Stair machine

Abstract

The utility model relates to a stair machine which comprises a bottom frame assembly, a pedal assembly, a power assembly, a first wheel set, a transmission part and a second wheel set. The two first wheel sets are rotationally arranged at the positions, close to the two ends, of the underframe assembly respectively. The transmission part is wound on the two first wheel sets and connects the two first wheel sets; the at least one second wheel set is rotationally arranged on the underframe assembly, is connected with the transmission part, rotates with the two first wheel sets at the same time, and is located on the sides, close to the bearing plane, of the two first wheel sets, so that the length of the transmission part is increased; the pedal assemblies are connected end to end and bent to form steps for stair climbing training, and the two ends of the pedal assemblies are rotationally connected with the transmission parts correspondingly; the power assembly is arranged on the bottom frame assembly and used for driving the pedal assembly to move. According to the stair machine, under the condition that the height is kept unchanged, the length of the transmission part can be increased, the stepping depth of the pedal assembly is increased, the use experience of the stair machine is improved, and space resources are saved.

Description

Technical Field

[0001] This application belongs to the field of fitness equipment technology, and in particular relates to a stair climber. Background Technology

[0002] In recent years, with the popularization of fitness awareness, the number of people exercising has continued to rise, which in turn has led to a continuous increase in the demand for fitness equipment.

[0003] In existing stair climbers, users train to climb stairs. The stair climber includes a frame, two sprockets, a chain, a motor, and multiple pedals. There is a height difference between the two ends of the frame. The two sprockets are respectively rotated at the two ends of the frame. The chain connects the motor and the two sprockets for transmission. The multiple pedals are connected end to end and rotate on the chain. When the chain drives the multiple pedals to circulate between the two sprockets, two adjacent pedals bend to form steps for the user to train to climb stairs.

[0004] When the user's foot length is greater than the pedal depth, the user's foot cannot be fully placed on the pedal during stair climbing training, thus reducing the training experience. However, if the pedal depth is increased while the chain length remains unchanged, the bending angle between two adjacent pedals will decrease, making the support relationship between the two pedals unstable and prone to tilting when stepped on. If the pedal depth is increased and the chain length is increased, the height difference between the two ends of the support needs to be increased to ensure the stability of the chain transmission, which will result in an increased footprint of the support and a larger size of the equipment. Utility Model Content

[0005] To address the shortcomings of related technologies, this application provides a stair climber that, by placing at least one second wheel set on the side of two first wheel sets close to the bearing plane and driving the second wheel set and the two first wheel sets to rotate simultaneously through a transmission component, can extend the length of the transmission component and increase the tread depth of the tread assembly while keeping the height of the stair climber constant, thereby improving the user experience of the stair climber and saving space resources.

[0006] This application provides a stair machine, including:

[0007] A base frame assembly is disposed on a bearing plane, wherein one end of the base frame assembly is farther from the bearing plane than the other end, so that a height difference is formed between the two ends of the base frame assembly;

[0008] The first wheel set is rotatably mounted on the base frame assembly near both ends thereof;

[0009] A transmission component is wound around and connected to the two first wheel sets so that the two first wheel sets rotate simultaneously.

[0010] The second wheel set, at least one of the second wheel sets, is rotatably mounted on the base frame assembly. The second wheel set is connected to the transmission component and rotates simultaneously with the two first wheel sets. The second wheel set is located on the side of the two first wheel sets closer to the bearing plane, so as to increase the length of the transmission component.

[0011] A pedal assembly, wherein multiple pedal assemblies are connected end to end and bent to form steps for stair climbing training, and both ends of the pedal assembly are rotatably connected to the transmission component.

[0012] A power unit, located on the base frame assembly, is used to drive the pedal assembly to move.

[0013] In some embodiments, the rotation axes of the first wheel set and the second wheel set are parallel to each other and not in the same plane.

[0014] In some embodiments, the first wheel set and the second wheel set form a triangular support structure perpendicular to the bearing plane to stably support the pedal assembly for stair climbing training.

[0015] In some embodiments, the first wheel set further includes:

[0016] The first wheel is rotatably mounted on the base frame assembly and connected to the transmission component, and a first gap is provided between the first wheel and the bearing plane;

[0017] The second wheel is rotatably mounted on the base frame assembly and connected to the transmission component. A second gap is provided between the second wheel and the bearing plane, and the first gap is greater than the second gap.

