CN211962917U - Magnetic resistance fitness device - Google Patents

Abstract

The application discloses magnetic resistance fitness device, including frame, motion, drive mechanism, magnetic resistance mechanism and actuating mechanism. The movement mechanism is connected with the frame and is used for moving under the operation action of a user. And a transmission mechanism. The transmission mechanism comprises a fixed seat connected with the rack and a sliding seat connected with the fixed seat in a sliding manner. A magnetic reluctance force mechanism. The sliding seat is connected to be capable of moving along with the sliding of the sliding seat. A drive mechanism. The driving mechanism is used for driving the sliding seat to slide relative to the fixed seat so as to drive the magnetic resistance mechanism to be close to or far away from the movement mechanism, and the movement resistance of the movement mechanism is adjusted by utilizing the magnetic resistance generated by the magnetic resistance mechanism. Through the mode, this application can carry out the resistance to body-building device effectively and adjust to the different exercise intensity of adaptation.

Description

Magnetic resistance fitness device

Technical Field

The application relates to the technical field of fitness devices, in particular to a magnetic resistance fitness device.

Background

Along with the frequent overtime work of the society and the improvement of the living standard of the substances of people, people pay attention to the use of various indoor fitness equipment for fitness so as to improve the physical quality and save a large amount of time spent on outdoor exercise.

During the use process of the fitness device, the fitness devices with different resistance sizes need to be provided due to different personalized fitness requirements of users. The existing fitness device is inconvenient to adjust the resistance of the fitness device or is not easy to control the resistance, and is not beneficial to meeting the diversified fitness requirements of users.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application mainly solved provides a magnetic resistance fitness device, adjusts the resistance size of fitness device effectively.

In order to solve the technical problem, the application adopts a technical scheme that: there is provided a magnetic resistance exercise device comprising: the device comprises a frame, a motion mechanism, a transmission mechanism, a magnetic resistance mechanism and a driving mechanism. The movement mechanism is arranged on the frame and used for rotating under the operation action of a user. Drive mechanism set up in the frame, drive mechanism including connect the fixing base of frame and with fixing base sliding connection's sliding seat. The magnetic resistance mechanism is connected with the sliding seat so as to be capable of moving along with the sliding of the sliding seat. The driving mechanism is arranged on the frame and used for driving the sliding seat to slide relative to the fixed seat so as to drive the magnetic resistance mechanism to be close to or far away from the movement mechanism, and the movement resistance of the movement mechanism is adjusted by utilizing the magnetic resistance generated by the magnetic resistance mechanism.

The beneficial effect of this application is: be different from prior art's condition, this application slides for the fixing base through actuating mechanism drive sliding seat, and then drives magnetic resistance mechanism and be close to or keep away from the motion, can adjust the resistance when the motion through the magnetic resistance of magnetic resistance mechanism is nimble, can satisfy the user and use the individualized demand of magnetic resistance body-building device, the different motion intensity of adaptation. And through slider and slide complex sliding structure, can improve the stability that magnetic resistance moved, and then can improve the precision that resistance was adjusted.

Furthermore, by arranging the detection device, the moving distance of the magnetic resistance mechanism is detected, so that the magnetic resistance force generated by the magnetic resistance mechanism on the motion mechanism can be conveniently detected.

Furthermore, through the matching of the adjusting handle and the magnetic resistance mechanism, the magnetic resistance force can be adjusted in a manual mode at the same time, and the adjustment of the magnetic resistance force of the movement mechanism in an automatic and manual adjusting mode is realized.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a partial view M of the embodiment of the present application shown in FIG. 1;

FIG. 3 is a structural diagram of a detection mechanism cooperating with a transmission gear according to an embodiment of the present application;

fig. 4 is a schematic view of a matching relationship between the magnetic resistance mechanism, the transmission mechanism and the slider slide rail according to the embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Through long-term research of the inventor of the application, the individual development requirements of people on the fitness equipment are more and more obvious along with the work and life and the more and more importance on life health, for example, the requirements of sick and wounded recovering people, common fitness enthusiasts, professional sporters and the like on the resistance parameters of the fitness equipment are obviously different. How to provide good fitness equipment for users of fitness devices and provide adjustable equipment which is more in line with personal physical condition positioning and use habits is a development trend and a process which needs to be continuously improved in the whole industry. In order to solve the industrial pain point and improve the scientificity and diversity of adjustment in the use process of the magnetic resistance fitness device, at least the following embodiments are provided in the application.

