CN217067532U - Internal magnetic control device and fitness equipment - Google Patents

Abstract

The utility model discloses an internal magnetic control device and body-building equipment, which relates to the field of body-building equipment, wherein the internal magnetic control device comprises a magnetic control shell, two groups of magnetic elements, two swing arms and a driving module, the pivoting end of each swing arm is respectively and rotatably installed on the magnetic control shell, the magnetic elements are respectively arranged on the swing arms, the driving module comprises at least one driving motor, at least one power output gear, two lead screws, two thread sliders and two linkage mechanisms, the power output gear is drivably installed on the output shaft of the driving motor, the lead screws are drivably installed on the power output gear, the two lead screws are provided with threads with opposite extending directions, the thread sliders are connected with the lead screws in a threaded manner, one end part of each linkage mechanism is respectively drivably installed on the thread sliders, the other end of each linkage mechanism is rotatably mounted on the driven end of each swing arm.

Description

Internal magnetic control device and fitness equipment

Technical Field

The utility model relates to a body-building apparatus field, in particular to interior magnetic control device and body-building apparatus.

Background

The internal magnetic control device is widely applied to various fitness equipment such as elliptical machines, spinning bicycles and the like, and the fitness equipment applying the internal magnetic control device can meet the requirement that users can select different resistance according to physical strength, endurance and fitness requirements. Taking an elliptical machine as an example, the elliptical machine comprises a machine body bracket, a driving wheel arranged on the machine body bracket, two pedals for driving the driving wheel to rotate, a flywheel connected to the driving wheel in a driving way and an internal magnetic control device kept at the inner side of the flywheel. When a user tramples the pedal, the driving wheel is driven to rotate relative to the machine body support, the driving wheel drives the flywheel to rotate, and the flywheel cuts the magnetic induction lines of the inner magnetic control device in the process of rotating relative to the inner magnetic control device to obtain resistance. And the mutual distance between the internal magnetic control device and the flywheel is allowed to be adjusted, when the internal magnetic control device is close to the flywheel, the magnetic resistance of the flywheel in the rotating process is increased, the body-building intensity of a user is increased, and when the internal magnetic control device is far away from the flywheel, the magnetic resistance of the flywheel in the rotating process is reduced, and the body-building intensity of the user is reduced.

Although the existing inner magnetic control device can meet the requirement that the fitness equipment has a certain resistance adjusting function, in the actual use process, due to the structural limitation of the existing inner magnetic control device, the adjustable distance between the inner magnetic control device and the flywheel is small, so that the adjustable range of the resistance of the fitness equipment is small, 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 sports equipment, the actually perceived resistance changes insignificantly, the exercise process is monotonous, the use expectation of the user cannot be achieved, and the exercise requirement of the user cannot be well met. In addition, the resistance adjusting mechanism of the existing sports equipment is complex in structure, the precision requirement of mutual matching among a plurality of parts is high, in actual use, the adjustment is not smooth frequently, the matching failure rate of parts is high, the use experience of a user is influenced, and the maintenance cost of the user is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an interior magnetic control device and body-building apparatus, wherein interior magnetic control device with install in distance between the flywheel in the interior magnetic control device outside is allowed to adjust at great within range, has increased the resistance that the flywheel received in rotatory process allows the scope of change. Therefore, the flywheel has obvious difference among different levels of resistance, the requirements of users on different exercise strengths can be met, the pleasure of the users in the exercise process can be increased, and the use experience of the users is improved.

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

Another object of the utility model is to provide an interior magnetic control device and body-building apparatus, wherein drive module can reliably hang down the drive every the swing arm swing.

Another object of the present invention is to provide an inner magnetic control device and exercise apparatus, wherein the driving module provides two linkage mechanisms, each linkage mechanism can drive each with a larger angle respectively the swing arm swings, so the driving module can smoothly and reliably drive each the swing arm swings.

Another object of the present invention is to provide an inner magnetic control device and a fitness apparatus, wherein two of the linkage mechanisms have an overlapping portion in the height direction, so that the linkage mechanisms can drive the swing arms to swing at a larger angle.

Another object of the present invention is to provide an internal magnetic control device and a fitness apparatus, wherein the driving mechanism includes a gear set, two lead screws and two thread sliders, wherein two of the lead screws are retained in the two sides of the gear set, the thread sliders are respectively set in the lead screws, the linkage mechanism is rotationally connected to the thread sliders. The screw rod is provided with threads extending towards the opposite direction, the gear set can drive the two screw rods to rotate simultaneously, and when the two screw rods rotate, the thread sliding blocks move towards the extending direction of the threads of the screw rods to drive the end parts of the linkage mechanisms to be close to or far away from each other, so that each swing arm swings.

Another object of the present invention is to provide an inner magnetic control device and a fitness apparatus, wherein the driving mechanism has a dodging groove, the driving mechanism drives the swing arm swing in-process to avoid the assembly of the swing arm. Therefore, the driving module can smoothly drive the linkage mechanism to move, and the linkage mechanism can drive the swing arm to swing at a larger angle.

