TWI678224B - Resistance adjustment system - Google Patents

Abstract

The creation is a resistance adjustment system, which is arranged on a frame with a flywheel. The resistance adjustment system includes a braking mechanism, a linkage mechanism, a manual drive mechanism, and an electric drive mechanism provided on the frame. The linkage mechanism is provided with The magnetic resistance component, the manual driving mechanism is connected to the braking mechanism and can drive the braking mechanism to generate braking resistance to the flywheel. The electric driving mechanism is connected to the linkage mechanism and can drive the magnetic resistance component of the linkage mechanism to approach the flywheel and generate resistance. The resistance adjustment system The manual driving mechanism and the electric driving mechanism independently control the brake mechanism and the linkage mechanism, so that the brake mechanism and the magnetoresistive element operate independently without affecting each other, so that the creative resistance adjustment system can simultaneously have high resistance adjustment accuracy and Can stop the flywheel function immediately.

Description

Resistance adjustment system

This creation is a resistance adjustment system, especially a resistance adjustment system for installation on exercise equipment such as exercise bikes.

Existing exercise equipment such as exercise bikes will provide a resistance adjustment system, so that users can control resistance according to their own physical condition and training needs to achieve the best fitness and training results.

The current resistance adjustment system includes a resistance mechanism and a driving mechanism. The resistance mechanism is pivotally arranged on the frame of an exercise bike. The resistance mechanism includes a shell seat, a plurality of magnetoresistive elements, and a brake pad. Pivotally connected to the frame, the plurality of magnetoresistive elements and the brake pads are disposed on the housing seat, the driving mechanism is disposed on the frame and connected to the resistance mechanism, and the driving mechanism can drive the The resistance mechanism rotates.

If the user needs to increase the resistance, the user can operate the driving mechanism so that the driving mechanism drives the magnetoresistive element and brake pad of the resistance mechanism to approach the flywheel of the exercise bike, and approaches the flywheel through the magnetoresistive element and simultaneously Increasing the force with which the brake pads are pressed against the flywheel to increase the resistance; if the user needs to reduce the resistance, the user can also operate the drive mechanism to make the drive mechanism drive the magnetic resistance element and the brake pad of the resistance mechanism away The flywheel of the exercise bike is separated from the flywheel through the magnetoresistive element and at the same time reduces the force of pressing the brake pad against the flywheel to reduce the resistance.

The resistance adjustment system can be divided into electric type and manual type according to the type of the driving mechanism. The electric type resistance adjustment system mainly drives the resistance mechanism through a driving motor to adjust the resistance or stop the flywheel rotation in real time. ; And the manual resistance adjustment system is mainly connected to the torque mechanism by a linearly movable shaft, thereby providing the user with the ability to adjust the resistance by turning the shaft, or by pressing the shaft in real time Stop the flywheel from turning.

Among them, although the electric resistance adjustment system has good resistance adjustment accuracy and can provide users with precise resistance control, there may be problems that cannot be stopped immediately when emergency stopping the flywheel; while the manual resistance adjustment system is in resistance adjustment The accuracy is relatively insufficient, but when the user stops the flywheel in an emergency, he can directly stop the flywheel by pressing the shaft.

In addition, at present, whether it is an electric resistance adjustment system or a manual resistance adjustment system, the resistance mechanism is controlled by a single driving mechanism, and the flywheel resistance is provided by the magnetic resistance element and the brake pad of the resistance mechanism at the same time. Since the brake pads mainly provide flywheel resistance by contacting the flywheel, when the brake pads are worn, the accuracy of the resistance adjustment will be affected.

The main purpose of this creation is to provide a resistance adjustment system, in order to improve the current electric resistance adjustment system and manual resistance adjustment system. Both brake pads and magnetoresistive elements provide flywheel resistance at the same time. It is difficult to have high resistance adjustment accuracy at the same time. And the function of stopping the flywheel immediately, and when the brake pad is worn, the accuracy of the resistance adjustment will be affected.

