Resistance clutch structure on running machine

Abstract

The utility model relates to the technical field of fitness equipment, in particular to a resistance clutch structure on a treadmill, which comprises a wheel component rotationally arranged on a frame and connected with a runway, a clutch wheel coaxially arranged with the wheel component, and a clutch transmission device connected with a clutch control component. The clutch wheel is connected with the resistance adjusting mechanism, a clutch assembly is arranged between the clutch wheel and a wheel in the wheel assembly, the clutch transmission device controls the clutch wheel to be close to or away from the wheel in the wheel assembly, and when the clutch wheel is close to the wheel, the clutch wheel is in linkage with the wheel assembly through the clutch assembly. And when the clutch wheel is far away from the wheel, the clutch wheel is separated from the wheel assembly. The scheme has the advantages of being simple in structure, convenient to adjust and good in use experience.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of body -building equipment especially, a kind of resistance on treadmill clutch structure. BACKGROUND

[0002] With the increasingly fierce competition in the market of body-building equipment, manufacturers need to continuously innovate and improve products to attract consumers. Treadmills with resistance clutch structure have become a big selling point of products because of their richer functions and better training effects, which helps to improve product competitiveness and market share. With the improvement of people's health consciousness, the demand for the function of body-building equipment is also increasing. Pure running can no longer meet the needs of some users. Therefore, it has become a trend to set resistance devices on body-building equipment (such as treadmills, elliptical machines and exercise bikes) to improve fitness intensity and achieve better fitness effects. For users who want to exercise at high intensity and high resistance (such as simulated uphill running, sprinting, etc.), increasing the resistance of the running belt through the resistance clutch structure can better exercise leg muscle strength and improve endurance. For people who just want to run slowly or do rehabilitation exercises, reducing the resistance allows the running belt to run more smoothly, making it easier for them to exercise in a comfortable state. In addition, by adjusting the resistance clutch, different road conditions can be simulated, such as running on flat ground or running on a hill with a certain slope. For example, by properly increasing the resistance, a feeling of needing to overcome greater resistance when climbing a hill can be created, making the exercise effect closer to running in outdoor variable road conditions.

[0003] In the prior art, the Chinese invention patent publication with publication number "CN117942527A" discloses a non-powered treadmill, which includes a treadmill main body and a resistance device. This scheme increases the resistance of running through the resistance device, and the resistance device can adjust the size of the running resistance, which can meet the use needs of different users for different running resistance sizes. Further, in this scheme, the clutch can be used to control whether the resistance device provides running resistance to the pulley and the running belt, further improving the applicability of the product in running resistance.

[0004] However, the clutch adjustment structure in the above-mentioned scheme is complex and not convenient for quick and easy adjustment. Such a complex structure not only increases the manufacturing cost of the product, but also may reduce the user's experience. In actual use, users may need to frequently adjust the resistance size, and the complex adjustment structure will make the operation cumbersome, affecting the continuity and effect of exercise. In addition, the complex structure may also increase the difficulty of maintenance and repair, reduce the durability and reliability of the product.

[0005] In view of the above problems, the prior art needs to be improved. SUMMARY

[0006] In order to solve the above problems, the utility model discloses a kind of resistance clutch structure on treadmill, with Simple structure, easy to adjust, the advantage of good user experience.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] A kind of resistance clutch structure on treadmill, technical solutions are as follows: including wheel assembly being rotatably arranged on frame and being connected with running track, and clutch wheel being coaxially arranged with wheel assembly, and clutch transmission device being connected with clutch control component;The clutch wheel is connected with resistance adjusting mechanism, clutch wheel and the wheel in wheel assembly are provided with clutch assembly, clutch transmission device controls the wheel in the wheel assembly of the clutch wheel close or far away, when clutch wheel is close to the wheel, clutch wheel is linked with wheel assembly by clutch assembly;When clutch wheel is far away from the wheel, clutch wheel is disconnected with wheel assembly.

[0009] Further, the application also proposes that the axle of the wheel assembly is movably provided with a clutch bushing, the clutch wheel is rotatably arranged on the clutch bushing through a bearing, and a pressing plate is fixedly connected to the free end of the clutch bushing for limiting the bearing and the clutch wheel.

[0010] Further, the application also proposes that the clutch assembly includes a first grabbing disc fixedly connected to the clutch wheel, a second grabbing disc connected to the wheel, and a clutch elastic return component for driving the first grabbing disc to close to or far away from the second grabbing disc;Under the action of clutch transmission device and clutch elastic return component, the first grabbing disc is close to or far away from the second grabbing disc.

[0011] Further, the application also proposes that the clutch elastic return component is constructed as a compression spring provided on the axle between the first grabbing disc and the second grabbing disc, and the clutch transmission device is constructed as a fork-type clutch device capable of pressing the clutch wheel and the first grabbing disc fixedly connected thereto towards the second grabbing disc.

[0012] Further, the application also proposes that the clutch elastic return component is constructed as a compression spring provided on the axle outside the clutch wheel, and the clutch transmission device is constructed as a traction-type clutch device capable of moving the clutch wheel and the first grabbing disc fixedly connected thereto away from the second grabbing disc.

[0013] Further, the application also proposes that the clutch assembly includes a rubber disc fixedly connected to the clutch wheel or the wheel, and a clutch elastic return component for driving the clutch wheel to close to or far away from the wheel;When the clutch wheel is pressed against the wheel, the clutch wheel and the wheel are synchronously rotated through the rubber disc.

