Flywheel assembly

Abstract

The utility model relates to a flywheel assembly, the flywheel assembly at least comprises a flywheel body, a driving wheel and a transmission switching mechanism, a one-way bearing is embedded in an axis opening of the flywheel body, and a driven wheel is fixedly arranged on the side portion of the axis opening; the driving wheel is located on the same side of the driven wheel and is configured to rotate under the action of external force. The transmission switching mechanism comprises a transmission switching wheel, and the transmission switching wheel is arranged on the same side of the driven wheel on the flywheel body and is configured to move under the control of external force so as to be switched between the state that the transmission switching wheel is meshed with the driving wheel and the driven wheel at the same time or the state that the transmission switching wheel is separated from the driving wheel and the driven wheel at the same time; when the driving wheel rotates in the first direction, the flywheel body is driven to rotate in the first direction at least through the one-way bearing. When the flywheel rotates in the second direction, the flywheel body is driven to rotate in the second direction under the condition that the transmission switching wheel is meshed with the driving wheel and the driven wheel at the same time, and the flywheel body freely rotates in the second direction relative to the flywheel body under the condition that the transmission switching wheel is separated from the driving wheel and the driven wheel at the same time.

Description

Technical Field

[0001] The present disclosure relates to the field of fitness equipment, and in particular, to a flywheel assembly. Background Art

[0002] With the improvement of people's living standards, fitness has become an unstoppable trend. Fitness is one of the main ways for humans to enhance their physical fitness.

[0003] Exercise bikes are a common indoor fitness equipment that is becoming more and more popular. As an efficient and convenient aerobic exercise method, they can help people lose fat, shape their bodies, and improve their cardiopulmonary function. Exercise bikes can generate and adjust resistance through a magnetically controlled wheel system to achieve the effect of exercise.

[0004] The magnetic control systems of exercise bikes on the market are mainly divided into those that can only rotate in one direction and those that can rotate in two directions. The two-way rotating magnetic control system means that the user can drive the magnetic control wheel to rotate in both clockwise and counterclockwise directions; the one-way magnetic control system means that the magnetic control wheel can only be driven to rotate in the forward pedaling direction, and the user cannot drive the magnetic control wheel to rotate counterclockwise when pedaling in the reverse direction.

[0005] Existing fitness bikes on the market cannot combine unidirectional magnetic control systems with bidirectional magnetic control systems, and cannot realize free switching of unidirectional and bidirectional magnetic control systems on a fitness bike. Users lose a lot of experience and feelings during riding, and the function and practicality of a fitness bike are not fully utilized. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the present disclosure provides a flywheel assembly.

[0007] According to a first aspect of the present disclosure, there is provided a flywheel assembly, comprising:

[0008] A flywheel body, wherein a one-way bearing is embedded in the axial opening of the flywheel body, and a driven wheel is fixedly arranged on the side of the axial opening;

[0009] A driving wheel, the driving wheel is located on the same side as the driven wheel and is configured to rotate under the action of an external force;

[0010] A transmission switching mechanism, the transmission switching mechanism comprising a transmission switching wheel, the transmission switching wheel being arranged on the same side of the driven wheel on the flywheel body and being configured to be controlled to move under external force so as to switch between a state of being simultaneously engaged with the driving wheel and the driven wheel, or being simultaneously separated from the driving wheel and the driven wheel;

[0011] Wherein, the driving wheel is constructed to drive the flywheel body to rotate in the first direction at least through the one-way bearing when rotating in the first direction; when rotating in the second direction, when the transmission switching wheel is engaged with the driving wheel and the driven wheel at the same time, the flywheel body is driven to rotate in the second direction through the transmission switching wheel, and when the transmission switching wheel is separated from the driving wheel and the driven wheel at the same time, it rotates freely in the second direction relative to the flywheel body.

[0012] In one embodiment of the present disclosure, the transmission switching wheel is configured to be controlled by an external force to move in a direction perpendicular to the axial direction of the flywheel body so as to switch between a state of simultaneously engaging with the driving wheel and the driven wheel, or simultaneously separating from the driving wheel and the driven wheel.

[0013] In one embodiment of the present disclosure, the transmission switching mechanism also includes a limiting bracket and a transmission member, the transmission switching wheel is rotatably arranged on the transmission member, a receiving groove is arranged on the limiting bracket, and the transmission member is constructed to move in the receiving groove under the action of external force.

[0014] In one embodiment of the present disclosure, a compression spring is arranged in the accommodating groove, and the compression spring is constructed to drive the transmission switching wheel to engage with the driving wheel and the driven wheel at the same time under the action of its own elastic force, and to be compressed under the action of external force to separate the transmission switching wheel from the driving wheel and the driven wheel at the same time.

[0015] In one embodiment of the present disclosure, the transmission switching wheel is rotatably disposed on the first end of the transmission member, and the second end of the transmission member is configured to penetrate the accommodating groove and be connected to the pulling mechanism.