[0018] In some embodiments, a third gap is provided between the second wheel set and the bearing plane, the third gap being no greater than the first gap and no less than the second gap.

[0019] In some embodiments, the pedal assembly includes:

[0020] The first plate has two ends rotatably mounted on the transmission component, and the first plate is used for stepping on to perform stair climbing training.

[0021] The second plate is rotatably connected to the adjacent end of the first plate, and both ends of the second plate are rotatably mounted on the transmission member. The second plate is used to support the first plate.

[0022] In some embodiments, when the first plate moves to the side of the first wheel assembly away from the bearing plane, the first plate is parallel to the bearing plane.

[0023] In some embodiments, the base frame assembly includes:

[0024] The base frame is disposed on the bearing plane;

[0025] The first upright frame is fixed at one end of the base frame;

[0026] The second upright is fixed to the other end of the base frame relative to the first upright. The first upright cooperates with the second upright to form a height difference between the two ends of the base frame. The pedal assembly is located between the first upright and the second upright for use in stair climbing training.

[0027] In some embodiments, the chassis assembly further includes:

[0028] An auxiliary frame is provided, with its two ends connected to the ends of the first and second uprights away from the base frame, respectively, to keep the first and second uprights relatively stable.

[0029] In some embodiments, the base frame, the first upright frame, the second upright frame, and the auxiliary frame together form an installation space, the first wheel set, the second wheel set, and the transmission component are located within the installation space, and the first wheel set and the second wheel set drive the pedal assembly to circulate in and out of the installation space through the transmission component.

[0030] In summary, this application provides a stair climber that, by placing at least one second wheel set on the side of two first wheel sets near the bearing plane, and driving the second wheel set and the two first wheel sets to rotate simultaneously via a transmission component, can extend the length of the transmission component and increase the tread depth of the tread assembly while maintaining a constant stair climber height, thereby improving the user experience and saving space. By setting the rotation axes of the two first wheel sets and the second wheel sets to be parallel to each other and not in the same plane, the two first wheel sets, the second wheel sets, and the transmission component can be stably coupled and transmitted. The two first wheel sets and the second wheel sets form a triangular support structure perpendicular to the bearing plane to stably support the tread assembly for stair climbing training. The first spacing... The second spacing restricts the third spacing, thereby limiting the position of the second wheel assembly. This prevents excessive bending of the transmission components when the pedal assembly moves upward and prevents deviation of the pedal assembly's trajectory due to gravitational acceleration when it moves downward. The cooperation between the first and second plates supports the user's stair-climbing training. By keeping the first plate parallel to the bearing plane, the user is prevented from being unstable and in danger during stair-climbing training. The cooperation between the base frame, the first upright, and the second upright lays the foundation for stable movement of the pedal assembly. An auxiliary frame maintains the relative stability of the first and second uprights. The installation space allows for alternating the footing surface on the pedal assembly used for training, enabling continuous stair-climbing training in place.

[0031] Other features and advantages of this application will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practicing the invention. The objectives and other advantages of this application may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0033] Figure 1 This is a perspective view of the stair machine of this application;

[0034] Figure 2 This is a front view of the stair machine in this application;

[0035] Figure 3 This is a side view of the stair machine of this application.

[0036] In the picture:

[0037] 100. Base frame assembly; 101. Base frame; 102. First upright; 103. Second upright; 104. Auxiliary frame; 200. First wheel set; 201. First wheel; 202. Second wheel; 300. Transmission component; 400. Second wheel set; 500. Pedal assembly; 501. First plate; 502. Second plate. Detailed Implementation

[0038] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0039] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0040] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Specific Implementation

[0043] Reference Appendix Figure 1 To be continued Figure 3 , Figure 1 This is a perspective view of the stair machine of this application; Figure 2 This is a front view of the stair machine in this application; Figure 3 This is a side view of the stair machine of this application; the following is in conjunction with the attached... Figure 1 To be continued Figure 3 Specific embodiments are described below.

