Stair climbing machine capable of moving freely

Abstract

The utility model belongs to the technical field of fitness equipment, and particularly relates to a stair climbing machine capable of moving freely. A stair climbing machine capable of moving freely comprises a main frame provided with two rails which are arranged in parallel in a spaced mode; the pedals are arranged on the rails in a sliding fit manner and are respectively connected with pull ropes; the two take-up devices are rotationally connected to the main frame, one end of the pull rope is wound around the two take-up devices, the other end of the pull rope is fixed to the main frame, and the take-up devices are matched with coil springs for resetting the pedal; the damping wheel is rotationally connected with the main frame, the damping wheel is in coupling connection with the take-up devices, rotation of the two take-up devices is not interfered, and the damping wheel is used for enabling resistance to exist when the pedal is treaded; the transmission wheel is arranged at one end of the take-up device and used for transmitting force generated when the pedal is treaded to the damping wheel so that the damping wheel can rotate. The utility model has the advantage that the two pedals do not interfere with each other during use so as to achieve the purpose that two legs can be independently and freely exercised.

Description

TECHNICAL FIELD

[0001] The utility model belongs to body -building equipment technical field, especially relate to a stair climbing machine. BACKGROUND

[0002] Stair climbing machine is also called stair machine, which is a body -building product after the appearance of self -running machine, its main principle is that the body -building person uses the feet to move back and forth alternately on the machine with large slope, simulates outdoor mountaineering and achieves the purpose of body -building.

[0003] For example, the Chinese patent with the application number 202410730183.6 discloses a magnetic control stair machine, and the pedal slides on the fixed track. During use, because the pedal is fixed to the same belt / soft rope, when one side pedal moves downward, the other side pedal can only move in the opposite direction by the belt / pulley, and the movement speed is the same, which cannot achieve the purpose of free exercise of two legs. UTILITY MODEL CONTENT

[0004] In order to solve the problems in the prior art, the utility model provides a stair climbing machine which can achieve the purpose of independent and free exercise of two legs without interference between the two pedals during use.

[0005] The utility model adopts the following technical scheme to be realized: a stair climbing machine capable of free movement, comprising:

[0006] A main frame is provided with two parallel and spaced tracks;

[0007] A pedal is slidably arranged on the track and connected with a pulley respectively;

[0008] Two take-up devices are rotationally connected to the main frame, one end of the pulley is wound around the two take-up devices respectively, the other end is fixed to the main frame, and the take-up device is matched with a coil spring for resetting the pedal;

[0009] A damping wheel is rotationally connected to the main frame, the damping wheel is coupled to the take-up device and does not interfere with the rotation of the two take-up devices, and the damping wheel is used to provide resistance when the pedal is stepped on; and

[0010] A transmission wheel is arranged at one end of the take-up device and used to transmit the force of the pedal when stepped on to the damping wheel to rotate the damping wheel.

[0011] During use, when the user steps on the pedal, the pedal will pull the pulley to rotate the take-up device in the positive direction, the positive rotation of the take-up device can drive the transmission wheel to rotate in the positive direction, and the rotation of the transmission wheel drives the damping wheel to rotate in the positive direction. At this time, the damping wheel will generate Lorentz force under the action of the magnet, which will cause the pedal to be subjected to resistance when stepped on.

[0012] The method for coupling the take-up device and the damping wheel to realize the rotation of the two take-up devices without interference is that two damping wheels corresponding to the take-up devices are directly arranged, so that the rotation between the two take-up devices is independent and will not interfere with each other. One damping wheel can be arranged through the existing one-way bearing part to realize the independent rotation between the two take-up devices without interference. The one-way bearing can be arranged on the damping wheel or between the take-up device and the transmission wheel.

[0013] The relationship between the transmission wheel and the damping wheel can be realized through the meshing of a belt, a toothed chain, a chain or a gear.

