Internal magnetic control device and fitness equipment

Abstract

The present invention discloses an internal magnetic control device and a fitness equipment, which relates to the field of fitness equipment. The internal magnetic control device includes a magnetic control housing, two groups of magnetic elements, two swing arms and a driving module. The pivot ends of each swing arm are respectively rotatably mounted on the magnetic control housing. The magnetic elements are respectively arranged on the swing arms. The driving module further includes a driving motor, a power output gear, two lead screws, two threaded sliders and two linkage mechanisms. The power output gear is drivingly connected to the output shaft of the driving motor. The two lead screws are drivingly mounted on both sides of the power output gear. The two lead screws have threads with opposite extending directions. The threaded sliders are connected to the lead screws. One end of the linkage mechanism is drivingly connected to the threaded slider, and the other end is rotatably mounted on the driven end of the swing arm. The two linkage mechanisms have an overlapping part in the height direction.

Description

Technical Field

[0001] The present invention relates to the field of fitness equipment, and particularly to an internal magnetic control device and fitness equipment. Background Art

[0002] Internal magnetic control devices are widely used in various fitness equipment, such as elliptical machines, spinning bikes, etc. Fitness equipment with internal magnetic control devices can meet the needs of users to select different resistance levels according to their physical strength, endurance, and fitness requirements. Taking an elliptical machine as an example, the elliptical machine includes a body bracket, a transmission wheel installed on the body bracket, two pedals for driving the transmission wheel to rotate, a flywheel drivably connected to the transmission wheel, and an internal magnetic control device held inside the flywheel. When a user steps on the pedals, the transmission wheel is driven to rotate relative to the body bracket, the transmission wheel drives the flywheel to rotate, and the flywheel cuts the magnetic induction lines of the internal magnetic control device during the rotation relative to the internal magnetic control device to obtain resistance. Moreover, the mutual distance between the internal magnetic control device and the flywheel is adjustable. When the internal magnetic control device is close to the flywheel, the magnetic resistance received by the flywheel during rotation increases, and the fitness intensity of the user increases. When the internal magnetic control device is far from the flywheel, the magnetic resistance received by the flywheel during rotation decreases, and the fitness intensity of the user decreases.

[0003] Although the existing internal magnetic control devices can meet the requirement that fitness equipment has a certain resistance adjustment function, in the actual use process, due to the limitation of the structure of the existing internal magnetic control devices, the adjustable distance between the internal magnetic control device and the flywheel is small, resulting in a small adjustable range of the resistance of the fitness equipment, and the difference between the highest level and the lowest level of the resistance is not obvious. Even if the user adjusts the resistance level of the exercise equipment, the actual perceived resistance change is not obvious, the exercise process is monotonous, which cannot meet the user's usage expectations and cannot well meet the user's exercise needs. In addition, the resistance adjustment mechanism of the existing exercise equipment has a complex structure, and the precision requirements for the cooperation between multiple components are relatively high. In actual use, the adjustment is often not smooth, and the failure rate of component cooperation is relatively high, which not only affects the user's experience but also increases the user's maintenance cost. Summary of the Invention

[0004] An object of the present invention is to provide an internal magnetic control device and fitness equipment, wherein the distance between the internal magnetic control device and a flywheel installed outside the internal magnetic control device is allowed to be adjusted within a large range, increasing the allowable change range of the resistance received by the flywheel during rotation. In this way, there is an obvious difference between different levels of resistance received by the flywheel, which can not only meet the needs of users for different exercise intensities but also increase the fun of the user during the exercise process, thereby improving the user's experience.

[0005] Another object of the present invention is to provide an internal magnetic control device and a fitness equipment, wherein a driving module of the internal magnetic control device can smoothly drive two swing arms to swing, so as to adjust the relative distance between a set of magnetic control elements of the internal magnetic control device and the flywheel.

[0006] Another object of the present invention is to provide an internal magnetic control device and a fitness equipment, wherein the driving module can reliably drive each of the swing arms to swing.

[0007] Another object of the present invention is to provide an internal magnetic control device and a fitness equipment, wherein the driving module provides two linkage mechanisms, and each of the linkage mechanisms can drive each of the swing arms to swing at a relatively large angle respectively, so that the driving module can smoothly and reliably drive each of the swing arms to swing.

[0008] Another object of the present invention is to provide an internal magnetic control device and a fitness equipment, wherein the two linkage mechanisms have an overlapping part in the height direction, so that the linkage mechanisms can drive the swing arms to swing at a relatively large angle.

[0009] Another object of the present invention is to provide an internal magnetic control device and a fitness equipment, wherein the driving mechanism includes a gear set, two lead screws and two threaded sliders. The two lead screws are held on both sides of the gear set, the threaded sliders are respectively arranged on the lead screws, and the linkage mechanisms are rotatably connected to the threaded sliders. The lead screws have threads extending in opposite directions. The gear set can drive the two lead screws to rotate simultaneously. While the two lead screws are rotating, the threaded sliders move in the extending direction of the threads of the lead screws, driving the ends of the linkage mechanisms to approach or move away from each other, so as to make each of the swing arms swing.

[0010] Another object of the present invention is to provide an internal magnetic control device and a fitness equipment, wherein the linkage mechanism of the driving mechanism has an avoidance groove, and the linkage mechanism can avoid the assembly of the swing arms during the process of driving the swing arms to swing. In this way, not only can the driving module smoothly drive the linkage mechanism to move, but also the linkage mechanism can drive the swing arms to swing at a relatively large angle.

[0011] According to one aspect of the present invention, the present invention provides an internal magnetic control device, which includes:

[0012] A magnetic control housing;

[0013] Two sets of magnetic elements;

[0014] Two swing arms, wherein the pivot ends of each of the swing arms are respectively rotatably installed on the edge of the magnetic control housing, and each set of the magnetic elements is respectively arranged on each of the swing arms; and

[0015] A driving module, wherein the driving module is installed on the magnetron housing, and the driving module further includes a driving motor, a power output gear, two lead screws, two threaded sliders and two linkage mechanisms. The power output gear is drivably connected to the output shaft of the driving motor. The two lead screws are drivably installed on both sides of the power output gear. The two lead screws have threads with opposite extending directions. The threaded sliders are threadedly connected to the lead screws. One end of each linkage mechanism is respectively drivably connected to the threaded slider, and the other end of each linkage mechanism is respectively rotatably installed on the driven end of each swing arm. The two linkage mechanisms have an overlapping part in the height direction.