[0016] In one embodiment of the present disclosure, a limiting member is provided at the first end of the transmission member, the transmission switching wheel is rotatably provided at the first end of the limiting member, and the second end penetrates the transmission member and forms a limiting portion;

[0017] The limiting bracket is provided with a limiting groove corresponding to the position of the limiting part, and the limiting part is constructed to move in the limiting groove so that the transmission switching wheel can be switched between a state of simultaneously engaging with the driving wheel and the driven wheel, or simultaneously separating from the driving wheel and the driven wheel.

[0018] In one embodiment of the present disclosure, it also includes a transmission sleeve, which is arranged through the driving wheel, the driven wheel and the one-way bearing, and is fixedly connected to the driving wheel and the inner ring of the one-way bearing; the outer ring of the one-way bearing is fixedly arranged at the axial opening of the flywheel body.

[0019] In one embodiment of the present disclosure, an auxiliary support bearing is further provided between the transmission sleeve and the flywheel body, at least one auxiliary support bearing is provided, and the auxiliary support bearing is arranged in parallel with the one-way bearing.

[0020] In one embodiment of the present disclosure, a fixing mechanism is further included, and the fixing mechanism includes a fixing bracket and a fixing shaft, and both ends of the fixing shaft are fixedly arranged on the fixing bracket and pass through the axial opening of the flywheel body.

[0021] In one embodiment of the present disclosure, a first support bearing is arranged between the driving wheel and the fixed shaft, and a second support bearing is arranged between the flywheel body and the fixed shaft, and the first support bearing and the second support bearing are constructed to jointly support the driving wheel and the transmission shaft so that a gap is formed between the transmission sleeve and the fixed shaft.

[0022] During the use of the flywheel assembly disclosed in the present invention, when the user uses the one-way flywheel mode, it is only necessary to control the transmission switching wheel to separate from the driving wheel and the driven wheel at the same time. In this way, when the user pedals the fitness bike in the first direction and the driving wheel rotates in the first direction, the flywheel body can be driven to rotate in the first direction through the one-way bearing to achieve the purpose of exercise. When the user stops during the pedaling process, the inertia generated by the rotation of the flywheel body will not be transmitted to the driving wheel, and the pedal will not be driven to continue to move, which is convenient for the user to take a short rest.

[0023] When the user uses the two-way flywheel mode, the transmission switching wheel can be controlled to engage with the active wheel and the driven wheel at the same time. In this way, no matter the user pedals the bicycle in the first direction or the exercise bike in the second direction, the flywheel body can be driven to rotate, which not only can achieve the purpose of exercise, but also makes it convenient for the user to do cycling exercises on the exercise bike, which not only facilitates the user to have more exercise movements, but also increases the user's exercise methods, thereby improving the user's exercise experience.

[0024] It can be seen that the flywheel assembly of the present invention can realize the switching between the unidirectional flywheel mode and the bidirectional flywheel mode, thereby enabling an exercise bike to realize two exercise modes at the same time. It is not only convenient for users to use, but also because the mode switching can be achieved by only using a movable transmission switching wheel, the overall structure is simple, thereby effectively reducing the processing cost.

[0025] Moreover, it is understandable that for the existing exercise bikes that only have a two-way flywheel mode, when the user stops pedaling immediately, the inertia generated by the rotation of the flywheel body will be transmitted to the driving wheel, thereby driving the user's feet to continue moving, which puts the user at risk of injury. Therefore, when the user stops exercising, the user needs to use the brake function to ensure riding safety.

[0026] However, since the flywheel assembly of the present invention can switch between a unidirectional flywheel mode and a bidirectional flywheel mode, when the user uses the bidirectional flywheel mode and suddenly encounters an emergency and needs to stop pedaling immediately, the user can also switch to the unidirectional flywheel mode and stop pedaling. In this way, the inertia generated by the rotation of the flywheel body is prevented from being transmitted to the driving wheel, and the pedals will not be driven to continue moving, thereby avoiding user injuries and improving the safety of the exercise bike.

[0027] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0029] Figure 1 is a three-dimensional diagram of a fitness bike provided by an embodiment of the present disclosure;

[0030] Figure 2 is a cross-sectional view of an exercise bike provided by an embodiment of the present disclosure;

[0031] Figure 3 is another cross-sectional view of the fitness bike provided by the embodiment of the present disclosure;

[0032] Figure 4 is a stereoscopic diagram of a flywheel assembly provided by an embodiment of the present disclosure;

[0033] Figure 5 is another stereoscopic view of a flywheel assembly provided by an embodiment of the present disclosure;

[0034] Figure 6 is an exploded view of a flywheel assembly provided by an embodiment of the present disclosure;

[0035] Figure 7 is a partial exploded view of a flywheel assembly provided by an embodiment of the present disclosure;

[0036] Figure 8 is a side view of a flywheel assembly in a unidirectional flywheel mode provided by an embodiment of the present disclosure;

[0037] Fig. 9 is a side view of a flywheel assembly of a bidirectional flywheel mode provided by an embodiment of the present disclosure;

[0038] Fig.10 is a partial exploded view of a flywheel assembly provided by an embodiment of the present disclosure;

[0039] Fig.11 It is a partial exploded view of a flywheel assembly provided in an embodiment of the present disclosure.

