CN115901047A - Fitness equipment, its external magnetic control device, and method for measuring torque of fitness equipment - Google Patents

Abstract

The invention discloses a body-building apparatus, an external magnetic control device thereof and a torsion measuring method of the body-building apparatus, wherein the external magnetic control device is applied to the body-building apparatus, wherein the external magnetic control device comprises a magnetic control unit, the magnetic control unit further comprises at least one strain gauge, a magnetic control part and an assembling part, the magnetic control part is provided with a connecting end, a free end corresponding to the connecting end and a magnetic control space formed at the free end, the magnetic control space is a magnetic field environment, the assembling part is installed at the connecting end of the magnetic control part, and the strain gauge is installed between the magnetic control part and the assembling part.

Description

Fitness equipment, its external magnetic control device, and method for measuring torque of fitness equipment

technical field

The invention relates to the field of fitness equipment, in particular to a fitness equipment, its external magnetic control device and a method for measuring the torque of the fitness equipment.

Background technique

In recent years, fitness equipment used for aerobic exercise such as spinning bikes and elliptical machines has been widely welcomed in the market. Existing fitness equipment, that is, a body trainer, includes a trainer body and a torsion measurement system applied to the trainer body. The trainer body includes a fixed frame, a flywheel, a torque output mechanism, a brake and an adjustment rod. The flywheel is rotatably installed on the fixed frame. The torque output mechanism is used to drive the flywheel to rotate. The adjustment rod It is arranged on the fixed frame and connected with the brake part, so as to control the displacement of the brake part relative to the fixed seat, and adjust the friction force between the brake part and the flywheel by controlling the relative position of the brake part, so as to control the user The torque paid by stepping on the torque output mechanism. In other words, the torque exerted by the user when stepping on the torque output mechanism is related to the frictional force between the brake member and the flywheel. The torque measurement system includes a measuring device and a computing device connected to the measuring device, the measuring device includes a shrapnel, a strain gauge set, a circuit board and a housing, the shrapnel has a first end , a second end and a setting surface, the first end is connected to the brake member, the second end is connected to the fixing frame, the casing is set on the setting surface, the strain gauge group and the circuit board are set on the casing , so that the strain gauge group is set floating. When the user steps on the torque output mechanism to pay torque, the torque output mechanism drives the flywheel to rotate, and since there is friction between the flywheel and the brake piece, the flywheel has the ability to drive the brake piece towards the rotation of the flywheel when it rotates direction movement trend, at this time, the braking member exerts a pulling force on the shrapnel, the strain scale group can measure the pulling force on the shrapnel, and the computing device can calculate the user’s pedaling force according to the pulling force on the shrapnel and the radius value of the flywheel. The amount of torque paid by the torque output mechanism.

Although the existing fitness equipment can measure the torque exerted by the user when stepping on the torque output mechanism, its accuracy is poor. Specifically, the strain gauge group of the existing fitness equipment is set in the air, so not only the pulling force applied by the brake member to the shrapnel when the flywheel rotates is measured by the strain gauge group, but also the brake member and The gravitational force of the shrapnel can also be measured by the strain gauge set, and the strain is caused by the pulling force exerted by the brake on the shrapnel when the flywheel rotates and the gravity of the brake and the shrapnel act on the strain gauge set simultaneously. The scale group cannot accurately measure the pulling force exerted by the braking member on the shrapnel when the flywheel is rotating, which further leads to the inability of the existing fitness equipment to accurately measure the torque exerted by the user when stepping on the torque output mechanism.

Contents of the invention

An object of the present invention is to provide a fitness equipment, its external magnetic control device, and a method for measuring the torque of the fitness equipment, wherein the torque exerted by the user when using the fitness equipment can be accurately measured, so as to improve the fitness of the user Effect.

An object of the present invention is to provide a body-building equipment and its external magnetic control device and a method for measuring the torque of the fitness equipment, wherein the external magnetic control device provides a magnetic control unit, and a strain gauge of the magnetic control unit is set for Measuring the pulling force of a flywheel of the fitness equipment on the magnetic control unit when rotating, so as to accurately measure the torsion force exerted by the user when using the fitness equipment subsequently.

An object of the present invention is to provide a body-building equipment, its external magnetic control device and a method for measuring the torque of the body-building equipment, wherein the strain gauge is built into the magnetic control unit, so as to avoid the gravity of the magnetic control unit from affecting the In this way, the strain gauge can accurately measure the pulling force of the flywheel on the magnetic control unit when it rotates, so as to accurately measure the user's force when using the fitness equipment in the future. Pay the torque.

