Hydromagnetic double-resistance rowing machine

Abstract

The utility model belongs to the technical field of rowing machines, and particularly relates to a water-magnetic double-resistance rowing machine. A water-magnetic double-resistance rowing machine comprises a main frame; the water resistance mechanism comprises a water tank and a paddle rotationally arranged in the water tank, and the center of the paddle is coaxially and fixedly connected with a main shaft; the force application mechanism comprises a handle, a traction rope and a transmission assembly, one end of the traction rope is connected with the handle, and the other end of the traction rope is in transmission connection with the main shaft through the transmission assembly; the magnetic resistance mechanism comprises a damping wheel connected with the main shaft and a magnetic control assembly; the magnetic control assembly comprises a magnet assembly and a driving module which are integrated, and the driving module is configured to drive the magnet assembly to move close to or away from the damping wheel so as to adjust the magnetic distance between the magnet assembly and the damping wheel. The utility model has the advantages that the dynamic response is quicker, and the spatial arrangement is simplified.

Description

Technical Field

[0001] This utility model belongs to the field of rowing machine technology, and in particular relates to a water-magnetic dual-resistance rowing machine. Background Technology

[0002] Chinese Patent Application No. 202321234615.1 discloses a rowing machine, which includes a water resistance mechanism and a magnetic resistance mechanism. The magnetic resistance mechanism includes a fixed shaft, a first magnetic resistance element and a second magnetic resistance element arranged parallel to the fixed shaft, and a pull-wire motor. The pull-wire motor and the second magnetic resistance element are connected by a pull wire. The operation of the pull-wire motor can pull the second magnetic resistance element to a position away from the first magnetic resistance element, thereby controlling the magnitude of the magnetic resistance.

[0003] However, the above solution has the following drawbacks: 1. Due to the complex transmission path and large inertia of the actuator of the pull-wire motor, there is a delay in the dynamic response of the system from receiving the command to the output of resistance, usually requiring an interval of about 10 seconds. Users cannot quickly perceive changes in resistance, resulting in a poor user experience. 2. The traction cable of the pull-wire motor lacks an effective guiding and tension stabilization mechanism, which can easily cause motor malfunctions or shutdowns due to cable tangling or loosening, affecting the durability of the equipment. Utility Model Content

[0004] To address the shortcomings of existing technologies, a water-magnetic dual-resistance rowing machine is provided, which offers a faster dynamic response to resistance and simplifies spatial arrangement.

[0005] This utility model is achieved using the following technical solution: a hydromagnetic dual-resistance rowing machine, comprising:

[0006] Main frame;

[0007] A water resistance mechanism, which is mounted on the main frame, includes a water tank and a blade rotatably disposed in the water tank, with the main shaft coaxially and fixedly connected to the center of the blade.

[0008] The force-applying mechanism, which is mounted on the main frame, includes a handle, a traction rope, and a transmission assembly. One end of the traction rope is connected to the handle, and the other end is connected to the main shaft via the transmission assembly to drive the main shaft to rotate.

[0009] A magnetic reluctance mechanism, comprising a damping wheel directly or indirectly connected to the main shaft, and a magnetic control assembly for adjusting the magnitude of the magnetic resistance of the damping wheel;

[0010] The magnetic control component includes an integrated magnet component and a drive module. The drive module is configured to drive the magnet component to move closer to or further away from the damping wheel to adjust the magnetic distance between the magnet component and the damping wheel.

[0011] The magnetic resistance torque applied by the damping wheel through the magnetic resistance mechanism and the fluid resistance torque of the water resistance mechanism work together on the main shaft to form a composite resistance.

[0012] This solution directly adjusts the distance between the magnet assembly and the damping wheel through the drive module of the magnetic control component, achieving real-time dynamic response of magnetic resistance. This results in a fast response speed and a better user experience. Compared to traditional wire-driven structures, it eliminates redundant mechanical traction components and avoids the risk of malfunctions caused by wire tangling or loosening through a cable-free design, allowing for a more compact spatial layout.

[0013] The drive module can be an existing electric actuator or lead screw assembly, etc., to realize the movement of the magnet assembly.

[0014] The damping wheel can be directly mounted on the main shaft, or it can be indirectly connected to the main shaft through a transmission assembly. For example, a transmission wheel can be mounted on the main shaft, and the damping wheel and the transmission wheel can be connected by a belt drive.

