WO2018145233A1

WO2018145233A1 - Variable resistance device and exercise equipment

Info

Publication number: WO2018145233A1
Application number: PCT/CN2017/073018
Authority: WO
Inventors: 黄显智
Original assignee: 黄显智
Priority date: 2017-02-07
Filing date: 2017-02-07
Publication date: 2018-08-16

Abstract

A variable resistance device (1) and an exercise equipment (2), the variable resistance device (1) comprising: a rotary frame (12), paddles (11) and an actuation module (10); the paddles (11) are movablely installed on the rotary frame (12) and may rotate along with the rotary frame (12) so as to generate resistance; the actuation module (2) is installed on the rotary frame (12) and is connected to a paddle (11), the actuation module (2) being used for converting electrical energy to mechanical movement so as to drive the paddle (11) and alter the orientation of the paddle (11) on the rotary frame (12) so as to change resistance; while the actuation module (10) and the paddle (11) are in rotation, the actuation module (10) is static relative to the paddle (11), hence, the actuation module (10) may adjust the position of the paddle (11) when the paddle (11) is in rotation so as to change the amount of resistance generated by the paddle (11) without requiring rotation of the paddle (11) to stop, which greatly increases the ease of resistance adjustment; the exercise equipment (2) also has the advantage of ease in resistance adjustment.

Description

Variable resistance device and exercise device

Technical field

The present invention relates to exercise equipment, and more particularly to a variable resistance device and exercise apparatus.

Background technique

Refining instruments need to provide some resistance to the user for muscle exercise. In almost all forms of exercise, there is a need for variable resistance in exercise equipment.

U.S. Patent No. 4,249,725 discloses an exercise apparatus comprising a rotating mechanism having movable paddles (plates) movable along a radial path, which can be changed by changing the position of these movable paddles The resistance to the rotating mechanism. The technical solution disclosed in this patent document has a problem in that the adjustment process of the position of the paddle is very complicated, and it is necessary to stop the rotation mechanism before adjusting the position of the paddle, and the position of the paddle cannot be performed in real time during the rotation of the rotation mechanism. Adjustment.

There is a need in the art for a variable resistance device and an exercise device that are convenient for resistance adjustment.

Summary of the invention

It is an object of the present invention to provide a variable resistance device that includes a rotating bracket, a paddle, and an actuating module; the actuating module is capable of positioning the paddle during rotation of the paddle with the rotating bracket Adjustment makes the resistance adjustment convenient.

It is also an object of the present invention to provide an exercise apparatus that is equipped with a variable resistance device and that is capable of adjusting the position of the paddle during rotation of the paddle with the rotating bracket, thereby facilitating resistance adjustment.

A variable resistance device for achieving the object, for connection to a power take-off end of the exercise apparatus, the variable resistance device comprising a rotating bracket, a paddle and an actuation module; the rotating bracket comprising a rotating shaft, the rotating shaft is used for connecting with the power output end, and the power output end can Driving the rotation of the rotating shaft to drive the rotating bracket to rotate;

The paddle is movably mounted on the rotating bracket and is rotatable to follow the rotating bracket to generate the resistance; the actuation module is mounted on the rotating bracket and coupled to the paddle;

The actuation module is configured to convert electrical energy into mechanical motion to drive the paddle and cause the paddle to change orientation on the rotating bracket to vary the resistance.

The variable resistance device is further characterized in that the actuating module comprises a power component and a power supply component, the power component is configured to drive the paddle and change the paddle on the rotating bracket The power supply assembly is for supplying power to the power assembly.

The variable resistance device is further characterized in that the power component comprises a motor.

The variable resistance device is further characterized in that the power supply component is an electrical energy storage device.

The variable resistance device is further characterized in that the variable resistance device further comprises a power transmission component, the power transmission component is electrically connected to the power supply component, and the power transmission component is configured to transmit power to the a power supply assembly; the power supply assembly is rotatable relative to the power transmission assembly.

The variable resistance device is further characterized in that the variable resistance device further comprises a frame, the power transmission component is fixedly mounted on the frame; the rotating bracket and the frame are rotatably Connected and rotatable relative to the frame to enable rotation of the power supply assembly relative to the power transmission assembly.

