Exercise bicycle

Abstract

The utility model relates to an exercise bicycle which comprises a flywheel body, a driving wheel, a transmission switching mechanism and a switching control assembly. The driving wheel is configured to rotate under the action of external force; the transmission switching mechanism is configured to be switched between a two-way flywheel mode and a one-way flywheel mode; when the driving wheel rotates in the first direction, the driving wheel drives the flywheel body to rotate in the first direction. When the flywheel body rotates in the second direction, the flywheel body is driven to rotate in the second direction under the condition that the transmission switching mechanism is in the bidirectional flywheel mode, and the flywheel body freely rotates in the second direction relative to the flywheel body under the condition that the transmission switching mechanism is in the unidirectional flywheel mode; the switching control assembly at least comprises a rotation detection sensor and a control unit, and the rotation detection sensor is configured to acquire whether the driving wheel is in a static state or not; the control unit is configured to receive a bidirectional switching instruction and control the transmission switching mechanism to be switched to a bidirectional flywheel mode when the driving wheel is in a static state.

Description

Technical Field

[0001] The present disclosure relates to the field of fitness equipment, and in particular, to an exercise bike. 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] Among them, when the user is pedaling on the existing fitness bikes on the market, when the user forcibly switches between the unidirectional magnetic control system and the bidirectional magnetic control system, the transmission gears may collide, causing damage to the structure of the fitness bike and even threatening the user's personal safety. Utility Model Content

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

[0007] According to a first aspect of the present disclosure, there is provided an exercise bike, comprising:

[0008] Flywheel body;

[0009] A driving wheel, wherein the driving wheel is configured to rotate under the action of an external force;

[0010] A transmission switching mechanism, wherein the transmission switching mechanism is configured to switch between a bidirectional flywheel mode and a unidirectional flywheel mode; wherein the driving wheel is configured to drive the flywheel body to rotate in the first direction when rotating in the first direction; when rotating in the second direction, the flywheel body is driven to rotate in the second direction when the transmission switching mechanism is in the bidirectional flywheel mode, and freely rotate relative to the flywheel body in the second direction when the transmission switching mechanism is in the unidirectional flywheel mode;

[0011] A switching control component, the switching control component at least includes a rotation detection sensor and a control unit, the rotation detection sensor is configured to obtain whether the driving wheel is in a stationary state; the control unit is configured to receive a two-way switching instruction and control the transmission switching mechanism to switch to a two-way flywheel mode when the driving wheel is in a stationary state.

[0012] In one embodiment of the present disclosure, the control unit is further configured to accept a one-way switching instruction and control the transmission switching mechanism to switch to a one-way flywheel mode.

[0013] In one embodiment of the present disclosure, the transmission switching mechanism also includes a transmission switching motor, which is constructed to control the transmission switching mechanism to switch from a unidirectional flywheel mode to a bidirectional flywheel mode when rotating in a first direction, and to control the transmission switching mechanism to switch from a bidirectional flywheel mode to a unidirectional flywheel mode when rotating in a second direction.

[0014] In one embodiment of the present disclosure, the transmission switching mechanism further includes a transmission switching sensor, and the transmission switching sensor is configured to obtain whether the transmission switching mechanism has switched to a unidirectional flywheel mode or a bidirectional flywheel mode;

[0015] The control unit is further configured to control the transmission switching motor to stop when the transmission switching sensor has acquired the information that the transmission switching mechanism has switched to the one-way flywheel mode, when the transmission switching motor is controlled to rotate in the first direction;

[0016] And when the transmission switching motor is controlled to rotate in the second direction, when the transmission switching sensor has obtained that the transmission switching sensor has detected that the transmission switching mechanism has switched to the bidirectional flywheel mode, the transmission switching motor is controlled to stop.

[0017] In one embodiment of the present disclosure, the rotation detection sensor is configured to detect the rotation state of the driving wheel to obtain whether the driving wheel is in a stationary state.

[0018] In one embodiment of the present disclosure, it also includes:

[0019] A driving disc, wherein the driving disc is configured to drive the driving wheel to rotate via a driving belt;

[0020] A foot pedal, the foot pedal is fixedly arranged at the axis of the active disk;

[0021] The rotation detection sensor is configured to detect the rotation state of the driving plate or the foot pedal to obtain whether the driving wheel is in a stationary state.

[0022] In one embodiment of the present disclosure, the transmission switching mechanism includes a first transmission gear, a second transmission gear and a steering gear, the first transmission gear is configured to be controlled by the rotation of the driving wheel, the second transmission gear is configured to at least drive the driven wheel on the flywheel body to rotate, and the transmission switching mechanism is configured to be in a two-way flywheel mode when the steering gear is engaged with the first transmission gear and the second transmission gear at the same time, and to be in a unidirectional flywheel mode when the steering gear is separated from at least one of the first transmission gear and the second transmission gear.