Please refer to fig. 1 and fig. 2. The embodiment of the present application may provide a magnetic resistance exercise device, which may specifically include: the device comprises a frame 10, a motion mechanism 11, a transmission mechanism 12, a magnetic resistance mechanism 13 and a driving mechanism 14.

Frame 10 may serve as the main frame of the magnetic resistance exercise device. The exercise mechanism 11 may be connected to the frame 10 and the user operates the exercise mechanism 11 to move the exercise device while using the exercise apparatus. The moving mechanism 11 may be a rotating circular mechanism, such as a disk, a ring, etc., or may be a crawler-type rotating device, etc.

The transmission mechanism 12 may be disposed on the rack 10, wherein the transmission mechanism 12 includes a fixed seat 120 connected to the rack 10 and a sliding seat 121 slidably connected to the fixed seat 120. The sliding seat 121 may further be connected with the magnetic resistance mechanism 13, so that when the sliding seat 121 slides along the fixed seat 120, the magnetic resistance mechanism 13 can move along with the sliding of the sliding seat 121, and the synchronization of the movement of the sliding seat 121 and the magnetic resistance mechanism 13 is realized.

The drive mechanism 14 may be disposed on the frame 10. The driving mechanism 14 may be configured to drive the sliding seat 121 to slide back and forth relative to the fixed seat 120, so as to synchronously move the magnetic resistance mechanism 13 to approach or move away from the moving mechanism 11. The magnetic resistance mechanism 13 can adjust the movement resistance of the movement mechanism 11 using the magnetic resistance force generated by it.

For example, when the magnetic resistance mechanism 13 is driven by the sliding seat 121 to approach the moving mechanism 11, the moving mechanism 11 can cut more magnetic induction lines generated by the magnetic resistance mechanism 13 by rotation, and thus generate stronger induced current. According to the principles of physics, the kinematic mechanism 11 is able to generate a reluctance force opposite to its direction of rotation under the action of the induced current. When the magnetic induction lines generated by the magnetic resistance mechanism 13 are cut more by the moving mechanism 11, the more magnetic resistance force is generated, and the more energy is consumed by the user to overcome the magnetic resistance force so as to maintain the movement of the moving mechanism 11. Conversely, when the driving mechanism 14 drives the sliding seat 121 to drive the magnetic resistance mechanism 13 to slide in a direction away from the moving mechanism 11, the area of the magnetic induction lines passing through the moving mechanism 11 becomes smaller, and the magnetic resistance force generated by cutting the magnetic induction lines when the moving mechanism 11 moves is also reduced. Therefore, for different users, different magnetic resistance can be adjusted according to personal needs, and personalized requirements are met.

The frame 10 may be V-shaped. The frame 10 may include a first frame bar 100, a second frame bar 101, and a support bar 102. One end of the first frame bar 100 is fixedly connected with one end of the second frame bar 101, and the first frame bar 100 and the second frame bar 101 can be connected to form a V-shaped structure. The support rod 102 is supported and arranged between the first frame rod 100 and the second frame rod 101, and the first frame rod 100, the second frame rod 101 and the support rod 102 form a triangular frame 10. With this arrangement, the stability of the frame 10 can be enhanced and the safety factor of use can be improved.

