Elliptical machine resistance adjusting device

Abstract

The utility model belongs to the technical field of elliptical machines, and particularly relates to a resistance adjusting device of an elliptical machine. The utility model provides a resistance adjusting device for an elliptical machine, and aims to solve the problem that the flywheel resistance of the elliptical machine in the prior art cannot be adjusted. The elliptical machine resistance adjusting device comprises a rack, a flywheel is rotationally connected to the rack, and a pedal assembly for driving the flywheel to rotate is further arranged on the rack; the rack is further provided with a resistance adjusting assembly for adjusting the rotation resistance of the flywheel. The resistance adjusting assembly is arranged, the resistance adjusting assembly comprises the movable friction plate arranged on the flywheel and the static friction plate arranged on the rack, when the resistance of the flywheel needs to be adjusted, the static friction plate makes contact with the movable friction plate, the resistance of the flywheel is adjusted through friction force, and therefore different requirements of different users are met. When the movable friction plate is separated from the static friction plate, the flywheel has the minimum resistance, and when the movable friction plate is in contact with the static friction plate, the flywheel has the large resistance.

Description

Technical Field

[0001] The utility model belongs to the technical field of elliptical machines, and particularly relates to a resistance adjusting device for an elliptical machine. Background Art

[0002] With the gradual improvement of people's living standards, people pay more and more attention to their own health. Due to the limitations of fitness time and location, consumers have an increasing demand for indoor fitness equipment. Among many indoor fitness equipment, the elliptical machine is a quite common cardiorespiratory fitness exercise training tool, which can guide the user's feet to make circular motions on an approximately elliptical closed track. Such a motion mode is closer to the foot movements when walking or running, and the impact on the user's joints is also relatively small. Therefore, it is widely loved by users.

[0003] The existing elliptical machine in the prior art includes a frame and a flywheel rotatably connected to the frame. A foot pedal assembly is also arranged on the frame, and the foot pedal assembly drives the flywheel to rotate. However, the resistance during the movement of the flywheel on the existing elliptical machine is determined and cannot be adjusted according to the exercise habits of different users, thus unable to meet the different needs of users. Summary of the Utility Model

[0004] The utility model provides a resistance adjusting device for an elliptical machine, aiming at solving the problem that the flywheel resistance of the existing elliptical machine cannot be adjusted.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] A resistance adjusting device for an elliptical machine, including a frame, a flywheel rotatably connected to the frame, and a foot pedal assembly arranged on the frame for driving the flywheel to rotate;

[0007] A resistance adjusting component for adjusting the rotation resistance of the flywheel is further arranged on the frame. The resistance adjusting component includes a dynamic friction plate fixed on the flywheel. The dynamic friction plate is annular and coaxially arranged with the flywheel;

[0008] The resistance adjusting component further includes a mounting disc installed on the frame. A static friction plate is arranged on the mounting disc. The static friction plate is slidably connected to the mounting disc. A push screw for pushing the static friction plate to contact the dynamic friction plate is arranged on the mounting disc. A guide post is arranged on the static friction plate, and a guide hole cooperating with the guide post is arranged on the mounting disc. The axis of the guide hole is parallel to the axis of the mounting disc;

[0009] An elastic member for pulling the static friction plate away from the dynamic friction plate is further arranged between the static friction plate and the mounting disc.

[0010] Further improved solution: There are at least two static friction plates, and all the static friction plates are evenly arranged along the circumferential direction of the dynamic friction plate.

[0011] Based on the above technical solution: There are at least two static friction plates, and all the static friction plates are evenly arranged along the circumferential direction of the dynamic friction plate. Usually, by making different numbers of static friction plates contact the dynamic friction plate, different resistances can be obtained for the flywheel, so that the resistance of the flywheel has a wider adjustment range.

[0012] Further improved solution: At least two guide posts are arranged on each static friction plate.

[0013] Based on the above technical solution: At least two guide posts are arranged on each static friction plate. When the static friction plate contacts the dynamic friction plate, the guide posts need to bear a large acting force. Therefore, the more the number of guide posts, the greater the acting force borne by the static friction plate, and the less likely the static friction plate is to be damaged.

[0014] Further improved solution: The elastic member is a spring. The spring is sleeved on the guide post, and each guide post is sleeved with the elastic member. One end of the elastic member is fixed on the mounting plate, and the other end of the elastic member is fixed on the static friction plate.

