Parachute device and trainer equipped therewith

Abstract

The application relates to a slow descent device and a training device provided with the same, and the slow descent device is used for slowing down the speed of a resistance end of the training device during a descending return stroke. The slow descent device comprises a synchronous wheel, a second transmission member and a resistance assembly. The synchronous wheel is rotationally arranged on a support, and the synchronous wheel is in transmission connection with a direction-changing wheel. The second transmission member is arranged around the synchronous wheel. The resistance assembly is arranged on one side of the synchronous wheel, and the resistance assembly is connected with the synchronous wheel through the second transmission member. The resistance assembly is used for providing resistance when the synchronous wheel rotates, so as to slow down the rotating speed of the direction-changing wheel. The slow descent device and the training device provided with the same have the advantages that the rotating state of the direction-changing wheel is synchronized through the synchronous wheel, the rotating speed of the synchronous wheel is influenced through the resistance assembly, the rotating speed of the direction-changing wheel is slowed down, the stall of the resistance end of the training device during the descending return stroke is prevented, the slow descent control is provided for the resistance end, the use safety of the training device is improved, the environmental noise is reduced, and the use scene of the training device is expanded.

Description

Technical Field

[0001] This application belongs to the field of fitness equipment technology, and in particular relates to a slow-descent device and a training device equipped with the same. Background Technology

[0002] In recent years, with the popularization of fitness awareness, the number of people exercising has continued to rise, which in turn has led to a continuous increase in the demand for fitness equipment.

[0003] Traditional stacked weight training devices include a support frame, a drive chain, pins, weights, and a drive wheel. The drive wheel rotates on the support frame, and the drive chain is wound around the drive wheel with one end connected to the resistance end of the trainer. The user pulls the resistance end of the trainer upwards at the other end of the drive chain to train. By inserting pins into the stacked weights, different numbers of weights are mounted on the resistance end of the trainer, thus creating different resistance levels during training.

[0004] However, when the user exhausts themselves and releases the drive chain, the resistance end of the trainer will be pulled up suddenly by gravity during the descent return, which can easily cause safety hazards to the user and those around them. In addition, the impact of the resistance end of the trainer after it falls will generate a lot of noise and reduce the service life of the equipment. Utility Model Content

[0005] To address the shortcomings of related technologies, this application provides a slow-descent device and a trainer equipped with it. By setting a synchronous wheel to synchronize the rotation of the deflection wheel, and by using a resistance component to affect the rotation speed of the synchronous wheel, the rotation speed of the deflection wheel is slowed down, thereby preventing the resistance end of the trainer from stalling during the descent return, providing slow-descent control for the resistance end, improving the safety of the trainer, reducing environmental noise, and expanding the application scenarios of the trainer.

[0006] On one hand, this application provides a slow-descent device for reducing the speed of the resistance end of a trainer during its descent return. The trainer includes a support, a first transmission member, and a reversing wheel. The reversing wheel is rotatably mounted on the support. The first transmission member is wound around the reversing wheel and has one end connected to the resistance end of the trainer, while the other end is used to pull the resistance end of the trainer upward for training. The slow-descent device includes:

[0007] A timing pulley is rotatably mounted on the bracket, and the timing pulley is connected to the reversing pulley via a transmission.

[0008] The second transmission component is wound around the synchronous pulley;

[0009] A resistance assembly is disposed on one side of the synchronous pulley. The resistance assembly is connected to the synchronous pulley through the second transmission member. The resistance assembly is used to provide resistance when the synchronous pulley rotates, so as to slow down the rotational speed of the reversing wheel.

[0010] In some embodiments, the descent device further includes:

[0011] A unidirectional force transmission component is disposed between the rotating shaft of the support and the reversing wheel and / or the synchronous wheel. The unidirectional force transmission component is used to transmit power to the reversing wheel and / or the synchronous wheel only when the resistance end of the trainer is descending back.

[0012] In some embodiments, the unidirectional force transmission element is a unidirectional bearing.