[0040] Figures 1 to 11 The corresponding relationship between the names of the components and the reference numerals is as follows:

[0041] 10. Flywheel assembly; 11. Flywheel body; 111. Driven wheel; 12. Driving wheel; 13. Transmission switching mechanism; 131. Transmission switching wheel; 132. Limit bracket; 1321. Limit groove; 133. Transmission member; 134. Compression spring; 135. Limit member; 1351. Limit part; 136. Adjusting pull wire; 137. Pull wire tube; 138. Pull wire motor; 14. Transmission bushing; 151. One-way bearing; 152. Auxiliary support bearing; 161. Fixed bracket; 162. Fixed shaft; 171. First support bearing; 172. Second support bearing; 181. Generator wheel; 182. Generator belt; 20. Reluctance assembly; 31. Belt pulley; 32. Driving belt; 40. Handlebar. DETAILED DESCRIPTION

[0042] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless otherwise specifically stated.

[0043] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0044] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0045] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0046] The specific embodiments of the present disclosure are described below in conjunction with the accompanying drawings.

[0047] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0048] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.

[0049] In this document, “equal”, “same”, etc. are not strictly limited in mathematical and / or geometric senses, but also include errors that can be understood by those skilled in the art and allowed by manufacturing or use.

[0050] The present disclosure provides a flywheel assembly, which can be applied to fitness bikes such as spinning bikes, and includes a flywheel body, a driving wheel, and a transmission switching mechanism; a one-way bearing is embedded in the axial opening of the flywheel body, and a driven wheel is fixedly arranged on the side of the axial opening; the driving wheel is located on the same side of the driven wheel, and is configured to rotate under the action of an external force; the transmission switching mechanism includes a transmission switching wheel, which is arranged on the same side of the driven wheel on the flywheel body, and is configured to be controlled to move under an external force, so as to switch between a state of being simultaneously engaged with the driving wheel and the driven wheel, or being simultaneously separated from the driving wheel and the driven wheel;

[0051] Among them, the driving wheel is constructed to drive the flywheel body to rotate in the first direction at least through the one-way bearing when rotating in the first direction; when rotating in the second direction, when the transmission switching wheel is engaged with the driving wheel and the driven wheel at the same time, the flywheel body is driven to rotate in the second direction through the transmission switching wheel, and when the transmission switching wheel is separated from the driving wheel and the driven wheel at the same time, it rotates freely in the second direction relative to the flywheel body.

[0052] It is understandable that when the flywheel assembly of the present disclosure is applied to a fitness bike such as a spinning bike, the fitness bike is also provided with devices such as pedals, and the user drives the driving wheel to rotate by stepping on the pedals.

[0053] Thus, during the use of the flywheel assembly disclosed in the present invention, when the user uses the one-way flywheel mode, the user only needs to control the transmission switching wheel to separate from the driving wheel and the driven wheel at the same time. Thus, when the user pedals the fitness bike in the first direction and the driving wheel rotates in the first direction, the flywheel body can be driven to rotate in the first direction through the one-way bearing to achieve the purpose of exercise. When the user stops during the pedaling process, the inertia generated by the rotation of the flywheel body will not be transmitted to the driving wheel, and the pedal will not be driven to continue to move, which is convenient for the user to take a short rest.

[0054] When the user uses the two-way flywheel mode, the transmission switching wheel can be controlled to engage with the active wheel and the driven wheel at the same time. In this way, no matter the user pedals the bicycle in the first direction or the exercise bike in the second direction, the flywheel body can be driven to rotate, which not only can achieve the purpose of exercise, but also makes it convenient for the user to do cycling exercises on the exercise bike, which not only facilitates the user to have more exercise movements, but also increases the user's exercise methods, thereby improving the user's exercise experience.

[0055] It can be seen that the flywheel assembly of the present invention can realize the switching between the unidirectional flywheel mode and the bidirectional flywheel mode, thereby enabling an exercise bike to realize two exercise modes at the same time. It is not only convenient for users to use, but also because the mode switching can be achieved by only using a movable transmission switching wheel, the overall structure is simple, thereby effectively reducing the processing cost.

[0056] Moreover, it is understandable that for the existing exercise bikes that only have a two-way flywheel mode, when the user stops pedaling immediately, the inertia generated by the rotation of the flywheel body will be transmitted to the driving wheel, thereby driving the user's feet to continue moving, which puts the user at risk of injury. Therefore, when the user stops exercising, the user needs to use the brake function to ensure riding safety.

