A kind of rotary control clutch and rope pulling fitness training device

Abstract

The present invention discloses a screw-on control clutch and a rope-pulling fitness training device; the device comprises a first half clutch, a second half clutch, a matching fixed ring and a screw-on ring sleeved on the outer side of the second half clutch, which are arranged in sequence; the first half clutch and the second half clutch are respectively provided with a first clamping part and a second clamping part which are corresponding and detachably connected; the screw-on ring is provided with a sliding protrusion which faces away from the first half clutch, and a matching groove which corresponds to the sliding protrusion is provided on a side of the matching fixed ring facing the screw-on ring, and the sliding protrusion is inserted into or slides out of the matching groove when the screw-on ring rotates; a guiding part for guiding the screw-on ring to rotate is provided on the screw-on ring; the present invention can realize that the direction of clutch opening and closing is perpendicular to the direction of power source input; the clutch opening and closing process is stable and reliable, not easy to get stuck, and has low rigidity requirements for components; the structure is simple, and the cost is more saved.

Description

Technical Field

[0001] The invention relates to the technical field of fitness equipment, in particular to a screw-on control clutch and a pull-rope fitness training device. Background Art

[0002] With the improvement of living standards and people's increasing awareness of their own health, more and more people are starting to do strength training. Strength training can exercise the body, strengthen human muscles, and improve human metabolism. However, due to the size and weight of traditional fitness equipment, it is difficult for people to do corresponding strength training at home. They can only go to the gym or other places for related training, which greatly restricts the feasibility of training.

[0003] In order to limit the volume of the fitness equipment, it may be necessary to make the opening and closing direction of the clutch perpendicular to the direction of the power source input, but the existing clutch cannot do this. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a rotary control clutch and a rope pulling fitness training device, which can make the opening and closing direction of the clutch perpendicular to the direction of power source input.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A screw-on control clutch, comprising a first half clutch, a second half clutch, a matching fixed ring and a screw-on ring sleeved on the outer side of the second half clutch;

[0007] The first half clutch is provided with a first clamping member, the second half clutch is provided with a second clamping member corresponding to the first clamping member, and the first clamping member and the second clamping member are detachably connected;

[0008] The screw-on ring is provided with a sliding protrusion facing away from the first half clutch, and the mating fixing ring is provided with a mating groove corresponding to the sliding protrusion on one side facing the screw-on ring, and the sliding protrusion is inserted into or slides out of the mating groove when the screw-on ring rotates;

[0009] The screw-on ring is provided with a guide portion for guiding the screw-on ring to rotate.

[0010] In order to solve the above technical problems, another technical solution adopted by the present invention is:

[0011] A rope-pulling fitness training device comprises a resistance component, a first clutch and a spool which are arranged in sequence, wherein the first clutch is a screw-on control clutch as mentioned above, the resistance component is fixedly connected to the first half clutch, the spool is fixedly connected to the second half clutch, and the resistance component is used to provide a preset resistance to the rotation of the spool when the first clutch is in a closed state.

[0012] The beneficial effects of the present invention are as follows: the present invention realizes that when the screw-on ring rotates, the screw-on ring is pushed to move in the clutch opening and closing direction to control the opening and closing of the clutch, and the direction of clutch opening and closing can be made perpendicular to the direction of power source input; the clutch opening and closing process is smooth and reliable, not easy to get stuck, and has low rigidity requirements for components; and the structure is simple, which is more cost-effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural explosion diagram of a screw-on control clutch according to an embodiment of the present invention;

[0014] Figure 2 It is a schematic diagram of the overall structure of a rope-pulling fitness training device according to an embodiment of the present invention;

[0015] Figure 3 It is a partial structural schematic diagram of a rope-pulling fitness training device according to an embodiment of the present invention;

[0016] Figure 4 It is a structural schematic diagram of a clutch driving device and a second clutch of a rope pulling fitness training device according to an embodiment of the present invention;

