Multifunctional magnetic control exercise bicycle

Abstract

The invention relates to a multifunctional magnetic control exercise bicycle, and belongs to the technical field of fitness equipment, the multifunctional magnetic control exercise bicycle comprises a base, a flywheel module, an intelligent control module and a magnetic resistance control module, the flywheel module, the intelligent control module and the magnetic resistance control module are mounted on the base, and the flywheel module comprises a quick release pedal assembly, a flywheel, a driven wheel, a belt, a generator and a speed reducer; the flywheel drives a first driven wheel and a second driven wheel through belts, the first driven wheel is connected with a speed reducer, the second driven wheel is connected with a generator to generate electricity, and the generator is electrically connected with an intelligent control module to supply power to the intelligent control module. The intelligent control module provides resistance for the flywheel module through the magnetic resistance control module, the quick-release pedal is installed on a flywheel, and the exercise bicycle is switched between a spinning mode and a hill climbing machine mode by adjusting the quick-release pedal, so that different exercises are performed. The intelligent control system has the function of switching the spinning mode and the hill climbing machine mode back and forth, and manual frequent gear shifting is not needed through the magnetic control technology and the intelligent control system.

Description

Technical Field

[0001] This invention belongs to the field of fitness equipment technology, specifically relating to a multifunctional magnetically controlled exercise bike. Background Technology

[0002] In today's fast-paced life, many users, especially office workers, have developed a need for convenient and anytime-and-where exercise. As a result, exercise bikes have become widely used. However, most exercise bikes on the market currently use mechanical resistance adjustment, which is cumbersome and difficult to control quickly and accurately. The fixed pedal design also makes it difficult to adapt to the personalized needs of different users. Furthermore, they have low levels of intelligence and lack connectivity with smart devices, making it impossible to achieve intelligent operations such as data monitoring and remote adjustment. In addition, most existing exercise bikes are large, non-foldable equipment that takes up a lot of space and is not suitable for home or office use. These problems not only affect the user's fitness results and experience but also limit the further development of the exercise bike market.

[0003] Therefore, there is an urgent need in the market for a highly integrated, intelligent, and multi-mode exercise bike to adapt to home or office use and meet users' personalized needs. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a multifunctional magnetic control exercise bike with the ability to switch between a spinning bike mode and a climbing machine mode without the need for complicated tools or cumbersome steps. It also integrates advanced magnetic control technology and an intelligent control system, eliminating the need for frequent manual gear adjustments.

[0005] The technical solution is as follows: A multifunctional magnetically controlled exercise bike includes a base and a flywheel module, an intelligent control module, and a magnetic resistance control module mounted on the base. The flywheel module includes a quick-release pedal assembly, a flywheel, driven wheels, a belt, a generator, and a reducer. The flywheel drives a first driven wheel and a second driven wheel via the belt. The first driven wheel is connected to the reducer, and the second driven wheel is connected to the generator to generate electricity. The generator is electrically connected to the intelligent control module to supply power to it. The intelligent control module provides resistance to the flywheel module through the magnetic resistance control module. The quick-release pedal is mounted on the flywheel, and adjusting the quick-release pedal allows the exercise bike to switch between a spin bike mode and a climbing machine mode for different workouts.

[0006] Furthermore, the base includes a rigid support and a pair of folding legs installed at both ends. Both the folding legs and the rigid support are made of metal and form an I-shape. The folding legs are components that connect two cuboids together by a connector. The cuboids rotate around the connection point with the connector, and the other end of the cuboids has a rounded chamfer. The intelligent control module and the magnetoresistive control module are installed on the rigid support.