[0057] However, since the flywheel assembly of the present invention can switch between a unidirectional flywheel mode and a bidirectional flywheel mode, when the user uses the bidirectional flywheel mode and suddenly encounters an emergency and needs to stop pedaling immediately, the user can also switch to the unidirectional flywheel mode and stop pedaling. In this way, the inertia generated by the rotation of the flywheel body is prevented from being transmitted to the driving wheel, and the pedals will not be driven to continue moving, thereby avoiding user injuries and improving the safety of the exercise bike.

[0058] For ease of understanding, refer to Figures 1 to 11 , the specific structure and working principle of the flywheel assembly of the present disclosure are described in detail in combination with an embodiment. It should be noted that the present disclosure also provides a fitness bike. In order to keep the text concise, this article introduces the fitness bike together with the description of the flywheel assembly.

[0059] like Figures 1 to 7 As shown, the present disclosure provides a flywheel assembly 10, which can be applied to an exercise bike or other forms of exercise bikes, without limitation herein.

[0060] It is understandable that if Figures 1 to 3 As shown, the fitness bike of the present invention further includes structures such as a handlebar 40, a seat, a belt pulley 31, and pedals, wherein the pedals are connected to the belt pulley 31, and a driving belt 32 is sleeved between the belt pulley 31 and the driving wheel 12 of the flywheel assembly 10. When a user uses the fitness bike, the user sits on the seat, holds the handlebar 40, and steps on the pedals with both feet to rotate the belt pulley 31, thereby driving the driving wheel 12 to rotate through the driving belt 32.

[0061] It is understandable that due to the large size difference between the main belt pulley 31 and the driving wheel 12, when the user pedals one circle, the driving wheel 12 can drive the flywheel body 11 to rotate multiple circles, thereby providing the user with appropriate rotation resistance and meeting the user's exercise needs.

[0062] exist Figure 1 In the embodiment shown in , the user indirectly drives the driving wheel 12 to rotate through the belt pulley 31 and the driving belt 32. In another embodiment of the present disclosure, the foot pedal can also be directly set on the driving wheel 12 to directly drive the driving wheel 12 to rotate. Other structures can also be used to drive the driving wheel 12 to rotate, which is not limited here.

[0063] like Figures 4 to 7 As shown, the flywheel assembly 10 includes a flywheel body 11, a driving wheel 12 and a transmission switching mechanism 13; a one-way bearing 151 is embedded in the axial opening of the flywheel body 11, and a driven wheel 111 is fixedly arranged on the side of the axial opening; the driving wheel 12 is located on the same side of the driven wheel 111, and is constructed to rotate under the action of an external force; the transmission switching mechanism 13 includes a transmission switching wheel 131, which is arranged on the same side of the driven wheel 111 on the flywheel body 11, and is configured to be controlled to move by an external force, so as to switch between the state of being engaged with the driving wheel 12 and the driven wheel 111 at the same time, or being separated from the driving wheel 12 and the driven wheel 111 at the same time.

[0064] It is understandable that the flywheel body 11 can be made of a metal material, and the fitness bike of the present disclosure can be provided with a magnetic resistance component 20, which can generate a magnetic field at the flywheel body 11. In this way, during the rotation of the flywheel body 11, the magnetic field generated by the magnetic resistance component 20 will be cut, thereby forming a resistance that hinders the rotation of the flywheel body 11, thereby satisfying the user's exercise purpose. Moreover, by controlling the strength of the magnetic field generated by the magnetic resistance component 20, the size of the resistance that hinders the rotation of the flywheel body 11 can be adjusted, thereby further satisfying the user's various exercise needs.

[0065] Among them, Figure 8 and Fig. 9 As shown, in one embodiment of the present disclosure, the driving wheel 12 and the driven wheel 111 have the same size, so that the transmission switching wheel 131 can be a single gear structure, which can achieve the purpose of the transmission switching wheel 131 meshing with the driving wheel 12 and the driven wheel 111 at the same time. In another embodiment of the present disclosure, when the driving wheel 12 and the driven wheel 111 have different sizes, the transmission switching wheel 131 can be composed of two coaxially fixed gears with different sizes. By adjusting the sizes of the two gears, the purpose of the transmission switching wheel 131 meshing with the driving wheel 12 and the driven wheel 111 at the same time can also be achieved.

[0066] Among them, the driving wheel 12 is constructed to drive the flywheel body 11 to rotate in the first direction at least through the one-way bearing 151 when rotating in the first direction; when rotating in the second direction, when the transmission switching wheel 131 is engaged with the driving wheel 12 and the driven wheel 111 at the same time, the flywheel body 11 is driven to rotate in the second direction through the transmission switching wheel 131, and when the transmission switching wheel 131 is separated from the driving wheel 12 and the driven wheel 111 at the same time, it rotates freely in the second direction relative to the flywheel body 11.

