaft 22. The connecting rod rotating sleeve 620 may be connected to the pedal seat 54 via a first connecting rod rotating shaft 622. The first connecting rod rotating shaft 622 may be Figure 7 .

[0082] The other end of the connecting rod body 62 can be connected to one end of the universal joint 64 through the second connecting rod rotating shaft 624 .

[0083] See also Fig.10 and Fig.11 , the adapter assembly 70 includes an adapter bracket 72, a swing rod 74, a hook 76 and an elastic member 78. One end of the adapter bracket 72 is movably connected to the other end of the connecting rod 60, one end of the swing rod 74 is disposed in the adapter bracket 72 and rotatably connected to the adapter bracket 72, the other end of the swing rod 74 extends from the other end of the adapter bracket 72, the hook 76 is disposed at the other end of the adapter bracket 72, and the elastic member 78 is disposed between the adapter bracket 72 and the swing rod 74. The main frame assembly 10 and the swing arm 30 each include a mounting portion 38. The mounting portion 38 has a first edge 380 and a second edge 382 that are opposite to each other. The other end of the adapter bracket 72 is used to be inserted into the mounting portion 38 and abut against the first edge 380 of the mounting portion 38. The first edge 380 is used to limit the axial insertion depth of the adapter bracket 72. The elastic member 78 is used to press the rocker arm 74 toward an inner side wall of the adapter bracket 72 and abut against the inner side wall, so that the hook 76 radially extends toward the second edge 382 of the mounting portion 38. When the hook 76 abuts against the second edge 382, ​​the hook 76 can limit the adapter bracket 72 from falling out of the mounting portion 38.

[0084] The operation is as follows:

[0085] When the adapter assembly 70 needs to be connected to the mounting portion 38, the position of the rocker arm 74 is adjusted so that the hook 76 does not extend beyond the outer wall of the adapter bracket 72 to avoid interference when the adapter bracket 72 is inserted into the mounting portion 38. At this time, the elastic member 78 is compressed and the adapter bracket 72 is inserted into the mounting portion 38 until the adapter bracket 72 abuts against the first edge 380 of the mounting portion 38. The elastic member 78 recovers. During the recovery period, the elastic member 78 provides an elastic force that presses the rocker arm 74 toward an inner wall of the adapter bracket 72 so that the hook 76 extends beyond the outer wall of the adapter bracket 72 and the hook 76 abuts against the second edge 382 of the mounting portion 38. At this time, the adapter bracket 72 and the hook 76 clamp the mounting portion 38, and the adapter bracket 72 cannot be pulled out of the mounting portion 38.

[0086] When the adapter assembly 70 needs to be separated from the mounting portion 38 , the position of the swing rod 74 is adjusted so that the hook 76 does not exceed the outer wall of the adapter bracket 72 to avoid interference when the adapter bracket 72 is pulled out of the mounting portion 38 .

[0087] An adapter frame rotating sleeve 720 may be provided at one end of the adapter bracket 72. The adapter frame rotating sleeve 720 may be connected to the other end of the universal joint 64 via an adapter frame rotating shaft 722.

[0088] The adapter bracket 72 may specifically include a first bracket segment 724 and a second bracket segment 726. The second bracket segment 726 is used to be inserted into the mounting portion, the outer diameter of the first bracket segment 724 is greater than the outer diameter of the second bracket segment 726, and the first bracket segment 724 and the second bracket segment 726 form a step structure, which is used to abut against the first edge 380 of the mounting portion 38 to clamp the mounting portion with the hook 76.

[0089] A swing rod rotating sleeve 740 may be provided at one end of the swing rod 74 , and the swing rod rotating sleeve 740 may be connected to the adapter bracket 72 via a swing rod rotating shaft 742 .

[0090] The adapter assembly 70 may include a pressing portion 79. The pressing portion 79 is disposed on a side of the swing rod 74 away from the elastic member 78, and the adapter bracket 72 is provided with a pressing opening 728 for exposing the pressing portion 79. The pressing portion 79 can facilitate the user to press down the swing rod 74 so that the hook 76 does not exceed the outer wall of the adapter bracket 72.

[0091] See also Fig.12 The resistance assembly 80 includes a resistance wheel 82 and a transmission mechanism. The resistance wheel 82 is rotatably connected to the main frame assembly 10, and is connected to the connecting shaft 22 through the transmission mechanism to connect to one end of the crank 20. When the crank 20 rotates, the resistance wheel 82 can be driven to rotate through the transmission mechanism, so that the resistance wheel 82 provides resistance to the crank 20. The resistance wheel 82 can be a magnetically controlled wheel, a motor, etc., to provide training resistance for the stepping elliptical machine 100.

[0092] The transmission mechanism includes a first pulley 84, a second pulley 86 and a transmission belt 88. The first pulley 84 is coaxially fixed to the resistance wheel 82, the crank extends radially along the second pulley 86, the second pulley 86 is coaxially fixed to the connecting shaft 22 to be fixed to one end of the crank 20, and the transmission belt 88 connects the first pulley 84 and the second pulley 86.