According to an aspect of the utility model, the utility model provides an interior magnetic control device, it includes:

a magnetic control housing;

two sets of magnetic elements;

the pivoting end of each swing arm is rotatably arranged at the edge of the magnetron shell, and each group of magnetic elements is arranged on each swing arm; and

the driving module is mounted on the magnetron housing and comprises at least one driving motor, at least one power output gear, two lead screws, two thread sliders and two linkage mechanisms, wherein the power output gear is mounted on the output shaft of the driving motor in a driving manner, the lead screws are mounted on the power output gear in a driving manner, the two lead screws are provided with threads with opposite extending directions, the thread sliders are connected to the lead screws in a threaded manner, one end of each linkage mechanism is mounted on the thread sliders in a driving manner, and the other end of each linkage mechanism is mounted on the driven end of each swing arm in a rotatable manner.

According to an embodiment of the invention, two the lead screw is drivably installed in the both sides of power take off gear.

According to the utility model discloses an embodiment, drive module further includes a linkage piece, the lead screw has one near end and one keeps away from the end, the linkage piece is located two lead screws near between the end, and be connected in two the lead screw near the end, power take off gear is set up in one of them the end of keeping away from of lead screw the driving motor drive during power take off gear rotates, power take off gear drives linkage piece and two the lead screw rotates.

According to the utility model discloses an embodiment, drive module includes two driving motor, two the power take off gear, the lead screw has one and keeps away from the end near and one, two the lead screw the near end is close to, two the power take off gear is set up respectively in two the end of keeping away from of lead screw, two the power take off gear is connected in two respectively drivably driving motor the output shaft.

According to the utility model discloses an embodiment, driving motor the output shaft is gear output shaft, power take off gear is meshed driving motor the output shaft.

According to the utility model discloses an embodiment, driving motor the output shaft is the screw thread output shaft.

According to an embodiment of the present invention, two of the interlocking mechanisms have an overlapping portion in the height direction.

According to an embodiment of the present invention, the driving module further comprises at least one transmission gear, wherein the transmission gear is engaged with the driving motor the output shaft and the power take-off gear.

According to the utility model discloses an embodiment, interior magnetic control device further two assemblies, the link gear has one and dodges the recess, wherein the assembly set up in the swing arm driven end, the link gear with dodge the recess and be close to the mode of assembly rotationally install in the assembly.

According to an embodiment of the invention, there is a gap between two of the linkages.

According to another aspect of the utility model, the utility model provides a fitness equipment, it includes:

a device frame;

a treading device;

a flywheel; and

an inner magnet control assembly, wherein the inner magnet control assembly is mounted to the fixture frame, the stepping assembly is treadably mounted to the fixture frame, the flywheel is rotatably mounted to the fixture frame and is drivably coupled to the stepping assembly, and the flywheel surrounds an outer side of the inner magnet control assembly, wherein the inner magnet control assembly further comprises:

a magnetic control housing;

two sets of magnetic elements;

the pivoting end of each swing arm is rotatably arranged at the edge of the magnetron shell, and each group of magnetic elements is arranged on each swing arm; and

the driving module is mounted on the magnetron housing and comprises at least one driving motor, at least one power output gear, two lead screws, two thread sliders and two linkage mechanisms, wherein the power output gear is mounted on the output shaft of the driving motor in a driving manner, the lead screws are mounted on the power output gear in a driving manner, the two lead screws are provided with threads with opposite extending directions, the thread sliders are connected to the lead screws in a threaded manner, one end of each linkage mechanism is mounted on the thread sliders in a driving manner, and the other end of each linkage mechanism is mounted on the driven end of each swing arm in a rotatable manner.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments of the present application when taken in conjunction with the accompanying drawings. The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings, like reference numbers generally represent like parts or steps.

Fig. 1 is a perspective view of an exercise apparatus according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of an application environment of an internal magnetic control device according to a preferred embodiment of the present invention.

Fig. 3 is a schematic perspective view of the inner magnetic control device according to a preferred embodiment of the present invention.

Fig. 4 is a schematic perspective view of the inner magnetic control device according to the above preferred embodiment of the present invention.

Fig. 5A is a schematic cross-sectional view of the inner magnetic control device according to the above preferred embodiment of the present invention.

Fig. 5B is an enlarged schematic view of a partial structure of the inner magnetic control device according to the above preferred embodiment of the present invention.

Fig. 6A is an exploded view of the inner magnetic control device according to the above preferred embodiment of the present invention.

Fig. 6B is an enlarged schematic view of a part of the structure of the inner magnetic control device according to the above preferred embodiment of the present invention.

Fig. 7A is a schematic view of an application of the inner magnetic control device according to the above preferred embodiment of the present invention.

Fig. 7B is a schematic view of another application of the inner magnetic control device according to the above preferred embodiment of the present invention.

Fig. 8A is a schematic view of a stage of the assembly process of the inner magnetic control device according to the above preferred embodiment of the present invention.

