Hydromagnetic double-resistance rowing machine

Abstract

The utility model relates to the technical field of fitness equipment, and provides a water-magnetic double-resistance rowing machine which comprises a rack, a guide rail, a sliding base, a foot supporting face, a water tank, a connecting shaft, a magnetic assembly and a winding assembly, the guide rail is arranged on the rack, the sliding base is connected to the guide rail in a sliding mode, and the foot supporting face is arranged on the rack and used for allowing feet to abut against; the water tank is arranged on the rack, and rotating paddles are arranged in the water tank; the connecting shaft is rotatably connected to the rack and is coaxially connected with the rotating paddle; the magnetic assembly comprises an aluminum disc, magnets and a mounting frame, the aluminum disc is arranged on the connecting shaft, the mounting frame is arranged on the rack, the magnets are arranged on the mounting frame, the magnets are arranged on the two sides of the aluminum disc, and the aluminum disc is used for cutting magnetic induction lines; the winding assembly comprises a handle, a winding disc and a pullback device. The rowing machine has the effect of enriching the resistance providing modes of the rowing machine.

Description

Technical Field

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

[0002] A rowing machine, also known as a rowing machine, rowing boat machine, or paddle machine, is a fitness device that simulates rowing on land. Rowing machines are effective in strengthening the muscles of the legs, waist, upper limbs, chest, and back. With each stroke, the upper limbs, lower limbs, waist, abdomen, and back complete a full contraction and extension, achieving a full-body aerobic exercise effect. It is especially beneficial for people with excess fat in the waist, abdomen, and upper arms, providing unexpected body-shaping results. Current rowing machines can be categorized based on the method of resistance they provide: air resistance rowing machines, magnetic resistance rowing machines, friction resistance rowing machines, hydraulic resistance rowing machines, and water resistance rowing machines.

[0003] Among them, the magnetic resistance rowing machine controls the amount of resistance through magnetic force. The working principle of the magnetic resistance rowing machine is based on the phenomenon of electromagnetic induction: by changing the current intensity of the electromagnet, the strength of the magnetic field is adjusted, thereby generating eddy currents in the metal flywheel and creating resistance. When the user pulls the paddle, the flywheel rotates in the magnetic field, and the conductive material on its surface cuts the magnetic field lines, generating induced currents (eddy currents). The interaction between the eddy currents and the magnetic field produces braking force, making it difficult for the flywheel to rotate. Adjusting the current of the electromagnet changes the strength of the magnetic field, thus controlling the amount of resistance and achieving adjustment of the exercise intensity.

[0004] Regarding the aforementioned technologies, current magnetic resistance rowing machines only have magnetic resistance and not water resistance, thus failing to provide users with the realistic sound and feel of rowing. Therefore, improvements are needed. Utility Model Content

[0005] To enrich the ways in which rowing machines provide resistance, this application provides a water-magnetic dual-resistance rowing machine.

[0006] The water-magnetic dual-resistance rowing device provided in this application adopts the following technical solution:

[0007] A water-magnetic dual-resistance rowing device includes a frame, a guide rail, a slide, a foot support surface, a water tank, a connecting shaft, a magnetic component, and a winding component. The guide rail is disposed on the frame, the slide is slidably connected to the guide rail, and the foot support surface is disposed on the frame and is used for the feet to rest against.

[0008] The water tank is mounted on the frame and has a rotating blade inside; the connecting shaft is rotatably connected to the frame and coaxially connected to the rotating blade; the magnetic component includes an aluminum disk, a magnet, and a mounting bracket, the aluminum disk is mounted on the connecting shaft, the mounting bracket is mounted on the frame, the magnet is mounted on the mounting bracket, and the magnet is provided on both sides of the aluminum disk, the aluminum disk being used to cut magnetic field lines;

[0009] The winding assembly includes a handle, a winding reel, and a pull-back mechanism. The winding reel is rotatably connected to the frame and connected to the connecting shaft, and is used to drive the connecting shaft to rotate. The handle is located on the frame and connected to the winding reel via a rope, and is used to pull the winding reel to rotate. The pull-back mechanism is coaxially arranged with the winding reel and is used to control the winding reel to return to its original position.