[0017] Figure 5 It is a structural explosion diagram of a clutch driving device and a second clutch of a rope-pulling fitness training device according to an embodiment of the present invention;

[0018] Description of labels:

[0019] 1. Housing; 2. Clutch control assembly; 3. First clutch; 4. Speed ​​measuring assembly; 5. Force measuring assembly; 6. Brake assembly; 7. Spool; 8. Second clutch; 9. Resistance motor; 10. First transmission gear; 11. Second transmission gear; 12. First half clutch; 13. Gear ring; 14. Protruding ring; 15. Screw-on ring; 16. Matching fixing ring; 17. Second transmission protrusion; 18. Second transmission hole; 19. First transmission protrusion; 20. First transmission hole; 21. Matching teeth; 22. Sliding protrusion; 23. Fixing piece; 24. Fourth transmission protrusion; 25. Fourth transmission hole; 26. Matching groove; 27, third half clutch; 28, fourth half clutch; 29, shift fork; 30, first fixed rod; 31, second fixed rod; 32, third transmission gear; 33, fourth transmission gear; 34, slide groove; 35, half clutch through hole; 36, fixed rod through hole; 37, elastic member; 38, flange; 39, drive motor; 40, motor bracket; 41, rack connector; 42, motor transmission gear; 43, matching protrusion; 44, double-sided rack; 45, strip through hole; 46, single-sided rack; 47, fifth transmission gear; 48, third transmission hole; 49, third transmission protrusion. DETAILED DESCRIPTION

[0020] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0021] Please refer to Figure 1 , a screw-on control clutch, comprising a first half clutch, a second half clutch, a matching fixed ring and a screw-on ring sleeved on the outer side of the second half clutch;

[0022] The first half clutch is provided with a first clamping member, the second half clutch is provided with a second clamping member corresponding to the first clamping member, and the first clamping member and the second clamping member are detachably connected;

[0023] The screw-on ring is provided with a sliding protrusion facing away from the first half clutch, and the mating fixing ring is provided with a mating groove corresponding to the sliding protrusion on one side facing the screw-on ring, and the sliding protrusion is inserted into or slides out of the mating groove when the screw-on ring rotates;

[0024] The screw-on ring is provided with a guide portion for guiding the screw-on ring to rotate.

[0025] From the above description, it can be seen that the beneficial effects of the present invention are: the present invention realizes that when the screw-in ring rotates, the screw-in ring is pushed to move in the clutch opening and closing direction through the sliding protrusion and the matching groove, thereby controlling the opening and closing of the clutch, and can realize that the direction of clutch opening and closing is perpendicular to the direction of power source input; the clutch opening and closing process is smooth and reliable, not easy to get stuck, and has low rigidity requirements for components; and the structure is simple, which is more cost-effective.

[0026] Further, the second half clutch comprises a gear ring and a convex ring on a side of the gear ring away from the first half clutch;

[0027] The gear ring is provided with a first transmission hole and a second clamping piece is provided on a side facing the first half clutch, the convex ring is provided with a first transmission protrusion facing the gear ring, and the first transmission protrusion is clamped with the first transmission hole;

[0028] The screw-on ring is sleeved on the outer side of the convex ring.

[0029] From the above description, it can be seen that the second half-clutch includes a gear ring and a convex ring. When the clutch is closed, the transmission between the first half-clutch and the second half-clutch is achieved through the second clamping piece on the gear ring, and the transmission between the gear ring and the convex ring is achieved through the first transmission protrusion and the first transmission hole.

[0030] Further, the first clamping member is a second transmission hole evenly arranged around the annular edge of the first half clutch, and the second clamping member is a second transmission protrusion arranged corresponding to the second transmission hole;

[0031] The second transmission hole is detachably connected to the second transmission protrusion.

[0032] It can be seen from the above description that the first clamping member is the second transmission hole, and the second clamping member is the second transmission protrusion. When the clutch is closed, transmission is achieved through the connection between the second transmission protrusion and the second transmission hole.

