Intelligent suspension adjusting front fork device and method for shared bicycle

Abstract

The invention discloses an intelligent shock-proof adjusting front fork device and method for a shared bicycle. The intelligent shock-proof adjusting front fork device comprises a main support, a front wheel assembly, a movable rod, a sensing assembly, a control module and a shock-proof adjusting mechanism. The sensing assembly collects the weight of a rider, the sliding speed of the movable rod and vehicle vibration acceleration data, and the control module generates an instruction according to the data to drive the electromagnetic valve to adjust the hydraulic oil flow rate and change the motion resistance of the piston so as to dynamically adjust the shock-proof performance. The damping effect can be automatically adjusted in real time according to the riding state, manual operation is not needed, the riding comfort and adaptability are remarkably improved, and meanwhile the durability and the impact resistance are improved through the design of the protective cover and the damping coating.

Description

Technical Field

[0001] The present invention relates to the technical fields of intelligent transportation vehicles and shock absorption technology, and particularly relates to an intelligent shock absorption adjustment front fork device and method for a shared bicycle. Background Art

[0002] As a convenient short-distance transportation vehicle, shared bicycles are widely used in urban traffic, which can effectively relieve traffic pressure and reduce environmental pollution. Shared bicycles are usually equipped with a front fork device to improve the riding comfort and stability. Especially on bumpy roads or complex road conditions, the shock absorption function of the front fork is particularly important. Most of the existing front fork devices for shared bicycles adopt fixed or manually adjustable shock absorption structures to improve the riding experience by absorbing vibrations. Such devices meet the user's needs to a certain extent and are widely used in various shared bicycles.

[0003] However, in the actual use process, the shock absorption effect of the existing front fork device often depends on manual adjustment by the user or the preset parameters at the time of factory production. Due to the differences in the weights, riding habits, and road conditions of different users, fixed shock absorption parameters are difficult to fully meet the diverse needs. In addition, the manual adjustment method requires the user to have certain operation knowledge and cannot be adjusted in real time during the riding process, which may affect the riding experience to a certain extent. At the same time, the lack of an intelligent adjustment mechanism in the existing technology makes the adaptability of the front fork device in dealing with complex road conditions have certain limitations. Summary of the Invention

[0004] The purpose of the invention is to provide an intelligent shock absorption adjustment front fork device and method for a shared bicycle, which solves the problems mentioned in the background art.

[0005] The purpose of the present invention is to address the problem that the shock absorption effect of the front fork device of a shared bicycle in the background art depends on manual adjustment or factory preset parameters and is difficult to adapt to different user weights, riding habits, and complex road conditions, and to propose an intelligent shock absorption adjustment front fork device that can automatically adjust the shock absorption performance in real time according to the riding state.

[0006] On the one hand, the present invention proposes an intelligent shock absorption adjustment front fork device for a shared bicycle, which includes a main bracket fixedly installed on the frame, a front wheel assembly rotatably connected to the lower end of the main bracket, and a shock absorption adjustment mechanism arranged inside the main bracket. It also includes: a movable rod slidably installed in the main bracket, a sensing component for sensing the riding state is provided on the movable rod, and the sensing component is signal-connected to the shock absorption adjustment mechanism; a control module fixedly installed on the main bracket, the control module receives the signal of the sensing component and drives the shock absorption adjustment mechanism to perform dynamic adjustment; the shock absorption adjustment mechanism realizes the real-time adjustment of the shock absorption performance of the front fork device by changing the damping characteristics of the movable rod.

[0007] Optionally, the shock absorber adjustment mechanism includes a hydraulic cylinder fixedly installed on the inner wall of the main bracket, a piston slidably installed in the hydraulic cylinder, a push rod passing through and fixedly connected to the piston, and a solenoid valve assembly fixedly installed at the bottom of the hydraulic cylinder. The solenoid valve assembly is driven by a control module to change the movement resistance of the piston by adjusting the flow rate of the hydraulic oil, thereby adjusting the damping characteristics of the movable rod.

