An adjustable resistance exercise bike

Abstract

The utility model discloses a kind of adjustable resistance spin bikes, including spin bike body, flywheel is installed on the spin bike body, the bottom bracket of the spin bike body is fixedly installed with base by bolt, one end of the base is rotatably installed with rotating shaft, the outside symmetry of the rotating shaft is rotatably installed with magnetic resistance component, by hand control adjustment handlebar rotation can be tightened to steel wire rope, can drive rotating shaft rotation, in turn can drive magnetic resistance component rotation along the central axis of rotating shaft, when specified rotation angle interval, the adjustment speed of magnetic resistance area is faster, improve the control effect to flywheel, by when using spin bike body control hand simultaneously holding the handle of spin bike body and adjustment handlebar, by hand control adjustment handlebar rotation can be tightened to steel wire rope, can drive rotating shaft rotation, manually adjustable magnetic resistance area in the use process of spin bike body, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of exercise bike technology, specifically an exercise bike with adjustable resistance. Background Technology

[0002] A spin bike is a piece of equipment with handlebars, pedals, and a saddle, but no tires. It is a common exercise equipment in gyms, similar to a bicycle. To accommodate different training intensities, existing spin bikes are equipped with adjustable resistance devices to enhance the user experience.

[0003] In the patent application "CN216456723U" entitled "A Resistance Adjustment Device and a Spinning Bicycle", the magnetic resistance component in the resistance adjustment device moves in a preset direction under the drive of the drive component, creating a non-contact magnetic resistance area with the object to be resisted, such as a flywheel. This magnetic resistance area gradually increases as the magnetic resistance component moves, thus gradually applying greater magnetic resistance to the object to be resisted. Therefore, non-contact resistance can be gradually applied to the object to be resisted, effectively adjusting the resistance of the object and achieving slow deceleration. This allows for better control of the speed of the object to be resisted, improving the user experience. However, during the process of controlling the magnetic resistance component to overlap with the flywheel, the change in the magnetic resistance area is relatively small because the magnetic resistance component moves horizontally. This results in poor control of the non-contact resistance generated by the flywheel. Furthermore, the movement of the magnetic resistance component requires control of the drive component, making it impossible to control in real time according to the user's needs during the use of the spinning bicycle, leading to a poor user experience. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable resistance exercise bike to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable resistance exercise bike, comprising an exercise bike body, a flywheel mounted on the exercise bike body, a base fixedly mounted to the bottom support of the exercise bike body by bolts, a rotating shaft rotatably mounted at one end of the base, magnetic resistance components symmetrically welded to the outer side of the rotating shaft, two magnetic resistance components respectively located on both sides of the flywheel, a steel wire rope wound around one end of the rotating shaft, and an adjusting grip rod rotatably mounted on the handlebar of the exercise bike body via a pivot pin, one end of the steel wire rope welded to the outer side of the rotating shaft, and the other end of the steel wire rope welded to the outer side of the adjusting grip rod.

[0006] As a further preferred embodiment of this technical solution, the magnetic resistance assembly includes a mounting plate and magnetic strips. The mounting plate is welded and fixed to the outside of the rotating shaft, and the magnetic strips are fixedly installed at equal intervals on the inside of the mounting plate.

[0007] As a further preferred embodiment of this technical solution, the steel wire rope is installed inside the support frame of the exercise bike body.

[0008] As a further preferred embodiment of this technical solution, a support rod is rotatably mounted on the outer side of the mounting plate via a pivot pin, and the end of the support rod away from the mounting plate is slidably mounted on the outer side of the bottom bracket of the exercise bike body.

[0009] As a further preferred embodiment of this technical solution, the bottom support of the exercise bike body is welded to both sides with limit frames, the middle of the limit frame is welded with a limit rod, a moving block is slidably installed on the outer side of the limit rod, the end of the support rod away from the mounting plate is rotatably installed on the outer side of the moving block through a shaft pin, a return spring is sleeved on the outer side of one end of the limit rod, one end of the return spring is fixedly connected to one end of the limit frame, and the other end of the return spring is fixedly connected to one end of the moving block.

[0010] As a further preferred embodiment of this technical solution, an electric push rod is fixedly installed at one top end of the base by bolts, a translation seat is fixedly installed at the moving end of the electric push rod, a rack is fixedly installed on the surface of the translation seat, and a gear is fixedly installed in the middle of the rotating shaft, the gear meshing with the rack.

[0011] As a further preferred embodiment of this technical solution, a slider is fixedly installed at the bottom of the translation seat, and a sliding groove is provided in the middle of the base, with the sliding groove slidably connected to the slider.