Fig. 8B is a schematic view of another stage of the assembly process of the inner magnetic control device according to the above preferred embodiment of the present invention.

Fig. 8C is a schematic view of another stage of the assembly process of the inner magnetic control device according to the above preferred embodiment of the present invention.

Fig. 8D is a schematic view of another stage of the assembly process of the inner magnetic control device according to the above preferred embodiment of the present invention.

Fig. 8E is a schematic view of another stage of the assembly process of the inner magnetic control device according to the above preferred embodiment of the present invention.

Fig. 9A is a schematic view of a partial structure of the inner magnetic control device according to another preferred embodiment of the present invention.

Fig. 9B is a schematic view of a partial structure of the inner magnetic control device according to the above preferred embodiment of the present invention.

Detailed Description

Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless specified or limited otherwise, the terms "mounted," "connected," "supported," and "coupled" and variations thereof are used broadly and encompass both direct mountings and indirect mountings, connections, supports, and couplings. Further, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings.

Also, in the first aspect, in the disclosure of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention; in a second aspect, the terms "a" and "an" should be interpreted as meaning "at least one" or "one or more," i.e., in one embodiment, the number of an element can be one, and in another embodiment, the number of the element can be more than one, and the terms "a" and "an" should not be interpreted as limiting the number.

Fig. 1 shows a body-building apparatus according to a preferred embodiment of the present invention, fig. 2 to 7B show an inner magnetic control device 100 according to a preferred embodiment of the present invention, the inner magnetic control device 100 is used for providing a magnetic field environment, wherein the body-building apparatus is applied with the inner magnetic control device 100, and fig. 8A to 8E show an assembling process of the inner magnetic control device 100.

It should be noted that the exercise apparatus embodied as an elliptical machine shown in fig. 1 is merely exemplary and is not intended to limit the specific type of exercise apparatus of the present invention. For example, in other examples of the present invention, the exercise apparatus may also be a rowing machine, a spinning bike, or the like.

Referring to fig. 1 and 2, the exercise apparatus of the present invention comprises the inner magnetic control device 100, an apparatus frame 200, a pedaling device 300, and a flywheel 400, wherein the inner magnetic control device 100 is installed in the apparatus frame 200, wherein the pedaling device 300 is installed in the apparatus frame 200 in a pedaling manner, wherein the flywheel 400 is rotatably installed in the apparatus frame 200 and is connected to the pedaling device 300 in a driving manner, and the flywheel 400 is disposed to surround the outer side of the inner magnetic control device 100. When the user continuously steps on the stepping device 300 to drive the flywheel 400 to rotate relative to the internal magnetic control device 100 and the equipment rack 200, the flywheel 400 continuously cuts the magnetic induction lines of the internal magnetic control device 100 to obtain a load, so that the user can achieve the purpose of body building through the body building equipment.

It will be appreciated that the load that the flywheel 400 obtains when driven to rotate is related to the amount of magnetic induction lines that the flywheel 400 cuts through the inner magnet control device 100. Specifically, the more the flywheel 400 is driven to rotate, the greater the amount of magnetic induction lines of the inner magnetic control device 100 is cut, the greater the load that can be obtained by the flywheel 400, and at this time, the more effort the user needs to step on the stepping device 300. Accordingly, the smaller the amount of the magnetic induction lines of the inner magnetic control device 100 cut by the flywheel 400 when the flywheel 400 is driven to rotate, the smaller the load that can be obtained by the flywheel 400, and the more labor-saving the user can step on the stepping device 300.

It is worth mentioning that the load obtained by the flywheel 400 when driven to rotate is represented by the resistance value when the user steps on the stepping device 300, and the larger the load obtained by the flywheel 400 when driven to rotate is, the larger the resistance value when the user steps on the stepping device 300 is, and accordingly, the smaller the load obtained by the flywheel 400 when driven to rotate is, the smaller the resistance value when the user steps on the stepping device 300 is.

In order to satisfy different requirements of the user on the load of the flywheel 400 of the exercise device, the inner magnetic control device 100 of the present invention is configured to be able to adjust the magnetic induction lines and the relative position of the flywheel 400, so that when the position of the magnetic induction lines of the inner magnetic control device 100 is closer to the flywheel 400, the flywheel 400 is driven to rotate, the more the magnetic induction lines of the inner magnetic control device 100 are cut, and correspondingly, when the position of the magnetic induction lines of the inner magnetic control device 100 is farther away from the flywheel 400, the less the magnetic induction lines of the inner magnetic control device 100 are cut when the flywheel 400 is driven to rotate. Therefore, by adjusting the relative positions of the magnetic induction lines of the inner magnet control device 100 and the flywheel 400, the resistance value of the user when stepping on the stepping device 300 can be adjusted.

