A dual resistance rowing machine

Abstract

The application discloses a double-resistance rowing machine, which comprises a mounting base, a sliding assembly, a driving device, a water wave simulation assembly and a resistance adjusting mechanism, the driving device and the resistance adjusting mechanism are connected with the water wave simulation assembly, the driving device is used for driving the water wave simulation assembly to run, and the resistance adjusting mechanism is used for controlling the resistance of the water wave simulation assembly driven by the driving device to run; in the resistance adjusting mechanism, a connecting shaft is connected with the water wave simulation assembly, a metal ring is fixed on the connecting shaft, a magnetic force adjusting assembly is combined with the metal ring and is used for adjusting the magnetic resistance borne by the metal ring, and a water injection and drainage adjusting assembly is connected with the water wave simulation assembly and is used for adjusting the water quantity in the water wave simulation assembly. The application has the advantages of convenient adjustment of the running resistance of the rowing machine, improvement of the simulation of a real rowing scene, improvement of the use experience, guarantee of sufficient resistance, and satisfaction of the training amount when the rowing machine is used for training.

Description

Technical Field

[0001] This invention relates to the field of fitness equipment technology, specifically a dual-resistance rowing machine. Background Technology

[0002] Rowing machines are common fitness equipment that are effective in strengthening the muscles of the legs, waist, upper limbs, chest, and back. Since different users have different usage requirements, it is necessary to install relevant adjustment structures to adjust the damping of the rowing machine in order to meet the damping adjustment needs of specific users.

[0003] Traditional rowing machines mostly consist of a single resistance device. Some rowing machines use electromagnetic damping adjustment components to adjust the damping, which simplifies the structure but makes it difficult to simulate real rowing conditions, resulting in a reduced user experience. Other rowing machines generate water resistance by adding water inside, but the water is usually pre-filled, making it difficult to adjust the water volume and resistance in real time. Moreover, the water resistance often fails to provide the resistance needed for real rowing, leading to insufficient training volume. Summary of the Invention

[0004] To address the aforementioned shortcomings in existing technologies, the present invention aims to provide a dual-resistance rowing machine that offers the advantage of convenient adjustment of the rowing machine's operating resistance. This enhances the simulation of real rowing scenarios, improves the user experience, and ensures sufficient resistance to meet the training volume requirements when using the rowing machine.

[0005] The technical solution adopted by the present invention to achieve the above objectives is as follows: a dual-resistance rowing machine, comprising a mounting base and a sliding component, a drive device, a wave simulation component, and a resistance adjustment mechanism mounted on the mounting base. The wave simulation component and the sliding component are respectively arranged on the front and rear sides of the mounting base. The drive device and the resistance adjustment mechanism are both linked to the wave simulation component. The drive device is used to drive the wave simulation component to run, and the resistance adjustment mechanism is used to control the resistance when the drive device drives the wave simulation component to run. The resistance adjustment mechanism includes a connecting shaft, a metal ring, a magnetic adjustment component, a water inlet / outlet adjustment component, and a drive motor. The connecting shaft is poweredly connected to the wave simulation component. The metal ring is fixedly mounted on the connecting shaft. The magnetic adjustment component is matched with the metal ring and is used to adjust the magnetic resistance borne by the metal ring. The water inlet / outlet adjustment component is connected to the wave simulation component and is used to adjust the water volume in the wave simulation component. The drive motor is poweredly connected to the magnetic adjustment component and the water inlet / outlet adjustment component through a transmission mechanism.

[0006] In some of these implementations, to ensure that the sliding components, drive devices, wave simulation components, and resistance adjustment mechanisms can be stably installed on the mounting base and to achieve the interconnection and cooperation between the components, the following technical solutions regarding the mounting base are also provided.

[0007] The mounting base is fixedly connected to a mounting cover and a mounting bracket. The wave simulation component is mounted on the top of the mounting cover. The resistance adjustment mechanism is mounted inside the mounting cover. The drive device is mounted on the mounting bracket, and the front end of the mounting bracket extends above the wave simulation component.

[0008] In some implementations, to ensure that the wave simulation component can be stably installed on the mounting cover, and to ensure that the wave simulation component can be stably connected to the connecting shaft in the resistance adjustment mechanism, so that the resistance adjustment mechanism can provide appropriate resistance to the operation of the wave simulation component, the following technical solutions are provided.

[0009] The water wave simulation component includes a water storage pan, a sealing cover, a mounting shaft, and a drive propeller. The water storage pan is fixedly installed on the top of the mounting cover, the sealing cover is sealed and fixed on the top of the water storage pan, and the mounting shaft is rotatably installed at the axis of the water storage pan and the sealing cover. The connecting shaft and the mounting shaft are concentrically connected. The drive propeller includes multiple sets arranged inside the water storage pan, and each set of drive propellers is fixed on the mounting shaft in a circular array.