[0014] The damping wheel can be any existing damping wheel for fitness or exercise equipment, and the principle involves electromagnetic induction and Lorentz force.

[0015] The cooperation of the damping wheel and the magnet realizes that the pedal will be subjected to resistance when being stepped on, so as to achieve the exercise effect. Meanwhile, the rotation between the two take-up devices is independent, so that the pedal on one side will not be interfered when the pedal on the other side moves downward, so as to achieve the purpose of free exercise of both legs, achieve the technical effect of free exercise, and even the pedals on both sides can be stepped down at the same time.

[0016] As a preferred, the damping wheel is matched with a resistance adjusting device, and the resistance adjusting device can control the resistance value of the damping wheel.

[0017] The resistance value of the damping wheel is adjusted through the resistance adjusting device, so as to change the rotation force value of the take-up device and the stepping force value of the pedal.

[0018] As a preferred, the resistance adjusting device is arranged on the main frame, and includes an adjusting part, a fixed block and a plurality of magnets fixed on the fixed block. The adjusting part can adjust the position of the fixed block relative to the damping wheel, so as to change the area of the plurality of magnets covering the damping wheel.

[0019] The position of the fixed block is changed to change the area of the plurality of magnets covering the damping wheel, so as to adjust the resistance value of the damping wheel, and change the rotation force value of the take-up device and the stepping force value of the pedal.

[0020] As a preferred, the main frame is further provided with a generator, the transmission wheel or the damping wheel is in transmission connection with the generator to realize the power generation of the generator, the resistance adjusting device is an electric magnetic control device, and the generator supplies power to the electric magnetic control device.

[0021] The rotation of the transmission wheel or the damping wheel drives the generator to generate electricity, and the electricity generated by the generator acts on the resistance adjusting device, so that the resistance adjusting device does not need to be connected to other power sources. The electromagnetism control device is any device that cooperates with the damping wheel to realize electric resistance adjustment.

[0022] As a preferred, the main frame is folded with a sub-frame, and the sub-frame can support the whole stair climbing machine when the main frame is unfolded.

[0023] The sub-frame and the main frame are folded together, so that the stair climbing machine can be used when unfolded and stored when folded.

[0024] As a preferred, the upper end of the main frame is rotatably connected with a handrail on both sides, and a connecting rod is arranged between the handrail and the sub-frame, and the two ends of the connecting rod are rotatably connected with the handrail and the sub-frame respectively.

[0025] The handrail can be easily gripped by the user when using the stair climbing machine, and the connecting rod is connected between the handrail and the sub-frame, so that when the sub-frame is unfolded, the handrail is just in a position that can be gripped by a person, and when the sub-frame is folded, the handrail can also be folded, and the sub-frame and the handrail have a good linkage effect.

[0026] As a preferred, a pedal locking switch is arranged between the two adjacent tracks, and the pedal locking switch comprises a knob, a left rotating piece and a right rotating piece; the knob and the left rotating piece and the right rotating piece have a linkage structure, when the knob is screwed, the left rotating piece and the right rotating piece can respectively extend into the track to limit the movement of the pedal or retract from the track to release the limitation of the pedal.

[0027] The pedal locking switch is used to lock or unlock the movement of the pedal. The linkage structure can be the cooperation of gear and rack, the cooperation of connecting rod structure, the cooperation of cam and spring structure, etc.

[0028] As a preferred, the take-up device and the transmission wheel are connected through a one-way bearing, the number of the damping wheel is one, and the two transmission wheels and the damping wheel are connected through the same belt; or the take-up device and the transmission wheel are connected through a one-way bearing, the number of the damping wheel is one, and the two transmission wheels and the damping wheel are connected through two belts respectively.