Specifically, referring to fig. 2 to 7B, the internal magnetic control device 100 includes a magnetron housing 10, a driving module 20, two swing arms 30 and two sets of magnetic elements 40, wherein the magnetron housing 10 has a housing space 101 and a peripheral opening 102 communicating with the housing space 101, wherein the driving module 20 is disposed in the housing space 101 of the magnetron housing 10 for providing driving force, wherein each of the swing arms 30 has a pivoting end 31 and a driven end 32 corresponding to the pivoting end 31, the pivoting ends 31 of the swing arms 30 are rotatably mounted to the magnetron housing 10, the driven ends 32 of the swing arms 30 are drivably connected to the driving module 20, and the two swing arms 30 are retained in a mutually symmetric manner at the peripheral opening 102 of the magnetron housing 10, wherein each set of magnetic elements 40 is disposed on each of the swing arms 30, to allow each set of magnetic elements 40 to provide a magnetic field environment at the peripheral opening 102 of the magnetron housing 10. The flywheel 400 can surround the outer side of the magnetron housing 10 of the internal magnetic control device 100, and the peripheral opening 102 of the magnetron housing 10 corresponds to the inner side of the flywheel 400, so that when the flywheel 400 is driven to rotate relative to the internal magnetic control device 100, the flywheel 400 can cut the magnetic induction lines of each set of the magnetic elements 40 of the internal magnetic control device 100 to obtain a load.

Preferably, the outer side of each swing arm 30 faces the peripheral opening 102 of the magnetron housing 10, and each set of the magnetic elements 40 is respectively disposed at the outer side of each swing arm 30, so that each set of the magnetic elements 40 can be directly exposed to the peripheral opening 102 of the magnetron housing 10.

It is worth mentioning that the way in which each group of magnetic elements 40 is provided to each of the swing arms 30 is not limited in the internal magnetic control device 100 of the present invention. For example, in a preferred example of the internal magnetic control device 100 of the present invention, each set of the magnetic elements 40 may be disposed on each of the swing arms 30 by means of glue bonding; in another preferred example of the internal magnetic control device 100 of the present invention, each group of the magnetic elements 40 may be disposed on each of the swing arms 30 by being embedded.

It is worth mentioning that the number of the magnetic elements 40 in each group of the magnetic elements 40 is not limited in the internal magnetic control device 100 of the present invention. For example, in the specific example of the internal magnetic control device 100 shown in fig. 6A, the number of the magnetic elements 40 in each set of the magnetic elements 40 is three, and the three magnetic elements are arranged outside the swing arm 30 at intervals.

Preferably, the swing arm 30 extends between the pivot end 31 and the driven end 32 in a curved manner, so that the swing arm 30 has an arc surface 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, the set of magnetic elements 40 is arc-shaped, and the shape of the inner side of the set of magnetic elements 40 is consistent with the shape of the outer side of the swing arm 30, so as to reliably arrange the set of magnetic elements 40 on the outer side of the swing arm 30.

The magnetron housing 10 includes a disk-shaped first housing 11 and a disk-shaped second housing 12, the first housing 11 is provided with a first ring 111, the second housing 12 is provided with a second ring 121, wherein the first housing 11 and the second housing 12 are mutually mounted in a manner that the first ring 111 and the second ring 121 correspond to each other, so that the housing space 101 is formed inside the first ring 111 and the second ring 121, and the peripheral opening 102 is formed outside the first ring 111 and the second ring 121.

Further, a plurality of first mounting posts 112 are provided on the edge of the first housing 11, a plurality of second mounting posts 122 are provided on the edge of the second housing 12, and each of the first mounting posts 112 of the first housing 111 and each of the second mounting posts 122 of the second housing 12 are mounted and supported to each other to prevent the edge of the first housing 11 and the edge of 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.

Opposite sides of the pivot end 31 of the swing arm 30 are rotatably mounted to the edge of the first housing 11 and the edge of the second housing 12 to rotatably mount the pivot end 31 of the swing arm 30 to the edge of the magnetron housing 10, and the swing arm 30 is allowed to swing from the peripheral opening 102 of the magnetron housing 10, and 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 located outside the swing arm 30 to limit the outward swing amplitude 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 of two adjacent magnetic elements 40 in a set of magnetic elements 40 to avoid the magnetic elements 40.

The magnetron 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 fixture rack 200 can be mounted to the central through hole 103 of the magnetron housing 10 to fixedly mount the internal magnetic control device 100 to the fixture rack 200.

When a user steps on the stepping device 300 of the exercise apparatus to drive the flywheel 400 to rotate relative to the internal magnetic control device 100, the flywheel 400 can cut the magnetic induction lines of each set of the magnetic elements 40 of the internal magnetic control device 100 to obtain a load, so that the user can achieve the purpose of exercise through the exercise apparatus.

When the driving module 20 drives each swing arm 30 to swing relative to the magnetron housing 10, each set of swing arms 30 can drive each set of magnetic elements 40 to swing synchronously, so as to change the relative distance between each set of magnetic elements 40 and the flywheel 400, and thus adjust the relative distance between the magnetic induction line of the inner magnetic control device 100 and the flywheel 400, thereby adjusting the load obtained when the flywheel 400 is driven to rotate, and further adjusting the resistance value of a user when the user steps on the stepping device 300.

