A flywheel

Abstract

This utility model provides a flywheel, including an impeller and a flywheel body. The impeller is integrally molded from plastic and includes a mounting ring and blades. The mounting ring is sleeved on the outer periphery of the flywheel body, and a fixing structure is provided between the mounting ring and the flywheel body. Several blades are evenly distributed around the periphery of the mounting ring. The flywheel provided by this utility model, with its impeller made of plastic, has the advantages of low cost, light weight, and easy molding. Furthermore, the use of plastic material allows for the creation of impellers in various colors for consumers to choose from, or makes it easier to provide customized designs.

Description

Technical Field

[0001] This utility model relates to the field of fitness product technology, and in particular to a flywheel. Background Technology

[0002] Flywheels are widely used in fitness equipment, such as exercise bikes. To provide greater resistance, existing exercise bike products not only incorporate magnetic resistance mechanisms but also add fan blades to the outside of the flywheel, further increasing the impeller's resistance through wind resistance. Currently, the fan blades used in the impeller are mostly made of iron, which has the following disadvantages: 1. Limited color options, restricting customization and selection; 2. Heavy weight, significantly increasing the weight of the fitness product. Therefore, this invention provides a flywheel structure that incorporates plastic fan blades, solving the aforementioned technical problems. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes a flywheel structure that can provide consumers with more color choices.

[0004] A flywheel includes an impeller and a flywheel body. The impeller is integrally molded from plastic and includes a mounting ring and blades. The mounting ring is sleeved on the outer periphery of the flywheel body, and a fixing structure is provided between the mounting ring and the flywheel body. Several blades are evenly distributed around the periphery of the mounting ring.

[0005] The flywheel provided by this utility model has an impeller made of plastic, which has the advantages of low cost, light weight and easy molding. In addition, the use of plastic material can form impellers in a variety of colors for consumers to choose from, or it is easier to provide consumers with customized styles.

[0006] Preferably, in order to increase the diameter of the impeller and thus increase wind resistance, the mounting ring is in the shape of an annular plate and is perpendicular to the rotation axis of the flywheel body.

[0007] Preferably, the side of the mounting ring is provided with a mounting ear that fits the outer circumference of the flywheel body. The mounting ear and the outer circumference of the flywheel body are assembled together by screws or clips, which is simple in structure and easy to install.

[0008] Preferably, the mounting ear has a through hole, the outer circumference of the flywheel body has a screw hole, and the impeller is fixedly mounted on the outer circumference of the flywheel body by screws.

[0009] Preferably, the connection between the mounting ring and the blade is rounded to avoid stress concentration and improve the service life of the impeller.

[0010] Preferably, to improve wind resistance, the blades are rectangular with rounded corners on all four sides to avoid sharp corners and reduce the risk of use.

[0011] Preferably, the flywheel body includes a flywheel main body, a magnetic control assembly, and a rotating shaft. To improve the weight uniformity of the flywheel main body, the flywheel main body is a stretched component, formed by stamping steel plate, resulting in a uniform overall texture. This significantly reduces the swaying amplitude during rotation compared to traditional cast iron materials, and also reduces noise. The flywheel main body is rotatably mounted via bearings and a rotating shaft, while the magnetic control assembly and rotating shaft are relatively fixedly mounted and housed within the mounting cavity of the flywheel main body.

[0012] Preferably, an aluminum ring is installed on the peripheral wall of the mounting cavity of the flywheel body to separate the magnetic control component from the peripheral wall of the mounting cavity, preventing the magnetic attracting element of the magnetic control component from directly adhering to the flywheel body. The aluminum ring is a C-shaped ring, which is compressed and then inserted into the mounting cavity. The aluminum ring closes after installation, resulting in a simple installation structure that is unlikely to cause mass deviation of the flywheel body.

[0013] Preferably, the magnetic control assembly includes a mounting base, a swing arm, a magnetic tile, an adjusting component, and a linkage component, wherein,

[0014] The mounting base consists of a bottom cover and a top cover, which are fixed to the rotating shaft by pins and located within the mounting cavity. The swing arm is arc-shaped, with one end rotatably mounted on the mounting base and the other end close to the peripheral wall of the mounting cavity. The magnetic tiles are mounted on the side of the swing arm facing the peripheral wall of the mounting cavity, and at least two sets of swing arms and magnetic tiles are evenly distributed along the peripheral wall of the mounting cavity. The adjusting component is movably mounted on the mounting base and drives one of the swing arms to swing closer to or away from the peripheral wall of the mounting cavity. The linkage component is movably mounted on the mounting base and synchronously drives all the swing arms to swing synchronously, thereby achieving synchronous movement of all magnetic tiles and preventing uneven force distribution and wobbling of the flywheel body.