[0044] Reference Appendix Figure 1 This application provides a stair machine, including a base frame assembly 100, a tread assembly 500, a power assembly, a first wheel set 200, a transmission component 300, and a second wheel set 400.

[0045] A base frame assembly 100 is mounted on a bearing plane, with one end of the base frame assembly 100 farther from the bearing plane than the other end, creating a height difference between the two ends of the base frame assembly 100. Two first wheel sets 200 are rotatably mounted on the base frame assembly 100 near its two ends. A transmission member 300 is wound around the two first wheel sets 200 and connects them, so that the two first wheel sets 200 rotate simultaneously. At least one second wheel set 400 is rotatably mounted on the base frame assembly 100, and the second wheel set 400 is connected to the transmission member 300 and... The first wheel set 200 rotates simultaneously, and the second wheel set 400 is located on the side of the first wheel set 200 closer to the bearing plane. When the second wheel set 400 is positioned closer to the bearing plane, the circumference of the transmission component 300 increases. Multiple pedal assemblies 500 are connected end to end and bent to form steps for stair climbing training. The two ends of the pedal assembly 500 are rotatably connected to the transmission component 300. The power component is located on the base frame assembly 100 and connected to the transmission component 300, and is used to drive the pedal assembly 500 to move through the transmission component 300.

[0046] The base frame assembly 100 provides a training frame with a height difference. The first wheel set 200 is connected to the transmission component 300 and is mounted on the base frame assembly 100. The power component is connected to the transmission component 300 to transmit power to the first wheel set 200, thereby causing the pedal assembly 500 mounted on the transmission component 300 to move. Through the height difference design at both ends of the base frame assembly 100, combined with the linkage between the transmission component 300 and the pedal, a cyclic lifting and lowering step structure is formed, requiring the user to continuously resist gravity to climb stairs when stepping on the pedal assembly 500.

[0047] The second wheel set 400 is located on the side of the first wheel set 200 closest to the bearing plane, and drives the second wheel set 400 and the first wheel set 200 to rotate simultaneously through the transmission component 300. Since the second wheel set 400 is located closer to the bearing plane, the circumference of the transmission component 300 is larger. Therefore, even when the size of the pedal assembly 500 and the chain length increase, there is no need to increase the height difference between the two ends of the base frame assembly 100, and the transmission component 300 can still stably drive the pedal assembly 500 to move. That is, the height difference between the two ends of the base frame assembly 100 remains unchanged, which improves the user experience of the stair machine and saves space resources.

[0048] Reference Appendix Figures 1 to 3 In some embodiments, the base frame assembly 100 includes a base frame 101, a first upright 102, and a second upright 103. The base frame 101 is disposed on a bearing plane, the first upright 102 is fixed to one end of the base frame 101, and the second upright 103 is fixed to the other end of the base frame 101 relative to the first upright 102. The first upright 102 cooperates with the second upright 103 to form a height difference between the two ends of the base frame 101. The step assembly 500 is disposed between the first upright 102 and the second upright 103 for use in stair climbing training.

[0049] Specifically, the base frame 101 is a rectangular metal frame, which is directly set on a bearing plane to ensure overall stability.

[0050] The base frame 101 is used to provide stable support, disperse vibrations during the operation of the stair machine, and prevent displacement; and the base frame 101 is also used to provide an installation foundation for the first upright 102 and the second upright 103.

[0051] The first upright 102 is a metal frame that is perpendicular to the top surface of the base frame 101 and fixed to one end of the base frame 101. The distance from the end of the first upright 102 away from the base frame 101 to the bearing plane is the first height.

[0052] The second support frame 103 is a metal frame that is perpendicular to the top surface of the base frame 101 and fixed on the base frame 101. The second support frame 103 is located at the other end of the base frame 101 relative to the first support frame 102. The distance from the end of the second support frame 103 away from the base frame 101 to the bearing plane is the second height.

[0053] The second height is less than the first height, thus creating a height difference between the two ends of the base frame assembly 100.

[0054] The pedal assembly 500 is located between the first upright 102 and the second upright 103. The movement trajectory of the transmission component 300 and the pedal assembly 500 on the side of the first upright 102 and the second upright 103 away from the bearing plane is an inclined straight line, which simplifies the movement path of the transmission component 300 and the pedal assembly 500 and reduces mechanical loss.

