Fitness equipment with wind resistance magnetic control adjustment device

Abstract

This utility model discloses a fitness device with a wind resistance magnetic control adjustment device, including a shell, a fan, an adjustment disc, a first-stop magnetic component, a magnetic component, and a magnetic resistance component. The first-stop magnetic component forms a magnetic blocking cavity with the shell, and the magnetic component is located inside the cavity. When the adjustment disc rotates, it can reduce or increase the flow area of ​​the air inlet and move the magnetic component out of or into the magnetic blocking cavity. The first-stop magnetic component blocks magnetic lines of force. When the magnetic component moves out of the magnetic blocking cavity, the magnetic resistance component rotates and cuts the magnetic lines of force, generating eddy current resistance. This utility model, by configuring an adjustment disc, a first-stop magnetic component, a magnetic component, and a magnetic resistance component on the shell, allows the adjustment disc to adjust the flow area of ​​the air inlet and move the magnetic component into or out of the magnetic blocking cavity. When the adjustment disc rotates, it can adjust the flow area of ​​the air inlet and move the magnetic component into or out of the magnetic blocking cavity. When the first-stop magnetic component moves into the magnetic blocking cavity, it blocks the magnetic lines of force. When the magnetic component moves out of the magnetic blocking cavity, it rotates and cuts the magnetic lines of force, generating eddy current resistance. This provides the fitness device with multiple resistance adjustment modes to meet user needs.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a fitness equipment with a wind resistance magnetic control adjustment device. Background Technology

[0002] Air resistance fitness equipment is a type of fitness device that increases or decreases exercise intensity by changing the amount of resistance, such as rowing machines, exercise bikes, and elliptical trainers. Existing air resistance fitness equipment mainly consists of a frame, drive unit, air housing, and impeller. The air housing is located on one side of the frame and has an air chamber and air inlet. The drive unit is movably connected to the frame (such as the rowing bar, the pedals of an exercise bike, or the pedals of an elliptical trainer). The impeller is located inside the air chamber and is driven to rotate by the drive unit; the greater the airflow, the greater the resistance. Because existing air resistance fitness equipment only adjusts resistance by controlling the airflow, the resistance adjustment method is limited and cannot meet the diverse exercise intensity needs of users. Utility Model Content

[0003] The purpose of this invention is to provide a fitness device with a wind resistance magnetic control adjustment device, so as to solve the problem that existing wind resistance fitness devices only adjust the resistance by controlling the air intake, which is a single resistance adjustment method and cannot meet the diverse exercise intensity needs of users.

[0004] This utility model is achieved through the following technical solution:

[0005] A fitness device with a wind resistance magnetic control adjustment mechanism includes a frame, on which a drive unit and a wind resistance magnetic control adjustment mechanism are mounted. The wind resistance magnetic control adjustment mechanism includes a housing, which has a wind cavity, an air inlet, and an air outlet. The wind cavity contains a wind wheel, a first magnetic baffle, and a magnetic component. The wind wheel is equipped with a magnetically controlled resistance component. The first magnetic baffle and the housing together form a magnetic baffle cavity communicating with the wind cavity. An adjustment disc is rotatably connected to the side of the housing where the air inlet is formed. When the adjustment disc rotates, it can reduce or increase the flow area of ​​the air inlet. When the adjustment disc rotates, it can drive the magnetic component to move into or out of the magnetic baffle cavity. The first magnetic baffle is used to block magnetic field lines. The magnetically controlled resistance component is used to cut magnetic field lines and generate eddy current resistance when the magnetic component moves at least partially out of the magnetic baffle cavity, as it rotates with the wind wheel.

[0006] Furthermore, the adjusting disk can be rotated relative to the outer casing to a first position, a second position, and a third position in sequence. The magnetic element extends in the rotation direction of the adjusting disk. The magnetic element gradually moves out of the magnetic blocking cavity during the process of the adjusting disk rotating from the second position to the third position, and completely moves out of the magnetic blocking cavity when the adjusting disk moves to the third position. The magnetic element gradually moves into the magnetic blocking cavity during the process of the adjusting disk rotating from the third position to the second position, and completely moves into the magnetic blocking cavity when the adjusting disk moves to the second position.