[0033] Please refer to Figures 2 to 5 A rope-pulling fitness training device comprises a resistance component, a first clutch and a spool arranged in sequence, wherein the first clutch is a screw-on control clutch as mentioned above, the resistance component is fixedly connected to the first half clutch, the spool is fixedly connected to the second half clutch, and the resistance component is used to provide a preset resistance to the rotation of the spool when the first clutch is in a closed state.

[0034] From the above description, it can be seen that the beneficial effects of the present invention are: the present invention realizes that when the screw-in ring rotates, the screw-in ring is pushed to move in the clutch opening and closing direction through the sliding protrusion and the matching groove, thereby controlling the opening and closing of the clutch, and can realize that the direction of clutch opening and closing is perpendicular to the direction of power source input; the clutch opening and closing process is smooth and reliable, not easy to get stuck, and has low rigidity requirements for components; and the structure is simple, which is more cost-effective.

[0035] Further, the first half clutch is provided with a third transmission hole, and the second half clutch is provided with a fourth transmission hole;

[0036] The resistance component is provided with a third transmission protrusion corresponding to the third transmission hole at one end close to the first half clutch, and the third transmission hole is fixedly connected to the third transmission protrusion;

[0037] A fourth transmission protrusion corresponding to the fourth transmission hole is provided at one end of the spool close to the second half clutch, and the fourth transmission hole is fixedly connected to the fourth transmission protrusion.

[0038] From the above description, it can be seen that a third transmission hole is provided on the first half clutch, and a third transmission protrusion corresponding to the third transmission hole is provided on the resistance assembly, thereby realizing the transmission connection between the resistance assembly and the first half clutch; a fourth transmission hole is provided on the second half clutch, and a fourth transmission protrusion is provided on one end of the spool close to the second half clutch, thereby realizing the transmission connection between the spool and the second half clutch; when the clutch is closed, the transmission between the resistance assembly and the spool can be realized.

[0039] Furthermore, it also includes a clutch control assembly, a second clutch, and a housing mounted outside all the components, the spool is rotatably disposed in the housing, and the number of the resistance assembly, the spool, and the first clutch is at least two;

[0040] The second clutch is connected to all the resistance components at the same time. When the second clutch is in a closed state, at least two of the resistance components are connected in transmission. When the second clutch is in a disengaged state, the transmission connection between at least two of the resistance components is disconnected.

[0041] The clutch control assembly is connected to the second clutch and the first clutch respectively to synchronously control the separation or closing of the first clutch and the second clutch;

[0042] Each of the spools is respectively connected and wound with a draw rope, and each of the draw ropes extends out of the box shell through a through hole on the box shell.

[0043] From the above description, it can be seen that the present invention is provided with a first clutch and a second clutch, and the number of resistance components, spools and first clutches is at least two, and the second clutch is connected to all the resistance components at the same time. When the second clutch is separated, the user enters the refined training of both hands. When the second clutch is closed and only one of the first clutches is closed, the clutches are used to make multiple motors transmit power to a spool, thereby realizing high-strength training of the left or right hand. That is, the present invention provides multiple modes of strength training, which can adapt to the different training needs of users and improve the user experience.

[0044] Furthermore, the resistance assembly includes a resistance motor and a transmission assembly, and the transmission assembly includes a first transmission gear and a second transmission gear that are meshed and connected, the first transmission gear is connected to the resistance motor, and the second transmission gear is connected to the first half-clutch.

[0045] From the above description, it can be seen that the resistance assembly includes a resistance motor and two transmission gears. The resistance motor generates power and transmits the power to the spool through the transmission gears, thereby causing resistance to the user pulling the pull rope.