[0007] Furthermore, the quick-release pedal assembly includes a pair of guide rails, a pedal, a first crank, a second crank, a slider, and a bearing seat located at both ends of the flywheel; the lower end of the guide rail is fixed to the base; the first crank has pin holes at both ends, the upper pin hole is fixed to the bearing seat above the guide rail via the central shaft, and the lower pin hole is connected to one end of the second crank via a pin, with a first pedal connection port located on the outer side of the second crank at that point; the other end of the second crank is connected to the slider that slides up and down in the guide rail, with a second pedal connection port located on the outer side of the second crank at that point; when the pedal is connected to the first pedal connection port, the exercise bike is in spin bike mode, and pedaling causes the first crank to rotate circumferentially, directly driving the flywheel to rotate; when the pedal is connected to the second pedal connection port, the exercise bike is in climber mode, and pedaling moves up and down, causing the second crank to drive the first crank to rotate, which in turn causes the flywheel to rotate.

[0008] Furthermore, the magnetoresistive control module includes an L-shaped base, a pull cord, a magnetic control plate, and a spring. The magnetic control plate is a long, arc-shaped neodymium iron boron magnet, one end of which is hinged to the upper end of the vertical section of the L-shaped base, and the other end is connected to the pull cord. A spring is provided below the magnetic control plate and in the horizontal section of the L-shaped base. When the intelligent control module controls the pull cord to tighten, the magnetic control plate moves away from the flywheel above it, weakening the magnetic force and thus reducing the resistance. When the intelligent control module controls the pull cord to loosen, the spring causes the magnetic control plate to return to its original position, moving closer to the flywheel above it, strengthening the magnetic force and thus increasing the resistance.

[0009] Furthermore, the intelligent control module includes a microcontroller, a battery, a servo motor, Hall effect sensors, and a BLE Bluetooth module electrically connected to the microcontroller. The battery is connected to a generator and is charged by the generator. There are two Hall effect sensors: one is located on the side of the flywheel, which detects the flywheel speed and the microcontroller calculates the real-time cadence (RPM); the other is located on the quick-release pedal assembly, which detects the pedal position and the microcontroller determines the mode of the magnetic exercise bike. The BLE Bluetooth module receives real-time heart rate data transmitted from the user's mobile device. The servo motor is connected to the magnetoresistive control module via a pull rope. The microcontroller uses a magnetoresistive dual-mode dynamic compensation stepping algorithm to control the movement of the servo motor and adjust the tightening and loosening of the pull rope based on the heart rate data and the cadence data.

[0010] Furthermore, the dual-mode dynamic compensation stepping algorithm combines real-time heart rate transmission via BLE Bluetooth, cadence detected by Hall sensors, and pedal position to identify the exercise mode. The spinning mode uses high-frequency small steps of 1-3 levels / 50ms to match the resistance response requirements of the high-speed rotation of the flywheel and avoid adjustment lag. The climbing machine mode uses low-frequency large steps of 3-5 levels / 100ms to adapt to the mechanical characteristics of low speed and high resistance, balancing adjustment range and stability. Moreover, when the detected heart rate is ≥85% of the maximum heart rate and the cadence is ≤60RPM, the magnetic resistance is automatically reduced; when the detected heart rate is ≤60% of the maximum heart rate and the cadence is ≥100RPM, the magnetic resistance is automatically increased to improve exercise efficiency.

[0011] Furthermore, the servo motor model is SG90, and the microcontroller model is ESP32.

[0012] Furthermore, the intelligent control module is also equipped with indicator lights and a USB interface. The indicator lights have at least two LED beads to display the working status, and the USB interface is used for external power supply.

[0013] Beneficial effects: 1) This invention can quickly switch between exercise bike mode and climbing machine mode by quickly removing the pedals, making it multi-functional. The base can be folded to reduce the footprint, and the device has a high degree of integration, making it suitable for home or office use.

[0014] 2) By connecting to the user's mobile device via Bluetooth module, multiple exercise data can be monitored and accurately recorded in real time during exercise. Intelligent control, combined with real-time heart rate and cadence, enables high-precision adjustment of magnetic resistance, avoiding the cumbersome process of adjusting resistance when using a traditional exercise bike.