The motion mechanism 11 may include a first rotating wheel 110 and a second rotating wheel 111. The first rotating wheel 110 may be used to cut the magnetic induction lines generated by the magnetic resistance mechanism 13 so that the magnetic resistance mechanism 13 generates a magnetic resistance force on the first rotating wheel 110 opposite to the rotation direction of the first rotating wheel 110. The second rotating wheel 111 is connected to the first rotating wheel 110 for synchronous rotation, and the connection between the two can be a chain transmission connection (not shown) or a belt transmission connection (not shown) or a gear engagement connection (not shown). The second rotating wheel 111 may be connected to the force-receiving mechanism 22, and a user may drive the second rotating wheel 111 to rotate axially along the rotating shaft 1110 through the force-receiving mechanism 22, and further drive the first rotating wheel 110 to rotate.

The force receiving mechanism 22 may comprise two crank pedal mechanisms 220 respectively disposed at both sides of the second rotating wheel 111. Each crank footrest 220 can include a crank 2201, pedals 2202. One end of the crank 2201 is connected to the rotating shaft 1110 of the second rotating wheel 111, for example, one end of the crank 2201 is provided with a hole and is sleeved on the rotating shaft 1110, so that the crank 2201 can rotate the rotating shaft 1110 around the axis of the rotating shaft 1110. The other end of the crank 2201 is connected to a pedal 2202. The user can rotate the second rotating wheel 111 by pedaling the pedals 2202, and further rotate the first rotating wheel 110.

In order to improve the comfort of the user using the magnetic resistance exercise device, the magnetic resistance exercise device of the present embodiment may include a seat cushion 25 disposed at the other end of the second frame bar 101. The user can be through sitting on seatpad 25, and two pedals step on two crank pedal mechanism 220 that correspond, can realize exerting oneself the effect that drives second rotating wheel 111 rotation by the shank, and then can have pertinence to resume to take exercise or strength reinforcing exercise to shank muscle. Of course, the user can also perform hand exercise by adjusting the force application manner, for example, both hands can be used to rotate the second rotating wheel 111. In other embodiments, the first rotating wheel 110 and the second rotating wheel 111 may be respectively matched with one magnetic resistance mechanism 13 at the same time, so that a user can obtain double magnetic resistance, the magnetic resistance value can be effectively improved, the problem of too small magnetic resistance is solved, and the requirements of large load and large challenge of professional body builders can be met more easily.

The magnetic resistance exercise device comprises an armrest 24 and a base 26. One end of the first frame bar 100 is fixed on the base 26, and the other end of the first frame bar 100 is connected with the handrail 24. One end of the second frame rod 101 is connected with one end of the first frame rod 100 and fixed on the base 26, and the other end of the second frame rod 101 is connected with the seat cushion 25, so that the base 26 can support the first frame rod 100 and the second frame rod 101, and when a user sits on the seat cushion 25 and uses the magnetic resistance exercise device, the user can lean on the handrail 24 with hands, and comfortably uses the exercise device.

The armrests 24 can be symmetrically fixed at one end of the first frame bar 100, and the distance between the armrests 24 can be set to be adjustable, so that a common user can adjust the distance according to actual conditions, and of course, the distance can also be set to be fixed. Further, a soft and frictional material, such as silicone, may be provided on the outer surface of the handrail 24 to allow the user to better grip the handrail 24 for exercise. The armrest 24 may be provided with a placement rack (not shown) for placing the user's personal belongings, such as a mobile phone, a wallet, etc.

The base 26 may be disposed in an "i" shape, and includes a first support bar 261, a second support bar 262, and a support bar 263. The first support bar 261 is disposed opposite to the second support bar 262, and two ends of the support bar 263 are respectively connected to the middle of the first support bar 261 and the middle of the second support bar 262 to form an "i" shaped base 26. The first rotating wheel 110 and the second rotating wheel 111 are disposed along the direction of the supporting rod 263, so that when a user sits on the seat cushion 25 of the exercise device and pedals the crank pedal mechanism 220 to exercise, the user receives supporting forces from the first supporting rod 261 and the second supporting rod 262, the amplitude of the left-right shaking of the exercise device is reduced, the user is prevented from being carelessly fallen down on the left and right sides of the ground when using the exercise device, and the personal safety of the user is guaranteed.