[0014] Further, the clutch wheel is provided with a connecting ring on the inner side; the rubber disc is sleeved on the connecting ring, and the rubber disc is provided in a conical shape, and the end face of the rubber disc facing the wheel is provided as a rough surface; and the end face of the wheel facing the rubber disc is provided with a groove matching the conical shape of the rubber disc.

[0015] Further, the clutch elastic reset component is provided as a compression spring arranged on the axle between the rubber disc and the wheel or between the rubber disc and the clutch wheel; and the clutch transmission device is provided as a fork type clutch device capable of pressing the clutch wheel and the clutch wheel fixed thereto to the wheel.

[0016] Further, the clutch elastic reset component is provided as a compression spring arranged on the axle between the rubber disc and the wheel or between the rubber disc and the clutch wheel; and the clutch transmission device is provided as a fork type clutch device capable of pressing the clutch wheel and the clutch wheel fixed thereto to the wheel.

[0017] Further, the fork type clutch device comprises a clutch fork rotating on the frame, and a pull rod connected to the input end of the clutch fork; and the end of the clutch control component is connected to the pull rod, so that when the pull rod is pulled, the clutch fork rotates along the axis point, and the end of the clutch fork is pressed to the clutch wheel.

[0018] Further, the fork type clutch device comprises a clutch fork rotating on the frame, and a pull rod connected to the input end of the clutch fork; and the end of the clutch control component is connected to the pull rod, so that when the pull rod is pulled, the clutch fork rotates along the axis point, and the end of the clutch fork is pressed to the clutch wheel.

[0019] Further, the resistance adjusting mechanism comprises a flywheel rotating on the frame, and a magnetic control assembly arranged on the frame beside the flywheel; and the flywheel is connected to the clutch wheel through the enhanced transmission assembly.

[0020] Further, the flywheel and the clutch wheel are respectively arranged on the two sides of the frame, the enhanced transmission assembly comprises a first belt wheel assembly and a second belt wheel assembly, the first belt wheel assembly comprises a first belt wheel and a second belt wheel respectively arranged on the two sides of the frame, and a belt wheel shaft connecting the first belt wheel and the second belt wheel; the second belt wheel assembly comprises a third belt wheel and a fourth belt wheel arranged on the same side of the frame, and a belt wheel shaft connecting the third belt wheel and the fourth belt wheel; the first belt wheel is connected to the clutch wheel in synchronization by a belt, the second belt wheel is connected to the third belt wheel in synchronization by a belt, and the fourth belt wheel is connected to a fifth belt wheel on the flywheel in synchronization by a belt.

[0021] From the above, the application provides a resistance clutch structure on a treadmill, which comprises a wheel assembly rotatably arranged on a frame and connected with a running track, a clutch wheel coaxially arranged with the wheel assembly, and a clutch transmission device connected with a clutch control component; the clutch wheel is connected with a resistance adjusting mechanism, and a clutch assembly is arranged between the clutch wheel and a wheel in the wheel assembly; the clutch transmission device controls the clutch wheel to approach or move away from the wheel in the wheel assembly; when the clutch wheel approaches the wheel, the clutch wheel is linked with the wheel assembly through the clutch assembly; when the clutch wheel moves away from the wheel, the clutch wheel is disconnected with the wheel assembly. The resistance is quickly adjusted through the simple clutch structure, and the application has the advantages of simple structure, convenient adjustment and good use experience. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The first structure of the resistance clutch structure provided by the application is a perspective view.

[0023] Figure 2 The first structure of the resistance clutch structure provided by the application is a top view.

[0024] Figure 3 The first structure of the resistance clutch structure provided by the application is an installation explosion view.

[0025] Figure 4 The second structure of the resistance clutch structure provided by the application is a partial explosion view.

[0026] Figure 5 The third structure of the resistance clutch structure provided by the application is a partial explosion view.

[0027] Figure 6 The fourth structure of the resistance clutch structure provided by the application is a perspective view.

[0028] Figure 7 The fourth structure of the resistance clutch structure provided by the application is a top view.

[0029] Figure 8 The fourth structure of the resistance clutch structure provided by the application is an installation explosion view. DETAILED DESCRIPTION

[0030] The embodiments of the application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the application, and cannot be understood as a limitation of the application.

[0031] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0032] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise stated, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.

[0033] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and inclined upward of the first feature above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and inclined downward of the first feature below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0035] As Figures 1-8The embodiment shown relates to a resistance clutch structure on a treadmill, which includes a wheel assembly 11 rotatably arranged on a frame 1 and connected with a running track, a clutch wheel 2 coaxially arranged with the wheel assembly 11, and a clutch transmission device connected with a clutch control component; the clutch wheel 2 is connected with a resistance adjusting mechanism, and a clutch assembly is arranged between the clutch wheel 2 and a wheel 10 in the wheel assembly 11; the clutch transmission device controls the clutch wheel 2 to approach or move away from the wheel 10 in the wheel assembly 11, when the clutch wheel 2 approaches the wheel 10, the clutch wheel 2 is linked with the wheel assembly 11 through the clutch assembly; when the clutch wheel 2 moves away from the wheel 10, the clutch wheel 2 is disconnected with the wheel assembly 11. The technical scheme of the application realizes quick adjustment of the resistance clutch of the treadmill by arranging the clutch wheel 2, the clutch transmission device and the clutch assembly. The clutch wheel 2 is coaxially arranged with the wheel assembly 11, and the clutch control component controls the clutch wheel 2 to approach or move away from the wheel 10 through the clutch transmission device, so as to realize linkage or disconnection of the clutch wheel 2 and the wheel 10. The structure simplifies the complexity of clutch adjustment, so that the user can more conveniently adjust the resistance of the treadmill to meet different exercise requirements. Compared with the prior art, the technical scheme of the application has the advantages of simple structure and convenient adjustment, and can effectively solve the technical problems of complex resistance clutch structure and inconvenient adjustment on the treadmill.