[0010] In some of these implementations, to ensure that the magnetic force adjustment component can effectively adjust the magnetic resistance borne by the metal ring, and to ensure that the magnetic force adjustment component is stably installed in the mounting cover, the following technical solutions are provided.

[0011] The magnetic adjustment assembly includes a fixed disk, a rotating disk, a sliding sleeve, a sliding plate, and a magnetic strip. The fixed disk is fixedly installed in the mounting cover and arranged around the connecting shaft. The rotating disk is rotatably installed on the fixed disk and is concentrically arranged with the fixed disk. Multiple sets of sliding sleeves are evenly fixed to the inner edge of the fixed disk. The sliding plate is slidably installed in the sliding sleeve and arranged above the rotating disk. The magnetic strip is fixedly installed on the sliding plate and arranged below the metal ring. Multiple sets of arc-shaped guide grooves that diffuse from the inside to the outside are evenly opened on the rotating disk. Guide posts that slide in conjunction with the arc-shaped guide grooves are fixed to the sliding strip.

[0012] In some of these implementations, the following technical solutions are provided to ensure that the water volume in the water storage pan can be adjusted by the water injection and drainage adjustment components, thereby adjusting the resistance required for the drive paddle to agitate the clean water.

[0013] The water inlet / outlet regulating assembly includes a water storage cylinder, a sealing piston, a drive screw, a drive seat, and a connecting pipe. The water storage cylinder is fixedly installed in the mounting cover, the sealing piston is slidably installed in the water storage cylinder, the drive seat is rotatably installed at one end of the water storage cylinder, the drive screw is screwed to the drive seat, and the end of the drive screw is fixedly connected to the sealing piston. The two ends of the connecting pipe are respectively connected to the water storage cylinder and the water storage pan. The rotating disc and the drive seat are both poweredly connected to the drive motor through the transmission mechanism.

[0014] In some implementations, to ensure that the drive motor can simultaneously drive the magnetic force adjustment component and the water inlet / outlet adjustment component to operate synchronously through the transmission mechanism, so as to simultaneously increase or decrease the water resistance and magnetic resistance effect of the rowing machine, the following technical solution regarding the transmission mechanism is provided.

[0015] The drive motor is fixedly installed in the mounting cover. The transmission mechanism includes a drive shaft, a drive gear, a drive sprocket, a transmission gear, and a transmission sprocket. The drive shaft is rotatably installed in the mounting cover and fixedly connected to the rotating shaft of the drive motor. The drive gear and the drive sprocket are both fixedly connected to the drive shaft. The transmission gear is fixedly connected to the periphery of the rotating disk, and the transmission sprocket is fixedly connected to the periphery of the drive seat. The drive gear and the transmission gear are meshed. The drive sprocket and the transmission sprocket are driven by a chain.

[0016] In some implementations, when using a rowing machine, the user sits on the sliding component and moves their hips back and forth and bends and stretches their body by pulling the drive device to achieve a fitness effect. The following technical solutions are provided to achieve stable sliding of the sliding component.

[0017] The sliding assembly includes a foot pedal, a sliding guide rail, and a sliding seat. The foot pedal and the sliding guide rail are both fixed to the mounting base and arranged on the rear side of the mounting cover. The sliding seat is slidably mounted on the sliding guide rail, and a seat cushion is fixedly mounted on the upper surface of the sliding seat.

[0018] In some implementations, to facilitate user operation of the drive device and to facilitate automatic reset of the drive device, the following related technical solutions are provided.

[0019] The drive device includes a drive shaft, ratchet, pawl, spring mechanism, traction disc, traction belt, and handle. The drive shaft and ratchet are rotatably mounted on the mounting bracket and are concentrically arranged. The spring mechanism is mounted on the drive shaft. The ratchet is arranged around the drive shaft. The mounting disc is fixedly connected to the drive shaft. The pawl includes multiple sets and is rotatably mounted on the mounting disc, and the pawl is engaged with the ratchet. A spring is also mounted on the pawl. The traction disc is fixedly mounted to the drive shaft. One end of the traction belt is wound around the traction disc, and the other end is fixedly connected to the handle. The mounting shaft is poweredly connected to the ratchet.

[0020] In some implementations, the following technical solutions are provided to ensure that the drive device can drive the mounting shaft in the wave simulation component to rotate.

[0021] A first synchronous pulley is fixedly connected to the periphery of the ratchet, and a second synchronous pulley is fixedly connected to the mounting shaft. The first and second synchronous pulleys are connected to a synchronous belt for belt drive.