[0029] By setting the one-way bearing between the take-up reel and the transmission wheel, when one pedal is stepped on, the take-up reel rotates, the rotation of the take-up reel is transmitted to the transmission wheel through the one-way bearing, the transmission wheel drives the damping wheel to rotate, since the two transmission wheels and the damping wheel are connected through the same belt or two belts, the other damping wheel drives the other transmission wheel to rotate, but since the other take-up reel is also matched with the one-way bearing, the rotation of the other transmission wheel cannot drive the other take-up reel to rotate, so that the two take-up reels do not interfere with each other; meanwhile, when the take-up reel is reset under the action of the coil spring, since it is the one-way bearing, the reverse rotation of the take-up reel cannot drive the transmission wheel to rotate.

[0030] Preferably, the number of the damping wheels is one, the two transmission wheels and the damping wheel are connected through two belts, the axial ends of the damping wheel are provided with one-way bearings, and the one-way bearings are connected with the transmission connection ends of the belts and the damping wheel respectively.

[0031] By setting the one-way bearings at the axial ends of the damping wheel and connecting the two belts with the one-way bearings respectively, when one pedal is stepped on to make the take-up reel rotate, the rotation of the take-up reel can be transmitted to the damping wheel through the one-way bearings, but the rotation of the damping wheel cannot affect the rotation of the other take-up reel and cannot transmit the torque to the other take-up reel, so that the two take-up reels are independent of each other; and when the take-up reel is reset, the transmission wheel rotates reversely, but the one-way bearings cannot drive the damping wheel to rotate.

[0032] Preferably, the number of the damping wheels is two, and the damping wheels are connected with the transmission wheels through belts respectively.

[0033] By setting two damping wheels, the damping wheels correspond to the take-up reels and the transmission wheels one by one, so that the two pedals do not interfere with each other.

[0034] Compared with the prior art, the utility model has the advantages that the two pedals do not interfere with each other, so that the two legs are free to exercise; the damping wheels and the magnets can be matched to generate resistance to the pedals, and the resistance can be adjusted; and the whole stair climbing machine can be folded and the pedals can be locked. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a side view of the utility model;

[0036] Figure 2 It is a front view of the utility model;

[0037] Figure 3 It is a front view of the utility model; Figure 1 It is a structure schematic view after folding;

[0038] Figure 4 Structure diagram of the main frame removed;

[0039] Figure 5 Enlarged view of the pedal locking switch;

[0040] Figure 6 Exploded view of the pedal locking switch;

[0041] Figure 7 Structure diagram of the take-up device and the damping wheel;

[0042] Figure 8 Another perspective structure diagram of the take-up device and the damping wheel;

[0043] Figure 9 Bottom view of the take-up device and the damping wheel after removing the fixing block;

[0044] Figure 10 Sectional view of the take-up device;

[0045] Figure 11 Structure diagram of Example 2;

[0046] Figure 12 Sectional view of the take-up device of Example 2;

[0047] Figure 13 Sectional view of the damping wheel of Example 2.

[0048] Reference numerals: 1, main frame; 11, track; 12, pedal; 121, pull rope; 122, pulley; 123, roller; 13, handrail; 14, knob; 15, right rotating piece; 16, left rotating piece; 17, limiting ring; 2, auxiliary frame; 21, connecting rod; 3, take-up device; 31, coil spring; 4, damping wheel; 41, transmission connection end of the belt and the damping wheel; 5, generator; 6, fixing block; 61, connecting frame; 62, positioning frame; 63, magnet; 7, transmission wheel; 71, belt; 8, one-way bearing; 81, inner ring; 82, outer ring; 9, main shaft; 91, shaft sleeve; 100, upper cover; 200, lower cover. DETAILED DESCRIPTION

[0049] The utility model will be further described below according to the drawings and specific embodiments.