[0055] Reference Appendix Figure 2 and Figure 3 In some embodiments, the base frame assembly 100 assembly further includes an auxiliary frame 104, the two ends of which are connected to the ends of the first upright 102 and the second upright 103 away from the base frame 101, respectively, to keep the first upright 102 and the second upright 103 relatively stable.

[0056] Specifically, the auxiliary frame 104 is a high-strength metal beam. The two ends of the auxiliary frame 104 are fixed to the top of the first upright 102 and the second upright 103, respectively, that is, the ends of the first upright 102 and the second upright 103 that are away from the base frame 101, forming a stable support structure as a whole.

[0057] The auxiliary frame 104 is used to significantly enhance the rigidity of the overall frame of the base frame assembly 100, prevent the first upright 102 and the second upright 103 from deforming or shaking due to force, and ensure that the pedal assembly 500 runs smoothly on the base frame assembly 100.

[0058] Reference Appendix Figure 2 In some embodiments, the base frame 101, the first upright frame 102, the second upright frame 103 and the auxiliary frame 104 together form an installation space, and the two first wheel sets 200, the second wheel set 400 and the transmission component 300 are located in the installation space. The two first wheel sets 200 and the second wheel set 400 drive the pedal assembly 500 to circulate in and out of the installation space through the transmission component 300.

[0059] Specifically, the base frame 101, the first upright frame 102, the second upright frame 103, and the auxiliary frame 104 together form a box-type installation space. The two first wheel sets 200, the second wheel set 400, and the transmission component 300 are located within the installation space. This space is used to isolate the transmission components such as the first wheel set 200, the second wheel set 400, and the transmission component 300 from contact with the outside of the installation space, avoiding the risk of the user's clothing or limbs getting caught in the dust and water, and extending the life of the internal parts of the installation space. The installation space also serves to reduce the noise emitted by the transmission components such as the first wheel set 200, the second wheel set 400, and the transmission component 300 during operation, thereby improving the user's training experience.

[0060] The two first wheel sets 200 and the second wheel set 400 drive the pedal assembly 500 to circulate in and out of the installation space through the transmission component 300, so that the pedal assembly 500 forms a stepped structure that circulates and rises and falls, requiring the user to continuously resist gravity to climb stairs when stepping on the pedal assembly 500.

[0061] Reference Appendix Figure 1 and Figure 2 In some embodiments, two first wheel sets 200 are rotatably mounted on the base frame assembly 100 near its two ends, and a transmission member 300 is wound around the two first wheel sets 200 and connects them, so that the two first wheel sets 200 rotate simultaneously; the first wheel set 200 further includes a first wheel 201 and a second wheel 202, the first wheel 201 is rotatably mounted on the base frame assembly 100 and connected to the transmission member 300, and a first gap is provided between the first wheel 201 and the bearing plane, the second wheel 202 is rotatably mounted on the base frame assembly 100 and connected to the transmission member 302, and a second gap is provided between the second wheel 202 and the bearing plane, the first gap being greater than the second gap.

[0062] Specifically, the first wheel 201 includes, but is not limited to, a sprocket with teeth on its edge, and the transmission component 300 is configured as a chain. The first wheel 201 is connected to the transmission component 300 through the teeth. The second wheel 202 includes, but is not limited to, a sprocket with teeth on its edge, and the second wheel 202 is connected to the transmission component 300 through the teeth. The transmission component 300 causes the first wheel 201 and the second wheel 202 to rotate simultaneously.

[0063] The first wheel 201 is rotatably mounted on the first upright 102 or the auxiliary frame 104. The first wheel 201 is positioned close to the end of the first upright 102 that is away from the base frame 101. The first wheel 201 is provided with a first gap between the position furthest from the bearing plane and the bearing plane. The first gap is not greater than the first height to ensure that the first wheel 201 is located within the installation space.

[0064] The second wheel 202 is rotatably mounted on the second upright 103 or the auxiliary frame 104. The second wheel 202 is positioned close to the end of the second upright 103 that is furthest from the base frame 101. A second gap is provided between the position of the second wheel 202 furthest from the bearing plane and the bearing plane. The second gap is not greater than the second height to ensure that the second wheel 202 is located within the installation space.

