Stair climbing machine

Abstract

A stair climbing machine comprises a machine frame and two sliding seats, the machine frame comprises two tracks arranged in an inclined mode, the two sliding seats are arranged on the two tracks in a sliding mode, pedals are arranged on the sliding seats, and the stair climbing machine is characterized by further comprising a transmission belt and a power device, one end of the transmission belt is connected to one sliding seat, and the other end of the transmission belt is connected to the other sliding seat. A guide assembly used for guiding the direction of the transmission belt is arranged on the rack, the transmission belt is guided by the guide assembly to enable the two sliding seats to asynchronously slide up and down along the two rails, and the power device is in transmission connection with the transmission belt and used for providing sliding resistance or assisting power for the sliding seats through the transmission belt.

Description

A stair climber Technical Field

[0001] This utility model relates to a stair-climbing machine. Background Technology

[0002] Chinese patent document CN103316453A discloses a climbing machine, characterized by comprising a column, a handrail, an inclined support, two foot pedals, and a step linkage mechanism fixed to the support. The column is inclined on the ground, the handrail is located at the upper end of the column, one end of the support is fixed to the middle of the column, and the other end is located on the ground. The support includes two parallel guide rails, and the two foot pedals are respectively mounted on the two guide rails and can slide along the length of the guide rails. The step linkage mechanism includes four pulleys and two steel cables. The four pulleys are respectively... Fixed to the bottom surfaces of both ends of two guide rails, two steel wire ropes pass over two pulleys at the top and two pulleys at the bottom of the two guide rails respectively. Connecting plates are respectively provided at both ends of the bottom of the foot pedals, and the two ends of the steel wire ropes are respectively fixedly connected to the two connecting plates on the two foot pedals near them. It can simulate mountain climbing or stair climbing, that is, the two feet step on the foot pedals to make asynchronous up and down stepping movements. In the above scheme, the two foot pedals are closely connected to the stepping linkage mechanism to achieve asynchronous movement; there is no assist structure to reduce the difficulty of exercise or a resistance structure to increase the difficulty of exercise, which cannot meet the needs of different exercise intensities. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a stair-climbing machine with adjustable exercise difficulty.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A stair-climbing machine includes a frame and two slides. The frame includes two inclined tracks, and the two slides are slidably mounted on the tracks. Foot pedals are provided on the slides. The machine is characterized by further including a transmission belt and a power unit. One end of the transmission belt is connected to one slide, and the other end is connected to the other slide. A guide assembly is provided on the frame to guide the transmission belt. The transmission belt, guided by the guide assembly, causes the two slides to slide asynchronously up and down along the two tracks. The power unit is connected to the transmission belt and provides sliding resistance or assistance to the slides via the transmission belt.

[0006] In the above scheme, the transmission belt guides the two slides to slide asynchronously up and down along the two tracks via the guide assembly. The power unit is connected to the transmission belt and provides resistance or assistance to the slides through the transmission belt. Providing assistance reduces the difficulty of the exercise, that is, controlling the power unit to drive the transmission belt to move in opposite directions, thereby making the alternating stepping motion of the exerciser's legs easier, or even fully driving the exerciser's alternating up and down movement of both legs; when the power unit is not working, the exercise difficulty is normal. Providing resistance increases the difficulty of the exercise, that is, by the power unit hindering the movement of the transmission belt, the exerciser must overcome this resistance to drive the two slides to slide asynchronously up and down, thereby increasing the difficulty of the exercise and improving the exercise effect.

[0007] The transmission belt is a synchronous belt with synchronous teeth on one side. The power unit includes a synchronous pulley for transmission connection with the synchronous belt. The synchronous pulley is rotatably mounted on the frame and meshes with the synchronous teeth of the synchronous belt. The synchronous pulley and the synchronous belt work together to achieve stable and reliable traction of the two slides and prevent transmission slippage and other problems.

