Stair climbing machine with buffering function

Abstract

The utility model provides a stair climbing machine with a buffering function, and aims to solve the problem that when a user uses a stair climbing machine in the prior art to do exercise, impact force borne by knees is high, and the user is prone to being injured. A stair climbing machine with a buffering function comprises a supporting frame; the two pedal parts are respectively arranged on the two guide frames in a sliding manner; a first elastic rope and a second elastic rope are arranged between each pedal part and the support frame; one end of the first elastic rope corresponding to each pedal part is connected with the pedal part, and the other end of the first elastic rope sequentially bypasses the first rope winding wheel and the third rope winding wheel assembly corresponding to the first elastic rope and then is connected with the upper part of the support frame; and one end of the second elastic rope corresponding to each pedal part is connected with the pedal part, and the other end of the second elastic rope sequentially bypasses the second rope winding wheel and the fourth rope winding wheel assembly corresponding to the second elastic rope and then is connected with the lower part of the support frame. The first elastic rope and the second elastic rope can play a role in buffering the pedal part, and the knees of the user are prevented from being impacted, so that the knees can be protected from being injured.

Description

Technical Field

[0001] This utility model belongs to the field of fitness equipment technology, specifically relating to a stair climber with a buffer function. Background Technology

[0002] A stair climber is a fitness device that allows users to simulate climbing stairs or hills indoors. It mainly consists of a support frame on the ground, with two guide frames arranged side-by-side, each angled upwards from back to front. Each guide frame has a sliding foot pedal, and the two foot pedals are connected by a traction rope. During use, the user places their feet on the two foot pedals, causing them to alternately tilt and slide up and down at a certain angle. However, existing stair climbers lack cushioning for the foot pedals. When the user moves the foot pedals up and down, the knees experience strong impact at the upper and lower points of the guide frames, which can easily lead to injury and results in a poor user experience. Utility Model Content

[0003] This invention provides a stair climber with a cushioning function, which aims to solve the problem that users' knees are subjected to strong impact when exercising with existing stair climbers, which can easily lead to user injuries.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A stair climber with a cushioning function includes:

[0006] A support frame, on which two guide frames, one on the left and one on the right, are gradually inclined upwards from back to front; the support frame is also equipped with a traction rope pulley; and...

[0007] Two foot pedals, one on the left and one on the right, are slidably mounted on the two guide frames respectively. A traction rope is provided between the two foot pedals, and the traction rope passes around the traction rope pulley, with both ends of the traction rope connected to the two foot pedals respectively. A first elastic rope is provided between each foot pedal and the upper part of the support frame, and a second elastic rope is provided between each foot pedal and the lower part of the support frame. Each foot pedal is provided with a first rope-winding pulley and a second rope-winding pulley. The support frame is provided with two sets of third rope-winding pulley assemblies on the left and right, and two sets of fourth rope-winding pulley assemblies on the left and right.

[0008] One end of the first elastic rope corresponding to each foot pedal is connected to the foot pedal, and the other end of the first elastic rope passes through the corresponding first and third rope winding assemblies in sequence and is connected to the upper part of the support frame; one end of the second elastic rope corresponding to each foot pedal is connected to the foot pedal, and the other end of the second elastic rope passes through the corresponding second and fourth rope winding assemblies in sequence and is connected to the lower part of the support frame.

[0009] A further embodiment: The support frame is provided with a wheel mounting frame, which is located between the two guide frames and is parallel to the two guide frames;

[0010] The third and fourth rope wheel assemblies are both located on the wheel mounting frame. The third and fourth rope wheel assemblies, which are corresponding to the same foot pedal, are arranged from top to bottom along the extension direction of the wheel mounting frame, and the third rope wheel assembly is located above the fourth rope wheel assembly.

[0011] Based on the above technical solution: the above arrangement facilitates the first elastic rope to pass around the third rope winding wheel assembly located on the upper side and connect to the upper part of the wheel mounting frame, and the second elastic rope to pass around the fourth rope winding wheel assembly located on the lower side and connect to the lower part of the wheel mounting frame, so that the first elastic rope and the second elastic rope are wound in an orderly manner on the wheel mounting frame, avoiding crossing.

[0012] A further embodiment: The third rope winding wheel assembly includes an upper third rope winding wheel and a lower third rope winding wheel arranged side by side in the middle of the wheel mounting frame. Each of the first elastic ropes passes upward from the lower side of the corresponding lower third rope winding wheel between the upper third rope winding wheel and the lower third rope winding wheel and is connected to the upper part of the wheel mounting frame.