[0015] Based on the above technical solution: The elastic member is a spring. The spring is easy to process and not easy to be damaged, reducing the use cost of the elastic member and prolonging the service life of the elastic member. The spring is sleeved on the guide post, and the guide post also has the function of guiding the spring. During long-term use, the spring is not easy to bend, further prolonging the service life of the spring.

[0016] Further improved solution: A threaded hole matching with the push screw is arranged on the mounting plate. A spherical head is arranged at one end of the push screw in contact with the static friction plate, and an operation head for facilitating the rotation of the push screw is arranged at the other end of the push screw away from the static friction plate.

[0017] Based on the above technical solution: A spherical head is arranged at one end of the push screw in contact with the surface friction plate. The push screw and the static friction plate are in point contact, and the static friction plate and the push screw are not easy to wear.

[0018] Further improved solution: The operation head and the push screw are of an integral structure, and the cross-sectional shape of the operation head is polygonal.

[0019] Based on the above technical solution: The operation head and the push screw are of an integral structure, making the push screw easy to process. The cross-sectional shape of the operation head is polygonal, and the operation head can be conveniently matched with a wrench, so that the resistance adjustment assembly is easy to operate.

[0020] Further improved solution: A wear-resistant layer is provided on the side of the static friction plate close to the dynamic friction plate, and patterns for increasing the friction coefficient of the wear-resistant layer are provided on the wear-resistant layer.

[0021] Based on the above technical solution: A wear-resistant layer is provided on the side of the static friction plate close to the dynamic friction plate. The wear-resistant layer can be conveniently replaced, making the static friction plate easy to maintain.

[0022] Further improved solution: The wear-resistant layer is bonded to the static friction plate.

[0023] Based on the above technical solution: The wear-resistant layer is bonded to the static friction plate. The connection strength between the wear-resistant layer and the static friction plate is high, and the wear-resistant layer and the static friction plate are not easily separated.

[0024] Further improved solution: Patterns for increasing the friction coefficient of the dynamic friction plate are provided on the side of the dynamic friction plate close to the static friction plate.

[0025] Based on the above technical solution: Patterns for increasing the friction coefficient of the dynamic friction plate are provided on the side of the dynamic friction plate close to the static friction plate. After the dynamic friction plate and the static friction plate come into contact, greater resistance can be generated, enabling the resistance adjustment component to have a wider adjustment range.

[0026] Further improved solution: The dynamic friction plate and the flywheel are of an integral structure.

[0027] Based on the above technical solution: The dynamic friction plate and the flywheel are of an integral structure. The connection strength between the dynamic friction plate and the flywheel is high, and the dynamic friction plate is not easily separated from the flywheel.

[0028] The beneficial effects of the present utility model are as follows:

[0029] By providing a resistance adjustment component in the present utility model, the resistance adjustment component includes a dynamic friction plate provided on the flywheel and a static friction plate provided on the machine frame. When it is necessary to adjust the resistance of the flywheel, the static friction plate can be brought into contact with the dynamic friction plate, and the resistance of the flywheel can be adjusted by using the frictional force, so as to meet the different needs of different users. When the dynamic friction plate and the static friction plate are separated, the flywheel has the minimum resistance. When the dynamic friction plate and the static friction plate are in contact, the flywheel has a greater resistance. At the same time, the contact pressure between the dynamic friction plate and the static friction plate can be adjusted by pushing the screw rod to more precisely adjust the resistance of the flywheel. Description of the Drawings

[0030] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative work, other related drawings can also be obtained based on these drawings.

[0031] Figure 1 is a schematic diagram of the installation position of a resistance adjustment device for an elliptical machine on the elliptical machine.

[0032] Figure 2 is an exploded view of a resistance adjustment device for an elliptical machine of the present utility model.

[0033] Figure 3 is a schematic diagram of the installation method of the static friction plate on the mounting plate.

[0034] Figure 4 is Figure 3 the right view of.

[0035] Explanation of reference numerals in the figure:

[0036] 1 - frame; 2 - flywheel; 21 - resistance adjustment component; 211 - dynamic friction plate; 22 - mounting plate; 23 - static friction plate; 24 - push screw; 241 - operation head; 25 - guide post; 251 - elastic member; 3 - foot pedal component. Specific embodiments

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present utility model.