Referring to fig. 2 and fig. 3, the magnetic resistance exercise device includes a detecting mechanism 15, and the detecting mechanism 15 is disposed on the fixing base 120 or the frame 10 for detecting a moving distance of the sliding base 121. The sliding seat 121 is in transmission connection with the detection mechanism 15 through the gear mechanism 16, so that the sliding seat 121 can transmit the sliding distance to the detection mechanism 15 through the gear mechanism 16 when moving.

The detecting mechanism 15 may include an adjustable potentiometer 150, and the fixing base 120 is formed with a receiving cavity 1200. The adjustable potentiometer 150 is placed in the accommodating cavity 1200, and the input shaft 1500 of the adjustable potentiometer 150 penetrates through one side surface of the fixed seat 120 to be connected with the gear mechanism 16. Specifically, the gear mechanism 16 includes a transmission gear 160 and a rack 161 engaged with the transmission gear 160, the transmission gear 160 is coaxially disposed on the input shaft 1500, and the rack 161 is disposed on the sliding seat 121, so that when the sliding seat 121 slides, the rack 161 can drive the transmission gear 160 to rotate, and further drive the input shaft 1500 to rotate. The adjustable potentiometer 150 can detect the moving distance of the sliding seat 121 through the rotation information of the input shaft 1500. The distance information of the magnetic resistance mechanism 13 relative to the original value can be calculated through the distance information detected by the detection mechanism 15, and the magnetic resistance generated by the magnetic resistance mechanism 13 on the movement mechanism 11 can be calculated, so that the detection of the magnetic resistance value is realized. For part of exercisers, particularly for the personnel who need to perform recovery exercise after injury, the appropriate resistance value is selected according to the doctor or other scientific suggestions for exercising, different resistance values can be adjusted according to different exercise time, the resistance value can be adjusted in time, the appropriate resistance value can be selected according to the advice of doctors, and the important help significance is provided for the recovery exercise personnel.

Referring to fig. 2 and fig. 4, the sliding seat 121 may include a bottom plate 1211 and a side plate 1210 connected to the bottom plate 1211, the bottom plate 1211 and the side plate 1210 together surround a portion of the fixing seat 120, the bottom plate 1211 is slidably connected to the bottom of the fixing seat 120, the side plate 1210 extends from the bottom plate 1211 toward the top of the fixing seat 120 and is adjacent to the transmission gear 160, and the rack 161 is disposed on the side of the side plate 1210 away from the bottom plate 1211 in the same direction. When the driving assembly 14 drives the sliding seat 121 to slide relatively along the fixed seat 120, the rack 161 disposed on the side plate 1210 can drive the transmission gear 160 to rotate through meshing, so as to transmit the moving distance information of the sliding seat 121 after sliding to the detecting mechanism 15.

Further, the magnetic resistance exercise device may further include a slide block 27 and a slide rail 28, the slide block 27 may be slidably connected to the slide rail 28, so that the slide block 27 can slide along the slide rail 28, one of the slide block 27 and the slide rail 28 is disposed at the bottom of the fixing base 120, and the other of the slide block 27 and the slide rail 28 is disposed at the bottom plate 1211. When the sliding block 27 is connected to the bottom plate 1211, the sliding rail 28 is fixedly disposed on the fixed seat 120, and the sliding seat 121 can slide back and forth along the fixed seat 120 through the sliding relationship between the sliding block 27 and the sliding rail 28. When the sliding block 27 is fixedly connected with the fixed seat 120, the sliding rail 28 is disposed on the sliding seat 121, and the sliding seat 121 can slide back and forth relative to the fixed seat 120 through the sliding of the sliding rail 28 relative to the sliding block 27. Through the sliding connection between the sliding block 27 and the sliding rail 28, the smoothness of the connection between the sliding seat 121 and the fixed seat 120 can be improved, and the smoothness of adjusting the magnitude of the magnetic resistance can be improved.