[0007] Furthermore, as the adjusting disc rotates from the first position to the second position, the flow area of ​​the air inlet gradually increases; as the adjusting disc rotates from the second position to the first position, the flow area of ​​the air inlet gradually decreases; and as the adjusting disc rotates between the second and third positions, the flow area of ​​the air inlet remains constant.

[0008] Furthermore, the outer casing has a connecting post and a first spiral strip, the first spiral strip extending spirally from the inside to the outside around the connecting post to form the air inlet, and the adjusting disc has a second spiral strip extending spirally from the inside to the outside around the connecting post, the second spiral strip being able to reduce or increase the flow area of ​​the air inlet when the adjusting disc rotates.

[0009] Furthermore, the magnetically controlled resistance element extends circumferentially around the wind turbine, and the magnetic element and the magnetically controlled resistance element are arranged opposite each other on the axial direction of the wind turbine, with the orthogonal projection of the magnetic element on the axial direction of the wind turbine falling completely on the magnetically controlled resistance element.

[0010] Furthermore, a second magnetic stop is provided between the wind turbine and the magnetically controlled resistance component. The second magnetic stop is used to block magnetic field lines. The second magnetic stop and the magnetically controlled resistance component have the same shape and size.

[0011] Furthermore, the magnetic component has a support plate connected to the adjusting plate on the side opposite to the first magnetic blocking component. The outer shell has a plurality of positioning holes spaced apart in the rotation direction of the adjusting plate on the side opposite to the support plate. The support plate has a positioning rod that is inserted into the positioning hole. When the adjusting plate rotates, the positioning rod moves from one positioning hole into another adjacent positioning hole.

[0012] Furthermore, a guide rod is provided inside the air cavity, and the extension portion of the guide rod in the rotation direction of the adjustment disc extends into the magnetic blocking cavity, and the support plate is slidably connected to the guide rod.

[0013] Furthermore, the outer shell also has a first reinforcing rib, which extends outward from the connecting post and is connected to the first spiral strip; and / or the adjusting disc has a collar and a second reinforcing rib, which passes through the connecting post and extends outward from the collar and is connected to the second spiral strip.

[0014] Furthermore, the outer casing has two stop bars spaced apart in the rotation direction of the adjustment disc, the adjustment disc has a stop rod, the stop rod moves between the two stop bars when the adjustment disc rotates and can respectively abut against the two stop bars to restrict the rotation of the adjustment disc, and the outer casing has a stop scale line between the two stop bars.

[0015] The advantage of this technical solution is that by configuring an adjustment disc, a first-stop magnetic component, a magnetic component, and a magnetically controlled resistance component on the outer shell, the first-stop magnetic component and the outer shell together form a magnetic blocking cavity. When the adjustment disc rotates, it can adjust the flow area of ​​the air inlet and drive the magnetic component to move into or out of the magnetic blocking cavity. When the magnetic component moves into the magnetic blocking cavity, the first-stop magnetic component blocks the magnetic field lines. When the magnetic component moves at least partially out of the magnetic blocking cavity, the magnetically controlled resistance component can rotate and cut the magnetic field lines to generate eddy current resistance. Therefore, the fitness device has multiple resistance adjustment modes, which can greatly meet the different exercise intensity needs of users. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a perspective view of the fitness device with wind resistance magnetic control adjustment device disclosed in Embodiment 1;

[0019] Figure 2 This is a perspective view of the wind resistance magnetic control adjustment device in Example 1;

[0020] Figure 3 This is a top view of the wind resistance magnetic control adjustment device in Embodiment 1;

[0021] Figure 4 yes Figure 3 Sectional view at point AA;