[0013] In some embodiments, the descent device further includes:

[0014] An auxiliary wheel is rotatably mounted on the bracket and located on one side of the deflector wheel, and the first transmission member is wound around the deflector wheel and the auxiliary wheel.

[0015] In some embodiments, the synchronizing pulley and the deflecting pulley are coaxially connected, and the outer diameter of the synchronizing pulley is larger than the outer diameter of the deflecting pulley.

[0016] In some embodiments, the resistance of the resistance component is derived from magnetic resistance.

[0017] In some embodiments, the resistance component includes:

[0018] A magnetic reluctance wheel is rotatably mounted on the bracket. The magnetic reluctance wheel is located on one side of the synchronous wheel and is connected to it through the second transmission component.

[0019] The magnetic components are respectively disposed on both sides of the magnetic reluctance wheel, and the magnetic components are used to provide magnetic force to the magnetic reluctance wheel to slow down its rotation speed.

[0020] In some embodiments, the resistance component further includes:

[0021] An adjustment structure is provided to drive the magnetic component to move relative to the reluctance wheel, thereby moving the magnetic component closer to or further away from the reluctance wheel.

[0022] In some embodiments, the adjustment structure includes:

[0023] A mounting base is provided on the bracket, the magnetic reluctance wheel is rotatably disposed within the mounting base, and the magnetic component is fixedly disposed on the mounting base;

[0024] The third transmission component has one end hinged to the mounting base and the other end used for gripping to drive the mounting base to move relative to the bracket, thereby causing the magnetic component to move closer to or further away from the magnetic resistance wheel.

[0025] On the other hand, a trainer is also provided, which is equipped with the descent device described in any of the above claims to slow down the speed of the resistance end of the trainer during the descent return.

[0026] In summary, this application provides a slow-descent device and a trainer equipped with it. By setting a synchronous wheel to synchronize the rotation of the directional wheel and by using a resistance component to influence the rotation speed of the synchronous wheel, the rotation speed of the directional wheel is slowed down, thereby preventing the resistance end of the trainer from stalling during the descent return stroke. This provides slow-descent control for the resistance end, improves the safety of the trainer, reduces environmental noise, and expands the trainer's application scenarios. A unidirectional force transmission component ensures that the resistance component only provides resistance during the descent return stroke of the trainer's resistance end, thereby improving the resistance accuracy during training. An auxiliary wheel is used to cooperate with the directional wheel transmission, increasing the transmission contact area between the auxiliary wheel and the first transmission component, preventing slippage of the first transmission component. When the synchronous wheel and the directional wheel are coaxially connected, the outer diameter of the synchronous wheel is set to be larger than that of the directional wheel to improve the sensitivity of the slow-descent control, thereby improving the slow-descent efficiency. By setting the resistance source of the resistance component to magnetic resistance, the accuracy of resistance control is improved. The cooperation between the magnetic resistance wheel and the magnetic component avoids excessive frictional loss, extending the service life of the equipment. An adjustment structure is provided to facilitate control of the output resistance.

[0027] Other features and advantages of this application will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practicing the invention. The objectives and other advantages of this application may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0029] Figure 1 This is a perspective view of the descent control device of this application.

[0030] In the picture:

[0031] 100, bracket; 200, first transmission component; 300, deflector wheel; 400, synchronous pulley; 500, second transmission component; 600, resistance assembly; 601, magnetic resistance wheel; 602, magnetic component; 603, mounting base; 604, third transmission component. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Specific Implementation Example 1

[0037] Reference Appendix Figure 1 , Figure 1 This is a perspective view of the descent control device of this application; the following is in conjunction with the appendix. Figure 1 Specific embodiments are described below.

[0038] Reference Appendix Figure 1 This application provides a slow-descent device for reducing the speed of the resistance end of the trainer during the descent return. The trainer also includes a support 100, a first transmission member 200, and a reversing wheel 300. The reversing wheel 300 is rotatably mounted on the support 100. The first transmission member 200 is wound around the reversing wheel 300 and one end is connected to the resistance end of the trainer, while the other end is used to pull the resistance end of the trainer upward for training.