[0015] Preferably, the transmission assembly includes a first transmission wheel coaxially fixedly connected to the main shaft, and the first transmission wheel is wound around the traction rope to transmit tension;

[0016] A second transmission wheel is also coaxially fixedly connected to the main shaft. The damping wheel is rotatably connected to the main frame. The second transmission wheel is linked to the damping wheel through a transmission belt or transmission chain.

[0017] The first and second transmission wheels are arranged at intervals along the main shaft axis to realize independent transmission paths for the water resistance mechanism and the magnetic resistance mechanism.

[0018] Preferably, the transmission assembly includes a first transmission wheel coaxially fixedly connected to the main shaft, and the first transmission wheel is wound around the traction rope to transmit tension;

[0019] The damping wheel is coaxially fixedly connected to the main shaft and rotates synchronously with the main shaft.

[0020] Preferably, the magnetic control assembly is located radially outside the damping wheel, and the magnet assembly includes an arc-shaped plate with a curvature matching the outer edge of the damping wheel, and a plurality of magnets arranged circumferentially along the arc-shaped plate.

[0021] The magnetic hole mechanism is located on the radial outer side of the damping wheel, and the curvature of the arc plate matches the outer edge of the damping wheel, which makes the magnetic effect better.

[0022] Preferably, the magnetic control assembly further includes a housing with a side opening, the housing having an opening on the side facing the damping wheel, and the magnet assembly being movably disposed at the opening;

[0023] The drive module is located inside the housing. The drive module includes a motor, a reduction assembly, a transmission element, and a swing arm. The transmission element includes a meshing part and a connecting part. The meshing part meshes with the reduction wheel of the reduction assembly. The two ends of the swing arm are respectively hinged to the arc plate and the connecting part. When the meshing part rotates, the swing arm moves, thereby enabling the magnet assembly to move closer to or away from the damping wheel.

[0024] Speed ​​reduction components allow for more precise control of the movement of the magnet assembly, thereby better controlling changes in magnetic resistance. Speed ​​reduction components can be planetary gears or worm gears, among others.

[0025] Preferably, one end of the arc-shaped plate is rotatably connected to the housing; when the drive module is running, the arc-shaped plate rotates around its rotatable connection end, causing the magnet on the arc-shaped plate to synchronously approach or move away from the outer edge of the damping wheel along a preset arc trajectory.

[0026] One end of the arc-shaped plate is rotatably connected to the shell, which makes the trajectory of the arc-shaped plate more stable during movement.

[0027] Preferably, the main frame is provided with a control panel, which is electrically connected to the magnetic control component. The control panel is configured to receive resistance adjustment commands input by the user and control the magnetic control component to move the magnet component.

[0028] The control panel can be any existing button-type, rotary, or touchscreen control panel.

[0029] Preferably, a third transmission wheel is coaxially fixed on the main shaft, and a power generation module is provided on the main frame. The power generation module includes a generator and an energy storage unit. The third transmission wheel is connected to the generator via a transmission chain or transmission belt. The energy storage unit stores the electrical energy generated by the generator and supplies electrical energy to the magnetic control components and control panel.

[0030] By setting up a power generation module, the rowing machine can generate its own electricity while the user is exercising, thus meeting the operating needs of the entire device and making it more energy-efficient.

[0031] Preferably, the first drive wheel is sleeved on the outside of the main shaft via a one-way bearing, and the one-way bearing is configured to drive the main shaft to rotate synchronously only when the first drive wheel rotates in the forward direction.

[0032] The reel includes a housing, a reel, and a spiral spring. The housing is fixed to the main frame, and the reel is rigidly connected to or integrally formed with the first drive wheel.

[0033] The spiral spring is located inside the housing and wound around the reel, and its preload direction is opposite to the positive rotation direction of the main shaft.

[0034] When the user releases the handle, the spiral spring drives the spool and the first transmission wheel to rotate in opposite directions to retract the traction rope. At this time, the one-way bearing disengages the first transmission wheel from the main shaft.

[0035] The traction rope is reset via a reel, and the first drive wheel and the main shaft are linked by a one-way bearing. Therefore, when the traction rope is reset, the main shaft will not rotate, and the reel will not be affected by magnetic or water resistance. The rigid connection can be a flange or bolt fixation.

[0036] Preferably, the main frame includes a first mounting plate and a foot pedal. The first mounting plate extends horizontally, the foot pedal is inclined and located in front of the first mounting plate, the water resistance mechanism is provided on the lower side of the first mounting plate, the magnetic control assembly is mounted on the upper side of the first mounting plate, the magnetic control assembly is located on the side of the first mounting plate near the foot pedal, the control panel is provided on the foot pedal, and the magnetic control assembly is located on the rear side of the foot pedal and is electrically connected to the control panel.