[0022] Figure 5 yes Figure 4 A magnified view of a section at point C;

[0023] Figure 6 yes Figure 4 A magnified view of a section at point D;

[0024] Figure 7 yes Figure 3 Sectional view at point BB (adjustment dial turned to first position);

[0025] Figure 8 yes Figure 3 Sectional view at point BB (adjustment dial rotated to the second position);

[0026] Figure 9 yes Figure 3Sectional view at point BB (adjustment dial rotated to third position);

[0027] Figure 10 This is an exploded view of the wind resistance magnetic control adjustment device in Example 1;

[0028] Figure 11 This is a perspective view of the outer shell in Example 1;

[0029] Figure 12 This is a perspective view of the adjustment disc in Example 1;

[0030] Figure 13 This is a perspective view of the fitness device with wind resistance magnetic control adjustment device disclosed in Embodiment 2;

[0031] Figure 14 This is a perspective view of the fitness device with wind resistance magnetic control adjustment device disclosed in Embodiment 3;

[0032] Figure 15 This is a perspective view of the fitness device with wind resistance magnetic control adjustment device disclosed in Example 4. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1: As Figure 1-12As shown, the fitness equipment with a wind resistance magnetic control adjustment device includes a frame 1, a drive component 2, and a wind resistance magnetic control adjustment device 3. The drive component 2 is movably connected to the frame 1. The wind resistance magnetic control adjustment device 3 includes a housing 301 and a fan wheel 302. The housing 301 has a wind cavity 303, an air inlet 304, and an air outlet 331. The fan wheel 302 is housed in the wind cavity 303 and is driven by the drive component 2 to rotate relative to the housing 301. An adjustment disc 305 is rotatably connected to the side of the housing 301 where the air inlet 304 is formed. When the adjustment disc 305 rotates, it can reduce or increase the flow area of ​​the air inlet 304. A first magnetic baffle 306 is provided in the wind cavity 303. The first magnetic baffle 306 is located on the housing 301. 1. On one side where the air inlet 304 is formed, the first magnetic baffle 306 and the outer shell 301 enclose a magnetic baffle cavity 307 that communicates with the air cavity 303. A magnetic element 308 is provided in the air cavity 303. When the adjusting disk 305 rotates, it can drive the magnetic element 308 to move out or into the magnetic baffle cavity 307. The first magnetic baffle 306 is used to block magnetic lines of force. The first magnetic baffle 306 is made of a metal that can block magnetic lines of force. Specifically, the first magnetic baffle 306 can be, but is not limited to, made of iron or manganese steel. A magnetically controlled resistance element 309 is provided on the impeller 302. The magnetically controlled resistance element 309 is used to cut magnetic lines of force and generate eddy current resistance when the magnetic element 308 moves out of the magnetic baffle cavity 307 at least partially.

[0035] When the magnetic component 308 is fully moved into the magnetic blocking cavity 307, the first magnetic blocking component 306 concentrates the magnetic field lines inside the material to block the magnetic field lines and prevents the magnetic field lines from overflowing out of the magnetic blocking cavity 307. When the magnetic control resistance component 309 rotates, it cannot generate eddy current resistance. Therefore, when the magnetic component 308 is fully moved into the magnetic blocking cavity 307, the resistance is determined by the flow area of ​​the air inlet 304 and the rotational speed of the impeller 302.

[0036] When the magnetic component 308 is at least partially removed from the magnetic blocking cavity 307, the magnetic field lines generated by the portion of the magnetic component 308 that is removed from the magnetic blocking cavity 307 are not constrained by the first magnetic blocking component 306. This allows the magnetically controlled resistance component 309 to cut the magnetic field lines and generate eddy current resistance when it rotates. Therefore, when the magnetic component 308 is at least partially removed from the magnetic blocking cavity 307, the resistance is determined by the magnetic component 308, the flow area of ​​the air inlet 304, and the rotational speed of the impeller 302.