[0039] The slow-descent device includes a synchronous pulley 400, a second transmission component 500, and a resistance component 600. The synchronous pulley 400 is rotatably mounted on the bracket 100 and is connected to the reversing wheel 300. The second transmission component 500 is wound around the synchronous pulley 400. The resistance component 600 is located on one side of the synchronous pulley 400 and is connected to the synchronous pulley 400 through the second transmission component 500. The resistance component 600 provides resistance when the synchronous pulley 400 rotates, thereby slowing down the rotational speed of the reversing wheel 300.

[0040] It should be noted that the support 100 is mounted on a bearing plane, the directional wheel 300 is located at the end of the support 100 away from the bearing plane, the directional wheel 300 is rotatably mounted on the shaft of the support 100, the first transmission component 200 is wound around the directional wheel 300, one end of the first transmission component 200 is connected to the resistance end of the trainer, and the user holds the other end of the first transmission component 200 for training.

[0041] When the user pulls the resistance end of the trainer away from the bearing plane through the first transmission component 200, the resistance end of the trainer rises relative to the bearing plane; after the user releases the force, the resistance end of the trainer moves towards the bearing plane under the action of gravity, and the resistance end of the trainer falls relative to the bearing plane.

[0042] Reference Appendix Figure 1 In some embodiments, the synchronizing wheel 400 of the descent device is rotatably mounted on the bracket 100, and the synchronizing wheel 400 is connected to the reversing wheel 300 in a transmission connection.

[0043] Specifically, the transmission connection methods include the synchronous pulley 400 and the reversing pulley 300 being located on both sides of the same rotating shaft and rotating coaxially; or the synchronous pulley 400 and the reversing pulley 300 being connected by a transmission belt through different rotating shafts; or the synchronous pulley 400 and the reversing pulley 300 being connected by a gear set.

[0044] Synchronizing pulley 400 includes, but is not limited to, sprockets, belt pulleys and pulleys. Synchronizing pulley 400 is used to synchronize the movement of directional wheel 300, and the movement of directional wheel 300 can be synchronously controlled by controlling synchronous pulley 400.

[0045] The second transmission component 500 of the descent device includes, but is not limited to, chains, belts and cables. The second transmission component 500 is wound around the synchronous pulley 400, and the resistance component 600 is connected to the synchronous pulley 400 through the second transmission component 500.

[0046] The second transmission component 500 is used to transmit the resistance provided by the resistance component 600 to the synchronous pulley 400, thereby achieving the technical effect of reducing the speed of the synchronous pulley 400 and thus reducing the speed of the reversing wheel 300.

[0047] In some embodiments, the synchronizing pulley 400 and the deflector pulley 300 are coaxially connected, and the outer diameter of the synchronizing pulley 400 is larger than the outer diameter of the deflector pulley 300.

[0048] Specifically, based on the coaxial connection between the synchronous pulley 400 and the reversing pulley 300, that is, when the synchronous pulley 400 and the reversing pulley 300 are set to rotate coaxially, their angular velocities ω are the same. The linear velocity of the reversing pulley 300 is expressed as v1=ω1*r1, while the linear velocity of the synchronous pulley 400 is expressed as v2=ω2*r2.

[0049] Where v1 represents the linear velocity of the directional wheel 300; ω1 represents the angular velocity of the directional wheel 300; r1 represents the radius of the directional wheel 300; v2 represents the linear velocity of the synchronous wheel 400; ω2 represents the angular velocity of the synchronous wheel 400; and r2 represents the radius of the synchronous wheel 400.

[0050] Since ω1=ω2, and the outer diameter of the synchronous pulley 400 is greater than the outer diameter of the reversing pulley 300, i.e. r2>r1;

[0051] Therefore, we can conclude that v2 > v1, meaning that when the angular velocities are the same, the linear velocity of the synchronous pulley 400 is greater than the linear velocity of the deflector pulley 300.