[0022] The beneficial effects of this invention are as follows: It can simultaneously drive the magnetic force adjustment component and the water inlet / outlet adjustment component via a drive motor and transmission mechanism, offering the advantage of convenient adjustment of the rowing machine's resistance. The magnetic force adjustment component interacts with the metal ring, changing the magnetic field lines cut by the rotating metal ring, thereby adjusting the magnitude of the magnetic resistance during rowing machine operation. The water inlet / outlet adjustment component adjusts the water volume in the wave simulation component, thus adjusting the water resistance during wave simulation component operation. The water inlet / outlet adjustment component can simulate the water resistance of real rowing, improving the user experience of the rowing machine. The magnetic force adjustment component supplements the resistance, compensating for insufficient water resistance leading to inadequate training volume. Furthermore, the magnetic force adjustment component is in a non-contact state with the metal ring, so it does not affect the user experience during use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0024] Figure 2 This is a structural diagram of the mounting base;

[0025] Figure 3 This is a schematic diagram of the drive unit when it is mounted on the mounting bracket.

[0026] Figure 4 This is a schematic diagram of the drive unit after it has been cut open.

[0027] Figure 5 This is a cross-sectional schematic diagram of the ratchet and its connected components;

[0028] Figure 6 This is a schematic diagram of the structure when the drive shaft and the spring mechanism are combined.

[0029] Figure 7 This is a schematic diagram of the structure when the drive shaft and the pawl are combined.

[0030] Figure 8 This is a schematic diagram of the internal structure of the water wave simulation component;

[0031] Figure 9 A structural diagram showing the mounting shaft and its connected components;

[0032] Figure 10 This is a schematic diagram of the resistance adjustment mechanism;

[0033] Figure 11 This is a schematic diagram of the disassembled magnetic force adjustment component;

[0034] Figure 12 This is a schematic diagram of the internal structure of the water inlet / outlet regulating assembly.

[0035] In the diagram: 1. Mounting base, 11. Mounting cover, 12. Mounting bracket, 21. Foot pedal, 211. Shoulder strap, 22. Sliding guide rail, 23. Sliding seat, 3. Drive unit, 31. Drive shaft, 311. Mounting disc, 32. Ratchet, 321. Rotating seat, 322. First synchronous pulley, 33. Pad, 331. Spring, 34. Clockwork mechanism, 341. Housing, 35. Traction disc, 36. Traction belt, 37. Handle, 38. Guide roller assembly, 4. Water wave simulation component, 41. Water storage tray, 42. Sealing cover, 43. Mounting shaft, 431. Second synchronous pulley. 44 Drive propeller, 45 Arc-shaped connecting plate, 46 Limiting ring, 51 Connecting shaft, 511 Connecting disc, 52 Metal ring, 531 Fixed disc, 532 Rotating disc, 533 Sliding sleeve, 534 Sliding plate, 535 Magnetic strip, 536 Arc-shaped guide groove, 537 Guide column, 541 Water storage cylinder, 542 Sealing piston, 543 Drive screw, 544 Drive seat, 545 Connecting pipe, 55 Drive motor, 561 Drive shaft, 562 Drive gear, 563 Drive sprocket, 564 Transmission gear, 565 Transmission sprocket. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1-12 The following embodiments will be used to effectively explain the structure and arrangement of the components of the present invention, and the operating principles of each component and related components will also be explained.

[0038] Example 1

[0039] A dual-resistance rowing machine includes a mounting base 1 and a sliding component, a drive device 3, a wave simulation component 4, and a resistance adjustment mechanism, all mounted on the mounting base 1. The wave simulation component 4 and the sliding component are respectively arranged on the front and rear sides of the mounting base 1. The drive device 3 and the resistance adjustment mechanism are both linked to the wave simulation component 4. The drive device 3 is used to drive the wave simulation component 4, and the resistance adjustment mechanism is used to control the resistance when the drive device 3 drives the wave simulation component 4. The resistance adjustment mechanism includes a connecting shaft 51, a metal ring 52, a magnetic adjustment component, an inlet / outlet adjustment component, and a drive motor 55. The connecting shaft 51 is poweredly connected to the wave simulation component 4. The metal ring 52 is fixedly mounted on the connecting shaft 51. The magnetic adjustment component is matched with the metal ring 52 and is used to adjust the magnetic resistance borne by the metal ring 52. The inlet / outlet adjustment component is connected to the wave simulation component 4 and is used to adjust the water volume in the wave simulation component 4. The drive motor 55 is poweredly connected to the magnetic adjustment component and the inlet / outlet adjustment component through a transmission mechanism.

[0040] A connecting disc 511 is fixed to the connecting shaft 51, and a metal ring 52 is fixed to the edge of the connecting disc 511 by detachable bolts, which can ensure that the metal ring 52 is stably installed on the connecting shaft 51.