[0037] The more the magnetic component 308 moves out of the magnetic blocking cavity 307, the more magnetic field lines it generates, and the greater the eddy current resistance generated when the magnetic control resistance component 309 rotates, and vice versa; the larger the flow area of ​​the air inlet 304, the greater the resistance, and vice versa; the faster the speed of the impeller 302, the greater the resistance, and vice versa.

[0038] In this embodiment, the fitness equipment disclosed is a rowing machine, and correspondingly, the drive component 2 is a pull rod.

[0039] In summary, this embodiment provides a fitness device with a wind resistance magnetic control adjustment device to solve the problem that existing wind resistance fitness devices only adjust the resistance by controlling the air intake, resulting in a single resistance adjustment method that cannot meet the diverse exercise intensity needs of users. This is mainly achieved by configuring an adjustment disc 305, a first-block magnetic element 306, a magnetic element 308, and a magnetically controlled resistance element 309 on the outer shell 301. The first-block magnetic element 306 and the outer shell 301 together form a magnetic blocking cavity 307. When the adjustment disc 305 rotates, it can adjust the flow area of ​​the air inlet 304 and move the magnetic element 308 into or out of the magnetic blocking cavity 307. When the magnetic element 308 moves into the magnetic blocking cavity 307, the magnetic element 306 blocks the magnetic lines of force. When the magnetic element 308 moves at least partially out of the magnetic blocking cavity 307, the magnetically controlled resistance element 309 rotates with the impeller 302, cutting the magnetic lines of force to generate eddy current resistance. Therefore, the fitness device has multiple resistance adjustment methods, greatly satisfying the different exercise intensity needs of users.

[0040] In Embodiment 1 of this utility model, the outer shell 301 includes an outer cover 328, a connecting ring 329 and an inner cover 330. The outer cover 328, the connecting ring 329 and the inner cover 330 are connected in sequence to form an air cavity 303. The outer cover 328 is provided with an air inlet 304 and the connecting ring 329 is provided with an air outlet 331.

[0041] In Embodiment 1 of this utility model, the adjustment disc 305 can rotate relative to the outer casing 301 to a first position, a second position, and a third position sequentially. The magnetic element 308 extends in the rotation direction of the adjustment disc 305. As the adjustment disc 305 rotates from the second position to the third position, the magnetic element 308 gradually moves out of the magnetic blocking cavity 307, and completely moves out of the magnetic blocking cavity 307 when the adjustment disc 305 reaches the third position. Conversely, as the adjustment disc 305 rotates from the third position to the second position, the magnetic element 308 gradually moves into the magnetic blocking cavity 307, and completely moves into the magnetic blocking cavity 307 when the adjustment disc 305 reaches the second position. This configuration, by arranging the adjustment disc 305 to rotate sequentially to the first, second, and third positions, and the magnetic element 308 gradually moving out of or into the magnetic blocking cavity 307 as the adjustment disc 305 rotates between the second and third positions, allows the fitness device to have multiple resistance adjustment modes, greatly satisfying users' different exercise intensity needs.

[0042] Specifically, the first position is the position marked as 1 on the gear scale line 323 in the figure, the second position is the position marked as 11 on the gear scale line 323 in the figure, and the third position is the position marked as 16 on the gear scale line 323 in the figure.

[0043] In Embodiment 1 of this utility model, the flow area of ​​the air inlet 304 gradually increases as the adjusting disc 305 rotates from the first position to the second position, and gradually decreases as the adjusting disc 305 rotates from the second position to the first position. During the rotation of the adjusting disc 305 between the second and third positions, the flow area of ​​the air inlet 304 remains constant. This configuration, by gradually increasing the flow area of ​​the air inlet 304 as it rotates from the first position to the second position, gradually decreasing the flow area as it rotates from the second position to the first position, and maintaining a constant flow area during rotation between the second and third positions, ensures that the resistance generated by the fitness device is controlled by the flow area of ​​the air inlet 304 and the rotation speed of the impeller 302 when the adjusting disc 305 rotates between the first and second positions, and by the rotation speed of the magnetic component 308 and the impeller 302 when the adjusting disc 305 rotates between the second and third positions. This provides diverse resistance adjustment methods, greatly satisfying users' different exercise intensity needs.