An object of the present invention is to provide a fitness equipment, its external magnetic control device and a method for measuring the torque of the fitness equipment, wherein the magnetic control unit provides two strain gauges, and the two strain gauges are respectively arranged on the The opposite sides of the rotating shaft of the magnetic control unit are used to measure the pulling force of the flywheel on the magnetic control unit when rotating on the opposite sides of the rotating shaft of the magnetic control unit, by measuring the two strain gauges As a result, the way of mutual calibration can accurately measure the pulling force of the flywheel on the magnetic control unit when it rotates.

One object of the present invention is to provide a fitness equipment, its external magnetic control device and a method for measuring the torque of the fitness equipment, wherein the magnetic control unit provides a magnetic control part and an assembly part, and the assembly part is installed on the magnetic control unit. control part and a base frame rotatably installed on the fitness equipment, the strain gauge is installed between the magnetic control part and the assembly part, when the flywheel rotates and cuts the magnetic control When the magnetron part is pulled by the magnetic induction line of the part, the magnetron part has a tendency of displacement relative to the assembly part and exerts force on the strain gauge, and the strain gauge measures the The pulling force of the flywheel on the magnetic control unit when it rotates.

One object of the present invention is to provide a fitness equipment, its external magnetic control device and a method for measuring the torque of the fitness equipment. By installing the strain gauge between the magnetic control part and the assembly part, the strain gauge It can rotate with the rotation of the magnetic control unit, so that the direction of the pulling force of the flywheel on the magnetic control unit can always be perpendicular to the strain gauge when rotating, so as to ensure the measurement accuracy of the strain gauge.

An object of the present invention is to provide a body-building equipment, its external magnetic control device and a method for measuring the torsion of the body-building equipment, wherein the strain gauge is hidden between the magnetic control part and the assembly part, so that the strain The sheet is not visible, so the reliability and stability of the outer magnetron device can be improved.

One object of the present invention is to provide a body-building equipment, its external magnetic control device and a method for measuring the torque of the fitness equipment, wherein the external magnetic control device provides a drive unit, and the drive unit is used to drive the magnetic control unit to make a relative Based on the rotation of the base frame, the resistance of the flywheel can be adjusted by adjusting the relative position of the magnetic control unit and the flywheel, so as to achieve different fitness effects.

According to one aspect of the present invention, the present invention provides a fitness equipment, which comprises:

a pedestal;

a footrest member, wherein said footrest member is treadably mounted to said base frame;

a flywheel, wherein the flywheel is rotatably mounted to the base frame and drivably connected to the tread member; and

An external magnetic control device, wherein the external magnetic control device includes a magnetic control unit, and the magnetic control unit further includes:

at least one strain gauge;

A magnetic control part, wherein the magnetic control part has a connecting end, a free end corresponding to the connecting end and a magnetic control space formed at the free end, the magnetic control space is a magnetic field environment, wherein the flywheel A portion of is held in the magnetron space of the magnetron portion; and

a fitting part, wherein the fitting part is mounted on the connection end of the magnetic control part and is rotatably mounted on the base frame, so as to allow the magnetic control unit to go around the fitting part and the The installation position of the base frame is rotated, wherein the strain gauge is installed between the magnetron part and the fitting part.

According to an embodiment of the present invention, the magnetic control part has an assembly space formed at the connecting end, wherein the assembly part is formed between the assembly part and the magnetic control part. At least one strain space of the magnetic control unit is installed in the assembly space of the magnetic control part, wherein the strain gauge is arranged in the strain space.

According to an embodiment of the present invention, the strain gauge includes a frame part and a strain part, the frame part forms a frame space, and the strain part has a connection end and a suspension corresponding to the connection end. end portion, the strained portion is held in the frame space defined by the frame portion in such a manner that the suspended end portion of the strained portion is suspended and the connecting end portion is connected to the frame portion, wherein The frame portion of the strain gauge is fixedly mounted on the magnetron portion, and the suspended end portion of the strain portion of the strain gauge is fixedly mounted on the fitting portion.

According to an embodiment of the present invention, the strain gauge includes a frame part and a strain part, the frame part forms a frame space, and the strain part has a connection end and a suspension corresponding to the connection end. end portion, the strained portion is held in the frame space defined by the frame portion in such a manner that the suspended end portion of the strained portion is suspended and the connecting end portion is connected to the frame portion, wherein The frame part of the strain gauge is fixedly mounted on the fitting part, and the suspended end part of the strain part of the strain gauge is fixedly mounted on the magnetron part.

According to an embodiment of the present invention, the magnetron part has a first inner wall and a second inner wall facing and parallel to the first inner wall, and correspondingly, the fitting part has a first outer wall and a second inner wall parallel to the first inner wall. A second outer wall of the first outer wall, wherein the fitting part is attached to the first inner wall of the magnetron part and the second outer wall of the fitting part with the first outer wall of the fitting part The outer wall is attached to the second inner wall of the magnetic control part and installed in the assembly space of the magnetic control part.