[0041] Users operate the drive device 3, which, in conjunction with the sliding component, allows for changes in body posture such as stretching, bending, and hip movement, thereby training the related muscles.

[0042] The water wave simulation component 4 can simulate the sound of water waves when rowing, and can also serve as a source of water resistance when using a rowing machine.

[0043] In the resistance adjustment mechanism, the magnetic adjustment component and the water inlet / outlet adjustment component can be driven simultaneously by the drive motor 55 and the transmission mechanism. The magnetic adjustment component interacts with the metal ring 52, changing the magnetic lines of force cut by the rotation of the metal ring 52, thereby adjusting the magnitude of the magnetic resistance during the rowing machine's operation. The water inlet / outlet adjustment component can adjust the water volume in the wave simulation component 4, thereby adjusting the water resistance during the operation of the wave simulation component 4. The water inlet / outlet adjustment component can simulate the water resistance during real rowing to improve the user experience of the rowing machine. The magnetic adjustment component can supplement the resistance to compensate for insufficient water resistance, thus preventing the training volume from reaching the target level. The magnetic adjustment component and the metal ring 52 are in a non-contact state and will not affect the user experience during use.

[0044] Example 2

[0045] To ensure that the sliding component, drive device 3, wave simulation component 4, and resistance adjustment mechanism can be stably installed on the mounting base 1 and to achieve the interconnection and cooperation between the components, the following technical solution for the mounting base 1 is also provided.

[0046] Mounting base 1 is fixedly connected to mounting cover 11 and mounting bracket 12. Water wave simulation component 4 is installed on top of mounting cover 11. Resistance adjustment mechanism is installed inside mounting cover 11. Drive device 3 is installed on mounting bracket 12, and the front end of mounting bracket 12 extends above water wave simulation component 4.

[0047] The installation of the outer cover 11 ensures that the wave simulation component 4 is stably installed on it, and allows the resistance adjustment mechanism to be installed inside and linked with the wave simulation component 4, thus avoiding the exposure of the components in the resistance adjustment mechanism and affecting the overall aesthetics of the rowing machine.

[0048] The mounting bracket 12 ensures stable installation of the drive device 3 while facilitating operation of the drive device 3, and ensures a stable connection between the drive device 3 and the wave simulation component 4.

[0049] Example 3

[0050] To ensure that the wave simulation component 4 can be stably installed on the mounting cover 11, and to ensure that the wave simulation component 4 can be stably connected to the connecting shaft 51 in the resistance adjustment mechanism, so that the resistance adjustment mechanism can provide appropriate resistance for the operation of the wave simulation component 4, the following technical solution is provided.

[0051] The water wave simulation component 4 includes a water storage pan 41, a sealing cover 42, a mounting shaft 43, and a drive propeller 44. The water storage pan 41 is fixedly installed on the top of the mounting cover 11, the sealing cover 42 is sealed and fixed on the top of the water storage pan 41, the mounting shaft 43 is rotatably installed at the axis of the water storage pan 41 and the sealing cover 42, and the connecting shaft 51 is concentrically fixed to the mounting shaft 43. The drive propeller 44 includes multiple sets arranged inside the water storage pan 41, and each set of drive propellers 44 is fixed on the mounting shaft 43 in a circular array.

[0052] The sealing cover 42 and the water storage pan 41 are fixed together by detachable bolts, which makes it easy to install the mounting shaft 43 and the drive paddle 44 into the water storage pan 41, and also makes it easy to clean the inside of the water storage pan 41. The connection between the sealing cover 42 and the water storage pan 41 is provided with a sealing ring to prevent the stirred water from leaking out from the connection.

[0053] An arc-shaped connecting plate 45 is fixed to the inner end of the drive propeller 44. The arc-shaped connecting plate 45 is aligned with the outer wall of the mounting shaft 43 and fixed to it by detachable bolts. Limiting rings 46 arranged on the upper and lower sides of the arc-shaped connecting plate 45 are also fixed to the mounting shaft 43, which can further improve the stability of the drive propeller 44 on the mounting shaft 43.

[0054] Example 4

[0055] To ensure that the magnetic force adjustment component can effectively adjust the magnetic resistance borne by the metal ring 52, and to ensure that the magnetic force adjustment component is stably installed in the mounting cover 11, the following technical solution is provided.

[0056] The magnetic adjustment assembly includes a fixed disk 531, a rotating disk 532, a sliding sleeve 533, a sliding plate 534, and a magnetic strip 535. The fixed disk 531 is fixedly installed in the mounting cover 11 and arranged around the connecting shaft 51. The rotating disk 532 is rotatably installed on the fixed disk 531 and is arranged concentrically with the fixed disk 531. Multiple sets of sliding sleeves 533 are evenly fixed to the inner edge of the fixed disk 531. The sliding plate 534 is slidably installed in the sliding sleeve 533 and arranged above the rotating disk 532. The magnetic strip 535 is fixedly installed on the sliding plate 534 and arranged below the metal ring 52. Multiple sets of arc-shaped guide grooves 536 are evenly opened on the rotating disk 532, which diffuse from the inside out. Guide posts 537 that slide in conjunction with the arc-shaped guide grooves 536 are fixed to the sliding strip.

