Patent Publication Number: US-2023140915-A1

Title: Hydraulic damping device with adjustable resistance and a riding platform

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims priority to Chinese Patent Application No. 202111316012.1, filed on Nov. 8, 2021. The content of all of which is incorporate herein by reference. 
     FIELD OF THE INVENTION 
     The present disclosure relates to the mechanical field, in particular to a hydraulic damping device with adjustable resistance and a riding platform. 
     BACKGROUND 
     Damping device is a device that provides motion resistance and consumes motion capacity. With the development of science and technology, the damping device has been widely used in various fields. For example, it can be used in aviation, aerospace, ships, guns and other devices in military industry, and in civil fields, the damping device can be used in automobile, construction, fitness equipment and other fields. 
     There are three types of damping devices in the prior art, namely, liquid damping device, gas damping device and electromagnetic damping device. The liquid damping device mainly uses the resistance of damping liquid to consume external force, which can provide smooth resistance effect without energy consumption, and provide green and environmental protection. The liquid damping device is increasingly favored by various fields, especially in the field of fitness equipment. However, the disadvantage of the current liquid damping device is that an output resistance is fixed and cannot be adjusted. For example, in current popular riding platform, the liquid damping device is connected with the riding device for users to obtain the resistance through riding, so as to achieve realistic riding effect or training effect. Because the resistance of the liquid damping device is unadjustable, when people ride at the same speed, the resistance obtained is fixed. In this case, the riding platform in the gym is mainly used for people with good physical quality, but for children, the elderly and those with weaker physical quality compared with the middle-aged, the low resistance when riding, the fast and realistic riding feeling are impossible to experience, which makes the experience feels boring. 
     Therefore, the existing technology needs to be improved and developed. 
     BRIEF SUMMARY OF THE DISCLOSURE 
     In view of the shortcomings of the above prior art, the purpose of the present disclosure is to provide a hydraulic damping device with adjustable resistance and a riding platform, and to solve the problem that the resistance of the hydraulic damping device cannot be adjusted in the prior art. 
     The technical scheme of the present disclosure is as follows: 
     A hydraulic damping device with adjustable resistance, includes a support frame, a rotating mechanism movably connected to the support frame, a hydraulic damping mechanism arranged at one end of the rotating mechanism and an inertia wheel detachably connected to another end of the rotating mechanism, wherein the hydraulic damping mechanism includes: 
     a shell; 
     a rotating disc connected with the rotating mechanism extending into the shell, at least one blade is arranged on the rotating disc, and the blade is connected with the rotating disc in an adjustable angle to provide resistance at a corresponding angle. 
     The hydraulic damping device with adjustable resistance further includes: 
     a steering wheel arranged at a position corresponding to the rotating disk in the shell, and a slide path is arranged at a position corresponding to a slide rail of the bladeblade; 
     a steering rod connected with the rotating disc to control the resistance through the steering rod. 
     In the hydraulic damping device with adjustable resistance, the rotating disc is provided with a fan-shaped through hole, and the bladeblade is arranged in the fan-shaped through hole. 
     In the hydraulic damping device with adjustable resistance, the slide path is an arc-shaped through hole and the slide path is a first positioning column. 
     In the hydraulic damping device with adjustable resistance, a cavity is arranged in the rotating mechanism, and the steering rod extends to the other end of the rotating mechanism through the cavity. 
     In the hydraulic damping device with adjustable resistance, a rotating button is also included, the rotating button is connected with the steering rod, a groove is arranged on the inertia wheel corresponding to a position of the rotating button, and the rotating button is clamped in the groove. 
     In the hydraulic damping device with adjustable resistance, a resistance sleeve is detachably connected in the shell, and a resistance rib is arranged on an inner side of the resistance sleeve. 
     In the hydraulic damping device with adjustable resistance, an opening is arranged on one side of the support frame corresponding to the rotating mechanism. 
