Fitness device resistance hand and electric switching control device and fitness device

Abstract

The invention discloses a resistance hand and electric switching control device of a body builder and the body builder, and relates to the technical field of body building equipment. According to the resistance manual and electric switching control device for the body builder, rapid switching between a manual driving mode and an electric driving mode is achieved on a single rack transmission system through a switching mechanism formed by combining an integrated gear support and a switching gear, the risk of single-point failure of a pure electric system is avoided, and the equipment reliability is improved; on the basis of a unified position feedback mechanism of a potentiometer, a closed-loop control reference is provided for an electric mode, visual position guidance is provided for a manual mode, and accurate adjustment in a full mode is achieved; the device is compact in structure, system complexity and cost are reduced, meanwhile, mode switching is labor-saving and smooth due to the lever design of the switching handle, and user experience and equipment operation convenience are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fitness equipment, in particular to a fitness equipment resistance manual-electric switching control device and fitness equipment. BACKGROUND

[0002] At present, the resistance adjustment system of the trolley type fitness equipment taking magnetic control resistance as the core is mainly constructed based on two technical paths: pure manual control and pure electric control.

[0003] The pure manual control system relies on the user to directly drive the mechanical components, although the structure is simple, but the adjustment process lacks accurate feedback, the operation needs to interrupt the training, and the precise setting and reproduction of the resistance position cannot be realized.

[0004] The pure electric control system realizes adjustment through motor driving, which improves the operation convenience, but its function completely depends on the electrical system. Once the motor fails, the circuit problem or power interruption occurs, the whole resistance adjustment function will be completely disabled, and the system reliability is insufficient.

[0005] The core contradiction of the prior art is that the manual control and electric control modes are independent of each other, and the function fusion and seamless switching cannot be realized on a single device. This leads to the fact that several key problems cannot be solved, as follows: First, the device lacks a manual emergency plan that can seamlessly replace the work when the electric drive fails. Once an electrical fault occurs, the user will not be able to continue using the device, and the continuity of the device function cannot be guaranteed. Second, there is a lack of a simple solution that can provide unified and real-time position feedback for both control modes, resulting in inaccurate manual adjustment and the inability of electric control to achieve optimal closed loop.

[0006] Therefore, there is an urgent need for an innovative resistance control device that can effectively integrate manual and electric modes, taking into account high reliability, accurate control and structural simplicity, so as to improve the overall performance and user experience of fitness equipment.

[0007] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general context in which the present application can be practiced. It should not be taken as an acknowledgement that this information is prior art that is widely known as being relevant to the present application. SUMMARY

[0008] In view of the above technical problems, the embodiments of the present application provide a fitness equipment resistance manual-electric switching control device and fitness equipment to solve the problems raised in the background art.

[0009] The present application provides the following technical solutions: a fitness equipment resistance manual-electric switching control device, comprising: a resistance adjustment mechanism and a driving mechanism; The resistance adjusting mechanism comprises a fixed guide rail, a rack sliding on the fixed guide rail, and a magnet assembly fixed on one end of the rack, The driving mechanism comprises a manual driving unit, an electric driving unit, and a switching mechanism; The manual driving unit comprises a manual operating member rotatably connected to the fitness equipment support and a first gear in transmission connection with the manual operating member; The electric driving unit comprises a driving motor fixedly connected to the fitness equipment support and a second gear in transmission connection with the driving motor; The switching mechanism is used for selectively making the first gear or the second gear in meshing transmission connection with the rack on the resistance adjusting mechanism; The first gear or the second gear can drive the rack to move the magnet assembly on the fixed guide rail, so as to change the relative position between the magnet assembly and the magnetic force generating device of the fitness equipment to adjust the resistance.

[0010] Preferably, the switching mechanism comprises a gear support and a conversion gear; The gear support is sliding on the fixed guide rail and located between the first gear and the second gear; the gear support is provided with a hole one through which the rack is movably penetrated; The gear support is provided with a hole two in communication with the hole one, the conversion gear is rotatably connected in the hole two through a rotating shaft, and the lower tooth surface of the conversion gear is in meshing with the rack; The gear support is controlled to move on the fixed guide rail, so as to selectively make the conversion gear mesh with the first gear or the second gear, so as to transmit the manual or electric driving force to the rack.