The variable resistance device is further characterized in that the power transmission assembly includes a first conductive friction member, the power supply assembly includes a second conductive friction member, and the first conductive friction member and the second conductive friction member The pieces are in contact and the first conductive friction member is rotatable relative to the second conductive friction member.

The variable resistance device is further characterized in that the power transmission component comprises a transmitting coil, the power supply component comprises a receiving coil; the transmitting coil is used for generating a changing electromagnetic field, and the receiving coil is in the changing electromagnetic field Under the action, current is generated and electrical energy is transmitted.

The variable resistance device is further characterized in that the power supply component is an electric energy generating device, and the electric energy generating device comprises a photoelectric conversion device, a thermoelectric conversion device, and a kinetic energy conversion device.

The variable resistance device is further characterized in that the variable resistance device further comprises a magnetic component, the power supply assembly includes a coil, and the coil is movable and cut relative to the magnetic component The magnetic field of the magnetic component generates a current and transfers electrical energy and supplies power to the power assembly.

The variable resistance device is further characterized in that the variable resistance device further comprises a frame, the magnetic component is fixedly mounted on the frame; the rotating bracket and the frame are rotatably Connected and rotatable relative to the gantry to move the coil relative to the magnetic assembly and to cut the magnetic field of the magnetic assembly.

The variable resistance device is further characterized in that there is a gap between the power transmission component and the power supply component.

The variable resistance device is further characterized in that the power supply assembly is fixed on the rotating shaft and can rotate along with the rotating shaft, and the power transmission assembly is rotatably connected with the rotating shaft; Rotating the power transmission assembly to rotate the power supply assembly relative to the power transmission assembly.

The variable resistance device is further characterized in that the rotating bracket is provided with a guiding groove, and the paddle is disposed in the guiding groove and can reciprocate along the guiding groove.

The variable resistance device is further characterized in that the actuation module further comprises a self-locking transmission assembly, the self-locking transmission assembly comprising an active member and a driven member, the active member being connected to the power assembly And can be driven by the power assembly, the follower is connected to the paddle;

a self-locking transmission connection between the driving member and the driven member, the driving member capable of driving the driven member to drive the paddle movement, and the locking member to lock the paddle sheet.

The variable resistance device is further characterized in that the active member is a screw member, the driven member is a nut member, and the screw member is coupled with the nut member; The nut member rotates to drive the nut member to move, thereby causing the paddle to change its orientation on the rotating bracket.

The variable resistance device is further characterized in that the screw member is rod-shaped and has a first threaded end and a second threaded end, and the nut member includes a first nut member and a second nut member, The paddle includes a first paddle and a second paddle;

The first threaded end is matingly coupled to the first nut member, the second threaded end is matingly coupled to the second nut member, and the first paddle is coupled to the first nut member, the first The two paddles are coupled to the second nut member.

The variable resistance device is further characterized in that the power component further comprises a motor and an electric a motor drive assembly, the motor is coupled to the motor drive assembly, the motor drive assembly is coupled to the self-locking drive assembly; the motor is configured to drive the motor drive assembly to move the self-locking drive assembly The active member moves to drive the follower to move.

The variable resistance device is further characterized in that the motor transmission assembly includes a first magnetic wheel and a second magnetic wheel coupled to each other, and the second magnetic wheel can follow the rotation of the first magnetic wheel Rotate;

The first magnetic wheel is coupled to the motor, and the second magnetic wheel is coupled to the active member.

The variable resistance device is further characterized in that the paddle is pivotally connected to the rotating bracket, and the paddle is rotatable relative to the rotating bracket.

The variable resistance device is further characterized in that the variable resistance device further comprises a fluid chamber filled with a fluid, the rotating bracket, the paddle and the actuation A module is disposed within the fluid chamber.

The variable resistance device is further characterized in that the actuation module further comprises a position detecting device, wherein the position detecting device is configured to detect a position of the follower relative to the active member, thereby detecting a position The orientation of the paddle on the rotating bracket.

The variable resistance device is further characterized in that the guide groove is a linear groove opened in a radial direction of the rotating bracket.