[0036] As Figures 1-3 shown in FIGS. 6-8, the resistance adjusting mechanism includes a flywheel 30 rotatably arranged on the frame 1 and a magnetic control assembly arranged on the frame beside the flywheel 30; the flywheel 30 is connected with the clutch wheel 2 through an enhanced transmission assembly. In a specific scheme, the flywheel 30 and the clutch wheel 2 are respectively arranged on two sides of the frame 1, the enhanced transmission assembly includes a first pulley assembly 300 and a second pulley assembly 301, the first pulley assembly 300 includes a first pulley 31 and a second pulley 32 respectively arranged on two sides of the frame, and a pulley shaft connecting the first pulley 31 and the second pulley 32; the second pulley assembly 301 includes a third pulley 33 and a fourth pulley 34 arranged on the same side of the frame, and a pulley shaft connecting the third pulley 33 and the fourth pulley 34; the first pulley 31 is synchronously connected with the clutch wheel 2 by a belt, the second pulley 32 is synchronously connected with the third pulley 33 by a belt, and the fourth pulley 34 is synchronously connected with a fifth pulley 35 on the flywheel 30 by a belt.

[0037] The above scheme, in the resistance adjusting mechanism, the clutch wheel 2 as the end of the transmission chain, its rotation state is precisely controlled. When the clutch wheel 2 starts to rotate, this action is transmitted synchronously through the belt to the first pulley 31 in the first pulley assembly 300. The first pulley 31 is located on one side of the frame and is directly connected to the clutch wheel 2, ensuring seamless energy transmission. With the rotation of the first pulley 31, the belt further transmits energy to the second pulley 32 located on the other side of the frame. The second pulley 32 is closely connected to the first pulley 31 through a sturdy pulley shaft, ensuring the stability and continuity of transmission. At this time, the rotation of the second pulley 32 marks that the energy has successfully crossed the frame and entered the next stage of the transmission chain. Next, the rotation of the second pulley 32 is transmitted synchronously through the belt to the third pulley 33 in the second pulley assembly 301. The third pulley 33 and the fourth pulley 34 are located on the same side of the frame and are closely connected through another pulley shaft. This design not only enhances the stability of transmission, but also provides convenience for subsequent magnetic resistance adjustment. When the third pulley 33 receives energy and starts to rotate, it again transmits this energy to the fourth pulley 34 through the belt. The fourth pulley 34, as a key link in the transmission chain, is connected to the fifth pulley 35 on the flywheel 30 through the belt. This step marks that the energy has been successfully transmitted from the clutch wheel 2 side to the flywheel 30 side. On the flywheel 30 side, the rotation of the fifth pulley 35 drives the flywheel 30 to work. The flywheel 30, as one of the resistance sources of the transmission system, not only provides continuous resistance to the entire system, but also interacts with the magnetic field beside the flywheel 30 through the magnetic control assembly, forming a adjustable magnetic resistance effect. This magnetic resistance effect not only introduces additional resistance to the transmission system, but also realizes dynamic control of transmission resistance through precise adjustment of the magnetic control assembly.

[0038] It is worth noting that throughout the transmission process, the magnetic control assembly plays a key role, but the magnetic control assembly can adopt the existing scheme on the existing fitness equipment. It accurately adjusts the magnetic field generated by the flywheel 30 according to the actual needs of the transmission system, thereby realizing flexible control of the magnetic resistance effect. The enhancement and adjustment of this magnetic resistance not only improve the stability and response speed of the transmission system, but also enable the entire system to maintain optimal transmission performance when facing different loads or operating conditions. In summary, the resistance adjusting mechanism realizes an efficient, stable and controllable transmission process between the flywheel 30 and the clutch wheel 2 through its unique enhanced transmission assembly design. The significant enhancement of the magnetic resistance not only improves the performance and stability of the transmission system, but also provides strong technical support for its wide application in fitness equipment, power transmission and other fields.