[0023] In one embodiment of the present disclosure, the steering gear is rotatably disposed on a rotating frame, and the rotating frame is constructed to be coaxially disposed with one of the first transmission gear and the second transmission gear so that the steering gear maintains meshing with one of the first transmission gear and the second transmission gear.

[0024] In one embodiment of the present disclosure, the rotating frame is configured to move between a first limit position and a second limit position. When the rotating frame is located at the first limit position, the steering gear is in a bidirectional flywheel mode while being engaged with the first transmission gear and the second transmission gear at the same time. When the rotating frame is located at the second limit position, the steering gear is separated from at least one of the first transmission gear and the second transmission gear.

[0025] The transmission switching sensor includes a first detection unit set at the first limit position and a second detection unit set at the second limit position. The first detection unit is configured to be triggered when the rotating frame reaches the first limit position, and the second detection unit is configured to be triggered when the rotating frame reaches the second limit position.

[0026] In one embodiment of the present disclosure, the first detection unit and / or the second detection unit is a micro switch, a magnetic field sensor or a photoelectric sensor.

[0027] During use of the fitness bike of the present invention, when the user pedals in the unidirectional flywheel mode, since the driving wheel is in the process of rotating, the rotation detection sensor will obtain that the driving wheel is in a rotating state and is not in a stationary state. Therefore, when the user presses the two-way switching command and wants to switch to the two-way flywheel mode, the control unit will not immediately control the transmission switching mechanism to switch to the two-way flywheel mode after receiving the two-way switching command, but will wait until the speed of the flywheel body is slowed down to a stationary state due to the resistance, and then control the transmission switching mechanism to switch to the two-way flywheel mode.

[0028] During use of the fitness bike of the present invention, when the user is using the unidirectional flywheel mode and is not pedaling, the driving wheel is in a stationary state. Therefore, when the user presses the bidirectional switching command and wants to switch to the bidirectional flywheel mode, the control unit will immediately control the transmission switching mechanism to switch to the bidirectional flywheel mode upon receiving the bidirectional switching command.

[0029] It can be seen that when the user switches the exercise bike of the present invention from the unidirectional flywheel mode to the bidirectional flywheel mode, the control unit can be controlled according to whether the driving wheel is in a stationary state, thereby effectively avoiding the collision of the transmission gears in the transmission switching mechanism, avoiding damage to the transmission switching mechanism, and effectively avoiding injuries to the user, thereby improving the safety of the use of the exercise bike.

[0030] 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

[0031] 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.

[0032] Figure 1 is a three-dimensional diagram of a fitness bike provided by an embodiment of the present disclosure;

[0033] Figure 2 is a side view of a fitness bike provided by an embodiment of the present disclosure;

[0034] Figure 3 is a partial stereoscopic diagram of a fitness bike provided by an embodiment of the present disclosure;

[0035] Figure 4 is a cross-sectional view of an exercise bike provided by an embodiment of the present disclosure;

[0036] Figure 5 is a three-dimensional diagram of a transmission switching mechanism provided by an embodiment of the present disclosure;

[0037] Figure 6 It is a cross-sectional view of the transmission switching mechanism provided in an embodiment of the present disclosure.

[0038] Figures 1 to 6 The corresponding relationship between the names of the components and the reference numerals is as follows:

[0039] 11. flywheel body; 12. driving wheel; 13. driven wheel; 14. transmission sleeve; 151. one-way bearing; 152. auxiliary support bearing; 161. fixed bracket; 162. fixed shaft; 171. first support bearing; 172. second support bearing; 20. transmission switching mechanism; 211. first transmission gear; 212. second transmission gear; 22. steering gear; 231. first synchronous wheel; 232. second synchronous wheel; 233. first bearing; 234. second bearing; 24. rotating frame; 25. moving connecting rod; 251. limiting part; 26. housing; 261. limiting mouth; 271. transmission switching wheel; 272. transmission switching screw; 273. transmission switching motor; 31. driving disk; 32. driving transmission belt; 41. first transmission belt; 42. second transmission belt. DETAILED DESCRIPTION

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] The specific embodiments of the present disclosure are described below in conjunction with the accompanying drawings.

[0045] 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.

[0046] 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.