The variable resistance device is further characterized in that the rotating bracket further comprises a rotating arm fixedly connected to the rotating shaft, and the guiding groove is opened on the rotating arm.

An exercise apparatus for achieving the object, comprising a power output end for outputting an external force applied by an exerciser, the exercise apparatus further comprising a variable resistance device as described above, the variable resistance device Connected to the power take-off and provide a variable resistance to the power take-off.

The exercise device is further characterized in that the exercise device comprises a simulated rowing exercise device and a simulated bicycle exercise device.

A positive progressive effect of the present invention is that the variable resistance device provided by the present invention includes a rotating bracket, a paddle and an actuating module; the paddle is movably mounted on the rotating bracket and can follow the rotating bracket to rotate to generate resistance; the actuating module is mounted on the rotating bracket and connected to the paddle; the actuating module is used to convert electrical energy For mechanical movement, the paddle is driven and the paddle is changed in orientation on the rotating bracket, thereby changing the resistance. During the rotation of the actuation module and the paddle, the actuation module and the paddle are in a relatively stationary state. Therefore, the actuating module can adjust the position of the paddle during the rotation of the paddle to change the resistance generated by the paddle without stopping the paddle, thereby greatly improving the convenience of resistance adjustment. The exercise device provided by the invention also has the advantage of convenient resistance adjustment.

DRAWINGS

The above and other features, aspects and advantages of the present invention will become more apparent from the following description in conjunction with the appended claims

Figure 1 is a front elevational view of a variable resistance device in accordance with an embodiment of the present invention;

2 is a side view of a variable resistance device according to an embodiment of the present invention;

3 is a schematic diagram showing the positional relationship between a power transmission component and a power supply component;

4A is a schematic view showing a connection relationship between a power component and a paddle;

Figure 4B is a cross-sectional view taken along line A-A of Figure 4A;

Figure 4C is a schematic view of a fluid chamber;

4D is a schematic view of the first magnetic wheel and the second magnetic wheel;

4E is a schematic view of a position detecting device;

Figure 5 is a schematic view showing the pivotal connection of the paddle and the rotating bracket;

Figure 6 is a schematic view showing the rotary bracket, the paddle and the actuation module disposed inside the fluid chamber;

7 is a schematic view of a simulated rowing exercise device according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a simulated rowing exercise apparatus according to an embodiment of the present invention; FIG.

Figure 9 is a schematic view of an exercise apparatus according to an embodiment of the present invention;

Figure 10 is a schematic view of an exercise apparatus according to an embodiment of the present invention;

Figure 11 is a schematic view of an exercise apparatus according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of a simulated bicycle exercise apparatus according to an embodiment of the present invention.

detailed description

The invention will be further described in the following detailed description of the embodiments of the invention, A person skilled in the art can make similar promotion and deduction according to the actual application without departing from the connotation of the present invention. Therefore, the scope of the present invention should not be limited by the content of the specific embodiment.

It is to be noted that FIGS. 1 through 12 are only examples, which are not drawn to the same scale conditions, and should not be construed as limiting the scope of protection required by the present invention.

As shown in FIGS. 7, 8, 9, 10, 11, and 12, the present invention provides an exercise device 2, which may be a simulated rowing exercise device as shown in FIGS. 7 and 8, or may be as shown in FIG. The simulated cycling exercise apparatus shown. Common to these exercise devices 2 is that the exercise device 2 includes a power take-off 201 and a power input end 202 that exerts a force on the power input end 202 that is transmitted to the power take-off 201 and is typically such that the power take-off 201 The form of the rotation is output. The exercise device 2 further includes a variable resistance device 1 that is coupled to the power output terminal 201, and the variable resistance device 1 blocks the movement of the power output terminal 201, such as rotation. The force applied by the exerciser to the power input end 202 is output to the variable resistance device 1 via the power output end 201, and the variable resistance device 1 can apply a resistance to the power output end 201, and this resistance can be transmitted to the power input end 202, It affects the exercisers. The variable resistance device 1 functions to provide different sizes of resistance to accommodate different exercise personnel. For example, for a more powerful exerciser, the variable resistance device 1 can increase the resistance so that a more powerful exerciser can input a greater force at the power input end 202 to complete the exercise. For less powerful exercisers, the variable resistance device 1 can reduce the resistance so that a less powerful exerciser can perform a workout by inputting less force at the power input 202.