[0013] Based on the above technical solution: the first elastic rope passes between the upper third winding wheel and the lower third winding wheel, so that the upper third winding wheel and the lower third winding wheel can limit the first elastic rope, preventing the first elastic rope from detaching from the third winding wheel assembly, so that when the foot pedal tilts and slides up and down, the first elastic rope and the third winding wheel assembly are stably engaged.

[0014] A further embodiment: The fourth rope winding wheel assembly includes an upper fourth rope winding wheel, a lower fourth rope winding wheel arranged side by side in the middle of the wheel mounting frame, and a fifth rope winding wheel arranged at the lower part of the wheel mounting frame;

[0015] Each second elastic cord passes between its corresponding upper fourth winding wheel and lower fourth winding wheel, extends downwards and around its corresponding fifth winding wheel, and then extends upwards and connects to the lower part of the wheel mounting bracket.

[0016] Based on the above technical solution: the second elastic rope passes between the upper fourth winding wheel and the lower fourth winding wheel, thereby limiting the second elastic rope and preventing it from detaching from the fourth winding wheel assembly. This ensures that the second elastic rope and the fourth winding wheel assembly are stably engaged when the foot pedal slides up and down. The fifth winding wheel serves two purposes: firstly, it steers the second elastic rope to facilitate its connection with the lower part of the wheel mounting frame; secondly, the way the second elastic rope passes around the fifth winding wheel avoids frictional contact between it and the wheel mounting frame, making the winding method more stable.

[0017] A further solution: Each of the first elastic ropes is provided with a first rope connection part, and a set of upper gear components are provided on the left and right sides of the upper part of the wheel mounting frame. The upper gear component includes a number of upper gear connection parts arranged in parallel along the extension direction of the wheel mounting frame. Each first rope connection part adjusts the elasticity of the first elastic rope by connecting with different upper gear connection parts.

[0018] Based on the above technical solution: the above setting allows users to adjust the elastic resistance applied by the first elastic rope to the foot pedal by connecting the first rope connecting part on the first elastic rope to the upper gear connecting parts at different positions, thereby adjusting the resistance level. Different users can adjust the resistance level to be increased or decreased according to their own needs, thus meeting the fitness needs of more users and having a wider range of applications.

[0019] A further solution: Each of the second elastic ropes is provided with a second rope connection part, and a set of lower gear components are provided on the left and right sides of the lower part of the wheel mounting frame. The lower gear component includes a number of lower gear connection parts arranged in parallel along the extension direction of the wheel mounting frame. Each of the second rope connection parts adjusts the elasticity of the second elastic rope by connecting with different lower gear connection parts.

[0020] Based on the above technical solution: the above setting allows users to adjust the elastic resistance applied by the second elastic rope to the foot pedal by connecting the second rope connecting part on the second elastic rope to the lower gear connecting parts at different positions, thereby adjusting the resistance level. Different users can adjust the resistance level to be increased or decreased according to their own needs, thus meeting the fitness needs of more users and having a wider range of applications.

[0021] A further embodiment: the first rope wheel on each foot pedal is located above the second rope wheel along the direction of extension of the guide frame.

[0022] A further embodiment: Each foot pedal is provided with a rope fixing part, and the first elastic rope and the second elastic rope corresponding to each foot pedal are connected to the rope fixing part.

[0023] Based on the above technical solution: the first elastic rope and the second elastic rope corresponding to each foot pedal are connected to the same rope fixing part on the foot pedal, which facilitates assembly.

[0024] A further embodiment: the rope fixing part on each of the foot pedals is located on the upper side of the first rope sheave along the extension direction of the guide frame.

[0025] A further embodiment: the diameter of the second rope wheel on each of the foot pedals is larger than that of the first rope wheel; or, the distance between the second rope wheel on each of the foot pedals and the foot pedal is smaller than the distance between the first rope wheel and the foot pedal.

[0026] Based on the above technical solution: the above setting can avoid the first elastic rope and the second elastic rope from crossing and knotting, so that the first elastic rope and the second elastic rope are wound in an orderly manner, resulting in better stability.

[0027] A further embodiment: the two ends of the traction rope are respectively connected to the rope fixing parts on the two foot pedals.