[0093] It is understandable that the transmission mechanism is not limited to the form of a pulley mechanism, and according to actual needs, the transmission mechanism may include a driving gear and a driven gear. The driving gear is coaxially fixed to the connecting shaft 22 to be fixed to one end of the crank 20, and the driven gear is coaxially fixed to the resistance wheel 82, and the driving gear and the driven gear are meshed.

[0094] It is understandable that, according to actual needs, the transmission mechanism can be omitted. In some other embodiments, the resistance assembly 80 includes a resistance wheel 82, and the resistance wheel 82 is coaxially fixed to the connecting shaft 22 to be fixed to one end of the crank 20.

[0095] See also Fig.13 The main frame assembly 10 includes a base 12, a mounting portion 38, a stand 14 and a mounting frame 16. The stand 14 extends in a vertical direction, the lower end of the stand 14 is connected to the base 12, the upper end of the stand 14 is provided with a second handle 18, and the mounting frame 16 is provided on the base 12. The connecting shaft 22 is connected to the mounting frame 16 to realize that one end of the crank 20 is rotatably connected to the main frame assembly 10. The resistance assembly 80 is provided on the mounting frame 16. The upper end of the swing arm 30 is rotatably connected to the stand 14. The swing arm rotating sleeve 320 can be connected to the stand 14 through the swing arm rotating shaft 324.

[0096] When the adapter assembly 70 is connected to the main frame assembly 10, the pedal elliptical machine 100 is in the stepper mode, and the second handle 18 is used for the user to hold so that the user can apply force.

[0097] The base 12 includes two cross beams 120 and a longitudinal beam 122. The two cross beams 120 are opposite to each other, and the longitudinal beam 122 is connected between the two cross beams 120 to form an "I"-shaped structure. A foot pad 124 is provided at the end 120 of each cross beam for contacting the ground to support the main frame assembly 10. The vertical frame 12 is close to one of the cross beams 120, and the mounting frame 16 is close to the other cross beam 120. The mounting portion 38 of the main frame assembly 10 is provided on the cross beam 120 close to the vertical frame 12.

[0098] Compared with the prior art, the embodiment of the present disclosure provides a stepping elliptical machine 100. When the adapter mechanism is rotatably connected to the main frame assembly 10, the adapter mechanism is in a first state, the pedal assembly 50 can move up and down, and the stepping elliptical machine 100 is switched to the stepping machine mode. When the adapter mechanism is rotatably connected to the swing arm 30 or the pedal bracket 40, the pedal assembly 50 can move along an elliptical track, and the stepping elliptical machine 100 is switched to the elliptical machine mode. Therefore, the user only needs to operate the adapter mechanism to switch the stepping elliptical machine 100 between the stepping machine mode and the elliptical machine mode. The user needs to operate fewer adjustment mechanisms, and the operation is simple and convenient.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Under the concept of the present disclosure, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present disclosure as described above, which are not provided in detail for the sake of simplicity. Although the present disclosure is described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, 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 disclosure.

Claims

1. A stepping elliptical machine, characterized in that: It includes a main frame assembly, a crank, a resistance assembly, a pedal bracket, a pedal assembly, a swing arm and a transfer mechanism; One end of the crank is rotatably connected to the main frame assembly, the resistance assembly is connected to the crank, the upper end of the swing arm is rotatably connected to the main frame assembly, the lower end of the swing arm is rotatably connected to one end of the pedal bracket, and the other end of the pedal bracket is rotatably connected to the other end of the crank; The pedal assembly is connected to the pedal bracket, and the adapter mechanism has a first end and an opposite second end. The first end of the adapter mechanism is connected to the pedal assembly, and the second end of the adapter mechanism has a first state connected to the main frame assembly and a second state connected to the swing arm or the pedal bracket. When the adapter mechanism is in the first state, the pedal assembly can swing up and down, and when the adapter mechanism is in the second state, the pedal assembly can move along an elliptical trajectory. When the adapter mechanism is connected to the swing arm in the second state, the connection between the adapter mechanism and the swing arm constitutes a first connection point, the connection between the pedal bracket and the swing arm constitutes a second connection point, and the connection between the pedal assembly and the pedal bracket constitutes a third connection point. The first connection point, the second connection point and the third connection point constitute a triangular structure, and the length of at least one side of the triangular structure is variable.

2. The stepping elliptical machine according to claim 1, characterized in that: In a first state in which the second end of the adapter mechanism is connected to the main frame assembly, the second end of the adapter mechanism is rotatably connected to the main frame assembly, and in a second state in which the second end of the adapter mechanism is connected to the swing arm or the pedal bracket, at least one of the first connection point and the third connection point is a rotatable point.