[0008] Optionally, the movable rod is slidably installed in the main bracket. A plurality of annular grooves are provided on the outer side of the movable rod, and balls are embedded in the annular grooves. The balls are in contact with the inner wall of the main bracket to reduce the friction force during the sliding process of the movable rod. The lower end of the movable rod is fixedly connected to the front wheel assembly by a threaded connection method, and an installation seat for installing the sensing assembly is provided at the upper end of the movable rod.

[0009] Optionally, the sensing assembly includes a pressure sensor fixedly installed on the installation seat of the movable rod, a speed sensor fixedly installed on the inner wall of the main bracket, and an acceleration sensor fixedly installed on the top of the main bracket. The pressure sensor is used to detect the pressure change of the rider on the front fork, the speed sensor is used to detect the sliding speed of the movable rod, and the acceleration sensor is used to detect the vibration acceleration of the vehicle in the vertical direction.

[0010] Optionally, the control module includes a circuit board fixedly installed on the outer side of the main bracket, a microprocessor soldered on the circuit board, and a wireless communication module electrically connected to the microprocessor. The microprocessor receives the signals of the sensing assembly and generates control instructions according to a preset algorithm. The wireless communication module is used to transmit the riding data to the cloud server.

[0011] Optionally, the solenoid valve assembly includes a valve body fixedly installed at the bottom of the hydraulic cylinder, a valve core slidably installed in the valve body, and a stepper motor fixedly installed outside the valve body. The output shaft of the stepper motor is fixedly connected to the valve core through a coupling. The control module drives the stepper motor to drive the valve core to move, thereby changing the flow cross-sectional area of the hydraulic oil.

[0012] Optionally, sealing rings are provided at both ends of the hydraulic cylinder. The sealing rings are installed on the inner wall of the hydraulic cylinder by an interference fit method. The material of the sealing rings is polytetrafluoroethylene to improve the sealing performance and service life of the hydraulic cylinder. The inside of the hydraulic cylinder is filled with low-viscosity hydraulic oil, and antioxidants and anti-wear agents are added to the hydraulic oil.

[0013] Optionally, a protective cover is provided on the outer side of the main bracket. The protective cover is fixedly connected to the main bracket through a buckle structure. The material of the protective cover is high-strength engineering plastic, and a shock-absorbing coating is applied to the inner side of the protective cover to reduce the impact of the outside world on the main bracket.

[0014] On the other hand, the present invention proposes a method for using an intelligent shock absorption adjustment front fork device of a shared bicycle, which is applied to the above intelligent shock absorption adjustment front fork device. The method includes the following steps: After the rider mounts the shared bicycle, the pressure sensor detects the weight of the rider and transmits the signal to the control module; during the riding process, the speed sensor and the acceleration sensor respectively detect the sliding speed of the movable rod and the vibration acceleration of the vehicle, and transmit the signals to the control module; the control module calculates the optimal shock absorption parameters under the current riding state according to the received signals, and adjusts the opening degree of the solenoid valve assembly by driving the stepper motor; the solenoid valve assembly adjusts the movement resistance of the piston by changing the flow rate of the hydraulic oil, thereby realizing the dynamic adjustment of the shock absorption performance of the front fork device.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: By arranging a pressure sensor, a speed sensor and an acceleration sensor on the movable rod, data such as the weight of the rider, the sliding speed of the movable rod and the vibration acceleration of the vehicle can be collected in real time. The control module generates control instructions according to these data and adjusts the flow rate of the hydraulic oil through the solenoid valve assembly, thereby changing the movement resistance of the piston and realizing the dynamic adjustment of the shock absorption performance of the front fork device. This design does not require the rider to operate manually and can automatically adjust the shock absorption effect according to the riding state, significantly improving the riding comfort and adaptability. At the same time, through the design of using a protective cover made of high-strength engineering plastics and coating a shock-absorbing coating, the durability and impact resistance of the front fork device are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the intelligent shock absorption adjustment front fork device of the present invention;

[0017] Figure 2 is the front view of the present invention;

[0018] Figure 3 is the installation schematic diagram of the present invention.