The magnetic force resistance mechanism 13 may include two fixing plates 130 disposed opposite to each other and a connecting plate 131 connected to the two fixing plates 130, and two magnets 132 are disposed on each fixing plate 130. The connecting plate 131 is connected between one sides of the two fixing plates 130, a spacing space 134 is formed between the other sides of the two fixing plates 130, and the connecting plate 131 is fixedly connected with the sliding seat 121. In the present embodiment, two magnets 132 are connected to each fixing plate 130, and the magnets 132 disposed on the two fixing plates 130 are disposed opposite to each other, so as to generate two opposite magnetic induction lines between two opposite magnets 132, and thus under the combined action of the two opposite magnets 132, two opposite magnetic induction lines are generated in the space 134 of the present embodiment. When the magnetic resistance mechanism 13 moves to make the moving mechanism 11 partially enter the spacing space 134 to move, the magnetic induction lines in the spacing space 134 can be cut to generate the magnetic resistance force opposite to the moving direction of the moving mechanism 11. In other embodiments, each fixing plate 130 may be provided with 1 magnet, or may be fixed with 3 or 4 magnets, which may be adjusted according to actual conditions. Of course, in other embodiments, the magnetic induction lines generated by the two fixing plates 130 may be generated by an electromagnetic mechanism, and the action principle of the generated magnetic induction lines on the moving mechanism 11 is the same as that of the magnetic induction lines generated by the magnets 132 arranged oppositely.

In order to further optimize the magnetic resistance mechanism 13, the two fixing plates 130 are provided with accommodating grooves (not shown) on sides facing the spacing space 134, and the magnets 132 are accommodated in the accommodating grooves, so as to ensure that the distance between the two fixing plates 130 is reduced while the distance between the spacing space 134 is suitable for the movement mechanism 11 to enter and leave, thereby reducing the volume of the magnetic resistance mechanism 13.

Referring to fig. 1, 2 and 4, the magnetic resistance exercise device includes an elastic member 18, a pulling member 133, a first pulling wire 19, a second pulling wire 21 and an adjusting handle 20.

One end of the elastic element 18 is connected with the sliding seat 121, the other end of the elastic element 18 is connected with the frame 10, and the elastic element 18 is connected with the sliding seat 121 and is positioned far away from the movement mechanism 11 and close to the frame 10 in a natural state. When the driving mechanism 14 drives the sliding seat 121 to approach the moving mechanism 11, the elastic element 18 can be elastically deformed and approach one end of the moving mechanism 11 against the elastic force of the elastic element 18. When the driving mechanism 14 stops driving, the elastic element 18 can naturally recover the elastic deformation due to the elastic action, so that the sliding seat 121 slides away from the moving mechanism 11. The resilient member 18 may be a spring or other resilient member.

The pulling member 133 is fixedly connected to the fixing plate 130, and the pulling member 133 has a first connecting hole 1330. In this embodiment, one end of the first pulling wire 19 is connected to the driving mechanism 14, and the other end of the first pulling wire 19 is inserted through the first connection hole 1330. During the use of the exercise apparatus, the user can pull the first traction wire 19 by the driving mechanism 14, and then the traction member 133 drives the sliding seat 121 to approach the exercise mechanism 11, and meanwhile, since one end of the elastic member 18 is connected to the sliding seat 121, the elastic member 18 can overcome the effect of the elastic force to elastically deform the elastic member 18 and approach the end of the exercise mechanism 11. When the driving mechanism 14 stops driving, the first traction wire 19 will not generate traction force to the sliding seat 121 any more, i.e. the sliding seat 121 is not pulled to continue sliding in the direction approaching the moving mechanism 11 any more. Thereafter, the elastic member 18 is deformed again, and the sliding seat 121 slides toward the end away from the moving mechanism 11 by the elastic force of the elastic member 18. In other embodiments, the pulling member 133 may be disposed on the connecting plate 131.