[0016] According to an embodiment of the present invention, the driving module further includes at least one transmission gear, wherein the transmission gear meshes with the output shaft of the driving motor and the power output gear.

[0017] According to an embodiment of the present invention, the inner magnetron device further includes two assembly bodies. The linkage mechanism has an avoidance groove. The assembly body is arranged at the driven end of the swing arm, and the linkage mechanism is rotatably installed on the assembly body in a manner that the avoidance groove is close to the assembly body.

[0018] According to an embodiment of the present invention, there is a gap between the two linkage mechanisms.

[0019] According to an embodiment of the present invention, the magnetron housing has a housing space and a peripheral opening communicating with the housing space. The driving module is installed in the housing space of the magnetron housing, and each swing arm is allowed to swing at the peripheral opening of the magnetron housing.

[0020] In another aspect of the present invention, the present invention provides a fitness equipment, which includes an equipment rack, a pedaling device, a flywheel and an inner magnetron device. The inner magnetron device is installed on the equipment rack. The pedaling device is pedalably installed on the equipment rack. The flywheel is rotatably installed on the equipment rack and is drivably connected to the pedaling device, and the flywheel surrounds the outside of the inner magnetron device. The inner magnetron device further includes:

[0021] A magnetron housing;

[0022] Two sets of magnetic elements;

[0023] Two swing arms, wherein the pivot ends of each swing arm are respectively rotatably installed on the edge of the magnetron housing, and each set of magnetic elements is respectively arranged on each swing arm; and

[0024] A driving module, wherein the driving module is installed in the magnetron housing, and the driving module further includes a driving motor, a power output gear, two lead screws, two threaded sliders and two linkage mechanisms. The power output gear is drivingly connected to the output shaft of the driving motor. The two lead screws are drivingly installed on both sides of the power output gear. The two lead screws have threads with opposite extending directions. The threaded sliders are threadedly connected to the lead screws. One end of each linkage mechanism is drivingly connected to the threaded slider respectively, and the other end of each linkage mechanism is rotatably installed on the driven end of each swing arm respectively. The two linkage mechanisms have an overlapping part in the height direction.

[0025] According to an embodiment of the present invention, the driving module further includes at least one transmission gear, wherein the transmission gear meshes with the output shaft of the driving motor and the power output gear.

[0026] According to an embodiment of the present invention, the internal magnetron device further includes two assembly bodies. The linkage mechanism has an avoidance groove. The assembly body is arranged at the driven end of the swing arm. The linkage mechanism is rotatably installed on the assembly body in such a way that the avoidance groove is close to the assembly body.

[0027] According to an embodiment of the present invention, there is a gap between the two linkage mechanisms.

[0028] According to an embodiment of the present invention, the magnetron housing has a housing space and a peripheral opening communicating with the housing space. The driving module is installed in the housing space of the magnetron housing. Each swing arm is allowed to swing at the peripheral opening of the magnetron housing. Description of the Drawings

[0029] By describing the embodiments of the present application in more detail in conjunction with the drawings, the above and other objects, features and advantages of the present invention will become more obvious. The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the present invention to explain the content of the present invention and do not constitute a limitation to the present invention. In the drawings, the same reference numerals generally represent the same components or steps.

[0030] Figure 1 is a schematic perspective view of a fitness equipment according to a preferred embodiment of the present invention.

[0031] Figure 2 is a schematic application environment diagram of an internal magnetron device according to a preferred embodiment of the present invention.

[0032] Figure 3Schematic perspective view of the inner magnetron device according to a preferred embodiment of the present invention.

[0033] Figure 4 Schematic perspective view of the inner magnetron device according to the above preferred embodiment of the present invention.

[0034] Figure 5A Schematic cross-sectional view of the inner magnetron device according to the above preferred embodiment of the present invention.

[0035] Figure 5B Schematic enlarged view of a partial structure of the inner magnetron device according to the above preferred embodiment of the present invention.

[0036] Figure 6A Schematic exploded view of the inner magnetron device according to the above preferred embodiment of the present invention.

[0037] Figure 6B Schematic enlarged view of a partial structure of the inner magnetron device according to the above preferred embodiment of the present invention.

[0038] Figure 7A Schematic application diagram of the inner magnetron device according to the above preferred embodiment of the present invention.

[0039] Figure 7B Schematic diagram of another application of the inner magnetron device according to the above preferred embodiment of the present invention

[0040] Figure 8A Schematic diagram of a stage in the assembly process of the inner magnetron device according to the above preferred embodiment of the present invention.

[0041] Figure 8B Schematic diagram of another stage in the assembly process of the inner magnetron device according to the above preferred embodiment of the present invention.

[0042] Figure 8C Schematic diagram of another stage in the assembly process of the inner magnetron device according to the above preferred embodiment of the present invention.

[0043] Figure 8D Schematic diagram of another stage in the assembly process of the inner magnetron device according to the above preferred embodiment of the present invention.

[0044] Figure 8E Schematic diagram of another stage in the assembly process of the inner magnetron device according to the above preferred embodiment of the present invention.

[0045] Figure 9A Schematic diagram of a partial structure of the inner magnetron device according to another preferred embodiment of the present invention.