According to an embodiment of the present invention, the magnetic control unit has two strain spaces, and the two strain spaces are respectively formed on opposite sides of the assembly part. Correspondingly, the magnetic control unit includes two As for the strain gauges, each of the strain gauges is respectively arranged in each of the strain spaces.

According to an embodiment of the present invention, the external magnetic control device further includes a driving unit, wherein the magnetic control portion of the magnetic control unit is drivably connected to the driving unit to allow the driving unit to drive The magnetic control unit makes the magnetic control unit rotate around the installation position of the assembly part and the base frame.

According to another aspect of the present invention, the present invention further provides an external magnetic control device, which is applied to a fitness equipment, wherein the external magnetic control device includes a magnetic control unit, wherein the magnetic control unit further includes:

at least one strain gauge;

A magnetron part, wherein the magnetron part has a connecting end, a free end corresponding to the connecting end, and a magnetron space formed at the free end, the magnetron space being a magnetic field environment; and

An assembly part, wherein the assembly part is installed at the connection end of the magnetron part, and the strain gauge is installed between the magnetron part and the assembly part.

According to an embodiment of the present invention, the magnetic control part has an assembly space formed at the connecting end, wherein the assembly part is formed between the assembly part and the magnetic control part. At least one strain space of the magnetic control unit is installed in the assembly space of the magnetic control part, wherein the strain gauge is arranged in the strain space.

According to an embodiment of the present invention, the strain gauge includes a frame part and a strain part, the frame part forms a frame space, and the strain part has a connection end and a suspension corresponding to the connection end. end portion, the strained portion is held in the frame space defined by the frame portion in such a manner that the suspended end portion of the strained portion is suspended and the connecting end portion is connected to the frame portion, wherein The frame portion of the strain gauge is fixedly mounted on the magnetron portion, and the suspended end portion of the strain portion of the strain gauge is fixedly mounted on the fitting portion.

According to an embodiment of the present invention, the strain gauge includes a frame part and a strain part, the frame part forms a frame space, and the strain part has a connection end and a suspension corresponding to the connection end. end portion, the strained portion is held in the frame space defined by the frame portion in such a manner that the suspended end portion of the strained portion is suspended and the connecting end portion is connected to the frame portion, wherein The frame part of the strain gauge is fixedly mounted on the fitting part, and the suspended end part of the strain part of the strain gauge is fixedly mounted on the magnetron part.

According to an embodiment of the present invention, the magnetron part has a first inner wall and a second inner wall facing and parallel to the first inner wall, and correspondingly, the fitting part has a first outer wall and a second inner wall parallel to the first inner wall. A second outer wall of the first outer wall, wherein the fitting part is attached to the first inner wall of the magnetron part and the second outer wall of the fitting part with the first outer wall of the fitting part The outer wall is attached to the second inner wall of the magnetic control part and installed in the assembly space of the magnetic control part.

According to an embodiment of the present invention, the magnetic control unit has two strain spaces, and the two strain spaces are respectively formed on opposite sides of the assembly part. Correspondingly, the magnetic control unit includes two As for the strain gauges, each of the strain gauges is respectively arranged in each of the strain spaces.

According to another aspect of the present invention, the present invention further provides a torsion measurement method of fitness equipment, wherein the torsion measurement method includes the following steps:

(a) When a flywheel of the fitness equipment rotates in a magnetic field environment of a magnetic control unit to cut the magnetic field lines of the magnetic control unit, the flywheel applies a pulling force to a magnetic control part of the magnetic control unit , to allow the magnetic control part to have a tendency of displacement relative to an assembly part of the magnetic control unit;

(b) The magnetic control part and the assembly part apply force to the strain gauge on opposite sides of at least one strain gauge of the magnetron unit, so as to allow the strain gauge to measure the rotation of the flywheel a pulling force applied to the magnetron; and

(c) measuring torque from the measurement results of the strain gauges and the radius of the flywheel.

According to an embodiment of the present invention, in the above method, when the magnetic control unit rotates relative to the flywheel to adjust the relative position of the magnetic control unit and the flywheel, the magnetic control unit drives the The strain gauges rotate synchronously.

Description of drawings

Fig. 1 is a schematic front view of a fitness equipment according to a preferred embodiment of the present invention.

Fig. 2 is a schematic perspective view of the fitness equipment according to the above-mentioned preferred embodiment of the present invention.

FIG. 3A is a perspective view of an external magnetic control device of the fitness equipment according to the above-mentioned preferred embodiment of the present invention.

Fig. 3B is a three-dimensional schematic diagram of another viewing angle of the outer magnetic control device of the fitness equipment according to the above-mentioned preferred embodiment of the present invention.