[0028] The beneficial effects of this utility model are as follows:

[0029] This invention features a first elastic rope connected to each foot pedal at one end, with the other end passing over its corresponding first and third rope-winding wheel assemblies before connecting to the upper part of the support frame. Similarly, a second elastic rope is connected to each foot pedal at one end, with the other end passing over its corresponding second and fourth rope-winding wheel assemblies before connecting to the lower part of the support frame. This design ensures that as the foot pedal slides up and down along the guide frame, the first and second elastic ropes not only provide damping for the foot pedal, resulting in better fitness results, but also cushion the foot pedal, preventing impact on the user's knees when the foot pedal slides to the upper and lower positions, thus protecting the knees from injury.

[0030] By setting a first and a second rope-winding wheel on the foot pedal and a third and a fourth rope-winding wheel assembly on the support frame, the first and second elastic ropes can pass over the corresponding rope-winding wheels respectively, which can prevent the two elastic ropes from crossing and knotting, thus making the two foot pedals more stable during the alternating tilting and sliding process. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a first-person view structural diagram of a stair-climbing machine with a buffer function.

[0033] Figure 2 This is a second-view structural diagram of a stair-climbing machine with a buffer function.

[0034] Figure 3 This is a schematic diagram of the rope winding method.

[0035] Figure 4 yes Figure 1 A magnified structural diagram at point A.

[0036] Figure 5 yes Figure 1 A magnified structural diagram at point B.

[0037] Explanation of the labels in the diagram:

[0038] 1-Support frame; 11-Front bracket; 111-Handrail; 12-Rear bracket; 121-Guide frame; 13-Wheel mounting bracket; 131-Hanging part; 132-Third rope winding wheel assembly; 132a-Upper third rope winding wheel; 132b-Lower third rope winding wheel; 133-Fourth rope winding wheel assembly; 133a-Upper fourth rope winding wheel; 133b-Lower fourth rope winding wheel; 133c-Fifth rope winding wheel; 134-Upper gear connector 135 - Lower gear connection part; 14 - Locking pin; 2 - Foot pedal part; 21 - Pedal; 211 - First positioning hole; 22 - Sliding seat; 221 - Second rope winding wheel; 222 - Positioning pin; 223 - Rope fixing part; 224 - First rope winding wheel; 3 - First elastic rope; 31 - First rope connection part; 4 - Second elastic rope; 41 - Second rope connection part; 5 - Hook; 6 - Traction rope; 7 - Traction rope wheel. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0040] like Figures 1 to 5 As shown, this embodiment provides a stair-climbing machine with a buffer function, including:

[0041] Support frame 1, wherein the support frame 1 is provided with two guide frames 121, one on the left and one on the right, which are gradually inclined upwards from back to front; the support frame 1 is also provided with a traction rope pulley 7; and,

[0042] Two foot pedals 2, one on the left and one on the right, are slidably mounted on two guide frames 121 respectively. A traction rope 6 is provided between the two foot pedals 2. The traction rope 6 passes around the traction rope wheel 7 and its two ends are connected to the two foot pedals 2 respectively. A first elastic rope 3 is provided between each foot pedal 2 and the upper part of the support frame 1, and a second elastic rope 4 is provided between each foot pedal 2 and the lower part of the support frame 1. Each foot pedal 2 is provided with a first rope wheel 224 and a second rope wheel 221. The support frame 1 is provided with two sets of third rope wheel assemblies 132 on the left and right and two sets of fourth rope wheel assemblies 133 on the left and right.

[0043] One end of the first elastic rope 3 corresponding to each foot pedal 2 is connected to the foot pedal 2, and the other end of the first elastic rope 3 passes through the first winding wheel 224 and the third winding wheel assembly 132 corresponding to it in sequence and is connected to the upper part of the support frame 1; one end of the second elastic rope 4 corresponding to each foot pedal 2 is connected to the foot pedal 2, and the other end of the second elastic rope 4 passes through the second winding wheel 221 and the fourth winding wheel assembly 133 corresponding to it in sequence and is connected to the lower part of the support frame 1.

[0044] Specifically, in the initial state, the foot pedal 2 is located at the initial position on the guide frame 121. When the foot pedal 2 slides downward along the guide frame 121 from the initial position, the first elastic rope 3 and the second elastic rope 4 are both stretched, thereby generating a damping force, which plays a buffering role and reduces the impact on the knee when the foot pedal 2 slides to the lower position. When the foot pedal 2 slides upward along the guide frame 121 from the initial position to the upper position, the principle is the same.

[0045] In some specific implementations, such as Figures 1 to 5 As shown, a wheel mounting bracket 13 is provided on the support frame 1. The wheel mounting bracket 13 is located between the two guide frames 121 and is parallel to the two guide frames 121.