In order to achieve the purpose of the previous disclosure, the resistance adjustment system of this creation is used to be installed on a frame with a flywheel. The resistance adjustment system includes: a brake mechanism, which is used to be installed on the frame, and the brake mechanism includes a A brake disc, which is arranged on the frame; a linkage mechanism which is arranged on the frame, the linkage mechanism comprises a shell seat which is pivotally arranged on the frame; at least A magnetoresistive component is arranged on the housing seat of the linkage mechanism, the magnetoresistive component includes two magnetoresistive elements, and the two magnetoresistive elements are respectively located on opposite two outer sides of the flywheel; a manual driving mechanism, which is It is arranged on the frame. The manual driving mechanism includes a linearly movable shaft which can selectively drive the braking mechanism so that the brake disc contacts the flywheel; and an electric driving mechanism which is The electric driving mechanism is provided on the frame, and the electric driving mechanism has a linear moving component and a driving motor. The driving motor is connected to the linear moving component and can drive the linear moving component to move axially and linearly. Drive mechanism can approach the flywheel assembly selectively driven by the reluctance of the interlocking mechanism.

The creative resistance adjustment system can provide users with resistance control when using exercise equipment such as exercise bikes. When the user wants to adjust the resistance, the user can operate the electric drive mechanism to control the linkage mechanism and the magnetoresistive component. Adjust the resistance; when the user wants to stop the flywheel immediately, he can control the brake pads of the brake mechanism by operating the manual drive mechanism, so that the brake pads can be pressed against the flywheel, so that the flywheel can stop rotating immediately.

Among them, this creative resistance adjustment system has the following advantages: 1. Improve the resistance adjustment accuracy: The resistance adjustment system mainly controls the linkage mechanism and the magnetoresistive component through the electric drive mechanism to provide flywheel resistance. The method can effectively improve the accuracy of resistance adjustment. In addition, the method of providing flywheel resistance only through the magnetoresistive component can effectively avoid the error caused by the wear of the component, thereby achieving the effect of improving the resistance adjustment accuracy. 2. Improving the effect of stopping the flywheel in real time: The braking mechanism of the resistance adjustment system is mainly controlled by the manual driving mechanism, and by manually operating the manual driving mechanism, the user can control the depression of the vehicle by himself. The force of the brake pads enables the flywheel to stop rotating, thereby effectively avoiding the effect of stopping the flywheel due to the wear of the brake pads when the flywheel is stopped urgently.

In summary, the creative resistance adjustment system mainly uses the two driving mechanisms of the manual driving mechanism and the electric driving mechanism to independently control the braking mechanism and the magnetoresistive element, so that the braking mechanism and the magnetoresistive element They operate independently without affecting each other, so that the creative resistance adjustment system can simultaneously have the function of high resistance adjustment accuracy and the function of real-time stopping the flywheel.

Please refer to FIG. 1 to FIG. 11, which are various preferred embodiments of the creative resistance adjustment system. Among them, the various preferred embodiments are all used to be disposed on a frame 60 having a flywheel 61 and all include a The brake mechanism 10A ~ 10H, a linkage mechanism 20A ~ 20H, at least one magnetoresistive component 30, a manual drive mechanism 40A ~ 40H, and an electric drive mechanism 50A ~ 50H.

The brake mechanisms 10A to 10H are arranged on the frame 60. The brake mechanisms 10A to 10H include brake plates 11A to 11H, and the brake plates 11A to 11H are arranged on the frame 60.

As shown in FIG. 3 and FIG. 4, the linkage mechanism 20A-20H is used to be installed on the frame 60. The linkage mechanism 20A-20H includes a shell seat 21A ~ 21H, and the shell seat 21A ~ 21H is pivoted on The frame 60.

As shown in FIG. 3 and FIG. 4, the magnetoresistive component 30 is disposed on the housing bases 21A to 21H of the linkage mechanism 20A to 20H. The magnetoresistive component 30 includes two magnetoresistive elements 31, and the two magnetoresistive elements 31 They are respectively located on two opposite outer sides of the flywheel 61.

As shown in FIG. 3 and FIG. 4, the manual driving mechanism 40A to 40H is provided on the frame 60. The manual driving mechanism 40A to 40H includes a shaft 11A to 11H capable of linear movement, and the shaft 41A ~ 41H can selectively drive the brake mechanism 10A ~ 10H, so that the brake pads 11A ~ 11H can selectively contact the flywheel 61.

As shown in FIG. 3 and FIG. 4, the electric driving mechanism 50A-50H is used to be disposed on the frame 60. The electric driving mechanism 50A-50H has a linear moving component 51A-51H and a driving motor 52A-52H. The driving motors 52A to 52H are connected to the linear moving components 51A to 51H and can drive the linear moving components 51A to 51H to move linearly in the axial direction. The electric driving mechanism 50A to 50H can be selectively driven by the linkage mechanism 20A to 20H The magnetoresistive component 30 is selectively approached to the flywheel 61.