[0065] The first gap is greater than the second gap, so that a height difference is formed between the first wheel 201 and the second wheel 202, so that the pedal assembly 500 can simulate the climbing angle when moving between the first wheel 201 and the second wheel 202.

[0066] Reference Appendix Figure 1 and Figure 2 In some embodiments, at least one second wheel set 400 is rotatably mounted on the base frame assembly 100. The second wheel set 400 is connected to the transmission member 300 and rotates simultaneously with the two first wheel sets 200. The second wheel set 400 is located on the side of the two first wheel sets 200 that is close to the bearing plane. When the second wheel set 400 is positioned closer to the bearing plane, the circumference of the transmission member 300 increases.

[0067] Specifically, at least one second wheel set 400 is rotatably mounted on the base frame assembly 100 and located on the side of the two first wheel sets 200 near the bearing plane. The second wheel set 400 includes, but is not limited to, a sprocket. The second wheel set 400 is connected to the transmission component 300. Based on the connection of the transmission component 300, the second wheel set 400 and the two first wheel sets 200 rotate simultaneously. The second wheel set 400 and the two first wheel sets 200 also support the transmission component 300 in opposite directions to achieve stable cyclic movement.

[0068] When the circumference of the transmission component 300 increases, the height difference between the two first wheel sets 200 remains unchanged, which will cause the transmission of the transmission component 300 to be loose and unstable. If the height difference between the two ends of the base frame assembly 100 is increased to increase the height difference between the two first wheel sets 200, the overall footprint of the stair machine will increase, wasting too much space resources.

[0069] By setting the second wheel set 400 to support the loose transmission component 300, the circumference of the transmission component 300 can be increased without changing the height difference between the two ends of the base frame assembly 100, thereby increasing the pedal depth and ensuring the stable transmission function of the transmission component 300, while saving space resources.

[0070] The second wheel assembly 400 is positioned to match the circumference of the transmission component 300. As the second wheel assembly 400 is positioned closer to the bearing plane, the circumference of the transmission component 300 increases.

[0071] When the circumference of the transmission component 300 increases, the position of the second wheel set 400 is adaptively moved away from the first wheel set 200 and closer to the bearing plane. This avoids the problem of transmission loosening caused by the lack of stable support after the circumference of the transmission component 300 increases, which would cause unstable meshing between the first wheel set 200 and the transmission component 300. This achieves a stable support effect for the transmission component 300 after the circumference increases.

[0072] In some embodiments, a third gap is provided between the second wheel group 400 and the bearing plane, the third gap being no greater than the first gap and no less than the second gap.

[0073] Specifically, the second wheel set 400 is rotatably mounted on the first upright 102 or the base frame 101. The second wheel set 400 is located on the side of the first wheel set 200 that is close to the bearing plane. A third gap is provided between the position of the second wheel set 400 that is farthest from the bearing plane and the bearing plane.

[0074] The third spacing is not greater than the first spacing and not less than the second spacing, so as to further limit the setting position of the second wheel group 400 to not be higher than the first wheel 201, so as to avoid excessive bending of the transmission component 300 when the pedal assembly 500 moves upward and increase mechanical wear; and the second wheel group 400 is not lower than the second wheel 202, so as to prevent the pedal assembly 500 from deviating from its movement trajectory due to gravity acceleration when it moves downward.

[0075] When the pedal assembly 500 is in the downward phase, gravity will pull the pedal assembly 500. If the second wheel set 400 is lower than the second wheel 202, the transmission component 300 may not be able to maintain sufficient tension, causing the trajectory to deviate. When the pedal assembly 500 is in the upward phase, the transmission component 300 needs sufficient support to avoid excessive bending. If the second wheel set 400 is higher than the first wheel 201, it will not be able to provide sufficient support to the transmission component 300, thereby reducing transmission efficiency and lifespan.

[0076] When the height difference between the first round 201 and the second round 202 is closest to the height difference between the first upright 102 and the second upright 103, the settable area of ​​the second round group 400 is the largest.

[0077] Reference Appendix Figure 2 In some embodiments, the rotation axes of the first wheel set 200 and the second wheel set 400 are parallel to each other and not in the same plane; the two first wheel sets 200 and the second wheel set 400 form a stable triangular support structure to support the pedal assembly 500 for stair climbing training.