[0039] As Figures 3-5As shown in FIG. 8, the clutch bushing 12 is movably arranged on the axle of the wheel assembly 11, the clutch wheel 2 is rotatably arranged on the clutch bushing 12 through the bearing 13, and the pressing plate 14 is fixedly arranged on the free end of the clutch bushing 12 for limiting the bearing 13 and the clutch wheel 2. In this scheme, the clutch bushing 12 is arranged to enable the clutch wheel 2 to move on the axle, and the rotation of the clutch wheel 2 is realized through the bearing 13. The arrangement of the pressing plate 14 is used to limit the bearing 13 and the clutch wheel 2, so that the clutch wheel 2, the bearing 13, the clutch bushing 12 and the pressing plate 14 are integrated to ensure the stability of the clutch wheel 2 during movement and rotation. This structural design effectively solves the connection and limiting problem between the clutch wheel 2 and the wheel assembly 11, so that the clutch wheel 2 can be stably linked or disconnected with the wheel assembly 11, thereby realizing effective adjustment of the running machine resistance. Specifically, the clutch bushing 12 can be made of metal material to ensure its strength and wear resistance. The bearing 13 can be a rolling bearing or a sliding bearing, and the specific selection depends on the required rotation accuracy and load capacity. The pressing plate 14 can be fixed on the free end of the clutch bushing 12 by bolts or welding, etc. to ensure its stability. In addition, the movement of the clutch bushing 12 can be realized by manual or automatic control, such as through a shift fork type clutch device or a traction type clutch device. Thus, the technical scheme of the present application realizes stable connection and limiting between the clutch wheel 2 and the wheel assembly 11 through the combination design of the clutch bushing 12, the bearing 13 and the pressing plate 14, and solves the problem of complex clutch adjustment structure and inconvenient and quick adjustment in the prior art. Compared with the prior art, the technical scheme of the present application has the advantages of simple structure, convenient adjustment, high stability, etc., and can effectively improve the use experience and fitness effect of the running machine.

[0040] In the figure, the wheel 10 of the wheel assembly 11 is rotatably arranged on the axle through the bearing 13.

[0041] The above clutch assembly can adopt one of the following two implementation schemes:

[0042] The first implementation scheme of the clutch assembly is as shown in FIG. 8, Figure 3 and 4As shown, the clutch assembly includes a first clutch disc 21 fixedly connected with the clutch wheel 2, a second clutch disc 22 connected with the wheel 10, and a clutch elastic return component 23 for driving the first clutch disc 21 to approach or move away from the second clutch disc 22. Under the action of the clutch transmission device and the clutch elastic return component 23, the first clutch disc 21 approaches or moves away from the second clutch disc 22. Specifically, the first clutch disc 21 is fixedly connected with the clutch wheel 2, the second clutch disc 22 is connected with the wheel 10, and the clutch elastic return component 23 drives the first clutch disc 21 to approach or move away from the second clutch disc 22. The clutch elastic return component 23 can be constructed as a compression spring provided on the axle between the first clutch disc 21 and the second clutch disc 22, or a compression spring provided on the axle outside the clutch wheel 2. The clutch transmission device can be constructed as a yoke type clutch device capable of pressing the clutch wheel 2 and the first clutch disc 21 fixedly connected therewith towards the second clutch disc 22, or a traction type clutch device capable of moving the clutch wheel 2 and the first clutch disc 21 fixedly connected therewith away from the second clutch disc 22. In this way, the clutch assembly realizes the linkage or disconnection of the clutch wheel 2 and the wheel 10 through the cooperation of the first clutch disc 21 and the second clutch disc 22. When the clutch transmission device and the clutch elastic return component 23 act together, the first clutch disc 21 and the second clutch disc 22 can stably engage or disengage, thereby realizing effective control of the treadmill resistance clutch structure. This design ensures the stability and reliability of the clutch assembly during engagement and disengagement, and solves the problem of complex and inconvenient adjustment of traditional clutch structures.

[0043] A second embodiment of the clutch assembly is shown in FIG. 2. Figure 5 and 8As shown, the clutch assembly includes a rubber disc 24 fixedly connected with the clutch wheel 2 or the wheel 10, and a clutch elastic reset component 23 for driving the clutch wheel 2 to approach or move away from the wheel 10. When the clutch wheel 2 is pressed against the wheel 10, the rubber disc 24 synchronizes the rotation of the clutch wheel 2 and the wheel 10. The rubber disc 24 is a connecting component, which can be made of rubber or other materials with good friction performance to ensure effective transmission of rotational force when the clutch wheel 2 is pressed against the wheel 10. The shape of the rubber disc 24 can be circular, oval or other suitable shapes, which can be designed according to the contact surface of the clutch wheel 2 and the wheel 10. The thickness and hardness of the rubber disc 24 can be adjusted according to the required friction force and durability. The clutch elastic reset component 23 can be a spring, elastic sheet or other elastic mechanical component for driving the clutch wheel 2 to approach or move away from the wheel 10 under the action of the clutch transmission device. The spring force of the clutch elastic reset component 23 can be adjusted according to the contact pressure between the clutch wheel 2 and the wheel 10 to ensure that the clutch wheel 2 can effectively press against or disengage from the wheel 10. The technical solution of the present application realizes the direct connection between the clutch wheel 2 and the wheel 10 through the fixed connection of the rubber disc 24 with the clutch wheel 2 or the wheel 10. The function of the clutch elastic reset component 23 is to drive the clutch wheel 2 to approach or move away from the wheel 10, thereby controlling the linkage or disconnection of the clutch wheel 2 and the wheel 10. When the clutch wheel 2 is pressed against the wheel 10, the rubber disc 24 synchronizes the rotation of the clutch wheel 2 and the wheel 10, thereby realizing the adjustment of the treadmill resistance. This design simplifies the clutch structure and makes the adjustment more convenient and fast. Compared with the prior art, the technical solution of the present application has the advantages of simple structure, convenient adjustment and high reliability, and can effectively solve the technical problems of complex clutch structure and inconvenient adjustment of the treadmill resistance.