[0012] This utility model provides an adjustable resistance exercise bike, which has the following beneficial effects:

[0013] (1) The present invention can tighten the wire rope by adjusting the rotation of the lever by hand, which can drive the rotating shaft to rotate, and then drive the magnetic resistance component to rotate along the central axis of the rotating shaft. At this time, the magnetic resistance component and the flywheel generate a non-contact magnetic resistance area. The magnetic strip in the magnetic resistance component can apply magnetic resistance to the flywheel, thereby controlling the rotational resistance of the flywheel. Since the magnetic resistance component rotates in a circle, while the magnetic resistance component in the prior art moves in a straight line, the magnetic resistance area is adjusted slowly. Within the specified rotation angle range, the adjustment speed of the magnetic resistance area is faster, which improves the control effect of the flywheel.

[0014] (2) This utility model allows users to control their hands to simultaneously grip the handlebars and adjustment bar of the exercise bike body while using the exercise bike body. By controlling the rotation of the adjustment bar with their hands, the steel wire rope can be tightened, which can drive the rotating shaft to rotate. The magnetic resistance area can be manually adjusted during the use of the exercise bike body, making it convenient to use. Attached Figure Description

[0015] Figure 1This is one of the overall structural schematic diagrams of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0018] Figure 4 This is a partial structural schematic diagram of the present invention;

[0019] Figure 5 This is a schematic diagram of a partial explosion structure of the present invention;

[0020] In the diagram: 1. Exercise bike body; 2. Flywheel; 3. Base; 4. Axle; 5. Magnetic resistance assembly; 6. Steel cable; 7. Adjustable grip; 8. Support rod; 9. Limit frame; 10. Limit rod; 11. Moving block; 12. Return spring; 13. Electric push rod; 14. Translation seat; 15. Rack; 16. Gear; 17. Slider; 18. Slide; 51. Mounting plate; 52. Magnetic strip. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1 to 5As shown, in this embodiment, an adjustable resistance exercise bike includes an exercise bike body 1, a flywheel 2 mounted on the exercise bike body 1, and a base 3 fixedly mounted to the bottom support of the exercise bike body 1 by bolts. A rotating shaft 4 is rotatably mounted on one end of the base 3. Magnetic resistance components 5 are symmetrically welded to the outer side of the rotating shaft 4. The two magnetic resistance components 5 are respectively located on both sides of the flywheel 2. The magnetic resistance components 5 can rotate along the central axis of the rotating shaft 4 under the rotation of the rotating shaft 4. The magnetic resistance components 5 and the flywheel 2 generate a non-contact magnetic resistance area. With the pulling of the steel cable 6, the rotating shaft 4 can be controlled to rotate, and the magnetic resistance area can increase with the pulling of the steel cable 6, thereby applying non-contact resistance to the flywheel 2 in real time. The resistance is achieved by winding a steel wire rope 6 around one end of the rotating shaft 4. An adjusting grip rod 7 is rotatably mounted on the handlebars of the exercise bike body 1 via a pivot pin. One end of the steel wire rope 6 is welded to the outside of the rotating shaft 4, and the other end is welded to the outside of the adjusting grip rod 7. The magnetic resistance assembly 5 includes a mounting plate 51 and magnetic strips 52. The mounting plate 51 is welded and fixed to the outside of the rotating shaft 4, and the magnetic strips 52 are equidistantly fixed on the inside of the mounting plate 51. When using the exercise bike body 1, the user simultaneously grips the handlebars and the adjusting grip rod 7. By controlling the rotation of the adjusting grip rod 7, the steel wire rope 6 is tightened, causing the rotating shaft 4 to rotate. This, in turn, causes the magnetic resistance assembly 5 to rotate along the central axis of the rotating shaft 4. At this time, the magnetic resistance assembly... 5. A non-contact magnetic resistance area is generated between the magnetic resistance component 5 and the flywheel 2. The magnetic strip 52 in the magnetic resistance component 5 can apply magnetic resistance to the flywheel 2, thereby controlling the rotational resistance of the flywheel 2. Since the magnetic resistance component 5 rotates in a circle, while the magnetic resistance component 5 in the comparative document moves in a straight line, the magnetic resistance area is adjusted slowly. Within the specified rotation angle range, the adjustment speed of the magnetic resistance area is faster, improving the control effect on the flywheel 2. Moreover, the magnetic resistance area can be manually adjusted during the use of the exercise bike body 1, which is convenient to use. During the rotation of the magnetic resistance component 5 along the central axis of the rotating shaft 4, the rotation of the magnetic resistance component 5 will drive one end of the support rod 8 mounted on the mounting plate 51 to move. The moving block 11 at the end of the support rod 8 away from the mounting plate 51 will move along the limit frame 9. The moving block 11 moves along the trajectory of the limit frame 9. At this time, the return spring 12 is in a stretched state. When the hand control adjustment lever 7 is deactivated, the pull of the return spring 12 on the moving block 11 will cause the moving block 11 to move in the opposite direction along the trajectory of the limit frame 9. The connection between the mounting plate 51 and the moving block 11 via the support rod 8 will cause the magnetic resistance component 5 to rotate and reset, achieving the rotation and reset effect of the magnetic resistance component 5. When the magnetic resistance component 5 and the flywheel 2 remain relatively stationary, that is, when the size of the magnetic resistance area is fixed, the electric push rod 13 will drive the translation seat 14 to move. The gear 16 will mesh with the rack 15. As the translation seat 14 moves, the meshing of the gear 16 and the rack 15 will drive the gear 16 to rotate, thereby driving the rotating shaft 4 to rotate.The rotation of the controllable magnetic resistance component 5 is used to control and fix the size of the magnetic resistance area, thereby fixing the resistance of the exercise bike body 1.