Among them, as shown in FIGS. 4 to 11, the various embodiments are mainly based on the connection modes of the brake mechanisms 10A to 10H, the linkage mechanisms 20A to 20H, the manual drive mechanisms 40A to 40H, and the electric drive mechanisms 50A to 50H. Details of the changes will be described below for the detailed structure of various embodiments of the creative resistance adjustment system.

As shown in FIG. 4, in the first preferred embodiment of the creative resistance adjustment system, the manual driving mechanism 40A includes a shaft seat 42 and a shaft return spring 43, and the shaft seat 42 is disposed on the frame 60. The shaft 41A is axially movably disposed in the shaft seat 42, the shaft return spring 43 is disposed in the shaft seat 42, and the shaft 41A of the manual driving mechanism 40A is pivotally provided in the brake mechanism 10A, the shaft resetting spring 43 can drive the shaft 41A to reset, so that the brake pad 11A is separated from the flywheel 61, the driving motor 52A of the electric driving mechanism 50A is a linear motor, and the linear moving component 51A includes a core rod 511A, the core rod 511A is passed through the driving motor 52A, the core rod 511A can be controlled by the driving motor 52A, and linearly moves axially relative to the driving motor 52A, the driving motor 52A is located in front of the manual driving mechanism 40A The core rod 511A is in contact with the housing seat 21A of the linkage mechanism 20A. The linkage mechanism 20A includes a magnetoresistive return spring 22 which is disposed on the frame 60 and is connected to the housing seat 21A. , The magnetoresistive return spring 22 can drive the casing base 21A to recover Position to keep the magnetoresistive component 30 away from the flywheel 61.

As shown in FIG. 5, in the second preferred embodiment of the creative resistance adjustment system, the shaft 41B of the manual driving mechanism 40B is abutted against the brake mechanism 10B. The brake mechanism 10B includes a brake return spring 12. The brake return spring 12 is arranged on the frame 60 and is connected to the brake pad 11B. The brake return spring 12 can drive the brake pad 11B to reset, so that the brake pad 11B is separated from the flywheel 61, the electric drive mechanism The driving motor 52B of 50B is a linear motor. The linear moving component 51B includes a core rod 511B. The core rod 511B passes through the driving motor 52B. The core rod 511B can be controlled by the driving motor 52B and is opposite to the driving motor 52B. It moves linearly in the axial direction. The driving motor 52B is located in front of the manual driving mechanism 40B. The core rod 511B abuts the housing seat 21B of the linkage mechanism 20B. The linkage mechanism 20B includes a magnetoresistive return spring 22. The resistance return spring 22 is disposed on the frame 60 and is connected to the housing base 21B. The magnetic resistance return spring 22 can drive the housing base 21B to reset, so that the magnetic resistance component 30 is far away from the flywheel 61.

As shown in FIG. 6, in the third preferred embodiment of the creative resistance adjustment system, the manual driving mechanism 40C includes a shaft seat 42 and a shaft return spring 43, and the shaft seat 42 is disposed on the frame 60. The shaft 41C is disposed in the shaft seat 42 so as to be axially movable. The shaft return spring 43 is provided in the shaft seat 42. The shaft 41C of the manual driving mechanism 40C is pivotally provided in the braking mechanism. 10C, the shaft return spring 43 can drive the shaft 41C to reset, so that the brake pad 11C is separated from the flywheel 61, the drive motor 52C is located in front of the manual drive mechanism 40C, and the electric drive mechanism 50C is driven The motor 52C has a mandrel 512C. The linear moving component 51C includes a moving block 513C. The moving block 513C is screwed on the mandrel 512C and can move axially and linearly relative to the driving motor 52C. The linkage mechanism 20C includes a The connecting rod 23, two ends of which are respectively pivotally connected to the housing block 21C and the moving block 513C of the electric driving mechanism 50C.

As shown in FIG. 7, in a fourth preferred embodiment of the creative resistance adjustment system, the manual driving mechanism 40D includes a shaft seat 42 and a shaft return spring 43, and the shaft seat 42 is disposed on the frame 60. The shaft 41D is axially movably disposed in the shaft seat 42, the shaft return spring 43 is disposed in the shaft seat 42, and the shaft 41D of the manual driving mechanism 40D is pivotally provided in the braking mechanism. 10D, the shaft reset spring 43 can drive the shaft 41D to reset, so that the brake pad 11D is separated from the flywheel 61, the drive motor 52D is located in front of the manual drive mechanism 40D, and the electric drive mechanism 50D is driven The motor 52D has a mandrel 512D. The linear moving assembly 51D includes a moving block 513D. The moving block 513D is screwed on the mandrel 512D and can perform axial linear movement relative to the driving motor 52D. The housing of the linkage mechanism 20D The seat 21D is pivotally disposed on the moving block 513D of the electric driving mechanism 50D, and the driving motor 52D is pivotally disposed on the frame 60.