[0047] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0048] The present disclosure provides a fitness bike, which can be a fitness bike such as a spinning bike. Specifically, the fitness bike at least includes a flywheel body, a driving wheel, a transmission switching mechanism, and a switching control component. The driving wheel is configured to rotate under the action of an external force; the transmission switching mechanism is configured to switch between a bidirectional flywheel mode and a unidirectional flywheel mode; wherein the driving wheel is configured to drive the flywheel body to rotate in the first direction when rotating in the first direction; when rotating in the second direction, the flywheel body is driven to rotate in the second direction when the transmission switching mechanism is in the bidirectional flywheel mode, and freely rotates relative to the flywheel body in the second direction when the transmission switching mechanism is in the unidirectional flywheel mode; the switching control component at least includes a rotation detection sensor and a control unit, the rotation detection sensor is configured to obtain whether the driving wheel is in a stationary state; the control unit is configured to receive a bidirectional switching instruction, and when the driving wheel is in a stationary state, control the transmission switching mechanism to switch to the bidirectional flywheel mode.

[0049] It is understandable that the fitness bike of the present disclosure may also be provided with devices such as pedals, and the user can drive the driving wheel to rotate by stepping on the pedals.

[0050] In this way, during the use of the fitness bike of the present invention, when the user pedals in the unidirectional flywheel mode, since the driving wheel is in the process of rotating, the rotation detection sensor will obtain that the driving wheel is in a rotating state and is not in a stationary state. Therefore, when the user presses the two-way switching command and wants to switch to the two-way flywheel mode, the control unit will not immediately control the transmission switching mechanism to switch to the two-way flywheel mode after receiving the two-way switching command, but will wait until the speed of the flywheel body is slowed down to a stationary state due to the resistance, and then control the transmission switching mechanism to switch to the two-way flywheel mode.

[0051] During use of the fitness bike of the present invention, when the user is using the unidirectional flywheel mode and is not pedaling, the driving wheel is in a stationary state. Therefore, when the user presses the bidirectional switching command and wants to switch to the bidirectional flywheel mode, the control unit will immediately control the transmission switching mechanism to switch to the bidirectional flywheel mode upon receiving the bidirectional switching command.

[0052] It can be seen that when the user switches the exercise bike of the present invention from the unidirectional flywheel mode to the bidirectional flywheel mode, the control unit can be controlled according to whether the driving wheel is in a stationary state, thereby effectively avoiding the collision of the transmission gears in the transmission switching mechanism, avoiding damage to the transmission switching mechanism, and effectively avoiding injuries to the user, thereby improving the safety of the use of the exercise bike.

[0053] For ease of understanding, refer to Figures 1 to 6 , the specific structure and working principle of the fitness bike disclosed in the present invention are explained in detail in combination with an embodiment.

[0054] like Figure 1 and Figure 2 As shown, the present disclosure provides a fitness bike, which can be a spinning bike or other forms of fitness bikes, which are not limited here.

[0055] Specifically, the fitness bike at least includes a flywheel body 11, a driving wheel 12, a transmission switching mechanism 20 and a switching control component. 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, which can generate a magnetic field at the flywheel body 11, so that during the rotation of the flywheel body 11, the magnetic field generated by the magnetic resistance component 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, 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.

[0056] Among them, Figure 1 In the embodiment shown in , the fitness bike of the present disclosure further includes an active disc 31 and a foot pedal, the active disc 31 is configured to drive the active wheel 12 to rotate through an active belt; the foot pedal is fixedly arranged at the axis of the active disc 31; the user steps on the foot pedal to drive the active wheel 12 to rotate through the active disc 31 and the active transmission belt 32. It can be understood that due to the large size difference between the active disc 31 and the active wheel 12, when the user steps on one circle, the active 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.

[0057] In another embodiment of the present disclosure, the foot pedal may be directly disposed on the driving wheel 12 to directly drive the driving wheel 12 to rotate; other structures may also be used to drive the driving wheel 12 to rotate, which is not limited here.

[0058] The transmission switching mechanism 20 is configured to switch between a two-way flywheel mode and a unidirectional flywheel mode; wherein the driving wheel 12 is constructed to drive the flywheel body 11 to rotate in the first direction when rotating in the first direction; when rotating in the second direction, when the transmission switching mechanism 20 is in the two-way flywheel mode, it drives the flywheel body 11 to rotate in the second direction, and when the transmission switching mechanism 20 is in the unidirectional flywheel mode, it rotates freely in the second direction relative to the flywheel body 11.

[0059] The switching control component includes at least a rotation detection sensor and a control unit, wherein the rotation detection sensor is configured to obtain whether the driving wheel 12 is in a stationary state; and the control unit is configured to receive a two-way switching instruction and control the transmission switching mechanism 20 to switch to a two-way flywheel mode when the driving wheel 12 is in a stationary state.

[0060] It is understandable that the fitness bike of the present disclosure may also be provided with devices such as pedals, and the user can drive the driving wheel 12 to rotate by stepping on the pedals.