[0010] By employing the above technical solution, during use, the user sits on the slide with their feet resting against the foot support surface, and exercises by pulling the handles. Pulling the handles outward causes the winding disc to rotate, which in turn causes the connecting shaft and the aluminum disc to rotate synchronously. As the aluminum disc rotates, the magnetic field generated by the eddy currents interacts with the magnetic field of the external magnet, forming an Ampere force. This Ampere force is always in the opposite direction to the rotation of the aluminum disc, thus generating a resistance torque that hinders the rotation of the aluminum disc. When the eddy currents flow within the aluminum disc, Joule heating is generated due to the resistance of the conductor, converting mechanical energy into heat energy. During this process, the kinetic energy applied by the rower is continuously consumed through electromagnetic interactions, creating a continuous feeling of resistance.

[0011] When rowers want to experience the sound and feeling of paddling, they can fill the water tank with the appropriate amount of water. The rotating shaft drives the paddle blades, creating a rowing motion through the resistance of the water tank and the elastic resistance of the pullback mechanism. When the rope needs to return to its original position, the elastic restoring force of the pullback mechanism causes the winding disc to rotate in the opposite direction, winding the rope again for another stretching exercise.

[0012] By combining magnetic resistance and water resistance, a variety of rowing machines can provide resistance, allowing users to experience different resistance methods according to their actual needs.

[0013] Preferably, two water tanks are symmetrically arranged, and the two ends of the connecting shaft are respectively connected to the rotating blades in the two water tanks, with the aluminum disc located between the two water tanks.

[0014] By adopting the above technical solution, two symmetrical water tanks are located on the left and right sides of the rowing machine, with even weight distribution. When rowing, the rotating blades in the water tanks on both sides generate resistance at the same time, so that the frame is balanced by force, reducing the risk of deformation and improving the stability of the equipment. Even in high-intensity training, it can remain stable and reduce the safety hazards caused by shaking.

[0015] Preferably, the two water tanks are connected to each other by a connecting pipe, which is located at the end of the water tank closest to the ground; one of the water tanks is also provided with a water inlet, and a water inlet plug is provided at the water inlet.

[0016] By adopting the above technical solution, the connecting pipe connects the two water tanks, ensuring that the water volume in both tanks remains consistent at all times, thereby guaranteeing the rotational balance of the left and right paddles and the consistency of resistance. The presence of the water inlet plug allows the user to easily inject an appropriate volume of water into the tank, thus generating corresponding resistance and ensuring the rowing machine's training effect. Simultaneously, a drain outlet can be installed at the bottom of the water tank to drain the water inside.

[0017] Preferably, it also includes a mesh cover, which is arc-shaped and positioned between the two water tanks.

[0018] By adopting the above technical solution, the mesh cover conceals the area between the two water tanks, making it appear as if there is only one water tank, which is a concealed double water tank design.

[0019] Preferably, it further includes an electric motor and a mounting shaft, the mounting shaft being located between the two water tanks and parallel to the connecting shaft; the mounting bracket is rotatably connected to the mounting shaft, and the electric motor is connected to the mounting bracket via a connecting rope and is used to control the rotation of the mounting bracket.

[0020] By adopting the above technical solution, an electric motor is a device that converts electrical energy into mechanical energy, and its main function is to provide a power source for various equipment. A drum shaft is connected to the output shaft of the electric motor. When the electric motor is energized, it drives the drum shaft to rotate, thereby winding the connecting rope onto the drum. Since one end of the connecting rope is connected to the mounting frame, after the connecting rope has been wound to a certain length, the connecting rope can drive the mounting frame to rotate around the mounting shaft, thereby changing the relative position of the magnet and the aluminum disc, and thus changing the magnetic flux density at the aluminum disc, achieving resistance adjustment to adapt to training needs of different intensities.