[0050] Example 1

[0051] As Figures 1 to 6As shown, the embodiment 1 discloses a freely movable stair climber, which comprises a main frame 1, two inclined and parallel tracks 11 arranged on the main frame 1, a pedal 12 slidingly fitted on the tracks 11, and rolling wheels 123 arranged around the pedal 12 and rolling in the tracks 11. A sub-frame 2 is rotatably connected to the middle part of the main frame 1, and the main frame 1 and the sub-frame 2 can be folded and unfolded. A hinge seat is arranged on the main frame 1 to limit the extreme position of the sub-frame 2 when unfolded. Two handrails 13 are rotatably connected to the upper ends of the main frame 1, and a connecting rod 21 is arranged between each handrail 13 and the corresponding sub-frame 2 to realize linkage between them. The two ends of the connecting rod 21 are rotatably connected to the handrail 13 and the sub-frame 2 respectively, so that when the sub-frame 2 is unfolded, the handrail 13 is also unfolded, and when the sub-frame 2 is folded, the handrail 13 is also folded.

[0052] A pedal locking switch is arranged at the lower end of the main frame 1, which comprises a knob 14, a left rotating piece 16, a right rotating piece 15, and a limiting ring 17. The limiting ring 17 is used to limit the position of the left rotating piece 16 and the right rotating piece 15, so as to avoid the left rotating piece 16 and the right rotating piece 15 from being separated from the knob 14. The knob 14, the left rotating piece 16, and the right rotating piece 15 have a linkage structure, which comprises a rack arranged on each of the left rotating piece 16 and the right rotating piece 15, and a gear arranged on the knob 14 and engaged with the racks. When the knob 14 is rotated, the left rotating piece 16 and the right rotating piece 15 can respectively extend into the tracks 11 to limit the movement of the pedal 12 or retract from the tracks to release the limitation of the pedal. The limitation is achieved by stepping the pedal 12 to the lowest part of the tracks 11, and then rotating the knob 14, so that the left rotating piece 16 and the right rotating piece 15 extend into the tracks 11, thereby abutting against the rolling wheels 123 to limit the upward movement of the pedal 12.

[0053] As shown in Figures 1 to 4 and Figures 7 to 10 Two take-up devices 3 and a damping wheel 4 are arranged at the upper end of the main frame 1. The damping wheel 4 is an aluminum disc, and the two take-up devices 3 are arranged side by side and form a triangular arrangement with the damping wheel 4. A lower cover 200 is fixed on the main frame 1, and an upper cover 100 is arranged on the upper end of the take-up devices 3 and the damping wheel 4. Three main shafts 9 are arranged between the upper cover 100 and the lower cover 200, and the take-up devices 3 and the damping wheel 4 are rotatably connected to the main shafts 9 through bearings.

[0054] A circular annular groove is arranged on the take-up device 3, and a pull rope 121 is wound in the annular groove. The pull rope 121 passes through a pulley 122 of the pedal 12, and the other end of the pull rope 121 is fixed. When the pedal 12 is stepped, the pull rope 121 drives the take-up device 3 to rotate in the positive direction. A coil spring 31 is arranged in the take-up device 3, which receives the force of the take-up device 3 rotating in the positive direction to generate elastic potential energy, so as to realize the reverse rotation of the take-up device 3 to reset the pedal 12.

[0055] The lower end of the take-up device 3 is connected with a transmission wheel 7, the transmission wheel 7 is rotatably connected with a main shaft 9 through a bearing, the transmission wheel 7 is fixed with an axially extending shaft sleeve 91, the shaft sleeve 91 is sleeved on the main shaft 9 and the two are rotatably connected. The transmission connection between the take-up device 3 and the transmission wheel 7 is realized through a one-way bearing 8. The one-way bearing 8 includes an inner ring 81 and an outer ring 82, the inner ring 81 is fixedly connected with the shaft sleeve 91 and the two can rotate synchronously, the outer ring 82 is fixedly connected with the take-up device 3 and the two can rotate synchronously. When the take-up device 3 rotates in the positive direction, the outer ring 82 and the inner ring 81 are locked to make the take-up device 3 drive the transmission wheel 7 to rotate. The two transmission wheels 7 and the damping wheel 4 are transmission connected through the same belt 71 or two belts 71 respectively.

