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CN-224220675-U - Stepping machine with adjustable arc-shaped movement track

CN224220675UCN 224220675 UCN224220675 UCN 224220675UCN-224220675-U

Abstract

The utility model provides a stepper with an adjustable arc-shaped movement track, which comprises a framework, two swinging pipes, two pedal pipes, two pedals, a resistance device, two cranks, two push rods, two sliding pipes and a movement track adjusting device. Through the connection relation of the components, the motion track of the pedal is arc-shaped. The motion track adjusting device is used for adjusting the path length and the inclination of the arc-shaped motion track.

Inventors

  • LIU SHIWEI

Assignees

  • 岱宇国际股份有限公司

Dates

Publication Date
20260512
Application Date
20250521

Claims (10)

  1. 1. A stepping machine, which comprises a stepping machine, characterized by comprising the following steps: the framework comprises a base and a main frame, wherein the base is positioned above the ground, and the main frame is positioned above the base; The two swinging pipes are respectively positioned at the left side and the right side of the main frame, the first end of each swinging pipe is pivoted with the main frame on a first shaft, and each swinging pipe is also provided with a handrail extending upwards from the first end of each swinging pipe for a user to hold; The first end of each pedal tube is pivoted with the second end of the corresponding swinging tube, and the inner side of each pedal tube is pivoted with a roller; two pedals corresponding to the two pedal tubes, each pedal being connected to the second end of the corresponding pedal tube; the resistance device is arranged on the main frame, comprises a rotating wheel to provide operation resistance and has a resistance axis; two cranks, are located on both sides of the resistance device separately, the first end of each crank is pin-jointed with the resistance axle center; The two push rods correspond to the two cranks and the two swinging pipes, each push rod is provided with a first end pivoted with a second end corresponding to the crank, and the second end of each push rod is pivoted with a second shaft corresponding to the swinging pipe; Two sliding tubes corresponding to the two pedal tubes, the first ends of the two sliding tubes being pivoted to the base, the roller of each pedal tube being slidably connected to the corresponding sliding tube, each pedal having an arcuate motion path, and The first end of the motion track adjusting device is pivoted with the base, the second end of the motion track adjusting device is pivoted with the second ends of the two sliding tubes, and the motion track adjusting device can adjust the linear length of the motion track adjusting device so as to change the path length of the arc-shaped motion track and the angle of the arc-shaped motion track relative to the base.
  2. 2. The stepping machine according to claim 1, wherein the movement trace adjusting means comprises a motor, a screw, and a sleeve having an internal thread engaging the screw, the motor being configured to drive the screw to rotate such that the sleeve moves in an axial direction of the screw.
  3. 3. The treadmill of claim 2, wherein one end of the screw is pivotally connected to the base of the frame, one end of the sleeve is pivotally connected to a cross bar, and the first ends of the two push rods are connected to the cross bar.
  4. 4. The treadmill of claim 3, wherein the second shaft is higher than the shaft of the sleeve pivotally connected to the cross bar.
  5. 5. A stepping machine, which comprises a stepping machine, characterized by comprising the following steps: the framework comprises a base and a main frame, wherein the base is positioned above the ground, and the main frame is positioned above the base; The two swinging pipes are respectively positioned at the left side and the right side of the main frame, the first end of each swinging pipe is pivoted with the main frame on a first shaft, and each swinging pipe is also provided with a handrail extending upwards from the first end of each swinging pipe for a user to hold; the first end of each lower swing pipe is pivoted with the second end corresponding to the swing pipe; The first end of each pedal tube is pivoted with the second end of the corresponding lower swinging tube, and the inner side of each pedal tube is pivoted with a roller; two pedals corresponding to the two pedal tubes, each pedal being connected to the second end of the corresponding pedal tube; The resistance device is arranged on the main frame, comprises a rotating wheel for providing operation resistance and is provided with a resistance axis; two cranks, are located on both sides of the resistance device separately, the first end of each crank is pin-jointed with the resistance axle center; The two push rods correspond to the two cranks, the two swinging pipes and the two lower swinging pipes, each push rod is provided with a first end which is pivoted with a second end corresponding to the crank, and the second end of each push rod is pivoted with the second end corresponding to the swinging pipe and the first end corresponding to the lower swinging pipe at a pivot; Two sliding tubes corresponding to the two pedal tubes, the first ends of the two sliding tubes being pivoted to the base, the roller of each pedal tube being slidably connected to the corresponding sliding tube, each pedal having an arcuate motion path, and The first end of the motion track adjusting device is pivoted with the base, the second end of the motion track adjusting device is movably connected with the second ends of the two sliding tubes, and the motion track adjusting device can adjust the linear length of the motion track adjusting device so as to change the path length of the arc-shaped motion track and the angle of the arc-shaped motion track relative to the base.
  6. 6. The stepping machine according to claim 5, wherein the movement track adjusting device comprises a motor, a screw, and a sleeve, the sleeve having an internal thread engaging the screw, the motor being configured to drive the screw to rotate such that the sleeve moves axially along the screw, wherein one end of the screw is pivotally connected to the base of the frame, one end of the sleeve is pivotally connected to a cross bar, and first ends of the two push bars are connected to the cross bar.
  7. 7. The treadmill of claim 5, wherein each of the lower swing tubes further comprises a swing travel limiting mechanism located between the pivot shaft and the lower swing tube to limit the pivoting angle of the lower swing tube.
  8. 8. The treadmill of claim 7, wherein the oscillation travel limiting mechanism comprises a cushion.
  9. 9. The treadmill of claim 7, wherein the swing stroke limiting mechanism comprises an oil pressure bar having a first end pivotally connected to a first connection structure of the pivot shaft and a second end pivotally connected to a second connection structure of the lower swing tube.
  10. 10. The treadmill of claim 7, wherein the swing travel limiting mechanism comprises a spring having a first end connected to a first connection structure connected to the pivot shaft and a second end connected to a second connection structure connected to the lower swing tube.