[0057] The fixed plate 531 ensures the stable installation of the rotating plate 532 on it, and also ensures the matching arrangement of the sliding sleeve 533 and the rotating plate 532. During the assembly of the magnetic adjustment assembly, the fixed plate 531, rotating plate 532, metal ring 52, and connecting shaft 51 are arranged on the same axis. Both the fixed plate 531 and the rotating plate 532 have inner openings, ensuring that the connecting shaft 51 is stably installed inside without interfering with each other's movement.

[0058] When the rotating disk 532 is controlled to rotate, it can drive the arc-shaped guide groove 536 on it to rotate synchronously. This will cause different positions of the arc-shaped guide groove 536 to interact with the guide post 537, thereby driving the guide post 537 and the sliding plate 534 fixed to the guide post 537 to slide radially along the fixed disk 531, thereby adjusting the overlapping area of ​​the magnetic strip 535 and the metal ring 52 projection.

[0059] When the drive device 3 drives the water wave simulation component 4 to operate, it can drive the metal ring 52 fixed to it to rotate synchronously, so as to cut the magnetic field lines of each magnetic strip 535, thereby generating magnetic resistance that prevents the metal ring 52 from rotating further. When adjusting the overlapping area of ​​the projection of the magnetic strip 535 and the metal ring 52, it is essentially adjusting the magnetic flux, thereby adjusting the magnitude of the magnetic resistance, thus achieving the effect of adjusting the rowing machine resistance.

[0060] Example 5

[0061] To ensure that the water injection and drainage adjustment assembly can adjust the water volume in the water storage pan 41, and thus adjust the resistance required for the drive paddle 44 to agitate the clean water, the following technical solution is provided.

[0062] The water inlet and outlet regulating assembly includes a water storage cylinder 541, a sealing piston 542, a drive screw 543, a drive seat 544, and a connecting pipe 545. The water storage cylinder 541 is fixedly installed in the mounting cover 11. The sealing piston 542 is slidably installed in the water storage cylinder 541. The drive seat 544 is rotatably installed at one end of the water storage cylinder 541. The drive screw 543 is screwed to the drive seat 544, and the end of the drive screw 543 is fixedly connected to the sealing piston 542. The two ends of the connecting pipe 545 are respectively connected to the water storage cylinder 541 and the water storage pan 41. The rotating disk 532 and the drive seat 544 are both powered by the drive motor 55 through a transmission mechanism.

[0063] The water storage cylinder 541 is horizontally fixed in the mounting cover 11. As one implementation, the water storage cylinder 541 has two sets arranged side by side to ensure the adjustment range of the water volume in the water storage pan 41. A threaded hole adapted to the drive screw 543 is opened at the axis of the drive seat 544 to ensure the stable combination of the drive screw 543 and the drive seat 544. A linear guide groove is also opened on the drive screw 543 along the axis of the drive screw 543. An installation notch matching the cross section of the drive screw 543 with the linear guide groove is opened on the end wall where the water storage cylinder 541 connects to the drive seat 544. When the drive seat 544 rotates, the linear guide groove can restrict the drive screw 543 and the connected sealing piston 542 to move in a straight line, thereby ensuring the stable operation of the drive screw 543 by the drive seat 544.

[0064] One end of the water storage cylinder 541, which is away from the drive seat 544, is connected to the connecting pipe 545, and the other end of the connecting pipe 545 is connected to the bottom of the water storage pan 41.

[0065] When the water injection and drainage adjustment assembly is running, it can drive the sealing piston 542 to move in the water storage cylinder 541. When the sealing piston 542 moves towards the drive seat 544, it can draw water from the water storage pan 41 into the water storage cylinder 541, thereby draining the water storage pan 41 to reduce resistance. When the sealing piston 542 moves towards the connecting pipe 545, it can squeeze water from the water storage cylinder 541 into the water storage pan 41, thereby injecting water into the water storage pan 41 to increase resistance.

[0066] Example 6

[0067] To ensure that the drive motor 55 can simultaneously drive the magnetic force adjustment component and the water inlet / outlet adjustment component to operate synchronously through the transmission mechanism, so as to simultaneously increase or decrease the water resistance and magnetic resistance of the rowing machine, the following technical solution regarding the transmission mechanism is provided.