For example, referring to fig. 7A, when the driving module 20 drives each swing arm 30 to swing outward to a maximum swing position, the relative distance between each set of the magnetic elements 40 and the flywheel 400 is adjusted to a design minimum, at this time, the flywheel 400 cuts the magnetic induction lines of each set of the magnetic elements 40 by the largest amount when being driven to rotate, and the resistance that can be obtained by the flywheel 400 is the largest. Accordingly, referring to fig. 7B, when the driving module 20 drives each swing arm 30 to swing inward to a minimum swing position, the relative distance between each set of the magnetic elements 40 and the flywheel 400 is adjusted to a design maximum value, at which the flywheel 400 cuts the magnetic induction lines of each set of the magnetic elements 40 by the minimum amount when being driven to rotate, and the resistance that can be obtained by the flywheel 400 is the minimum.

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

Referring to fig. 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 connected to the driving mechanism 21 in a driving manner, the other end of each linkage mechanism 22 is respectively rotatably mounted on the driven end 32 of each swing arm 30, wherein the two linkage mechanisms 22 have an overlapping portion in the height direction, in such a manner that when the driving force provided by the driving mechanism 21 is transmitted to each linkage mechanism 22, each linkage mechanism 22 can apply a large angle to each swing arm 30 to drive each swing arm 30 to respectively drive each set of magnetic elements 40 to swing relative to the magnetron housing 10, and thus: on the one hand, the utility model discloses an interior magnetic control device 100 can reduce right the requirement of actuating mechanism 21's drive power to be favorable to reducing interior magnetic control device 100's cost, on the other hand, interior magnetic control device 100 can smoothly drive every swing arm 30 swings at bigger within range, thereby is favorable to improving interior magnetic control device 100's reliability.

It should be noted that the manner in which the linkage 22 is rotatably mounted to 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 assemblies 50, wherein an end of the linkage mechanism 22 is rotatably mounted on the assemblies 50, the assemblies 50 are disposed on the driven end 32 of the swing arm 30, and thus the end of the linkage mechanism 22 is rotatably mounted on the driven end 32 of the swing arm 30.

For easy understanding and description, referring to fig. 7A and 7B, two swing arms 30 of the internal magnetic control device 100 are defined as a left side swing arm 30a and a right side swing arm 30B, and correspondingly, two linkage mechanisms 22 of the driving module 20 of the internal magnetic control device 100 are defined as a left side linkage mechanism 22a and a right side linkage mechanism 22B. One end of the left linkage mechanism 22a is rotatably mounted to the driven end 32 of the left swing arm 30a, the other end of the left linkage mechanism 22a extends in a direction toward the right swing arm 30b and is drivably connected to the driving mechanism 21, accordingly, one end of the right linkage mechanism 22b is rotatably mounted to the driven end 32 of the right swing arm 30b, and the other end of the right linkage mechanism 22b extends in a direction toward the left swing arm 30a and is drivably connected to the driving mechanism 21, wherein the left linkage mechanism 22a and the right linkage mechanism 22b have an overlapping portion in a height direction. For example, in the specific example of the internal magnetic control device 100 shown in fig. 2 to 7B, the right linkage 22B is located above the left linkage 22 a. Of course, it can be understood that, in other alternative examples of the internal magnetic control device 100 of the present invention, the right linkage 22b may be located at a lower portion of the left linkage 22 a.

In other words, the projection of the left interlocking mechanism 22a on the magnetron housing 10 and the projection of the right interlocking mechanism 22b on the magnetron housing 10 have an overlapping portion and are in an "X" shape, in this way, the extending direction of the connecting line between the center of the pivoting end 31 and the center of the driven end 32 of the left swing arm 30a and the extending direction of the left interlocking mechanism 22a form a large angle, to allow the left side link mechanism 22a to apply a force to the left side swing arm 30a at a large angle, and, accordingly, the extending direction of the connecting line between the center of the pivoting end 31 and the center of the driven end 32 of the right swing arm 30b and the extending direction of the right interlocking mechanism 22b form a large angle, to allow the right side interlocking mechanism 22b to apply a force to the right side swing arm 30b at a large angle.

When the driving mechanism 21 outputs power in one direction, the driving mechanism 21 can drive the left linkage mechanism 22a to move toward a 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 and to swing the left swing arm 30a inward, and at the same time, the driving mechanism 21 can drive the right linkage mechanism 22b to move toward a 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 and to swing the right swing arm 30b inward. Accordingly, when the driving mechanism 21 outputs power in the reverse direction, the driving mechanism 21 can drive the left linkage mechanism 22a to move in a direction 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 and swing the left swing arm 30a outwards, and at the same time, the driving mechanism 21 can drive the right linkage mechanism 22b to move in a direction 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 and swing the right swing arm 30b outwards.