As shown in FIG. 8, in a fifth preferred embodiment of the creative resistance adjustment system, the shaft 41E of the manual driving mechanism 40E is abutted against the brake mechanism 10E. The brake mechanism 10E includes a brake return spring 12. The brake return spring 12 is provided on the frame 60 and is connected to the brake pad 11E. The brake return spring 12 can drive the brake pad 11E to reset, so that the brake pad 11E is separated from the flywheel 61, and the electric drive mechanism The driving motor 52E of 50E is a linear motor and is located in front of the manual driving mechanism 40E. The linear moving component 51E includes a core rod 511E. The core rod 511E passes through the driving motor 52E, and the core rod 511E can be controlled by the The driving motor 52E is linearly moved axially relative to the driving motor 52E. The driving motor 52E is pivotally connected to the frame 60, and the housing seat 21E of the linkage mechanism 20E is pivotally connected to the bottom end of the core rod 511E.

As shown in FIG. 9, in a sixth preferred embodiment of the creative resistance adjustment system, the shaft 41F of the manual driving mechanism 40F is abutted against the brake mechanism 10F, and the brake mechanism 10F includes a brake return spring 12 The brake return spring 12 is arranged on the frame 60 and is connected to the brake pad 11F. The brake return spring 12 can drive the brake pad 11F to reset, so that the brake pad 11F is separated from the flywheel 61, the electric drive mechanism The driving motor 52F of 50F is a linear motor and is located in front of the manual driving mechanism 40F. The linear moving component 51F includes a core rod 511F. The core rod 511F passes through the driving motor 52F, and the core rod 511F can be controlled by the The driving motor 52F is linearly moved axially relative to the driving motor 52F. The top end of the core rod 511F is pivotally connected to the frame 60, and the housing seat 21F of the linkage mechanism 20F is pivotally connected to the driving motor 52F.

As shown in FIG. 10, in a seventh preferred embodiment of the creative resistance adjustment system, the shaft 41G of the manual driving mechanism 40G abuts against the brake mechanism 10G, which includes a brake return spring 12 The brake return spring 12 is provided on the frame 60 and is connected to the brake pad 11G. The brake return spring 12 can drive the brake pad 11G to reset, and release the brake pad 11G from the flywheel 61. The drive motor 52G is Located behind the manual drive mechanism 40G, and the drive motor 52G of the electric drive mechanism 50G has a mandrel 512G. The linear moving component 51G includes a moving block 513G, which is screwed on the mandrel 512G and It can move axially and linearly with respect to the drive motor 52G. The housing seat 21G of the linkage mechanism 20G is pivotally mounted on the moving block 513G of the electric drive mechanism 50G, and the drive motor 52G is pivotally mounted on the frame 60.

As shown in FIG. 11, in the eighth preferred embodiment of the creative resistance adjustment system, the manual driving mechanism 40H includes a shaft seat 42 and a shaft return spring 43. The shaft seat 42 is provided on the frame 60. The shaft 41H is provided in the shaft seat 42 so as to be axially movable. The shaft return spring 43 is provided in the shaft seat 42. The shaft 41H of the manual drive mechanism 40H is pivotally provided in the brake mechanism 10H. The shaft resetting spring 43 can drive the shaft 41H to reset, so that the brake disc 11H is separated from the flywheel 61. The driving motor 52H is located behind the manual driving mechanism 40H. The driving motor 52H of the electric driving mechanism 50H It has a mandrel 512H. The linear moving assembly 51H includes a moving block 513H. The moving block 513H is screwed on the mandrel 512H and can perform axial linear movement relative to the driving motor 52H. The linkage mechanism 20H includes a connecting rod 23. The two ends of the connecting rod 23 are pivotally connected to the housing block 21H and the moving block 513H of the electric drive mechanism 50H, respectively.

This creative resistance adjustment system mainly uses the two driving mechanisms of the manual driving mechanism 40A to 40H and the electric driving mechanism 50A to 50H to independently control the braking mechanism 10A to 10H and the magnetoresistive element 31, so that the braking mechanism 10A ~ 10H and the magnetoresistive element 31 operate independently without affecting each other. The user can control the electric drive mechanism 50A ~ 50H to adjust the resistance of the flywheel 61 provided by the magnetoresistive component 30, or through By operating the manual driving mechanism 40A ~ 40H, the braking mechanism 10A ~ 10H is pressed against the flywheel 61, so that the flywheel 61 can stop rotating immediately.