[0046] Figure 9B It is a schematic diagram of a partial structure of the inner magnetic control device according to the above-mentioned preferred embodiment of the present invention. Detailed implementation manners

[0047] Before detailing any embodiment of the present invention, it should be understood that in its application, the present invention is not limited to the details of the construction and arrangement of the components described in the following description or illustrated in the following drawings. The present invention is capable of other embodiments and of being practiced or carried out in various ways. Additionally, it should be understood that the terminology and phrases used herein are for the purpose of description and should not be regarded as restrictive. As used herein, the terms "comprising", "comprises" or "having" and their variants are intended to cover the listed items and their equivalents as well as additional items. Unless otherwise specified or limited, the terms "mounted", "connected", "supported" and "coupled" and their variants are used broadly and cover both direct and indirect mounting, connection, support and coupling. Further, "connected" and "coupled" are not limited to physical or mechanical connection or coupling.

[0048] And, on the one hand, in the disclosure of the present invention, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention; on the other hand, the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "a" should not be construed as limiting the quantity.

[0049] Attached Figure 1 shows a fitness equipment according to a preferred embodiment of the present invention. Attached Figures 2 to 7B shows an inner magnetic control device 100 according to a preferred embodiment of the present invention. The inner magnetic control device 100 is used to provide a magnetic field environment, wherein the fitness equipment applies the inner magnetic control device 100 of the present invention. Attached Figures 8A to 8E shows the assembly process of the inner magnetic control device 100.

[0050] It is worth mentioning that, attached Figure 1 the fitness equipment implemented as an elliptical machine shown is only exemplary and does not limit the specific type of the fitness equipment of the present invention. For example, in other examples of the present invention, the fitness equipment can also be a rowing machine, a spinning bike, etc.

[0051] Refer to attachedFigure 1 and Figure 2 The fitness equipment of the present invention includes the internal magnetic control device 100, an equipment frame 200, a pedaling device 300, and a flywheel 400. The internal magnetic control device 100 is mounted on the equipment frame 200, the pedaling device 300 is pedalably mounted on the equipment frame 200, the flywheel 400 is rotatably mounted on the equipment frame 200 and drivably connected to the pedaling device 300, and the flywheel 400 is disposed around the outer side of the internal magnetic control device 100. When a user continuously pedals the pedaling device 300, driving the flywheel 400 to rotate relative to the internal magnetic control device 100 and the equipment frame 200, the flywheel 400 continuously cuts the magnetic flux lines of the internal magnetic control device 100 and generates a load, thereby enabling the user to achieve fitness through the fitness equipment.

[0052] It is understood that the load obtained by the flywheel 400 when driven to rotate is related to the amount of magnetic flux lines of the internal magnetic control device 100 that the flywheel 400 cuts. Specifically, the more the flywheel 400 cuts the magnetic flux lines of the internal magnetic control device 100 when driven to rotate, the greater the load the flywheel 400 can obtain, and the more effort the user will exert when stepping on the pedaling device 300. Correspondingly, the less the flywheel 400 cuts the magnetic flux lines of the internal magnetic control device 100 when driven to rotate, the smaller the load the flywheel 400 can obtain, and the less effort the user will exert when stepping on the pedaling device 300.

[0053] It is worth mentioning that the load obtained by the flywheel 400 when being driven to rotate is reflected in the resistance value when the user steps on the pedaling device 300. The greater the load obtained by the flywheel 400 when being driven to rotate, the greater the resistance value when the user steps on the pedaling device 300. Correspondingly, the smaller the load obtained by the flywheel 400 when being driven to rotate, the smaller the resistance value when the user steps on the pedaling device 300.

[0054] To meet different user requirements for the load of the flywheel 400 of the fitness equipment, the internal magnetic control device 100 of the present invention is configured to adjust the relative position of the magnetic flux lines and the flywheel 400. As a result, when the magnetic flux lines of the internal magnetic control device 100 are closer to the flywheel 400, the flywheel 400 cuts more of the magnetic flux lines of the internal magnetic control device 100 when driven to rotate. Correspondingly, when the magnetic flux lines of the internal magnetic control device 100 are farther away from the flywheel 400, the flywheel 400 cuts less of the magnetic flux lines of the internal magnetic control device 100 when driven to rotate.

[0055] Therefore, by adjusting the relative positions of the magnetic induction lines of the inner magnetic control device 100 and the flywheel 400, the resistance value when the user steps on the stepping device 300 can be adjusted.

[0056] Specifically, referring to the attached Figures 2 to 7B , the inner magnetic control device 100 includes a magnetic control housing 10, a driving module 20, two swing arms 30, and two groups of magnetic elements 40. The magnetic control housing 10 has a housing space 101 and a peripheral opening 102 communicating with the housing space 101. The driving module 20 is disposed in the housing space 101 of the magnetic control housing 10 to provide driving force. Each swing arm 30 has a pivot end 31 and a driven end 32 corresponding to the pivot end 31. The pivot end 31 of the swing arm 30 is rotatably mounted on the magnetic control housing 10, and the driven end 32 of the swing arm 30 is drivably connected to the driving module 20. The two swing arms 30 are held in the peripheral opening 102 of the magnetic control housing 10 in a symmetric manner. Each group of magnetic elements 40 is respectively disposed on each swing arm 30 to allow each group of magnetic elements 40 to provide a magnetic field environment in the peripheral opening 102 of the magnetic control housing 10. The flywheel 400 can surround the outside of the magnetic control housing 10 of the inner magnetic control device 100, and the peripheral opening 102 of the magnetic control housing 10 corresponds to the inside of the flywheel 400. Thus, when the flywheel 400 is driven to rotate relative to the inner magnetic control device 100, the flywheel 400 can cut the magnetic induction lines of each group of magnetic elements 40 of the inner magnetic control device 100 to obtain a load.

[0057] Preferably, the outer side of each swing arm 30 faces the peripheral opening 102 of the magnetic control housing 10, and each group of magnetic elements 40 is respectively disposed on the outer side of each swing arm 30, so that each group of magnetic elements 40 can be directly exposed to the peripheral opening 102 of the magnetic control housing 10.