[0015] Preferably, the adjusting component includes a slider, a pull rope, a spring, and a guide wheel. The slider is slidably mounted on the mounting base. One end of the pull rope is connected to the slider, and the other end passes around the guide wheel and connects to the swing end of the swing arm. The slider pulls and moves the swing arm through the pull rope, allowing the swing arm and the magnetic tile to move away from the peripheral wall of the mounting cavity through the action of the slider and the pull rope. Each swing arm is equipped with a spring. When the spring is compressed, one end presses against the mounting base, and the other end presses against the middle of the swing arm facing the rotating shaft, providing a restoring force to the swing arm near the peripheral wall of the mounting cavity.

[0016] The linkage includes a rotating part and a linkage part. The rotating part is rotatably mounted on the mounting base and coaxial with the rotating shaft. The linkage part is rod-shaped and the number is the same as that of the swing arms. One end of the linkage part is connected to the rotating part, and the other end extends and passes through the through hole at the swing end of the swing arm. One of the swing arms swings through an adjusting component, which in turn drives the linkage part to rotate through the through hole. The linkage part drives the other swing arms to swing synchronously through the linkage part. The structure is simple and the synchronization effect is good. In addition, the mounting base is provided with a fan-shaped limiting groove for the linkage part to swing. On the one hand, it can limit the excessive swing of the linkage part. On the other hand, it can also limit the swing range of the swing arm, avoiding the situation where excessive adjustment or adjustment failure affects the rotation of the flywheel body.

[0017] As can be seen from the above description of this utility model, this utility model has the following beneficial effects:

[0018] The flywheel provided by this utility model has an impeller made of plastic, which has the advantages of low cost, light weight and easy molding. In addition, the use of plastic material can form impellers in a variety of colors for consumers to choose from, or it is easier to provide consumers with customized styles.

[0019] The mounting ring is an annular plate-shaped piece, perpendicular to the rotation axis of the flywheel body. It can increase the diameter of the impeller without significantly increasing the weight, thereby increasing wind resistance.

[0020] The connection between the mounting ring and the blade is rounded to avoid stress concentration and improve the service life of the impeller.

[0021] The magnetic control component adopts a pull-string adjustment method for magnetic resistance. By using the pull-string to change the direction of the force, the structural complexity of the adjustment component can be reduced.

[0022] The linkage adopts a rotating movable mounting structure, which can drive each swing arm to rotate synchronously through a simple structure.

[0023] The fan-shaped limiting groove can limit the excessive swing of the linkage part and limit the swing range of the swing arm. Even when the magnetic control component fails, the flywheel body can still rotate. Attached Figure Description

[0024] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0025] in:

[0026] Figure 1 A flywheel axial side view Figure 1 ;

[0027] Figure 2 A flywheel axial side view Figure 2 ;

[0028] Figure 3 A flywheel axial side view Figure 3 ;

[0029] Figure 4 It is a flywheel explosion Figure 1 ;

[0030] Figure 5 It is a flywheel explosion Figure 2 ;

[0031] Figure 6 This is a front view of a flywheel;

[0032] Figure 7 This is a cross-sectional view of a flywheel; (about Figure 6 (AA section)

[0033] Figures 1 to 7 The components are labeled as follows: impeller 1, mounting ring 11, mounting ear 111, blade 12, flywheel body 2, flywheel main body 21, magnetic control assembly 22, swing arm 221, magnetic tile 222, bottom cover 223, fan-shaped limiting groove 2231, top cover 224, slider 225, pull rope 226, spring 227, guide wheel 228, linkage component 229, rotating shaft 23, aluminum ring 24. Detailed Implementation

[0034] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0035] Please see Figures 1 to 7 A flywheel includes an impeller 1 and a flywheel body 2. The impeller 1 is integrally molded from plastic, such as ABS material in this embodiment. The impeller 1 includes a mounting ring 11 and blades 12. The mounting ring 11 is sleeved on the outer periphery of the flywheel body 2, and a fixed mounting structure is provided between the mounting ring 11 and the flywheel body 2. Several blades 12 are evenly distributed around the periphery of the mounting ring 11.