[0068] The drive motor 55 is fixedly installed in the mounting cover 11. The transmission mechanism includes a drive shaft 561, a drive gear 562, a drive sprocket 563, a transmission gear 564, and a transmission sprocket 565. The drive shaft 561 is rotatably installed in the mounting cover 11 and is fixedly connected to the rotating shaft of the drive motor 55. The drive gear 562 and the drive sprocket 563 are both fixedly connected to the drive shaft 561. The transmission gear 564 is fixedly connected to the periphery of the rotating disk 532, and the transmission sprocket 565 is fixedly connected to the periphery of the drive seat 544. The drive gear 562 and the transmission gear 564 are meshed. The drive sprocket 563 and the transmission sprocket 565 are chain driven by a chain.

[0069] The drive motor 55 is mounted horizontally in the mounting cover 11. The drive shaft 561 is arranged in the horizontal direction. Therefore, both the drive gear 562 and the transmission gear 564 are bevel gears, which can change the direction of power transmission and drive the rotating disk 532 to rotate stably. The number of teeth of the transmission gear 564 is 10-15 times the number of teeth of the drive gear 562. When the drive motor 55 drives the drive gear 562 to rotate, it can drive the transmission gear 564 and the rotating disk 532 on it to rotate at a low speed, so as to improve the accuracy of the magnetic force adjustment component in adjusting the magnetic resistance.

[0070] Depending on the specific circumstances, when two sets of water storage cylinders 541 are set, the drive sprocket 563 is arranged between the two sets of water storage cylinders 541, and the size of the drive sprocket 563 is larger than that of the transmission sprocket 565, which can ensure that the drive sprocket 563 is stably combined with the two sets of transmission sprockets 565 on both sides through the chain.

[0071] When the drive motor 55 is working, it drives the drive shaft 561 and its drive gear 562 and drive sprocket 563 to rotate synchronously. When the drive gear 562 drives the transmission gear 564 and the rotating disk 532 to rotate to increase the overlapping area of ​​the magnetic strip 535 and the metal ring 52, the magnetic resistance of the metal ring 52 increases. At the same time, the transmission sprocket 565 and the drive seat 544 drive the sealing piston 542 to move towards the connecting pipe 545, squeezing the water in the water storage cylinder 541 into the water storage pan 41, thereby increasing the resistance of the drive paddle 44 when it moves the water.

[0072] After the drive motor 55 synchronously adjusts the water resistance and magnetic resistance, in order to ensure that the magnetic force adjustment component and the water injection and drainage adjustment component are not in operation, the drive motor 55 adopts a conical rotor motor. When the machine is stopped, the motor shaft is locked, which can prevent its ineffective operation from affecting the resistance adjustment accuracy.

[0073] Example 7

[0074] When using the rowing machine, the user sits on the sliding component and moves the hips back and forth and bends and stretches the body by pulling the drive device 3 to achieve the fitness effect. The following technical solutions are provided to achieve stable sliding of the sliding component.

[0075] The sliding assembly includes a foot pedal 21, a sliding guide rail 22, and a sliding seat 23. The foot pedal 21 and the sliding guide rail 22 are both fixed to the mounting base 1 and arranged on the rear side of the mounting cover 11. The sliding seat 23 is slidably mounted on the sliding guide rail 22, and a seat cushion is fixedly mounted on the upper surface of the sliding seat 23.

[0076] When using the rowing machine, the user places both feet on the foot pedals 21, sits on the seat cushion on the sliding seat 23, and operates the drive device 3 with both hands to drive the water wave simulation component 4, while stretching and bending the body.

[0077] A carrying strap 211 is also attached to the foot pedal 21, which can effectively fix the feet and make it easier for the user to bend the body and pull back the hips to enter the next rowing posture.

[0078] Example 8

[0079] To facilitate user operation of the drive device 3 and to enable automatic reset of the drive device 3, the following related technical solutions are provided.

[0080] The drive unit 3 includes a drive shaft 31, a ratchet 32, a pawl 33, a spring mechanism 34, a traction disc 35, a traction belt 36, and a handle 37. The drive shaft 31 and the ratchet 32 ​​are rotatably mounted on the mounting bracket 12 and are arranged concentrically. The spring mechanism 34 is mounted on the drive shaft 31. The ratchet 32 ​​is arranged around the drive shaft 31. The mounting disc 311 is fixedly connected to the drive shaft 31. The pawl 33 includes multiple sets and is rotatably mounted on the mounting disc 311. The pawl 33 is engaged with the ratchet 32. A spring 331 is also mounted on the pawl 33. The traction disc 35 is fixedly mounted on the drive shaft 31. One end of the traction belt 36 is wound around the traction disc 35 and the other end is fixedly connected to the handle 37. The mounting shaft 43 is poweredly connected to the ratchet 32.