Fig. 4 is an exploded schematic view of the outer magnetic control device of the fitness equipment according to the above-mentioned preferred embodiment of the present invention.

Fig. 5 is a schematic perspective view of a magnetic control unit of the outer magnetic control device of the fitness equipment according to the above-mentioned preferred embodiment of the present invention.

FIG. 6 is an enlarged schematic diagram of a partial position of FIG. 5 .

Fig. 7 is an exploded schematic diagram of the magnetic control unit of the outer magnetic control device of the fitness equipment according to the above preferred embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view of the magnetic control unit of the outer magnetic control device of the fitness equipment according to the above preferred embodiment of the present invention.

FIG. 9 is an enlarged schematic diagram of a partial position of FIG. 8 .

Detailed ways

Before describing in detail any embodiment of the invention, it is to be understood that the invention is not limited in its application to the details of construction and arrangement of the 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 carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. The use of "including", "including" or "having" and variations thereof herein is intended to cover the items listed below and their equivalents as well as additional items. Unless otherwise specified or limited, the terms "mount", "connect", "support" and "coupling" and variations thereof are used broadly and encompass both direct and indirect mounting, connecting, supporting and coupling. Furthermore, "connected" and "coupled" are not limited to physical or mechanical connections or couplings.

And, in the first aspect, in the disclosure of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical" , "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are 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 operated in a specific orientation, the above terms cannot be construed as limiting the present invention; in the second aspect, the term "a" should be understood as "at least one "or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a logarithmic quantity limits.

Referring to accompanying drawings 1 to 9 of the accompanying drawings of the present invention, an exercise equipment according to a preferred embodiment of the present invention will be disclosed and explained in the following description, wherein said exercise equipment includes a base frame 10. A pedal component 20 , a flywheel 30 and an external magnetic control device 40 .

The footrest member 20 is attached to the base frame 10 so as to be able to step on it. The flywheel 30 is rotatably installed on the base frame 10 and is drivably connected to the pedal member 20, so that the user can drive the flywheel 30 to do relative to the pedal member 20 by stepping on the pedal member 20 The rotation of the base frame 10. The outer magnetic control device 40 includes a magnetic control unit 41, wherein the magnetic control unit 41 is rotatably mounted on the base frame 10 in a manner adjacent to the magnetic control unit 41 and the flywheel 30 and has A magnetic field environment, wherein a part of the flywheel 30 is held in the magnetic control environment of the magnetic control unit 41 . When the user steps on the pedal member 20 to drive the flywheel 30 to rotate relative to the base frame 10 , the flywheel 30 can cut the magnetic field lines of the magnetic control unit 41 to obtain resistance. The relative position of the magnetic control unit 41 and the flywheel 30 can be adjusted by driving the magnetic control unit 41 to rotate relative to the base frame 10, so as to adjust the resistance of the flywheel 30 to help the user achieve Different fitness effects. For example, when the magnetic control unit 41 is driven to move in a direction close to the flywheel 30 to reduce the distance of the magnetic control unit 41 relative to the flywheel 30, the resistance of the flywheel 30 can be increased; correspondingly When the magnetic control unit 41 is driven to move away from the flywheel 30 to increase the distance between the magnetic control unit 41 and the flywheel 30 , the resistance of the flywheel 30 can be reduced.

Specifically, the magnetic control unit 41 includes a magnetic control part 411 , an assembly part 412 and at least one strain gauge 413 . The magnetic control part 411 has a connecting end 4111, a free end 4112 corresponding to the connecting end 4111, and a magnetic control space 4113 formed at the free end 4112, and the magnetic control space 4113 is the magnetic field environment , wherein a part of the flywheel 30 can be kept in the magnetic control space 4113 of the magnetic control part 411, so that the part of the flywheel 30 can be kept in the magnetic control environment of the magnetic control unit 41 . The fitting part 412 is mounted on the connection end 4111 of the magnetic control unit 411 and is rotatably mounted on the base frame 10, so that the fitting part 412 forms the rotation of the magnetic control unit 41 to The magnetic control unit 41 is allowed to rotate around the installation position of the assembly part 412 and the base frame 10 . The strain gauge 413 is installed between the magnetic control part 411 and the fitting part 412 , and the strain gauge 413 is configured to be able to rotate with the rotation of the magnetic control unit 41 .

When the user steps on the pedal member 20 to drive the flywheel 30 to rotate relative to the base frame 10, the flywheel 30 can cut the magnetic field lines of the magnetic control unit 41 to obtain resistance. At this time, The flywheel 30 pulls the magnetic control part 411 of the magnetic control unit 41 when rotating, so that the magnetic control part 411 has a tendency of displacement relative to the assembly part 412 and exerts force on the strain gauge 413, the strain gauge 413 can measure the pulling force of the flywheel 30 on the magnetic control unit 41 when rotating according to the magnitude of the force, so in the follow-up, according to the radius of the flywheel 30 and the measurement results of the strain gauge 413 It can accurately measure the torque exerted by the user when using the fitness equipment, so as to improve the fitness effect of the user.

