Rowing machine with adjustable resistance

Abstract

The utility model provides a resistance-adjustable rowing machine, and belongs to the technical field of rowing machines. The resistance-adjustable rowing machine comprises a base, a support is arranged at one end of the base, a transmission box is arranged on the support, a rotary drum is rotatably arranged at one end in the transmission box, a handle is arranged on the other side of the transmission box, a pull-back assembly is rotatably arranged in the transmission box, a belt is wound on the pull-back assembly, and the free end of the belt is connected with the handle after bypassing the rotary drum. A magnet assembly and an adjusting assembly are further arranged in the transmission box, the magnet assembly is used for generating magnetic resistance with the rotating pull-back assembly, and the adjusting assembly is used for adjusting the distance between the magnet assembly and the pull-back assembly so as to generate different magnetic resistances. According to the resistance-adjustable rowing machine, the pulling force effect is achieved through the water resistance, the overall resistance of the rowing machine can be adjusted at any time through the adjustable magnetic resistance, combination of the water resistance and the magnetic resistance is achieved, and the flexibility and the exercise effect of the rowing machine are improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of rowing machines, and particularly relates to a rowing machine with adjustable resistance. BACKGROUND

[0002] The rowing machine is also known as rowing machine, rowing machine, rowing machine, ergometer, racing boat machine, land rowing machine and indoor rowing machine. The rowing machine is a machine for simulating water racing boat movement for training purposes.

[0003] In the prior art, there are mainly two kinds of water resistance rowing machines. One is not adjustable resistance, and the other is to adjust the resistance by changing the water volume in the water tank. However, this resistance adjustment method has a large adjustment range, so different users cannot adjust it at any time according to their own exercise needs, which affects the exercise progress of the users, and causes the rowing machine to have low flexibility and poor exercise effect.

[0004] In view of the above problems, a new rowing machine with adjustable resistance is provided. Content of the utility model

[0005] The present disclosure aims to overcome the shortcomings of the prior art, provide a rowing machine with adjustable resistance, realize the combination of water resistance and magnetic resistance, adjust the overall resistance of the rowing machine at any time, and improve the flexibility and exercise effect of the rowing machine.

[0006] To achieve the above-mentioned utility model purposes, the present disclosure adopts the following technical solutions:

[0007] A rowing machine with adjustable resistance comprises a base, a support is arranged at one end of the base, a transmission box is arranged on the support, a rotating drum is rotatably arranged at one end in the transmission box, a handle is arranged on the other side of the transmission box, a pullback assembly is rotatably arranged in the transmission box, a belt is wound on the pullback assembly, and the free end of the belt is connected with the handle after passing through the rotating drum.

[0008] A magnet assembly and an adjusting assembly are further arranged in the transmission box. The magnet assembly is used to generate magnetic resistance with the rotating pullback assembly. The adjusting assembly is used to adjust the distance between the magnet assembly and the pullback assembly to generate different sizes of magnetic resistance.

[0009] In an exemplary embodiment of the present disclosure, the pullback assembly comprises a first rotating shaft, the first rotating shaft is rotatably arranged on the bottom wall of the transmission box, a rotating wheel and a first pulley are fixedly arranged on the first rotating shaft, and the belt is wound on the rotating wheel.

[0010] In an exemplary embodiment of the present disclosure, the magnet assembly comprises:

[0011] A second rotating shaft is rotatably installed in the transmission box, the second rotating shaft is parallel to the first rotating shaft, a metal rotating disc and a second belt pulley are fixed on the second rotating shaft, and the second belt pulley is connected with the first belt pulley through a belt transmission.

[0012] A magnet is arranged on one side of the metal rotating disc, the magnet is used to generate a magnetic resistance with the rotating metal rotating disc, one end of the magnet is rotatably connected with a mounting seat, and the mounting seat is arranged on an inner wall of one side of the transmission box.

[0013] In an example embodiment of the present disclosure, a mounting frame is arranged in the transmission box, the mounting frame is located between the first rotating shaft and the second rotating shaft, and the first rotating shaft is rotatably connected with the mounting frame.

[0014] At least one side frame of the mounting frame is provided with a guide groove extending in an axial direction, one end of the second rotating shaft penetrates through at least one guide groove, and the second rotating shaft can move towards or away from the first rotating shaft along the guide groove.

[0015] In an example embodiment of the present disclosure, the adjusting assembly comprises a wire-drawing motor and a brake wire.