[0052] When the resistance component 600 uses electromagnetic damping for braking, the greater the edge linear velocity of the synchronous pulley 400, the greater the damping force it experiences; that is, by setting the outer diameter of the synchronous pulley 400 to be larger than the outer diameter of the reversing pulley 300, the sensitivity of the descent control can be improved.

[0053] In addition, the resistance component 600 is connected to the synchronous pulley 400 through the second transmission component. The torque applied by the resistance component 600 to the synchronous pulley 400 is expressed as T2 = F2 * r2. Since the synchronous pulley 400 and the reversing pulley 300 are coaxially connected, the torque on the synchronous pulley 400 and the reversing pulley 300 is the same, that is, T1 = T2. The torque on the reversing pulley 300 is expressed as T1 = F1 * r1.

[0054] Where T1 represents the torque of the directional pulley 300; F1 represents the force on the directional pulley 300; r1 represents the radius of the directional pulley 300; T2 represents the torque of the synchronous pulley 400; F2 represents the force on the synchronous pulley 400; and r2 represents the radius of the synchronous pulley 400.

[0055] Since the outer diameter of the synchronous pulley 400 is larger than the outer diameter of the reversing pulley 300, i.e. r2 > r1, and T1 = T2;

[0056] Therefore, F1 is greater than F2. That is, when the resistance component 600 applies torque to the synchronous pulley 400, by setting the outer diameter of the synchronous pulley 400 to be greater than the outer diameter of the reversing pulley 300, the force on the reversing pulley 300 is greater than the force on the synchronous pulley 400. It should be noted that the force on the reversing pulley 300 is opposite in direction to the force when the first transmission component 200 drives the reversing pulley 300 to rotate, so as to reduce the force when the first transmission component 200 drives the reversing pulley 300 to rotate.

[0057] Based on the above analysis, when the resistance component 600 provides resistance to the rotation of the synchronous pulley 400, by setting the outer diameter of the synchronous pulley 400 to be larger than the outer diameter of the reversing pulley 300, the sensitivity of the descent control can be improved, and the force on the reversing pulley 300 can be significantly increased, thereby slowing down the rotation speed of the reversing pulley 300 and achieving the technical effect of improving the descent efficiency.

[0058] In some embodiments, the descent device further includes a one-way force transmission element, which is disposed between the pivot of the support 100 and the directional wheel 300 and / or the synchronous wheel 400. The one-way force transmission element is used to transmit power to the directional wheel 300 and / or the synchronous wheel 400 only during the return stroke of the trainer at the resistance end. The one-way force transmission element is a one-way bearing.

[0059] Specifically, the unidirectional force transmission component is a unidirectional bearing, which is nested at the hub joint of the bracket 100 shaft and the directional wheel 300, and / or nested at the hub joint of the bracket 100 shaft and the synchronous wheel 400.

[0060] The direction of force transmission of the unidirectional force transmission component corresponds to the direction of rotation of the shaft of the support 100 when the resistance end of the trainer descends and returns. The unidirectional force transmission component is used to transmit power to the directional wheel 300 and / or the synchronous wheel 400 only when the resistance end of the trainer descends and returns.

[0061] When the resistance end of the trainer is in the rising phase for training, the unidirectional force transmission component remains in an idle and separated state. The first transmission component 200 cannot drive the reversing wheel 300 and / or the synchronous wheel 400 to rotate, thus avoiding additional resistance to the user's active lifting action.

[0062] Based on the unidirectional force transmission component located between the rotating shaft of the support 100 and the reversing wheel 300 and / or the synchronous wheel 400, when the resistance end of the trainer is in the descent return phase, the following three power transmission paths will occur:

[0063] When the unidirectional force transmission component is located between the rotating shaft of the support 100 and the directional wheel 300, the resistance end of the trainer drives the directional wheel 300 to rotate through the first transmission component 200. The rotation direction of the rotating shaft of the support 100 relative to the directional wheel 300 triggers the unidirectional force transmission component to work, so that the directional wheel 300 can drive the synchronous wheel 400 to rotate through the rotating shaft of the support 100. The additional resistance on the synchronous wheel 400 slows down the rotation speed of the directional wheel 300 in the opposite direction, thereby achieving the purpose of slow descent.