More specifically, the magnetic control part 411 has an assembly space 4114 formed at the connection end 4111 of the magnetic control part 411, wherein the assembly part 412 is formed by the magnetic control part 411 and The assembly parts 412 are installed in the assembly space 4114 of the magnet control part 411 in such a manner that at least one strain space 414 of the magnetic control unit 41 is formed. The strain gauge 413 further includes a frame portion 4131 and a strain portion 4132, the frame portion 4131 forms a frame space 41310, the strain portion 4132 has a connecting end 41321 and a corresponding to the connecting end 41321 a suspended end portion 41322, wherein the strained portion 4132 is held on the frame portion 4131 in such a manner that the suspended end portion 41322 of the strained portion 4132 is suspended and the connecting end portion 41321 is connected to the frame portion 4131 The frame space defined by 41310. The frame portion 4131 of the strain gauge 413 is fixedly mounted on the magnetron 411 , and the suspended end portion 41322 of the strain portion 4132 of the strain gauge 413 is fixedly mounted on the assembly portion 412 , so that the strain gauge 413 is held in the strain space 414 in a manner of being installed between the magnetron part 411 and the fitting part 412 . With the above structure, when the magnetic control part 411 is pulled and tends to be displaced relative to the fitting part 412, the strain part 4132 of the strain gauge 413 can be slightly deformed to measure the magnetic force. The pulling force received by the control part 411, so that in the follow-up, according to the measurement results of the radius of the flywheel 30 and the strain gauge 413, the torsion force paid by the user when using the fitness equipment can be accurately measured, so as to help improve the user's fitness effect.

It is worth mentioning that the manner in which the frame portion 4131 of the strain gauge 413 is fixedly installed on the magnetic control part 411 is not limited in the fitness equipment of the present invention, for example, the strain gauge 413 The frame part 4131 is a square frame, and its four corners are fixedly locked to the magnetic control part 411 by a screw 415 respectively, refer to FIG. 7 . The manner in which the free end portion 41322 of the strain portion 4132 of the strain gauge 413 is fixedly mounted on the fitting portion 412 is not limited in the fitness equipment of the present invention, for example, the strain gauge 413 The suspended end portion 41322 of the strain portion 4132 is fixedly locked to the fitting portion 412 by at least one screw 415 , refer to FIG. 7 .

Optionally, in other specific examples of the fitness equipment of the present invention, the frame part 4131 of the strain gauge 413 is fixedly mounted on the fitting part 412, and the strain part of the strain gauge 413 The suspended end portion 41322 of 4132 is fixedly mounted on the magnetron 411 , so that the strain gauge 413 is held on the magnetron 411 and the mounting portion 412 The strain space 414 is described above. With the above structure, when the magnetic control part 411 is pulled and tends to be displaced relative to the fitting part 412, the strain part 4132 of the strain gauge 413 can be slightly deformed to measure the magnetic force. The pulling force received by the control part 411, so that in the follow-up, according to the measurement results of the radius of the flywheel 30 and the strain gauge 413, the torsion force paid by the user when using the fitness equipment can be accurately measured, so as to help improve the user's fitness effect.

Continuing to refer to accompanying drawings 1 to 9, the strain gauge 413 is held in the strain space 414 by being installed between the magnetron part 411 and the assembly part 412, so that the strain gauge 413 Built into the magnetic control unit 41, in this way, on the one hand, the influence of the gravity of the magnetic control unit 41 on the strain gauge 413 can be avoided, so that the strain gauge 413 can accurately measure the The pulling force of the flywheel 30 to the magnetic control unit 41 when it rotates is used to accurately measure the torsion force paid by the user when using the fitness equipment; on the other hand, the strain gauge 413 is hidden in the magnetic control unit 41 between the control part 411 and the assembly part 412, so that the strain gauge 413 is invisible, so that the stability and reliability of the external magnetic control device 40 can be improved; on the other hand, the strain gauge 413 can With the rotation of the magnetic control unit 41, the direction of the pulling force of the flywheel 30 to the magnetic control unit 41 can always be perpendicular to the strain gauge 413 when rotating, so as to ensure the tension of the strain gauge 413 measurement accuracy. Specifically, no matter after the magnetic control unit 41 is driven to move toward the direction close to the flywheel 30, or after the magnetic control unit 41 is driven to move toward the direction away from the flywheel 30, the flywheel 30 can always be perpendicular to the strain gauge 413 in the direction of the pulling force on the magnetic control unit 41 during rotation, so as to ensure the measurement accuracy of the strain gauge 413 .