[0016] The wire-drawing motor is arranged on an inner wall at a bottom end of the transmission box, one end of the brake wire is connected with the other end of the magnet through a fixed pipe, the other end of the brake wire is connected with an output end of the wire-drawing motor, and the fixed pipe is fixedly arranged in the transmission box.

[0017] In an example embodiment of the present disclosure, a self-generating device is further arranged in the transmission box, and the self-generating device is connected with one of the wire-drawing assembly and the magnet assembly through a belt transmission.

[0018] In an example embodiment of the present disclosure, a water tank is arranged at a top end of the base, the water tank is located below the transmission box, a rotating rod is rotatably arranged on a bottom wall of the water tank, and paddles are fixed on the rotating rod.

[0019] A top end of the rotating rod extends out of the water tank, a bottom end of the first rotating shaft extends out of the transmission box, and the bottom end of the first rotating shaft is connected with the top end of the rotating rod.

[0020] In an example embodiment of the present disclosure, a water inlet is arranged at a top end of the water tank.

[0021] In an example embodiment of the present disclosure, a pedal is arranged at a top end of the base, the pedal is located on one side of the support, and the pedal is inclined towards the support.

[0022] An electronic watch is arranged on the pedal and electrically connected with the adjusting assembly and the self-generating device.

[0023] In an exemplary embodiment of the present disclosure, the other side of the base is provided with a slide rail extending in the axial direction, and a seat cushion is slidingly installed on the slide rail.

[0024] Advantages of the present disclosure:

[0025] (1) The present disclosure achieves the main pulling effect through water resistance, generates magnetic resistance on the rotating return assembly through the magnet assembly, changes the distance between the magnet assembly and the return assembly through the adjusting assembly, thereby adjusting the size of the magnetic resistance, achieving the adjustment of the overall resistance of the rowing machine at any time, achieving the combination of water resistance and magnetic resistance, and improving the flexibility and exercise effect of the rowing machine.

[0026] (2) The present disclosure can adjust the overall resistance of the rowing machine without adjusting the water amount in the water tank, thereby improving the convenience of using the rowing machine.

[0027] (3) The present disclosure connects the self-generating device with one of the return assembly and the magnet assembly through a belt transmission, and makes the self-generating device generate electricity by pulling the handle, thereby achieving the power supply for the electronic watch without providing an external power supply, and improving the convenience of using the rowing machine. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0029] Figure 1 In an embodiment of the present disclosure, the overall schematic diagram of the rowing machine with adjustable resistance is shown in the figure.

[0030] Figure 2 In an embodiment of the present disclosure, the internal structure of the rowing machine with adjustable resistance is shown in the figure. Figure 1

[0031] Figure 3 In an embodiment of the present disclosure, the internal structure of the rowing machine with adjustable resistance is shown in the figure. Figure 2

[0032] Figure 4 In an embodiment of the present disclosure, the internal structure of the rowing machine with adjustable resistance is shown in the figure. Figure 3

[0033] Figure 1 ​​​For an embodiment of the present disclosure, a structural schematic diagram of the mounting frame.

[0034] Reference Signs List:

[0035] 1, base; 2, support; 3, transmission box; 4, rotating drum; 5, handle; 6, electronic watch; 7, pullback assembly; 8, belt; 9, magnet assembly; 10, adjusting assembly; 11, first rotating shaft; 12, rotating wheel; 13, first belt pulley; 14, second rotating shaft; 15, metal rotating disc; 16, second belt pulley; 17, magnet; 18, mounting seat; 19, mounting frame; 20, guide groove; 21, pull wire motor; 22, brake wire; 23, fixed tube; 24, self-generating device; 25, water tank; 26, rotating rod; 27, paddle; 28, water inlet; 29, pedal; 30, slide rail; 31, cushion; 32, spring. DETAILED DESCRIPTION

[0036] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings. Example embodiments, however, can be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the specification. It will be understood that, although the terms first, second, third etc. can be used herein to describe various elements / regions, these elements / regions should not be limited by these terms since such elements / regions can be labeled in another suitable manner. In addition, the drawings are only schematic and the dimensions are not necessarily to scale.

[0037] Although relative terms such as "upper", "lower", etc. are used herein to describe one component's relationship to another component in the figures, such terms are used only for convenience and are not to be construed as limiting the application to the examples shown in the figures. It is to be understood that if the device of the icon is turned over, the components described as being "upper" would then be "lower". When a structure is "on" another structure, it can mean that the structure is formed integrally with the other structure or that the structure is "directly" on the other structure or that the structure is "indirectly" on the other structure via another structure.