[0044] When the adjustment disc 305 rotates between the first and second positions, the resistance generated by the fitness device is small and gentle; when the adjustment disc 305 rotates between the second and third positions, the resistance generated by the fitness device is large and stiff.

[0045] In embodiment 1 of this utility model, the outer shell 301 has a connecting post 310 and a first spiral strip 311. The first spiral strip 311 extends spirally from the inside to the outside around the connecting post 310 to form an air inlet 304. The adjusting disk 305 has a second spiral strip 312, which extends spirally from the inside to the outside around the connecting post 310. When the adjusting disk 305 rotates, the second spiral strip 312 can reduce or increase the flow area of ​​the air inlet 304. Specifically, when the adjusting disk 305 rotates to the first position, the second spiral strip 312... The first spiral 312 is offset from the first spiral 311 and coincides with the first spiral 311 when the adjusting disk 305 rotates to the second position, so that the flow area of ​​the air inlet 304 gradually decreases or increases when the adjusting disk 305 rotates between the first and second positions; specifically, during the rotation of the adjusting disk 305 between the second and third positions, the second spiral 312 always coincides with the first spiral 311, so that the flow area of ​​the air inlet 304 remains unchanged during the rotation of the adjusting disk 305 between the second and third positions. The above configuration involves arranging the outer casing 301 with a connecting post 310 and a first spiral strip 311 extending spirally from the inside to the outside around the connecting post 310 to form an air inlet 304, and arranging the adjusting disk 305 with a second spiral strip 312 extending spirally from the inside to the outside around the connecting post 310. When the adjusting disk 305 rotates, the second spiral strip 312 gradually blocks the air inlet 304, thereby reducing the flow area of ​​the air inlet 304, and conversely, increases the flow area of ​​the air inlet 304. This allows the adjusting disk 305 to reduce or increase the flow area of ​​the air inlet 304 when it rotates. The adjustment structure is ingenious, simple, and easy to implement.

[0046] In Embodiment 1 of this utility model, the magnetically controlled drag element 309 extends circumferentially around the impeller 302. The magnetic element 308 and the magnetically controlled drag element 309 are arranged opposite each other in the axial direction of the impeller 302, and the orthogonal projection of the magnetic element 308 in the axial direction of the impeller 302 falls entirely on the magnetically controlled drag element 309. By configuring the magnetic element 308 so that it is opposite to the magnetically controlled drag element 309 in the axial direction of the impeller 302, and its orthogonal projection in the axial direction of the impeller 302 falls entirely on the magnetically controlled drag element 309, eddy current drag can be effectively generated when the magnetically controlled drag element 309 rotates and cuts magnetic field lines.

[0047] In Embodiment 1 of this utility model, a second magnetic baffle 313 is provided between the impeller 302 and the magnetically controlled resistance component 309. The second magnetic baffle 313 is used to block magnetic field lines. Specifically, the second magnetic baffle 313 is made of a metal capable of blocking magnetic field lines, and the second magnetic baffle 313 and the magnetically controlled resistance component 309 have the same shape and size. The second magnetic baffle 313 may be made of iron or manganese steel, but is not limited to, and the magnetically controlled resistance component 309 may be made of aluminum, but is not limited to, aluminum. By configuring the second magnetic baffle 313 between the impeller 302 and the magnetically controlled resistance component 309, the magnetic field lines generated by the magnetic component 308 moving out of the magnetic baffle cavity 307 are concentrated between the magnetic component 308 and the magnetically controlled resistance component 309, so that when the magnetically controlled resistance component 309 rotates and cuts the magnetic field lines, it can effectively generate eddy current resistance.