Further, the magnetic control part 411 has a first inner wall 4115 and a second inner wall 4116 facing and parallel to the first inner wall 4115, the first inner wall 4115 and the second inner wall 4116 of the magnetic control part 411 Two inner walls 4116 are used to define the assembling space 4114, correspondingly, the assembling part 412 has a first outer wall 4121 and a second outer wall 4122 parallel to the first outer wall 4121, wherein the assembling part 412 is defined by the The first outer wall 4121 of the fitting part 412 is attached to the first inner wall 4115 of the magnetron part 411 and the second outer wall 4122 of the fitting part 412 is attached to the magnetron part 411. The second inner wall 4116 is installed in the assembly space 4114 of the magnetic control part 411 in such a way that: on the one hand, the magnetic control part 411 is driven to move away from or close to the direction of the flywheel 30 , the magnetic control part 411 can make the fitting part 412 rotate around the installation position of the fitting part 412 and the base frame 10 synchronously; on the other hand, when the flywheel 30 rotates and pulls the When the magnetic control part 411 is used, the rotation of the magnetic control part 411 relative to the assembly part 412 can be avoided.

In other words, the structural relationship between the magnetic control part 411 and the assembly part 412 makes the magnetic control part 411 only have a tendency of displacement relative to the The tendency of the rotation of the part 412 ensures the measurement accuracy of the strain gauge 413 in this way.

Specifically, referring to accompanying drawings 1 to 9, the assembly part 412 further includes an assembly block 4123 and an assembly shaft 4124 rotatably mounted on the assembly block 4123, wherein the assembly shaft 4124 is rotatably The first outer wall 4121 and the second outer wall 4122 of the fitting portion 412 are respectively formed on opposite sides of the fitting block 4123 . Another at least one side of the assembly block 4123 of the assembly portion 412 is provided with a groove 41230 for accommodating a part of the strain portion 4132 of the strain gauge 413 .

Continuing to refer to accompanying drawings 1 to 9, the magnetic control part 411 further includes a magnetic control frame 4117 and at least one pair of magnetic elements 4118, wherein the magnetic control frame 4117 includes a frame body 41171, an assembly element 41172 and two extensions Arm 41173, the assembly element 41172 is arranged at one end of the frame body 41171 to define the connection end 4111 of the magnetron 411 and the assembly space 4114, the two extension arms 41173 respectively extend to the other end of the frame body 41171 in a mutually symmetrical manner to define the free end 4112 of the magnetic control part 411 and the magnetic control space 4113, wherein a pair of the magnetic control parts The two magnetic elements 4118 of the elements 4118 are respectively arranged on the two extension arms 41173 in a manner corresponding to each other, so that the magnetic control space 4113 forms the magnetic field environment.

That is to say, the assembly element 41172 of the magnetron frame 4117 of the magnetron part 411 forms the assembly space 4114, and the frame part 4131 of the strain gauge 413 is fixedly mounted on the magnetron The assembly element 41172 of the magnetic control frame 4117 of the part 411.

Continue to refer to accompanying drawing 1 to Fig. 9, wherein said external magnetic control device 40 further comprises a driving unit 42, wherein said driving unit 42 is used for driving described magnetic control unit 41 so that described magnetic control unit 41 surrounds the The assembly part 412 and the installation position of the base frame 10 rotate relative to the base frame 10 to adjust the relative position of the magnetic control unit 41 and the flywheel 30 to adjust the resistance of the flywheel 30 , so as to achieve different fitness effects.

Further, the outer magnetic control device 40 includes a casing 43, wherein the drive unit 42 is mounted on the casing 43, so that the relative relationship between the drive unit 42 and the magnetic control unit 41 is ensured by the casing 43. Positional relationship. Preferably, the housing 43 includes a first housing 431 and a second housing 432 and has a housing space 433 and a bottom opening 434, the first housing 431 and the second housing 432 can are installed mutually to form the housing space 433 and the bottom opening 434 communicating with the housing space 433 between the first housing 431 and the second housing 432, wherein the drive The unit 42 is installed in the first casing 431 in a manner of being held in the casing space 433, wherein the magnetic control unit 41 is movably held in the casing space 433 of the casing 43, And the free end 4112 of the magnetic control part 411 of the magnetic control unit 41 can extend to the outside of the housing space 433 through the bottom opening 434 of the housing 43 to allow the flywheel 30 to A part is held in the magnetic control space 4113 of the magnetic control unit 411 .