[0038] The terms "one", "a", "an", "the", and "at least one" are used to indicate that "one or more" of the identified elements / constituents / etc. are present; the terms "include" and "has" are used to indicate an open-ended inclusion of the elements / constituents / etc. listed after these terms; the terms "first", "second", and "third" etc. are used only as labels, and do not imply a limitation on the number of elements / constituents / etc. to which these terms refer.

[0039] An adjustable-resistance rowing machine is provided in an embodiment of the present disclosure, referring to Figure 2 and Figure 1, including the base 1, the base 1 one end is provided with the support 2, the support 2 is provided with the transmission box 3, the transmission box 3 inside one end is rotatably provided with the rotating drum 4, the transmission box 3 other side is provided with the handle 5, the transmission box 3 inside rotatably provided with the pullback assembly 7, the pullback assembly 7 is wound with the belt 8, the free end of the belt 8 is connected with the handle 5 after passing through the rotating drum 4;Transmission box 3 is also provided with the magnet assembly 9 and the adjusting assembly 10, the magnet assembly 9 is used to generate magnetic resistance with the rotating pullback assembly 7, the adjusting assembly 10 is used to adjust the distance between the magnet assembly 9 and the pullback assembly 7, to generate different size magnetic resistance.

[0040] In the embodiment of the present disclosure, the resistance-adjustable rowing machine is composed of a base 1, a support 2, a transmission box 3, a rotating drum 4, a handle 5, a pullback assembly 7, a belt 8, a magnet assembly 9 and an adjusting assembly 10, wherein the support 2 is arranged at the top end of one side of the base 1, the transmission box 3 is installed on the support 2, the rotating drum 4 is rotatably installed at one end in the transmission box 3, an opening is formed at the top end of the transmission box 3, the top end of the rotating drum 4 extends out of the transmission box 3 through the opening, the handle 5 is located at the side of the transmission box 3 away from the rotating drum 4, the pullback assembly 7 is rotatably installed on the inner wall of the transmission box 3, one end of the belt 8 is connected to the handle 5, the other end of the belt 8 extends into the transmission box 3 through the opening and is wound on the pullback assembly 7 after passing through the rotating drum 4, and the handle 5 drives the pullback assembly 7 to rotate by pulling the handle 5; the magnet assembly 9 and the adjusting assembly 10 are installed in the transmission box 3, and the magnet assembly 9 is located at one side of the pullback assembly 7, the magnet assembly 9 generates magnetic resistance on the rotating pullback assembly 7, and the distance between the magnet assembly 9 and the pullback assembly 7 is adjusted by the adjusting assembly 10, so as to adjust the size of the magnetic resistance between the magnet assembly 9 and the pullback assembly 7.

[0041] Compared with the existing resistance adjustment method by water flow change, the resistance-adjustable rowing machine generates magnetic resistance on the rotating pullback assembly by the magnet assembly, changes the distance between the magnet assembly and the pullback assembly by the adjusting assembly, adjusts the size of the magnetic resistance, adjusts the overall resistance of the rowing machine at any time, realizes the combination of water resistance and magnetic resistance, and improves the flexibility and exercise effect of the rowing machine.

[0042] In one embodiment of the present disclosure, referring to Figure 1 The cross section of the support 2 is L-shaped, the vertical frame of the L-shaped support 2 is connected to the top end of the base 1, the transmission box 3 is installed on the horizontal frame of the L-shaped support 2, and the transmission box 3 extends along the horizontal frame.

[0043] In one embodiment of the present disclosure, referring to Figure 1 The base 1 includes two first supports parallel to each other, and the two first supports are connected by a plurality of connection rods arranged at intervals.

[0044] In one embodiment of the present disclosure, referring to Figures 2 to 4The support 2 comprises two second supports which are parallel to each other, and the cross sections of the two second supports are both L-shaped. The transmission box 3 is detachably installed between the two second supports.

[0045] In one embodiment of the present disclosure, referring to Figures 2 to 4 The pull-back assembly 7 comprises a first rotating shaft 11 which is rotatably arranged on the bottom wall of the transmission box 3. A rotating wheel 12 and a first belt pulley 13 are fixedly arranged on the first rotating shaft 11, and the belt 8 is wound around the rotating wheel 12. In this way, the pulling handle 5 can be pulled to rotate the rotating wheel 12 through the belt 8.