[0015] 3) Make full use of the electricity generated during the movement to power the control module, and the excess electricity can also be used for charging mobile phones, etc. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention in the climbing machine mode; Figure 2 This is a structural diagram of the base section; Figure 3 This is a structural diagram of the quick-release pedal assembly. Figure 4 This is a schematic diagram of the magnetoresistive control module. Figure 5 This is a schematic diagram of the overall structure of the present invention in the exercise bike mode.

[0017] Wherein: 1 is the base, 11 is the rigid support, 12 is the folding leg, 12 is the connector, 13 is the flywheel module, 21 is the quick-release pedal assembly, 211 is the guide rail, 212 is the pedal, 213 is the first crank, 214 is the second crank, 215 is the slider, 216 is the bearing seat, 217 is the central shaft, 218 is the first pedal connection port, 219 is the second pedal connection port, 22 is the flywheel, 23 is the first driven wheel, 24 is the second driven wheel, 25 is the belt, 26 is the generator, 27 is the reducer, 3 is the intelligent control module, 4 is the magnetic reluctance control module, 41 is the L-shaped base, 42 is the pull rope, 43 is the magnetic control plate, and 44 is the spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit it. Terms such as "upper," "lower," "front," "rear," "left," "right," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the purpose of describing the invention. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0019] like Figure 1 and Figure 5 The multifunctional magnetically controlled exercise bike shown includes a base 1 and a flywheel module 2, an intelligent control module 3, and a magnetic resistance control module 4 mounted on the base. The flywheel module includes a quick-release pedal assembly 21, a flywheel 22, driven wheels, a belt 25, a generator 26, and a reducer 27. The flywheel drives a first driven wheel 23 and a second driven wheel 24 via the belt. The first driven wheel is connected to the reducer, and the second driven wheel is connected to the generator to generate electricity. The generator is electrically connected to the intelligent control module to supply power. The intelligent control module provides resistance to the flywheel module through the magnetic resistance control module. The quick-release pedal is mounted on the flywheel. By adjusting the quick-release pedal, the exercise bike can switch between a spinning bike mode and a climbing machine mode for different exercises.

[0020] like Figure 2 As shown, the base includes a rigid support 11 and a pair of folding legs 12 respectively installed at both ends. Both the folding legs and the rigid support are made of metal and form an I-shape. The folding legs are components that connect two cuboids together by a connector 13. The cuboids rotate around the connection point with the connector, and the other end of the cuboids has a rounded chamfer. The intelligent control module and the magnetoresistive control module are installed on the rigid support.

[0021] like Figure 4As shown, the quick-release pedal assembly includes a pair of guide rails 211, a pedal 212, a first crank 213, a second crank 214, a slider 215, and a bearing seat 216 disposed at both ends of the flywheel; the lower end of the guide rail is fixed to the base; the first crank has pin holes at both ends, the upper pin hole is fixed to the bearing seat above the guide rail through the central shaft 217, and the lower pin hole is connected to one end of the second crank through a pin, and the outer side of the second crank at this point is provided with a first pedal connection port 218, and the other end of the second crank is connected to the slider that slides up and down in the guide rail, and the outer side of the second crank at this point is provided with a second pedal connection port 219; when the pedal is connected to the first pedal connection port, the exercise bike is in spin bike mode, and stepping on the pedal causes the first crank to rotate in a circular motion, which directly drives the flywheel to rotate; when the pedal is connected to the second pedal connection port, the exercise bike is in climber mode, and stepping on the pedal moves up and down, the second crank drives the first crank to rotate, which in turn causes the flywheel to rotate.

[0022] like Figure 3 As shown, the magnetoresistive control module includes an L-shaped base 41, a pull rope 42, a magnetic control plate 43, and a spring 44. The magnetic control plate is a long, arc-shaped neodymium iron boron magnet, one end of which is hinged to the upper end of the vertical section of the L-shaped base, and the other end is connected to the pull rope. A spring is provided below the magnetic control plate and in the horizontal section of the L-shaped base. When the intelligent control module controls the pull rope to tighten, the magnetic control plate moves away from the flywheel above it, weakening the magnetic force and thus reducing the resistance. When the intelligent control module controls the pull rope to loosen, the spring causes the magnetic control plate to return to its original position and move closer to the flywheel above it, strengthening the magnetic force and thus increasing the resistance.

