Large-resistance rowing machine
Through the combination of variable speed transmission structure and self-generating device, the problem of insufficient resistance of existing rowing machines is solved, providing greater resistance output and keeping the equipment compact, meeting user needs and reducing manufacturing costs.
Patent Information
- Application Number
- CN202420339122.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-02-23
AI Technical Summary
The existing rowing machine has a small resistance range and cannot meet the higher needs of fitness workers. Increased resistance requires increasing the number or size of magnet pieces, resulting in complex structures and high manufacturing costs.
Using variable speed transmission structure and self-generating device, the distance of magnetoresistive parts is controlled by magnetron control components to achieve resistance regulation, providing greater resistance while keeping the equipment compact and convenient to use.
It achieves greater resistance output, meets user training needs, keeps the equipment structure compact, reduces manufacturing costs, and improves the convenience of use through self-generating devices without external power supply.
Smart Images
Figure CN222357933U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fitness equipment, in particular to a high-resistance rowing machine. Background Art
[0002] The rowing machine is a piece of fitness equipment used to simulate rowing scenarios for the purpose of fitness training. The rowing machine has a good strengthening effect on the muscles of the upper limbs, chest, back, waist, and legs. With each row, the whole body will complete a complete contraction and stretch, which can achieve an aerobic exercise effect for the muscles of the whole body. Therefore, more and more people choose rowing machines as exercise equipment.
[0003] The rope resistance range of rowing machines currently on the market is relatively small. They use a single-sided magnet to generate magnetic force, and a wire motor pulls the magnet to adjust the resistance by affecting the rotation of the metal disk under the influence of magnetic resistance. The resistance of rowing machines using this method is generally only 22 to 25 kilograms, and the higher one does not exceed 30 kilograms, which cannot meet the higher needs of fitness enthusiasts. If the resistance is increased by increasing the number or size of the magnets, the difficulty of adjusting the magnetic resistance increases, and it is necessary to increase the power of the wire motor or add other higher-power driving devices. The overall size of the rowing machine will inevitably increase, the structure will be complex, and the manufacturing cost will increase. Utility Model Content
[0004] In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide a high-resistance rowing machine to meet the needs of users.
[0005] To achieve the above object, the utility model provides a high resistance rowing machine, comprising
[0006] The frame includes a first mounting plate and a second mounting plate arranged in parallel and a mounting space defined by the first mounting plate and the second mounting plate.
[0007] A drive device, including a handle and a drive assembly,
[0008] The first resistance device comprises a main shaft, a water resistance device or a wind resistance device, the upper end of the main shaft is rotatably matched with the first mounting plate, the lower end of the main shaft extends out of the second mounting plate and is connected to the water resistance device or the wind resistance device, the handle is suitable for driving the main shaft through the driving assembly, and then driving the water resistance device or the wind resistance device,
[0009] The magnetic resistance device is arranged in the installation space, and includes a first fixed shaft, a first magnetic resistance component and a second magnetic resistance component arranged in parallel, and a magnetic control component. The main shaft is suitable for reducing the speed of the transmission to the first magnetic resistance component through a variable speed transmission structure. The first magnetic resistance component rotates around the first fixed shaft relative to the second magnetic resistance component. The magnetic control component is suitable for controlling the distance between the first magnetic resistance component and the second magnetic resistance component to achieve resistance regulation.
[0010] Preferably, the transmission ratio of the variable speed transmission structure is not less than 6.
[0011] As a preferred embodiment: the speed change transmission structure includes a second fixed shaft, a first pulley group and a second pulley group, the first pulley group includes a first driving wheel, a first driven wheel and a first belt suitable for transmission connection between the first driving wheel and the first driven wheel, the second pulley group includes a second driving wheel, a second driven wheel and a second belt suitable for transmission connection between the second driving wheel and the second driven wheel, the first driving wheel is fixedly connected to the main shaft and driven to rotate by the driving device, the first driven wheel and the second driving wheel are pivotally connected to the second fixed shaft for synchronous rotation, and the second driven wheel is pivotally connected to the first fixed shaft and drives the first magnetic resistance member to rotate synchronously.
[0012] Preferably, the first driven wheel is coaxially arranged with the second driving wheel and fixedly connected or integrally formed along their axial direction, the second driven wheel is fixedly connected or integrally formed with the sleeve along their axial direction, the sleeve is pivotally connected to the first fixed shaft, and the first magnetic resistance element is coaxially assembled on the sleeve.
[0013] Preferably, the magnetic control component includes a wire pulling motor and a return spring, the wire pulling motor includes a wire pulling, the return spring is sleeved on the first fixed shaft, and one end of the return spring abuts against the second magnetic resistance element, the wire pulling motor is suitable for driving the second magnetic resistance element to slide axially along the fixed shaft away from the first magnetic resistance element through the wire pulling, and the return spring is suitable for driving the second magnetic resistance element to approach the first magnetic resistance element.