[0046] The third rope winding wheel assembly 132 and the fourth rope winding wheel assembly 133 are both located on the wheel mounting frame 13. The third rope winding wheel assembly 132 and the fourth rope winding wheel assembly 133 corresponding to the same foot pedal 2 are arranged from top to bottom along the extension direction of the wheel mounting frame 13, and the third rope winding wheel assembly 132 is located above the fourth rope winding wheel assembly 133. Specifically, the third rope winding wheel assembly 132 and the fourth rope winding wheel assembly 133 corresponding to the left foot pedal 2 are both located on the left side of the wheel mounting frame 13, and the third rope winding wheel assembly 132 and the fourth rope winding wheel assembly 133 corresponding to the right foot pedal 2 are both located on the right side of the wheel mounting frame 13, so that the rope winding is more orderly and avoids the two elastic ropes on the left and the two elastic ropes on the right crossing.

[0047] In some specific implementations, such as Figures 1 to 5 As shown, the third rope winding wheel assembly 132 includes an upper third rope winding wheel 132a and a lower third rope winding wheel 132b arranged side by side in the middle of the wheel mounting frame 13. The upper third rope winding wheel 132a is located on the upper side of the lower third rope winding wheel 132b along the extending direction of the wheel mounting frame 13. Each first elastic rope 3 passes upward from the lower side of its corresponding lower third rope winding wheel 132b between the upper third rope winding wheel 132a and the lower third rope winding wheel 132b and then connects to the upper part of the wheel mounting frame 13. This makes the portion of the first elastic rope 3 after passing around the third rope winding wheel assembly 132 parallel to the wheel mounting frame 13, avoiding frictional contact between the first elastic rope 3 and the wheel mounting frame 13. At the same time, the first elastic rope 3 passes between the upper third winding wheel 132a and the lower third winding wheel 132b, so that the upper third winding wheel 132a and the lower third winding wheel 132b play a limiting role on the first elastic rope 3, preventing the first elastic rope 3 from detaching from the third winding wheel assembly 132.

[0048] In some specific implementations, such as Figures 1 to 5 As shown, the fourth rope winding wheel assembly 133 includes an upper fourth rope winding wheel 133a, a lower fourth rope winding wheel 133b arranged side by side in the middle of the wheel mounting frame 13, and a fifth rope winding wheel 133c arranged in the lower part of the wheel mounting frame 13; the upper fourth rope winding wheel 133a, the lower fourth rope winding wheel 133b and the fifth rope winding wheel 133c are arranged from top to bottom along the extension direction of the wheel mounting frame 13.

[0049] Each second elastic rope 4 passes directly between its corresponding upper fourth winding wheel 133a and lower fourth winding wheel 133b and extends downwards first, thus facilitating the second elastic rope 4 to pass around its corresponding fifth winding wheel 133c. After passing around its corresponding fifth winding wheel 133c, the second elastic rope 4 extends upwards and connects to the lower part of the wheel mounting bracket 13. Specifically, the second elastic rope 4 passes between the upper fourth winding wheel 133a and lower fourth winding wheel 133b, which limit the second elastic rope 4 and prevent it from detaching from the fourth winding wheel assembly 133. The fifth winding wheel 133c serves to steer the second elastic rope 4, and the portion of the second elastic rope 4 after passing around the fifth winding wheel 133c is parallel to the wheel mounting bracket 13, preventing frictional contact between it and the wheel mounting bracket 13.

[0050] In some specific implementations, such as Figures 1 to 5 As shown, each of the first elastic ropes 3 is provided with a first rope connecting part 31. A set of upper gear components is provided on both the left and right sides of the upper part of the wheel mounting frame 13. Each upper gear component includes several upper gear connecting parts 134 arranged side-by-side along the extending direction of the wheel mounting frame 13. Each first rope connecting part 31 adjusts the elasticity of the first elastic rope 3 by connecting to different upper gear connecting parts 134. This, in turn, adjusts the resistance level of the foot pedal 2. Different users can adjust the resistance level to be increased or decreased according to their own needs.

[0051] Each of the second elastic ropes 4 is provided with a second rope connecting part 41. A set of lower gear components is provided on both the left and right sides of the lower part of the wheel mounting frame 13. Each lower gear component includes several lower gear connecting parts 135 arranged side-by-side along the extending direction of the wheel mounting frame 13. Each second rope connecting part 41 adjusts the elasticity of the second elastic rope 4 by connecting to different lower gear connecting parts 135, thereby adjusting the resistance level.