[0019] The reference numerals are as follows: 1, main bracket; 2, movable rod; 3, front wheel assembly; 4, hydraulic cylinder; 5, piston; 6, push rod; 7, solenoid valve assembly; 8, pressure sensor; 9, speed sensor; 10, acceleration sensor; 11, control module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The specific embodiments of the intelligent shock absorption adjustment front fork device of the shared bicycle of the present invention are described in detail in conjunction with the attached Figure 1 to the attached Figure 3 are described in detail. As Figure 1As shown in the figure, the main bracket 1 is the core load-bearing component of the entire device. It is fixedly installed on the frame of the shared bicycle and is used to support and connect other components. The movable rod 2 is slidably installed inside the main bracket 1, and its lower end is fixedly connected to the front wheel assembly 3 by a threaded connection method, thereby realizing the relative movement between the front wheel assembly 3 and the main bracket 1. A plurality of annular grooves are provided on the outer side of the movable rod 2, and balls are embedded in the annular grooves. The balls contact the inner wall of the main bracket 1 to reduce the friction force when the movable rod 2 slides. An installation seat is provided at the upper end of the movable rod 2, and a pressure sensor 8, a speed sensor 9, and an acceleration sensor 10 are fixedly installed on the installation seat. These sensing components are jointly used to collect dynamic data during the riding process in real time.

[0021] The shock absorption adjustment mechanism is arranged inside the main bracket 1. Its core components include a hydraulic cylinder 4, a piston 5, a push rod 6, and a solenoid valve assembly 7. The hydraulic cylinder 4 is fixedly installed on the inner wall of the main bracket 1, the piston 5 is slidably installed inside the hydraulic cylinder 4, the push rod 6 passes through the piston 5 and is fixedly connected to the piston 5, and the other end of the push rod 6 is connected to the lower end of the movable rod 2. The solenoid valve assembly 7 is fixedly installed at the bottom of the hydraulic cylinder 4, and its structure is as Figure 2 shown, including a valve body, a valve core slidably installed inside the valve body, and a stepper motor fixedly installed outside the valve body. The output shaft of the stepper motor is fixedly connected to the valve core through a coupling. The control module 11 drives the stepper motor to drive the valve core to move, thereby changing the flow cross-sectional area of the hydraulic oil. Sealing rings are provided at both ends of the hydraulic cylinder 4. The sealing rings are installed on the inner wall of the hydraulic cylinder 4 by an interference fit method, and the material is selected as polytetrafluoroethylene to improve the sealing performance and service life of the hydraulic cylinder 4. Low-viscosity hydraulic oil is filled inside the hydraulic cylinder 4, and antioxidants and anti-wear agents are added to the hydraulic oil to ensure the stability and reliability during long-term use.

[0022] The control module 11 is fixedly installed outside the main bracket 1. Its internal structure includes a circuit board, a microprocessor soldered on the circuit board, and a wireless communication module electrically connected to the microprocessor. As Figure 3 shown, the pressure sensor 8, the speed sensor 9, and the acceleration sensor 10 are respectively connected to the control module 11 through signal lines, and transmit the collected data to the microprocessor. The microprocessor processes the received signals according to a preset algorithm and generates control instructions. The control instructions are transmitted to the stepper motor of the solenoid valve assembly 7 through a drive circuit, thereby adjusting the opening degree of the solenoid valve assembly 7. The solenoid valve assembly 7 adjusts the movement resistance of the piston 5 by changing the flow rate of the hydraulic oil, and further changes the damping characteristics of the movable rod 2, realizing the dynamic adjustment of the shock absorption performance of the front fork device.

[0023] The protective cover is fixedly connected to the main bracket 1 through a snap structure. The material of the protective cover is high-strength engineering plastic, and its inner side is coated with a shock-absorbing coating to reduce the impact of the external shock on the main bracket 1. The design of the protective cover can not only protect the internal components from the erosion of the external environment, but also effectively absorb part of the impact force, further improving the overall durability of the device.