[0078] Specifically, the rotation axes of the first wheel set 200 and the second wheel set 400 are parallel to each other, which ensures the stable movement of the transmission component 300 wound around the first wheel set 200 and the second wheel set 400, reduces mechanical wear during meshing, and thus reduces the noise generated during operation.

[0079] By setting the rotation axes of the first wheel set 200 and the second wheel set 400 to be not in the same plane, that is, the first wheel 201 and the second wheel 202 support the transmission component 300 and the pedal assembly 500 on the same plane, while the second wheel set 400 is on another plane to cooperate in adjusting the turning and cyclic position of the transmission component 300 and the pedal assembly 500, mechanical wear is reduced and the transmission component 300 is used for stable transmission.

[0080] The first wheel set 200 and the second wheel set 400 work together to form a stable triangular support structure, which is equipped with a transmission component 300 and a pedal assembly 500 for stable operation and supports heavy users to step on the pedal assembly 500 for stair climbing training.

[0081] Reference Appendix Figure 2 In some embodiments, the first wheel set 200, the second wheel set 400 and the pedal assembly 500 are located opposite each other on both sides of the transmission member 300.

[0082] Specifically, the first wheel set 200 and the second wheel set 400 are rotatably mounted on the base frame assembly 100 and located on the side of the transmission member 300 facing the base frame assembly 100. The pedal assembly 500 is rotatably mounted on the transmission member 300 and located on the other side of the transmission member 300 relative to the first wheel set 200 and the second wheel set 400. The first wheel set 200 and the second wheel set 400 provide stable support for the transmission member 300, so that the transmission member 300 moves stably, thereby causing the pedal assembly 500 on the other side to move stably.

[0083] Reference Appendix Figures 1 to 3 In some embodiments, multiple pedal assemblies 500 are connected end to end and bent to form steps for stair climbing training. The two ends of the pedal assembly 500 are rotatably connected to the transmission member 300. The pedal assembly 500 further includes a first plate 501 and a second plate 502. One end of the first plate 501 is rotatably mounted on the transmission member 300 and is used for stepping on to perform stair climbing training. One end of the second plate 502 is rotatably connected to the other end of the first plate 501 and is rotatably mounted on the transmission member 300. The second plate 502 is used to support the first plate 501.

[0084] Specifically, the first plate 501 and the second plate 502 are hinged to form a pedal assembly 500. The two ends of the pedal assembly 500 are rotatably connected to the transmission component 300. Multiple pedal assemblies 500 are connected end to end and bent to form steps for stair climbing training.

[0085] In this design, the top surface of the first plate 501 serves as the step surface, and the second plate 502 serves as a supporting component for the first plate 501. A second plate 502 separates two adjacent first plates 501.

[0086] When the steps formed by the pedal assembly 500 are descending in a cycle, the user's movement direction is opposite to the cycle direction of the pedal assembly 500. The user continues to descend by stepping on the two adjacent first plates 501 to change their positions for stair climbing training.

[0087] It should be noted that when users are climbing stairs, if the step depth of the first board 501 is less than the length of the user's foot, part of the user's foot will be suspended in the air when stepping on the first board 501, resulting in a poor training experience and the risk of slipping.

[0088] Increasing the tread depth of the pedal assembly 500 means increasing the tread depth of the first plate 501. However, if the tread depth of the first plate 501 is increased while the length of the transmission component 300 between the first plate 501 and the second plate 502 remains unchanged, the included angle between the first plate 501 and the second plate 502 will become smaller. This will lead to an unstable support relationship between the first plate 501 and the second plate 502. When the user steps on the first plate 501, the second plate 502 is likely to rotate relative to it. The second plate 502 will not be able to support the first plate 501 for stepping, and the first plate 501 will easily lift up when stepping.

[0089] Therefore, when the pedal depth of the pedal assembly 500 increases, the length of the transmission component 300 needs to be increased accordingly, thereby increasing the length of the transmission component 300 between the first plate 501 and the second plate 502, and thus avoiding instability in the support relationship between the first plate 501 and the second plate 502.