[0038] Refer to Figures 1 to 4 , a resistance adjustment device for an elliptical machine, including a frame 1, a flywheel 2 is rotatably connected to the frame 1, and a foot pedal component 3 for driving the flywheel 2 to rotate is further provided on the frame 1;

[0039] A resistance adjustment component 21 for adjusting the rotation resistance of the flywheel 2 is further provided on the frame 1. The resistance adjustment component 21 includes a dynamic friction plate 211 fixed to the flywheel 2. The dynamic friction plate 211 is annular, and the dynamic friction plate 211 is coaxially arranged with the flywheel 2;

[0040] The resistance adjustment assembly 21 further includes a mounting disc 22 mounted on the frame 1. A static friction plate 23 is provided on the mounting disc 22. The static friction plate 23 is slidably connected to the mounting disc 22. A push screw 24 for pushing the static friction plate 23 to contact the dynamic friction plate 211 is provided on the mounting disc 22. A guide post 25 is provided on the static friction plate 23. A guide hole cooperating with the guide post 25 is provided on the mounting disc 22. The axis of the guide hole is parallel to the axis of the mounting disc 22.

[0041] An elastic member 251 for pulling the static friction plate 23 away from the dynamic friction plate 211 is further provided between the static friction plate 23 and the mounting disc 22.

[0042] Specifically: A shaft body can be provided on the frame 1. The flywheel 2 is rotatably connected to the shaft body. The foot pedal assembly 3 can drive the flywheel 2 to rotate through belt drive or chain drive.

[0043] A rolling bearing can be provided between the flywheel 2 and the shaft body.

[0044] The mounting disc 22 can be welded to the shaft body, or the mounting disc 22 can also be an integral structure with the shaft body, or the mounting disc 22 can also be fixedly connected to the shaft body by screws.

[0045] The mounting disc 22 does not rotate relative to the shaft body, and the rotating shaft does not rotate relative to the frame 1, so that the static friction plate 23 is stationary relative to the frame 1.

[0046] Reference Figures 1 to 4 , specifically: There are at least two static friction plates 23, and all the static friction plates 23 are uniformly arranged along the circumferential direction of the dynamic friction plate 211.

[0047] The more the number of the static friction plates 23 is set, the higher the adjustment accuracy of the resistance adjustment assembly 21 is. Therefore, the static friction plates 23 can be set to more numbers according to requirements.

[0048] For example, the number of the static friction plates 23 can be 5, 10, etc.

[0049] Wherein: At least two guide posts 25 are provided on each static friction plate 23.

[0050] The elastic member 251 is a spring. The spring is sleeved on the guide post 25. The elastic member 251 is sleeved on each guide post 25. One end of the elastic member 251 is fixed on the mounting disc 22, and the other end of the elastic member 251 is fixed on the static friction plate 23.

[0051] One end of the spring can be welded or bonded to the static friction plate 23, and the other end of the spring can be welded or bonded to the mounting disc 22.

[0052] The guide post 25 and the static friction plate 23 can be of an integral structure.

[0053] Reference Figures 1 to 4 , wherein: a screw hole matching with the push screw 24 is arranged on the mounting plate 22, a spherical head is arranged at one end of the push screw 24 contacting the static friction plate 23, and an operation head 241 facilitating the rotation of the push screw 24 is arranged at one end of the push screw 24 far from the static friction plate 23.

[0054] On the same static friction plate 23, the push screw 24 is located between two guide posts 25, so that the static friction plate 23 is uniformly stressed when being pushed by the push screw 24.

[0055] Specifically: the operation head 241 and the push screw 24 are of an integral structure, and the cross-sectional shape of the operation head 241 is polygonal. The cross-sectional shape of the operation head 241 can be a regular hexagon, so that the operation head 241 can be conveniently matched with a wrench.

[0056] Specifically: a wear-resistant layer is arranged on one side of the static friction plate 23 close to the dynamic friction plate 211, and patterns for increasing the friction coefficient of the wear-resistant layer are arranged on the wear-resistant layer. The patterns can be arranged in a grid shape.

[0057] The wear-resistant layer is bonded to the static friction plate 23.