[0052] Preferably, there are three upper gear connecting parts 134, which increase progressively from the lower side to the upper side of the wheel mounting bracket 13; and preferably, there are three lower gear connecting parts 135, which also increase progressively from the lower side to the upper side of the wheel mounting bracket 13. These two parts work together to allow the user to adjust to more gears. The resistance increases progressively, meaning the resistance generated by the elastic rope on the foot pedal 2 gradually increases.

[0053] In some specific implementations, such as Figures 1 to 4 As shown, in order to facilitate the user to adjust the resistance level, hooks 5 are provided on the first rope connection part 31 and the second rope connection part 41, and hooking parts 131 are provided on the upper gear connection part 134 and the lower gear connection part 135, and the hooks 5 are hooked on the corresponding hooking parts 131.

[0054] The hooking part 131 can be configured as a hooking hole, hooking groove, etc. When it is a hooking hole, the hooking holes at corresponding positions of the left and right foot pedals 2 are interconnected.

[0055] In some specific implementations, such as Figures 1 to 5 As shown, the first rope wheel 224 on each foot pedal 2 is located above the second rope wheel 221 extending along the guide frame 121. Preferably, all rope wheels are located on the same plane.

[0056] Each foot pedal 2 is provided with a rope fixing part 223, and the first elastic rope 3 and the second elastic rope 4 corresponding to each foot pedal 2 are connected to the rope fixing part 223. The rope fixing part 223 on each foot pedal 2 is located on the upper side of the first rope winding wheel 224 extending along the guide frame 121. To facilitate rope winding, the diameter of the second rope winding wheel 221 on each foot pedal 2 can be set to be larger than that of the first rope winding wheel 224; or, the distance between the second rope winding wheel 221 and the foot pedal 2 on each foot pedal 2 can be smaller than the distance between the first rope winding wheel 224 and the foot pedal 2, thereby avoiding the first elastic rope 3 and the second elastic rope 4 from crossing.

[0057] Alternatively, the rope fixing part 223 can also be set on the foot pedal part 2 at a position between the first rope winding wheel 224 and the second rope winding wheel 221.

[0058] For ease of assembly, both ends of the traction rope 6 are connected to the rope fixing parts 223 on the two foot pedals 2. The rope fixing part 223 is specifically a pin. The first elastic rope 3, the second elastic rope 4, and the traction rope 6 are all equipped with hook rings, which are hooked onto the pins. The outer side of the pin is engaged with a nut to limit the movement of the three ropes.

[0059] In some specific implementations, such as Figure 1 As shown, the support frame 1 includes a front support 11 and a rear support 12. The upper end of the rear support 12 is hinged to the front support 11, and the lower ends of the rear support 12 and the lower ends of the front support 11 are spread apart and supported on the ground. When the rear support 12 and the front support 11 are unfolded, they are locked in the unfolded state by a locking pin 14. When the locking pin 14 is removed, the front support 11 and the rear support 12 can be folded together to facilitate storage. The upper side of the front support 11 is provided with two left and right handrails 111, and the two guide frames 121 are respectively arranged on the left and right sides of the rear support 12.

[0060] In some specific implementations, such as Figure 5As shown, the foot pedal 2 includes a pedal 21 and a sliding seat 22 located below the pedal 21 and slidably connected to the corresponding guide frame 121. The front end of the pedal 21 is hinged to the sliding seat 22 via a pivot. An angle adjuster is provided between the rear end of the pedal 21 and the sliding seat 22 to adjust and lock the tilt angle of the pedal 21 relative to the sliding seat 22, thereby switching the foot pedal 2 to a folded state or meeting the needs of different users. The angle adjuster includes a plurality of first positioning holes 211 located on the pedal 21 and arranged around the pivot, a second positioning hole provided on the sliding seat 22, and a positioning pin 222. The positioning pin 222 adjusts and locks the tilt angle of the pedal 21 by engaging different first positioning holes 211 with the second positioning holes.

[0061] Working principle explanation:

[0062] During use, the user places both feet on the two foot pedals 2, causing them to slide up and down alternately along the two guide frames 121. During this movement, the first elastic rope 3 and the second elastic rope 4 act as dampers, requiring the user to overcome resistance for better fitness results. They also cushion the impact on the user's knees. When adjusting the resistance level, the hook 5 of one elastic rope is detached from the hook 131 on the wheel mounting frame 13 and then hooked onto the corresponding hook 131. This increases or decreases the elastic resistance of the elastic rope on the foot pedal 2, thus adjusting the resistance level and balancing the two foot pedals 2.