Preferably, with the above-mentioned structural design of the internal magnetic control device 100 of the present invention, the left linkage mechanism 22a can keep applying a force to the left swing arm 30a at a larger angle no matter the left linkage mechanism 22a pulls the left swing arm 30a to swing from the maximum swing position to the minimum swing position, or the left linkage mechanism 22a pushes the left swing arm 30a to swing from the minimum swing position to the maximum swing position; accordingly, the right side interlocking mechanism 22b can keep applying a large angle force to the right side swing arm 30b, regardless of whether the right side interlocking mechanism 22b pulls the right side swing arm 30b to swing from the maximum swing position to the minimum swing position or the right side interlocking mechanism 22b pushes the right side swing arm 30b to swing from the minimum swing position to the maximum swing position.

Referring to fig. 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, wherein the driving motor 211 is mounted 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 screws 213 are drivably connected to the power output gear 212, the threaded sliders 214 are disposed on the lead screws 213, and the two interlocking mechanisms 22 are rotatably connected to the two threaded sliders 214, respectively.

The two lead screws 213 held on both sides of the power output gear 212 have external threads extending in opposite directions, and the screw block 214 has internal threads adapted to the external threads of the lead screws 213, and the screw block 214 is drivably attached to the lead screws 213 in such a manner that the internal threads are adapted to the external threads of the lead screws 213. The power output gear 212 is engaged with an output shaft 2111 of the drive motor 211. That is, in this particular 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, the lead screw 213 held on both sides of the power output gear 212 rotates along with 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 so as to further drive each swing arm 30 to swing, and the swing amplitude of each swing arm 30 is consistent.

Preferably, the driving mechanism 21 further includes at least one transmission gear 215, wherein the transmission gear 215 is disposed between the output shaft 2111 of the driving motor 211 and the power output gear 212, and the transmission gear 215 is engaged with the output shaft 2111 of the driving motor 211 and the power output gear 212. In this way, when the driving motor 211 outputs power in a manner that the output shaft 2111 of the driving motor 211 rotates, the power can be transmitted to each linkage mechanism 22 through the transmission gear 215 and the power output gear 212 in sequence, so as to drive each linkage mechanism 22 to move and further drive each swing arm 30 to swing.

In this specific embodiment of the present invention, the linkage mechanism 22 has an avoiding groove 2201, and the outer surface of the linkage mechanism 22 is recessed inwards to form the avoiding groove 2201, wherein the outer surface of the linkage mechanism 22 is the surface of the linkage mechanism facing the swing arm 30. The avoiding groove 2201 is close to the end of the linkage mechanism 22 connected with the assembly 50, and when the two linkage mechanisms 22 are pulled to be close to each other, the assembly 50 can enter the avoiding groove 2201 to avoid obstructing the movement of the linkage mechanism 22. In this way, it is not only beneficial for the driving mechanism 21 to smoothly drive the linkage mechanisms, but also the movement range of the two linkage mechanisms 22 is increased, so that the swing arm 30 obtains a larger swing range.

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 32 b. Accordingly, the two linkages 22 of the driving module 20 of the internal magnetic control device 100 are defined as the left linkage 22a and the right linkage 22b, the left linkage 22a has a left avoidance groove 2201a, and the right linkage 22b has a right avoidance groove 2201 b. The two lead screws 213 of the drive mechanism 21 of the drive module 20 defining the internal magnetic control device 100 are a left lead screw 213a and a right lead screw 213b, and correspondingly, the two threaded sliders 214 are a left threaded slider 214a and a right threaded slider 214 b. Two of the assemblies 50 are defined as a left side assembly 50a and a right side assembly 50 b.

For example, referring to fig. 7A, when the driving motor 211 outputs power in such a manner that the output shaft 211 of the driving motor 211 rotates in reverse, 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 reversely. At this time, the left screw shaft 213a and the right screw shaft 213b on the left side of the power output gear 212 are driven to rotate synchronously and reversely. The left screw block 214a installed at the left screw shaft 213a moves to the right along the left screw shaft 213a, and at the same time, the right screw block 214b installed at the right screw shaft 213b moves to the left. The left pivot end 31a of the left swing arm 30a and the right pivot end 31 of the right swing arm 30b simultaneously rotate relative to the magnetron housing 10, the left linkage 22a pulls the left driven end 32a of the left swing arm 30a to move leftward, and the right linkage 22b pulls the right driven end 32a of the right swing arm 30a to move rightward. In this way, the magnetic element 40 of the internal magnetic control device 100 is far 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 internal magnetic control device 100 increases.

Referring to fig. 7B, when the driving motor 211 outputs power in such a manner that the output shaft 211 of the driving motor 211 rotates in the forward direction, 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 positively. At this time, the left screw shaft 213a and the right screw shaft 213b on the left side of the power output gear 212 are driven to rotate synchronously and positively. The left screw block 214a installed at the left screw shaft 213a moves to the left along the left screw shaft 213a, and at the same time, the right screw block 214b installed at the right screw shaft 213b moves to the right. The left pivot end 31a of the left swing arm 30a and the right pivot end 31 of the right swing arm 30b simultaneously rotate relative to the magnetron housing 10, the left linkage 22a pulls the left driven end 32a of the left swing arm 30a to move to the right, and the right linkage 22b pulls the right driven end 32a of the right swing arm 30a to move to the left. In this way, the magnetic element 40 of the internal magnetic control device 100 is far away from the flywheel 400, and 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 internal magnetic control device 100 is reduced.