[0061] In this way, during the use of the fitness bike of the present invention, when the user pedals in the unidirectional flywheel mode, since the driving wheel 12 is in the process of rotating, the rotation detection sensor will obtain that the driving wheel 12 is in a rotating state and is not in a stationary state. Therefore, when the user presses the two-way switching command and wants to switch to the two-way flywheel mode, the control unit will not immediately control the transmission switching mechanism 20 to switch to the two-way flywheel mode after receiving the two-way switching command, but will wait until the speed of the flywheel body 11 is slowed down to a stationary state due to the resistance, and then control the transmission switching mechanism 20 to switch to the two-way flywheel mode.

[0062] During use of the fitness bike of the present invention, when the user is using the unidirectional flywheel mode and is not pedaling, since the driving wheel 12 is in a stationary state, when the user presses the bidirectional switching command and wants to switch to the bidirectional flywheel mode, the control unit will immediately control the transmission switching mechanism 20 to switch to the bidirectional flywheel mode upon receiving the bidirectional switching command.

[0063] It can be seen that when the user switches the exercise bike of the present invention from the unidirectional flywheel mode to the bidirectional flywheel mode, the control unit can be controlled according to whether the driving wheel 12 is in a stationary state, thereby effectively avoiding the collision of the transmission gears in the transmission switching mechanism 20, avoiding damage to the transmission switching mechanism 20, and effectively avoiding injuries to the user, thereby improving the safety of the use of the exercise bike.

[0064] In order to make the transmission switching mechanism 20 in the one-way flywheel mode, the driving wheel 12 is configured to drive the flywheel body 11 to rotate in the first direction when rotating in the first direction. Figure 4 As shown, in the fitness bike of the present disclosure, a one-way bearing 151 is embedded in the axial opening of the flywheel body 11 , and when the driving wheel 12 rotates in the first direction, the one-way bearing 151 can drive the flywheel body 11 to rotate in the first direction.

[0065] In one embodiment of the present disclosure, the control unit is further configured to receive a one-way switching instruction and control the transmission switching mechanism 20 to switch to the one-way flywheel mode. It is understandable that after the transmission switching mechanism 20 switches to the one-way flywheel mode, when the driving wheel 12 rotates in the second direction, it can freely rotate in the second direction relative to the flywheel body 11, and the transmission switching mechanism 20 is in a power cut-off state. The fitness bike of the present disclosure can work normally without gear collisions. In this way, whether the user is in a pedaling state or the driving wheel 12 is in a stationary state, the fitness bike of the present disclosure can switch to the one-way flywheel mode.

[0066] 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 is needed to ensure riding safety.

[0067] However, for the fitness bike disclosed in the present invention, when the user uses the two-way 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 fitness bike.

[0068] Specifically, in one embodiment of the present disclosure, the transmission switching mechanism 20 further includes a transmission switching motor 273, and the transmission switching motor 273 is configured to control the transmission switching mechanism 20 to switch from a unidirectional flywheel mode to a bidirectional flywheel mode when rotating in a first direction, and to control the transmission switching mechanism 20 to switch from a bidirectional flywheel mode to a unidirectional flywheel mode when rotating in a second direction. In this way, the control unit can control the flywheel mode to be switched by the transmission switching mechanism 20 by controlling the rotation direction of the transmission switching motor 273, and the control logic is simple and the reliability is high.

[0069] Further, in one embodiment of the present disclosure, the transmission switching mechanism 20 also includes a transmission switching sensor, which is constructed to obtain whether the transmission switching mechanism 20 has switched to the unidirectional flywheel mode or the bidirectional flywheel mode; the control unit is also configured to control the transmission switching motor 273 to stop when the transmission switching sensor has obtained that the transmission switching sensor has detected that the transmission switching mechanism 20 has switched to the unidirectional flywheel mode when controlling the transmission switching motor 273 to rotate in the first direction; and control the transmission switching motor 273 to stop when the transmission switching sensor has obtained that the transmission switching sensor has detected that the transmission switching mechanism 20 has switched to the bidirectional flywheel mode when controlling the transmission switching motor 273 to rotate in the second direction.

[0070] In this way, during the use of the fitness bike of the present invention, after the control unit controls the transmission switching motor 273 to rotate, when the transmission switching sensor has obtained that the transmission switching mechanism 20 has switched to the corresponding target flywheel mode, the control unit promptly controls the transmission switching motor 273 to stop, thereby preventing the transmission switching motor 273 from continuing to rotate dry, avoiding structural damage, and extending the practical life of the fitness bike of the present invention.