[0046] Further, the clutch control assembly includes a driving motor, a motor bracket, a rack connector, a double-sided rack, a single-sided rack, a fifth transmission gear and a motor transmission gear, and the guide portion is a matching tooth arranged on the outside of the screw-on ring;

[0047] The drive motor is fixedly connected to the housing box through the motor bracket, the drive motor is connected to a motor transmission gear, the motor transmission gear is meshed with the upper rack of the double-sided rack, and the double-sided rack is connected to the single-sided rack through a rack connector;

[0048] The lower parts of the single-sided rack and the double-sided rack are respectively meshed with a fifth transmission tooth, and the two fifth transmission teeth are respectively meshed with a matching tooth of the screw-on ring.

[0049] From the above description, it can be seen that by driving the motor to rotate the motor transmission gear, the rack is driven to move, and then the rack drives the fifth transmission gear to rotate. The fifth transmission gear cooperates with the matching teeth on the outside of the screwing ring to drive the screwing ring to rotate, thereby realizing the opening and closing control of the first clutch.

[0050] Furthermore, it also includes a speed measuring component, a force measuring component and a brake component;

[0051] The two resistance components are respectively connected to one speed measuring component, the brake component is connected to the spool, and the two pull ropes are respectively wound around one force measuring component in the box shell and then extend out of the box shell through the through hole on the box shell.

[0052] From the above description, it can be seen that it also includes a speed measuring component, a force measuring component and a brake component. The speed measuring component can measure the rotation speed of the spool through the speed measuring component, and the force measuring component can effectively measure the tension of the pull rope. When the pull rope on either side stops being used, the brake assembly can be used to brake the response spool, which can effectively improve the user experience while playing a certain protective role.

[0053] Furthermore, the brake assembly is an electromagnet brake or a latch brake, and the speed measuring assembly is a grating encoding speed measuring assembly or a magnetic encoding speed measuring assembly.

[0054] From the above description, it can be seen that the speed measuring component is a grating encoding speed measuring component or a magnetic encoding speed measuring component, which can detect the rotation speed of the spool through a grating encoder or a magnetic encoder, thereby obtaining the linear speed of the pull rope; the brake component is an electromagnet brake or a latch brake, both of which can realize the braking action of the spool.

[0055] Please refer to Figure 1 , Embodiment 1 of the present invention is:

[0056] A rotary control clutch, such as Figure 1 As shown, it includes a first half clutch 12, a second half clutch, a matching fixing ring 16 and a screw-on ring 15 sleeved on the outside of the second half clutch, which are arranged in sequence;

[0057] In this embodiment, the second half clutch includes a gear ring 13 and a convex ring 14 on the side of the gear ring 13 away from the first half clutch 12, the screw-on ring 15 is sleeved on the outer side of the convex ring 14, the gear ring 13 is provided with a first transmission hole 20 and a second clamping piece is provided on the side facing the first half clutch 12, the convex ring 14 is provided with a first transmission protrusion 19 facing the gear ring 13, and the first transmission protrusion 19 is clamped with the first transmission hole 20.

[0058] In this embodiment, the first clamping member is a second transmission hole 18 evenly arranged around the annular edge of the first half clutch 12, and the second clamping member is a second transmission protrusion 17 arranged corresponding to the second transmission hole 18; in other equivalent embodiments, the first clamping member and the second clamping member can be any detachable connection parts that can drive the other party to rotate coaxially.

[0059] like Figure 1 As shown, the screw-on ring 15 is provided with a sliding protrusion 22 facing away from the first half clutch 12, and the mating fixing ring 16 is provided with a mating groove 26 corresponding to the sliding protrusion 22 on one side facing the screw-on ring 15. The sliding protrusion 22 is inserted into or slides out of the mating groove 26 when the screw-on ring 15 rotates.

[0060] Among them, a guiding part for guiding the rotation of the screw-on ring 15 is provided on the screw-on ring 15. In this embodiment, the guiding part is a matching tooth 21. In other equivalent embodiments, the guiding part can be set according to the actual usage scenario and is a fixed component that can drive the screw-on ring 15 to rotate.

[0061] In this embodiment, fixing members 23 are uniformly arranged around the outer side of the fixing ring 16 .