[0058] It is worth mentioning that the way of disposing each group of magnetic elements 40 on each swing arm 30 is not limited in the inner magnetic control device 100 of the present invention. For example, in a preferred example of the inner magnetic control device 100 of the present invention, each group of magnetic elements 40 can be disposed on each swing arm 30 by means of glue bonding; in another preferred example of the inner magnetic control device 100 of the present invention, each group of magnetic elements 40 can be disposed on each swing arm 30 by means of embedding.

[0059] It is worth mentioning that the number of magnetic elements 40 in each group of magnetic elements 40 is not limited in the inner magnetic control device 100 of the present invention. For example, in the attachedFigure 6A In this specific example of the internal magnetron device 100 shown, the number of the magnetic elements 40 in each group of the magnetic elements 40 is three, and they are arranged at intervals on the outer side of the swing arm 30.

[0060] Preferably, the swing arm 30 extends bendably between the pivot end 31 and the driven end 32, so that the swing arm 30 is in an arc shape, and thus the shape of the outer side of the swing arm 30 is substantially the same as the shape of the periphery of the magnetron housing 10. Preferably, a group of the magnetic elements 40 is in an arc shape, and the shape of the inner side of a group of the magnetic elements 40 is consistent with the shape of the outer side of the swing arm 30, so as to reliably arrange a group of the magnetic elements 40 on the outer side of the swing arm 30.

[0061] The magnetron housing 10 includes a disc-shaped first housing 11 and a disc-shaped second housing 12. The first housing 11 is provided with a first ring body 111, and the second housing 12 is provided with a second ring body 121. The first housing 11 and the second housing 12 are installed with each other in a manner that the first ring body 111 and the second ring body 121 correspond to each other, so as to form the housing space 101 inside the first ring body 111 and the second ring body 121, and form the peripheral opening 102 outside the first ring body 111 and the second ring body 121.

[0062] Furthermore, a plurality of first mounting posts 112 are provided at the edge of the first housing 11, and a plurality of second mounting posts 122 are provided at the edge of the second housing 12. Each of the first mounting posts 112 of the first housing 11 and each of the second mounting posts 122 of the second housing 12 are installed and supported with each other, so as to prevent the edges of the first housing 11 and the second housing 12 from being deformed. Preferably, screws are allowed to lock the first housing 11 and the second housing 12 at the positions of the first mounting posts 112 of the first housing 11 and the second mounting posts 122 of the second housing 12.

[0063] On opposite sides of the pivot end 31 of the swing arm 30, they are rotatably mounted on the edge of the first housing 11 and the edge of the second housing 12, so as to rotatably mount the pivot end 31 of the swing arm 30 on the edge of the magnetic control housing 10, and the swing arm 30 is allowed to swing at the peripheral opening 102 of the magnetic control housing 10. Each first mounting post 112 of the first housing 11 and each second mounting post 122 of the second housing 12 are located outside the swing arm 30 to limit the amplitude of the outward swing of the swing arm 30. Preferably, the first mounting post 112 of the first housing 11 and the second mounting post 122 of the second housing 12 correspond to the gaps between two adjacent magnetic elements 40 in a set of the magnetic elements 40 to avoid the magnetic elements 40.

[0064] The magnetic control housing 10 further has a central through hole 103, and the housing space 101 is located around the central through hole 103, wherein the mounting shaft of the equipment rack 200 can be mounted in the central through hole 103 of the magnetic control housing 10 to fixedly mount the internal magnetic control device 100 on the equipment rack 200.

[0065] When the user drives the flywheel 400 to rotate relative to the internal magnetic control device 100 by stepping on the stepping device 300 of the fitness equipment, the flywheel 400 can cut the magnetic induction lines of each group of magnetic elements 40 of the internal magnetic control device 100 to obtain a load, so that the user can achieve the purpose of fitness through the fitness equipment.

[0066] When the drive module 20 drives each swing arm 30 to swing relative to the magnetic control housing 10 respectively, each group of swing arms 30 can drive each group of magnetic elements 40 to swing synchronously to change the relative distance between each group of magnetic elements 40 and the flywheel 400. In this way, the relative distance between the magnetic induction lines of the internal magnetic control device 100 and the flywheel 400 is adjusted, so as to adjust the load obtained by the flywheel 400 when it is driven to rotate, and further the resistance value when the user steps on the stepping device 300 can be adjusted.

[0067] For example, referring to the appendix Figure 7A When the drive module 20 drives each swing arm 30 to swing outward to a maximum swing position, the relative distance between each group of magnetic elements 40 and the flywheel 400 is adjusted to the designed minimum value. At this time, the flywheel 400 cuts the magnetic induction lines of each group of magnetic elements 40 the most when it is driven to rotate, and the flywheel 400 can obtain the maximum resistance. Correspondingly, referring to the appendix Figure 7B, when the driving module 20 drives each swing arm 30 to swing inwards to a minimum swing position, the relative distance between each group of magnetic elements 40 and the flywheel 400 is adjusted to the designed maximum value. At this time, when the flywheel 400 is driven to rotate, the amount of magnetic induction lines of each group of magnetic elements 40 cut by the flywheel 400 is the least, and the resistance that the flywheel 400 can obtain is the smallest.

[0068] It can be understood that during the process in which the driving module 20 drives each swing arm 30 to swing from the minimum swing position to the maximum swing position respectively, the amount of magnetic induction lines of each group of magnetic elements 40 cut by the flywheel 400 when the flywheel 400 is driven to rotate gradually increases, so that the resistance that the flywheel 400 can obtain when it is driven to rotate gradually increases. Correspondingly, during the process in which the driving module 20 drives each swing arm 30 to swing from the maximum swing position to the minimum swing position respectively, the amount of magnetic induction lines of each group of magnetic elements 40 cut by the flywheel 400 when the flywheel 400 is driven to rotate gradually decreases, so that the resistance that the flywheel 400 can obtain when it is driven to rotate gradually decreases.