Description

Stepping machine with adjustable arc-shaped movement track Technical Field The utility model relates to a stepper with an adjustable arc-shaped movement track. Background The stepper is a sports apparatus, which can raise heart rate, burn calories and improve myocardial durability. In conventional stepper designs, a user stands on two pedals with a predetermined resistance, and the two pedals are alternately lifted by the application of force by the feet, and the steps act like continuously going up the stairs, thereby exercising the muscles of the legs and buttocks. The impact force of the treadmill on the legs is smaller than that of the treadmill, but care must be taken in use to avoid injury to the knees. Patent I587889B, entitled "exercise apparatus", discloses a treadmill with elliptical motion trajectories. The structure of the stepping machine is slightly complex. Reference is also made to prior art treadmills, patent I458519 entitled "Adjustable stepper", patent I442955 entitled "stepper", and patent M391978U1 entitled "Linear climbing machine", among other patent applications. Disclosure of utility model This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary and the prior art are not intended to identify key or essential aspects of the claimed subject matter. Furthermore, this summary is not intended to be used as an aid in determining the scope of the claimed subject matter. In one aspect of the utility model, a treadmill includes a frame, two swing tubes, two pedal tubes, two pedals, a resistance device, two cranks, two pushrods, two sliding tubes, and a motion profile adjustment device. The framework comprises a base and a main frame, wherein the base is positioned above the ground, and the main frame is positioned above the base. The two swing pipes are respectively positioned at the left side and the right side of the main frame, the first end of each swing pipe is pivoted with the main frame on the first shaft, and each swing pipe is also provided with an armrest extending upwards from the first end of each swing pipe for a user to hold. The two pedal pipes correspond to the two swinging pipes, the first end of each pedal pipe is pivoted with the second end of the corresponding swinging pipe, and the inner side of each pedal pipe is pivoted with a roller. The two pedals correspond to the two pedal pipes, and each pedal is connected with the second end of the corresponding pedal pipe. The resistance device is arranged on the main frame, comprises a rotating wheel to provide operation resistance and has a resistance axis. The two cranks are respectively positioned at two sides of the resistance device, and the first end of each crank is pivoted with the resistance axle center. The two push rods correspond to the two cranks and the two swinging pipes, each push rod is provided with a first end pivoted with a second end corresponding to the crank, and the second end of each push rod is pivoted with the corresponding swinging pipe on the second shaft. The two sliding pipes correspond to the two pedal pipes, the first ends of the two sliding pipes are pivoted with the base, the roller of each pedal pipe is connected with the corresponding sliding pipe in a sliding manner, and each pedal has an arc-shaped movement track. The first end of the motion track adjusting device is pivoted with the base, the second end of the motion track adjusting device is pivoted with the second ends of the two sliding tubes, and the linear length of the motion track adjusting device can be adjusted by the motion track adjusting device, so that the length of the arc-shaped motion track and the angle relative to the base are changed. In one embodiment of the present utility model, the movement trace adjusting device includes a motor, a screw, and a sleeve having an internal thread engaging the screw, the motor being configured to drive the screw to rotate such that the sleeve moves along an axial direction of the screw. In one embodiment of the present utility model, one end of the screw is pivoted to the base of the frame, one end of the sleeve is pivoted to the cross bar, and the first ends of the two push rods are connected to the cross bar. In one embodiment of the present utility model, the second shaft has a level higher than the level of the axis of the sleeve pivoted to the cross bar. In another aspect of the utility model, a treadmill includes a frame, two swing tubes, two lower swing tubes, two pedal tubes, two pedals, a resistance device, two cranks, two push rods, two sliding tubes, and a motion profile adjustment device. The difference with the stepper is that the stepper also has two lower swing pipes corresponding to the two swing pipes and the two pedal pipes. The first end of each lower swing pipe is pivoted with the second end of the corresponding swing pipe. The first end of each pedal tube is pivoted