[0023] The intelligent control module includes a microcontroller, a battery, servo motors, Hall effect sensors, and a BLE Bluetooth module electrically connected to the microcontroller. The battery is connected to a generator for charging. Two Hall effect sensors are used: one located on the side of the flywheel to detect its speed, which the microcontroller then uses to calculate the real-time cadence; the other is located on the quick-release pedal assembly to detect the pedal position, which the microcontroller then uses to determine the mode of the magnetic exercise bike. The BLE Bluetooth module receives real-time heart rate data from the user's mobile device. The servo motors are connected to the magnetoresistive control module via a pull rope. The microcontroller uses a magnetoresistive dual-mode dynamic compensation stepping algorithm to control the servo motor movement and adjust the tension and relaxation of the pull rope based on the heart rate and cadence data. The servo motor model is SG90, and the microcontroller model is ESP32. The intelligent control module also includes indicator lights and a USB interface. The indicator lights have at least two LEDs to display the operating status, and the USB interface is used for external power supply. The dual-mode dynamic compensation stepping algorithm combines real-time heart rate transmission via BLE Bluetooth, cadence detected by Hall sensors, and pedal position to identify the exercise mode. In the spinning mode, a high-frequency, small-step approach of 1-3 levels / 50ms is used to match the resistance response requirements of the high-speed flywheel rotation, avoiding adjustment lag. In the climbing machine mode, a low-frequency, large-step approach of 3-5 levels / 100ms is used to adapt to the mechanical characteristics of low speed and high resistance, balancing adjustment range and stability. Furthermore, when the detected heart rate is ≥85% of the maximum heart rate and the cadence is ≤60RPM, the magnetic resistance is automatically reduced; when the detected heart rate is ≤60% of the maximum heart rate and the cadence is ≥100RPM, the magnetic resistance is automatically increased to improve exercise efficiency.

[0024] Example: In homes and large spaces, the two folding legs of this multi-functional magnetic exercise bike can be unfolded 360 degrees for stable support. In offices and smaller spaces, or when not in use, the folding legs can be retracted, merging 180 degrees with the rigid base, which is also very sturdy. Both placement methods provide excellent support, maximizing the bike's compact size and versatility while maintaining its exercise function.

[0025] The multi-functional magnetic exercise bike exhibits different functions depending on the position of the pedals. When the pedal is inserted into the second pedal connector, stepping on the pedal causes the slider to move the crank up and down in a reciprocating motion, which is the climbing machine mode. When the pedal component is inserted into the first pedal connector, stepping on the pedal causes the crank to move in a circular motion, which is the spin bike mode. The Hall sensor mounted on the frame detects the different positions of the pedals and transmits the signals to the intelligent control module, which determines the mode of the magnetic exercise bike.

[0026] The magnetoresistive control section uses high-precision magnetic materials for its magnetic control plates, enabling more precise control of magnetic resistance and providing finer resistance adjustment to meet the exercise needs of different users. Hall effect sensors are mounted on the flywheel to detect its rotational speed, calculating real-time rotational speed (RPM) and riding distance via interrupts. When the user pedals, the slider drives the crank in a reciprocating linear or circular motion. The flywheel drives the first driven wheel through a planetary gear reducer for deceleration, then through the second driven wheel to drive the generator. During this cyclic rotation, the Hall effect sensor on the flywheel detects a magnet on the support, triggering an interrupt. The rotational speed is calculated based on the time difference between the two interrupts, and the distance is accumulated according to the flywheel circumference. The microcontroller combines this with body weight and exercise time to calculate calorie consumption. Simultaneously, the pull cord is pulled via servo motor angle control (0°-180° corresponding to 5 gears). The stepping algorithm ensures smooth gear switching, allowing for resistance adjustment from 1 to 5 levels, avoiding mechanical shock.