[0062] Please refer to Figures 1 to 3 , Embodiment 2 of the present invention is:

[0063] A rope-pulling fitness training device, such as Figure 2 and Figure 3As shown, it includes a resistance component, a first clutch 3 and a spool 7 which are arranged in sequence. The first clutch 3 is a screw-on control clutch of the above-mentioned embodiment 1. The resistance component is fixedly connected to the first half clutch 12, and the spool 7 is fixedly connected to the second half clutch. The resistance component is used to provide a preset resistance to the rotation of the spool 7 when the first clutch 3 is in a closed state.

[0064] In this embodiment, the resistance assembly includes a resistance motor 9 and a transmission assembly, and the transmission assembly includes a first transmission gear 10 and a second transmission gear 11 that are meshed and connected. The first transmission gear 10 is connected to the resistance motor 9, and the second transmission gear 11 is connected to the first half clutch 12.

[0065] Please refer to Figure 1 and Figure 3 , Embodiment 3 of the present invention is:

[0066] A rope-pulling fitness training device is different from the second embodiment in that a third transmission hole 48 is provided on the first half clutch 12, and a fourth transmission hole 25 is provided on the second half clutch.

[0067] Among them, a third transmission protrusion 49 corresponding to the third transmission hole 48 is provided at one end of the resistance assembly close to the first half clutch 12. In this embodiment, the third transmission protrusion 49 is arranged on a side of the second transmission gear 11 close to the first half clutch 12, and the third transmission hole 48 is fixedly connected to the third transmission protrusion 49.

[0068] Among them, a fourth transmission protrusion 24 corresponding to the fourth transmission hole 25 is provided at one end of the spool 7 close to the second half clutch, and the fourth transmission hole 25 is fixedly connected to the fourth transmission protrusion 24.

[0069] Please refer to Figures 2 to 5 , Embodiment 4 of the present invention is:

[0070] A rope-pulling fitness training device, which is different from the third embodiment in that Figure 2 As shown, it also includes a clutch control component 2, a second clutch 8, and a box shell 1 that is mounted outside all the components. The spool 7 is rotatably arranged in the box shell 1, and the number of resistance components, spools 7 and first clutches 3 is at least two; in this embodiment, the number of resistance components, spools 7 and first clutches 3 is two, and in other equivalent embodiments, the number of resistance components, spools 7 and first clutches 3 can be increased to three or more according to training needs.

[0071] The second clutch 8 is connected to all resistance components at the same time. When the second clutch 8 is in a closed state, at least two of the resistance components are connected in transmission. When the second clutch 8 is in a disengaged state, the transmission connection between at least two of the resistance components is disconnected.

[0072] In this embodiment, Figure 4 and Figure 5 As shown, the second clutch 8 includes a third half clutch 27, a fourth half clutch 28, a shift fork 29, a first fixed rod 30, a second fixed rod 31, a third transmission gear 32 and a fourth transmission gear 33; one end of the first fixed rod 30 is connected to the third transmission gear 32, and the other end is rotatably connected to the fourth transmission gear 33, a slide groove 34 is provided on the first fixed rod 30 on a side close to the third transmission gear 32, the third half clutch 27 is sleeved on the first fixed rod 30 and is slidably connected to the slide groove 34, the fourth half clutch 28 is connected to the fourth transmission gear 33 and sleeved on the first fixed rod 30 on a side close to the fourth transmission gear 33; the second fixed rod 31 is fixedly connected to the housing 1, and the shift fork 29 is provided with a half clutch through hole 35 and a fixed The third half clutch 27 is located in the half clutch through hole 35. An elastic member 37 is sleeved on the side of the first fixed rod 30 where the slide groove 34 is located, and is abutted and connected between the third transmission gear 32 and the third half clutch 27. A flange 38 is arranged around the side of the third half clutch 27 facing the third transmission gear 32. The fork 29 is abutted and connected with the side of the flange 38 away from the third transmission gear 32. The second fixed rod 31 can slidably pass through the fixed rod through hole 36. The sliding direction of the fork 29 on the second fixed rod 31 is consistent with the sliding direction of the third half clutch 27 on the slide groove 34. The third transmission gear 32 and the fourth transmission gear 33 are respectively meshed and connected with a second transmission gear 11, and the clutch control assembly 2 is connected with the fork 29.