[0081] For the pawl 33, its inner end is rotatably mounted on the mounting plate 311. The two ends of the spring 331 are connected to the pawl 33 and the mounting plate 311 respectively. In its natural state, it can drive the pawl 33 to flip outward and maintain engagement with the ratchet teeth on the ratchet 32.

[0082] The spring mechanism 34 has a spiral structure. Its outer end is connected to the housing 341 fixed to the mounting bracket 12, and its inner end is connected to the drive shaft 31. When the drive shaft 31 rotates, it can drive the spring mechanism 34 to tighten and store energy. After the action on the drive shaft 31 is removed, the potential energy is released and drives the drive shaft 31 to rotate in the opposite direction to reset.

[0083] Multiple sets of guide roller groups 38 are also arranged on the mounting bracket 12. Each set of guide roller groups 38 includes two sets of guide rollers arranged side by side. The traction belt 36 is placed between the two sets of guide rollers to facilitate the adjustment of the extension direction of the traction belt 36 so that it is reasonably arranged on the mounting bracket 12.

[0084] A rotating seat 321 is rotatably mounted on the mounting bracket 12, and a ratchet 32 ​​is fixed on the rotating seat 321 to ensure that the ratchet 32 ​​is stably mounted on the mounting bracket 12 in a relative rotational manner. A through hole is provided at the center of the rotating seat 321 to ensure that the drive shaft 31 and the mounting plate 311 are stably arranged therein without motion interference.

[0085] When the handle 37 is pulled outwards to pull the traction belt 36, the traction disc 35, the drive shaft 31 and the pawl 33 mounted on the drive shaft 31 can be driven to rotate counterclockwise synchronously. At this time, the pawl 33 and the ratchet 32 ​​are engaged, which in turn drives the mounting shaft 43 in the water wave simulation device to rotate, and achieves the rowing machine fitness effect in conjunction with the resistance adjustment mechanism.

[0086] During the above operation, the spring mechanism 34 tightens and stores elastic potential energy. When the force applied to the handle 37 is released, the spring mechanism 34 drives the traction disc 35 and the drive shaft 31 to rotate clockwise, rewinding the pulled-out traction belt 36 onto the traction disc 35, thus resetting the traction belt 36 to facilitate the next set of rowing movements. At the same time, the ratchet 32 ​​and the pawl 33 are in a non-engaged state, and the drive shaft 31 cannot transmit power to the ratchet 32 ​​and the wave simulation component 4.

[0087] To ensure that the drive device 3 can drive the mounting shaft 43 in the water wave simulation component 4 to rotate, the following technical solution is provided.

[0088] A first synchronous pulley 322 is fixedly connected to the periphery of the ratchet 32, and a second synchronous pulley 431 is fixedly connected to the mounting shaft 43. The first synchronous pulley 322 and the second synchronous pulley 431 are belt driven by a synchronous belt.

[0089] When the handle is pulled and the drive shaft 31 is rotated, the ratchet 32 ​​and pawl 33 are rotated through the combination of ratchet 32 ​​and pawl 33. The mounting shaft 43 is rotated through the combination of synchronous pulley and synchronous belt, thereby driving the water wave simulation device to operate. The resistance effect applied by the resistance adjustment mechanism achieves the effect of training and fitness.