     The present disclosure also provide a riding platform with the hydraulic damping device with adjustable resistance as described above. 
     Beneficial effects: the present disclosure discloses a liquid damping device with adjustable resistance and a riding platform. The liquid damping device with adjustable resistance comprises a support frame, a rotating mechanism, a liquid damping mechanism and an inertia wheel. The rotating mechanism is movably connected with the support frame, and the liquid damping mechanism is arranged at one end of the connecting mechanism, the inertia wheel is arranged at the other end of the connecting mechanism. The liquid damping mechanism also comprises a shell and a rotating disc, the rotating disc is connected with the rotating mechanism extending into the shell, at least one blade is also arranged on the rotating disc, and the blade is connected with the rotating disc in an adjustable angle to realize that the rotating disc provides resistance for the hydraulic damping mechanism when driving the blade to rotate. The present disclosure adjusts the angle of the blade relative to the rotating disc, so that when the blade rotates with the rotating disc, different from the resistance generated by the damping liquid in the shell, different resistance effects are provided for the liquid damping device. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a structural diagram of a hydraulic damping device with adjustable resistance according to the present disclosure; 
         FIG.  2    is another structural diagram of the hydraulic damping device with adjustable resistance according to the present disclosure; 
         FIG.  3    is a structural diagram of a support frame according to the present disclosure; 
         FIG.  4    is a sectional view of the hydraulic damping device with adjustable resistance according to the present disclosure; 
         FIG.  5    is an exploded view of the hydraulic damping device with adjustable resistance according to the present disclosure; 
         FIG.  6    is a structural diagram of a rotating disc provided with a blade according to the present disclosure; 
         FIG.  7    is a structural diagram of the blade according to the present disclosure; 
         FIG.  8    is a structural diagram of the rotating disc, the steering disc and the steering rod according to the present disclosure; 
         FIG.  9    is a structural diagram of a resistance sleeve of the present disclosure; 
         FIG.  10    is a structural diagram of a riding platform according to an embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF EMBODIMENTS 
     In order to make the purpose, technical scheme and effect of the present disclosure clear and definite, the present disclosure is further described in detail with reference to the attached drawings and embodiments. It should be understood that the embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure. 
     The present disclosure discloses a liquid damping device with adjustable resistance. As shown in  FIG.  1   , the liquid damping device with adjustable resistance includes a support frame  100 , a rotating mechanism  200 , a liquid damping mechanism  400  and an inertia wheel  300 . The rotating mechanism  200  is arranged on the support frame  100 , and both ends of the rotating mechanism  200  are respectively connected with the liquid damping mechanism  400  and the inertia wheel  300 . Thus, a smooth resistance is provided for the hydraulic damping device with adjustable resistance. 
     As shown in  FIGS.  2  and  3   , the support frame  100  includes a loading frame  110  and a positioning frame  120 , the loading frame  110  is configured to load the rotating mechanism  200 . At least one opening  111  is also arranged on one side of the loading frame  110  corresponding to the rotating mechanism  200 , and the opening  111  is used to connect external equipment with the rotating mechanism  200  to obtain the resistance of the hydraulic damping device with adjustable resistance. For example, the loading frame  110  is provided with a first opening and a second opening, and the rotating mechanism  200  is provided with a gear corresponding to a position of the first opening, and an anti-skid lines corresponding to a position of the second opening. When the liquid damping device with adjustable resistance is applied to the fitness equipment such as a rowing machine, the user may obtain resistance by connecting the rotating mechanism  200  with the first opening through a chain. When the liquid damping device with adjustable resistance is applied to the fitness equipment such as a riding platform, the resistance may be obtained by rotating the rotating mechanism  200  through a rotation friction of a rear tire while pressing the rear tire of the bicycle on the rotating mechanism  200  through the second opening. Therefore, a hydraulic damping device with adjustable resistance can be flexibly connected with different types of external equipment through a plurality of openings  111 , to provide a wide range of applications for the hydraulic damping device with adjustable resistance. The opening  111  may also accelerate a heat dissipation speed of the rotating mechanism  200  to a certain extent. For example, when the rotating mechanism  200  rotates at high speed for a long time, a lot of heat is generated. The opening  111  can make the rotating mechanism  200  in continuous direct contact with outside air to cool down when the rotating mechanism  200  rotates. 