[0011] Preferably, the switching mechanism further comprises a conversion handle; the conversion handle comprises a lever, a rotating arm and a handle; The rotating arm is rotatably connected to the fitness equipment support through a pin shaft; the handle is rotatably connected to the upper end of the rotating arm; the lever is fixed to the lower end of the rotating arm; The gear support is provided with an insertion hole on one side, and the end of the lever is inserted into the insertion hole.

[0012] Preferably, the position detection mechanism further comprises a potentiometer and a connecting piece; One end of the connecting piece is fixed to the rack, and the other end is mechanically connected to the movable end of the potentiometer, so that the linear displacement of the rack can be converted into the continuous change of the resistance value of the potentiometer.

[0013] Preferably, the position detection mechanism further comprises a controller and a display module; The controller is electrically connected with the potentiometer and the driving motor, and is used for receiving the electric signal output by the potentiometer to obtain the real-time position of the magnet assembly, and controlling the display module to display.

[0014] Preferably, the connecting piece is a yoke, one end of which is fixed to the rack, and the other end is connected to the sliding contact of the potentiometer.

[0015] Preferably, a fixing mechanism is further included, which is used for fixing the switching mechanism on the fixing guide rail or fixing the position of the handle.

[0016] Preferably, a bearing part is arranged in the fixing guide rail, which is used for supporting the rack and making the rack move smoothly.

[0017] Preferably, the magnet assembly includes a magnet fixing plate and a plurality of neodymium-iron-boron permanent magnets fixed to the magnet fixing plate; and the magnet assembly is fixed to the front end of the rack.

[0018] A fitness equipment includes the fitness equipment resistance hand electric dynamic switching control device as described above.

[0019] The fitness equipment resistance hand electric dynamic switching control device and the fitness equipment provided by the embodiment of the present application have the following beneficial effects: (1) The switching mechanism combined with the gear support and the conversion gear is introduced, the physical interlocking and quick switching of the manual and electric drive chains on the single resistance execution mechanism are successfully realized, when the electric system is disabled due to failure or power failure, the user can immediately switch to the pure manual driving mode through simple mechanical operation, and the core resistance adjustment function is ensured not to be interrupted.

[0020] (2) The device integrates the position detection mechanism based on the potentiometer. Whether in manual or electric mode, the linear displacement of the rack is converted into the change of the potentiometer resistance value through the yoke linkage in real time, so as to output the voltage signal proportional to the position, and the precise control of the target position is realized.

[0021] (3) The driving mechanism is designed ingeniously, the manual driving unit and the electric driving unit share the same rack transmission pair and conversion gear. Through the horizontal sliding of the gear support, the selective engagement of the power source between the manual gear and the electric gear can be realized. This highly integrated transmission scheme avoids the problems of complex structure, large space occupation, cost increase and the like caused by setting independent transmission execution mechanisms for the two modes.

[0022] (4) The switching process is realized through the specially designed conversion handle. The handle uses the lever principle to easily convert the swing of the user's hand into the precise small displacement required by the gear support, effectively overcomes the resistance when the gears are engaged and disengaged, and the operation is labor-saving, smooth and has a clear gear feeling. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the angle one of the present application; Figure 2It is the structural schematic view of the angle two of the present application; Figure 3 It is the structural schematic view of the angle two of the present application Figure 2 It is the structural schematic view of the angle two of the present application Figure 4 It is the structural schematic view of the angle two of the present application Figure 1 It is the structural schematic view of the angle two of the present application DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative work fall within the protection scope of the present application.