[0090] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0091] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual resistance rowing machine characterized by: The device includes a mounting base (1) and a sliding component, a drive device (3), a wave simulation component (4), and a resistance adjustment mechanism that are mounted on the mounting base (1). The wave simulation component (4) and the sliding component are respectively arranged on the front and rear sides of the mounting base (1). The drive device (3) and the resistance adjustment mechanism are linked with the wave simulation component (4). The drive device (3) is used to drive the wave simulation component (4) to run, and the resistance adjustment mechanism is used to control the resistance when the drive device (3) drives the wave simulation component (4) to run. The resistance adjustment mechanism includes a connecting shaft (51), a metal ring (52), a magnetic adjustment component, a water injection and drainage adjustment component, and a drive motor (55). The connecting shaft (51) is poweredly connected to the wave simulation component (4). The metal ring (52) is fixedly installed on the connecting shaft (51). The magnetic adjustment component is matched with the metal ring (52). The water injection and drainage adjustment component is connected to the wave simulation component (4). The drive motor (55) is poweredly connected to the magnetic adjustment component and the water injection and drainage adjustment component through a transmission mechanism. The mounting base (1) is fixedly connected to a mounting cover (11) and a mounting bracket (12). The magnetic adjustment assembly includes a fixed disk (531), a rotating disk (532), a sliding sleeve (533), a sliding plate (534), and a magnetic strip (535). The fixed disk (531) is fixedly installed in the mounting cover (11) and arranged around the connecting shaft (51). The rotating disk (532) is rotatably installed on the fixed disk (531) and is concentrically arranged with the fixed disk (531). Multiple sets of sliding sleeves (533) are uniformly fixed to the inner edge of the fixed disk (531). The sliding plate (534) is slidably installed in the sliding sleeve (533) and arranged above the rotating disk (532). The magnetic strip (535) is fixedly installed on the sliding plate (534) and arranged below the metal ring (52). Multiple sets of arc-shaped guide grooves (536) that diffuse from the inside to the outside are uniformly opened on the rotating disk (532). The sliding strip is fixed with a guide post (537) that slides in combination with the arc-shaped guide groove (536). The water injection and drainage adjustment assembly includes a water storage cylinder (541), a sealing piston (542), a drive screw (543), a drive seat (544), and a connecting pipe (545). The water storage cylinder (541) is fixedly installed in the mounting cover (11). The sealing piston (542) is slidably installed in the water storage cylinder (541). The drive seat (544) is rotatably installed at one end of the water storage cylinder (541). The drive screw (543) is screwed to the drive seat (544), and the end of the drive screw (543) is fixedly connected to the sealing piston (542). The two ends of the connecting pipe (545) are respectively connected to the water storage cylinder (541) and the water storage pan (41). The rotating disk (532) and the drive seat (544) are both powered by the drive motor (55) through the transmission mechanism. The drive motor (55) is fixedly installed in the mounting cover (11). The transmission mechanism includes a drive shaft (561), a drive gear (562), a drive sprocket (563), a transmission gear (564), and a transmission sprocket (565). The drive shaft (561) is rotatably installed in the mounting cover (11) and fixedly connected to the rotating shaft of the drive motor (55). The drive gear (562) and the drive sprocket (563) are both fixedly connected to the drive shaft (561). The transmission gear (564) is fixedly connected to the periphery of the rotating disk (532). The transmission sprocket (565) is fixedly connected to the periphery of the drive seat (544). The drive gear (562) and the transmission gear (564) are meshed. The drive sprocket (563) and the transmission sprocket (565) are chain-driven through a chain.

2. A dual resistance rowing machine according to claim 1 wherein: The wave simulation component (4) is installed on the top of the mounting cover (11), the resistance adjustment mechanism is installed inside the mounting cover (11), the drive device (3) is installed on the mounting bracket (12), and the front end of the mounting bracket (12) extends above the wave simulation component (4).

3. A dual-resistance rowing machine according to claim 2, characterized in that: The water wave simulation component (4) includes a water storage pan (41), a sealing cover (42), a mounting shaft (43), and a drive propeller (44). The water storage pan (41) is fixedly installed on the top of the mounting cover (11), the sealing cover (42) is sealed and fixed on the top of the water storage pan (41), and the mounting shaft (43) is rotatably installed at the axis of the water storage pan (41) and the sealing cover (42). The connecting shaft (51) and the mounting shaft (43) are concentrically fixed. The drive propeller (44) includes multiple sets arranged inside the water storage pan (41), and each set of drive propellers (44) is fixed on the mounting shaft (43) in a ring array.

4. A dual-resistance rowing machine according to claim 2, characterized in that: The sliding assembly includes a foot pedal (21), a sliding guide rail (22), and a sliding seat (23). The foot pedal (21) and the sliding guide rail (22) are both fixed to the mounting base (1) and arranged on the rear side of the mounting cover (11). The sliding seat (23) is slidably mounted on the sliding guide rail (22), and a seat cushion is fixedly mounted on the upper surface of the sliding seat (23).

5. A dual-resistance rowing machine according to claim 3, characterized in that: The drive device (3) includes a drive shaft (31), a ratchet (32), a pawl (33), a spring mechanism (34), a traction disc (35), a traction belt (36), and a handle (37). The drive shaft (31) and ratchet (32) are rotatably mounted on the mounting bracket (12) and are arranged concentrically. The spring mechanism (34) is mounted on the drive shaft (31). The ratchet (32) is arranged around the drive shaft (31). A mounting plate (311) is fixedly connected to the pawl (33), which includes multiple sets and is rotatably mounted on the mounting plate (311). The pawl (33) is engaged with the ratchet (32). A spring (331) is also mounted on the pawl (33). The traction plate (35) is fixedly mounted on the drive shaft (31). One end of the traction belt (36) is wound around the traction plate (35) and the other end is fixedly connected to a handle (37). The mounting shaft (43) is poweredly connected to the ratchet (32).

6. A dual-resistance rowing machine according to claim 5, characterized in that: The ratchet (32) is fixedly connected to the periphery of a first synchronous pulley (322), and a second synchronous pulley (431) is fixedly connected to the mounting shaft (43). The first synchronous pulley (322) and the second synchronous pulley (431) are driven by a synchronous belt.

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