[0073] Therefore, if Figure 5 As shown, the first half clutch 12 and the second half clutch are detachably connected by the engagement of the protrusion and the groove, but it is not limited to Figure 5 The structure in the embodiment only needs two matching components that can be plugged in and out in the sliding direction.

[0074] like Figure 4 and Figure 5As shown, the clutch control assembly 2 includes a drive motor 39, a motor bracket 40, a single-sided rack 46, a rack connector 41, a double-sided rack 44, a fifth transmission gear 47 and a motor transmission gear 42, and a matching protrusion 43 is also provided on the shift fork 29; the drive motor 39 is fixedly connected to the housing 1 through the motor bracket 40, the drive motor 39 is connected to the motor transmission gear 42, the motor transmission gear 42 is meshed with the double-sided rack 44, the double-sided rack 44 is connected to one end of the rack connector 41, and the other end of the rack connector 41 is connected to the single-sided rack 46; the rack connector 41 is provided with a strip-shaped through hole 45 corresponding to the matching protrusion 43, and the matching protrusion 43 It is located in the strip-shaped through hole 45, and the middle position of the strip-shaped through hole 45 is bent away from the fourth half clutch 28; the third half clutch 27 is in a separated state with the fourth half clutch 28 when the matching protrusion 43 of the shift fork 29 is located in the middle position of the strip-shaped through hole 45, and is in a closed state with the fourth half clutch 28 when the matching protrusion 43 of the shift fork 29 is located on both sides of the strip-shaped through hole 45; the other side of the double-sided rack 44 connected to the motor transmission gear 42 and the single-sided rack 46 are respectively meshed with a fifth transmission gear 47, and the two fifth transmission gears 47 are respectively meshed with the matching teeth 21 on the screw-on ring 15 of the first clutch 3.

[0075] Therefore, in this embodiment, the switching process between the disengaged state and the closed state of the first clutch 3 and the second clutch 8 is realized by the clutch control component 2 as follows:

[0076] The driving motor 39 controls the motor transmission gear 42 to rotate, thereby controlling the double-sided rack 44 to move, and the rack connector 41 and the single-sided rack 46 move accordingly. During the movement, the single-sided rack 46 and the double-sided rack 44 drive the fifth transmission gear 47 to rotate, and the fifth transmission gear 47 is meshed and connected with the matching teeth 21 on the screw-on ring 15 of the first clutch 3, thereby driving the screw-on ring 15 to rotate. When the screw-on ring 15 rotates, the sliding protrusion 22 and the matching groove 26 push the protruding ring 14 and the gear ring 13 to move toward the first half clutch 12, or away from the first half clutch 12. When the second transmission protrusion 17 of the gear ring 13 is inserted into the second transmission hole 18, the first clutch 3 is in a closed state, otherwise it is in a separated state.

[0077] At the same time, the sliding protrusion 22 of the shift fork 29 is located in the strip-shaped through hole 45 of the rack connecting member 41. Due to the movement of the rack connecting member 41, the position of the sliding protrusion 22 of the shift fork 29 in the strip-shaped through hole 45 also changes, thereby driving the shift fork 29 to slide along the second fixed rod 31. The movement of the shift fork 29 drives the third half clutch 27 to move toward the third transmission gear 32 until the third half clutch 27 disengages from the fourth half clutch 28, so that the second clutch 8 is in a disengaged state. At this time, the third half clutch 27 compresses the elastic member 37.