[0014] Preferably, the upper end of the first fixed shaft and / or the upper end of the second fixed shaft are fixed by screws passing through the first mounting plate, and the lower end of the first fixed shaft and / or the lower end of the second fixed shaft include a third mounting plate, and the third mounting plate is tightly attached to the second mounting plate and fixed by screws.
[0015] Preferably, the driving assembly comprises a take-up pulley, a plurality of reversing pulleys and a driving belt, the take-up pulley is fixedly connected to the main shaft, the reversing pulleys are respectively provided with annular grooves circumferentially, one end of the driving belt is connected to the handle, and the other end of the driving belt passes through the annular grooves in sequence and is connected to the take-up pulley.
[0016] As a preferred embodiment: it also includes a self-generating device, which includes a generator and a control member, and the generator includes a motor shaft. The main shaft is suitable for driving the generator through a third pulley group to power the wire pulling motor and the control member, and the third pulley group includes a third driving wheel pivotally connected to the main shaft, a third driven wheel fixedly connected to the motor shaft, and a third belt suitable for transmitting and connecting the third driving wheel and the third driven wheel.
[0017] Preferably, the main shaft is arranged at the center of the installation space, and the installation space is evenly divided into a first installation space and a second installation space arranged along its length direction; the first fixed shaft and the magnetron assembly are arranged in the first installation space; and the second fixed shaft and the generator are arranged in the second installation space.
[0018] Preferably, the take-up wheel comprises a circumferentially arranged take-up groove, an upper wheel disc and a lower wheel disc suitable for axially limiting the width of the take-up groove, and the upper wheel disc or the lower wheel disc is suitable for constituting the third driving wheel.
[0019] Preferably, the first resistance device also includes a reset assembly arranged below the third driving wheel, the reset assembly includes a reset shell and a coil spring, the reset shell is fixedly mounted on the second mounting plate and defines a space for accommodating the coil spring, the main shaft is rotatably matched with the reset shell, one end of the coil spring is connected to the main shaft, and the other end of the coil spring is connected to the reset shell.
[0020] The beneficial effects of the utility model are:
[0021] By setting a variable speed transmission structure to realize the speed reduction transmission between the driving device and the first magnetic resistance element, it can not only provide greater resistance for the user to meet the user's exercise needs, but also keep the overall structure of the rowing machine compact and light, with a small footprint and low manufacturing cost. Furthermore, by setting a self-generating device, magnetic resistance regulation can be achieved without an external power supply, further reducing the requirements for the exercise venue and making it convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 The utility model provides a structural schematic diagram of a high-resistance rowing machine.
[0023] Figure 2 The utility model provides a cross-sectional schematic diagram of a high-resistance rowing machine.
[0024] Figure 3 This is a schematic structural diagram of the driving device, the first resistance device, the magnetic resistance device and the self-generating device provided by the utility model.
[0025] Figure 4It is a schematic structural diagram of the driving device, the first resistance device, the magnetic resistance device and the self-generating device from another angle.
[0026] Figure 5 It is a cross-sectional schematic diagram of a first fixed shaft and a magnetic resistance device mounted on the first fixed shaft provided by the utility model.
[0027] In the figure, a first mounting plate 101, a second mounting plate 102, an installation space 103, a handle 104, a take-up pulley 105, a reversing pulley 106, a driving belt 107, a main shaft 108, a water resistance device 109, a first fixed shaft 110, a first magnetic resistance member 111, a second magnetic resistance member 112, a second fixed shaft 113, a first driving wheel 114, a first driven wheel 115, a first belt 116, a second driving wheel 117, a second Driven wheel 118, second belt 119, bushing 120, wire motor 121, reset spring 122, wire 123, generator 124, operating member 125, third driving wheel 126, third driven wheel 127, third belt 128, belt taking-up groove 129, upper wheel disc 130, lower wheel disc 131, screw 132, third mounting plate 133, reset housing 134, coil spring 135, water tank 136, impeller 137. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0029] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.