[0044] In a specific embodiment, a connecting ring 20 is constructed on the inner side of the clutch wheel 2; a rubber disc 24 is sleeved on the connecting ring 20, the rubber disc 24 is constructed as a frustum, and the end face of the rubber disc 24 facing the wheel 10 is constructed as a rough surface; the end face of the wheel 10 facing the rubber disc 24 is constructed as a groove matching the frustum of the rubber disc 24. Among them, the connecting ring 20 provides a stable connection point, so that the rubber disc 24 can be closely sleeved on the clutch wheel 2, thereby enhancing the connection strength between the two. The frustum design of the rubber disc 24 not only increases the contact area with the wheel 10, but also further improves the stability of the connection by matching its shape with the groove on the wheel 10. The rough surface on the rubber disc 24 cooperates with the groove on the wheel 10 to increase the friction force, effectively preventing the occurrence of slipping. The rough surface can be formed by special treatment on the surface of the rubber disc 24, such as sanding or adding texture, to increase the friction coefficient. The groove on the wheel 10 can be formed by precision machining to ensure that its shape and size are accurately matched with the frustum of the rubber disc 24. Thus, by constructing the connecting ring 20, the frustum rubber disc 24, and the design of the rough surface and the groove, the connection stability between the clutch wheel 2 and the wheel 10 is significantly enhanced. Specifically, the connecting ring 20 enables the rubber disc 24 to be stably sleeved on the clutch wheel 2, the frustum design of the rubber disc 24 increases the contact area, and the cooperation of the rough surface and the groove further improves the friction force to prevent slipping. These technical features work together to solve the problem of unstable connection and easy slipping between the clutch wheel 2 and the wheel 10, and improve the reliability and stability of the treadmill resistance clutch structure. Compared with the prior art, the technical scheme of the present application is more concise in structure and more convenient to operate, can quickly and effectively adjust the clutch state, and improves the user experience.

[0045] The above-mentioned clutch transmission device also has the following two embodiments, including a fork type clutch device and a traction type clutch device:

[0046] As Figures 1-3As shown in FIG. 5, the shift fork type clutch device includes a clutch shift fork 41 rotating on the frame 1, and a pull rod 42 connected to the input end of the clutch shift fork 41; the end of the clutch control component is connected to the pull rod 42, and the clutch control component can be a clutch control handle arranged at the upper end of the stand. When the pull rod 42 is pulled, the clutch shift fork 41 rotates along its axis point, and the end of the clutch shift fork 41 is pressed against the clutch wheel 2. Specifically, the rotary motion of the clutch shift fork 41 is achieved through the driving of the pull rod 42, and the pull rod 42 is connected with the clutch control component, so that the clutch operation is more direct and fast. The end of the clutch shift fork 41 is directly pressed against the clutch wheel 2, which ensures the stability and reliability of the clutch action. As a preferred embodiment, the axis point of the clutch shift fork 41 can be arranged at a fixed position of the frame 1 to ensure the stability and accuracy of rotation. The pull rod 42 can be made of metal material to improve the durability and response speed. The clutch control component can be a manually operated lever or an electrically controlled actuator to adapt to different use scenarios and needs. Thus, the technical scheme realizes the pressing or releasing of the clutch wheel 2 through the rotary motion of the clutch shift fork 41, thereby solving the technical problem of quick and stable clutching between the clutch wheel 2 and the wheel assembly 11 on the treadmill. Compared with the prior art, the scheme simplifies the structure of the clutch operation, improves the convenience and response speed of the operation, and ensures the stability and reliability of the clutch action. By directly pressing the end of the clutch shift fork 41 against the clutch wheel 2, complex transmission mechanisms are avoided, the failure rate and maintenance cost are reduced, and the overall performance and user experience of the product are improved.