[0037] The foot pedal has a control panel for easy user adjustment, and the magnetic control component is located on the side of the first mounting plate near the foot pedal, which can be directly connected to the control panel to further optimize the circuit and reduce the failure rate.

[0038] Compared with existing technologies, the advantages of this invention are: This solution directly adjusts the distance between the magnet assembly and the damping wheel through the drive module of the magnetic control component, achieving real-time dynamic response of magnetic resistance. This results in a fast response speed and a better user experience. Compared to traditional wire-driven structures, it eliminates redundant mechanical traction components and avoids the risk of malfunctions caused by wire tangling or loosening through a cable-free design. This makes the device's spatial layout more compact and also facilitates production and installation. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of the utility model;

[0040] Figure 2 for Figure 1 Another structural diagram from another perspective;

[0041] Figure 3 for Figure 2 A structural diagram after the main frame has been removed;

[0042] Figure 4 This is a schematic diagram of the magnetic control component.

[0043] Figure 5 This is a schematic diagram of the internal structure of the magnetic control component.

[0044] Reference numerals: 1. Main frame; 11. First mounting plate; 12. Second mounting plate; 2. Foot pedal; 21. Control panel; 3. Belt; 4. Handle; 41. Traction rope; 42. First reversing wheel; 43. Second reversing wheel; 5. Water resistance mechanism; 51. Water tank; 52. Paddle; 53. Main shaft; 6. Magnetic control assembly; 61. Damping wheel; 62. Housing; 63. Arc plate; 64. Magnet; 65. Swing arm; 66. Transmission element; 661. Connecting part; 662. Gear part; 67. Reduction assembly; 68. Motor; 69. Circuit board; 7. Generator; 81. First transmission wheel; 82. Second transmission wheel; 83. Third transmission wheel; 9. Winding reel. Detailed Implementation

[0045] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0046] like Figures 1 to 3 As shown, this embodiment discloses a water-magnetic dual-resistance rowing machine, including a main frame 1, which is L-shaped. A first mounting plate 11 and a second mounting plate 12 extending horizontally are provided on the main frame 1, with the first mounting plate 11 located below the second mounting plate 12. A water resistance mechanism 5 is provided on the main frame 1, located below the first mounting plate 11. The water resistance mechanism 5 includes a water tank 51 and a paddle 52 rotatably disposed within the water tank 51. A main shaft 53 is coaxially and fixedly connected to the center of the paddle 52. The main shaft 53 passes upward through the first mounting plate 11 and is rotatably connected to the second mounting plate 12.

[0047] The main frame 1 is also equipped with a force-applying mechanism, which includes a handle 4, a traction rope 41, and a first transmission wheel 81. A first reversing wheel 42 and a second reversing wheel 43 are located between the first transmission wheel 81 and the handle 4. The first reversing wheel 42 is rotatably connected to the second mounting plate 12, and its axial direction extends horizontally. The second reversing wheel 43 is rotatably connected between the first mounting plate 11 and the second mounting plate 12, and its axial direction extends vertically. The traction rope 41 is wound around the first reversing wheel 42, the second reversing wheel 43, and the first transmission wheel 81 (not shown in the figure). When the handle 4 is pulled, the traction rope 41 drives the first transmission wheel 81 to rotate in the positive direction, while the blades experience fluid resistance, thus generating resistance against the handle 4.

[0048] like Figure 3 , Figure 4 and Figure 5As shown, the main frame 1 is also equipped with a magnetic resistance mechanism, which includes a damping wheel 61 rotatably connected between the first mounting plate 11 and the second mounting plate 12, and a magnetic control component 6 for adjusting the magnetic resistance of the damping wheel 61. The magnetic control component 6 includes an integrated magnet assembly and a drive module. The magnetic control component 6 is located radially outside the damping wheel 61, and the drive module is configured to drive the magnet assembly to move closer to or away from the damping wheel 61 to adjust the magnetic distance between the magnet assembly and the damping wheel 61. A second transmission wheel 82 is also coaxially fixedly connected to the main shaft 53. The second transmission wheel 82 is linked to the damping wheel 61 through a transmission belt or transmission chain. In this embodiment, a belt 3 is used to achieve the linkage between the two. The second transmission wheel 82 is located above the first transmission wheel 81 and is arranged at intervals along the axial direction of the main shaft 53, thereby realizing independent transmission paths for the water resistance mechanism 5 and the magnetic resistance mechanism.