[0036] In one embodiment, to increase the diameter of the impeller 1 and thus improve wind resistance, the mounting ring 11 is annular and perpendicular to the rotation axis 23 of the flywheel body 2. Preferably, to further improve wind resistance, the blade 12 is rectangular with rounded corners to avoid sharp corners and reduce usage risks. In other embodiments, the connection between the mounting ring 11 and the blade 12 is rounded to avoid stress concentration and improve the service life of the impeller 1.

[0037] Preferably, the mounting ring 11 has a mounting ear 111 on its side that fits the outer circumference of the flywheel body 2. The mounting ear 111 and the outer circumference of the flywheel body 2 are assembled together by screws or clips to form the fixed mounting structure, which is simple and easy to install. For example, in this embodiment, the mounting ear 111 has a through hole, the outer circumference of the flywheel body 2 has a screw hole, and the impeller 1 is fixedly installed on the outer circumference of the flywheel body 2 by screws.

[0038] In one embodiment, the flywheel body 2 includes a flywheel body 21, a magnetic control assembly 22, and a rotating shaft 23. To improve the weight uniformity of the flywheel body 21, the flywheel body 21 is a stretched component, formed by stamping steel plate, resulting in a uniform overall texture. This significantly reduces the swaying amplitude during rotation compared to traditional cast iron materials, and also reduces noise. The flywheel body 21 is rotatably mounted via bearings and the rotating shaft 23. The magnetic control assembly 22 and the rotating shaft 23 are relatively fixedly mounted and disposed within the mounting cavity of the flywheel body 21.

[0039] Based on the above embodiments, an aluminum ring 24 is installed on the peripheral wall of the mounting cavity of the flywheel body 21, which can separate the magnetic control component 22 from the peripheral wall of the mounting cavity, preventing the magnetic attracting parts of the magnetic control component 22 from directly adsorbing onto the flywheel body 21. The aluminum ring 24 is a C-shaped ring, which is compressed and installed into the mounting cavity. After installation, the aluminum ring 24 closes, resulting in a simple installation structure that is less likely to cause mass deviation of the flywheel body 21.

[0040] In one embodiment, the magnetic control component 22 includes a mounting base, a swing arm 221, a magnetic tile 222, an adjusting member, and a linkage member 229.

[0041] The mounting base consists of a bottom cover 223 and a top cover 224, which are fixed to the rotating shaft 23 by pins and located within the mounting cavity. The swing arm 221 is arc-shaped, with one end rotatably mounted on the mounting base and the other end close to the peripheral wall of the mounting cavity. The magnetic tiles 222 are mounted on the side of the swing arm 221 facing the peripheral wall of the mounting cavity, and at least two sets of swing arms 221 and magnetic tiles 222 are evenly distributed along the peripheral wall of the mounting cavity. The adjusting member is movably mounted on the mounting base and drives one of the swing arms 221 to swing closer to or away from the peripheral wall of the mounting cavity. The linkage member 229 is movably mounted on the mounting base and synchronously drives all the swing arms 221 to swing synchronously, thereby achieving synchronous movement of all magnetic tiles 222 and preventing uneven force on the flywheel body 21 and resulting in wobbling.

[0042] Based on the above embodiments, the adjusting component includes a slider 225, a pull rope 226, a spring 227, and a guide wheel 228. The slider 225 is slidably mounted on the mounting base. One end of the pull rope 226 is connected to the slider 225, and the other end passes around the guide wheel 228 and is connected to the swing end of the swing arm 221. The slider 225 pulls and moves the swing arm 221 through the pull rope 226. Through the action of the slider 225 and the pull rope 226, the swing arm 221 and the magnetic tile 222 are moved away from the peripheral wall of the mounting cavity. Each swing arm 221 is provided with a spring 227. When the spring 227 is compressed, one end abuts against the mounting base, and the other end abuts against the middle of the side of the swing arm 221 facing the rotating shaft 23, providing the swing arm 221 with a restoring force close to the peripheral wall of the mounting cavity.

[0043] The linkage 229 includes a rotating part and a linkage part. The rotating part is rotatably mounted on the mounting base and coaxial with the rotating shaft 23. The linkage part is rod-shaped and the number is the same as that of the swing arms 221. One end of the linkage part is connected to the rotating part, and the other end extends and passes through the through hole at the swing end of the swing arm 221. One of the swing arms 221 is driven to swing by an adjusting component, which in turn drives the linkage 229 to rotate through the through hole. The linkage 229 drives the other swing arms 221 to swing synchronously through the linkage part. The structure is simple and the synchronization effect is good. In addition, the mounting base is provided with a fan-shaped limiting groove 2231 for the linkage part to swing. On the one hand, it can limit the excessive swing of the linkage part. On the other hand, it can also limit the swing range of the swing arm 221, so as to avoid the situation where the flywheel body 21 is affected by excessive adjustment or adjustment failure.