[0008] The power unit also includes a motor, a first pulley, a second pulley, a belt, and a drive shaft. The drive shaft is rotatably mounted on the frame, and the synchronous pulley is fixedly mounted on the drive shaft. The first pulley is fixed on the drive shaft, and the second pulley is mounted on the output of the motor. The diameter of the first pulley is larger than the diameter of the second pulley. The belt is tensioned between the first pulley and the second pulley. During operation, the motor drives the second pulley to alternately rotate forward and reverse. The second pulley drives the drive shaft to rotate through the belt and the first pulley, ultimately driving the synchronous pulley to rotate forward and reverse. The forward and reverse rotation of the synchronous pulley can drive the synchronous belt to move in opposite directions, thereby pulling the two slides to slide asynchronously up and down.

[0009] The motor is an external rotor brushless motor, which can improve torque transmission efficiency and drive the second pulley to rotate more stably.

[0010] The guiding assembly includes two guide wheels, which are rotatably mounted on the frame and located on both sides of the synchronous pulley. The synchronous belt has synchronous teeth on its outer side. The two guide wheels are supported on the inner side of the synchronous belt. The synchronous pulley and the synchronous teeth on the outer side of the synchronous belt engage in transmission. Through the guidance of the two guide wheels, the synchronous pulley and the synchronous belt can be reliably engaged, and the two slides can be guided to slide asynchronously up and down.

[0011] The slide block is provided with a connecting mechanism for connecting the timing belt. The connecting mechanism includes a base plate and a pressure plate. The base plate is fixedly mounted on the slide block, and the pressure plate is locked to the base plate by fasteners. The end of the timing belt is clamped between the base plate and the pressure plate. The pressure plate is provided with fixing teeth that mesh with the timing teeth. This structure facilitates the connection of the timing belt.

[0012] It also includes a linkage rope connecting the two slides, which makes the asynchronous up-and-down movement of the two slides more stable and reliable.

[0013] The slide block is equipped with a guide wheel for guiding the direction of the linkage rope.

[0014] The power unit includes a magnetic powder brake that is driven by the transmission belt and is used to provide sliding resistance to the slide via the transmission belt.

[0015] The frame includes a crossbar and a mounting beam. The lower ends of the two rails are connected to the crossbar, and the mounting beam is connected between the upper ends of the two rails. The synchronous pulley is rotatably mounted on the mounting beam. The guide assembly includes two guide wheels, which are rotatably mounted on the mounting beam and located on both sides of the synchronous pulley. The two guide wheels are supported on the inner side of the synchronous belt, and the synchronous pulley is supported on the outer side of the synchronous belt and meshes with the synchronous teeth.

[0016] The guide component is used to guide both ends of the transmission belt to extend in a direction parallel to the track, thereby making the force transmission more reasonable and providing a better transmission effect. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Figure 1 is a perspective view of this utility model.

[0019] Figure 2 is a perspective view of this utility model from another angle.

[0020] Figure 3 is a schematic diagram of the connection between the transmission belt, power unit, guide assembly and two slides.

[0021] Figure 4 is a schematic diagram of the connection of the transmission belt, power unit, guide assembly and two slides from another perspective.

[0022] Figure 5 is a schematic diagram of the connection between the transmission belt, power unit, guide assembly and linkage rope.

[0023] Figure 6 is a schematic diagram of the connection of the transmission belt, power unit, guide assembly and linkage rope from another perspective.

[0024] Figure 7 is an exploded view of the power unit components. Detailed Implementation

[0025] Referring to Figures 1 to 7, a stair climbing machine includes a frame 1, two sliding seats 2, a transmission belt, and a power unit 6.

[0026] The frame 1 includes two rails 11, a support frame 15, a crossbar 12, a mounting beam 13, and a handrail 16. The two rails 11 are arranged in parallel and spaced apart and extend in an inclined direction. The lower ends of the two rails 11 are connected to the crossbar 12, which is supported on the ground. The upper ends of the two rails 11 are connected to the upper ends of the support frame 15, and the lower ends of the support frame 15 are supported on the ground, forming a herringbone support structure. The handrail 16 is set at the upper end of the support frame 15, and the mounting beam 13 is connected between the upper ends of the two rails 11.