[0071] There are many ways to detect the rotation state of the driving wheel 12. For example, in one embodiment of the present disclosure, the rotation detection sensor is configured to detect the rotation state of the driving wheel 12 to obtain whether the driving wheel 12 is in a stationary state. In another embodiment of the present disclosure, the rotation detection sensor of the present disclosure is configured to detect the rotation state of the driving disk 31 or the foot pedal to obtain whether the driving wheel 12 is in a stationary state. It can be understood that when the rotation speed of the driving wheel 12, the driving disk 31 or the foot pedal is lower than the set threshold, it can be determined that the driving wheel 12 is in a stationary state, and the non-driving wheel 12 can be in a stationary state only when it is motionless.

[0072] It is understandable that when the rotation detection sensor detects the rotation state of the driving wheel 12 to obtain whether the driving wheel 12 is in a stationary state, the rotation detection sensor can be applied to a fitness bike without a driving disc 31 or a pedal. The rotation detection sensor detects the rotation state of the driving disc 31 or the pedal to obtain whether the driving wheel 12 is in a stationary state. Since the movement amplitude of the driving disc 31 or the pedal is usually much larger than that of the driving wheel 12, the detection accuracy of the rotation detection sensor can be effectively improved.

[0073] Specifically, the transmission switching mechanism 20 of the fitness bike disclosed in the present invention may have various structures. Figure 5 and Figure 6 As shown, in one embodiment of the present disclosure, the transmission switching mechanism 20 includes a first transmission gear 211, a second transmission gear 212 and a steering gear 22. The first transmission gear 211 is configured to be controlled by the driving wheel 12 to rotate, and the second transmission gear 212 is configured to at least drive the driven wheel 13 on the flywheel body 11 to rotate. The transmission switching mechanism 20 is configured to be in a two-way flywheel mode when the steering gear 22 is engaged with the first transmission gear 211 and the second transmission gear 212 at the same time, and to be in a unidirectional flywheel mode when the steering gear 22 is separated from at least one of the first transmission gear 211 and the second transmission gear 212.

[0074] It is understandable that there are many specific ways for the first transmission gear 211 to be controlled by the driving wheel 12 to rotate, and for the second transmission gear 212 to drive the driven wheel 13 to rotate.

[0075] For example, Figure 3 As shown, in one embodiment of the present disclosure, the transmission switching mechanism 20 also includes a first synchronous wheel 231 and a second synchronous wheel 232; the first synchronous wheel 231 is fixed and coaxially arranged with the first transmission gear 211, and is transmission-connected to the driving wheel 12 through the first transmission belt 41; the second synchronous wheel 232 is fixed and coaxially arranged with the second transmission gear 212, and is transmission-connected to the driven wheel 13 through the second transmission belt 42.

[0076] In this way, Figure 3 The direction in the figure is taken as the standard, the rotation direction of the driving wheel 12 is always consistent with that of the first transmission gear 211, and the rotation direction of the driven wheel 13 is always consistent with that of the second rotation gear. When the steering gear 22 is meshed with the first transmission gear 211 and the second transmission gear 212 at the same time, since the rotation direction of the steering gear 22 is opposite to that of the first transmission gear 211 and the second transmission gear 212, it can be ensured that when the steering gear 22 is meshed with the first transmission gear 211 and the second transmission gear 212 at the same time, the rotation direction of the driving wheel 12 is always consistent with that of the driven wheel 13, and will not conflict with the setting direction of the one-way bearing 151.

[0077] In another embodiment of the present disclosure, the driving wheel 12, the driven wheel 13, the first synchronous wheel 231 and the second synchronous wheel 232 are also gears, and the driving wheel 12 is meshed with the first synchronous wheel 231, and the second synchronous wheel 232 is meshed with the driven wheel 13. It can also ensure that when the steering gear 22 is meshed with the first transmission gear 211 and the second transmission gear 212 at the same time, the rotation direction of the driving wheel 12 is consistent with the rotation direction of the driven wheel 13. The specific principles are similar and will not be repeated here.

[0078] It is understandable that in another embodiment of the present disclosure, other transmission methods can also be used, as long as the rotation direction of the driving wheel 12 is consistent with the rotation direction of the driven wheel 13 when the steering gear 22 is engaged with the first transmission gear 211 and the second transmission gear 212 at the same time.

[0079] Thus, during the use of the fitness bike of the present disclosure, when the user uses the one-way flywheel mode, the user only needs to control the steering gear 22 to separate from at least one of the first transmission gear 211 and the second transmission gear 212. Thus, 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.

[0080] When the user uses the two-way flywheel mode, the steering gear 22 can be controlled to engage with the first transmission gear 211 and the second transmission gear 212 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.