[0056] The damping wheel 4 is matched with a resistance adjusting device, the resistance adjusting device is arranged on the main frame 1, the resistance adjusting device includes an adjusting part, a fixed block 6 and a plurality of magnets 63, the magnets 63 are fixed on the inner wall of the fixed block 6; the adjusting part includes a connecting frame 61 arranged on the main frame 1, the fixed block 6 is rotatably connected with the connecting frame 61, the connecting frame 61 is matched with a locking piece (not shown in the figure), the locking piece can lock the position between the fixed block 6 and the connecting frame 61. The locking piece can be a bolt. The main frame 1 is also provided with a positioning frame 62, the positioning frame 62 is provided with a positioning groove opening towards the damping wheel 4 side, the fixed block 6 is adapted to the positioning groove. The fixed block 6 is laterally opened to form a slot opening into which the damping wheel 4 can extend, the magnets 63 are located at the axial two ends of the damping wheel 4 and can cover part of the damping wheel 4. The position of the fixed block 6 can be changed by rotating the connecting frame 61, so as to change the size of the Lorentz force acting on the damping wheel 4 during rotation, thereby adjusting the resistance felt by the pedal 12 when stepped on.

[0057] In the above scheme, when one pedal is stepped on, the belt 71 will also drive the transmission wheel 7 of the other pedal to rotate, but due to the existence of the one-way bearing 8, the transmission wheel 7 of the other pedal 12 will not drive the take-up device 3 of the other pedal 12 to rotate in the positive direction, so as to realize that the two pedals 12 are independent and will not interfere with each other.

[0058] Embodiment 2

[0059] As Figures 11 to 13The difference between the embodiment 2 and the embodiment 1 is that only two main shafts 9 are arranged on the main frame 1, two take-up reels 3 are arranged concentrically and are rotatably connected to the same main shaft 9 through bearings, and the take-up reel 3 and the transmission wheel 4 are fixedly connected and can synchronously rotate in the forward and reverse directions. Two transmission wheels 7 are drivingly connected to the damping wheel 4 through two belts 71, and the damping wheel 4 is provided with a one-way bearing 8 at each axial end, and the one-way bearings 8 are respectively connected to the driving connection ends 41 of the belts and the damping wheel. When the take-up reel 3 and the transmission wheel 7 rotate in the forward direction, the damping wheel 4 can be driven to rotate in the forward direction, thereby generating resistance to the pedal 12. When the take-up reel 3 and the transmission wheel 7 rotate in the reverse direction (the pedal is reset), the damping wheel 4 cannot be driven to rotate in the reverse direction due to the one-way bearings 8. Meanwhile, in the above scheme, due to the two one-way bearings 8, when the damping wheel 4 is driven to rotate in the forward direction by one take-up reel 3, the torque cannot be transmitted to the other take-up reel 3, so that the independence between the two pedals 12 can be achieved, and interference cannot occur.

[0060] Embodiment 3

[0061] The difference between the embodiment 3 and the embodiment 1 is that two damping wheels 4 are arranged on the main frame 1, and the two damping wheels 4 correspond to one take-up reel 3 and are drivingly connected through the transmission wheel 7 and the belt 71.

[0062] (not shown in the figure)

[0063] Embodiment 4

[0064] The difference between the embodiment 4 and the embodiment 1 is that a generator 5 (not shown in the figure) is further arranged on the main frame 1, the lower part of the damping wheel 4 is drivingly connected to the generator 5 through a belt, and the generator 5 can be driven to generate electricity when the damping wheel 4 rotates, the resistance adjusting device is any existing electric magnetic control device, and the generator 5 supplies power to the electric magnetic control device.