[0024] During the actual use process, after the rider mounts the shared bicycle, the pressure sensor 8 detects the weight of the rider and transmits the signal to the control module 11. During the riding process, the speed sensor 9 detects the sliding speed of the movable rod 2, and the acceleration sensor 10 detects the vibration acceleration of the vehicle in the vertical direction and transmits the signal to the control module 11. The control module 11 calculates the optimal shock absorption parameters under the current riding state according to the received signals, and adjusts the opening degree of the solenoid valve assembly 7 by driving the stepper motor. The solenoid valve assembly 7 adjusts the movement resistance of the piston 5 by changing the flow rate of the hydraulic oil, thereby realizing the dynamic adjustment of the shock absorption performance of the front fork device. For example, when the rider has a heavier weight or the riding road conditions are complex, the control module 11 will increase the opening degree of the solenoid valve assembly 7, reduce the flow rate of the hydraulic oil, thereby increasing the movement resistance of the piston 5 and improving the shock absorption effect; on the contrary, when the rider has a lighter weight or the road conditions are relatively flat, the control module 11 will reduce the opening degree of the solenoid valve assembly 7, increase the flow rate of the hydraulic oil, reduce the movement resistance of the piston 5, and reduce unnecessary energy consumption.

[0025] In this embodiment, the connection relationships and position relationships of all components are precisely designed to ensure the overall performance and stability of the device. For example, the sliding fit between the movable rod 2 and the main bracket 1 is realized through ball bearings, which not only ensures the smooth sliding of the movable rod 2 but also reduces the friction loss. The fixed connection between the hydraulic cylinder 4 and the main bracket 1 uses high-strength bolts to ensure the stability of the hydraulic cylinder 4 under high-load working conditions. The valve core of the solenoid valve assembly 7 and the stepper motor are rigidly connected through a coupling to ensure the displacement accuracy and response speed of the valve core. In addition, the wireless communication module of the control module 11 can transmit the riding data to the cloud server in real time, which is convenient for subsequent data analysis and optimization.

[0026] In this embodiment, the material selection and processing technology of each component are also strictly considered. For example, the main bracket 1 is made of high-strength aluminum alloy material, which not only ensures the structural strength but also reduces the overall weight. The inner wall of the hydraulic cylinder 4 is processed by precision grinding, and the surface roughness reaches below Ra0.4 to ensure the smooth flow of the hydraulic oil. The sealing ring is made of polytetrafluoroethylene material, which has excellent wear resistance and corrosion resistance and can maintain good sealing performance during long-term use. The shock-absorbing coating of the protective cover is made of polyurethane material, which has good elasticity and impact resistance and can effectively absorb the external impact force.

[0027] In this embodiment, the operating principle and process of the device are as follows: After the rider mounts the shared bicycle, the pressure sensor 8 first detects the weight of the rider and transmits the signal to the control module 11. During the riding process, the speed sensor 9 and the acceleration sensor 10 respectively detect the sliding speed of the movable rod 2 and the vibration acceleration of the vehicle, and transmit the signals to the control module 11. The control module 11 calculates the optimal shock absorption parameters in the current riding state according to the received signals, and adjusts the opening degree of the solenoid valve assembly 7 by driving the stepper motor. The solenoid valve assembly 7 adjusts the movement resistance of the piston 5 by changing the flow rate of the hydraulic oil, thereby realizing the dynamic adjustment of the shock absorption performance of the front fork device. During the entire riding process, the device can adjust the shock absorption effect in real time according to the rider's weight, riding habits and road conditions changes, without the need for manual operation by the rider, significantly improving the riding comfort and adaptability.

[0028] In this embodiment, the actual application scenarios of the device include urban road riding, mountain riding, and riding on complex road conditions, etc. During urban road riding, the device can automatically adjust the shock absorption effect according to the rider's weight and road surface flatness, providing a comfortable riding experience. During mountain riding, the device can quickly respond to road condition changes, providing stronger shock absorption ability to ensure riding safety. During riding on complex road conditions, the device can dynamically adjust the shock absorption parameters according to the vibration of the vehicle, avoiding riding discomfort caused by excessive or insufficient shock absorption.