[0030] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0031] like Figure 1-5A high resistance rowing machine includes a frame, a driving device, a first resistance device, a magnetic resistance device and a self-generating device. The frame includes two parallel first mounting plates 101 and second mounting plates 102 and a mounting space 103 defined by the first mounting plates 101 and the second mounting plates 102. The driving device includes a handle 104 and a driving assembly. The driving assembly includes a belt-receiving wheel 105, a plurality of reversing wheels 106 and a driving belt 107. The first resistance device includes a main shaft 108 and a water resistance device 109. The water resistance device 109 includes a water tank 136 and an impeller 137 built in the water tank 136. The upper end of the main shaft 108 is rotatably matched with the first mounting plate 101, the lower end of the main shaft 108 extends out of the second mounting plate 102 and is connected to the impeller 137, the take-up pulley 105 is fixed to the main shaft 108, the reversing wheels 106 are respectively provided with annular grooves in the circumference, one end of the driving belt 107 is connected to the handle 104, and the other end of the driving belt 107 passes through the annular groove in turn and is connected to the take-up pulley 105. The handle 104 is suitable for driving the main shaft 108 through the driving assembly, thereby driving the water resistance device 109. The magnetic resistance device is arranged in the installation space 103, including a first fixed shaft 110, a first magnetic resistance member 111 and a second magnetic resistance member 112 arranged in parallel, and a magnetic control component. The main shaft 108 is suitable for speed reduction transmission to the first magnetic resistance member 111 through a variable speed transmission structure. The transmission ratio of the variable speed transmission structure is 8. The first magnetic resistance member 111 rotates around the first fixed shaft 110 relative to the second magnetic resistance member 112. The magnetic control component is suitable for controlling the distance between the first magnetic resistance member 111 and the second magnetic resistance member 112 to achieve resistance regulation.
[0032] In this embodiment, the speed transmission structure includes a second fixed shaft 113, a first pulley group and a second pulley group, the first pulley group includes a first driving wheel 114, a first driven wheel 115 and a first belt 116 suitable for transmission connection between the first driving wheel 114 and the first driven wheel 115, the second pulley group includes a second driving wheel 117, a second driven wheel 118 and a second belt 119 suitable for transmission connection between the second driving wheel 117 and the second driven wheel 118, the first driving wheel 114 is fixedly connected to the main shaft 108 and driven to rotate by the driving device, the first driven wheel 115 and the second driving wheel 117 are pivoted to the second fixed shaft 113 and rotate synchronously, and the second driven wheel 118 is pivoted to the first fixed shaft 110 and drives the first magnetic resistance member 111 to rotate synchronously. The first driven wheel 115 and the second driving wheel 117 are coaxially arranged and integrally formed along their axial direction. The second driven wheel 118 is fixedly connected or integrally formed with the sleeve 120 along their axial direction. The sleeve 120 is pivotally connected to the first fixed shaft 110 , and the first magnetic resistance member 111 is coaxially assembled on the sleeve 120 .
[0033] In this embodiment, the magnetic control component includes a wire pulling motor 121 and a reset spring 122. The wire pulling motor 121 includes a wire pulling 123. The reset spring 122 is sleeved on the first fixed shaft 110, and one end of the reset spring 122 abuts against the second magnetic resistance component 112. The wire pulling motor 121 is suitable for driving the second magnetic resistance component 112 to slide axially along the fixed axis away from the first magnetic resistance component 111 through the wire pulling 123. The reset spring 122 is suitable for driving the second magnetic resistance component 112 to approach the first magnetic resistance component 111.
[0034] In this embodiment, the self-generating device includes a generator 124 and a control member 125, the generator 124 includes a motor shaft, the main shaft 108 is suitable for driving the generator 124 through the third belt 128 wheel group to supply power to the wire drawing motor 121 and the control member 125, the third belt 128 wheel group includes a third driving wheel 126 pivotally connected to the main shaft 108, a third driven wheel 127 fixed to the motor shaft, and a third belt 128 suitable for transmission connection between the third driving wheel 126 and the third driven wheel 127. The take-up wheel 105 includes a circumferentially arranged take-up groove 129, an upper wheel disc 130 and a lower wheel disc 131 suitable for limiting the width of the take-up groove 129 along the axial direction, and the lower wheel disc 131 is suitable for constituting the third driving wheel 126.
[0035] Furthermore, the main shaft 108 is arranged at the center of the installation space 103, and the installation space 103 is evenly divided into a first installation space and a second installation space arranged along the length direction thereof, the first fixed shaft 110 and the magnetron assembly are arranged in the first installation space, and the second fixed shaft 113 and the generator 124 are arranged in the second installation space. The upper end of the first fixed shaft 110 and the upper end of the second fixed shaft 113 are fixed by screws 132 penetrating the first mounting plate 101, and the lower end of the first fixed shaft 110 and the lower end of the second fixed shaft 113 include a third mounting plate 133, and the third mounting plate 133 is closely attached to the second mounting plate 102 and fixed by screws 132.
[0036] In this embodiment, the first resistance device also includes a reset assembly arranged below the third driving wheel 126, the reset assembly includes a reset shell 134 and a coil spring 135, the reset shell 134 is fixedly mounted on the second mounting plate 102 and defines a space for accommodating the coil spring 135, the main shaft 108 is rotatably matched with the reset shell 134, one end of the coil spring 135 is connected to the main shaft 108, and the other end of the coil spring 135 is connected to the reset shell 134.