In order to realize manual adjustment of the magnitude of the magnetic resistance, further, the magnetic resistance exercise device comprises an adjusting handle 20 and a second traction wire 21. An adjustment handle 20 is provided on the chassis 10. The pulling member 133 is formed with a second connecting hole 1331, and the second connecting hole 1331 is spaced apart from the first connecting hole 1330. One end of the second traction wire 21 is connected to the adjustment handle 20, and the other end of the second traction wire 21 is inserted into the second connection hole 1331. When the user uses the exercise device, the sliding seat 131 can be adjusted and driven to slide toward the moving mechanism 11 by adjusting the handle 20. Specifically, the user can pull the second traction wire 21 by rotating the adjustment handle 20, and then the traction member 133 is slid by the second traction wire 21. When the pulling member 133 slides, since the pulling member 133 is fixedly connected to the sliding seat 121, the sliding seat 121 is also driven to slide synchronously. When the adjustment handle 20 is rotated to a predetermined limit adjustment position, the sliding seat 121 will be slid to the closest position from the moving mechanism 11, and the moving mechanism 11 can cut the magnetic induction line of the largest area at this time. At the same time, the elastic member 18 is also elastically deformed by the sliding of the sliding seat 121. When the user stops rotating the adjustment handle 20, the elastic element 18 can drive the sliding seat 121 to slide away from the moving mechanism 11 by restoring the elastic deformation. When the elastic element 18 is fully restored to the original natural state, the moving structure 11 can cut the magnetic induction lines with the minimum area.

Because the magnetic resistance mechanism 13 is fixedly connected with the transmission mechanism 12, when the sliding seat 121 slides, the magnetic resistance mechanism 13 can be driven to slide synchronously, so that the movement resistance of the movement mechanism 11 can be adjusted by utilizing the magnetic resistance generated by the magnetic resistance mechanism 13, and the purpose of adjusting the movement resistance of the movement mechanism 11 is achieved. The sliding distance of the sliding seat 121 can be fed back to the detection mechanism 15 through the rack 161 fixed on the sliding seat 121 in combination with the meshing fit relationship of the transmission gear 160, and then the magnitude of the magnetic resistance can be calculated. The first traction wire 19 and the second traction wire 21 can be made of the same material or different materials, and in this embodiment, the first traction wire 19 and the second traction wire 21 are both drawable steel cords. In other embodiments, the first pulling wire 19 and the second pulling wire 21 may also be nylon ropes, hemp ropes, or other non-breakable ropes to ensure that the pulling mechanism 14 or the adjustment handle 20 is not broken and to ensure durability.

In order to further optimize the connection relationship between the sliding seat 121 and the elastic member 18, a support rib 17 is provided at the connection between the sliding seat 121 and the connection plate 131 to be supported between the sliding seat 121 and the connection plate 131. The support ribs 17 reinforce the connection between the sliding seat 121 and the elastic member 18 to prevent the two from coming off due to the unstable engagement. Further, a connecting port 170 is formed on the support rib 17. One end of the elastic element 18 is connected with the connection port 170 in a buckling manner so as to prevent the elastic element 18 from falling off from the supporting rib 17 in a natural state. The other end of the elastic member 18 is connected to the frame 10, and in this embodiment, the other end of the elastic member 18 is connected to the first frame bar 100, so that the direction from the end of the support rib 17 connected to the end of the first frame bar 100 in the natural state of the elastic member 18 is parallel to the sliding direction of the sliding seat 121, and the sliding direction is parallel to the elastic deformation direction.