[0048] In Embodiment 1 of this utility model, a first magnetic stop 306 is disposed between a magnetic component 308 and a magnetically controlled resistance component 309. A support plate 314 connected to an adjusting disc 305 is provided on the side of the magnetic component 308 opposite to the first magnetic stop 306. A plurality of positioning holes 315 spaced apart in the rotation direction of the adjusting disc 305 are provided on the side of the outer casing 301 opposite to the support plate 314. A positioning rod 316 is provided on the support plate 314 to engage with the positioning holes 315. When the adjusting disc 305 rotates, the positioning rod 316 moves from one positioning hole 315 into an adjacent positioning hole 315. This arrangement, by configuring a plurality of positioning holes 315 spaced apart in the rotation direction of the adjusting disc 305 on the outer casing 301 and positioning rods 316 to engage with the positioning holes 315 on the support plate 314, ensures stable assembly between the adjusting disc 305 and the outer casing 301 after rotation, preventing deviation from the target position.

[0049] In Embodiment 1 of this utility model, a guide rod 317 is provided inside the air cavity 303. The extension portion of the guide rod 317 in the rotation direction of the adjusting disk 305 extends into the magnetic blocking cavity 307, and the support plate 314 is slidably connected to the guide rod 317. This arrangement, by placing the guide rod 317 inside the air cavity 303, with the extension portion of the guide rod 317 in the rotation direction of the adjusting disk 305 extending into the magnetic blocking cavity 307 and slidably connected to the support plate 314, ensures that the magnetic component 308 moves stably and smoothly into or out of the magnetic blocking cavity 307.

[0050] In Embodiment 1 of this utility model, the outer shell 301 further includes a first reinforcing rib 318, which extends outward from the connecting post 310 and connects to the first spiral strip 311. Preferably, there are several first reinforcing ribs 318, which are spaced apart circumferentially from the connecting post 310. This configuration, by setting the outer shell 301 to include first reinforcing ribs 318 extending outward from the connecting post 310 and connecting to the first spiral strip 311, gives the first spiral strip 311 good structural strength.

[0051] In Embodiment 1 of this utility model, the adjusting disc 305 has a collar 319 and a second reinforcing rib 320. The collar 319 passes through the connecting post 310, and the second reinforcing rib 320 extends outward from the collar 319 and connects to the second spiral strip 312. Preferably, there are several second reinforcing ribs 320, which are spaced apart circumferentially from the collar 319. This configuration, by having the adjusting disc 305 with a collar 319 passing through the connecting post 310 and second reinforcing ribs 320 extending outward from the collar 319 and connecting to the second spiral strip 312, ensures a stable connection between the adjusting disc 305 and the connecting post 310, and provides the second spiral strip 312 with good structural strength.

[0052] In Embodiment 1 of this utility model, the outer casing 301 has two stop bars 321 spaced apart in the rotation direction of the adjusting disk 305. The adjusting disk 305 has a stop rod 322. When the adjusting disk 305 rotates, the stop rod 322 moves between the two stop bars 321 and can abut against the two stop bars 321 respectively to restrict the rotation of the adjusting disk 305. The outer casing 301 is provided with a stop scale line 323 between the two stop bars 321. Specifically, when the adjusting disk 305 rotates to the first position, it abuts against one stop bar 321, and when the adjusting disk 305 rotates to the third position, it abuts against the other stop bar 321. The above arrangement, by configuring two stop bars 321 on the outer casing 301, configuring a stop scale line 323 between the two stop bars 321, and configuring a stop rod 322 abutting against the two stop bars 321 on the adjusting disk 305, allows the user to operate accurately when adjusting the flow area of ​​the air inlet 304.

[0053] In Embodiment 1 of this utility model, there are two first spiral bars 311 and two second spiral bars 312, each corresponding to the first. The two first spiral bars 311 are symmetrical about the axis of the connecting post 310, and the two second spiral bars 312 are symmetrical about the axis of the connecting post 310. This arrangement, by configuring two first spiral bars 311 and two second spiral bars 312 in a one-to-one correspondence, ensures good adjustment effect when the adjusting disc 305 rotates.