[0049] In some other embodiments, the damping wheel 61 can be directly fixed to the main shaft 53, and the magnetic control assembly 6 can be fixed to the lower end of the second mounting plate 12 and located radially outside the damping wheel 61.

[0050] The magnet assembly includes an arc-shaped plate 63 with a curvature matching the outer edge of the damping wheel 61, and a plurality of magnets 64 arranged circumferentially along the arc-shaped plate 63. The magnetic control assembly 6 also includes a housing 62 with a side opening, the housing 62 having an opening on the side facing the damping wheel 61, and the magnet assembly being movably disposed at the opening of the housing 62. The drive module is disposed within the housing 62, and the drive module includes a motor 68, a reduction assembly 67, a transmission element 66, and a swing arm 65. One end of the arc-shaped plate 63 is rotatably connected to the housing 62, and the other end is hinged to the swing arm 65, allowing the arc-shaped plate 63 to rotate around its rotatable end in an arc-shaped trajectory. The transmission element 66 includes a meshing part 662 and a connecting part 661. The meshing part 662 meshes with the reduction wheel of the reduction assembly 67. The two ends of the swing arm 65 are hinged to the arc plate 63 of the magnet assembly and the connecting part 661, respectively. When the meshing part 662 rotates, it can drive the connecting part 661 to rotate, thereby moving the swing arm 65, which in turn drives the arc plate 63 to move, so as to realize the movement of the magnet 64 towards or away from the damping wheel 61. The reduction assembly 67 includes a worm gear and a planetary reduction wheel.

[0051] like Figures 1 to 3 As shown, the main frame 1 also includes a foot pedal 2, which is inclined and located in front of the first mounting plate 11 and the second mounting plate 12. A magnetic control assembly 6 is located on the side of the first mounting plate 11 near the foot pedal 2. A control panel 21 is provided on the foot pedal 2, and the magnetic control assembly 6 is located behind the foot pedal 2. The magnetic control assembly 6 has a circuit board 69, which is electrically connected to the control panel 21. The control panel 21 can be any existing human-computer interaction panel that can be touch screen, button, or rotating.

[0052] like Figures 1 to 3As shown, the first drive wheel 81 is sleeved on the outside of the main shaft 53 via a one-way bearing (not shown in the figure). The one-way bearing is configured to drive the main shaft 53 to rotate synchronously only when the first drive wheel 81 rotates in the forward direction. A cable reel 9 is sleeved on the main shaft 53. The cable reel 9 includes a housing fixed to the first mounting plate 11, a cable reel (not shown in the figure) located inside the housing, and a spiral spring (not shown in the figure). The cable reel is rotatably connected to the main shaft 53 via the bearing, and the cable reel is rigidly connected to the first drive wheel 81 or integrally formed. The spiral spring is wound around the cable reel, and its preload direction is opposite to the forward rotation direction of the main shaft 53. When the user releases the handle 4, the spiral spring drives the cable reel and the first drive wheel 81 to rotate in opposite directions to retract the traction rope 41. At this time, the one-way bearing disengages the linkage between the first drive wheel 81 and the main shaft 53.

[0053] A third transmission wheel 83 is coaxially fixed on the main shaft 53. A power generation module is provided on the first mounting plate 11. The power generation module includes a generator 7 and an energy storage unit. The third transmission wheel 83 is connected to the generator 7 via a belt 3. The energy storage unit stores the electrical energy generated by the generator 7 and supplies power to the magnetic control component 6 and the control panel 21. The third transmission wheel 83 is also rotatably fixed to the main shaft 53 via a one-way bearing. The generator 7 is equipped with a suitable rectifier circuit, so that the generator 7 can generate electricity in both forward and reverse rotation.

Claims

1. A water-magnetic dual-resistance rowing machine, characterized in that, include: Main frame; A water resistance mechanism, which is mounted on the main frame, includes a water tank and a blade rotatably disposed in the water tank, with the center of the blade coaxially and fixedly connected to the main shaft. The force-applying mechanism, which is mounted on the main frame, includes a handle, a traction rope, and a transmission assembly. One end of the traction rope is connected to the handle, and the other end is connected to the main shaft via the transmission assembly to drive the main shaft to rotate. A magnetic reluctance mechanism, comprising a damping wheel directly or indirectly connected to the main shaft, and a magnetic control assembly for adjusting the magnitude of the magnetic resistance of the damping wheel; The magnetic control component includes an integrated magnet component and a drive module. The drive module is configured to drive the magnet component to move closer to or further away from the damping wheel to adjust the magnetic distance between the magnet component and the damping wheel. The magnetic resistance torque applied by the damping wheel through the magnetic resistance mechanism and the fluid resistance torque of the water resistance mechanism work together on the main shaft to form a composite resistance.