     As shown in  FIG.  2   , the positioning frame  120  can be connected with external items. For example, the positioning frame  120  can be connected with the ground and the wall, and the liquid damping device with adjustable resistance can also be connected with equipment of different structures through the positioning frame  120 . For example, the liquid damping device with adjustable resistance can be connected with a frame having adjustable angle, so that the hydraulic damping device with adjustable resistance can be flexibly applied to different sites, such as bedrooms, factories and gyms, and can also be combined with equipment with different structures, such as cars, ships and sports equipment. 
     As shown in  FIGS.  4  and  5   , a hydraulic damping mechanism includes a housing and a rotating disc  410 . The housing may include a first housing  471  and a second housing  472  which are detachably connected with each other to facilitate the user to replace the damping fluid in the housing. The first housing  471  is connected to the loading frame  110 . For example, the first housing  471  is provided with a protrusion towards the loading frame  110 , the protrusion is adapted to an outer edge extending outward at one end of the loading frame  110 , so that the protrusion can be clamped into the outer edge to realize the stable connection between the housing and the loading frame  110 . Fins can be arranged outside the housing to dissipate heat, so that the liquid damping mechanism  400  can quickly cool down. The outside of the housing can also be coated with heat dissipation coating to speed up the heat dissipation. 
     As shown in  FIG.  4   , the rotating disc  410  is connected with the rotating mechanism  200  extending into the housing so that the rotating disc  410  rotates synchronously with the rotating mechanism  200 , therefore the resistance of the rotating disc  410  can be transmitted to the rotating mechanism  200  and then to external equipment through the rotating mechanism  200 . As shown in  FIG.  6    and  FIG.  7   , at least one blade  420  is arranged on the rotating disc  410 . Therefore, when the rotating disc  410  drives the blade  420  to rotate, resistance is generated by disturbing the damping liquid in the housing. The damping liquid can be any substance with approximate flow properties, such as liquid, solid-liquid mixture, particles, etc. The blade  420  is connected with the rotating disc  410  in an adjustable angle. For example, a second socket  421  is arranged on one side of the blade  420 , and a second positioning column  422  is also arranged at the position of the second socket  421  on the blade  420 . The second positioning column  422  may extend into the second socket  421  to connect the blade  420  with the rotating disc  410 , and place the edge of the rotating disc  410  into the second socket  421 . The rotating blade  420  is fixed on the rotating disc  410  at a certain angle by fixing the blade  420  on the rotating disc  410  through the second positioning column  422 . The user can also adjust the angle of the blade  420  relative to the rotating disc  410  according to the actual demand. Then, the blade  420  is fixed on the rotating disc  410  through the second positioning column  422 , so that the blade  420  can be fixed at different angles relative to the rotating disc  410  to produce different resistance effects. It should be noted that the blade  420  can be any shape, for example, the shape of the blade  420  can be rectangular, elliptical, willow leaf and other shapes. 
     As shown in  FIG.  6   , a fan-shaped through hole  411  can be arranged on the rotating disc  410 . The blade  420  is arranged in the fan-shaped through hole  411 , so that the blade  420  rotates in a fixed track. For example, a radian of the fan-shaped through hole  411  is 40 degrees, and a radian scale is arranged at the position of the fan-shaped through hole  411 . The user set the blade  420  to be corresponded to the radian scale at 30 degrees, and to be fixed on the rotating disc  410  with the second positioning column  422 . Therefore, when adjusting the angle of the blade  420 , the blade  420  can move according to the track of the fan-shaped through hole  411  and the angle of the blade  420  is adjusted efficiently and accurately. When the rotating disc  410  rotates, the fan-shaped through hole  411  is used to realize a smooth flow of the damping liquid in the housing, to accelerate the fluidity of the damping liquid and to increase the heat dissipation speed of the damping liquid. 