In summary, in the field of the magnetic resistance exercise device, the magnetic resistance mechanism 13 slides back and forth by the driving action of the driving mechanism 14 or the adjusting action of the manual mechanism and the cooperation of the fixed seat 131 and the sliding seat 121 of the transmission mechanism 12, so that the magnetic resistance generated when the movement mechanism 11 moves can be flexibly adjusted, the variation of different resistance values is realized, and the personalized requirements of the user on using the magnetic resistance exercise device are met. Furthermore, by arranging the detection mechanism 15, the magnitude of the magnetic resistance generated by the magnetic resistance mechanism 13 can be detected, so that a user can select the required magnitude of resistance more scientifically and effectively, and the people especially have more special significance for the groups of injuries, illness recovery and professional athletes.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims (10)

1. A magnetic resistance exercise device, comprising:

a frame;

the movement mechanism is connected with the rack and is used for moving under the operation action of a user;

the transmission mechanism is arranged on the rack and comprises a fixed seat connected with the rack and a sliding seat connected with the fixed seat in a sliding manner;

a magnetic force resistance mechanism connected to the sliding seat to be movable with sliding of the sliding seat;

the driving mechanism is arranged on the rack and used for driving the sliding seat to slide relative to the fixed seat so as to drive the magnetic resistance mechanism to be close to or far away from the movement mechanism, and the movement resistance of the movement mechanism is adjusted by utilizing the magnetic resistance generated by the magnetic resistance mechanism.

2. A magnetic resistance exercise device as defined in claim 1, wherein:

the magnetic resistance force body-building device comprises a detection mechanism, wherein the detection mechanism is arranged on the fixed seat or the rack and is used for detecting the sliding distance of the sliding seat.

3. A magnetic resistance exercise device as defined in claim 2, wherein:

the detection mechanism comprises an adjustable potentiometer, the sliding seat is in transmission connection with an input shaft of the adjustable potentiometer through a gear mechanism, so that the sliding seat can drive the input shaft of the adjustable potentiometer to rotate through the gear mechanism when moving, the transmission gear is coaxially arranged on the input shaft of the adjustable potentiometer, and the adjustable potentiometer is enabled to detect the sliding distance of the sliding seat through the rotation information of the input shaft.

4. A magnetic resistance exercise device as claimed in claim 3 wherein:

the fixed seat is provided with an accommodating cavity, the adjustable potentiometer is accommodated in the accommodating cavity, and an input shaft of the adjustable potentiometer penetrates out of one side face of the fixed seat; the sliding seat comprises a bottom plate and a side plate connected with the bottom plate, the bottom plate and the side plate jointly surround part of the fixed seat, the bottom plate is connected with the bottom of the fixed seat in a sliding mode, and the side plate extends to one side face of the fixed seat from the bottom plate to the top of the fixed seat and is adjacent to the input shaft;

the gear mechanism comprises a transmission gear and a rack meshed and matched with the transmission gear, the transmission gear is coaxially arranged on the input shaft of the adjustable potentiometer, and the rack is arranged on the side edge, adjacent to the transmission gear, of the side plate in the same direction, so that when the sliding seat slides, the rack can drive the transmission gear to rotate and further drive the input shaft to rotate.

5. A magnetic resistance exercise device as defined in claim 4, wherein:

the magnetic resistance exercise device comprises a sliding block and a sliding rail, wherein the sliding block is connected with the sliding rail in a sliding mode so that the sliding block can slide along the sliding rail, one of the sliding block and the sliding rail is arranged at the bottom of the fixed seat, and the other of the sliding block and the sliding rail is arranged on the bottom plate.