[0046] In one embodiment of the present disclosure, referring to Figure 2 The magnet assembly 9 comprises a second rotating shaft 14 which is rotatably arranged in the transmission box 3 and is parallel to the first rotating shaft 11. A metal rotating disc 15 and a second belt pulley 16 are fixedly arranged on the second rotating shaft 14. The second belt pulley 16 is connected to the first belt pulley 13 through a belt transmission. A magnet 17 is arranged on one side of the metal rotating disc 15. The magnet 17 is used to generate a magnetic resistance with the rotating metal rotating disc 15. One end of the magnet 17 is rotatably connected to a mounting seat 18 which is arranged on the inner wall of one side of the transmission box 3. In this way, the magnet 17 can generate a magnetic resistance with the rotating metal rotating disc 15, thereby generating a magnetic resistance to the pull-back assembly 7, achieving a magnetic resistance to the user pulling the handle 5, and achieving an exercise effect.

[0047] It can be understood that the pulling handle 5 can rotate the rotating wheel 12 through the belt 8, the rotating wheel 12 can rotate the first rotating shaft 11 and the first belt pulley 13, the first belt pulley 13 can rotate the second belt pulley 16 through the belt, and the second belt pulley 16 can rotate the second rotating shaft 14 and the metal rotating disc 15. The magnet 17 can generate a magnetic resistance with the rotating metal rotating disc 15. The magnetic resistance generated by the metal rotating disc 15 is transmitted to the first rotating shaft 11 and the rotating wheel 12 through the belt transmission between the first belt pulley 13 and the second belt pulley 16, thereby generating a magnetic resistance to the user pulling the handle 5.

[0048] It can be understood that the rotating wheel 12 and the metal rotating disc 15 are located on one side, and the first belt pulley 13 and the second belt pulley 16 are located on the other side.

[0049] In one example, the rotating wheel 12 is located above the first belt pulley 13, and the metal rotating disc 15 is located above the second belt pulley 16.

[0050] In another example, the rotating wheel 12 is located below the first belt pulley 13, and the metal rotating disc 15 is located below the second belt pulley 16.

[0051] Optionally, the metal rotating disc 15 is located between the rotating wheel 12 and the first belt pulley 13.

[0052] Optionally, the metal rotating disc 15 is an aluminum disc or an iron disc.

[0053] Optionally, the cross section of the magnet 17 is U-shaped, and the opening of the U-shaped magnet 17 faces the metal rotating disc 15, and the metal rotating disc 15 can extend into the U-shaped magnet 17.

[0054] In an embodiment of the present disclosure, referring to Figure 5 and Figures 2 to 4 , the mounting frame 19 is arranged in the transmission box 3, is located between the first rotating shaft 11 and the second rotating shaft 14, and is rotationally connected with the first rotating shaft 11. At least one side frame of the mounting frame 19 is provided with an axially extending guide slot 20, and one end of the second rotating shaft 14 passes through at least one guide slot 20, so that the second rotating shaft 14 can move towards or away from the first rotating shaft 11 along the guide slot 20. In this way, the distance between the first rotating shaft 11 and the second rotating shaft 14 can be adjusted, so as to adjust the distance between the first belt pulley 13 and the second belt pulley 16, improve the transmission effect of the first belt pulley 13 and the second belt pulley 16, and improve the transmission effect of the magnetic resistance.

[0055] Optionally, the first rotating shaft 11 is rotationally connected with the top frame of the mounting frame 19.

[0056] In an example, the top frame of the mounting frame 19 is provided with an axially extending guide slot 20, the bottom end of the second rotating shaft 14 extends into the mounting frame 19 through the guide slot 20, and the metal rotating disc 15 and the second belt pulley 16 are located in the mounting frame 19.

[0057] In another example, the top frame and the bottom frame of the mounting frame 19 are respectively provided with axially extending guide slots 20, and the bottom end of the second rotating shaft 14 passes through the mounting frame 19 through the two guide slots 20, and the metal rotating disc 15 and the second belt pulley 16 are located in the mounting frame 19.

[0058] Optionally, the guide slot 20 can be a slot with one open end or a slot with both ends closed.