[0078] The clutch control assembly 2 controls the shift fork 29 to move along the second fixed rod 31, and the shift fork 29 moves toward the fourth half clutch 28. The compressed elastic member 37 rebounds to make the third half clutch 27 move toward the fourth half clutch 28 until the third half clutch 27 is plugged into the fourth half clutch 28, so that the second clutch 8 is in a closed state.

[0079] What is not shown in the figure is that each spool 7 is connected and wound with a draw rope, each draw rope extends out of the box shell 1 through a through hole on the box shell 1, and is connected to a handle at one end extending out of the box shell 1.

[0080] The overall working principle of a rope-pulling fitness training device of this embodiment is as follows: the user controls the clutch control component 2 according to the training needs, specifically controlling two of the two first clutches 3 and one second clutch 8 to be in a closed state and one to be in a disconnected state. When the two first clutches 3 are in a closed state, the fine control of both hands is realized, and the user pulls the two ropes for training. When one of the first clutches 3 is in a separated state and the second clutch 8 is in a closed state, the resistance motor 9 on the separated side of the first clutch 3 is connected to the spool 7 on the other side through the second clutch 8, that is, the spool 7 on the other side is connected to the two resistance motors 9, so as to realize the high-strength training of one hand.

[0081] Please refer to Figure 2 , Embodiment 5 of the present invention is:

[0082] A rope-pulling fitness training device, which differs from the fourth embodiment in that it further includes a speed measuring component 4, a force measuring component 5 and a brake component 6, such as Figure 1 As shown, two speed measuring components 4 are connected to a resistance component respectively, and the brake component 6 is connected to the spool 7;

[0083] What is not shown in the figure is that the force measuring component 5 is connected with the pull rope, and the pull rope is connected with the force measuring component 5 and then extends out of the box shell 1.

[0084] In this embodiment, the brake assembly 6 is an electromagnetic brake, and the speed measuring assembly 4 is a grating encoding speed measuring assembly. In other equivalent embodiments, the brake assembly 6 can also be a latch-type brake, and the speed measuring assembly 4 can also be a magnetic encoding speed measuring assembly.

[0085] In summary, the present invention provides a kind of rotary control clutch and rope pulling fitness training device. The present invention realizes that when the rotary ring rotates, the rotary ring is pushed to move in the clutch opening and closing direction to control the opening and closing of the clutch through the sliding protrusion and the matching groove, so as to realize that the direction of clutch opening and closing is perpendicular to the direction of power source input; the clutch opening and closing process is stable and reliable, not easy to get stuck, and the rigidity requirements of parts are low; and the structure is simple and cost-saving; the rope pulling fitness training device is provided with a second clutch, multiple groups of first clutches, a bobbin and a resistance member. When the first clutch is closed, the user enters the fine training of both hands. When the second clutch is closed and only one of the first clutches is closed, the clutch is used to make multiple motors drive to a bobbin, thereby realizing the high strength training of the left hand or the right hand, that is, the present invention provides multiple modes of strength training, which can adapt to the different training needs of users and improve the user experience, and is provided with a speed measuring component and a force measuring component, which can measure the rotation speed of the measuring bobbin and the tension on the rope, and is provided with a brake component, which can brake the bobbin, which can effectively improve the user experience and play a certain protective role.

[0086] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rotary control clutch, characterized in that: It comprises a first half clutch, a second half clutch, a matching fixing ring and a screw-on ring sleeved on the outer side of the second half clutch; The first half clutch is provided with a first clamping member, the second half clutch is provided with a second clamping member corresponding to the first clamping member, and the first clamping member and the second clamping member are detachably connected; The screw-on ring is provided with a sliding protrusion facing away from the first half clutch, and the mating fixing ring is provided with a mating groove corresponding to the sliding protrusion on one side facing the screw-on ring, and the sliding protrusion is inserted into or slides out of the mating groove when the screw-on ring rotates; The screw-on ring is provided with a guide portion for guiding the screw-on ring to rotate.