6. A magnetic resistance exercise device as defined in claim 1, wherein:

the magnetic resistance mechanism comprises two fixing plates and a connecting plate which are oppositely arranged, the connecting plate is connected between one sides of the two fixing plates, a spacing space which is oppositely arranged with the connecting plate is formed between the other sides of the two fixing plates, and the connecting plate is fixedly connected with the sliding seat;

the magnetic resistance mechanism comprises at least two magnets which are respectively arranged on the two fixing plates and located on two sides of the interval space so as to generate magnetic induction lines in the interval space, wherein when the magnetic resistance mechanism moves to enable the motion mechanism to partially enter the interval space to rotate, the magnetic induction lines in the interval space can be cut, and then magnetic resistance opposite to the motion direction of the motion mechanism is generated.

7. The magnetic resistance exercise device of claim 6, wherein:

the magnetic resistance body-building device comprises an elastic piece, one end of the elastic piece is connected with the sliding seat, the other end of the elastic piece is connected with the rack, the sliding seat is far away from the movement mechanism when the elastic piece is in a natural state, and the driving mechanism overcomes the elasticity of the elastic piece to enable the elastic piece to generate elastic deformation when driving the sliding seat to be close to the movement mechanism.

8. The magnetic resistance exercise device of claim 7, wherein:

the magnetic resistance mechanism comprises a traction piece, the traction piece is fixedly connected with the connecting plate or the fixing plate, and the traction piece is provided with a first connecting hole;

the magnetic resistance force body-building device comprises a first traction wire, one end of the first traction wire is connected with the driving mechanism, and the other end of the first traction wire penetrates through the first connecting hole; the driving mechanism pulls the first traction wire through driving, and then the sliding seat is driven to be close to the moving mechanism through the traction piece.

9. The magnetic resistance exercise device of claim 8, wherein:

the traction piece is provided with a second connecting hole, and the second connecting hole and the first connecting hole are arranged at intervals;

the magnetic resistance force body-building device comprises an adjusting handle arranged on the frame; the magnetic resistance force body-building device comprises a second traction wire, one end of the second traction wire is connected with the adjusting handle, and the other end of the second traction wire penetrates through the second connecting hole; the adjusting handle is used for pulling the second traction wire under the operation of a user so as to drive the sliding seat to be close to the movement mechanism through the traction piece.

10. A magnetic resistance exercise device as defined in claim 1, wherein:

the motion mechanism comprises a first rotating wheel and a second rotating wheel which are arranged at intervals, the first rotating wheel is positioned on one side of the rack, the first rotating wheel and the second rotating wheel are in transmission connection, so that the first rotating wheel can drive the second rotating wheel to rotate, and the magnetic resistance mechanism is arranged close to the second rotating wheel, so that the driving mechanism can drive the sliding seat to drive the magnetic resistance mechanism to be close to or far away from the second rotating wheel;

the magnetic resistance force body-building device comprises a stress mechanism which is connected with the first rotating wheel and is used for driving the first rotating wheel to rotate under the operation of a user; the stress mechanism comprises two crank pedal mechanisms which are respectively arranged on two sides of the first rotating wheel, each crank pedal mechanism comprises a crank and a pedal, one end of each crank is rotatably connected with the corresponding pedal, the other end of each crank and the first rotating wheel are coaxially fixed on a rotating shaft, and the rotating shaft penetrates through the rack;

the rack is arranged in a V shape and comprises a first rack rod, a second rack rod and a support rod, one end of the first rack rod is fixedly connected with one end of the second rack rod, and the support rod is supported and arranged between the first rack rod and the second rack rod; the fixed seat is fixed on the first hack lever, the driving mechanism is arranged on the first hack lever, the second rotating wheel is connected to the first hack lever through a traction piece, the rotating shaft penetrates through the second hack lever, the two crank pedal mechanisms are positioned on two sides of the second hack lever, and the first rotating wheel and the second rotating wheel are in transmission connection through a belt or a chain;

the magnetic resistance fitness equipment comprises an armrest frame, a cushion and a base, wherein the armrest frame is arranged at the other end of the first frame rod, the cushion is arranged at the other end of the second frame rod, and one end of the second frame rod is fixed on the base, so that the base supports the rack.

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