[0021] When the electric motor reverses, the spool will release the wire, increasing the length of the connecting rope between the electric motor and the mounting bracket. Under its own weight, the mounting bracket can also rotate around the mounting shaft.

[0022] Preferably, the guide rail is provided with a plurality of limiting pads, the limiting pads are located on the moving path of the slide, the slide is located between each of the limiting pads, and the limiting pads are used to limit the moving range of the slide.

[0023] By adopting the above technical solution, the presence of the limiting pad can form a rigid blocking boundary, ensuring that the slide always moves within the effective range of the guide rail, avoiding the slide from leaving the guide rail due to excessive force or loss of control, which could cause damage to the equipment or safety accidents such as user falls or collisions.

[0024] Preferably, it also includes front leg tubes and rear leg tubes, which are respectively connected to both ends of the frame and are used to support the machine on the ground.

[0025] By adopting the above technical solution, the front and rear leg tubes are supported on the ground together, so that the entire rowing machine can be placed stably on the ground.

[0026] Preferably, a pair of rollers are rotatably connected to the front foot tube.

[0027] By adopting the above technical solution, when the entire rowing machine needs to be moved, the user can slightly lift the side with the rear leg tubes, causing the rollers on the front leg tubes to contact the ground, and then push the entire rowing machine. The rollers roll on the ground, thus changing the position of the rowing machine. Compared to relying on two people to move the rowing machine, the rolling method reduces the difficulty of moving the rowing machine, allowing one person to operate it.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] (1) By setting up a water tank, connecting shaft and magnetic components, the rotation of the connecting shaft can drive the rotating blade and aluminum disc to rotate, thereby generating corresponding water resistance or magnetic resistance, so that users can experience two different resistance methods of training on one rowing machine.

[0030] (2) By setting an electric motor and a mounting shaft, when the electric motor is powered on, it can drive the connecting rope to be wound for a certain length and drive the mounting frame to rotate around the mounting shaft, thereby changing the relative position of the magnet and the aluminum disk, and thus changing the magnetic flux density at the aluminum disk, thereby achieving the adjustment of resistance.

[0031] (3) By setting rollers, the presence of rollers makes it easy for the entire rowing machine to move on the ground, so that users can move the rowing machine to a suitable position for exercise. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the rowing device in the embodiments of this application;

[0033] Figure 2 This is a partial structural schematic diagram of the rowing device in the embodiments of this application;

[0034] Figure 3 This is an exploded schematic diagram of the two rotating blades in an embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the structure of the magnetoresistive component in the embodiments of this application;

[0036] Figure 5 This is a structural schematic diagram of the rowing device from another perspective in the embodiments of this application;

[0037] Figure 6 This is an exploded schematic diagram of the mesh cover and water tank in the embodiments of this application.

[0038] Reference numerals: 1. Frame; 2. Guide rail; 3. Slide; 4. Foot support surface; 5. Water tank; 6. Connecting shaft; 7. Magnetic assembly; 71. Aluminum disc; 72. Magnet; 73. Mounting bracket; 8. Winding assembly; 81. Handle; 82. Winding disc; 83. Pullback device; 9. Raised bar; 10. Raised dot; 11. Connecting pipe; 12. Rotating blade; 13. Bearing; 14. Sealing ring seat; 15. Limiting pad; 16. Front foot tube; 17. Rear foot tube; 18. Roller; 19. Adjustable foot pad; 20. Mesh cover; 21. Water inlet plug; 22. Electric motor; 23. Mounting shaft. Detailed Implementation

[0039] The technical solutions of this application will now be described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can be embodied in many different forms and is not limited to the embodiments described herein.

[0040] In the representation of this application, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0042] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection; a detachable connection; an integral part; or a mechanical connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0043] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Without conflict, those skilled in the art can combine and integrate the different embodiments or examples shown in this application, as well as the features of those embodiments or examples.