[0081] Further, such as Figure 5 As shown, in one embodiment of the present disclosure, the steering gear 22 is configured to maintain meshing with one of the first transmission gear 211 and the second transmission gear 212, and can switch between meshing and separation states relative to the other. In this way, when the fitness bike of the present disclosure switches between the unidirectional flywheel mode and the bidirectional flywheel mode, it is only necessary to control the steering gear 22 to move relative to one of the first transmission gear 211 and the second transmission gear 212, and the steering gear 22 to move relative to one of the first transmission gear 211 and the second transmission gear 212. In this way, the difficulty of docking the steering gear 22 with the first transmission gear 211 or the second transmission gear 212 can be effectively reduced, thereby improving the reliability of the transmission switching mechanism 20 of the present disclosure.

[0082] Further, such as Figure 5 As shown, in one embodiment of the present disclosure, the steering gear 22 is rotatably disposed on a rotating frame 24, and the rotating frame 24 is constructed to be coaxially disposed with one of the first transmission gear 211 and the second transmission gear 212 so that the steering gear 22 remains in meshing with one of the first transmission gear 211 and the second transmission gear 212.

[0083] by Figure 5 For example, since the steering gear 22 is rotatably arranged on the rotating frame 24, the rotating frame 24 is coaxially arranged with the second transmission gear 212, so that when the rotating frame 24 drives the steering gear 22 to move, the steering gear 22 is kept in mesh with one of the second transmission gears 212, and the steering gear 22 can switch between the meshing and separation states with the first transmission gear 211; moreover, the rotating frame 24 will not affect the normal rotation of the steering gear 22, so that the steering gear 22 can transmit power by rotation when in the two-way flywheel mode. In another embodiment of the present disclosure, the rotating frame 24 can be coaxially arranged with the first transmission gear 211, and the principle is similar, which will not be repeated here.

[0084] like Figure 5 As shown, in one embodiment of the present disclosure, the transmission switching mechanism 20 also includes a moving link 25, the first end of the moving link 25 is constructed to be rotatably disposed on the rotating frame 24, and the second end is constructed to move under the action of an external force to drive the steering gear 22 to move, so that the steering gear 22 is switched between a state of simultaneously meshing with the first transmission gear 211 and the second transmission gear 212, or being separated from at least one of the first transmission gear 211 and the second transmission gear 212.

[0085] In this way, by pulling the moving link 25, the rotating frame 24 can be rotated, and then the steering gear 22 can be pulled to move, so that the steering gear 22 can be switched between simultaneously meshing with the first transmission gear 211 and the second transmission gear 212, or being separated from at least one of the first transmission gear 211 and the second transmission gear 212. In this way, the overall principle is simple, the structure is simple, and the reliability is relatively high.

[0086] like Figure 2 and Figure 5 As shown, in one embodiment of the present disclosure, the transmission switching mechanism 20 further includes a housing 26, and the first transmission gear 211 and the second transmission gear 212 are rotatably disposed in the housing 26; specifically, as shown in FIG. Figure 4 As shown, the first transmission gear 211 can be rotatably disposed in the housing 26 via a first bearing 233 disposed on the first rotating shaft, and the first transmission gear 211 can be rotatably disposed in the housing 26 via a second bearing 234 disposed on the second rotating shaft.

[0087] Among them, Figure 2 As shown, the motion link 25 is provided with a limit portion 251 extending perpendicular to the motion direction of the motion link 25; the housing 26 is provided with a limit opening 261, and the limit portion 251 is configured to penetrate the limit opening 261 and move between the two ends of the limit opening 261 during the movement of the steering gear 22. By providing the limit opening 261 on the housing 26 to limit the movement of the limit portion 251, the movement range of the transmission link can be effectively limited, preventing the steering gear 22 from excessively moving away from or approaching the first transmission gear 211 during the movement, and ensuring that the steering gear 22 moves within a set range.

[0088] There are many ways to pull the motion link 25 to rotate. Figure 5 As shown, in one embodiment of the present disclosure, the transmission switching mechanism 20 further includes a transmission switching wheel 271, the second end of the motion link 25 is configured to be eccentric and rotatably disposed on the transmission switching wheel 271, and the transmission switching wheel 271 is configured to drive the rotating frame 24 to move through the motion link 25 during the rotation process. It can be understood that during the rotation process of the transmission switching wheel 271, the rotating frame 24 can be driven to move through the motion link 25, thereby driving the steering gear 22 to move. It can be understood that Figure 5 Taking the embodiment in as an example, when the transmission switching wheel 271 rotates clockwise, it can drive the rotating frame 24 to move through the moving connecting rod 25, thereby driving the steering gear 22 to approach the first transmission gear 211; when the transmission switching wheel 271 rotates counterclockwise, it can drive the rotating frame 24 to move through the moving connecting rod 25, thereby driving the steering gear 22 away from the first transmission gear 211.