How to adjust the resistance is a technical difficulty in the field. As shown in FIGS. 1 to 6, in one embodiment of the present invention, the adjustment of the resistance is achieved by the variable resistance device 1. Specifically, the variable resistance device 1 includes a rotating bracket 12, a paddle 11 and an actuation module 10; the rotating bracket 12 includes a rotating shaft 121 for connecting with the power output terminal 201, and the power output terminal 201 is capable of driving the rotating shaft 121 to rotate. Thereby, the rotating bracket 12 is rotated.

The paddle 11 is movably mounted on the rotating bracket 12 and can follow the rotation of the rotating bracket 12 to generate resistance; the actuation module 10 is mounted on the rotating bracket 12 and connected to the paddle 11;

The actuation module 10 is used to convert electrical energy into mechanical motion to drive the paddle 11 and cause the paddle 11 to change orientation on the rotating bracket 12, thereby varying the resistance.

The manner in which the paddle 11 changes the orientation on the rotating bracket 12 includes changing the distance of the paddle 11 with respect to the rotating shaft 121 as shown in FIGS. 1 and 2, and further including changing the paddle 11 with respect to the rotating shaft 121 as shown in FIG. 5. angle. Specifically, the paddle 11 is pivotally coupled to the swivel bracket 12, and the paddle 11 is rotatable relative to the swivel bracket 12.

An advantage of the above design is that during the rotation of the actuation module 10 and the paddle 11, the actuation module 10 and the paddle 11 are in a relatively stationary state. Therefore, the actuation module 10 can adjust the position of the paddle 11 during the rotation of the paddle 11 to change the magnitude of the resistance generated by the paddle 11. During the adjustment of the resistance, it is not necessary to stop the paddle 11 from rotating. Greatly improved the convenience of resistance adjustment.

The actuation module 10 includes a power assembly 1011 that converts electrical energy into mechanical motion, and a power supply assembly 1012 that provides power to the power assembly 1011. Optionally, the power assembly 1011 includes a motor 1011a. The motor has the advantage of being easy to control and capable of positive and negative rotation. The power supply assembly 1012 can be an electrical energy storage device such as a battery, a storage capacitor, or the like. The power supply assembly 1012 is part of the actuation module 10 and is therefore capable of following the rotation of the actuation module 10 and remains relatively stationary with the power assembly 1011.

In addition, the power supply component 1012 may also be an electric energy generating device, and the electric energy generating device includes a photoelectric conversion device, a thermoelectric conversion device, and a kinetic energy conversion device.

In one embodiment of the invention, electrical energy can also be obtained by the principle of electromagnetic induction. Specifically, the variable resistance device 1 includes a magnetic component, and the power supply assembly 1012 includes a coil that is movable relative to the magnetic assembly and cuts a magnetic field of the magnetic assembly to generate electrical current and transfer electrical energy and to power the power assembly 1011. The variable resistance device 1 further includes a frame 14 on which the magnetic component is fixedly mounted; the rotating bracket 12 is rotatably coupled to the frame 14 and is rotatable relative to the frame 14 to move the coil relative to the magnetic component and The magnetic field of the magnetic component is cut to generate a current inside the coil.

When the power pack 1011 requires the use of an external power source, an external power source needs to be connected to the power supply assembly 1012. Since the power supply component 1012 is part of the actuation module 10 and is rotatable, if the power transmission mode of the prior art is adopted, for example, one end of one wire is connected to an external power source, and the other end is connected with When the power supply assembly 1012 is connected, the electric wire is entangled during the rotation of the power supply assembly 1012, so that the power transmission process cannot be performed. To solve this problem, the variable resistance device 1 further includes a power transmission assembly 13 electrically connected to the power supply assembly 1012, the power transmission assembly 13 for transmitting electrical energy to the power supply assembly 1012, and the power supply assembly 1012 being capable of being opposite to the power transmission assembly 13 Rotate. The power transmission assembly 13 is fixedly mounted on the frame 14; the rotating bracket 12 is rotatably coupled to the frame 14 and is rotatable relative to the frame 14 to enable the power supply assembly 1012 to rotate relative to the power transmission assembly 13.