[0069] Reference appendix Figures 6A to 7B , the driving module 20 includes a driving mechanism 21 and two linkage mechanisms 22. One end of each linkage mechanism 22 is respectively drivably connected to the driving mechanism 21, and the other end of each linkage mechanism 22 is respectively rotatably installed at the driven end 32 of each swing arm 30. Among them, the two linkage mechanisms 22 have an overlapping part in the height direction. In this way, when the driving force provided by the driving mechanism 21 is transmitted to each linkage mechanism 22, each linkage mechanism 22 can apply force to each swing arm 30 at a larger angle to drive each swing arm 30 to drive each group of magnetic elements 40 to swing relative to the magnetic control housing 10. Thus: on the one hand, the internal magnetic control device 100 of the present invention can reduce the requirement for the driving force of the driving mechanism 21, which is beneficial to reducing the cost of the internal magnetic control device 100. On the other hand, the internal magnetic control device 100 of the present invention can smoothly drive each swing arm 30 to swing within a larger range, which is beneficial to improving the reliability of the internal magnetic control device 100.

[0070] It is worth mentioning that the way in which the linkage mechanism 22 is rotatably installed at the driven end 32 of the swing arm 30 is not limited in the internal magnetic control device 100 of the present invention. For example, the internal magnetic control device 100 further includes two assembly bodies 50, wherein the end of the linkage mechanism 22 is rotatably installed on the assembly body 50, and the assembly body 50 is arranged at the driven end 32 of the swing arm 30, so as to rotatably install the end of the linkage mechanism 22 at the driven end 32 of the swing arm 30.

[0071] For the sake of easy understanding and description, refer to the attached Figure 7A and Figure 7B , define the two swing arms 30 of the internal magnetron device 100 as a left swing arm 30a and a right swing arm 30b. Correspondingly, define the two linkage mechanisms 22 of the drive module 20 of the internal magnetron device 100 as a left linkage mechanism 22a and a right linkage mechanism 22b. One end of the left linkage mechanism 22a is rotatably mounted on the driven end 32 of the left swing arm 30a, and the other end of the left linkage mechanism 22a extends towards the right swing arm 30b and is drivingly connected to the drive mechanism 21. Correspondingly, one end of the right linkage mechanism 22b is rotatably mounted on the driven end 32 of the right swing arm 30b, and the other end of the right linkage mechanism 22b extends towards the left swing arm 30a and is drivingly connected to the drive mechanism 21, wherein the left linkage mechanism 22a and the right linkage mechanism 22b have an overlapping part in the height direction. For example, in this specific example of the internal magnetron device 100 shown in the attached Figures 2 to 7B , the right linkage mechanism 22b is located above the left linkage mechanism 22a. Of course, it can be understood that in other alternative examples of the internal magnetron device 100 of the present invention, the right linkage mechanism 22b can be located below the left linkage mechanism 22a.

[0072] In other words, the projection of the left linkage mechanism 22a on the magnetron housing 10 and the projection of the right linkage mechanism 22b on the magnetron housing 10 have an overlapping part and present an "X" shape. In this way, the included angle formed by the extension direction of the line connecting the centers of the pivot end 31 and the driven end 32 of the left swing arm 30a and the extension direction of the left linkage mechanism 22a has a large angle, so as to allow the left linkage mechanism 22a to apply force to the left swing arm 30a at a large angle. Correspondingly, the included angle formed by the extension direction of the line connecting the centers of the pivot end 31 and the driven end 32 of the right swing arm 30b and the extension direction of the right linkage mechanism 22b has a large angle, so as to allow the right linkage mechanism 22b to apply force to the right swing arm 30b at a large angle.

[0073] When the driving mechanism 21 outputs power in one direction, the driving mechanism 21 can drive the left linkage mechanism 22a to move towards the direction close to the right swing arm 30b, so as to allow the left linkage mechanism 22a to easily pull the driven end 32 of the left swing arm 30a at a large angle to swing the left swing arm 30a inwards. At the same time, the driving mechanism 21 can drive the right linkage mechanism 22b to move towards the direction close to the left swing arm 30a, so as to allow the right linkage mechanism 22b to easily pull the driven end 32 of the right swing arm 30b at a large angle to swing the right swing arm 30b inwards. Correspondingly, when the driving mechanism 21 outputs power in the reverse direction, the driving mechanism 21 can drive the left linkage mechanism 22a to move away from the right swing arm 30b, so as to allow the left linkage mechanism 22a to easily push the driven end 32 of the left swing arm 30a at a large angle to swing the left swing arm 30a outwards. At the same time, the driving mechanism 21 can drive the right linkage mechanism 22b to move away from the left swing arm 30a, so as to allow the right linkage mechanism 22b to easily pull the driven end 32 of the right swing arm 30b at a large angle to swing the right swing arm 30b outwards.

[0074] Preferably, through this structural design of the internal magnetic control device 100 of the present invention, whether it is during the process that the left linkage mechanism 22a pulls the left swing arm 30a from the maximum swing position to the minimum swing position, or during the process that the left linkage mechanism 22a pushes the left swing arm 30a from the minimum swing position to the maximum swing position, the left linkage mechanism 22a can maintain applying force to the left swing arm 30a at a large angle; correspondingly, whether it is during the process that the right linkage mechanism 22b pulls the right swing arm 30b from the maximum swing position to the minimum swing position, or during the process that the right linkage mechanism 22b pushes the right swing arm 30b from the minimum swing position to the maximum swing position, the right linkage mechanism 22b can maintain applying force to the right swing arm 30b at a large angle.

[0075] Refer to the attached Figures 6A to 7B, the driving mechanism 21 of the driving module 20 includes a driving motor 211, a power output gear 212, two lead screws 213 and two threaded sliders 214. Among them, the driving motor 211 is installed on the second housing 12 of the magnetron housing 10, the power output gear 212 is drivably connected to the driving motor 211, the lead screw 213 is drivably connected to the power output gear 212, the threaded slider 214 is arranged on the lead screw 213, and the two linkage mechanisms 22 are respectively rotatably connected to the two threaded sliders 214.