[0089] It is understandable that a common motor or a reduction motor or the like can be directly arranged on the axis of the transmission switch to directly drive the transmission switch wheel 271 to move. In another embodiment of the present disclosure, in order to achieve more precise control, such as Figure 5 As shown, in one embodiment of the present disclosure, the transmission switching mechanism 20 further includes a transmission switching screw 272, which is meshed with the transmission switching wheel 271, and is configured to drive the transmission switching wheel 271 to rotate when the transmission switching screw 272 rotates. The transmission switching screw 272 is directly fixedly connected to the output shaft of the drive motor, so that the angle of the transmission switching wheel 271 is very small for each rotation of the transmission switching screw 272, so that the adjustment accuracy can be effectively improved, and the transmission switching mechanism 20 of the present disclosure can also be applied to various motors with higher rotation speeds.

[0090] like Figure 4 As shown, in one embodiment of the present disclosure, the driving wheel 12 is located on the same side of the driven wheel 13, so that the driven wheel 13 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 4 As shown, in one embodiment of the present disclosure, the fitness bike of the present disclosure further includes a transmission sleeve 14, which is arranged through the driving wheel 12, the driven wheel 13 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. 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 the arrangement of the driven wheel 13 will not be affected.

[0091] Further, such as Figure 4 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 13 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.

[0092] Moreover, if Figure 4As 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 provided 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 13, thereby improving the service life of the fitness vehicle of the present disclosure.

[0093] It is understandable that since the fitness bike of the present invention remains stationary as a whole during use, Figure 4 As shown, in one embodiment of the present disclosure, the fitness bike 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.

[0094] 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, reducing the rotation resistance of the transmission sleeve 14, and avoiding wear between the transmission sleeve 14 and the fixed shaft 162, thereby effectively extending the service life of the fitness vehicle of the present disclosure.

[0095] As described above, since the steering gear 22 is controlled by the rotating frame 24 to rotate, the transmission switching mechanism 20 switches between the two-way flywheel mode and the one-way flywheel mode. Therefore, in one embodiment of the present disclosure, the rotating frame 24 is constructed to move between the first limit position and the second limit position. When the rotating frame 24 is at the first limit position, the steering gear 22 is in the two-way flywheel mode when it is simultaneously engaged with the first transmission gear 211 and the second transmission gear 212. When the rotating frame 24 is at the second limit position, the steering gear 22 is separated from at least one of the first transmission gear 211 and the second transmission gear 212; the transmission switching sensor includes a first detection unit set at the first limit position and a second detection unit set at the second limit position. The first detection unit is configured to be triggered when the rotating frame 24 reaches the first limit position, and the second detection unit is configured to be triggered when the rotating frame 24 reaches the second limit position.

[0096] by Figure 5For example, the transmission switching wheel 271 can drive the rotating frame 24 to move through the moving connecting rod 25 during the clockwise rotation, thereby driving the steering gear 22 to approach the first transmission gear 211. When the rotating frame 24 rotates clockwise to the first limit position, the steering gear 22 is meshed with the first transmission gear 211 and the second transmission gear 212 at the same time, and the first detection unit can be triggered. In this way, the control unit can timely control the transmission switching motor 273 to stop, and prevent the transmission switching motor 273 from being blocked. Similarly, the transmission switching wheel 271 can drive the rotating frame 24 to move through the moving connecting rod 25 during the counterclockwise rotation, thereby driving the steering gear 22 away from the first transmission gear 211. When the rotating frame 24 rotates counterclockwise to the first limit position, the steering gear 22 is meshed with the first transmission gear 211 and the second transmission gear 212 at the same time, and the second detection unit can be triggered. In this way, the control unit can also timely control the transmission switching motor 273 to stop, and prevent the transmission switching motor 273 from being blocked, thereby effectively protecting the transmission switching mechanism 20.

[0097] Furthermore, in one embodiment of the present disclosure, the first detection unit and / or the second detection unit is a micro switch, a magnetic field sensor or a photoelectric sensor. The response time of these sensors is extremely short, the reaction is sensitive and the precision is high, which can ensure that when the rotating frame 24 moves to the first limit position or the second limit position, the first detection unit and / or the second detection unit can be triggered immediately, thereby immediately controlling the transmission switching motor 273, protecting the transmission switching mechanism 20, and extending the service life of the transmission switching mechanism 20.