[0027] Two slide blocks 2 are slidably mounted on two tracks 11. A foot pedal 3 is mounted on the slide block 2. Three rollers 21 are mounted on the slide block 2 and roll with the tracks 11. Two rollers 21 roll with the top surface of the tracks 11 and one roller 21 rolls with the bottom surface of the tracks 11. The foot pedal 3 is mounted on the slide block 2 at an adjustable angle via an adjusting bracket 31.

[0028] The transmission belt is a synchronous belt 4 with synchronous teeth on its outer surface. One end of the synchronous belt 4 is fixedly connected to a slide block 2, and the other end is fixedly connected to another slide block 2. Specifically, the synchronous belt 4 is connected to the slide block 2 through a connecting mechanism 41. The connecting mechanism 41 includes a base plate 411 and a pressure plate 412. The base plate 411 is welded and fixedly mounted on the slide block 2, and the pressure plate 412 is locked onto the base plate 411 by fasteners. The end of the synchronous belt 4 is clamped between the base plate 411 and the pressure plate 412. The pressure plate 412 is provided with fixing teeth 4121 that mesh with the synchronous teeth. Specifically, the fasteners are bolts 415 and nuts 416. The bolts 415 pass through the base plate 411 and the pressure plate 412 and are then locked and fixed by the nuts 416. The two slide blocks 2 slide asynchronously up and down along the track 11. The frame 1 is provided with a guide assembly to guide the synchronous belt 4. The guide assembly includes two guide wheels 42, which are rotatably mounted on the mounting beam 13. The inner side of the synchronous belt 4 is supported on the two guide wheels 42, so that the two ends of the synchronous belt 4 extend in the direction parallel to the track. A linkage rope 5 is connected between the two slide blocks 2. The slide block 2 is provided with a guide wheel 51 for guiding the linkage rope 5. The end of the linkage rope 5 is provided with a connector 52. The connector 52 is connected to the base plate 411 by fasteners. The specific fasteners include bolts 413 and nuts 414. The bolts 413 pass through the connector 52 and the base plate 411 and are locked and fixed with the nuts 414.

[0029] The power unit 6 includes a motor 64, a first pulley 62, a second pulley 642, a belt 63, a drive shaft 61, and a synchronous pulley 65. The two ends of the drive shaft 61 are rotatably mounted on the mounting beam 13 of the frame 1 via bearing seats 611. The synchronous pulley 65 is fixedly mounted on the drive shaft 61. Two guide wheels 42 are located on both sides of the synchronous pulley 65 and are supported on the inner side of the synchronous belt 4. The synchronous pulley 65 is supported on the outer side of the synchronous belt 4 and meshes with the synchronous teeth. The first pulley 62 is fixed on the drive shaft 61. The second pulley 642 is mounted on the output part of the motor 64. The diameter of the first pulley 62 is larger than the diameter of the second pulley 642. The belt 63 is tensioned between the first pulley 62 and the second pulley 642. Specifically, the motor 64 is an external rotor brushless motor. A motor mounting plate 14 is provided on the frame 1. The two ends of the shaft 641 of the motor 64 are fixedly mounted on the motor mounting plate 14. The second pulley 642 is mounted on the outer rotor of the motor 64.

[0030] During operation, motor 64 drives second pulley 642 to alternately rotate forward and reverse. Second pulley 642 drives transmission shaft 61 to rotate via first pulley 63, which in turn drives synchronous pulley 65 to rotate forward and reverse. The forward and reverse rotation of synchronous pulley 65 drives synchronous belt 4 to move in opposite directions, thus pulling the two slides 2 to slide asynchronously up and down. Power unit 6 is connected to transmission belt 4 and is used to provide sliding resistance or assistance to the slides through transmission belt 4. Providing assistance can reduce the difficulty of exercise, that is, controlling power unit to drive transmission belt 4 to move in opposite directions, thereby making the alternating stepping action of the exerciser's legs easier, or even completely driving the exerciser's alternating up and down movement of the legs. Providing resistance can increase the difficulty of exercise, that is, by power unit 6 hindering the movement of transmission belt 4, the exerciser must overcome this resistance to drive the two slides 2 to slide asynchronously up and down, thereby increasing the difficulty of exercise and improving the exercise effect. Resistance can also be provided by using a magnetic powder brake, which is connected to transmission belt 4 and is used to provide sliding resistance to the slides through transmission belt 4.