[0067] In this way, Figure 8As shown, during the use of the flywheel assembly 10 of the present disclosure, when the user uses the one-way flywheel mode, it is only necessary to control the transmission switching wheel 131 to separate from the driving wheel 12 and the driven wheel 111 at the same time. In this way, when the user pedals the fitness bike in the first direction and the driving wheel 12 rotates in the first direction, the flywheel body 11 can be driven to rotate in the first direction through the one-way bearing 151, thereby achieving the purpose of exercise. When the user stops during the pedaling process, the inertia generated by the rotation of the flywheel body 11 will not be transmitted to the driving wheel 12, and the pedal will not be driven to continue to move, which is convenient for the user to take a short rest.

[0068] And as Fig. 9 As shown, when the user uses the two-way flywheel mode, the transmission switching wheel 131 can be controlled to engage with the driving wheel 12 and the driven wheel 111 at the same time. In this way, no matter the user pedals the bicycle in the first direction or the fitness bike in the second direction, the flywheel body 11 can be driven to rotate, which can not only achieve the purpose of exercise, but also make it convenient for the user to do cycling exercises on the fitness bike, which not only facilitates the user to have more exercise movements, but also increases the user's exercise methods, thereby improving the user's exercise experience.

[0069] It can be seen that the flywheel assembly 10 of the present invention can realize the switching between the unidirectional flywheel mode and the bidirectional flywheel mode, thereby enabling a fitness bike to realize two sports modes at the same time. It is not only convenient for users to use, but also because the mode switching can be achieved only by a movable transmission switching wheel 131, the overall structure is simple, thereby effectively reducing the processing cost.

[0070] Moreover, it is understandable that for the existing fitness bikes with only a two-way flywheel mode, when the user stops pedaling immediately, the inertia generated by the rotation of the flywheel body 11 will be transmitted to the driving wheel 12, thereby driving the user's feet to continue moving, which puts the user at risk of injury. Therefore, when the user stops exercising, the brake function needs to be used to ensure riding safety.

[0071] However, since the flywheel assembly 10 of the present invention can switch between the unidirectional flywheel mode and the bidirectional flywheel mode, when the user uses the bidirectional flywheel mode and suddenly encounters an emergency and needs to stop pedaling immediately, the user can also switch to the unidirectional flywheel mode and stop pedaling. In this way, the inertia generated by the rotation of the flywheel body 11 is prevented from being transmitted to the driving wheel 12, and the pedals will not be driven to continue moving, thereby avoiding user injuries and improving the safety of the exercise bike.

[0072] The moving direction of the transmission switching wheel 131 can be set as required, such as Figure 8 and Fig. 9As shown, in one embodiment of the present disclosure, the transmission switching wheel 131 is configured to be controlled by an external force to move in a direction perpendicular to the axial direction of the flywheel body 11, so as to switch between the states of being simultaneously engaged with the driving wheel 12 and the driven wheel 111, or being simultaneously separated from the driving wheel 12 and the driven wheel 111. It can be understood that for fitness bike equipment, the extension length in the direction of the axial direction of the flywheel body 11 is generally short, and the extension length in the horizontal direction and the height direction perpendicular to the axial direction of the flywheel body 11 is long. Since the transmission switching wheel 131 can be controlled by an external force to move in a direction perpendicular to the axial direction of the flywheel body 11, the transmission switching mechanism 13 of the present disclosure can be arranged in a direction perpendicular to the axial direction of the flywheel body 11. Compared with being arranged in the axial direction of the flywheel body 11, the extension length of the flywheel assembly 10 of the present disclosure in the axial direction can be greatly reduced, thereby effectively reducing the space occupied by the fitness bike of the present disclosure in the axial direction of the flywheel assembly 10, which not only makes the fitness bike of the present disclosure more compact and beautiful, but also facilitates users to store the fitness bike of the present disclosure.

[0073] Further, such as Figure 8 and Fig. 9 As shown, in one embodiment of the present disclosure, the transmission switching wheel 131 is configured to be controlled by external force to move radially along the flywheel body 11 to switch between simultaneously engaging with the driving wheel 12 and the driven wheel 111, or simultaneously separating from the driving wheel 12 and the driven wheel 111.

[0074] In this way, compared with other directions perpendicular to the axial direction of the flywheel body 11, when the transmission switching wheel 131 is controlled by external force to move radially along the flywheel body 11, the required moving distance for switching between the states of simultaneously engaging with the driving wheel 12 and the driven wheel 111, or simultaneously separating from the driving wheel 12 and the driven wheel 111 is the shortest, making the transmission switching wheel 131 disclosed in the present invention more sensitive, and it can also effectively reduce the required size of the transmission switching wheel 131, thereby reducing the required processing material of the transmission switching wheel 131.

[0075] Specifically, Figure 6 As shown in the figure, in one embodiment of the present disclosure, the transmission switching mechanism 13 also includes a limiting bracket 132 and a transmission member 133, the transmission switching wheel 131 is rotatably set on the transmission member 133, the limiting bracket 132 is provided with a receiving groove, and the transmission member 133 is constructed to move in the receiving groove under the action of external force.