[0065] In use, the user can individually step down one side pedal 12, so that the take-up reel 3 rotates in the forward direction, and the coil spring 31 stores energy, and the damping wheel 4 rotates in the forward direction to generate resistance to the stepped pedal 12. When the side pedal 12 is released, the coil spring 31 drives the take-up reel 3 to rotate in the reverse direction to reset the pedal 12, but the damping wheel 4 cannot be driven to rotate due to the one-way bearing 8. The above operation is repeated to simulate the movement of climbing stairs or mountains, so as to achieve the exercise of both legs.

Claims

1. A stair-climbing machine capable of free movement, characterized in that: The utility model relates to a folding stair climbing machine, which comprises a main frame, two parallel and spaced tracks provided on the main frame, two pedals slidingly fitted on the tracks and respectively connected with a pull rope, two winding devices rotatably connected with the main frame, one end of the pull rope being wound around the two winding devices and the other end being fixed with the main frame, a coil spring provided on the winding device for restoring the pedal, a damping wheel rotatably connected with the main frame and coupled with the winding device so as to avoid interference between the two winding devices, the damping wheel being used to provide resistance when the pedal is stepped on, and a transmission wheel provided at one end of the winding device and used to transmit the force of the pedal to the damping wheel when the pedal is stepped on so as to rotate the damping wheel. The damping wheel is provided with a resistance adjusting device, which can control the resistance received by the damping wheel. The resistance adjusting device is provided on the main frame and comprises an adjusting component, a fixed block and a plurality of magnets fixed on the fixed block, the adjusting component being used to adjust the position of the fixed block relative to the damping wheel so as to change the area of the plurality of magnets covering the damping wheel. The main frame is further provided with a generator, the transmission wheel or the damping wheel being drivingly connected with the generator so as to generate electricity, the resistance adjusting device being an electric magnetic control device, and the generator supplying power to the electric magnetic control device. The main frame is foldably provided with a sub-frame, the sub-frame being used to support the entire stair climbing machine when the main frame and the sub-frame are unfolded. The upper ends of the main frame are rotatably connected with handrails, a connecting rod being provided between the handrails and the sub-frame, the two ends of the connecting rod being rotatably connected with the handrails and the sub-frame respectively. A pedal locking switch is provided between two adjacent tracks, the pedal locking switch comprising a knob, a left rotating piece and a right rotating piece, the knob having a linkage structure with the left rotating piece and the right rotating piece, the left rotating piece and the right rotating piece being capable of extending into the track to limit the movement of the pedal or retracting from the track to release the limitation on the pedal when the knob is screwed.

2. The freely movable stair climber according to claim 1, characterized in that The winding device and the transmission wheel are drivingly connected through a one-way bearing, the number of the damping wheel is one, the two transmission wheels and the damping wheel are drivingly connected through the same belt, or the winding device and the transmission wheel are drivingly connected through a one-way bearing, the number of the damping wheel is one, and the two transmission wheels and the damping wheel are drivingly connected through two belts respectively.

3. The freely movable stair climber according to claim 2, characterized in that: The number of the damping wheel is one, the two transmission wheels and the damping wheel are drivingly connected through two belts, the two ends of the damping wheel in the axial direction are provided with a one-way bearing, and the one-way bearings are respectively connected with the driving connection ends of the belt and the damping wheel.

4. The freely movable stair climber according to claim 2, characterized in that: The number of the damping wheel is two, and the damping wheels are drivingly connected with the transmission wheels through a belt respectively.

5. The free-movably locomoting stair climber according to claim 1, characterized in that: ​ 6. The freely movable stair climber according to claim 5, characterized in that: ​ 7. The freely movable stair climber according to any one of claims 1 to 6, characterized in that: ​ 8. The freely movable stair climber according to any one of claims 1 to 6, characterized in that: ​ 9. The freely movable stair climber according to any one of claims 1 to 6, characterized in that: ​ 10. The freely movable stair climber according to any one of claims 1 to 6, characterized in that: ​

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