     As shown in  FIG.  5    and  FIG.  8   , a steering disc  430  is arranged at the position corresponding to the rotating disc  410 , and a slide path  431  is arranged on the steering disc  430 . Therefore, when the steering disc  430  rotates, the blade  420  can be driven to rotate at an angular velocity to the rotating disc  410  through the cooperation of the slide path  431  and the slide rail  424  arranged on the blade  420 . Thus, the magnitude of the interaction force between the damping fluid and the blade  420  can be adjusted. The rotating disc  410  can also drive a plurality of blades  420  to rotate at a uniform angle through rotation, so that the rotating disc  410  receives uniform resistance during rotation. For example, a plurality of fan-shaped through holes  411  are arranged radially on the rotating disc  410 , and the blade  420  is arranged in the fan-shaped through hole  411  and inserted into the edge of the rotating disc  410  through the second socket  421 . The blade  420  penetrates the second socket  421  and the rotating disc  410  through a third through hole arranged on the rotating disc  410  by the second positioning column  422 , so that the blade can rotate freely in the axial direction. A steering disc  430  is also arranged above the rotating disc  410 , a plurality of arc-shaped through holes (slide path  431 ) are arranged at the edge of the steering disc  430 , and a first socket  423  is also arranged on the blade  420 . The first socket  423  is cooperated with the edge of the steering disc  430  and passes through the first socket  423  and the steering disc  430  through the first positioning column (slide rail  424 ). Therefore the blade  420  can move along the track of the arc-shaped through hole (slide path  431 ), so that when the steering disc  430  rotates at a certain angular velocity to the rotating disc  410 , the plurality of blades  420  rotate at a uniform angular velocity to the rotating disc  410 . 
     As shown in  FIG.  8   , the steering wheel  430  is connected with the steering rod  440  so that the user can adjust the angle of the steering wheel  430  relative to the rotating disk  410  by rotating the steering rod  440 , and the angle of the blade  420  relative to the rotating disk  410  can be adjusted to change the resistance between the damping fluid in the housing and the blade  420 . For example, a steering rod  440  is arranged at the center of the steering wheel  430 . When the steering rod  440  is rotated, the steering wheel  430  can rotate synchronously, thereby driving the blade  420  to rotate relative to the rotating disk  410 . 
     As shown in  FIGS.  5  and  9   , an inner side of the housing is also provided with a resistance sleeve  450 . The resistance sleeve  450  is adapted to and detachably connected with the housing. For example, the resistance sleeve  450  is threaded and clamped with the housing, so as to facilitate the user to replace or maintain the resistance sleeve  450 . A resistance rib  451  is arranged in the resistance sleeve  450 . The resistance rib  451  can change the structural characteristics inside the housing and affect a flow mode of the damping liquid by cooperating with the blade  420  to produce different resistance effects. The resistance rib  451  can be a variety of structures, such as wave structure, spiral structure, etc., to produce resistance of different sizes. A composite material sheet or metal sheet with high thermal conductivity can also be arranged in the resistance rib  451  to accelerate the heat emission speed of the damping liquid. 
     As shown in  FIG.  5   , the rotating mechanism  200  is arranged on the support frame  100  to connect the liquid damping mechanism  400  with the inertia wheel  300 , so as to realize a synchronous rotation of the inertia wheel  300  and the rotating disc  410  in the liquid damping mechanism  400  and to provide stable resistance. The rotating mechanism  200  may include a central shaft  210 , a first rolling bearing  211  and a second rolling bearing  212 . For example, the first rolling bearing  211  is arranged at one end of the loading frame  110 , and the second rolling bearing  212  is arranged at the other end of the loading frame  110 . The central shaft  210  is movably connected to the loading frame  110  through the first rolling bearing  211  and the second rolling bearing  212 , so that the central shaft  210  can rotate smoothly. 