2. A screw-on control clutch according to claim 1, characterized in that: The second half clutch comprises a gear ring and a protruding ring on a side of the gear ring away from the first half clutch; The gear ring is provided with a first transmission hole and a second clamping piece is provided on a side facing the first half clutch, the convex ring is provided with a first transmission protrusion facing the gear ring, and the first transmission protrusion is clamped with the first transmission hole; The screw-on ring is sleeved on the outer side of the convex ring.

3. A screw-on control clutch according to claim 1, characterized in that: The first clamping member is a second transmission hole evenly arranged around the annular edge of the first half clutch, and the second clamping member is a second transmission protrusion arranged corresponding to the second transmission hole; The second transmission hole is detachably connected to the second transmission protrusion.

4. A rope-pulling fitness training device, characterized in that: It includes a resistance component, a first clutch and a spool which are arranged in sequence, the first clutch is a screw-on control clutch as described in any one of claims 1 to 3, the resistance component is fixedly connected to the first half clutch, the spool is fixedly connected to the second half clutch, and the resistance component is used to provide a preset resistance to the rotation of the spool when the first clutch is in a closed state.

5. A rope-pulling fitness training device according to claim 4, characterized in that: The first half clutch is provided with a third transmission hole, and the second half clutch is provided with a fourth transmission hole; The resistance component is provided with a third transmission protrusion corresponding to the third transmission hole at one end close to the first half clutch, and the third transmission hole is fixedly connected to the third transmission protrusion; A fourth transmission protrusion corresponding to the fourth transmission hole is provided at one end of the spool close to the second half clutch, and the fourth transmission hole is fixedly connected to the fourth transmission protrusion.

6. A rope-pulling fitness training device according to claim 4, characterized in that: It also includes a clutch control assembly, a second clutch, and a housing mounted outside all the components, the spool is rotatably disposed in the housing, and the number of the resistance assembly, the spool, and the first clutch is at least two; The second clutch is connected to all the resistance components at the same time. When the second clutch is in a closed state, at least two of the resistance components are connected in transmission. When the second clutch is in a disengaged state, the transmission connection between at least two of the resistance components is disconnected. The clutch control assembly is connected to the second clutch and the first clutch respectively to synchronously control the separation or closing of the first clutch and the second clutch; Each of the spools is respectively connected and wound with a draw rope, and each of the draw ropes extends out of the box shell through a through hole on the box shell.

7. A rope-pulling fitness training device according to claim 4, characterized in that: The resistance assembly includes a resistance motor and a transmission assembly, and the transmission assembly includes a first transmission gear and a second transmission gear that are meshed and connected, the first transmission gear is connected to the resistance motor, and the second transmission gear is connected to the first half-clutch.

8. A rope-pulling fitness training device according to claim 6, characterized in that: The clutch control assembly includes a drive motor, a motor bracket, a rack connector, a double-sided rack, a single-sided rack, a fifth transmission gear and a motor transmission gear, and the guide portion is a matching tooth arranged on the outside of the screw-on ring; The drive motor is fixedly connected to the box shell through the motor bracket, the drive motor is connected to a motor transmission gear, the motor transmission gear is meshed with the upper rack of the double-sided rack, and the double-sided rack is connected to the single-sided rack through a rack connector; The lower parts of the single-sided rack and the double-sided rack are respectively meshed with a fifth transmission tooth, and the two fifth transmission teeth are respectively meshed with a matching tooth of the screw-on ring.

9. A rope-pulling fitness training device according to claim 6 or 8, characterized in that: It also includes a speed measuring component, a force measuring component and a brake component; The two resistance components are respectively connected to one speed measuring component, the brake component is connected to the spool, and the two pull ropes are respectively wound around one force measuring component in the box shell and then extend out of the box shell through the through hole on the box shell.

10. A rope-pulling fitness training device according to claim 9, characterized in that: The brake assembly is an electromagnet brake or a latch brake, and the speed measuring assembly is a grating encoding speed measuring assembly or a magnetic encoding speed measuring assembly.

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