[0037] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.
Claims
1. A high resistance rowing machine, characterized in that: include The frame includes a first mounting plate and a second mounting plate arranged in parallel and a mounting space defined by the first mounting plate and the second mounting plate. A drive device, including a handle and a drive assembly, The first resistance device comprises a main shaft, a water resistance device or a wind resistance device, the upper end of the main shaft is rotatably matched with the first mounting plate, the lower end of the main shaft extends out of the second mounting plate and is connected to the water resistance device or the wind resistance device, the handle is suitable for driving the main shaft through the driving assembly, and then driving the water resistance device or the wind resistance device, The magnetic resistance device is arranged in the installation space, and includes a first fixed shaft, a first magnetic resistance component and a second magnetic resistance component arranged in parallel, and a magnetic control component. The main shaft is suitable for reducing the speed of the transmission to the first magnetic resistance component through a variable speed transmission structure. The first magnetic resistance component rotates around the first fixed shaft relative to the second magnetic resistance component. The magnetic control component is suitable for controlling the distance between the first magnetic resistance component and the second magnetic resistance component to achieve resistance regulation.
2. A high resistance rowing machine according to claim 1, characterized in that: The transmission ratio of the speed-changing transmission structure is not less than 6.
3. A high resistance rowing machine according to claim 2, characterized in that: The speed transmission structure includes a second fixed shaft, a first pulley group and a second pulley group, the first pulley group includes a first driving wheel, a first driven wheel and a first belt suitable for transmission connection between the first driving wheel and the first driven wheel, the second pulley group includes a second driving wheel, a second driven wheel and a second belt suitable for transmission connection between the second driving wheel and the second driven wheel, the first driving wheel is fixedly connected to the main shaft and driven to rotate by the driving device, the first driven wheel and the second driving wheel are pivotally connected to the second fixed shaft for synchronous rotation, and the second driven wheel is pivotally connected to the first fixed shaft and drives the first magnetic resistance member to rotate synchronously.
4. A high resistance rowing machine according to claim 3, characterized in that: The first driven wheel and the second driving wheel are coaxially arranged and fixedly connected or integrally formed along their axial direction; the second driven wheel and the sleeve are fixedly connected or integrally formed along their axial direction; the sleeve is pivotally connected to the first fixed shaft; and the first magnetic resistance member is coaxially assembled on the sleeve.
5. A high resistance rowing machine according to claim 4, characterized in that: The magnetic control component includes a wire pulling motor and a return spring, the wire pulling motor includes a wire pulling wire, the return spring is sleeved on the first fixed shaft, and one end of the return spring abuts against the second magnetic resistance element, the wire pulling motor is suitable for driving the second magnetic resistance element to slide axially along the fixed shaft away from the first magnetic resistance element through the wire pulling wire, and the return spring is suitable for driving the second magnetic resistance element to approach the first magnetic resistance element.
6. A high resistance rowing machine according to claim 5, characterized in that: The driving assembly includes a take-up wheel, a plurality of reversing wheels and a driving belt. The take-up wheel is fixedly connected to the main shaft. The reversing wheels are respectively provided with annular grooves in the circumference. One end of the driving belt is connected to the handle, and the other end of the driving belt passes through the annular grooves in sequence and is connected to the take-up wheel.
7. A high resistance rowing machine according to claim 6, characterized in that: It also includes a self-generating device, which includes a generator and a control member. The generator includes a motor shaft. The main shaft is suitable for driving the generator through a third pulley group to power the wire pulling motor and the control member. The third pulley group includes a third driving wheel pivotally connected to the main shaft, a third driven wheel fixedly connected to the motor shaft, and a third belt suitable for transmitting and connecting the third driving wheel and the third driven wheel.
8. The high resistance rowing machine according to claim 7, characterized in that: The main shaft is arranged at the center of the installation space, dividing the installation space evenly into a first installation space and a second installation space arranged along its length direction; the first fixed shaft and the magnetron assembly are arranged in the first installation space, and the second fixed shaft and the generator are arranged in the second installation space.
9. The high resistance rowing machine according to claim 8, characterized in that: The belt-receiving wheel comprises a belt-receiving groove arranged in a circumferential direction, an upper wheel disc and a lower wheel disc which are suitable for limiting the width of the belt-receiving groove in an axial direction, and the upper wheel disc or the lower wheel disc is suitable for constituting the third driving wheel.
10. The high resistance rowing machine according to claim 9, characterized in that: The first resistance device also includes a reset assembly arranged below the third driving wheel, the reset assembly includes a reset shell and a coil spring, the reset shell is fixedly mounted on the second mounting plate and defines a space for accommodating the coil spring, the main shaft is rotatably matched with the reset shell, one end of the coil spring is connected to the main shaft, and the other end of the coil spring is connected to the reset shell.