3. The stepping elliptical machine according to claim 1 or 2, characterized in that: The pedal assembly is slidably connected to the pedal bracket, and the first end of the adapter mechanism is rotationally connected to the pedal assembly. When the adapter mechanism is in a first state, the pedal assembly can swing up and down. When the adapter mechanism is in a second state, the pedal assembly can move along an elliptical trajectory.

4. The stepping elliptical machine according to claim 3, characterized in that: In the second state, the adapter mechanism is rotationally connected to the swing arm, and the pedal bracket and the swing arm are movably arranged along the main body direction of the swing arm.

5. The stepping elliptical machine according to claim 4, characterized in that: The swing arm comprises a swing arm body, an adjustment frame and a locking member; The upper end of the swing arm body is rotatably connected to the main frame assembly, the adjustment frame is movably connected to the lower end of the swing arm body, and the adjustment frame is rotatably connected to one end of the pedal bracket; The locking member is used to lock the adjustment frame to the swing arm body. When the locking member is unlocked, the adjustment frame can move along the swing arm body.

6. The stepping elliptical machine according to claim 5, characterized in that: The adjustment frame includes a connecting sleeve and a connecting seat; At least two adjustment holes are provided at the lower end of the swing arm body, and the at least two adjustment holes are arranged along the swing arm body; The connecting sleeve is sleeved on the lower end of the swing arm body, the locking piece is movably connected to the connecting sleeve, the locking piece is used to extend into one of the at least two adjustment holes to lock the adjustment frame to the swing arm body, and when the locking piece exits one of the at least two adjustment holes, the locking piece is unlocked; The connecting seat is arranged on the connecting sleeve, and the connecting seat is rotatably connected to one end of the pedal bracket.

7. The stepping elliptical machine according to claim 1 or 2, characterized in that: The upper end of the swing arm and the main frame assembly are rotatably connected at a connection point O, the lower end of the swing arm and the pedal bracket are rotatably connected at a connection point A, and the adapter mechanism and the swing arm are rotatably connected at a connection point B, and the connection point B is farther away from the connection point O than the connection point A.

8. The stepping elliptical machine according to claim 7, characterized in that: The transfer mechanism includes a connecting rod and a transfer assembly, one end of the connecting rod is rotatably connected to the pedal assembly, and the other end of the connecting rod is rotatably connected to one end of the transfer assembly. In the first state, the other end of the transfer assembly is fixedly disposed on the main frame assembly. In the second state, the other end of the rotating assembly is fixedly disposed at the lower end of the swing arm. The connection point B is provided at the rotational connection between the connecting rod and the transfer assembly.

9. The stepping elliptical machine according to claim 8, characterized in that: The adapter assembly includes an adapter bracket, a swing rod, a hook and an elastic member; One end of the adapter bracket is movably connected to the other end of the connecting rod, one end of the swing rod is arranged in the adapter bracket, the other end of the swing rod extends from the other end of the adapter bracket, the hook is arranged at the other end of the adapter bracket, and the elastic member is arranged between the adapter bracket and the swing rod; The main frame assembly and the swing arm each include a mounting portion, the mounting portion having a first edge and a second edge opposite to each other; The other end of the adapter bracket is used to insert into the mounting portion, the first edge is used to limit the axial insertion depth of the adapter bracket, and the elastic member is used to press the rocker arm toward an inner side wall of the adapter bracket so that the hook at least partially extends radially toward the second edge.

10. The stepping elliptical machine according to claim 9, characterized in that: The adapter bracket includes a first bracket segment and a second bracket segment; The second bracket segment is used to be inserted into the mounting portion, and the first bracket segment and the second bracket segment form a step structure, and the step structure is used to abut against the first edge.

11. The stepping elliptical machine according to claim 9, characterized in that: The adapter assembly includes a pressing portion; The pressing portion is arranged on a side of the swing rod away from the elastic member, and the adapter bracket is provided with a pressing opening for exposing the pressing portion.

12. The stepping elliptical machine according to claim 3, characterized in that: The pedal assembly includes a pedal body, a pedal seat, a roller and a limiting wheel; The pedal body is connected to the pedal seat, the roller and the limiting wheel are rotatably connected to the pedal seat, and the roller and the limiting wheel clamp the pedal bracket; The adapter mechanism is rotatably connected to the pedal seat.

13. The stepping elliptical machine according to claim 1 or 2, characterized in that: The resistance assembly includes a resistance wheel and a transmission mechanism; The resistance wheel is rotatably connected to the main frame assembly and is connected to one end of the crank through the transmission mechanism.

14. The stepping elliptical machine according to claim 1 or 2, characterized in that: The main frame assembly includes a base, a stand and a mounting frame; The upper end of the swing arm is rotatably connected to the stand, and a first handle is provided on the upper end of the swing arm; The lower end of the stand is connected to the base, the upper end of the stand is provided with the second handle, the mounting frame is provided on the base, one end of the crank is rotatably connected to the mounting frame, and the resistance assembly is provided on the mounting frame.

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