[0076] Since the transmission switching wheel 131 is rotatably arranged on the transmission member 133, the normal rotation of the transmission switching wheel 131 will not be affected, that is, when the flywheel assembly 10 of the present disclosure is in the bidirectional flywheel mode, when the transmission member 133 pushes the transmission switching wheel 131 to engage with the driving wheel 12 and the driven wheel 111 at the same time, the transmission member 133 as a whole remains stationary, and the transmission switching wheel 131 continues to rotate on the transmission member 133. Since the limiting bracket 132 is provided with a receiving groove, the transmission member 133 can move in the receiving groove, thereby driving the transmission switching wheel 131 to switch between the state of engaging with the driving wheel 12 and the driven wheel 111 at the same time, or separating from the driving wheel 12 and the driven wheel 111 at the same time.

[0077] Further, such as Figure 3 and Fig.10 As shown, in one embodiment of the present disclosure, a compression spring 134 is arranged in the accommodating groove, and the compression spring 134 is constructed to drive the transmission switching wheel 131 to engage with the driving wheel 12 and the driven wheel 111 at the same time under the action of its own elastic force, and to be compressed under the action of external force to separate the transmission switching wheel 131 from the driving wheel 12 and the driven wheel 111 at the same time.

[0078] By setting the compression spring 134, the compression spring 134 can be used to push the transmission member 133 to move, thereby driving the transmission switching wheel 131 to engage with the driving wheel 12 and the driven wheel 111 at the same time. When the transmission switching wheel 131 needs to be separated from the driving wheel 12 and the driven wheel 111 at the same time, it is only necessary to use external force to pull the transmission member 133 and compress the compression spring 134, so that the transmission switching wheel 131 can be separated from the driving wheel 12 and the driven wheel 111 at the same time.

[0079] In order to facilitate the external force to pull the transmission member 133, such as Figure 3 As shown, in one embodiment of the present disclosure, the transmission switching wheel 131 is rotatably disposed at the first end of the transmission member 133, and the second end of the transmission member 133 is configured to penetrate the receiving slot and be connected to the pulling mechanism. Figure 3 As shown, the size of the end of the transmission member 133 installed with the compression spring 134 is smaller than the size of the end without the compression spring 134 installed. In this way, it is convenient for the compression spring 134 to be mounted on the transmission member 133, so that the compression spring 134 can abut against the transmission member 133, thereby pushing the transmission member 133, and it will not prevent the second end of the transmission member 133 from passing through the bottom of the accommodating groove and connecting with the pulling mechanism.

[0080] In another embodiment of the present disclosure, a hole may be opened on the side wall of the receiving groove, and part of the structure of the transmission member 133 protrudes from the hole on the side wall of the receiving groove, and the pulling mechanism is connected to the part of the transmission member 133 located outside the limiting bracket 132, so that the purpose of using external force to pull the transmission member 133 can also be achieved. In other embodiments of the present disclosure, other structures can also be used, which are not limited here.

[0081] like Figure 5 and Fig.11 As shown, in one embodiment of the present disclosure, the pulling mechanism may include an adjusting wire 136, the adjusting wire 136 is disposed in a wire tube 137, one end of the adjusting wire 136 is fixedly connected to the transmission member 133, and the other end is fixedly connected to the pulling device. The pulling device may be an electric pulling device such as a wire motor 138. Specifically, the wire motor 138 may rotate in two directions, thereby driving the movable gear to move in two directions close to and away from the fixed gear by winding or releasing the adjusting wire 136; or, the wire motor 138 may be a telescopic motor, thereby directly driving the movable gear to move in two directions close to and away from the fixed gear by pulling the adjusting wire 136.

[0082] In another embodiment of the present disclosure, the pulling device can also be a manual pulling device such as a pulling knob or a pulling lever, as long as the pulling device can pull the adjustment wire 136 and hold the adjustment wire 136 so that the transmission switching wheel 131 can maintain the set position, and then maintain the state where the transmission switching wheel 131 is separated from the driving wheel 12 and the driven wheel 111 at the same time.

[0083] In order to facilitate the transmission switching wheel 131 to rotate relative to the transmission member 133, and to facilitate the transmission switching wheel 131 to maintain a set position, such as Figure 3 and Fig.10 As shown, in one embodiment of the present disclosure, a limiting member 135 is provided at the first end of the transmission member 133, and a transmission switching wheel 131 is rotatably provided at the first end of the limiting member 135, and the second end passes through the transmission member 133 and forms a limiting portion 1351; a limiting groove 1321 corresponding to the position of the limiting portion 1351 is provided on the limiting bracket 132, and the limiting portion 1351 is constructed to move in the limiting groove 1321 so that the transmission switching wheel 131 can switch between the state of being simultaneously engaged with the driving wheel 12 and the driven wheel 111, or being simultaneously separated from the driving wheel 12 and the driven wheel 111.