[0098] 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 fitness bike, characterized in that: include: Flywheel body (11); A driving wheel (12), wherein the driving wheel (12) is configured to rotate under the action of an external force; A transmission switching mechanism (20), the transmission switching mechanism (20) being configured to switch between a bidirectional flywheel mode and a unidirectional flywheel mode; wherein the driving wheel (12) is configured to drive the flywheel body (11) to rotate in the first direction when rotating in the first direction; and to drive the flywheel body (11) to rotate in the second direction when rotating in the second direction when the transmission switching mechanism (20) is in the bidirectional flywheel mode, and to freely rotate relative to the flywheel body (11) in the second direction when the transmission switching mechanism (20) is in the unidirectional flywheel mode; A switching control component, the switching control component at least comprising a rotation detection sensor and a control unit, the rotation detection sensor being configured to obtain whether the driving wheel (12) is in a stationary state; the control unit being configured to receive a bidirectional switching instruction and control the transmission switching mechanism (20) to switch to a bidirectional flywheel mode when the driving wheel (12) is in a stationary state.

2. The fitness bike according to claim 1, characterized in that: The control unit is also configured to receive a one-way switching instruction and control the transmission switching mechanism (20) to switch to a one-way flywheel mode.

3. The fitness bike according to claim 2, characterized in that: The transmission switching mechanism (20) further comprises a transmission switching motor (273), wherein the transmission switching motor (273) is configured to control the transmission switching mechanism (20) to switch from a unidirectional flywheel mode to a bidirectional flywheel mode when rotating in a first direction, and to control the transmission switching mechanism (20) to switch from a bidirectional flywheel mode to a unidirectional flywheel mode when rotating in a second direction.

4. The fitness bike according to claim 3, characterized in that: The transmission switching mechanism (20) further comprises a transmission switching sensor, wherein the transmission switching sensor is configured to obtain whether the transmission switching mechanism (20) has switched to a unidirectional flywheel mode or a bidirectional flywheel mode; The control unit is further configured to control the transmission switching motor (273) to stop when the transmission switching sensor has acquired the information that the transmission switching sensor has detected that the transmission switching mechanism (20) has switched to the one-way flywheel mode, when the transmission switching motor (273) is controlled to rotate in the first direction; And when the transmission switching motor (273) is controlled to rotate in the second direction, when the transmission switching sensor has obtained that the transmission switching sensor has detected that the transmission switching mechanism (20) has switched to the bidirectional flywheel mode, the transmission switching motor (273) is controlled to stop.

5. The fitness bike according to claim 1, characterized in that: The rotation detection sensor is configured to detect the rotation state of the driving wheel (12) to obtain whether the driving wheel (12) is in a stationary state.

6. The fitness bike according to claim 1, characterized in that: Also includes: A driving disc (31), wherein the driving disc (31) is configured to drive the driving wheel (12) to rotate via a driving belt; A foot pedal, the foot pedal being fixedly arranged at the axis of the active disk (31); The rotation detection sensor is configured to detect the rotation state of the driving plate (31) or the foot pedal, so as to obtain whether the driving wheel (12) is in a stationary state.

7. The fitness bike according to claim 4, characterized in that: The transmission switching mechanism (20) comprises a first transmission gear (211), a second transmission gear (212) and a steering gear (22); the first transmission gear (211) is configured to be controlled to rotate by the driving wheel (12); the second transmission gear (212) is configured to at least drive the driven wheel (13) on the flywheel body (11) to rotate; the transmission switching mechanism (20) is configured to be in a bidirectional flywheel mode when the steering gear (22) is simultaneously meshed with the first transmission gear (211) and the second transmission gear (212); and to be in a unidirectional flywheel mode when the steering gear (22) is separated from at least one of the first transmission gear (211) and the second transmission gear (212).

8. The fitness bike according to claim 7, characterized in that: The steering gear (22) is rotatably disposed on a rotating frame (24), and the rotating frame (24) is configured to be coaxially disposed with one of the first transmission gear (211) and the second transmission gear (212), so that the steering gear (22) maintains meshing with one of the first transmission gear (211) and the second transmission gear (212).

9. The fitness bike according to claim 8, characterized in that: The rotating frame (24) is configured to move between a first limit position and a second limit position. When the rotating frame (24) is located at the first limit position, the steering gear (22) is in a two-way flywheel mode while being meshed with the first transmission gear (211) and the second transmission gear (212). When the rotating frame (24) is located at the second limit position, the steering gear (22) is separated from at least one of the first transmission gear (211) and the second transmission gear (212). The transmission switching sensor comprises a first detection unit arranged at the first limit position and a second detection unit arranged at the second limit position, the first detection unit being configured to be triggered when the rotating frame (24) reaches the first limit position, and the second detection unit being configured to be triggered when the rotating frame (24) reaches the second limit position.

10. The fitness bike according to claim 9, characterized in that: The first detection unit and / or the second detection unit is a micro switch, a magnetic field sensor or a photoelectric sensor.

Images