[0044] The flywheel provided by this utility model has an impeller 1 made of plastic, which has the advantages of low cost, light weight and easy molding. In addition, the use of plastic material can form impellers 1 in a variety of colors for consumers to choose from, or it is easier to provide consumers with customized styles.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A flywheel, characterized in that, Including the impeller and flywheel body; The impeller is integrally molded from plastic and includes a mounting ring and blades; the mounting ring is sleeved on the outer periphery of the flywheel body, and a fixed mounting structure is provided between the mounting ring and the flywheel body; the blades are of several sizes and are evenly distributed around the periphery of the mounting ring.

2. A flywheel according to claim 1, characterized in that, The mounting ring is in the shape of an annular plate and is perpendicular to the rotation axis of the flywheel body.

3. A flywheel according to claim 2, characterized in that, The mounting ring has mounting ears on its side that fit the outer circumference of the flywheel body. The mounting ears and the outer circumference of the flywheel body are assembled together by screws or clips to form the fixed mounting structure.

4. A flywheel according to claim 3, characterized in that, The mounting lug has a through hole, and the outer circumference of the flywheel body has a screw hole. The impeller is fixedly mounted on the outer circumference of the flywheel body by screws.

5. A flywheel according to claim 1, characterized in that, The connection between the mounting ring and the blade is rounded.

6. A flywheel according to claim 1, characterized in that, The blade is rectangular with rounded corners on all four sides.

7. A flywheel according to claim 1, characterized in that, The flywheel body includes a flywheel main body, a magnetic control component, and a rotating shaft. The flywheel main body is a stretched component, formed by stamping steel plate, and has a mounting cavity. The flywheel main body is rotatably mounted via bearings and a rotating shaft. The magnetic control component and the rotating shaft are relatively fixedly mounted and disposed within the mounting cavity of the flywheel main body.

8. A flywheel according to claim 7, characterized in that, An aluminum ring is installed on the peripheral wall of the mounting cavity of the flywheel body. The aluminum ring is a C-shaped ring and is inserted into the mounting cavity after compression. The aluminum ring closes its opening after installation.

9. A flywheel according to claim 7, characterized in that, The magnetic control assembly includes a mounting base, a swing arm, a magnetic tile, an adjusting component, and a linkage component. The mounting base consists of a bottom cover and a top cover, which are fixed to the rotating shaft by pins and located within the mounting cavity. The swing arm is arc-shaped, with one end rotatably mounted on the mounting base and the other end close to the peripheral wall of the mounting cavity. The magnetic tile is mounted on the side of the swing arm facing the peripheral wall of the mounting cavity, and there are at least two sets of swing arms and magnetic tiles evenly distributed along the peripheral wall of the mounting cavity. The adjusting component is movably mounted on the mounting base and drives one of the swing arms to swing closer to or away from the peripheral wall of the mounting cavity. The linkage component is movably mounted on the mounting base and synchronously drives all the swing arms to swing synchronously.

10. A flywheel according to claim 9, characterized in that, The adjusting component includes a slider, a pull rope, a spring, and a guide wheel. The slider is slidably mounted on the mounting base. One end of the pull rope is connected to the slider, and the other end passes around the guide wheel and is connected to the swing end of the swing arm. The slider holds and pulls the swing arm through the pull rope. Each swing arm is provided with a spring. When the spring is compressed, one end presses against the mounting base, and the other end presses against the middle of the swing arm facing the rotating shaft. The linkage component includes a rotating part and a linkage part. The rotating part is rotatably mounted on the mounting base and is coaxial with the rotating shaft. The linkage part is rod-shaped and the number is the same as that of the swing arms. One end of the linkage part is connected to the rotating part, and the other end extends and passes through the through hole at the swing end of the swing arm. One of the swing arms is driven to swing by an adjusting component, and then drives the linkage component to rotate through the through hole. The linkage component drives the other swing arms to swing synchronously through the linkage part. In addition, the mounting base is provided with a fan-shaped limiting groove for the linkage part to swing.

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