Continuing to refer to accompanying drawings 1 to 9, the drive unit 42 further includes a drive motor 421, a drive arm 422 and a set of transmission gears 423, wherein the drive motor 421 is fixedly mounted on the housing 43 The first housing 431, wherein the driving arm 422 has a first arm end 4221 and a second arm end 4222 corresponding to the first arm end 4221, the first arm end 4221 of the driving arm 422 The magnetic control frame 4117 that is rotatably installed on the magnetic control part 411, wherein a set of the transmission gears 423 are respectively rotatably installed on the first housing 431 of the housing 43, and one One of the transmission gears 423 in the set of transmission gears 423 is drivably connected to the output shaft of the drive motor 421, and the second arm end 4222 of the drive arm 422 is drivably connected to a set of The other transmission gear 423 in the transmission gears 423 . When the drive motor 421 works to allow the output shaft of the drive motor 421 to rotate, the power output by the drive motor 421 is transmitted to the magnetic control through a set of transmission gears 423 and the drive arm 422 in turn. The magnetic control frame 4117 of the part 411 , so that the magnetic control unit 41 can rotate around the installation position of the assembly part 412 and the base frame 10 .

According to another aspect of the present invention, the present invention further provides the torsion measurement method of the fitness equipment, wherein the torsion measurement method includes the following steps:

(a) When the flywheel 30 of the fitness equipment rotates in the magnetic field environment of the magnetic control unit 41 and cuts the magnetic field lines of the magnetic control unit 41, the flywheel 30 applies a pulling force to the magnetic field. The magnetic control part 411 of the magnetic control unit 41, to allow the magnetic control part 411 to have a tendency of displacement relative to the assembly part 412 of the magnetic control unit 41;

(b) The magnetron part 411 and the assembly part 412 apply force to the strain gauge 413 on opposite sides of at least one strain gauge 413 of the magnetron unit 41 respectively, so as to allow the strain gauge 413 measuring the pulling force applied to the magnetic control part 411 by the flywheel 30 due to rotation; and

(c) Measure the torque according to the measurement result of the strain gauge 413 and the radius of the flywheel 30 .

According to an embodiment of the present invention, in the above method, when the magnetic control unit 41 rotates relative to the flywheel 30 to adjust the relative position of the magnetic control unit 41 and the flywheel 30, the magnetic control unit 41 The control unit 41 drives the strain gauges 413 to rotate synchronously.

Those skilled in the art can understand that the above embodiments are only examples, and the features of different embodiments can be combined with each other to obtain implementations that are easily conceivable according to the content disclosed in the present invention but not explicitly indicated in the accompanying drawings.

It should be understood by those skilled in the art that the embodiments of the present invention shown in the foregoing description and drawings are only examples and do not limit the present invention. The objects of the present invention have been fully and effectively accomplished. The functions and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention may have any deformation or modification without departing from the principles.

Claims (15)