[0023] like Figures 1 to 5 As shown, the steel wire rope 6 is installed inside the bracket of the exercise bike body 1.

[0024] Most of the steel wire rope 6 can be placed inside the frame of the exercise bike body 1 to maintain the aesthetic appearance of the exercise bike body 1.

[0025] like Figures 1 to 5 As shown, a support rod 8 is rotatably mounted on the outer side of the mounting plate 51 via a pivot pin. The end of the support rod 8 away from the mounting plate 51 is slidably mounted on the outer side of the bottom bracket of the exercise bike body 1. Limiting frames 9 are welded on both sides of the bottom bracket of the exercise bike body 1. A limiting rod 10 is welded to the middle of the limiting frame 9. A moving block 11 is slidably mounted on the outer side of the limiting rod 10. The end of the support rod 8 away from the mounting plate 51 is rotatably mounted on the outer side of the moving block 11 via a pivot pin. A return spring 12 is sleeved on the outer side of one end of the limiting rod 10. One end of the return spring 12 is fixedly connected to one end of the limiting frame 9, and the other end of the return spring 12 is fixedly connected to one end of the moving block 11.

[0026] The support rod 8 supports the rotation of the mounting plate 51, preventing the magnetic resistance component 5 from swaying and improving the stability of the magnetic resistance component 5 during rotation. When the magnetic resistance component 5 rotates along the central axis of the rotating shaft 4, the rotation of the magnetic resistance component 5 will cause one end of the support rod 8 mounted on the mounting plate 51 to move. The moving block 11 at the end of the support rod 8 away from the mounting plate 51 will move along the trajectory of the limit frame 9. At this time, the return spring 12 is in a stretched state. When the hand control adjustment lever 7 is turned off, the pull of the return spring 12 on the moving block 11 will cause the moving block 11 to move in the opposite direction along the trajectory of the limit frame 9. The connection between the mounting plate 51 and the moving block 11 through the support rod 8 will drive the magnetic resistance component 5 to rotate and reset, realizing the rotation and reset effect of the magnetic resistance component 5.

[0027] like Figures 1 to 5 As shown, an electric push rod 13 is fixedly installed at one top end of the base 3 by bolts. A translation seat 14 is fixedly installed at the moving end of the electric push rod 13. A rack 15 is fixedly installed on the surface of the translation seat 14. A gear 16 is fixedly installed in the middle of the rotating shaft 4. The gear 16 meshes with the rack 15. When the magnetic resistance component 5 is in the initial state, the gear 16 and the rack 15 do not mesh, and the free rotation of the rotating shaft 4 can be controlled.

[0028] When the magnetic resistance component 5 and the flywheel 2 are kept relatively stationary, that is, when the size of the magnetic resistance area is fixed, the electric push rod 13 drives the translation seat 14 to move. The gear 16 will mesh with the rack 15. As the translation seat 14 moves, the meshing of the gear 16 and the rack 15 will drive the gear 16 to rotate, which in turn drives the rotating shaft 4 to rotate. This can control the rotation of the magnetic resistance component 5, thereby controlling the size of the magnetic resistance area and fixing the resistance of the exercise bike body 1.

[0029] like Figures 1 to 5 As shown, a slider 17 is fixedly installed at the bottom of the translation seat 14, and a groove 18 is provided in the middle of the base 3, and the groove 18 is slidably connected to the slider 17.

[0030] When the translation seat 14 is moved, the translation seat 14 can be supported by the limiting sliding of the slide groove 18 and the slider 17, so as to maintain the stability of the translation seat 14 movement.