[0059] In an embodiment of the present disclosure, the guide slot 20 movably provides a moving block, the outer walls on both sides of the moving block are respectively provided with axially extending clamping grooves, the moving block is clamped in the guide slot 20 through the clamping grooves, the second rotating shaft 14 is rotationally mounted on the moving block and passes through the moving block, the moving block can reciprocate in the guide slot 20 to drive the second rotating shaft 14 to reciprocate in the guide slot 20 to move towards or away from the first rotating shaft 11, and at least one threaded hole in communication with the clamping groove is formed in the top end of each side of the moving block, a bolt can abut against the mounting frame 19 through the threaded hole and is threadedly connected in the threaded hole to fix the position of the moving block.

[0060] In an embodiment of the present disclosure, referring to Figure 4The adjusting assembly 10 comprises a pull wire motor 21 and a brake wire 22. The pull wire motor 21 is arranged on the inner wall of the bottom end of the transmission box 3. One end of the brake wire 22 is connected with the other end of the magnet 17 through a fixing tube 23, and the other end of the brake wire 22 is connected with the output end of the pull wire motor 21. The fixing tube 23 is fixedly arranged in the transmission box 3. In this way, the distance between the magnet 17 and the metal rotating disc 15 can be adjusted, and the magnetic resistance generated by the magnet 17 on the rotating metal rotating disc 15 can be adjusted.

[0061] Optionally, one end of a spring 32 is connected with the other end of the magnet 17, and the other end of the spring 32 is connected with the inner wall of one side of the transmission box 3. In this way, the magnet 17 can move stably, and the distance between the magnet 17 and the metal rotating disc 15 can be adjusted stably.

[0062] Optionally, at least one mounting plate is arranged on the inner wall of the bottom end of the transmission box 3, and a through hole is formed in the mounting plate. The fixing tube 23 passes through the through hole and is fixedly arranged on the mounting plate.

[0063] It can be understood that the pull wire motor 21 drives the magnet 17 to rotate around the connection between the magnet 17 and the mounting base 18 through the brake wire 22, so that the magnet 17 approaches or moves away from the metal rotating disc 15, drives the spring 32 to compress or stretch, and the magnet 17 generates a magnetic resistance on the metal rotating disc 15. When the distance between the magnet 17 and the metal rotating disc 15 decreases, the magnetic resistance increases, and when the distance between the magnet 17 and the metal rotating disc 15 increases, the magnetic resistance decreases, so that the magnetic resistance can be adjusted.

[0064] In an embodiment of the present disclosure, referring to Figures 1 to 4 The transmission box 3 further comprises a self-power generation device 24, and the self-power generation device 24 is connected with one of the pull-back assembly 7 and the magnet assembly 9 through a belt transmission. In this way, the energy generated by the user during exercise can be stored for the use of the rowing machine, and the convenience of using the rowing machine can be improved.

[0065] In an embodiment of the present disclosure, the self-power generation device 24 comprises a power generation motor, a third belt pulley and a storage battery. The power generation motor is arranged on the inner wall of the bottom end of the transmission box 3. The output end of the power generation motor is upwardly provided with the third belt pulley. The third belt pulley is connected with one of the first belt pulley 13 and the second belt pulley 16 through a belt transmission. The storage battery is arranged in the transmission box 3 and is electrically connected with the power generation motor.

[0066] Optionally, the third belt pulley is connected with the first belt pulley 13 through a belt transmission.

[0067] Optionally, the third belt pulley is connected with the second belt pulley 16 through a belt transmission.

[0068] In an embodiment of the present disclosure, referring to Figure 1The base 1 is provided with a water tank 25 at the top end, the water tank 25 is located below the transmission box 3, a rotating rod 26 is rotatably arranged on the bottom wall of the water tank 25, and a paddle 27 is fixedly arranged on the rotating rod 26; the top end of the rotating rod 26 extends out of the water tank 25, the bottom end of the first rotating shaft 11 extends out of the transmission box 3, and is connected with the top end of the rotating rod 26. In this way, by pulling the handle 5, the paddle 27 is rotated in the water tank 25, the resistance generated by the water in the water tank 25 is used to achieve the exercise effect, and the effect of combining water resistance and magnetic resistance is achieved, thereby improving the flexibility and exercise effect of the rowing machine.

[0069] Optionally, the first rotating shaft 11 and the rotating rod 26 are connected through a shaft coupling.

[0070] In an embodiment of the present disclosure, referring to Figures 1 to 4 The water tank 25 is provided with a water inlet 28 at the top end. In this way, the amount of water in the water tank 25 can be increased or decreased, and the water resistance of the rowing machine can be adjusted.