2. The hydro-magnetic dual-resistance rowing machine according to claim 1, characterized in that: The transmission assembly includes a first transmission wheel coaxially fixedly connected to the main shaft, and the first transmission wheel is wound around the traction rope to transmit tension. A second transmission wheel is also coaxially fixedly connected to the main shaft. The damping wheel is rotatably connected to the main frame. The second transmission wheel is linked to the damping wheel through a transmission belt or transmission chain. The first and second transmission wheels are arranged at intervals along the main shaft axis to realize independent transmission paths for the water resistance mechanism and the magnetic resistance mechanism.

3. The hydro-magnetic dual-resistance rowing machine according to claim 1, characterized in that: The transmission assembly includes a first transmission wheel coaxially fixedly connected to the main shaft, and the first transmission wheel is wound around the traction rope to transmit tension. The damping wheel is coaxially fixedly connected to the main shaft and rotates synchronously with the main shaft.

4. The hydro-magnetic dual-resistance rowing machine according to claim 1, characterized in that: The magnetic control assembly is located radially outside the damping wheel. The magnet assembly includes an arc-shaped plate with a curvature matching the outer edge of the damping wheel, and a plurality of magnets arranged circumferentially along the arc-shaped plate.

5. The hydro-magnetic dual-resistance rowing machine according to claim 4, characterized in that: The magnetic control assembly also includes a housing with a side opening, the housing having an opening on the side facing the damping wheel, and the magnet assembly being movably disposed at the opening; The drive module is located inside the housing. The drive module includes a motor, a reduction assembly, a transmission element, and a swing arm. The transmission element includes a meshing part and a connecting part. The meshing part meshes with the reduction wheel of the reduction assembly. The two ends of the swing arm are respectively hinged to the arc plate and the connecting part. When the meshing part rotates, the swing arm moves, thereby enabling the magnet assembly to move closer to or away from the damping wheel.

6. The hydromagnetic dual-resistance rowing machine according to claim 5, characterized in that: One end of the arc-shaped plate is rotatably connected to the housing; when the drive module is running, the arc-shaped plate rotates around its rotatable connection end, causing the magnet on the arc-shaped plate to synchronously approach or move away from the outer edge of the damping wheel along a preset arc trajectory.

7. The hydro-magnetic dual-resistance rowing machine according to claim 1, characterized in that: The main frame is equipped with a control panel, which is electrically connected to the magnetic control component. The control panel is configured to receive resistance adjustment commands input by the user and control the magnetic control component to move the magnet component.

8. The hydro-magnetic dual-resistance rowing machine according to claim 7, characterized in that: A third transmission wheel is coaxially fixed on the main shaft, and a power generation module is provided on the main frame. The power generation module includes a generator and an energy storage unit. The third transmission wheel is connected to the generator via a transmission chain or transmission belt. The energy storage unit stores the electrical energy generated by the generator and supplies electrical energy to the magnetic control components and control panel.

9. The hydro-magnetic dual-resistance rowing machine according to claim 2 or 3, characterized in that: The first drive wheel is sleeved on the outside of the main shaft via a one-way bearing, and the one-way bearing is configured to drive the main shaft to rotate synchronously only when the first drive wheel rotates in the forward direction. The main shaft is fitted with a winding device, which includes a housing, a reel, and a spiral spring. The housing is fixed to the main frame, and the reel is rigidly connected to or integrally formed with the first transmission wheel. The spiral spring is located inside the housing and wound around the reel, and its preload direction is opposite to the positive rotation direction of the main shaft. When the user releases the handle, the spiral spring drives the spool and the first transmission wheel to rotate in opposite directions to retract the traction rope. At this time, the one-way bearing disengages the first transmission wheel from the main shaft.

10. The hydro-magnetic dual-resistance rowing machine according to claim 7, characterized in that: The main frame includes a first mounting plate and a foot pedal. The first mounting plate extends horizontally, and the foot pedal is inclined and located in front of the first mounting plate. The water resistance mechanism is provided on the lower side of the first mounting plate, and the magnetic control assembly is mounted on the upper side of the first mounting plate. The magnetic control assembly is located on the side of the first mounting plate near the foot pedal, and the control panel is provided on the foot pedal. The magnetic control assembly is located on the rear side of the foot pedal and is electrically connected to the control panel.

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