     As shown in  FIG.  2    and  FIG.  5   , a sleeve  220  can also be sleeved on an outside of the central shaft  210 . The central shaft  210  is used to connect with external equipment. For example, an anti-skid pattern to increase friction may be arranged on the outside of the sleeve  220 , so that the external equipment can drive the sleeve  220  to rotate to obtain resistance, and to contact the rear tire of the bicycle with the sleeve  220 . By riding the bicycle, the user can drive the sleeve  220  to rotate to produce a training effect and feeling of riding. A gear may be arranged on the outside of the sleeve  220 . For example, the hydraulic damping mechanism with adjustable resistance may also be applied to a direct drive riding platform. The gear outside the sleeve  220  is connected with the riding platform through a chain to realize that the riding platform drives the rotating mechanism  200  to rotate through the chain to obtain resistance. Thus, the liquid damping device with adjustable resistance may be connected with external equipment through a variety of connection modes. The sleeve  220  can also be detachably connected with the shell of the central shaft  210  to facilitate the user to replace the sleeve  220  of different structural types to connect with different types of external equipment. The two ends of the sleeve  220  can also be provided with blades. Therefore, when the sleeve  220  rotates, the blades generate wind due to rotation, which can quickly discharge the heat in the support frame  100  and the rotating mechanism  200  for cooling. At the same time, the external equipment in contact or connected with the sleeve  220  may also be cooled. A hollow structure may be formed between the sleeve  220  and the central shaft  210  to facilitate heat dissipation of the central shaft  210 . 
     As shown in  FIG.  4    and  FIG.  5   , a cavity can also be arranged in the middle shaft  210  so that the steering rod  440  connected with the steering wheel  430  extends to one end of the inertia wheel  300  through the cavity, so that the user can rotate the steering rod  440  outside the hydraulic damping mechanism  400  to control the rotation of the steering wheel  430  relative to the rotating disk  410 , that is, the resistance is controlled by controlling the angle of the blade  420  relative to the rotating disc  410 . The operation method can be to manually rotate the steering rod  440  or connect with an external device to drive the rotating rod  440  to rotate. For example, the steering rod  440  is connected with a motor, which controls the rotation angle of the steering rod  440  to control the rotation of the steering disc  430 . 
     As shown in  FIG.  2    and  FIG.  5   , a rotating button  460  is also arranged at one end of the steering rod  440  extending beyond the hydraulic damping mechanism  400 . The rotating button  460  is connected with the steering rod  440 . By rotating the rotating button  460 , the steering rod  440  can be driven to rotate, which is convenient for the user to adjust the resistance. A groove  310  is arranged on the inertia wheel  300  connected with the rotating mechanism. The rotating button  460  is clamped into the groove  310  and can be rotated relative to the groove  310 . Therefore, the rotating button  460  is connected to the steering rod  440  while clamped into the groove  310 , the steering rod  440  is driven by the rotating button to rotate synchronously with respect to the central shaft  210 , which will not scratch and collide with the cavity due to centripetal force, so as to ensure safety. The outside of the rotating button  460  can be provided with anti-skid lines to increase the friction force when the user rotates the rotating button  460 . The cavity can also help to dissipate the heat in the liquid damping mechanism  400 . 
     As shown in  FIG.  5   , the inertia wheel  300  is detachably connected with the rotating mechanism  200  to facilitate the user to replace the inertia wheel  300  with different masses and provide different inertia forces for the hydraulic damping device with adjustable resistance. Scales, such as angle scale and resistance scale, can also be set around the groove  310  on the inertia wheel  300 , so that the user can obtain the corresponding resistance effect and convenient experience by turning the rotating button  460  to different scales. 