[0071] In an embodiment of the present disclosure, referring to Figures 1 to 4 The base 1 is provided with a pedal 29 at the top end, the pedal 29 is located on one side of the support 2, and the pedal 29 is inclined to the support 2, and the upper surface of the pedal 29 is symmetrically provided with two foot pedals; the other side of the base 1 is provided with an axially extending slide rail 30 at the top end, and a seat cushion 31 is slidably installed on the slide rail 30. In this way, the user sits on the seat cushion 31, the feet are placed on the foot pedals, and the handle 5 is pulled to exercise through the rowing machine.

[0072] Optionally, the position of the foot pedal can be adjusted to facilitate use by different users.

[0073] In an embodiment of the present disclosure, referring to Figure 2 The pedal 29 is provided with an electronic watch 6, and the electronic watch 6 is electrically connected with the adjusting assembly 10 and the self-generating device 24. In this way, the electronic watch 6 can be powered without providing an external power supply, energy consumption is reduced, and the convenience of using the rowing machine is improved.

[0074] Optionally, the electronic watch 6 is electrically connected with the pull wire motor 21, and the operation of the pull wire motor 21 is controlled through the electronic watch 6 to adjust the distance between the magnet 17 and the metal turntable 15.

[0075] Optionally, the electronic watch 6 is electrically connected with the battery, and the battery supplies power to the electronic watch 6.

[0076] In an embodiment of the present disclosure, a coil spring is installed on the first rotating shaft 11, so that after the handle 5 is pulled and released during exercise, the first rotating shaft 11 reversely rotates, so that the belt 8 is rewound on the rotating wheel 12, and the handle 5 is conveniently pulled outward next time.

[0077] In one embodiment of the present disclosure, the rotary drum 4 is located at one end of the transmission box 3 away from the pedal 29, and the handle 5 is located at one side of the pedal 29 away from the transmission box 3.

[0078] In one embodiment of the present disclosure, a fixed plate is arranged at one end of the transmission box 3 away from the pedal 29, the rotary drum 4 is rotatably arranged on the fixed plate, a guide wheel is arranged below the rotary drum 4 and is rotatably arranged on the fixed plate, and the belt 8 is wound on the rotary wheel 12 after passing through the rotary drum 4 and the guide wheel. In this way, the movement of the belt 8 can be facilitated.

[0079] In one embodiment of the present disclosure, referring to Figure 3 and Figure 4 , the magnet assembly 9 is located between the rotary drum 4 and the pullback assembly 7, the adjusting assembly 10 is located at one side of the rotary drum 4 away from the magnet assembly 9, and the spring 32 is connected to the inner wall of the transmission box 3 close to the rotary drum 4.

[0080] In another embodiment of the present disclosure, referring to Figures 1 to 5 , the magnet assembly 9 is located at one side of the pullback assembly 7 away from the rotary drum 4, the adjusting assembly 10 is located at one side of the rotary drum 4 away from the magnet assembly 9, and the spring 32 is connected to the inner wall of the transmission box 3 close to the handle 5.

[0081] In one embodiment of the present disclosure, referring to ​ , the working process of the rowing machine with adjustable resistance is briefly described as follows:

[0082] In use of the present disclosure, the user sits on the cushion 31, steps on the foot pedal, pulls the handle 5, drives the rotary wheel 12 through the belt 8, drives the first rotary shaft 11 to rotate, and then drives the rotary rod 26 and the paddle 27 to rotate in the water tank 25, so that the water in the water tank 25 flows to generate resistance, and the exercise effect is achieved by using the resistance; the first rotary shaft 11 drives the first pulley 13 to rotate, drives the second pulley 16 to rotate through the belt transmission between the first pulley 13 and the second pulley 16, and drives the second rotary shaft 14 and the metal turntable 15 to rotate, so that the magnet 17 generates magnetic resistance with the rotating metal turntable 15, and the combination of water resistance and magnetic resistance is achieved; when it is necessary to adjust the magnetic resistance, the pull wire motor 21 is started, the pull wire motor 21 tightens or loosens the brake wire 22, the brake wire 22 drives the magnet 17 to rotate around the connection between the magnet 17 and the mounting seat 18, so that the spring 32 is stretched or compressed, the magnet 17 is away from or close to the metal turntable 15, when the distance between the magnet 17 and the metal turntable 15 increases, the magnetic resistance decreases, when the distance between the magnet 17 and the metal turntable 15 decreases, the magnetic resistance increases, so that the magnetic resistance of the magnet 17 and the metal turntable 15 is adjusted.