[0076] The two lead screws 213 held on both sides of the power output gear 212 have external threads with opposite extending directions, and the threaded slider 214 has internal threads adapted to the external threads of the lead screw 213. The threaded slider 214 is drivably installed on the lead screw 213 in such a way that the internal threads are adapted to the external threads of the lead screw 213. The power output gear 212 is meshed with the output shaft 2111 of the driving motor 211. That is to say, in this specific embodiment of the present invention, the output shaft 2111 of the driving motor 211 is a gear output shaft. The driving motor 211 drives the power output gear 212 to rotate, and the lead screws 213 held on both sides of the power output gear 212 rotate following the power output gear 212. The threaded slider 214 sleeved on the lead screw 213 is driven to move along the extending direction of the lead screw 213 to drive each linkage mechanism 22 to move and further drive each swing arm 30 to swing, and the swing amplitudes of each swing arm 30 are the same.

[0077] Preferably, the driving mechanism 21 further includes at least one transmission gear 215, where the transmission gear 215 is arranged between the output shaft 2111 of the driving motor 211 and the power output gear 212, and the transmission gear 215 is meshed with the output shaft 2111 of the driving motor 211 and the power output gear 212. Thus, when the driving motor 211 outputs power in the way that the output shaft 2111 of the driving motor 211 rotates, the power can be transmitted to each linkage mechanism 22 successively through the transmission gear 215 and the power output gear 212 to drive each linkage mechanism 22 to move and further drive each swing arm 30 to swing.

[0078] In this specific embodiment of the present invention, the linkage mechanism 22 has an avoidance groove 2201, and the outer surface of the linkage mechanism 22 is recessed inward to form the avoidance groove 2201, where the outer surface of the linkage mechanism 22 refers to the surface of the linkage mechanism facing the swing arm 30. The avoidance groove 2201 is close to the end of the linkage mechanism 22 connected to the assembly 50, and when the two linkage mechanisms 22 are pulled closer to each other, the assembly 50 can enter the avoidance groove 2201 to avoid hindering the movement of the linkage mechanism 22. In this way, it is not only beneficial for the drive mechanism 21 to smoothly drive the linkage mechanism, but also increases the movement range of the two linkage mechanisms 22, so that the swing arm 30 obtains a larger swing range.

[0079] For the convenience of understanding and description, the two swing arms 30 of the internal magnetic control device 100 are defined as the left swing arm 30a and the right swing arm 30b. The left swing arm 30a has a left pivot end 31a and a left driven end 32a, and the right swing arm 30b has a right pivot end 31a and a right driven end 32b. Correspondingly, the two linkage mechanisms 22 of the drive module 20 of the internal magnetic control device 100 are defined as the left linkage mechanism 22a and the right linkage mechanism 22b. The left linkage mechanism 22a has a left avoidance groove 2201a, and the right linkage mechanism 22b has a right avoidance groove 2201b. The two lead screws 213 of the drive mechanism 21 of the drive module 20 of the internal magnetic control device 100 are defined as a left lead screw 213a and a right lead screw 213b. Correspondingly, the two threaded sliders 214 are a left threaded slider 214a and a right threaded slider 214b. The two assemblies 50 are defined as a left assembly 50a and a right assembly 50b.

[0080] For example, referring to Figure 7A, when the drive motor 211 outputs power in the manner that the output shaft 2111 of the drive motor 211 rotates in the reverse direction, the power can sequentially pass through the transmission gear 215 and the power output gear 212 to drive the transmission gear 215 and the power output gear 212 to rotate synchronously and in the reverse direction. At this time, the left lead screw 213a and the right lead screw 213b located on the left side of the power output gear 212 are driven to rotate synchronously and in the reverse direction. The left threaded slider 214a mounted on the left lead screw 213a moves to the right along the left lead screw 213a, and at the same time, the right threaded slider 214b mounted on the right lead screw 213b moves to the left. The left pivot end 31a of the left swing arm 30a and the right pivot end 31b of the right swing arm 30b rotate relative to the magnetic control housing 10 at the same time. The left linkage mechanism 22a pulls the left driven end 32a of the left swing arm 30a to move to the left, and the right linkage mechanism 22b pulls the right driven end 32b of the right swing arm 30b to move to the right. In this way, the magnetic element 40 of the inner magnetic control device 100 moves away from the flywheel 400, the left swing arm 30a and the right swing arm 30b can move from the minimum swing position to the maximum swing position, and the magnetic resistance of the flywheel 400 when rotating relative to the inner magnetic control device 100 increases.

[0081] Refer to Figure 7B , when the drive motor 211 outputs power in the manner that the output shaft 2111 of the drive motor 211 rotates in the forward direction, the power can sequentially pass through the transmission gear 215 and the power output gear 212 to drive the transmission gear 215 and the power output gear 212 to rotate synchronously and in the forward direction. At this time, the left lead screw 213a and the right lead screw 213b located on the left side of the power output gear 212 are driven to rotate synchronously and in the forward direction. The left threaded slider 214a mounted on the left lead screw 213a moves to the left along the left lead screw 213a, and at the same time, the right threaded slider 214b mounted on the right lead screw 213b moves to the right. The left pivot end 31a of the left swing arm 30a and the right pivot end 31b of the right swing arm 30b rotate relative to the magnetic control housing 10 at the same time. The left linkage mechanism 22a pulls the left driven end 32a of the left swing arm 30a to move to the right, and the right linkage mechanism 22b pulls the right driven end 32b of the right swing arm 30b to move to the left. In this way, the magnetic element 40 of the inner magnetic control device 100 moves away from the flywheel 400, the left swing arm 30a and the right swing arm 30b can move from the maximum swing position to the minimum swing position, so that the magnetic resistance of the flywheel 400 when rotating relative to the inner magnetic control device 100 decreases.

[0082] In this embodiment of the present invention, when the left swing arm 30a and the right swing arm 30b move to the minimum swing position, the left assembly 50a enters the right avoidance groove 2201b of the right linkage mechanism 22b, and the right assembly 50b enters the left avoidance groove 2201a of the left linkage mechanism 22a.