Specifically, the power transmission assembly 13 includes a first conductive friction member, the power supply assembly 1012 includes a second conductive friction member, the first conductive friction member is in contact with the second conductive friction member, and the first conductive friction member is capable of friction with respect to the second conductive Pieces of rotation.

In another embodiment of the invention, the power transmission assembly 13 includes a transmit coil, the power supply assembly 1012 includes a receive coil, the transmit coil is used to generate a varying electromagnetic field, and the receive coil generates a current and transfers electrical energy under the varying electromagnetic field. As shown in FIG. 3, there is a gap between the power transmission assembly 13 and the power supply assembly 1012.

The variable resistance device 1 can be realized by the following specific structure. Specifically, as shown in FIGS. 1 and 2, the rotating bracket 12 has a rotating shaft 121 and a rotating arm 122, and the rotating shaft 121 is connected to the power output end 201, and the power output end 201 can drive the rotating shaft 121 to rotate;

The power supply assembly 1012 is fixed to the rotating shaft 121 and can rotate along with the rotating shaft 121. The power transmitting assembly 13 is rotatably coupled to the rotating shaft 121. The rotating shaft 121 is rotatable relative to the power transmitting assembly 13 to enable the power supply assembly 1012 to rotate relative to the power transmitting assembly 13. With continued reference to FIG. 3, optionally, the rotating shaft 121 sequentially passes through the power transmission assembly 13 and the power supply assembly 1012.

With continued reference to FIG. 2, the rotating arm 122 of the rotating bracket 12 is provided with a guide groove 122a, and the paddle 11 is disposed in the guide groove 122a and is reciprocable along the guide groove 122a. Optionally, the guide groove 122a is a linear groove opened in the radial direction of the rotating bracket 12. The embodiment of the present invention does not limit the shape of the guide groove 122a and the movement path of the paddle 11 as long as the resistance generated by the paddle 11 during the movement varies.

In one embodiment of the present invention, as shown in FIGS. 4A and 4B, the actuation module 10 further includes a self-locking transmission assembly 1013 that includes an active member 1013a and a follower member 1013b. The driving member 1013a is connected to the power module 1011 and can be driven by the power module 1011, the driven member 1013b is connected to the paddle 11; the driving member 1013a and the driven member 1013b are connected by a self-locking drive, and the driving member 1013a can drive the driven member The 1013b moves the paddle 11 and also locks the follower 1013b to lock the paddle 11.

Optionally, the driving member 1013a is a screw member, the driven member 1013b is a nut member, and the screw member is coupled with the nut member; the screw member is rotatable relative to the nut member to drive the nut member to move, thereby driving the paddle 11 to change in the rotating bracket The orientation on the 12th. The advantage of this design is that the connection of the screw member to the nut member is a form of the self-locking transmission assembly 1013, and when the nut member is subjected to a force in the axial direction along the screw member 1013, such as centrifugal force, the screw member 1013 and the nut member The relative position of 1021 is generally not changed so that the position of the paddle 11 can be maintained.

Optionally, the screw member 1013 is rod-shaped and has a first threaded end and a second threaded end, the nut member 1021 includes a first nut member and a second nut member, and the paddle 11 includes a first paddle and a second paddle; The first threaded end is mated with the first nut member, the second threaded end is mated with the second nut member, the first paddle is coupled to the first nut member, and the second paddle is coupled to the second nut member.

4B, the power assembly 1011 further includes a motor 1011a and a motor drive assembly 1011b. The motor 1011a is coupled to the motor drive assembly 1011b. The motor drive assembly 1011b is coupled to the self-locking drive assembly 1013. The motor 1011a is configured to drive the motor drive assembly 1011b. The active member 1013a that drives the self-locking transmission assembly 1013 is moved to drive the follower 1013b to move. The motor drive assembly 1011b is available in a variety of forms, such as a gear drive assembly. In one embodiment of the present invention, the motor drive assembly 1011b includes a first magnetic wheel 1011b-1 and a second magnetic wheel 1011b-2 coupled to each other, and the second magnetic wheel 1011b-2 can follow the first magnetic wheel 1011b-1. Rotating and rotating; the first magnetic wheel 1011b-1 is drivingly coupled to the motor 1011a, and the second magnetic wheel 1011b-2 is drivingly coupled to the screw member 1013.