[0027] The intelligent control module includes a microcontroller with a built-in BLE Bluetooth module. This module's wireless communication capability allows for easy connection to the user's mobile device. When a user wants to connect to the intelligent control module via their mobile device, they first need to install the corresponding application on their phone. After opening the application, the system automatically searches for devices. At this point, the intelligent control module's BLE Bluetooth module comes into play, broadcasting its device information so that it can be detected by nearby mobile devices. Once the mobile device successfully recognizes the intelligent control module, the user can select to pair and connect with it within the application. After successful pairing, a stable Bluetooth-based communication link is established. For data communication, the intelligent control module can perform data monitoring, collecting various data from the exercise equipment in real time, including speed, distance, and calories burned. This data is transmitted to the application on the user's mobile device via the BLE Bluetooth module. Users can view detailed data reports at any time to understand their exercise status and results. Simultaneously, the application also features remote adjustment functionality, allowing users to remotely adjust and switch some parameter settings of the intelligent control module on their mobile phone according to their needs, without direct contact with the device, making it convenient and quick. Furthermore, Bluetooth connectivity allows users to easily share exercise data between different devices or collaborate with other Bluetooth devices when needed, further expanding the application scenarios of the smart control module. The indicator lights on the smart control module display different operating states by switching colors or flashing, such as using different colors to indicate different speed levels, and increasing the LED flashing speed according to cadence, allowing users to monitor their exercise status in real time and better manage and plan their workouts. The USB interface of the smart control module can be used to charge the battery of the multi-functional magnetic exercise bike when it is not in use for extended periods and the battery is low, ensuring the normal operation of the electrical components in the smart control module. It can also be used to charge the user's mobile phone or other electronic devices using electricity generated by the generator during exercise, while simultaneously charging the smart control module's battery.

[0028] In this embodiment, after pairing with the user's mobile phone via Bluetooth, data can be shared, allowing the user to know their real-time updated motion data anytime, anywhere on their mobile phone. The user can also slide the gear bar (1-5 gears) on the mobile app to directly control the SG90 servo installed on the magnetoresistive control unit, and arbitrarily adjust to gears 1-5 to obtain motion effects with different resistance levels.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles and spirit of the present invention should be included within the protection scope of the present invention.

Claims

1. A multifunctional magnetically controlled exercise bike, characterized in that: It includes a base (1) and a flywheel module (2), an intelligent control module (3) and a magnetoresistive control module (4) mounted on the base. The flywheel module includes a quick-release pedal assembly (21), a flywheel (22), a driven wheel, a belt (25), a generator (26) and a reducer (27). The flywheel drives the first driven wheel (23) and the second driven wheel (24) through the belt. The first driven wheel is connected to the reducer, and the second driven wheel is connected to the generator to generate electricity. The generator is electrically connected to the intelligent control module to supply power to it. The intelligent control module provides resistance to the flywheel module through the magnetoresistive control module. The quick-release pedal is installed on the flywheel. By adjusting the quick-release pedal, the exercise bike can switch between spin bike mode and climbing machine mode for different exercises.

2. The multifunctional magnetically controlled exercise bike as described in claim 1, characterized in that: The base includes a rigid support (11) and a pair of folding legs (12) installed at both ends. Both the folding legs and the rigid support are made of metal and form an I-shape. The folding legs are components that connect two cuboids together by a connector (13). The cuboids rotate around the connection point with the connector, and the other end of the cuboids has a rounded chamfer. The intelligent control module and the magnetoresistive control module are installed on the rigid support.