[0064] When the unidirectional force transmission component is located between the rotating shaft of the support 100 and the synchronous wheel 400, the resistance end of the trainer drives the reversing wheel 300 and the rotating shaft of the support 100 to rotate through the first transmission component 200. The rotation direction of the rotating shaft of the support 100 relative to the synchronous wheel 400 triggers the unidirectional force transmission component to work, so that the reversing wheel 300 can drive the synchronous wheel 400 to rotate through the rotating shaft of the support 100. The additional resistance on the synchronous wheel 400 slows down the rotation speed of the reversing wheel 300 in the opposite direction, thereby achieving the purpose of slow descent.

[0065] When two unidirectional force transmission components are respectively located between the rotating shaft of the support 100 and the synchronous wheel 400 and the reversing wheel 300, the resistance end of the trainer drives the reversing wheel 300 to rotate through the first transmission component 200. The rotation direction of the rotating shaft of the support 100 relative to the reversing wheel 300 triggers one of the unidirectional force transmission components to work, so that the rotating shaft of the support 100 and the reversing wheel 300 rotate synchronously.

[0066] At the same time, the rotation direction of the bracket 100 shaft relative to the synchronous pulley 400 triggers another unidirectional force transmission component to work, so that the bracket 100 shaft rotates synchronously with the synchronous pulley 400; thereby enabling the reversing wheel 300 to drive the synchronous pulley 400 to rotate through the bracket 100 shaft, and the additional resistance on the synchronous pulley 400 slows down the speed of the reversing wheel 300 in the opposite direction, thereby achieving the purpose of slow descent.

[0067] It should be noted that when the two unidirectional force transmission components are respectively located between the rotating shaft of the bracket 100 and the synchronous pulley 400 and the reversing pulley 300, the rotation triggering directions of the two unidirectional force transmission components are the same, so that the two unidirectional force transmission components can rotate at the same time, or can simultaneously transmit the power of the rotating shaft of the bracket 100 to the synchronous pulley 400 and the reversing pulley 300 respectively.

[0068] In some embodiments, the descent device further includes an auxiliary wheel, which is rotatably mounted on the bracket 100 and located on one side of the deflector wheel 300, and a first transmission member 200 is wound around the deflector wheel 300 and the auxiliary wheel.

[0069] Specifically, the auxiliary wheel includes, but is not limited to, sprockets, pulleys and pulleys. The auxiliary wheel is located on one side of the directional wheel 300, and the axis of rotation of the auxiliary wheel is parallel to the axis of rotation of the directional wheel 300.

[0070] The first transmission component 200 is wound around the deflector wheel 300 and the auxiliary wheel. The auxiliary wheel is used to cooperate with the deflector wheel 300 to increase the transmission contact area between the auxiliary wheel and the first transmission component 200, thereby preventing the first transmission component 200 from slipping.

[0071] Furthermore, the directional wheel 300 cooperates with the auxiliary wheel to support the transmission of the first transmission member 200, sharing the radial load applied by the first transmission member 200, and also increasing the included angle at the turning position of the first transmission member 200, thereby reducing fatigue wear on the directional wheel 300, the auxiliary wheel, and the first transmission member 200.

[0072] Reference Appendix Figure 1 In some embodiments, the resistance component 600 of the slow-descent device is located on one side of the synchronous pulley 400. The resistance component 600 is connected to the synchronous pulley 400 through the second transmission member 500. The resistance component 600 is used to provide resistance when the synchronous pulley 400 rotates, so as to slow down the rotational speed of the coaxially rotating deflector wheel 300. The resistance of the resistance component 600 is magnetic reluctance.

[0073] Specifically, the resistance component 600 is located on one side of the synchronous pulley 400 to reduce the rotational speed of the synchronous pulley 400, thereby reducing the rotational speed of the deflector pulley 300. The components in the resistance component 600 used to provide resistance include, but are not limited to, springs, hydraulic cylinders, air cylinders, gas springs, and elastic ropes.