[0083] It is worth mentioning that the output shaft 2111 of the drive motor 211 can directly drive the power output gear 212 to rotate, or can drive the power output gear 212 to rotate through at least one transmission gear 215, and the specific number of the transmission gears 215 is not limited. Those skilled in the art should understand that the specific implementation manners of the drive mechanism 21 disclosed in the specification drawings and the text are only examples and cannot limit the content and scope of the internal magnetic control device 100 of the present invention.

[0084] Preferably, there is a gap between the two linkage mechanisms 22 arranged up and down to avoid friction between the two linkage mechanisms 22. In this way: on the one hand, the drive mechanism 21 can smoothly drive each swing arm 30 to swing through each linkage mechanism 22; on the other hand, the two linkage mechanisms 22 do not generate friction, thereby avoiding noise generation and wear of the linkage mechanisms 22.

[0085] In Figures 5A to 7B the illustrated embodiment, the drive motor 211 drives the two lead screws 213 to move through the power output gear 212 located between the two lead screws 213, so as to drive each linkage mechanism 22 to move and further drive each swing arm 30 to swing. In Figure 9A and Figure 9B the illustrated embodiment, the drive motor 211 can drive each linkage mechanism 22 to move and further drive each swing arm 30 to swing through the power output gear 212 located on one side of the lead screw 213.

[0086] Specifically, in Figure 9A and Figure 9BIn this specific embodiment shown, the driving mechanism 21 of the driving module 20 further includes a linkage 216. The lead screw 213 has a proximal end 2131 and a distal end 2132. The linkage 216 is located between the proximal ends 2131 of the two lead screws 213 and is connected to the proximal ends 2131 of the two lead screws 213. The power output gear 212 is disposed at the distal end 2132 of one of the lead screws 213. The power output gear 212 is drivingly connected to the output shaft 2111 of the driving motor 211, and the output shaft 2111 is a threaded end.

[0087] When the output shaft 2111 of the driving motor 211 rotates, the power output gear 212 is driven to rotate synchronously, and the two lead screws 213 and the linkage 216 rotate synchronously. At this time, the threaded slider 214 mounted on the lead screw 213 moves along the extending direction of the lead screw 213 to drive each linkage mechanism 22 to move and further drive each swing arm 30 to swing.

[0088] The driving mechanism 21 further includes five spaced-apart support seats 217. The support seats 217 are disposed on the magnetron housing 10. Both ends of the lead screw 213 are rotatably mounted on two spaced-apart support seats 217, and the linkage 216 is rotatably mounted on the support seat 217 located between the two lead screws 213. Optionally, the linkage 216 is suspended between the two lead screws 213 so that the linkage 216 can rotate following the lead screw 213 driven by the power output gear 212 and can drive the other lead screw 213 to rotate at the same time.

[0089] Preferably, in Figure 9A and Figure 9B this specific embodiment shown, the driving motor 211 is implemented as one, and one driving motor 211 is used to drive the two connected lead screws 213 simultaneously.

[0090] Optionally, the driving module 20 includes two driving motors 211 and two power output gears 212. The two lead screws 213 are spaced adjacent to each other at the proximal ends 2131. The two power output gears 212 are respectively disposed at the distal ends 2132 of the two lead screws 213, and the two power output gears 212 are respectively drivingly connected to the output shafts 2111 of the two driving motors 211. The two driving motors 211 are used to drive the two lead screws 213 to rotate respectively, and then drive each linkage mechanism 22 to move and further drive each swing arm 30 to swing.

[0091] Reference Figure 6A and Figure 6B The internal magnetron device 100 further includes a potential control unit 60. The potential control unit 60 includes a circuit board 61 and a slide potentiometer 62. The circuit board 61 is installed in the housing space 101 of the magnetron housing 10. The slide potentiometer 62 further includes a potentiometer body 621 and a slide arm 622 slidably disposed on the potentiometer body 621. The potentiometer body 621 is mounted or soldered to the circuit board 61, and the slide arm 622 is connected to the threaded slider 214. When the threaded slider 214 is driven to move along the lead screw 213, the threaded slider 214 drives the slide arm 622 to move relative to the potentiometer body 621, thus changing the resistance value of the slide potentiometer 62.

[0092] In this specific embodiment of the present invention, the potential control unit 60 further includes an extension arm 63. One end of the extension arm 63 is disposed on the threaded slider 214, and the other end of the extension arm 63 is disposed on the slide potentiometer 62. The extension arm 63 is held between the threaded slider 214 and the slide potentiometer 62 in a manner parallel to the lead screw 213 to allow the lead screw 213 and the threaded slider 214 to be misaligned. The connection manner of the extension arm 63 to the threaded slider 214 and the slide potentiometer 62 is not limited. For example, but not limited to, one end of the extension arm 63 is soldered to the threaded slider 214, and the other end of the extension arm 63 has a mounting groove 630. The slide arm 622 of the slide potentiometer 62 extends to and is held in the mounting groove 630, thus mounting the slide arm 622 of the slide potentiometer 62 on the extension arm 63.

[0093] Optionally, the slide arm 622 of the slide potentiometer 62 is directly mounted on the threaded slider 214, and the manner in which the slide arm 622 is directly mounted on the threaded slider 214 is not limited in the internal magnetron device 100 of the present invention. For example, the mounting groove 630 is formed in the threaded slider 214, and the slide arm 622 of the slide potentiometer 62 extends to and is held in the mounting groove 25 of the threaded slider, thus mounting the slide arm 622 of the slide potentiometer 62 on the threaded slider.

[0094] It can be understood that the resistance value of the sliding potentiometer 62 is related to the position of the threaded slider 214 on the lead screw 213, and the position of the threaded slider 214 on the lead screw 213 determines the position of the magnetic element 40, which in turn determines the load when the flywheel 400 is driven to rotate. In other words, the position of the magnetic element 40 of the internal magnetic control device 100 of the present invention and the load when the flywheel 400 is driven to rotate can be determined by detecting the resistance value of the sliding potentiometer 62. Attached Figures 8A to 8E shows the assembly process of the internal magnetic control device 100 of the present invention.