[0044] This application discloses a hydro-magnetic dual-resistance rowing device. (Refer to...) Figures 1 to 3 The water-magnetic dual-resistance rowing machine includes a frame 1, a guide rail 2, a slide 3, a foot support surface 4, a water tank 5, a connecting shaft 6, a magnetic component 7, and a winding component 8. The frame 1 serves as the carrier, with a front foot tube 16 and a rear foot tube 17 fixedly connected to both ends, both supporting the machine on the ground. The guide rail 2 is fixedly connected to the frame 1 and located between the front foot tube 16 and the rear foot tube 17, with the slide 3 slidably connected to the guide rail 2. The foot support surface 4 is fixedly connected to the frame 1 and close to the front foot tube 16, providing support for both feet. Several protrusions 9 and protrusions 10 are fixedly connected to the foot support surface 4. The design of the protrusions 9 and protrusions 10 makes the foot support surface 4 uneven, increasing the friction between the foot support surface 4 and the user's feet, thereby improving the safety of the exercise.

[0045] Two water tanks 5 are symmetrically arranged on the side of the mounting frame 1 near the front foot tube 16. Each water tank 5 has a rotating blade 12 rotatably connected inside, and the two rotating blades 12 are connected together by a connecting shaft 6. In this embodiment, the two water tanks 5 are interconnected by a connecting pipe 11, located at the end of the water tank 5 closest to the ground, to ensure water flow between the two tanks. The connecting pipe 11 connects the two water tanks 5, ensuring consistent water volume in both tanks, thereby guaranteeing the rotational balance and consistent resistance of the left and right blades. One of the water tanks 5 also has a water inlet with a water inlet plug 21 made of rubber. The water inlet plug 21 allows the user to easily add an appropriate volume of water to the water tank 5. The plug 21 is removed before filling and replaced afterward. Simultaneously, a drain outlet can be provided at the bottom of the water tank 5 to facilitate water drainage.

[0046] Combination Figure 4The magnetic component 7 includes an aluminum disk 71, a magnet 72, and a mounting bracket 73. The aluminum disk 71 is fixedly mounted on the connecting shaft 6 and located between the two water tanks 5. The mounting bracket 73 is mounted on the frame 1, and multiple magnets 72 are fixed on the mounting bracket 73. There are magnets 72 on both sides of the aluminum disk 71, and the aluminum disk 71 is used to cut magnetic field lines.

[0047] The winding assembly 8 includes a handle 81, a winding reel 82, and a return puller 83. The winding reel 82 is rotatably connected to the frame 1 and connected to the connecting shaft 6. The winding reel 82 drives the connecting shaft 6 to rotate. In this embodiment, the winding reel 82 is connected to the connecting shaft 6 via a timing belt. The handle 81 is mounted on the frame 1 and connected to the winding reel 82 via a rope. The handle 81 is used to pull the winding reel 82 to rotate. The return puller 83 is coaxially arranged with the winding reel 82 and is used to control the return of the winding reel 82.

[0048] In use, the user sits on the slide seat 3 with their feet resting on the foot support surface 4, and exercises by pulling on the handles 81. Pulling on the handles 81 causes the winding disc 82 to rotate, which in turn causes the connecting shaft 6 and the aluminum disc 71 to rotate synchronously. As the aluminum disc 71 rotates, the magnetic field generated by the eddy currents interacts with the magnetic field of the external magnet 72, forming an Ampere force. The direction of this Ampere force is always opposite to the direction of rotation of the aluminum disc 71, thus generating a resistance torque that hinders the rotation of the aluminum disc 71. When the eddy currents flow in the aluminum disc 71, they generate Joule heat due to the resistance of the conductor, converting mechanical energy into heat energy. During this process, the kinetic energy applied by the rower is continuously consumed through electromagnetic interaction, creating a continuous feeling of resistance.

[0049] When rowers want to experience the sound and feeling of paddling, they can fill the water tank 5 with appropriate amount of water. The rotating shaft 6 drives the rotating paddle 12 to rotate, allowing for rowing-style exercise under the resistance of the water tank 5 and the elastic resistance of the pullback mechanism 83. When the rope needs to be reset, the elastic restoring force of the pullback mechanism 83 causes the winding disc 82 to rotate in the opposite direction to wind the rope again, allowing for another rope lengthening exercise.