[0074] Preferably, the resistance of the resistance component 600 is magnetic resistance, so as to facilitate precise adjustment of the resistance magnitude and reduce the wear and tear of the components providing resistance, thereby extending their service life.

[0075] Reference Appendix Figure 1 In some embodiments, the resistance assembly 600 includes a magnetic reluctance wheel 601 and a magnetic element 602. The magnetic reluctance wheel 601 is rotatably mounted on the bracket 100. The magnetic reluctance wheel 601 is located on one side of the synchronous wheel 400 and is connected to it through the second transmission element 500. The two magnetic elements 602 are respectively disposed on both sides of the magnetic reluctance wheel 601. The magnetic elements 602 are used to provide magnetic force to the magnetic reluctance wheel 601 to slow down its rotation speed.

[0076] Specifically, the magnetic resistance wheel 601 is a flywheel made of metal, such as copper or aluminum. The magnetic resistance wheel 601 is rotatably located on one side of the synchronous wheel 400. The magnetic resistance wheel 601 is connected to the synchronous wheel 400 through the second transmission component 500. The magnetic resistance wheel 601 is used to transmit rotational resistance to the synchronous wheel 400 through the second transmission component 500.

[0077] The magnetic components 602 include, but are not limited to, permanent magnets and electromagnets. The two magnetic components 602 are respectively disposed on both sides of the magnetic reluctance wheel 601. The magnetic components 602 are used to provide a magnetic field. When the magnetic reluctance wheel 601 rotates in the magnetic field, the magnetic reluctance wheel 601 cuts the magnetic field lines in the magnetic field to generate an induced electromotive force. The direction of the induced current always makes the magnetic field generated by it oppose the change of the original magnetic field, thereby forming the rotational resistance of the magnetic reluctance wheel 601.

[0078] Reference Appendix Figure 1 In some embodiments, the resistance component 600 further includes an adjustment structure for driving the magnetic element 602 to move relative to the magnetic resistance wheel 601, thereby causing the magnetic element 602 to move closer to or away from the magnetic resistance wheel 601. The adjustment structure further includes a mounting base 603 and a third transmission member 604. The mounting base 603 is disposed on the bracket 100, the magnetic resistance wheel 601 is rotatably disposed within the mounting base 603, the magnetic element 602 is fixedly disposed on the mounting base 603, one end of the third transmission member 604 is hinged to the mounting base 603, and the other end is used to grip to drive the mounting base 603 to move relative to the bracket 100, thereby causing the magnetic element 602 to move closer to or away from the magnetic resistance wheel 601.

[0079] Specifically, the mounting base 603 is rotatably mounted on the bracket 100, the magnetic reluctance wheel 601 is rotatably mounted inside the mounting base 603, and the magnetic element 602 is fixed on the mounting base 603 and located on both sides of the magnetic reluctance wheel 601. When the mounting base 603 is pushed or pulled to rotate relative to the bracket 100, the mounting base 603 causes the magnetic element 602 to move closer to or away from the magnetic reluctance wheel 601, thereby increasing or decreasing the resistance experienced by the magnetic reluctance wheel 601.

[0080] One end of the third transmission component 604 is hinged to the mounting base 603. The user can grasp the other end of the third transmission component 604 to drive the mounting base 603 to rotate relative to the bracket 100, thereby causing the magnetic component 602 to move closer to or further away from the magnetic resistance wheel 601. This allows the user to adjust the position of the mounting base 603 and thus change the magnitude of the resistance experienced by the magnetic resistance wheel 601. Specific Implementation Example 2

[0082] This application also provides a trainer equipped with the slow-descent device described in the first embodiment above, to reduce the speed of the trainer's resistance end during the descent return.