[0058] Specifically: patterns for increasing the friction coefficient of the dynamic friction plate 211 are arranged on one side of the dynamic friction plate 211 close to the static friction plate 23. The patterns can be arranged in a grid shape.

[0059] The dynamic friction plate 211 and the flywheel 2 are of an integral structure. The dynamic friction plate 211 can also be fixed to the flywheel 2 by screws.

[0060] The working principle of this embodiment:

[0061] When the static friction plate 23 is disengaged from the flywheel 2, the resistance of the flywheel 2 is the smallest.

[0062] When it is necessary to increase the resistance of the flywheel 2, rotate the push screw 24 to enable a static friction plate 23 to have a reasonable contact pressure with the dynamic friction plate 211, and utilize the frictional force between the dynamic friction plate 211 and the static friction plate 23 to enable the flywheel 2 to obtain a greater resistance.

[0063] When it is necessary to further increase the resistance of the flywheel 2, the number of static friction plates 23 contacting the dynamic friction plate 211 can be gradually increased, so that the flywheel 2 obtains a greater resistance.

[0064] When all the static friction plates 23 are in contact with the dynamic friction plate 211, the flywheel 2 has the maximum resistance.

[0065] The present utility model is not limited to the above optional embodiments. On the premise of not conflicting with each other, various schemes can be arbitrarily combined; anyone can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as the technical solutions fall within the scope defined by the claims of the present utility model, they all fall within the protection scope of the present utility model.

Claims

1. An elliptical machine resistance adjustment device, characterized in that: It includes a frame, on which a flywheel is rotatably connected, and a pedal assembly for driving the flywheel to rotate is also provided on the frame; A resistance adjustment assembly for adjusting the rotation resistance of the flywheel is also provided on the frame. The resistance adjustment assembly includes a dynamic friction plate fixed on the flywheel. The dynamic friction plate is annular and is coaxially arranged with the flywheel; The resistance adjustment assembly further includes a mounting disc installed on the frame. A static friction plate is arranged on the mounting disc. The static friction plate is slidably connected to the mounting disc. A push screw for pushing the static friction plate into contact with the dynamic friction plate is arranged on the mounting disc. Guide columns are arranged on the static friction plate, and guide holes matching the guide columns are arranged on the mounting disc. The axis of the guide hole is parallel to the axis of the mounting disc; An elastic member for pulling the static friction plate away from the dynamic friction plate is also arranged between the static friction plate and the mounting disc.

2. The resistance adjustment device of an elliptical machine according to claim 1, characterized in that: There are at least two static friction plates, and all the static friction plates are evenly arranged along the circumferential direction of the dynamic friction plate.

3. The resistance adjustment device of an elliptical machine according to claim 2, characterized in that: At least two of the guide columns are arranged on each static friction plate.

4. The resistance adjusting device of an elliptical machine according to claim 3, characterized in that: The elastic member is a spring. The spring is sleeved on the guide column, and the elastic member is sleeved on each guide column. One end of the elastic member is fixed on the mounting disc, and the other end of the elastic member is fixed on the static friction plate.

5. An elliptical machine resistance adjustment device according to claim 4, characterized in that: A screw hole matching the push screw is arranged on the mounting disc. A spherical head is arranged at one end of the push screw in contact with the static friction plate, and an operation head for facilitating the rotation of the push screw is arranged at the end of the push screw away from the static friction plate.

6. The resistance adjusting device of an elliptical machine according to claim 5, wherein: The operation head and the push screw are of an integral structure, and the cross-sectional shape of the operation head is polygonal.

7. An elliptical machine resistance adjustment device according to claim 1, characterized in that: A wear-resistant layer is arranged on the side of the static friction plate close to the dynamic friction plate, and patterns for increasing the friction coefficient of the wear-resistant layer are arranged on the wear-resistant layer.

8. The resistance adjusting device of an elliptical machine according to claim 7, characterized in that: The wear-resistant layer is bonded to the static friction plate.

9. The resistance adjusting device of an elliptical machine according to claim 1, characterized in that: Patterns for increasing the friction coefficient of the dynamic friction plate are arranged on the side of the dynamic friction plate close to the static friction plate.

10. The elliptical machine resistance adjustment device according to claim 9, characterized in that: The dynamic friction plate and the flywheel are of an integral structure.

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