[0031] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be construed as limiting the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present utility model shall still fall within the scope of the patent of the present utility model.

Claims

1. A stair-climbing machine, comprising a frame and two sliding seats, the frame including two inclined rails, the two sliding seats being slidably mounted on the two rails, and foot pedals being provided on the sliding seats, characterized in that: It also includes a transmission belt and a power unit. One end of the transmission belt is connected to a slide and the other end is connected to another slide. The frame is equipped with a guide assembly for guiding the transmission belt. The transmission belt is guided by the guide assembly to make the two slides slide asynchronously up and down along the two tracks. The power unit is connected to the transmission belt and is used to provide sliding resistance or assistance to the slides through the transmission belt.

2. The stair-climbing machine according to claim 1, characterized in that: The transmission belt is a synchronous belt with synchronous teeth on one side, and the power unit includes a synchronous pulley for transmission connection with the synchronous belt. The synchronous pulley is rotatably mounted on the frame and meshes with the synchronous teeth of the synchronous belt.

3. A stair climber according to claim 2, wherein: The power unit also includes a motor, a first pulley, a second pulley, a belt, and a drive shaft. The drive shaft is rotatably mounted on the frame. The synchronous pulley is fixedly mounted on the drive shaft. The first pulley is fixed on the drive shaft. The second pulley is mounted on the output part of the motor. The diameter of the first pulley is larger than the diameter of the second pulley. The belt is tensioned between the first pulley and the second pulley.

4. A stair climber according to claim 3, wherein: The motor is an external rotor brushless motor.

5. A stair climber according to claim 2, wherein: The guiding assembly includes two guide wheels, which are rotatably mounted on the frame and located on both sides of the synchronous pulley. The synchronous belt has synchronous teeth on its outer side, and the two guide wheels are supported on the inner side of the synchronous belt. The synchronous pulley and the synchronous teeth on the outer side of the synchronous belt engage in transmission.

6. A stair-climbing machine according to claim 2, characterized in that: The slide block is provided with a connecting mechanism for connecting the timing belt. The connecting mechanism includes a base plate and a pressure plate. The base plate is fixedly mounted on the slide block, and the pressure plate is locked onto the base plate by fasteners. The end of the timing belt is clamped between the base plate and the pressure plate, and the pressure plate is provided with fixed teeth that mesh with the timing teeth.

7. A stair-climbing machine according to any one of claims 1 to 6, characterized in that: It also includes a linkage rope connecting the two slides.

8. A stair-climbing machine according to claim 7, characterized in that: The slide block is equipped with a guide wheel for guiding the direction of the linkage rope.

9. A stair-climbing machine according to claim 2, characterized in that: The power unit includes a magnetic powder brake that is driven by the transmission belt and is used to provide sliding resistance to the slide via the transmission belt.

10. A stair-climbing machine according to claim 2, characterized in that: The frame includes a crossbar and a mounting beam. The lower ends of the two rails are connected to the crossbar, and the mounting beam is connected between the upper ends of the two rails. The synchronous pulley is rotatably mounted on the mounting beam. The guide assembly includes two guide wheels, which are rotatably mounted on the mounting beam and located on both sides of the synchronous pulley. The two guide wheels are supported on the inner side of the synchronous belt, and the synchronous pulley is supported on the outer side of the synchronous belt and meshes with the synchronous teeth.

11. A stair climber according to any one of claims 1 to 6, characterized in that: The guide assembly is used to guide both ends of the transmission belt to extend in a direction parallel to the track.

Images