[0083] This application provides a slow-descent device and a trainer equipped with it. By setting a synchronous pulley 400 to synchronize the rotation of the deflector wheel 300, and by using a resistance component 600 to influence the rotation speed of the synchronous pulley 400, the rotation speed of the deflector wheel 300 is slowed down. This prevents the resistance end of the trainer from stalling during the descent return, providing slow-descent control for the resistance end, improving the safety of the trainer, reducing environmental noise, and expanding the trainer's application scenarios. A unidirectional force transmission component ensures that the resistance component 600 only provides resistance during the descent return of the resistance end of the trainer, thereby improving the resistance accuracy during training. An auxiliary wheel is used to cooperate with... The reversing wheel 300 increases the transmission contact area with the first transmission component 200, preventing slippage of the first transmission component 200. When the synchronous wheel 400 is coaxially connected with the reversing wheel 300, the outer diameter of the synchronous wheel 400 is set to be larger than that of the reversing wheel 300 to improve the sensitivity of the slow descent control, thereby improving the slow descent efficiency. By setting the resistance source of the resistance component 600 to magnetic reluctance, the accuracy of resistance control is improved. The cooperation between the magnetic reluctance wheel 601 and the magnetic component 602 avoids a large amount of frictional loss, extending the service life of the instrument. An adjustment structure is provided to facilitate the control of the output resistance.

[0084] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0085] The above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of this application, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in this application.

Claims

1. A descent device, characterized in that, The descent device is used to slow down the speed of the resistance end of the trainer during its descent return. The trainer includes a support, a first transmission component, and a reversing wheel. The reversing wheel is rotatably mounted on the support. The first transmission component is wound around the reversing wheel and has one end connected to the resistance end of the trainer, while the other end is used to pull the resistance end of the trainer upward for training. The descent device includes: A timing pulley is rotatably mounted on the bracket, and the timing pulley is connected to the reversing pulley via a transmission. The second transmission component is wound around the synchronous pulley; A resistance assembly is disposed on one side of the synchronous pulley. The resistance assembly is connected to the synchronous pulley through the second transmission member. The resistance assembly is used to provide resistance when the synchronous pulley rotates, so as to slow down the rotational speed of the reversing wheel.

2. The descent device according to claim 1, characterized in that, Also includes: A unidirectional force transmission component is disposed between the rotating shaft of the support and the reversing wheel and / or the synchronous wheel. The unidirectional force transmission component is used to transmit power to the reversing wheel and / or the synchronous wheel only when the resistance end of the trainer is descending back.

3. The descent device according to claim 2, characterized in that, The unidirectional force transmission component is a unidirectional bearing.

4. The descent device according to claim 1, characterized in that, Also includes: An auxiliary wheel is rotatably mounted on the bracket and located on one side of the deflector wheel, and the first transmission member is wound around the deflector wheel and the auxiliary wheel.

5. The descent device according to claim 1, characterized in that, The synchronizing pulley is coaxially connected to the deflecting pulley, and the outer diameter of the synchronizing pulley is larger than the outer diameter of the deflecting pulley.

6. The descent device according to any one of claims 1 to 5, characterized in that, The resistance of the resistance component is derived from magnetic resistance.

7. The descent device according to claim 6, characterized in that, The resistance component includes: A magnetic reluctance wheel is rotatably mounted on the bracket. The magnetic reluctance wheel is located on one side of the synchronous wheel and is connected to it through the second transmission component. The magnetic components are respectively disposed on both sides of the magnetic reluctance wheel, and the magnetic components are used to provide magnetic force to the magnetic reluctance wheel to slow down its rotation speed.

8. The descent device according to claim 7, characterized in that, The resistance component also includes: An adjustment structure is provided to drive the magnetic component to move relative to the reluctance wheel, thereby moving the magnetic component closer to or further away from the reluctance wheel.

9. The descent device according to claim 8, characterized in that, The adjustment structure includes: A mounting base is provided on the bracket, the magnetic reluctance wheel is rotatably disposed within the mounting base, and the magnetic component is fixedly disposed on the mounting base; The third transmission component has one end hinged to the mounting base and the other end used for gripping to drive the mounting base to move relative to the bracket, thereby causing the magnetic component to move closer to or further away from the magnetic resistance wheel.

10. A training device, characterized in that, The device described in any one of claims 1 to 9 is provided to slow down the speed of the resistance end of the trainer during the descent return.

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