[0063] This utility model is not limited to the above-mentioned optional embodiments. Under the premise of non-contradiction, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the guidance of this utility model. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope of the claims of this utility model are within the protection scope of this utility model.

Claims

1. A stair-climbing machine with a buffer function, characterized in that, include: A support frame, on which two guide frames, one on the left and one on the right, are gradually inclined upwards from back to front; the support frame is also equipped with a traction rope pulley; and... Two foot pedals, one on the left and one on the right, are slidably mounted on the two guide frames respectively. A traction rope is provided between the two foot pedals, and the traction rope passes around the traction rope pulley, with both ends of the traction rope connected to the two foot pedals respectively. A first elastic rope is provided between each foot pedal and the upper part of the support frame, and a second elastic rope is provided between each foot pedal and the lower part of the support frame. Each foot pedal is provided with a first rope-winding pulley and a second rope-winding pulley. The support frame is provided with two sets of third rope-winding pulley assemblies on the left and right, and two sets of fourth rope-winding pulley assemblies on the left and right. One end of the first elastic rope corresponding to each foot pedal is connected to the foot pedal, and the other end of the first elastic rope passes through the corresponding first and third rope winding assemblies in sequence and is connected to the upper part of the support frame; one end of the second elastic rope corresponding to each foot pedal is connected to the foot pedal, and the other end of the second elastic rope passes through the corresponding second and fourth rope winding assemblies in sequence and is connected to the lower part of the support frame.

2. The stair climber with buffer function according to claim 1, wherein a wheel mounting frame is provided on the support frame, and the wheel mounting frame is located between the two guide frames and is parallel to the two guide frames; The third and fourth rope wheel assemblies are both located on the wheel mounting frame. The third and fourth rope wheel assemblies, which are corresponding to the same foot pedal, are arranged from top to bottom along the extension direction of the wheel mounting frame, and the third rope wheel assembly is located above the fourth rope wheel assembly.

3. A stair climber with a buffer function according to claim 2, wherein the third rope wheel assembly includes an upper third rope wheel and a lower third rope wheel arranged side by side in the middle of the wheel mounting frame, and each first elastic rope passes upward from the lower side of the corresponding lower third rope wheel between the upper third rope wheel and the lower third rope wheel and is connected to the upper part of the wheel mounting frame.

4. A stair climber with a buffer function according to claim 2, wherein the fourth rope wheel assembly includes an upper fourth rope wheel, a lower fourth rope wheel and a fifth rope wheel arranged side by side in the middle of the wheel mounting frame; Each second elastic cord passes between its corresponding upper fourth winding wheel and lower fourth winding wheel, extends downwards and around its corresponding fifth winding wheel, and then extends upwards and connects to the lower part of the wheel mounting bracket.

5. A stair climber with a buffer function according to claim 2, wherein each first elastic rope is provided with a first rope connecting part, and a set of upper gear components are provided on the left and right sides of the upper part of the wheel mounting frame, the upper gear component including a plurality of upper gear connecting parts arranged in parallel along the extension direction of the wheel mounting frame, and each first rope connecting part adjusts the elasticity of the first elastic rope by connecting with different upper gear connecting parts.

6. A stair climber with a buffer function according to claim 2, wherein each second elastic rope is provided with a second rope connection part, and a set of lower stop components are provided on the left and right sides of the lower part of the wheel mounting frame, the lower stop component including a plurality of lower stop connection parts arranged in parallel along the extension direction of the wheel mounting frame, and each second rope connection part adjusts the elasticity of the second elastic rope by connecting with different lower stop connection parts.

7. The stair climber with a buffer function according to claim 1, wherein the first rope wheel on each foot pedal is located above the second rope wheel along the extension direction of the guide frame.

8. A stair climber with a buffer function according to claim 1 or 7, wherein each foot pedal is provided with a rope fixing part, and the first elastic rope and the second elastic rope corresponding to each foot pedal are connected to the rope fixing part.

9. A stair climber with a buffer function according to claim 8, wherein the rope fixing part on each of the foot pedals is located on the upper side of the first rope wheel along the extension direction of the guide frame; The diameter of the second rope wheel on each of the foot pedals is larger than that of the first rope wheel; or, the distance between the second rope wheel on each of the foot pedals and the foot pedal is smaller than the distance between the first rope wheel and the foot pedal.

10. A stair climber with a buffer function according to claim 8, wherein the two ends of the traction rope are respectively connected to the rope fixing parts on the two foot pedals.

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