[0054] In Embodiment 1 of this utility model, the connecting post 310 has a detachably fixed central portion 324 and a connecting portion 325. A first spiral strip 311 is integrally formed on the central portion 324 and extends from the inside to the outside around the central portion 324. An adjusting disc 305 passes through the connecting portion 325 and abuts against the central portion 324 and the connecting portion 325 respectively. By configuring the connecting post 310 to have a detachably fixed central portion 324 and a connecting portion 325, and by having the adjusting disc 305 pass through the connecting portion 325 and abut against the central portion 324 and the connecting portion 325 respectively, the adjusting disc 305 is stably assembled with the outer casing 301 and is easy to assemble and disassemble.

[0055] In Embodiment 1 of this utility model, a damping ring 300 is provided between the collar 319 and the center portion 324 and the connecting portion 325. This arrangement, by placing the damping ring 300 between the collar 319 and the center portion 324 and the connecting portion 325, ensures that the adjusting disc 305 can be stably positioned at the target location after rotating to its intended position.

[0056] In Embodiment 1 of this utility model, a positioning ring 326 is protruding from the surface of the outer shell 301 and is arranged around the first spiral strip 311. The adjusting disk 305 is attached to the side of the outer shell 301 where the first spiral strip 311 is formed and is provided with a positioning groove 327 for the positioning ring 326 to be inserted. The above arrangement, by configuring the positioning ring 326 around the first spiral strip 311 on the surface of the outer shell 301 and configuring the positioning groove 327 on the adjusting disk 305 for the positioning ring 326 to be inserted, makes the adjusting disk 305 and the outer shell 301 stably assembled and rotate smoothly.

[0057] Example 2: Figure 13 As shown, the difference between this and Embodiment 1 is that the fitness device is an exercise bike, and correspondingly, the drive component 2 is a pedal.

[0058] Example 3: As Figure 14 As shown, the difference between this and Embodiment 1 is that the fitness device is an exercise bike, and correspondingly, the drive component 2 is a pedal.

[0059] Example 4: Figure 15 As shown, the difference between this and Embodiment 1 is that the fitness equipment is an elliptical machine, and correspondingly, the drive component 2 is a pedal.

[0060] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0061] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered as protected by this utility model.

Claims

1. A fitness machine with a wind resistance magnetic control adjustment device, comprising a frame (1), characterized in that, The frame (1) is equipped with a drive unit (2) and a wind resistance magnetic control adjustment device (3). The wind resistance magnetic control adjustment device (3) includes a housing (301). The housing (301) has a wind cavity (303), an air inlet (304), and an air outlet (331). The wind cavity (303) is equipped with a wind wheel (302), a first magnetic baffle (306), and a magnetic component (308). The wind wheel (302) is equipped with a magnetic resistance component (309). The first magnetic baffle (306) and the housing (301) together form a magnetic baffle cavity (307) that communicates with the wind cavity (303). The first magnetic blocking element (306) is used to block magnetic field lines. The outer shell (301) has an adjustment disk (305) rotatably connected to one side of the air inlet (304). When the adjustment disk (305) rotates, it can reduce or increase the flow area of ​​the air inlet (304). When the adjustment disk (305) rotates, it can drive the magnetic element (308) to move into or out of the magnetic blocking cavity (307). The magnetic control resistance element (309) is used to cut magnetic field lines and generate eddy current resistance when the magnetic element (308) moves at least partially out of the magnetic blocking cavity (307) along with the wind turbine (302).