[0084] By arranging the limiting member 135 between the transmission switching wheel 131 and the transmission member 133, the transmission switching wheel 131 can be rotatably arranged on the transmission member 133 when the extension direction of the transmission member 133 is parallel to the plane where the transmission switching wheel 131 is located. In addition, since the limiting bracket 132 is provided with a limiting groove 1321 corresponding to the position of the limiting portion 1351, the limiting portion 1351 can move in the limiting groove 1321, and the limiting member 135 penetrates the transmission member 133, the moving direction of the transmission member 133 can be effectively limited, and the transmission member 133 can be further ensured to always move along the accommodating groove.

[0085] like Figure 2 and Figure 3 As shown, a driven wheel 111 is arranged between the one-way bearing 151 and the driving wheel 12, so that the driving wheel 12 can drive the inner ring of the one-way bearing 151 to rotate, thereby driving the flywheel body 11 to rotate along the first direction, as shown in FIG. Figure 2 and Figure 6 As shown, in one embodiment of the present disclosure, the flywheel assembly 10 of the present disclosure further includes a transmission sleeve 14, which is disposed through the driving wheel 12, the driven wheel 111 and the one-way bearing 151, and is fixedly connected to the driving wheel 12 and the inner ring of the one-way bearing 151; the outer ring of the one-way bearing 151 is fixedly disposed at the axial opening of the flywheel body 11. By arranging the transmission sleeve 14 between the driving wheel 12 and the inner ring of the one-way bearing 151, it can be ensured that the driving wheel 12 can drive the inner ring of the one-way bearing 151 to rotate, thereby driving the flywheel body 11 to rotate in the first direction, and will not affect the arrangement of the driven wheel 111.

[0086] Further, such as Figure 2 and Figure 7 As shown, in one embodiment of the present disclosure, an auxiliary support bearing 152 is further provided between the transmission sleeve 14 and the flywheel body 11, at least one auxiliary support bearing 152 is provided, and the auxiliary support bearing 152 is arranged in parallel with the one-way bearing 151. By providing the auxiliary support bearing 152 between the transmission sleeve 14 and the flywheel body 11, the auxiliary support bearing 152 can bear the weight of the flywheel body 11 and the driven wheel 111 together with the one-way bearing 151. In fact, the weight of the flywheel body 11 is mainly borne by the auxiliary support bearing 152, and the one-way bearing 151 mainly bears the function of driving the flywheel body 11 to rotate along the first direction.

[0087] Moreover, if Figure 2 and Figure 7As shown, in one embodiment of the present disclosure, two auxiliary support bearings 152 can be provided, and the two auxiliary support bearings 152 are respectively arranged on both sides of the one-way bearing 151, and are arranged parallel to the one-way bearing 151. In this way, the two auxiliary support bearings 152 can jointly bear the weight of the flywheel body 11 and the driven wheel 111, thereby improving the service life of the flywheel assembly 10 of the present disclosure.

[0088] It is understandable that since the fitness bike of the present invention remains stationary as a whole during use, Figure 2 and Figure 3 As shown, in one embodiment of the present disclosure, the flywheel assembly 10 of the present disclosure further includes a fixing mechanism, which includes a fixing bracket 161 and a fixing shaft 162. Both ends of the fixing shaft 162 are fixedly arranged on the fixing bracket 161 and pass through the axial opening of the flywheel body 11. In this way, the fixing bracket 161 and the fixing shaft 162 can be used to keep the flywheel body 11 in a suspended state.

[0089] Further, in one embodiment of the present disclosure, a first support bearing 171 is provided between the driving wheel 12 and the fixed shaft 162, and a second support bearing 172 is provided between the flywheel body 11 and the fixed shaft 162. The first support bearing 171 and the second support bearing 172 are configured to jointly support the driving wheel 12 and the transmission shaft so that a gap is formed between the transmission sleeve 14 and the fixed shaft 162. By providing the first support bearing 171 and the second support bearing 172, a gap can be formed between the transmission sleeve 14 and the fixed shaft 162. In this way, during the rotation of the transmission sleeve 14 relative to the fixed shaft 162, no contact is generated between the two, thereby avoiding friction between the two, which can reduce the rotation resistance of the transmission sleeve 14 and avoid wear between the transmission sleeve 14 and the fixed shaft 162, thereby effectively extending the service life of the flywheel assembly 10 of the present disclosure.

[0090] Among them, Figure 2 As shown, in one embodiment of the present disclosure, a generator wheel 181 can also be provided on the other side of the driven wheel 111 on the flywheel body 11, and a generator belt 182 is provided on the generator wheel 181, and is transmission-connected with the generator mechanism. In this way, the flywheel assembly 10 of the present disclosure can also generate electricity through the generator belt 182 during the rotation of the driving wheel 12, so that the fitness bike of the present disclosure can work without external power plugging, making the fitness bike of the present disclosure more convenient to use.