[0090] Reference Appendix Figure 1 and Figure 3 In some embodiments, when the first plate 501 moves to the side of the first wheel assembly 200 away from the bearing plane, the first plate 501 is parallel to the bearing plane.

[0091] Specifically, after the first plate 501 moves out of the installation space with the transmission component 300 after the turning point at the first wheel 201, the first plate 501 is located on the side of the first wheel group 200 away from the bearing plane. At this time, the first plate 501 is parallel to the bearing plane, so as to provide stable support when the user steps on the top surface of the first plate 501, and avoid the user from stepping unsteadily and causing danger during stair climbing training.

[0092] In some embodiments, the power assembly is mounted on the base frame assembly 100 and connected to the first wheel set 200 and / or the second wheel set 400, for driving the pedal assembly 500 to move through the first wheel set 200 and / or the second wheel set 400.

[0093] Specifically, the power assembly includes a motor and a connector. The input end of the motor is connected to a power source, the output end of the motor is connected to one end of the connector, and the other end of the connector is connected to the first wheel set 200 and / or the second wheel set 400. The motor drives the transmission component 300 through the first wheel set 200 and / or the second wheel set 400, thereby driving the pedal assembly 500 to move through the transmission component 300.

[0094] In some embodiments, the motor is connected to any one of the first wheel 201, the second wheel 202, and the second wheel group 400 via a transmission component, thereby driving the other wheel components to rotate simultaneously via the transmission component 300, and driving the pedal assembly 500 to move via the transmission component 300.

[0095] Specifically, when the motor is connected to the first wheel 201 through the connector, since the first wheel 201, the second wheel 202, the second wheel group 400, and the pedal assembly 500 are all connected to the transmission component 300, the second wheel 202 and the second wheel group 400 are driven to rotate simultaneously through the transmission component 300, and the pedal assembly 500 is driven to move through the transmission component 300.

[0096] In some embodiments, the motor is connected to any two of the first wheel 201, the second wheel 202, and the second wheel group 400 via a transmission component, thereby driving other rotating wheel components to rotate simultaneously via the transmission component 300, and driving the pedal assembly 500 to move via the transmission component 300.

[0097] Specifically, when the motor connects the first wheel 201 and the second wheel 202 through the connector, since the first wheel 201, the second wheel 202, the second wheel group 400, and the pedal assembly 500 are all connected to the transmission component 300, the second wheel group 400 is driven to rotate simultaneously through the transmission component 300, and the pedal assembly 500 is driven to move through the transmission component 300.

[0098] In some embodiments, the motor connects to all components of the first wheel 201, the second wheel 202, and the second wheel assembly 400 via a transmission component, thereby driving the pedal assembly 500 to move via the transmission component 300.

[0099] Specifically, when the motor connects the first wheel 201, the second wheel 202, and the second wheel group 400 through the connector, the pedal assembly 500 of the first wheel 201, the second wheel 202, and the second wheel group 400 are all connected to the transmission component 300, and the pedal assembly 500 is driven to move through the transmission component 300.

[0100] When the motor drives the connecting member to rotate, the connecting member drives the transmission member 300 to move through the first wheel set 200 and / or the second wheel set 400, thereby causing the first wheel set 200 or the second wheel set 400 of the transmission member 300 to rotate simultaneously. In addition, the pedal assembly 500 circulates in and out of the installation space with the transmission member 300. The user steps on the continuously descending pedal assembly 500 to do work upward against his own gravity. Based on the continuous downward circulation of the pedal assembly 500 relative to the base frame assembly 100, the user can never climb to the top of the base frame assembly 100 during the continuous upward process, so that the user can continuously use the stair climber for stair climbing training.