     The present disclosure also discloses a riding platform, as shown in  FIG.  10   . The riding platform includes the above-mentioned liquid damping device with adjustable resistance. The structural features and technical effects are described above, which will not be repeated here. When using the riding platform, the user may fix the liquid damping device with adjustable resistance on the frame  500  through the positioning frame  120 , to keep the hydraulic damping device with adjustable resistance stable. The rear tire  610  of a bicycle  600  is contacted with the rotating mechanism  200  of the hydraulic damping device with adjustable resistance through the opening  111 . When the user rides the bicycle  600 , the rear tire  610  of the bicycle  600  rubs the rotating mechanism  200  to drive the rotating disc  410  provided with the blade  420  to rotate, so as to obtain a smooth resistance effect close to riding. By adjusting the angle of the blade  420  relative to the rotating disc  410 , the user may adjust the rotating button  460  according to his own situation so as to obtain a suitable resistance effect when riding and meet the personalized needs of the user. 
     The hydraulic damping device with adjustable resistance according to the present disclosure is described below with an embodiment. 
     As shown in  FIG.  2   , a hydraulic damping device with adjustable resistance includes a support frame  100 , the support frame  100  includes a positioning frame  120  and a loading frame  110 , the loading frame  110  has a tubular structure, and the outer edge extending outward at one end of the loading frame  110  is adapted to a protrusion arranged on the housing of the hydraulic damping mechanism  400 , so that the positioning frame  120  is firmly connected with the housing. The rotating mechanism  200  includes a central shaft  210 , a first rolling bearing  211  and a second rolling bearing  212 . The central shaft  210  is movably connected to the loading frame  110  through the first rolling bearing  211  and the second rolling bearing  212 , so that the central shaft  210  can rotate with low friction. The outer side of the central shaft  210  is provided with a sleeve  220 , and the sleeve  220  is provided with anti-skid lines to contact the rear tire  610  of bicycle and increase the stability of friction between the rear tire  610  of bicycle and the sleeve  220 . 
     As shown in  FIG.  6   , a rotating disc  410  is arranged in the housing, and the rotating disc  410  is connected with the central shaft  210 . Therefore, when the central shaft  210  is driven by external equipment, the rotating disc  410  can rotate synchronously with the central shaft  210 . A plurality of fan-shaped through holes  411  are arranged radially on the rotating disc  410 , and each fan-shaped through hole  411  is provided with a blade  420 . One end of the blade  420  is provided with a second socket  421 . The blade  420  is inserted into the edge of the rotating disc  410  through the second socket  421 , and then movably connected with the rotating disc  410  through a second positioning column  422  arranged on the blade  420 . Therefore the blade  420  can rotate freely in the fan-shaped through hole  411 . 
     As shown in  FIG.  6    and  FIG.  8   , a steering disc  430  is arranged above the rotating disc  410 , and an arc-shaped through hole (slide path  431 ) is arranged on the steering disc  430  corresponding to the blade  420 . The blade  420  is inserted into the edge of the steering disc  430  through a first socket  423  and into the arc-shaped through hole (slide path  431 ) through a first positioning column (slide rail  424 ). When the steering disc  430  rotates relative to the rotating disc  410 , a plurality of blades  420  can be driven to rotate at the same angular velocity to the rotating disc  410 . A resistance sleeve  450  is also clamped on the inner side of the housing, and a strip resistance rib  451  is arranged in the resistance sleeve to cooperate with the blade  420  to interact with the damping liquid in the housing to generate resistance. 