[0047] When the shift fork type clutch device is adopted, the clutch elastic reset component 23 needs to work in cooperation. As shown in FIG. 6, the clutch elastic reset component 23 is arranged on the frame 1, and the end of the clutch control component is connected to the pull rod 42. When the pull rod 42 is pulled, the clutch shift fork 41 rotates along its axis point, and the end of the clutch shift fork 41 is pressed against the clutch wheel 2. Specifically, the rotary motion of the clutch shift fork 41 is achieved through the driving of the pull rod 42, and the pull rod 42 is connected with the clutch control component, so that the clutch operation is more direct and fast. The end of the clutch shift fork 41 is directly pressed against the clutch wheel 2, which ensures the stability and reliability of the clutch action. As a preferred embodiment, the axis point of the clutch shift fork 41 can be arranged at a fixed position of the frame 1 to ensure the stability and accuracy of rotation. The pull rod 42 can be made of metal material to improve the durability and response speed. The clutch control component can be a manually operated lever or an electrically controlled actuator to adapt to different use scenarios and needs. Thus, the technical scheme realizes the pressing or releasing of the clutch wheel 2 through the rotary motion of the clutch shift fork 41, thereby solving the technical problem of quick and stable clutching between the clutch wheel 2 and the wheel assembly 11 on the treadmill. Compared with the prior art, the scheme simplifies the structure of the clutch operation, improves the convenience and response speed of the operation, and ensures the stability and reliability of the clutch action. By directly pressing the end of the clutch shift fork 41 against the clutch wheel 2, complex transmission mechanisms are avoided, the failure rate and maintenance cost are reduced, and the overall performance and user experience of the product are improved. Figure 3As shown, when cooperating with the first clutch assembly, the clutch elastic return component 23 is configured as a compression spring arranged on the axle between the first and second gripping discs 21 and 22, and the clutch transmission device is configured as a yoke type clutch device capable of pressing the clutch wheel 2 and the first gripping disc 21 fixed thereto towards the second gripping disc 22. Specifically, the compression spring is arranged on the axle between the first and second gripping discs 21 and 22, and functions to elastically separate the first and second gripping discs 21 and 22, so that they are kept disengaged when not subjected to external force. The yoke type clutch device is designed to effectively press the clutch wheel 2 and the first gripping disc 21 fixed thereto towards the second gripping disc 22, thereby realizing the linkage between the clutch wheel 2 and the wheel 10. Thus, the technical scheme cooperates the yoke type clutch device and the compression spring, not only simplifies the structure of the clutch transmission device, but also improves the reliability and efficiency of the clutch operation. Specifically, the arrangement of the compression spring enables the first and second gripping discs 21 and 22 to automatically disengage when not subjected to external force, avoiding unnecessary friction and wear. The yoke type clutch device is designed to quickly and accurately press the clutch wheel 2 and the first gripping disc 21 fixed thereto towards the second gripping disc 22, ensuring the effective engagement between the clutch wheel 2 and the wheel 10. Compared with the prior art, the technical scheme has the advantages of simple structure, reliable operation, high efficiency, etc., and can effectively solve the design problems of the clutch transmission device and the clutch elastic return component 23 in the treadmill resistance clutch structure.

[0048] As Figure 5As shown, in cooperation with the second clutch assembly, the clutch elastic return component 23 is configured as a compression spring arranged on the axle between the rubber disc 24 and the wheel 10 or between the rubber disc 24 and the clutch wheel 2, and the clutch transmission device is configured as a yoke type clutch device capable of pressing the clutch wheel 2 and the wheel 10 connected thereto. The clutch elastic return component 23 is arranged in the form of a compression spring on the axle between the rubber disc 24 and the wheel 10 or between the rubber disc 24 and the clutch wheel 2, and the compression spring is used to separate the rubber disc 24 and the wheel 10 or the clutch wheel 2 not connected thereto, that is, to separate the two. The yoke type clutch device can effectively press the clutch wheel 2 towards the wheel 10 through its structural design, ensuring the linkage between the clutch wheel 2 and the wheel 10. The elastic force of the compression spring can be realized by adjusting the material, diameter, length and other parameters of the compression spring to achieve different reset effects. Thus, the technical scheme of the present application realizes the quick and convenient clutch adjustment between the clutch wheel 2 and the wheel 10 by configuring the clutch elastic return component 23 as a compression spring arranged on the axle between the rubber disc 24 and the wheel 10 or between the rubber disc 24 and the clutch wheel 2, and configuring the clutch transmission device as a yoke type clutch device. The compression spring is used to separate the rubber disc 24 and the wheel 10 or the clutch wheel 2 not connected thereto, that is, to separate the two. The yoke type clutch device can effectively press the clutch wheel 2 towards the wheel 10 through its structural design, ensuring the linkage between the clutch wheel 2 and the wheel 10. Through the cooperation of the yoke type clutch device and the compression spring, not only the structure of the clutch transmission device is simplified, but also the reliability and efficiency of the clutch operation are improved. Compared with the prior art, the technical scheme of the present application is simpler in structure and more convenient in operation, and can effectively solve the technical problems of complex structure and inconvenient adjustment of the treadmill resistance clutch.

[0049] As Figure 4,6~8, the traction type clutch device includes a pull rope seat 43 fixed on the frame, and a traction pull rope 44 connected with the clutch control component. The clutch control component can be a clutch control handle arranged at the upper end of the stand. The end of the traction pull rope 44 passes through the pull rope seat 43 and is connected with the pressing plate 14; the clutch elastic return component 23 presses the pressing plate 14; when the traction pull rope 44 pulls the pressing plate 14, the clutch wheel 2 is separated from the wheel 10; when the traction force is removed, the clutch elastic return component 23 presses the clutch wheel 2 to the wheel 10 to make them rotate synchronously. The traction type clutch device in this scheme presents an innovative clutch mechanism, the core components of which include the pull rope seat 43 stably installed on the frame, and the traction pull rope 44 closely connected with the clutch control component. The end of the traction pull rope 44 is ingeniously passed through the pull rope seat 43 to achieve reliable connection with the pressing plate 14. At the same time, the clutch elastic return component 23 plays an important role, which tightly presses the pressing plate 14 to ensure the stability of the device in the inactive state. Specifically, when the clutch control component applies tension to the pressing plate 14 through the traction pull rope 44, this action triggers the separation mechanism of the clutch wheel 2, making it contact with the wheel 10, thereby realizing the disconnection of the clutch. Conversely, as soon as the traction force is removed, the clutch elastic return component 23 immediately exerts its elastic return function, pushing the pressing plate 14 and then tightly pressing the clutch wheel 2 to the wheel 10, prompting them to restore the synchronous rotation state. As an optimized design strategy, the pull rope seat 43 is fixed on the frame, providing a stable fulcrum for the traction pull rope 44 and ensuring the accuracy and stability of the clutch operation. The use of the traction pull rope 44 not only simplifies the complexity of the clutch operation, but also significantly improves the response speed and flexibility of the operation. The design of the clutch elastic return component 23 further enhances the reliability and automatic reset capability of the clutch action. In summary, the traction type clutch device realizes fast and stable clutch control between the clutch wheel 2 and the wheel 10 through the traction and release of the traction pull rope 44 and the cooperation of the clutch elastic return component 23. Compared with traditional technology, this scheme not only simplifies the clutch structure and improves the convenience of operation, but also ensures the stability and reliability of the clutch action. Through the direct and efficient clutch mechanism, the failure rate is reduced and the maintenance cost is reduced, thereby comprehensively improving the overall performance of the product and the user experience.