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 avoiding groove 2201b of the right linkage mechanism 22b, and the right assembly 50b enters the left avoiding groove 2201a of the left linkage mechanism 22 a.

It should be noted that the output shaft 2111 of the driving 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. It should be understood by those skilled in the art that the specific embodiments of the drive mechanism 21 disclosed in the drawings and text herein are illustrative only and should not be construed as limiting the scope and content of the internal magnetic control device 100 of the present invention.

Preferably, there is a gap between two linkages 22 arranged above and below to avoid friction between the two linkages 22, so that: on one hand, the driving mechanism 21 can smoothly drive each swing arm 30 to swing through each linkage mechanism 22; on the other hand, the two interlocking mechanisms 22 do not generate friction, thereby avoiding noise generation and avoiding abrasion of the interlocking mechanisms 22.

In the embodiment shown in fig. 5A to 7B, the driving 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 the embodiment shown in fig. 9A and 9B, the driving 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 at one side of the screw rod 213.

Specifically, in the particular embodiment shown in fig. 9A and 9B, the drive mechanism 21 of the drive module 20 further includes a linkage member 216, and the lead screw 213 has a proximal end 2131 and a distal end 2132. The linkage 216 is located between the adjacent ends 2131 of the two lead screws 213 and connected to the adjacent ends 2131 of the two lead screws 213. The power output gear 212 is disposed at a distal end 2132 of one of the lead screws 213, the power output gear 212 is drivably connected to the output shaft 2111 of the driving motor 211, and the output shaft 2111 is a threaded end.

When the output end 2111 of the driving motor 211 rotates, the power output gear 211 is driven to synchronously rotate, the two lead screws 213 and the linkage 216 synchronously rotate, and at this time, the screw 214 mounted on the lead screws 213 moves along the extending direction of the lead screws 213 to drive each linkage 22 to further drive each swing arm 30 to swing.

The driving mechanism 21 further includes five spaced supporting seats 217, the supporting seats 217 are disposed on the magnetron housing 10, two ends of the lead screw 214 are rotatably mounted on the two spaced supporting seats 217, and the linkage 216 is rotatably mounted on the supporting seat 217 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 along with the lead screw 213 driven by the power output gear 212, and can drive the other lead screw 213 to rotate.

Preferably, in this particular embodiment shown in fig. 9A and 9B, the driving motor 211 is implemented as one, and two connected lead screws 213 are simultaneously driven by one driving motor 211.

Optionally, the driving module includes two driving motors, two power output gears, two lead screws are adjacently and closely arranged at intervals at the adjacent ends, the two power output gears are respectively arranged at the far ends of the two lead screws, and the two power output gears are respectively connected to the output shafts of the two driving motors in a driving manner. The two driving motors are used for driving the two screw rods to rotate respectively, so as to drive each linkage mechanism 22 to move and further drive each swing arm 30 to swing.

Referring to fig. 6A and 6B, the internal magnetic control device 100 further includes a potential control unit 60, the potential control unit 60 includes a circuit board 61 and a sliding potentiometer 62, wherein the circuit board 61 is mounted in the housing space 101 of the magnetron housing 10, wherein the sliding potentiometer 62 further includes a potentiometer main body 621 and a sliding arm 622 slidably disposed on the potentiometer main body 621, the potentiometer main body 621 is attached to or welded to the circuit board 61, and the sliding 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 sliding arm 622 to move relative to the potentiometer main body 621, so as to change the resistance of the sliding potentiometer 62.

In this particular embodiment of the present invention, the potential control unit 60 further comprises an extension arm 63, wherein 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 sliding potentiometer 62. The extension arm 63 is held parallel to the lead screw 213 between the threaded slider 214 and the slide potentiometer 62, so as to allow the lead screw 213 and the threaded slider 214 to be displaced. The connection manner of the extension arm 63 and the threaded slider 214 and the sliding potentiometer 63 is not limited, for example, but not limited to, one end of the extension arm 63 is welded to the threaded slider 214, the other end of the extension arm 63 has a mounting groove 630, and the sliding arm 622 of the sliding potentiometer 62 extends to be held in the mounting groove 630, so as to mount the sliding arm 622 of the sliding potentiometer 62 on the extension arm 63.

Alternatively, the sliding arm 622 of the sliding potentiometer 62 is directly mounted to the threaded slider 214, and the manner in which the sliding arm 622 is directly mounted to the threaded slider 214 is not limited in the internal magnetic control device 100 of the present invention. For example, the mounting groove 630 is formed in the threaded slider 214, wherein the sliding arm 622 of the sliding potentiometer 62 extends to and is held in the mounting groove 25 of the threaded slider, thus mounting the sliding arm 622 of the sliding potentiometer 62 to the threaded slider.