[0025] In view of the problems mentioned in the above background art, the embodiments of the present application provide a fitness equipment resistance hand electric dynamic switching control device and a fitness equipment to solve the above technical problems, and the technical solutions are as follows: The present application will be further described below with reference to the drawings and the specific embodiments. Figures 1-4

[0026] A fitness equipment resistance hand electric dynamic switching control device, characterized in that it comprises a resistance adjusting mechanism and a driving mechanism. The resistance adjusting mechanism comprises a fixed guide rail 6, a rack 22 sliding on the fixed guide rail 6, and a magnet assembly fixed to one end of the rack 22. The driving mechanism comprises a manual driving unit 2, an electric driving unit and a switching mechanism which are independent of each other. The manual driving unit 2 comprises a manual operating member 2-2 rotatably connected to the fitness equipment support 1 and a first gear 2-1 in transmission connection with the manual operating member 2-2. The electric driving unit comprises a driving motor 3 fixedly connected to the fitness equipment support 1 and a second gear 3-1 in transmission connection with the driving motor 3. The switching mechanism is used for selectively making the first gear 2-1 or the second gear 3-1 in meshing transmission connection with the rack 22 on the resistance adjusting mechanism. The first gear 2-1 or the second gear 3-1 can drive the rack 22 to move the magnet assembly on the fixed guide rail 6, so as to change the relative position of the magnet assembly and the fitness equipment magnetic force generating device to adjust the resistance.

[0027] It is explained that the magnet assembly adopts neodymium iron boron permanent magnet 21, the number of which is 7*2=14, and the magnet assembly is symmetrically fixed to the magnet fixing plate 23 at the front end of the rack 22; the rack adopts alloy aluminum material, and the fixed guide rail 6 adopts aluminum alloy material. ​

[0028] In the embodiment, the switching mechanism comprises a gear bracket 31 and a conversion gear 32. The gear bracket 31 slides on the fixed guide rail 6 and is located between the first gear 2-1 and the second gear 3-1; the gear bracket 31 is provided with a hole 31a through which the rack 22 moves; the gear bracket 31 is provided with a hole 31b through which the fixed guide rail 6 moves. The gear bracket 31 is provided at the top with a hole 31c communicating with the hole 31a, and the conversion gear 32 is rotatably connected in the hole 31c through a rotating shaft, and the lower tooth surface of the conversion gear 32 is in engagement with the rack 22. Controlling the gear bracket 31 to move on the fixed guide rail 6 can selectively make the conversion gear 32 engage with the first gear 2-1 or the second gear 3-1, so as to transmit the driving force of the manual or electric drive to the rack 22.

[0029] In the embodiment, the switching mechanism further comprises a conversion handle 33; the conversion handle 33 comprises a lever 33-1, a rotating arm 33-2 and a handle 33-4. The rotating arm 33-2 is rotatably connected to the fitness equipment bracket 1 through a pin shaft 33-3; the handle 33-4 is rotatably connected to the upper end of the rotating arm 33-2; and the lever 33-1 is fixed to the lower end of the rotating arm 33-2. The gear bracket 31 is provided on one side with an insertion hole 31d, and the end of the lever 33-1 is inserted into the insertion hole 31d.

[0030] When it is necessary to switch the working mode, the operation handle 33-4 is pulled to the left or right. Since the rotating arm 33-2 rotates around the pin shaft 33-3 as the fulcrum, the lever 33-1 at the lower end generates a transverse displacement in the insertion hole 31d, thereby directly driving the gear bracket 31 to slide leftward or rightward on the fixed guide rail 6. Specifically, it includes: Switching to the electric mode: when the user pulls the conversion handle 33 to the right, the lever 33-1 pushes the gear bracket 31 to move leftward through the lever action. In this process, the conversion gear 32 which is always in engagement with the rack 22 moves leftward, and is accurately engaged with the second gear 3-1 of the electric drive unit.

[0031] Switching to the manual mode: when the user pulls the conversion handle 33 to the left, the lever 33-1 pulls the gear bracket 31 to move rightward. The conversion gear 32 moves rightward, disengages from the engagement with the second gear 3-1, and is accurately engaged with the first gear 2-1 of the manual drive unit.

[0032] It is explained that the main reason for using the conversion handle 33 instead of directly manually sliding the gear support 31 is that when the conversion gear 32 on the switching mechanism is engaged with or disengaged from the first gear 2-1 or the second gear 3-1, a certain meshing resistance will be generated between the gears.