[0083] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A rowing machine with adjustable resistance, characterized in that, Includes a base (1), a bracket (2) is provided at one end of the base (1), a transmission box (3) is provided on the bracket (2), a rotating cylinder (4) is rotatably provided at one end of the transmission box (3), a handle (5) is provided on the other side of the transmission box (3), a pull-back assembly (7) is rotatably provided inside the transmission box (3), a belt (8) is wound on the pull-back assembly (7), and the free end of the belt (8) passes around the rotating cylinder (4) and is connected to the handle (5); The transmission box (3) is also provided with a magnet assembly (9) and an adjustment assembly (10). The magnet assembly (9) is used to generate magnetic resistance with the rotating pull-back assembly (7). The adjustment assembly (10) is used to adjust the distance between the magnet assembly (9) and the pull-back assembly (7) to generate different magnitudes of magnetic resistance.

2. The rowing machine with adjustable resistance according to claim 1, characterized in that, The pullback assembly (7) includes a first rotating shaft (11), which is rotatably mounted on the bottom wall of the transmission box (3). A wheel (12) and a first pulley (13) are fixed on the first rotating shaft (11), and the belt (8) is wound around the wheel (12).

3. The rowing device with adjustable resistance according to claim 2, characterized in that, The magnet assembly (9) includes: The second rotating shaft (14) is rotatably installed in the transmission box (3). The second rotating shaft (14) is parallel to the first rotating shaft (11). A metal turntable (15) and a second pulley (16) are fixed on the second rotating shaft (14). The second pulley (16) and the first pulley (13) are connected by belt drive. A magnet (17) is disposed on one side of the metal turntable (15). The magnet (17) is used to generate magnetic resistance with the rotating metal turntable (15). One end of the magnet (17) is rotatably connected to the mounting base (18). The mounting base (18) is disposed on the inner wall of one side of the transmission box (3).

4. The rowing machine with adjustable resistance according to claim 3, characterized in that, The transmission box (3) is provided with a mounting frame (19), which is located between the first rotating shaft (11) and the second rotating shaft (14), and the first rotating shaft (11) is rotatably connected to the mounting frame (19); At least one side of the mounting frame (19) is provided with a guide groove (20) extending axially. One end of the second rotating shaft (14) passes through at least one of the guide grooves (20). The second rotating shaft (14) can move closer to or away from the first rotating shaft (11) along the guide groove (20).

5. The rowing machine with adjustable resistance according to claim 3, characterized in that, The adjustment assembly (10) includes a pull-wire motor (21) and a brake cable (22). The pull-wire motor (21) is mounted on the inner wall of the bottom end of the transmission box (3). One end of the brake wire (22) passes through the fixed tube (23) and is connected to the other end of the magnet (17). The other end of the brake wire (22) is connected to the output end of the pull-wire motor (21). The fixed tube (23) is fixedly mounted inside the transmission box (3).

6. The rowing machine with adjustable resistance according to claim 1, characterized in that, The transmission box (3) is also equipped with a self-generating device (24), which is connected to one of the pull-back assembly (7) and the magnet assembly (9) via belt drive.

7. The rowing machine with adjustable resistance according to claim 2, characterized in that, A water tank (25) is provided at the top of the base (1). The water tank (25) is located below the transmission box (3). A rotating rod (26) is rotatably provided on the bottom wall of the water tank (25). A paddle (27) is fixed on the rotating rod (26). The top end of the rotating rod (26) extends out of the water tank (25), and the bottom end of the first rotating shaft (11) extends out of the transmission box (3) and is connected to the top end of the rotating rod (26).

8. The rowing machine with adjustable resistance according to claim 7, characterized in that, The water tank (25) is provided with a water inlet (28) at the top.

9. The rowing machine with adjustable resistance according to claim 6, characterized in that, The base (1) is provided with a pedal (29) at its top. The pedal (29) is located on one side of the bracket (2) and is inclined toward the bracket (2). An electronic watch (6) is provided on the pedal (29), and the electronic watch (6) is electrically connected to the adjustment component (10) and the self-generating device (24).

10. The rowing device with adjustable resistance according to claim 1, characterized in that, The other top of the base (1) is provided with a slide rail (30) extending axially, and a seat cushion (31) is slidably mounted on the slide rail (30).

Images