     As shown in  FIG.  8   , a steering rod  440  is connected with the steering wheel  430  through bolts and extends out of the hydraulic damping mechanism  400  through a cavity arranged in the central shaft  210 . A rotating button  460  is also arranged at the end of the steering rod  440  extending out of the central shaft  210 , which is used to rotate the steering rod  440  to control the resistance. When the inertia wheel  300  rotates synchronously with the rotating disc  410 , the rotating button  460  is placed in the groove  310  arranged on the inertia wheel  300 , so as to ensure that the steering rod  440  rotates synchronously with respect to the central shaft  210  when the rotating disc  410  rotates, that is, the blade  420  remains at a fixed angle with respect to the rotating disc  410  to ensure that the resistance remains unchanged. When the user needs to adjust the resistance, the user adjusts the angle of the blade  420  relative to the rotating disc  410  to adjust the resistance by rotating the rotating button  460 . 
     To sum up, the present disclosure discloses a liquid damping device with adjustable resistance, including a support frame  100 , a rotating mechanism  200 , a liquid damping mechanism  400  and an inertia wheel  300 . The rotating mechanism  200  is arranged on the support frame  100 , and the liquid damping mechanism  400  and the inertia wheel  300  are respectively arranged at both ends of the rotating mechanism  200 . The rotating mechanism  200  includes a central shaft  210 , a first rolling bearing  211  and a second rolling bearing  212 . The central shaft  210  is movably connected to the support frame  100  through the first rolling bearing  211  and the second rolling bearing  212 . Therefore, the central shaft  210  can rotate stably. The central shaft  210  is provided with a cavity to speed up the discharge of heat in the liquid damping mechanism  400  and the rotating mechanism  200 . The outer side of the central shaft  210  can be provided with a sleeve  220  used to connect with external equipment to realize the connection of the hydraulic damping device with adjustable resistance with various types of external equipment. The hydraulic damping mechanism  400  includes a housing and a rotating disc  410 . The rotating disc  410  is provided with a blade  420 , and the angle of the blade  420  relative to the rotating disc  410  can be adjusted. Therefore, during the rotation of the rotating disc  410 , the damping fluid in the housing provides different resistance to the blade  420  with different angles relative to the rotating disc  410 . A plurality of fan-shaped through holes  411  are arranged on the rotating disc  410  so that the blade  420  can rotate along the fan-shaped through hole  411  in a fixed track. The hydraulic damping mechanism  400  also includes a steering disc  430 , which is arranged at a corresponding position of the rotating disc  410 . a slide path  431  is arranged on the steering disc  430 , and the slide path  431  is adapted to the slide rail  424  arranged on the blade  420 . Therefore, when one end of the blade  420  is movably connected with the rotating disc  410 , and the steering disc  430  rotates relative to the rotating disc  410 , the plurality of blades  420  can rotate at a certain angular velocity through the cooperation between the slide path  431  and the slide rail  424 , so as to control the resistance between the rotating disc  410  and the damping liquid. A steering rod  440  is arranged on the steering wheel  430 . The steering rod  440  can control the rotation of the steering wheel  430 , so as to drive a plurality of blades  420  to rotate at a uniform angular velocity, so that the rotating disk  410  is subject to uniform and smooth resistance. The steering rod  440  may extend to one side of the inertia wheel  300  through the cavity arranged in the central shaft  210 , for the user to control the angle of the blade  420  relative to the rotating disc  410  from the outside of the hydraulic damping mechanism  400 . One end of the steering rod  440  toward the inertia wheel  300  is also provided with a rotating button  460 . When the rotating disc  410  rotates, the rotating button  460  may be fixed on the inertia wheel  300  to ensure that the rotating button  460  rotates synchronously with the inertia wheel  300 , that is, to ensure that the angle of the steering disc  430  relative to the rotating disc  410  is fixed. A groove  310  is arranged on the inertia wheel  300  to hold the rotating button  460  to ensure that when the rotating button  460  rotates synchronously with the inertia wheel  300 , the rotating button  460  is not contacted by external items, thus the safe operation of the hydraulic damping device with adjustable resistance is assured. 
     It should be understood that the application of the present disclosure is not limited to the above embodiments. For those skilled in the art, it can be improved or transformed according to the above description. All these improvements and transformations should belong to the protection scope of the appended claims of the present disclosure.