[0101] This application provides a stair climber. By placing at least one second wheel set 400 on the side of two first wheel sets 200 near the bearing plane, and driving the second wheel set 400 and the two first wheel sets 200 to rotate simultaneously via a transmission member 300, the length of the transmission member 300 can be extended while maintaining the height of the stair climber, increasing the tread depth of the tread assembly 500, improving the user experience of the stair climber and saving space. By setting the rotation axes of the two first wheel sets 200 and the second wheel set 400 to be parallel to each other and not in the same plane, the two first wheel sets 200, the second wheel set 400 and the transmission member 300 can be stably coupled and transmitted. The two first wheel sets 200 and the second wheel set 400 form a triangular support structure perpendicular to the bearing plane to stably support the tread assembly 500 for stair climbing training. The distance to the third gap is limited, thereby limiting the position of the second wheel assembly 400, thus preventing excessive bending of the transmission component 300 when the pedal assembly 500 moves upward, and preventing the pedal assembly 500 from deviating from its trajectory due to gravitational acceleration when moving downward; the cooperation of the first plate 501 and the second plate 502 supports the user in stair climbing training; by making the first plate 501 parallel to the bearing plane, the user is prevented from being unstable and dangerous during stair climbing training; the cooperation of the base frame 101, the first upright frame 102 and the second upright frame 103 lays the foundation for the stable movement of the pedal assembly 500; the auxiliary frame 104 keeps the first upright frame 102 and the second upright frame 103 relatively stable; the installation space allows for alternating the footing surface on the pedal assembly 500 used for training, enabling continuous stair climbing training in place.

[0102] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0103] The above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of this application, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in this application.

Claims

1. An elevator for a staircase, characterized in that include: A base frame assembly is disposed on a bearing plane, wherein one end of the base frame assembly is farther from the bearing plane than the other end, so that a height difference is formed between the two ends of the base frame assembly; The first wheel set is rotatably mounted on the base frame assembly near both ends thereof; A transmission component is wound around and connected to the two first wheel sets so that the two first wheel sets rotate simultaneously. The second wheel set, at least one of the second wheel sets, is rotatably mounted on the base frame assembly. The second wheel set is connected to the transmission component and rotates simultaneously with the two first wheel sets. The second wheel set is located on the side of the two first wheel sets closer to the bearing plane, so as to increase the length of the transmission component. A pedal assembly, wherein multiple pedal assemblies are connected end to end and bent to form steps for stair climbing training, and both ends of the pedal assembly are rotatably connected to the transmission component. A power unit, located on the base frame assembly, is used to drive the pedal assembly to move.

2. The stair machine of claim 1, wherein, The rotation axes of the first wheel set and the second wheel set are parallel to each other and are not in the same plane.

3. The stair machine of claim 2, wherein, The first wheel set and the second wheel set form a triangular support structure perpendicular to the bearing plane to stably support the pedal assembly for stair climbing training.

4. The stair machine of claim 1, wherein, The first set of wheels further includes: The first wheel is rotatably mounted on the base frame assembly and connected to the transmission component, and a first gap is provided between the first wheel and the bearing plane; The second wheel is rotatably mounted on the base frame assembly and connected to the transmission component. A second gap is provided between the second wheel and the bearing plane, and the first gap is greater than the second gap.

5. The stair machine of claim 4, wherein, A third gap is provided between the second wheel set and the bearing plane, the third gap being no greater than the first gap and no less than the second gap.

6. The stair machine of claim 1, wherein, The pedal assembly includes: The first plate has two ends rotatably mounted on the transmission component, and the first plate is used for stepping on to perform stair climbing training. The second plate is rotatably connected to the adjacent end of the first plate, and both ends of the second plate are rotatably mounted on the transmission member. The second plate is used to support the first plate.

7. The stair machine of claim 6, wherein, When the first plate moves to the side of the first wheel assembly away from the bearing plane, the first plate is parallel to the bearing plane.

8. Stair machine according to any of claims 1-7, characterized in that The base frame assembly includes: The base frame is disposed on the bearing plane; The first upright frame is fixed at one end of the base frame; The second upright is fixed to the other end of the base frame relative to the first upright. The first upright cooperates with the second upright to form a height difference between the two ends of the base frame. The pedal assembly is located between the first upright and the second upright for use in stair climbing training.

9. The stair machine of claim 8, wherein, The base frame assembly also includes: An auxiliary frame is provided, with its two ends connected to the ends of the first and second uprights away from the base frame, respectively, to keep the first and second uprights relatively stable.

10. The stair machine of claim 9, wherein, The base frame, the first upright frame, the second upright frame, and the auxiliary frame together form an installation space. The first wheel set, the second wheel set, and the transmission component are located within the installation space. The first wheel set and the second wheel set drive the pedal assembly to circulate in and out of the installation space through the transmission component.

Images