1. A fitness equipment, characterized in that, comprising: a pedestal; a footrest member, wherein said footrest member is treadably mounted to said base frame; a flywheel, wherein the flywheel is rotatably mounted to the base frame and drivably connected to the tread member; and An external magnetic control device, wherein the external magnetic control device includes a magnetic control unit, and the magnetic control unit further includes: at least one strain gauge; A magnetic control part, wherein the magnetic control part has a connecting end, a free end corresponding to the connecting end and a magnetic control space formed at the free end, the magnetic control space is a magnetic field environment, wherein the flywheel A portion of is held in the magnetron space of the magnetron portion; and a fitting part, wherein the fitting part is mounted on the connection end of the magnetic control part and is rotatably mounted on the base frame, so as to allow the magnetic control unit to go around the fitting part and the The installation position of the base frame is rotated, wherein the strain gauge is installed between the magnetron part and the fitting part. 2. The fitness equipment according to claim 1, wherein the magnetic control part has an assembly space, and the assembly space is formed at the connecting end, wherein the assembly part is formed between the assembly part and the magnetic control At least one strain space of the magnetic control unit is formed between the parts and installed in the assembly space of the magnet control part, wherein the strain gauge is arranged in the strain space. 3. The fitness equipment according to claim 2, wherein the strain gauge comprises a frame portion and a strain portion, the frame portion forms a frame space, and the strain portion has a connecting end and corresponding to the connecting end. a free end portion of the end portion, the strained portion is held in a defined area defined by the frame portion with the free end portion of the strained portion suspended and the connecting end portion connected to the frame portion The frame space, wherein the frame portion of the strain gauge is fixedly mounted on the magnetron portion, and the suspended end portion of the strain portion of the strain gauge is fixedly mounted on the assembly portion. 4. The fitness equipment according to claim 2, wherein said strain gauge comprises a frame portion and a strain portion, said frame portion forms a frame space, said strain portion has a connection end and a connection end corresponding to said connection a free end portion of the end portion, the strained portion is held in a defined area defined by the frame portion with the free end portion of the strained portion suspended and the connecting end portion connected to the frame portion The frame space, wherein the frame part of the strain gauge is fixedly mounted on the fitting part, and the suspended end part of the strain part of the strain gauge is fixedly mounted on the magnetron part. 5. The fitness equipment according to claim 3 or 4, wherein the magnetic control part has a first inner wall and a second inner wall facing and parallel to the first inner wall, correspondingly, the fitting part has a The first outer wall and a second outer wall parallel to the first outer wall, wherein the first outer wall of the fitting part is attached to the first inner wall of the magnetron part and the first outer wall of the fitting part. The second outer wall of the assembly part is installed in the assembly space of the magnetron part in a manner of being attached to the second inner wall of the magnetron part. 6. The fitness equipment according to any one of claims 2 to 4, wherein the magnetic control unit has two strain spaces, and the two strain spaces are respectively formed on opposite sides of the assembly part, correspondingly Specifically, the magnetic control unit includes two strain gauges, and each of the strain gauges is respectively arranged in each of the strain spaces. 7. The fitness equipment according to any one of claims 1 to 4, wherein the external magnetic control device further comprises a driving unit, wherein the magnetic control part of the magnetic control unit is drivably connected to the A driving unit is used to allow the driving unit to drive the magnetic control unit to rotate the magnetic control unit around the installation position of the assembly part and the base frame. 8. An external magnetic control device, applied to a fitness equipment, is characterized in that, comprising a magnetic control unit, wherein said magnetic control unit further comprises: at least one strain gauge; A magnetron part, wherein the magnetron part has a connecting end, a free end corresponding to the connecting end, and a magnetron space formed at the free end, the magnetron space being a magnetic field environment; and An assembly part, wherein the assembly part is installed at the connection end of the magnetron part, and the strain gauge is installed between the magnetron part and the assembly part. 9. The external magnetic control device according to claim 8, wherein the magnetic control portion has an assembly space formed at the connecting end, wherein the assembly portion is formed between the assembly portion and the At least one strain space of the magnet control unit is formed between the magnet control parts and installed in the assembly space of the magnet control part, wherein the strain gauge is arranged in the strain space. 10. The external magnetron device according to claim 9, wherein the strain gauge comprises a frame part and a strain part, the frame part forms a frame space, and the strain part has a connecting end and a corresponding a suspended end portion of the connection end portion, the strained portion is held in the frame portion defined by the suspended end portion of the strained portion being suspended and the connection end portion is connected to the frame portion The frame space of the strain gauge, wherein the frame part of the strain gauge is fixedly mounted on the magnetron part, and the suspended end part of the strain gauge part is fixedly mounted on the assembly department. 11. The external magnetron device according to claim 9, wherein the strain gauge comprises a frame portion and a strain portion, the frame portion forms a frame space, and the strain portion has a connecting end portion corresponding to the a suspended end portion of the connection end portion, the strained portion is held in the frame portion defined by the suspended end portion of the strained portion being suspended and the connection end portion is connected to the frame portion The frame space of the strain gauge, wherein the frame part of the strain gauge is fixedly mounted on the fitting part, and the suspended end part of the strain gauge part is fixedly mounted on the magnetron department. 12. The outer magnetron device according to claim 10 or 11, wherein the magnetron part has a first inner wall and a second inner wall facing and parallel to the first inner wall, correspondingly, the fitting part It has a first outer wall and a second outer wall parallel to the first outer wall, wherein the fitting part is attached to the first inner wall and the first outer wall of the magnetron part with the first outer wall of the fitting part The second outer wall of the assembly part is installed in the assembly space of the magnetron part in a manner of being attached to the second inner wall of the magnetron part. 13. The external magnetic control device according to any one of claims 9 to 12, wherein the magnetic control unit has two strain spaces, and the two strain spaces are respectively formed on opposite sides of the assembly part , correspondingly, the magnetic control unit includes two strain gauges, each of the strain gauges is respectively arranged in each of the strain spaces. 14. a torsion measurement method of fitness equipment, is characterized in that, described torsion measurement method comprises the steps: (a) When a flywheel of the fitness equipment rotates in a magnetic field environment of a magnetic control unit to cut the magnetic field lines of the magnetic control unit, the flywheel applies a pulling force to a magnetic control part of the magnetic control unit , to allow the magnetic control part to have a tendency of displacement relative to an assembly part of the magnetic control unit; (b) The magnetic control part and the assembly part apply force to the strain gauge on opposite sides of at least one strain gauge of the magnetron unit, so as to allow the strain gauge to measure the rotation of the flywheel a pulling force applied to the magnetron; and (c) measuring torque from the measurement results of the strain gauges and the radius of the flywheel. 15. The torque measuring method according to claim 14, wherein in the above method, when the magnetic control unit rotates relative to the flywheel and adjusts the relative position of the magnetic control unit and the flywheel, the The magnetic control unit drives the strain gauges to rotate synchronously.

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