[0050] When the traction type clutch device is used, the clutch elastic return component 23 needs to work in cooperation. As shown in Figure 4As shown, when cooperating with the first clutch assembly, the clutch elastic return component 23 is configured as a compression spring arranged on the axle outside the clutch wheel 2, and the clutch transmission device is configured as a traction type clutch device capable of separating the clutch wheel 2 and the first grab disc 21 fixedly connected thereto from the second grab disc 22. Specifically, the clutch elastic return component 23 is a compression spring arranged on the axle outside the clutch wheel 2, which provides an elastic force to enable the clutch wheel 2 to maintain the combined state with the wheel 10 when not subjected to external force. The traction type clutch device overcomes the elastic force of the compression spring by applying external force to separate the clutch wheel 2 from the wheel 10. When the traction rope 44 pulls the pressing plate 14, the clutch wheel 2 is separated from the wheel 10; when the traction force is removed, the compression spring presses the clutch wheel 2 towards the wheel 10 to make them rotate synchronously. As a preferred embodiment, the traction type clutch device can also include other forms of traction mechanism, such as traction device driven by motor or traction device realized by hydraulic or pneumatic system. These variants can all realize the separation and combination of the clutch wheel 2 and the wheel 10, and have different applicable scenarios and advantages. Thus, the technical solution of the present application realizes the separation and combination of the clutch wheel 2 and the wheel 10 by arranging the clutch elastic return component 23 as a compression spring on the axle outside the clutch wheel 2 and configuring the traction type clutch device. The compression spring provides the necessary elastic force to enable the clutch wheel 2 to maintain the combined state with the wheel 10 when not subjected to external force. The traction type clutch device overcomes the elastic force of the compression spring by applying external force to separate the clutch wheel 2 from the wheel 10. This design makes the resistance adjustment of the treadmill more flexible and reliable, and can meet the exercise needs of different users. Compared with the prior art, the technical solution of the present application has the following advantages: first, the combination of the compression spring and the traction type clutch device realizes the quick and reliable separation and combination of the clutch wheel 2 and the wheel 10, improving the flexibility and accuracy of the resistance adjustment of the treadmill. Second, the structure of the traction type clutch device is simple and convenient to operate, which can quickly respond to the adjustment needs of the user and improve the user experience.

[0051] As Figure 8As shown, when cooperating with the second clutch assembly, the clutch elastic return component 23 is designed as a compression spring on the outer side of the axle of the clutch wheel 2, and the clutch transmission device is designed as a traction type clutch device capable of moving the clutch wheel 2 away from the wheel 10. The technical scheme of the application simplifies the structure of the clutch adjustment by designing the clutch elastic return component 23 as a compression spring on the outer side of the axle of the clutch wheel 2 and using a traction type clutch device to control the movement of the clutch wheel 2. This design enables the clutch wheel 2 to quickly move away from the wheel 10 through the traction type clutch device, achieving rapid adjustment of the resistance of the treadmill. The compression spring ensures that the clutch wheel 2 can automatically reset when not subjected to external force, maintaining contact with the wheel 10. The traction type clutch device overcomes the elastic force of the compression spring by applying external force, causing the clutch wheel 2 and the rubber disc 24 thereon to separate from the wheel 10. The use effect and mode are basically the same as the above-mentioned scheme.

[0052] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] Although the embodiments of the present application have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above-mentioned embodiments without departing from the principles and purposes of the present application within the scope of the present application.

Claims

1. A resistance clutching arrangement on a treadmill, characterized by: The application relates to a vehicle wheel assembly, which comprises a wheel assembly (11) rotatably arranged on a vehicle frame (1) and connected with a track, a clutch wheel (2) coaxially arranged with the wheel assembly (11), and a clutch transmission device connected with the clutch control component; the clutch wheel (2) is connected with a resistance adjusting mechanism, a clutch assembly is arranged between the clutch wheel (2) and the wheel (10) in the wheel assembly (11), and the clutch transmission device controls the clutch wheel (2) to approach or move away from the wheel (10) in the wheel assembly (11); when the clutch wheel (2) approaches the wheel (10), the clutch wheel (2) is connected with the wheel assembly (11) through the clutch assembly; when the clutch wheel (2) moves away from the wheel (10), the clutch wheel (2) is disconnected with the wheel assembly (11).

2. The resistance clutching structure on a treadmill according to claim 1, wherein: A clutch bush (12) is movably arranged on an axle of the wheel assembly (11), the clutch wheel (2) is rotatably arranged on the clutch bush (12) through a bearing (13), and a pressing plate (14) is fixedly connected to a free end of the clutch bush (12) and used for limiting the bearing (13) and the clutch wheel (2).