[0095] Refer to Figure 8A , provide the second housing 12, wherein the second housing 12 is provided with an installation area.

[0096] Refer to Figure 8B , install the drive motor 211 in the installation area of the second housing 12. Preferably, the drive motor 211 is fixed to the installation area of the second housing 12 by welding, screws, bolts or other assembly methods known to those skilled in the art.

[0097] Refer to Figure 8C , first, install the linkage mechanism 22 on the threaded slider 214 and allow the linkage mechanism 22 to rotate relative to the threaded slider 214. Secondly, threadedly connect the two threaded sliders 214 to the two lead screws 213 respectively. Then, fix one end of the two lead screws 213 to the power output gear 212, and rotatably install the other end on the second housing 12, and the lead screw 213 can rotate following the power output gear 212. Further, mesh the power output gear 212 with the transmission gear 215, and mesh the transmission gear 215 with the output shaft 2111 of the drive motor 211. It is worth mentioning that the installation order of the linkage mechanism 22, the threaded slider 214, the lead screw 213, the power output gear 212 and the transmission gear 215 is only an example and cannot limit the content and scope of the internal magnetic control device 100 of the present invention and its assembly method.

[0098] Refer to Figure 8D , first, install the pivot end 31 of the swing arm 30 on the second housing 12 and allow the pivot end 31 of the swing arm 30 to rotate relative to the second housing 12. Secondly, connect the driven end 32 provided on the swing arm 30 to the linkage mechanism 22, and keep the two linkage mechanisms 22 in an "X" shape, and the avoidance groove 2201 of the linkage mechanism 22 is close to the assembly 50 provided at the driven end 32 of the swing arm 30.

[0099] Referring to Figure 8E , the first housing 11 is mounted on the second housing 12 in such a manner that the first mounting posts 112 of the first housing 11 correspond to the second mounting posts 122 of the second housing 12, and the housing space 101 and the peripheral opening 102 are formed between the first housing 11 and the second housing 12, wherein each swing arm 30 is swingably held in the peripheral opening 102 of the magneto - control housing 10. At this time, the first mounting posts 112 of the first housing 11 and the second mounting posts 122 of the second housing 12 limit the amplitude of the outward swing of the swing arm 30. Thus, the internal magneto - control device 100 is assembled.

[0100] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention can have any deformation or modification without departing from the principle.

Claims

1. An internal magnetic control device, characterized in that, Comprising: A magnetron housing; Two sets of magnetic elements; Two swing arms, wherein the pivot ends of each of the swing arms are respectively rotatably mounted on the edge of the magnetron housing, and the two swing arms are symmetrical, and each set of the magnetic elements is respectively disposed on each of the swing arms; And A drive module, wherein the drive module is mounted on the magnetron housing, and the drive module includes at least one drive motor, at least one power output gear, two lead screws, two threaded sliders and two linkage mechanisms. The power output gear is drivably mounted on the output shaft of the drive motor, the lead screw is drivably mounted on the power output gear, the two lead screws have threads with opposite extending directions, the threaded slider on the left is threadedly connected to the lead screw on the left, the threaded slider on the right is threadedly connected to the lead screw on the right, one end of the linkage mechanism on the left is rotatably mounted on the threaded slider on the right, the other end of the linkage mechanism on the left is rotatably mounted on the driven end of the swing arm on the left, one end of the linkage mechanism on the right is rotatably mounted on the threaded slider on the left, the other end of the linkage mechanism on the right is rotatably mounted on the driven end of the swing arm on the right, and the two linkage mechanisms have an overlapping portion in the height direction.

2. The internal magnetron device according to claim 1, wherein the two lead screws are drivably mounted on both sides of the power output gear.

3. The internal magnetron device according to claim 1, wherein the drive module further includes a linkage member, the lead screw has a proximal end and a distal end, the linkage member is located between the proximal ends of the two lead screws and is connected to the proximal ends of the two lead screws, the power output gear is disposed at the distal end of one of the lead screws, and when the drive motor drives the power output gear to rotate, the power output gear drives the linkage member and the two lead screws to rotate.

4. The internal magnetron device according to claim 1, wherein the drive module includes two drive motors and two power output gears, the lead screw has a proximal end and a distal end, the proximal ends of the two lead screws are adjacent to each other, the two power output gears are respectively disposed at the distal ends of the two lead screws, and the two power output gears are respectively drivably connected to the output shafts of the two drive motors.

5. The internal magnetron device according to claim 2, wherein the output shaft of the drive motor is a gear output shaft, and the power output gear is meshed with the output shaft of the drive motor.

6. The internal magnetron device according to claim 3, wherein the output shaft of the drive motor is a threaded output shaft.

7. The internal magnetron device according to any one of claims 1 to 6, wherein the magnetron housing has a housing space and a peripheral opening communicating with the housing space, the drive module is disposed in the housing space of the magnetron housing, and the swing arm is held at the peripheral opening of the magnetron housing.

8. The internal magnetic control device according to any one of claims 1 to 6, wherein the driving module further includes at least one transmission gear, and the transmission gear is engaged with the output shaft of the driving motor and the power output gear.

9. The internal magnetic control device according to any one of claims 1 to 6, wherein the internal magnetic control device further includes two assemblies, the linkage mechanism has an avoidance groove, the assembly is disposed at the driven end of the swing arm, and the linkage mechanism is rotatably mounted on the assembly in a manner that the avoidance groove approaches the assembly.

10. The internal magnetic control device according to any one of claims 1 to 6, wherein there is a gap between the two linkage mechanisms.

11. A fitness equipment, characterized in that, Comprising: An equipment rack; A stepping device; A flywheel; And An internal magnetic control device according to any one of claims 1 to 10, wherein the internal magnetic control device is mounted on the equipment rack, the stepping device is treadably mounted on the equipment rack, the flywheel is rotatably mounted on the equipment rack and is drivingly connected to the stepping device, and the flywheel surrounds the outside of the internal magnetic control device.

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