The transmission assembly 1011b using the first magnetic wheel 1011b-1 and the second magnetic wheel 1011b-2 can effectively improve the sealing performance of the power assembly 1011. As shown in Figures 4C and 4D, the power assembly 1011 has a sealed housing 1011d that encloses a sealed chamber 1011e for placing the motor 1011a or other components. The first magnetic wheel 1011b-1 may be disposed in the sealed cavity 1011e The second magnetic wheel 1011b-2 may be disposed outside the sealed cavity 1011e, so that the integrity of the sealed casing 1011d can be ensured, and the sealing effect of the sealed casing 1011d is improved.

As shown in FIGS. 4B and 4E, the actuation module 10 further includes a position detecting device 1014 for detecting the position of the follower 1013b relative to the active member 1013a, thereby detecting the orientation of the paddle 11 on the rotating bracket 12. . Fig. 4E shows in detail the structure of the position detecting device 1014 in one embodiment of the present invention. The position detecting device 1014 includes a speed reducing device and a sensing device. The input end of the speed reducing device is connected to the paddle 11 or the driven member 1013b through a certain component. When the paddle 11 or the driven member 1013b changes position, the input end of the speed reducing device also corresponds. Movement, the movement of the input end of the deceleration device drives the output end of the deceleration device to change position, and the position detecting device 1014 detects the position of the output end of the deceleration device through the sensing device, thereby detecting the position of the paddle 11 or the follower 1013b. In one embodiment, the reduction gear in the position detecting device is a reduction gearbox 1014c. As shown in FIGS. 4B and 4E, the gear 1014b connects the first magnetic wheel 1011b-1 to the reduction box input end 1014a, inputs the movement of the reduction box input end 1014a, decelerates through the reduction gear box 1014c, and outputs it from the reduction gear box output end 1014d. By detecting the position angle of the output end 1014d of the reduction gear box, the position of the paddle 11 or the follower 1013b can be detected.

In one embodiment, as shown in FIG. 4E, the angle of the reduction gear output 1014d is detected by the Hall angle sensor 1014g to detect the position of the paddle 11 or the nut member 1021. As shown in FIG. 4E, a magnet 1014f is mounted on the output end 1014d of the reduction gear box. When the output end 1014d of the reduction gear box rotates, the magnet fixing sleeve 1014e is driven to rotate, thereby driving the magnet 1014f in the magnet fixing sleeve 1014e along with the reduction gear box. The output end 1014d rotates, and the Hall angle sensor 1014g detects the angle of the output end of the reduction gear box 1014d by detecting the angle of the magnetic field generated by the magnet 1014f; after learning the angle of the output end of the reduction gear box 1014d, the reduction ratio and the gear through the reduction gear box 1014c 1014b, the number of teeth of the gear 1014h, and the parameters of the thread on the screw can calculate the position of the paddle 11 or the nut member.

During the rotation of the paddle 11 , the resistance can be generated by the obstruction of air or fluid. When the resistance is generated by the fluid, as shown in FIG. 6, the variable resistance device further includes a fluid chamber 15, which is filled with the fluid 16, and the rotating bracket 12, the paddle 11 and the actuation module 10 are disposed in the fluid. Inside the chamber 15. Fluid 16 can be water.

The positive progressive effect of the present invention is that the variable resistance device provided by the present invention comprises a rotating bracket, a paddle and an actuating module; the paddle is movably mounted on the rotating bracket and can follow the rotation of the rotating bracket to generate resistance; The actuation module is mounted to the rotating bracket and coupled to the paddle; the actuation module is used to convert electrical energy into mechanical motion to drive the paddle and change the orientation of the paddle on the rotating bracket to vary the resistance. During the rotation of the actuation module and the paddle, the actuation module and the paddle are in a relatively stationary state. Therefore, the actuating module can adjust the position of the paddle during the rotation of the paddle to change the resistance generated by the paddle without stopping the paddle, thereby greatly improving the convenience of resistance adjustment. The exercise device provided by the invention also has the advantage of convenient resistance adjustment.