3. The resistance clutching structure on a treadmill according to claim 2, wherein: The clutch assembly comprises a first grabbing disc (21) fixedly connected with the clutch wheel (2), a second grabbing disc (22) connected with the wheel (10), and a clutch elastic reset component (23) used for driving the first grabbing disc (21) to approach or move away from the second grabbing disc (22); under the action of the clutch transmission device and the clutch elastic reset component (23), the first grabbing disc (21) approaches or moves away from the second grabbing disc (22).

4. The resistance clutching structure on a treadmill according to claim 3, wherein: The clutch elastic reset component (23) is constructed as a compression spring arranged on the axle between the first grabbing disc (21) and the second grabbing disc (22), and the clutch transmission device is constructed as a yoke type clutch device capable of pressing the clutch wheel (2) and the first grabbing disc (21) fixedly connected with the clutch wheel (2) towards the second grabbing disc (22).

5. The resistance clutching structure on a treadmill as set forth in claim 3, wherein: The clutch elastic reset component (23) is constructed as a compression spring arranged on the axle outside the clutch wheel (2), and the clutch transmission device is constructed as a traction type clutch device capable of moving the clutch wheel (2) and the first grabbing disc (21) fixedly connected with the clutch wheel (2) away from the second grabbing disc (22).

6. The resistance clutching structure on a treadmill as set forth in claim 2, wherein: The clutch assembly comprises a rubber disc (24) fixedly connected with the clutch wheel (2) or the wheel (10), and a clutch elastic reset component (23) used for driving the clutch wheel (2) to approach or move away from the wheel (10); when the clutch wheel (2) is pressed against the wheel (10), the clutch wheel (2) and the wheel (10) are synchronously rotated through the rubber disc (24).

7. The resistance clutching structure on a treadmill according to claim 6, wherein: A connecting ring (20) is arranged on the inner side of the clutch wheel (2); the rubber disc (24) is sleeved on the connecting ring (20), the rubber disc (24) is constructed as a frustum, and the end face of the rubber disc (24) towards the wheel (10) is constructed as a rough surface; the end face of the wheel (10) towards the rubber disc (24) is constructed as a groove matched with the frustum of the rubber disc (24).

8. The resistance clutching structure on a treadmill according to claim 6, wherein: The clutch elastic reset component (23) is a compression spring arranged on the axle between the rubber disc (24) and the wheel (10) or between the rubber disc (24) and the clutch wheel (2), and the clutch transmission device is a fork type clutch device capable of pressing the clutch wheel (2) and the clutch wheel (2) fixed thereto towards the wheel (10).

9. The resistance clutching structure on a treadmill as set forth in claim 6, wherein: The clutch elastic reset component (23) is a compression spring arranged on the axle outside the clutch wheel (2), and the clutch transmission device is a traction type clutch device capable of separating the clutch wheel (2) from the wheel (10).

10. The resistance clutching structure on a treadmill according to claim 4 or 8, wherein: The fork type clutch device comprises a clutch fork (41) rotating on the frame (1), and a pull rod (42) connected to the input end of the clutch fork (41); the end of the clutch control component is connected to the pull rod (42), and when the pull rod (42) is pulled, the clutch fork (41) rotates along its axis point, and the end of the clutch fork (41) is pressed towards the clutch wheel (2).

11. The resistance clutching structure on a treadmill according to claim 5 or 9, wherein: The traction type clutch device comprises a pull rope seat (43) fixed on the frame, and a traction pull rope (44) connected to the clutch control component; the end of the traction pull rope (44) passes through the pull rope seat (43) and is connected to the pressing plate (14); the clutch elastic reset component (23) presses the pressing plate (14); when the traction pull rope (44) pulls the pressing plate (14), the clutch wheel (2) is separated from the wheel (10); when the traction force is removed, the clutch elastic reset component (23) presses the clutch wheel (2) towards the wheel (10) to make them rotate synchronously.

12. The resistance clutching structure on a treadmill according to claim 1 or 2, wherein: The resistance adjusting mechanism comprises a flywheel (30) rotating on the frame (1), and a magnetic control assembly arranged beside the flywheel (30) on the frame; the flywheel (30) is connected to the clutch wheel (2) through an enhanced transmission assembly.

13. The resistance clutching structure on a treadmill as set forth in claim 12, wherein: The flywheel (30) and the clutch wheel (2) are respectively arranged on the two sides of the frame (1), and the enhanced transmission assembly comprises a first pulley assembly (300) and a second pulley assembly (301); the first pulley assembly (300) comprises a first pulley (31) and a second pulley (32) respectively arranged on the two sides of the frame, and a pulley shaft connecting the first pulley (31) and the second pulley (32); the second pulley assembly (301) comprises a third pulley (33) and a fourth pulley (34) arranged on the same side of the frame, and a pulley shaft connecting the third pulley (33) and the fourth pulley (34); the first pulley (31) and the clutch wheel (2) are connected by a belt to rotate synchronously, the second pulley (32) and the third pulley (33) are connected by a belt to rotate synchronously, and the fourth pulley (34) and a fifth pulley (35) on the flywheel (30) are connected by a belt to rotate synchronously.

Images