3. The multifunctional magnetically controlled exercise bike as described in claim 1, characterized in that: The quick-release pedal assembly includes a pair of guide rails (211) at both ends of the flywheel, a pedal (212), a first crank (213), a second crank (214), a slider (215), and a bearing seat (216); the lower end of the guide rail is fixed to the base; the first crank has pin holes at both ends, the upper pin hole is fixed to the bearing seat above the guide rail through the central shaft (217), the lower pin hole is connected to one end of the second crank through a pin, and the outer side of the second crank at this point is provided with a first pedal connection port (218), the other end of the second crank is connected to the slider that slides up and down in the guide rail, and the outer side of the second crank at this point is provided with a second pedal connection port (219). When the pedal is connected to the first pedal connector, the exercise bike is in spin bike mode. Stepping on the pedal causes the first crank to rotate, which in turn drives the flywheel to rotate. When the pedal is connected to the second pedal connector, the exercise bike is in climber mode. Stepping on the pedal moves it up and down, causing the second crank to rotate the first crank, which in turn drives the flywheel to rotate.

4. The multifunctional magnetically controlled exercise bike as described in claim 1, characterized in that: The magnetic resistance control module includes an L-shaped base (41), a pull rope (42), a magnetic control plate (43), and a spring (44). The magnetic control plate is a long arc-shaped neodymium iron boron magnet, one end of which is hinged to the upper end of the vertical section of the L-shaped base, and the other end is connected to the pull rope. A spring is provided below the magnetic control plate and in the horizontal section of the L-shaped base. When the intelligent control module controls the pull rope to tighten, the magnetic control plate moves away from the flywheel above it, weakening the magnetic force and thus reducing the resistance. When the intelligent control module controls the pull rope to loosen, the spring causes the magnetic control plate to reset and move closer to the flywheel above it, strengthening the magnetic force and thus increasing the resistance.

5. The multifunctional magnetically controlled exercise bike as described in claim 1, characterized in that: The intelligent control module includes a microcontroller, a battery, a servo motor, a Hall sensor, and a BLE Bluetooth module electrically connected to the microcontroller; the battery is connected to a generator and is charged by the generator. Two Hall effect sensors are used: one is located on the side of the flywheel, which detects the flywheel speed and the microcontroller calculates the real-time cadence; the other is located on the quick-release pedal assembly, which detects the pedal position and the microcontroller determines the mode of the magnetic exercise bike. The BLE Bluetooth module receives real-time heart rate data transmitted from the user's mobile device. The servo motor is connected to the magnetoresistive control module via a pull rope. The microcontroller uses a magnetoresistive dual-mode dynamic compensation stepping algorithm to control the servo motor movement and adjust the tightening and loosening of the pull rope based on the heart rate data and the cadence data.

6. The multifunctional magnetically controlled exercise bike as described in claim 5, characterized in that: The aforementioned magnetic resistance dual-mode dynamic compensation stepping algorithm combines real-time heart rate transmission via BLE Bluetooth, cadence detected by Hall sensors, and pedal position to identify the exercise mode. In the spinning mode, a high-frequency, small-step approach of 1-3 levels / 50ms is used to match the resistance response requirements of the high-speed flywheel rotation, avoiding adjustment lag. In the climbing machine mode, a low-frequency, large-step approach of 3-5 levels / 100ms is used to adapt to the mechanical characteristics of low speed and high resistance, balancing adjustment range and stability. Furthermore, when the detected heart rate is ≥85% of the maximum heart rate and the cadence is ≤60RPM, the magnetic resistance is automatically reduced; when the detected heart rate is ≤60% of the maximum heart rate and the cadence is ≥100RPM, the magnetic resistance is automatically increased to improve exercise efficiency.

7. The multifunctional magnetically controlled exercise bike as described in claim 5, characterized in that: The servo motor is model SG90, and the microcontroller is model ESP32.

8. The method for unilateral polygonal inlay bone reconstruction and connection of the mandible as described in claim 5, characterized in that: The intelligent control module is also equipped with indicator lights and a USB interface. The indicator lights have at least two LED beads to display the working status, and the USB interface is used for external power supply.

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