It will be appreciated that the resistance 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 and thus the load on the flywheel 400 when driven to rotate. In other words, the position of the magnetic element 50 of the internal magnetic control device 100 and the load of the flywheel 400 when driven to rotate according to the present invention can be determined by detecting the resistance of the sliding potentiometer 62. Fig. 8A to 8E show an assembly process of the internal magnetic control device 100 according to the present invention.

Referring to fig. 8A, a second housing 12 is provided, wherein the second housing 12 is provided with mounting areas.

Referring to fig. 8B, the driving motor 211 is mounted to the mounting region of the second housing 12. Preferably, the driving motor 211 is fixed to the mounting area of the second housing 12 by welding, screws, bolts, or other assembly means known to those skilled in the art.

Referring to fig. 8C, first, the interlocking mechanism 22 is mounted on the threaded slider 214, and the interlocking mechanism 22 is allowed to rotate relative to the threaded slider 214. Next, the two screw sliders 214 are respectively screwed to the two lead screws 213. Then, one end of the two lead screws 213 is fixed to the power transmission gear 212, and the other end is rotatably mounted to the second housing 12, and the lead screws 213 can rotate following the power transmission gear 212. Further, the power transmission gear 212 is engaged with the transmission gear 215, and the transmission gear 215 is engaged with the output shaft 2111 of the driving motor 211. It should be noted that the sequence of mounting the linkage mechanism 22, the threaded slider 214, the lead screw 213, the power transmission gear 212, and the transmission gear 215 is merely an example, and is not intended to limit the content and scope of the internal magnetic control device 100 and the assembly method thereof.

Referring to fig. 8D, first, the pivot end 31 of the swing arm 30 is mounted to the second housing 12, and the pivot end 21 of the swing arm 30 is allowed to rotate relative to the second housing 12. Next, the driven end 32 of the swing arm 30 is connected to the interlocking mechanisms 22, and the two interlocking mechanisms 22 are maintained to be in an "X" shape, and the avoiding groove 2201 of the interlocking mechanism 22 is close to the assembly 50 disposed at the driven end 32 of the swing arm 30.

Referring to fig. 8E, the first housing 11 is mounted to the second housing 12 in such a manner that the mounting posts 112 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 of the swing arms 30 is swingably held at the peripheral opening 102 of the magnetron 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 30. Thus, the inner magnetic control apparatus 100 is assembled.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims (11)

1. An internal magnetic control device, comprising:

a magnetic control housing;

two sets of magnetic elements;

the pivoting end of each swing arm is rotatably arranged at the edge of the magnetron shell, and each group of magnetic elements is arranged on each swing arm; and

the driving module is mounted on the magnetron housing and comprises at least one driving motor, at least one power output gear, two lead screws, two thread sliders and two linkage mechanisms, wherein the power output gear is mounted on the output shaft of the driving motor in a driving manner, the lead screws are mounted on the power output gear in a driving manner, the two lead screws are provided with threads with opposite extending directions, the thread sliders are connected to the lead screws in a threaded manner, one end of each linkage mechanism is mounted on the thread sliders in a driving manner, and the other end of each linkage mechanism is mounted on the driven end of each swing arm in a rotatable manner.

2. The internal magnetic control device of claim 1, wherein two of the lead screws are drivably mounted on either side of the power take off gear.

3. The internal magnetic control device according to claim 1, wherein the driving module further includes a linking member, the lead screw has a proximal end and a distal end, the linking 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 driving motor drives the power output gear to rotate, the power output gear drives the linking member and the two lead screws to rotate.

4. The internal magnetic control device according to claim 1, wherein the driving module comprises two driving motors, two power output gears, the screw rods having a proximal end and a distal end, the proximal ends of the two screw rods being adjacent, the two power output gears being respectively disposed at the distal ends of the two screw rods, the two power output gears being respectively drivably connected to the output shafts of the two driving motors.

5. The internal magnetic control device according to claim 2, wherein the output shaft of the drive motor is a gear output shaft, the power output gear being engaged with the output shaft of the drive motor.

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

7. The internal magnetic control device according to any one of claims 1 to 6, wherein the two linkages have an overlapping portion in a height direction.

8. The internal magnetic control device according to claim 7, wherein the drive module further comprises at least one transmission gear, wherein the transmission gear is engaged with the output shaft of the drive motor and the power output gear.

9. The internal magnetic control device according to claim 7, wherein the internal magnetic control device further comprises two assemblies, the linkage mechanism has an avoidance groove, wherein the assemblies are disposed at the driven end of the swing arm, and the linkage mechanism is rotatably mounted to the assemblies in such a manner that the avoidance groove is close to the assemblies.

10. The internal magnetic control device according to claim 7, wherein there is a gap between the two linkages.

11. An exercise apparatus, comprising:

a device frame;

a treading 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 to the equipment rack, the stepping device is treadably mounted to the equipment rack, the flywheel is rotatably mounted to the equipment rack and is drivingly connected to the stepping device, and the flywheel surrounds the outer side of the internal magnetic control device.

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