[0033] Although the resistance is not large, it is not convenient to directly manually slide and it is difficult to accurately control. Through the lever principle of the conversion handle 33, the user operation force can be amplified, the gear meshing resistance can be easily and smoothly overcome, the precise movement of the gear support 31 can be realized, the mode switching action can be ensured to be smoothly completed, and the overall operation convenience and user experience can be improved.

[0034] In the embodiment, a position detection mechanism is further included, which includes a potentiometer 5 and a connecting piece; One end of the connecting piece is fixed on the rack 22, and the other end is mechanically connected with the movable end of the potentiometer 5, so that the linear displacement of the rack 22 can be converted into the continuous change of the resistance value of the potentiometer 5. The potentiometer is selected to be a linear potentiometer.

[0035] In the embodiment, a controller and a display module are further included. The controller is electrically connected with the potentiometer 5 and the driving motor 3, is used for receiving the electrical signal output by the potentiometer 5 to obtain the real-time position of the magnet assembly, and controls the display module to display.

[0036] In the embodiment, the connecting piece is a yoke 24, one end of which is fixed on the rack 22, and the other end is connected with the sliding contact of the potentiometer 5.

[0037] In the embodiment, a fixing mechanism is further included, which is used for fixing the switching mechanism on the fixed guide rail 6 or fixing the moving position of the handle 33-4.

[0038] The fixing mechanism can be a butterfly bolt simply penetrating the side wall of the gear support 31. After the gear support 31 (the switching mechanism) is moved to the target position, the butterfly bolt is manually tightened to fix the gear support 31 on the fixed guide rail 6.

[0039] It is explained that the fixing mechanism is a conventional prior art in the field and is not the design focus of the present application, and will not be described in detail here.

[0040] In the embodiment, the fixed guide rail 6 is provided with a bearing component for supporting the rack 22 and making it move smoothly.

[0041] In the embodiment, the magnet assembly includes a magnet fixing plate 23 and a plurality of neodymium-iron-boron permanent magnets 21 fixed on the magnet fixing plate 23; and the magnet assembly is fixed to the front end of the rack 22.

[0042] The application discloses a fitness equipment resistance manual-electric switching control device.

[0043] The working method of the fitness equipment resistance manual-electric switching control device is as follows: (1) Resistance adjustment operation in manual mode First, power path switching is performed: by operating the conversion handle 33, the gear bracket 31 is driven to move, so that the conversion gear 32 is in meshing state with the first gear 2-1 of the manual driving unit 2, and meanwhile, it is ensured that the second gear 3-1 of the electric driving unit is completely disengaged. In this way, the transmission chain of the driving motor 3 is disconnected at the physical level.

[0044] Subsequently, the user applies power by rotating the manual operating part 2-2, and the power is sequentially transmitted to the rack 22 via the first gear 2-1 and the conversion gear 32, so that the rack 22 and the magnet assembly at the end thereof are driven to move along the fixed guide rail 6, thereby changing the relative position between the magnet assembly and the fitness equipment magnetic force generating device, and the resistance size is adjusted.

[0045] During the movement of the rack 22, the fork 24 fixedly connected with the rack 22 moves synchronously, and drives the movable end of the potentiometer 5, so that the resistance value of the potentiometer 5 changes continuously, and then a voltage signal linearly proportional to the displacement of the rack 22 is output. The controller receives the signal in real time, and converts it into accurate digital position information.

[0046] (2) Resistance adjustment operation in electric mode First, power path switching is performed: by operating the conversion handle 33, the gear bracket 31 is driven to move, so that the conversion gear 32 is in meshing state with the second gear 3-1 of the electric driving unit, and meanwhile, it is ensured that the first gear 2-1 of the manual driving unit 2 is disengaged. Then, the user sets the target resistance gear or specific position parameter through the man-machine interaction interface of the electric control system, such as a key or a touch screen.