The present invention is disclosed in the above preferred embodiments, but it is not intended to limit the invention, and any person skilled in the art can make possible variations and modifications without departing from the spirit and scope of the invention. In the content of the technical solutions of the present invention, any modifications, equivalent changes, and modifications to the above embodiments in accordance with the technical scope of the present invention fall within the scope of protection defined by the claims of the present invention.

Claims

A variable resistance device for coupling to a power take-off (201) of an exercise apparatus to provide a variable resistance, characterized in that the variable resistance device (1) comprises a rotating bracket (12), a paddle ( 11) and an actuating module (10); the rotating bracket (12) includes a rotating shaft (121) for connecting with the power output end (201), and the power output end (201) The rotation of the rotating shaft (121) can be driven to drive the rotating bracket (12) to rotate;

The paddle (11) is movably mounted on the rotating bracket (12) and is rotatable following the rotating bracket (12) to generate the resistance; the actuation module (10) is mounted at the Rotating the bracket (12) and connecting with the paddle (11);

The actuation module (10) is configured to convert electrical energy into mechanical motion to drive the paddle (11) and cause the paddle (11) to change orientation on the rotating bracket (12) such that The resistance changes.
The variable resistance device of claim 1 wherein said actuation module (10) includes a power assembly (1011) and a power supply assembly (1012) for driving said paddle The sheet (11) causes the paddle (11) to change orientation on the rotating bracket (12); the power supply assembly (1012) is used to power the power assembly (1011).
The variable resistance device of claim 2 wherein said power assembly (1011) includes a motor (1011a).
The variable resistance device of claim 2 wherein said power supply assembly (1012) is an electrical energy storage device.
The variable resistance device according to claim 2, wherein said variable resistance device (1) further comprises a power transmission component (13), said power transmission component (13) and said power supply component (1012) being electrically Connected, the power transmission assembly (13) is for transmitting electrical energy to the power supply assembly (1012); the power supply assembly (1012) is rotatable relative to the power transmission assembly (13).
A variable resistance device according to claim 5, wherein said variable resistance device (1) further comprises a frame (14), said power transmission assembly (13) being fixedly mounted to said frame (14) The rotating bracket (12) is rotatably coupled to the frame (14) and rotatable relative to the frame (14) to enable the power supply assembly (1012) to be opposite to the power transmission assembly (13) Rotate.
The variable resistance device according to claim 5, wherein said power transmission assembly (13) includes a first conductive friction member, said power supply assembly (1012) includes a second conductive friction member, said first conductive friction The piece is in contact with the second conductive friction member, and the first conductive friction member is rotatable relative to the second conductive friction member.
The variable resistance device according to claim 5, wherein said power transmission assembly (13) comprises a transmitting coil, said power supply assembly (1012) comprises a receiving coil; said transmitting coil is for generating a varying electromagnetic field, The receiving coil generates a current and transmits electrical energy under the action of the varying electromagnetic field.
The variable resistance device according to claim 2, wherein said power supply unit (1012) is an electric energy generating device, and said electric energy generating device comprises a photoelectric conversion device, a thermoelectric conversion device, and a kinetic energy conversion device.
A variable resistance device according to claim 3, wherein said variable resistance device (1) further comprises a magnetic component, said power supply assembly (1012) comprising a coil, said coil being rotatable relative to said magnetic component The magnetic field of the magnetic component is moved and cut to generate electrical current and transfer electrical energy and to power the power assembly (1011).
The variable resistance device according to claim 10, wherein said variable resistance device (1) further comprises a frame (14), said magnetic component being fixedly mounted on said frame (14); a rotating bracket (12) rotatably coupled to the frame (14) and capable of opposing the frame (14) Rotating to move the coil relative to the magnetic component and to cut the magnetic field of the magnetic component.
The variable resistance device of claim 8 wherein there is a gap between the power transmission assembly (13) and the power supply assembly (1012).
The variable resistance device according to claim 5, wherein said power supply assembly (1012) is fixed to said rotating shaft (121) and rotatable following said rotating shaft (121), said power transmitting assembly (13) Rotatingly coupled to the rotating shaft (121); the rotating shaft (121) is rotatable relative to the power transmitting assembly (13) to rotate the power supply assembly (1012) relative to the power transmitting assembly (13).
The variable resistance device according to claim 2, wherein the rotating bracket (12) is provided with a guiding groove (122a), and the paddle (11) is disposed in the guiding groove (122a) It is reciprocable along the guide groove (122a).
The variable resistance device according to claim 2, wherein said actuation module (10) further comprises a self-locking transmission assembly (1013), said self-locking transmission assembly (1013) comprising an active member (1013a) and a follower (1013b), the active member (1013a) is coupled to the power assembly (1011) and can be driven by the power assembly (1011), the follower (1013b) and the paddle (11) )connection;