As shown in Figures 4 and 12, taking the first preferred embodiment of the creative resistance adjustment system as an example, when the user wants to increase resistance, the user can control the linearity by controlling the electric drive mechanism 50A The moving component 51A drives the linkage mechanism 20A to rotate, so that the magnetoresistive component 30A approaches the flywheel 61, and the effect of the magnetic force of the magnetoresistive component 30 on the flywheel 61 increases, thereby achieving the effect of increasing resistance; when When the user wants to reduce the resistance, the user can control the electric drive mechanism 50A to control the linear movement component 51A to drive the linkage mechanism 20A to rotate the magnetoresistive component 30 away from the flywheel 61, the magnetic The effect of the magnetic force of the resistance component 30 on the flywheel 61 is reduced, thereby achieving the effect of reducing resistance.

As shown in FIG. 13, if the user needs to stop the flywheel 61 immediately, the user can directly press the shaft 41A of the manual driving mechanism 40A, and the shaft 41A can directly push the brake pad 11A against the brake pad 11A. The flywheel 61 can stop rotating immediately.

Among them, by adjusting the resistance by means of electric driving, the accuracy of the resistance adjustment can be effectively improved, and the way of providing the resistance of the flywheel 61 only through the magnetoresistive component 30 can effectively avoid the error caused by the wear of the components, and thus increase the resistance. The effect of adjusting precision.

In addition, by manually operating the manual driving mechanism 40A ~ 40H, the user can control the force of pressing down the brake pads 11A ~ 11H by himself, so that the flywheel 61 can be stopped surely, thereby effectively avoiding When the flywheel 61 needs to be stopped in an emergency, the effect of stopping the flywheel 61 is affected by the wear of the brake pads 11A to 11H.

In summary, this creative resistance adjustment system mainly uses the two driving mechanisms of the manual driving mechanism 40A to 40H and the electric driving mechanism 50A to 50H to independently control the braking mechanism 10A to 10H and the interlocking mechanism 20A to 20H. Therefore, the braking mechanisms 10A to 10H and the magnetoresistive component 30 operate independently without affecting each other, so that the creative resistance adjustment system can simultaneously have the functions of high resistance adjustment accuracy and the function of real-time stopping the flywheel.

10A ~ 10H‧‧‧Brake mechanism

11A ~ 11H‧‧‧Brake pads

12‧‧‧brake return spring

20A ~ 20H‧‧‧Interlocking mechanism

21A ~ 21H‧‧‧shell

22‧‧‧Magnetoresistive return spring

23‧‧‧ connecting rod

30‧‧‧Magnetoresistive components

31‧‧‧Magnetoresistive element

40A ~ 40H‧‧‧Manual drive mechanism

41A ~ 41H‧‧‧Shaft

42‧‧‧Shaft

43‧‧‧ shaft return spring

50A ~ 50H‧‧‧Electric drive mechanism

51A ~ 51H‧‧‧ Linear moving components

511A, 511B, 511E, 511F

512C, 512D, 512G, 512H‧‧‧ mandrel

513C, 513D, 513G, 513H‧‧‧‧moving block

52A ~ 52H‧‧‧Drive motor

60‧‧‧frame

61‧‧‧flywheel

FIG. 1 is a three-dimensional overall schematic view of a first preferred embodiment of the creative resistance adjustment system provided on a vehicle frame. FIG. 2 is a schematic side view of FIG. 1. FIG. 3 is a partial exploded view of the first preferred embodiment of the creative resistance adjustment system. FIG. 4 is a schematic side view of a first preferred embodiment of the creative resistance adjustment system. FIG. 5 is a schematic side view of a second preferred embodiment of the creative resistance adjustment system. FIG. 6 is a schematic side view of a third preferred embodiment of the creative resistance adjustment system. FIG. 7 is a schematic side view of a fourth preferred embodiment of the creative resistance adjustment system. FIG. 8 is a schematic side view of a fifth preferred embodiment of the creative resistance adjustment system. FIG. 9 is a schematic side view of a sixth preferred embodiment of the creative resistance adjustment system. FIG. 10 is a schematic side view of a seventh preferred embodiment of the creative resistance adjustment system. FIG. 11 is a schematic side view of an eighth preferred embodiment of the creative resistance adjustment system. FIG. 12 is a schematic diagram of a resistance adjustment method of a first preferred embodiment of the creative resistance adjustment system. FIG. 13 is a schematic diagram of an operation method of stopping the flywheel in the first preferred embodiment of the creative resistance adjustment system.