[0047] Subsequently, the controller continuously reads the current position signal fed back by the potentiometer 5, and compares and calculates the target position set by the user, generates corresponding control instructions, and drives the motor 3 to operate. The output torque of the motor 3 is sequentially transmitted to the rack 22 via the second gear 3-1 and the conversion gear 32, and the magnet assembly is pushed to move to the target position. Until the magnet assembly accurately reaches the target position, the motor 3 stops operating, so that the resistance value is quickly, accurately and smoothly adjusted.

[0048] Although the specific embodiments of the application are described above with reference to the drawings, the application is not limited to the scope of the application. Those skilled in the art should understand that various modifications or changes made on the basis of the technical solutions of the application without creative labor are still within the protection scope of the application.

Claims

1. A fitness machine resistance hand electric switching control device, characterized by, The application relates to a resistance manual-electric switching control device for a fitness equipment. The resistance adjusting mechanism comprises a fixed guide rail, a rack sliding on the fixed guide rail and a magnet assembly fixed to one end of the rack. The driving mechanism comprises independent manual driving unit, electric driving unit and a switching mechanism. The manual driving unit comprises a manual operating member rotatingly connected to the fitness equipment support and a first gear wheel in transmission connection with the manual operating member. The electric driving unit comprises a driving motor fixedly connected to the fitness equipment support and a second gear wheel in transmission connection with the driving motor. The switching mechanism is used for selectively making the first gear wheel or the second gear wheel in meshing transmission connection with the rack on the resistance adjusting mechanism. The first gear wheel or the second gear wheel can drive the rack to move the magnet assembly on the fixed guide rail, so as to change the relative position between the magnet assembly and the magnetic force generating device of the fitness equipment and adjust the resistance. The switching mechanism comprises a gear support and a conversion gear wheel.

2. The exercise machine resistance hand electric switching control device according to claim 1, characterized by, The gear support is sliding on the fixed guide rail and is located between the first gear wheel and the second gear wheel. The gear support is provided with a hole one for the rack to pass through. The gear support is provided with a hole two in communication with the hole one. The conversion gear wheel is rotatingly connected to the hole two through a rotating shaft.

3. The exercise machine resistance hand electric switching control device of claim 2, wherein, The lower tooth surface of the conversion gear wheel is in meshing with the rack. The gear support is controlled to move on the fixed guide rail. The conversion gear wheel is selectively in meshing with the first gear wheel or the second gear wheel.

4. The exercise machine resistance hand electric switching control device of claim 1 wherein, The driving force of the manual or electric driving unit is transmitted to the rack. The switching mechanism further comprises a conversion handle.

5. The exercise machine resistance hand electric switching control device of claim 1 wherein, The conversion handle comprises a lever, a rotating arm and a handle. The rotating arm is rotatingly connected to the fitness equipment support through a pin shaft.

6. The exercise machine resistance hand electric switching control device of claim 1 wherein, The handle is rotatingly connected to the upper end of the rotating arm.

7. The exercise machine resistance hand electric switching control device of claim 3, wherein, The lever is fixed to the lower end of the rotating arm.

8. The exercise machine resistance hand electric switching control device of claim 1 wherein, The gear support is provided with a plug hole.

9. The fitness machine resistance hand electric switching control device of claim 1 wherein, The lever is inserted into the plug hole.

10. An exercise machine characterized by, The position detecting mechanism comprises a potentiometer and a connecting member. The connecting member is fixed to one end of the rack and is mechanically connected to the movable end of the potentiometer. The linear displacement of the rack can be converted into the continuous change of the resistance value of the potentiometer. The controller and the display module are electrically connected to the potentiometer and the driving motor. The controller receives the electric signal output by the potentiometer to obtain the real-time position of the magnet assembly and controls the display module to display. The connecting member is a yoke. The fixed mechanism is used for fixing the switching mechanism on the fixed guide rail or fixing the position of the handle. The fixed guide rail is provided with a bearing part for supporting the rack and making the rack move smoothly. The magnet assembly comprises a magnet fixing plate and a plurality of neodymium-iron-boron permanent magnets fixed to the magnet fixing plate. The magnet assembly is fixed to the front end of the rack. The application further relates to a fitness equipment resistance manual-electric switching control device.

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