A self-locking transmission connection is between the driving member (1013a) and the driven member (1013b), and the driving member (1013a) can drive the driven member (1013b) to drive the paddle (11) Movement, it is also possible to lock the follower (1013b) to lock the paddle (11).
The variable resistance device according to claim 15, wherein the driving member (1013a) is a screw member, and the driven member (1013b) is a nut member, and the screw member is coupled with the nut member. The screw member is rotatable relative to the nut member to drive the nut member to move, thereby causing the paddle (11) to change orientation on the rotating bracket (12).
The variable resistance device according to claim 16, wherein said screw member is rod-shaped and has a first threaded end and a second threaded end, said nut member comprising a first nut member and a second nut member, The paddle (11) includes a first paddle and a second paddle;

The first threaded end is matingly coupled to the first nut member, the second threaded end is matingly coupled to the second nut member, and the first paddle is coupled to the first nut member, the first The two paddles are coupled to the second nut member.
The variable resistance device according to claim 15, wherein said power assembly (1011) further comprises a motor (1011a) and a motor drive assembly (1011b), said motor (1011a) and said motor drive assembly ( 1011b) connected, the motor drive assembly (1011b) is coupled to the self-locking drive assembly (1013); the motor (1011a) is configured to drive the motor drive assembly (1011b) to move the self-locking drive The active member (1013a) of the assembly (1013) moves to drive the follower (1013b) to move.
The variable resistance device according to claim 18, wherein said motor transmission assembly (1011b) includes a first magnetic wheel (1011b-1) and a second magnetic wheel (1011b-2) coupled to each other, The second magnetic wheel (1011b-2) can rotate following the rotation of the first magnetic wheel (1011b-1);

The first magnetic wheel (1011b-1) is coupled to the motor (1011a), and the second magnetic wheel (1011b-2) is coupled to the active member (1013a).
The variable resistance device according to claim 1, wherein said paddle (11) is pivotally coupled to said rotating bracket (12), and said paddle (11) is rotatable relative to said rotating bracket ( 12) Turn.
The variable resistance device according to claim 1, wherein said variable resistance device further comprises a fluid chamber (15), said fluid chamber (15) being filled with a fluid (16), said Spin A rotary bracket (12), the paddle (11) and the actuation module (10) are disposed within the fluid chamber (15).
The variable resistance device according to claim 16, wherein said actuation module (10) further comprises position detecting means (1014) for detecting said follower ( 1013b) relative to the position of the active member (1013a) to thereby detect the orientation of the paddle (11) on the rotating bracket (12).
The variable resistance device according to claim 14, wherein the guide groove (122a) is a linear groove opened in the radial direction of the rotating bracket (12).
The variable resistance device according to claim 14, wherein said rotating bracket (12) further comprises a rotating arm (122) fixedly coupled to said rotating shaft (121), said guiding groove (122a) being opened at The rotating arm (122).
An exercise apparatus comprising a power output end (201) for outputting an external force applied by an exerciser, characterized in that the exercise apparatus (2) further comprises the claims 1 to 24 A variable resistance device (1) according to any of the preceding claims, said variable resistance device (1) being coupled to said power take-off (201) and providing said power output (201) with a variable resistance.
The exercise apparatus according to claim 25, wherein said exercise apparatus comprises a simulated rowing exercise apparatus and a simulated bicycle exercise apparatus.