Claims (14)

A resistance adjustment system is configured to be disposed on a frame having a flywheel. The resistance adjustment system includes: a brake mechanism configured to be disposed on the frame, the brake mechanism including a brake pad, the brake pad The linkage mechanism is arranged on the frame; the linkage mechanism is arranged on the frame, the linkage mechanism includes a shell seat, the shell seat is pivotally arranged on the frame; at least one magnetoresistive component, which The magneto-resistive component includes two magneto-resistive elements, which are respectively located on the opposite two outer sides of the flywheel; a manual drive mechanism, which is used to be disposed on the vehicle. On the frame, the manual driving mechanism includes a linearly movable shaft which can selectively drive the braking mechanism so that the brake pads contact the flywheel; and an electric driving mechanism which is arranged on the vehicle On the frame, the electric driving mechanism has a linear moving component and a driving motor. The driving motor is connected to the linear moving component and can drive the linear moving component to move axially and linearly. The electric driving mechanism can be selected. Proximity of the flywheel assembly to drive the reluctance through the linkage mechanism. The resistance adjustment system according to claim 1, wherein the manual driving mechanism includes a shaft seat and a shaft return spring, the shaft seat is provided on the frame, and the shaft shaft is provided on the shaft seat so as to be axially movable. Inside, the shaft return spring is arranged in the shaft seat, the shaft of the manual drive mechanism is pivoted to the brake mechanism, and the shaft return spring can drive the shaft to return to disengage the brake disc from the flywheel. . The resistance adjustment system according to claim 1, wherein the shaft of the manual drive mechanism abuts the brake mechanism, the brake mechanism includes a brake return spring, the brake return spring is disposed on the frame and is connected to the brake mechanism. Brake pads, the brake return spring can drive the brake pads to reset, and disengage the brake pads from the flywheel. The resistance adjustment system according to claim 2, wherein the driving motor of the electric driving mechanism is a linear motor, and the linear moving component includes a core rod, and the core rod is controlled by the driving motor through the driving motor. The drive motor is linearly moved axially relative to the drive motor. The resistance adjustment system according to claim 3, wherein the driving motor of the electric driving mechanism is a linear motor, and the linear moving component includes a core rod, and the core rod is controlled by the driving motor through the driving motor. The drive motor is linearly moved axially relative to the drive motor. The resistance adjustment system according to claim 2, wherein the driving motor of the electric driving mechanism has a mandrel, and the linear moving component includes a moving block, the moving block is screwed on the mandrel and can be opposite to the driving motor. Perform axial linear movement. The resistance adjustment system according to claim 3, wherein the driving motor of the electric driving mechanism has a mandrel, and the linear moving component includes a moving block, the moving block is screwed on the mandrel and can be opposite to the driving motor. Performing axial linear movement, the housing seat of the linkage mechanism is pivotally arranged on the moving block of the electric drive mechanism, and the drive motor is pivotally arranged on the frame. The resistance adjustment system according to claim 4 or 5, wherein the driving motor is located in front of the manual driving mechanism, the core rod is abutted against a housing seat of the linkage mechanism, and the linkage mechanism includes a magnetic resistance return spring The magnetoresistive reset spring is arranged on the frame and connected to the shell seat, and the magnetoresistive reset spring can drive the shell seat to be reset to keep the magnetoresistive component away from the flywheel. The resistance adjustment system according to claim 5, wherein the driving motor is pivotally connected to the frame, and a housing seat of the linkage mechanism is pivotally connected to a bottom end of the core rod. The resistance adjustment system according to claim 5, wherein a top end of the core rod is pivotally connected to the frame, and a housing seat of the linkage mechanism is pivotally connected to the driving motor. The resistance adjustment system according to claim 6, wherein the linkage mechanism includes a connecting rod, and two ends of the connecting rod are respectively pivotally connected to the housing seat and the moving block of the electric driving mechanism. The resistance adjustment system according to claim 6, wherein a housing seat of the linkage mechanism is pivotally provided on a moving block of the electric drive mechanism, and the drive motor is pivotally provided on the frame. The resistance adjustment system according to any one of claims 9 to 12, wherein the driving motor is located in front of the manual driving mechanism. The resistance adjustment system according to claim 7 or 11, wherein the driving motor is located behind the manual driving mechanism.