[0050] Combination Figure 5 and Figure 6Specifically, the connecting shaft 6 is connected to two water tanks 5 via bearings 13. Each water tank 5 is fixedly equipped with a sealing ring seat 14, which is located around the bearing 13. The sealing ring seat 14 improves the sealing performance at the bearing 13's mounting position, preventing water leakage from the water tank 5. A mesh cover 20 is installed between the two water tanks 5, and the mesh cover 20 is arc-shaped. The mesh cover 20 conceals the area between the two water tanks 5, making it appear as if there is only one water tank 5, a concealed double-tank design. Several limiting pads 15 are fixedly connected to the guide rail 2. The limiting pads 15 are located on the movement path of the slide 3, and the slide 3 is located between the limiting pads 15. The limiting pads 15 restrict the movement range of the slide 3. The presence of the limiting pad 15 can form a rigid blocking boundary, ensuring that the slide 3 always moves within the effective range of the guide rail 2, and preventing the slide 3 from leaving the guide rail 2 due to excessive force or loss of control, which could cause damage to the equipment or safety accidents such as user falls or bumps.

[0051] The frame 1 is equipped with an electric motor 22 and a mounting shaft 23. The mounting shaft 23 is located between the two water tanks 5 and is parallel to the connecting shaft 6. The mounting bracket 73 is rotatably connected to the mounting shaft 23, which serves as the pivot of the mounting bracket 73. The electric motor 22 is connected to the mounting bracket 73 via a connecting rope (not shown in the figure) and is used to control the rotation of the mounting bracket 73. The electric motor 22 is a device that converts electrical energy into mechanical energy, and its main function is to provide a power source for various devices. A drum shaft is connected to the output shaft of the electric motor 22. When the electric motor 22 is energized, it drives the drum shaft to rotate, thereby winding the connecting rope onto the drum. Since one end of the connecting rope is connected to the mounting bracket 73, after the connecting rope has been wound to a certain length, the connecting rope can drive the mounting bracket 73 to rotate around the mounting shaft 23, thereby changing the relative position of the magnet 72 and the aluminum disk 71, and thus changing the magnetic flux density at the aluminum disk 71, achieving resistance adjustment to adapt to training needs of different intensities.

[0052] In addition, a pair of rollers 18 are rotatably connected to the front leg tube 16, with the axles of the two rollers 18 being parallel to each other. A pair of adjusting feet 19 are also installed on the ground-facing side of the rear leg tube 17; the adjusting feet 19 are screws. Users can adjust the rowing machine's height, balance, and stability by adjusting the feet 19. Adjustment is achieved by rotating the screws to change the extension length.

[0053] When the rowing machine needs to be moved, the user can slightly lift the side with the rear leg tube 17 so that the roller 18 of the front leg tube 16 contacts the ground, and then push the entire rowing machine. The roller 18 rolls on the ground, thus changing the position of the rowing machine. Compared to relying on two people to move the rowing machine, the rolling method of the roller 18 reduces the difficulty of moving the rowing machine, achieving the effect of saving effort, and can be done by one person.

[0054] The implementation principle of the water-magnetic dual-resistance rowing device in this application embodiment is as follows: When in use, the human body sits on the slide seat 3 with both feet resting on the foot support surface 4, and exercises by pulling the handle 81 with both hands. When the handle 81 is pulled outward, it drives the winding disc 82 to rotate, which in turn drives the connecting shaft 6, aluminum disc 71 and rotating blade 12 to rotate synchronously.

[0055] When the aluminum disk 71 rotates, the magnetic field generated by the eddy currents interacts with the magnetic field of the external magnet 72, forming an Ampere force. The direction of this Ampere force is always opposite to the direction of rotation of the aluminum disk 71, thereby generating a resistive torque that opposes the rotation of the aluminum disk 71, thus achieving magnetic reluctance.