2. The fitness device with wind resistance magnetic control adjustment device according to claim 1, characterized in that, The adjusting disk (305) can rotate relative to the outer shell (301) to the first position, the second position and the third position in sequence. The magnetic element (308) extends in the rotation direction of the adjusting disk (305). The magnetic element (308) gradually moves out of the magnetic blocking cavity (307) during the process of the adjusting disk (305) rotating from the second position to the third position, and completely moves out of the magnetic blocking cavity (307) when the adjusting disk (305) moves to the third position. The magnetic component (308) gradually moves into the magnetic blocking cavity (307) as the adjusting disk (305) rotates from the third position to the second position, and is completely moved into the magnetic blocking cavity (307) when the adjusting disk (305) moves to the second position.

3. The fitness device with wind resistance magnetic control adjustment device according to claim 2, characterized in that, As the regulating disc (305) rotates from the first position to the second position, the flow area of ​​the air inlet (304) gradually increases. As the regulating disc (305) rotates from the second position to the first position, the flow area of ​​the air inlet (304) gradually decreases. As the regulating disc (305) rotates between the second and third positions, the flow area of ​​the air inlet (304) remains constant.

4. The fitness device with wind resistance magnetic control adjustment device according to claim 1, characterized in that, The outer casing (301) has a connecting post (310) and a first spiral strip (311). The first spiral strip (311) extends spirally from the inside to the outside around the connecting post (310) to form the air inlet (304). The adjusting disk (305) has a second spiral strip (312). The second spiral strip (312) extends spirally from the inside to the outside around the connecting post (310). When the adjusting disk (305) rotates, the second spiral strip (312) can reduce or increase the flow area of ​​the air inlet (304).

5. The fitness device with wind resistance magnetic control adjustment device according to claim 1, characterized in that, The magnetic resistance element (309) extends circumferentially around the wind turbine (302), and the magnetic element (308) and the magnetic resistance element (309) are arranged opposite each other in the axial direction of the wind turbine (302). The orthogonal projection of the magnetic element (308) in the axial direction of the wind turbine (302) falls completely on the magnetic resistance element (309).

6. The fitness device with wind resistance magnetic control adjustment device according to claim 1, characterized in that, A second magnetic stop (313) is provided between the wind turbine (302) and the magnetic resistance component (309). The second magnetic stop (313) is used to block magnetic field lines. The second magnetic stop (313) and the magnetic resistance component (309) have the same shape and size.

7. The fitness device with wind resistance magnetic control adjustment device according to claim 1, characterized in that, The magnetic component (308) has a support plate (314) connected to the adjusting disk (305) on the side opposite to the first magnetic blocking component (306). The outer shell (301) has a plurality of positioning holes (315) spaced apart in the rotation direction of the adjusting disk (305) on the side opposite to the support plate (314). The support plate (314) has a positioning rod (316) that is inserted into the positioning hole (315). When the adjusting disk (305) rotates, the positioning rod (316) moves from one positioning hole (315) into another adjacent positioning hole (315).

8. The fitness device with wind resistance magnetic control adjustment device according to claim 7, characterized in that, The air cavity (303) is provided with a guide rod (317), and the extension portion of the guide rod (317) in the rotation direction of the adjustment disk (305) extends into the magnetic blocking cavity (307). The support plate (314) is slidably connected to the guide rod (317).

9. The fitness device with wind resistance magnetic control adjustment device according to claim 4, characterized in that, The outer shell (301) also has a first reinforcing rib (318), which extends outward from the connecting post (310) and is connected to the first spiral strip (311); And / or the adjusting disc (305) has a collar (319) and a second reinforcing rib (320), the collar (319) passing through the connecting post (310), and the second reinforcing rib (320) extending outward from the collar (319) and connected to the second spiral strip (312).

10. The fitness device with wind resistance magnetic control adjustment device according to claim 1, characterized in that, The outer casing (301) has two stop bars (321) spaced apart in the rotation direction of the adjusting disk (305). The adjusting disk (305) has a stop rod (322). When the adjusting disk (305) rotates, the stop rod (322) moves between the two stop bars (321) and can abut against the two stop bars (321) respectively to restrict the rotation of the adjusting disk (305). The outer casing (301) is provided with a stop scale line (323) between the two stop bars (321).

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