[0031] This invention provides an adjustable resistance exercise bike, the specific working principle of which is as follows:

[0032] When using the device, the user holds both the handlebars and the adjustment lever 7 of the exercise bike body 1. Controlling the adjustment lever 7 by hand tightens the steel cable 6, causing the rotating shaft 4 to rotate. This, in turn, causes the magnetic resistance component 5 to rotate along the central axis of the shaft 4. At this time, the magnetic resistance component 5 and the flywheel 2 create a non-contact magnetic resistance area. The magnetic strip 52 in the magnetic resistance component 5 applies magnetic resistance to the flywheel 2, thereby controlling the rotational resistance of the flywheel 2. Because the magnetic resistance component 5 rotates in a circle, while the magnetic resistance component 5 in the comparative document moves in a straight line, the magnetic resistance area is adjusted slowly. Within a specified rotation angle range, the adjustment speed of the magnetic resistance area is faster, improving the control effect on the flywheel 2. Furthermore, the magnetic resistance area can be manually adjusted during use of the exercise bike body 1, making it convenient to use. During the rotation of the magnetic resistance component 5 along the central axis of the shaft 4, the rotation of the magnetic resistance component 5 will drive the support rod 8 mounted on the mounting plate 51. When one end moves, the moving block 11 at the end of the support rod 8 away from the mounting plate 51 will move along the trajectory of the limit frame 9. At this time, the return spring 12 is in a stretched state. When the hand control adjustment lever 7 is canceled, the pull of the return spring 12 on the moving block 11 will cause the moving block 11 to move in the opposite direction along the trajectory of the limit frame 9. The connection between the support rod 8 and the mounting plate 51 and the moving block 11 will drive the magnetic resistance component 5 to rotate and reset, realizing the rotation and reset effect of the magnetic resistance component 5. When the magnetic resistance component 5 and the flywheel 2 are kept relatively stationary, that is, when the size of the magnetic resistance area is fixed, the electric push rod 13 is controlled to drive the translation seat 14 to move. The gear 16 will mesh with the rack 15. As the translation seat 14 moves, the meshing of the gear 16 and the rack 15 will drive the gear 16 to rotate, which in turn drives the rotating shaft 4 to rotate. The rotation of the magnetic resistance component 5 can be controlled to fix the size of the magnetic resistance area and realize the fixation of the resistance of the exercise bike body 1.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable resistance exercise bike, comprising an exercise bike body (1), wherein a flywheel (2) is mounted on the exercise bike body (1), characterized in that: The bottom support of the exercise bike body (1) is fixedly mounted with a base (3) by bolts. A rotating shaft (4) is rotatably mounted on one end of the base (3). Magnetic resistance components (5) are symmetrically welded to the outside of the rotating shaft (4). The two magnetic resistance components (5) are respectively located on both sides of the flywheel (2). A steel wire rope (6) is wound around one end of the rotating shaft (4). An adjusting grip rod (7) is rotatably mounted on the handlebar of the exercise bike body (1) by a pivot pin. One end of the steel wire rope (6) is welded to the outside of the rotating shaft (4), and the other end of the steel wire rope (6) is welded to the outside of the adjusting grip rod (7).

2. The adjustable resistance exercise bike according to claim 1, characterized in that: The magnetic resistance assembly (5) includes a mounting plate (51) and a magnetic strip (52). The mounting plate (51) is welded and fixed to the outside of the rotating shaft (4), and the magnetic strip (52) is fixedly installed at equal intervals on the inside of the mounting plate (51).

3. The adjustable resistance exercise bike according to claim 1, characterized in that: The steel wire rope (6) is located inside the support frame of the exercise bike body (1).

4. The adjustable resistance exercise bike according to claim 2, characterized in that: A support rod (8) is rotatably mounted on the outside of the mounting plate (51) via a pivot pin. The end of the support rod (8) away from the mounting plate (51) is slidably mounted on the outside of the bottom bracket of the exercise bike body (1).

5. The adjustable resistance exercise bike according to claim 4, characterized in that: The bottom support of the exercise bike body (1) has limit frames (9) welded on both sides. A limit rod (10) is welded in the middle of the limit frame (9). A moving block (11) is slidably installed on the outer side of the limit rod (10). The end of the support rod (8) away from the mounting plate (51) is rotatably installed on the outer side of the moving block (11) through a shaft pin. A return spring (12) is sleeved on the outer side of one end of the limit rod (10). One end of the return spring (12) is fixedly connected to one end of the limit frame (9), and the other end of the return spring (12) is fixedly connected to one end of the moving block (11).

6. The adjustable resistance exercise bike according to claim 1, characterized in that: An electric push rod (13) is fixedly installed at one end of the top of the base (3) by bolts. A translation seat (14) is fixedly installed at the moving end of the electric push rod (13). A rack (15) is fixedly installed on the surface of the translation seat (14). A gear (16) is fixedly installed in the middle of the rotating shaft (4). The gear (16) meshes with the rack (15).

7. A stationary bike with adjustable resistance according to claim 6, characterized in that: A slider (17) is fixedly installed at the bottom of the translation seat (14), and a groove (18) is provided in the middle of the base (3), and the groove (18) is slidably connected to the slider (17).

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