[0056] When the rotating blade 12 rotates, the water resistance is achieved through a rowing motion exercise under the resistance of the liquid in the water tank 5 and the elastic resistance of the pullback device 83. When the rope needs to be reset, the elastic restoring force of the pullback device 83 causes the winding disc 82 to rotate in the opposite direction to wind the rope for another rope lengthening exercise.

[0057] By combining magnetic resistance and water resistance, a variety of rowing machines can provide resistance, allowing users to experience different resistance methods according to their actual needs.

[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hydromagnetic dual-resistance rowing device, characterized in that, It includes a frame (1), a guide rail (2), a slide (3), a foot support surface (4), a water tank (5), a connecting shaft (6), a magnetic assembly (7), and a winding assembly (8). The guide rail (2) is mounted on the frame (1), the slide (3) is slidably connected to the guide rail (2), and the foot support surface (4) is mounted on the frame (1) and is used for the feet to rest against. The water tank (5) is mounted on the frame (1) and has a rotating blade (12) inside; the connecting shaft (6) is rotatably connected to the frame (1) and coaxially connected to the rotating blade (12); the magnetic component (7) includes an aluminum disk (71), a magnet (72) and a mounting bracket (73). The aluminum disk (71) is mounted on the connecting shaft (6), the mounting bracket (73) is mounted on the frame (1), and the magnet (72) is mounted on the mounting bracket (73). The aluminum disk (71) has magnets (72) on both sides. The aluminum disk (71) is used to cut magnetic lines of force. The winding assembly (8) includes a handle (81), a winding disc (82), and a pull-back device (83). The winding disc (82) is rotatably connected to the frame (1) and connected to the connecting shaft (6). The winding disc (82) is used to drive the connecting shaft (6) to rotate. The handle (81) is located on the frame (1) and connected to the winding disc (82) via a rope. The handle (81) is used to pull the winding disc (82) to rotate. The pull-back device (83) is coaxially arranged with the winding disc (82) and is used to control the winding disc (82) to reset.

2. The hydromagnetic dual-resistance rowing device according to claim 1, characterized in that, Two water tanks (5) are symmetrically arranged. The two ends of the connecting shaft (6) are respectively connected to the rotating blades (12) inside the two water tanks (5). The aluminum disk (71) is located between the two water tanks (5).

3. The hydromagnetic dual-resistance rowing device according to claim 2, characterized in that, The two water tanks (5) are connected to each other by a connecting pipe (11), which is located at the end of the water tank (5) near the ground; one of the water tanks (5) is also provided with a water inlet, and a water inlet plug (21) is provided at the water inlet.

4. The hydromagnetic dual-resistance rowing device according to claim 2, characterized in that, It also includes a mesh cover (20), which is arc-shaped and located between the two water tanks (5).

5. A hydromagnetic dual-resistance rowing device according to claim 2, characterized in that, It also includes an electric motor (22) and a mounting shaft (23), the mounting shaft (23) being located between the two water tanks (5) and parallel to the connecting shaft (6); the mounting bracket (73) is rotatably connected to the mounting shaft (23), the electric motor (22) is connected to the mounting bracket (73) via a connecting rope and is used to control the rotation of the mounting bracket (73).

6. A hydromagnetic dual-resistance rowing device according to claim 2, characterized in that, The guide rail (2) is provided with a plurality of limiting pads (15), the limiting pads (15) are located on the moving path of the slide (3), the slide (3) is located between each of the limiting pads (15), and the limiting pads (15) are used to limit the moving range of the slide (3).

7. A hydromagnetic dual-resistance rowing device according to claim 1, characterized in that, It also includes a front leg tube (16) and a rear leg tube (17), which are respectively connected to the two ends of the frame (1) and are both used to support the ground.

8. A hydromagnetic dual-resistance rowing device according to claim 7, characterized in that, A pair of rollers (18) are rotatably connected to the front foot tube (16).

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