[0091] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A flywheel assembly, characterized in that: include: A flywheel body (11), wherein a one-way bearing (151) is embedded in an axial opening of the flywheel body (11), and a driven wheel (111) is fixedly arranged on a side of the axial opening; A driving wheel (12), the driving wheel (12) being located on the same side as the driven wheel (111) and being configured to rotate under the action of an external force; A transmission switching mechanism (13), the transmission switching mechanism (13) comprising a transmission switching wheel (131), the transmission switching wheel (131) being arranged on the same side of the driven wheel (111) on the flywheel body (11), and being configured to be controlled to move under external force so as to switch between a state of simultaneously meshing with the driving wheel (12) and the driven wheel (111), or simultaneously separating from the driving wheel (12) and the driven wheel (111); The driving wheel (12) is constructed such that when the driving wheel (12) rotates in a first direction, the flywheel body (11) is driven to rotate in the first direction at least through the one-way bearing (151); when the driving wheel (12) rotates in a second direction, the flywheel body (11) is driven to rotate in the second direction through the transmission switching wheel (131) when the transmission switching wheel (131) is simultaneously engaged with the driving wheel (12) and the driven wheel (111); and when the transmission switching wheel (131) is simultaneously separated from the driving wheel (12) and the driven wheel (111), the flywheel body (11) is freely rotated in the second direction relative to the flywheel body (11).

2. The flywheel assembly according to claim 1, characterized in that: The transmission switching wheel (131) is configured to be controlled by an external force to move in a direction perpendicular to the axial direction of the flywheel body (11) so as to switch between a state of simultaneously engaging with the driving wheel (12) and the driven wheel (111) or a state of simultaneously separating from the driving wheel (12) and the driven wheel (111).

3. The flywheel assembly according to claim 2, characterized in that: The transmission switching mechanism (13) further comprises a limiting bracket (132) and a transmission member (133); the transmission switching wheel (131) is rotatably arranged on the transmission member (133); a receiving groove is arranged on the limiting bracket (132); and the transmission member (133) is configured to move in the receiving groove under the action of an external force.

4. The flywheel assembly according to claim 3, characterized in that: A compression spring (134) is arranged in the receiving groove, and the compression spring (134) is configured to drive the transmission switching wheel (131) to mesh with the driving wheel (12) and the driven wheel (111) simultaneously under the action of its own elastic force, and to be compressed under the action of an external force to separate the transmission switching wheel (131) from the driving wheel (12) and the driven wheel (111) simultaneously.

5. The flywheel assembly according to claim 4, characterized in that: The transmission switching wheel (131) is rotatably arranged on the first end of the transmission member (133), and the second end of the transmission member (133) is configured to penetrate the accommodating groove and be connected to the pulling mechanism.

6. The flywheel assembly according to claim 5, characterized in that: A limiting member (135) is disposed at the first end of the transmission member (133); the transmission switching wheel (131) is rotatably disposed at the first end of the limiting member (135); and the second end penetrates the transmission member (133) to form a limiting portion (1351); The limiting bracket (132) is provided with a limiting groove (1321) corresponding to the position of the limiting portion (1351), and the limiting portion (1351) is configured to move in the limiting groove (1321) so that the transmission switching wheel (131) is switched between a state of simultaneously engaging with the driving wheel (12) and the driven wheel (111), or simultaneously separating from the driving wheel (12) and the driven wheel (111).

7. The flywheel assembly according to any one of claims 1 to 6, characterized in that: The flywheel body (11) further comprises a transmission shaft sleeve (14), wherein the transmission shaft sleeve (14) is arranged through the driving wheel (12), the driven wheel (111) and the one-way bearing (151), and is fixedly connected to the driving wheel (12) and the inner ring of the one-way bearing (151); the outer ring of the one-way bearing (151) is fixedly arranged at the axial opening of the flywheel body (11).

8. The flywheel assembly according to claim 7, characterized in that An auxiliary support bearing (152) is also provided between the transmission shaft sleeve (14) and the flywheel body (11), at least one auxiliary support bearing (152) is provided, and the auxiliary support bearing (152) is arranged in parallel with the one-way bearing (151).

9. The flywheel assembly according to claim 7, characterized in that: It also includes a fixing mechanism, which includes a fixing bracket (161) and a fixing shaft (162). Both ends of the fixing shaft (162) are fixedly arranged on the fixing bracket (161) and pass through the axial opening of the flywheel body (11).

10. The flywheel assembly according to claim 9, characterized in that A first support bearing (171) is arranged between the driving wheel (12) and the fixed shaft (162), and a second support bearing (172) is arranged between the flywheel body (11) and the fixed shaft (162). The first support bearing (171) and the second support bearing (172) are constructed to jointly support the driving wheel (12) and the transmission shaft so that a gap is formed between the transmission sleeve (14) and the fixed shaft (162).

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