[0029] In order to enable the relevant personnel in the technical field to fully understand and implement the present invention better, the implementation principle of the present invention is supplemented and explained below in combination with specific application scenarios.

[0030] First, in the urban road riding scenario, after the rider mounts the shared bicycle, the pressure sensor 8 detects the weight of the rider and transmits the signal to the control module 11. At this time, the speed sensor 9 and the acceleration sensor 10 respectively collect the sliding speed of the movable rod 2 and the vibration acceleration of the vehicle in the vertical direction, and transmit the data to the control module 11. The microprocessor in the control module 11 calculates the optimal shock absorption parameters in the current road condition according to the received data. For example, when the road surface is relatively flat, the microprocessor generates an instruction to reduce the opening degree of the solenoid valve assembly 7, so that the flow rate of the hydraulic oil in the hydraulic cylinder 4 increases, thereby reducing the movement resistance of the piston 5. This process is realized by driving the valve core of the solenoid valve assembly 7 to move by the stepper motor, finally reducing the damping characteristic of the movable rod 2, avoiding unnecessary energy loss, and ensuring the riding comfort at the same time.

[0031] Secondly, in the mountain biking scenario, due to the complex and bumpy road conditions, the device needs to respond quickly to provide stronger shock absorption capabilities. When a large impact force is encountered during riding, the acceleration sensor 10 detects a significant increase in the vibration acceleration of the vehicle in the vertical direction and transmits the signal to the control module 11. The microprocessor determines that the current road conditions require enhanced shock absorption effect according to the preset algorithm, and then generates an instruction to increase the opening degree of the solenoid valve assembly 7. The stepper motor drives the valve core to move, changing the flow cross-sectional area of the hydraulic oil, reducing the flow rate of the hydraulic oil, and thus increasing the movement resistance of the piston 5. This adjustment process is transmitted to the movable rod 2 through the push rod 6, improving the overall damping characteristics of the front fork device, effectively absorbing the impact force, and ensuring riding safety.

[0032] Thirdly, in the complex road condition riding scenario, the device can dynamically adjust the shock absorption parameters according to the vibration situation of the vehicle. For example, when the rider passes through a potholed road section, the speed sensor 9 detects a significant change in the sliding speed of the movable rod 2, and at the same time, the acceleration sensor 10 detects an increase in the vibration acceleration of the vehicle in the vertical direction. These signals are transmitted to the control module 11 in real time, and the microprocessor generates corresponding control instructions based on the current data. If the vibration frequency is high and the impact force is large, the microprocessor will drive the stepper motor to increase the opening degree of the solenoid valve assembly 7, reduce the flow rate of the hydraulic oil, thereby increasing the movement resistance of the piston 5 and enhancing the shock absorption effect; conversely, if the vibration frequency is low and the impact force is small, the microprocessor will reduce the opening degree of the solenoid valve assembly 7, increase the flow rate of the hydraulic oil, and reduce the movement resistance of the piston 5. This dynamic adjustment mechanism ensures that the device can provide suitable shock absorption performance under different road conditions, avoiding riding discomfort caused by excessive or insufficient shock absorption.

[0033] In addition, the design of the protective cover also plays an important role in the above scenarios. When an external impact force acts on the main bracket 1, the polyurethane shock-absorbing coating applied on the inner side of the protective cover can effectively absorb part of the impact force and reduce the impact on the internal components. At the same time, the protective cover made of high-strength engineering plastic is fixedly connected to the main bracket 1 through a snap structure, not only protecting the internal components from the erosion of the external environment, but also further improving the overall durability of the device.

[0034] During the entire riding process, the wireless communication module of the control module 11 transmits the riding data to the cloud server in real time for subsequent data analysis and optimization. For example, through the analysis of a large amount of riding data, the preset algorithm of the microprocessor can be further optimized to enable it to more accurately adapt to the weight, riding habits of different riders, and the diverse road condition requirements.

[0035] In summary, the intelligent shock-absorbing adjustable front fork device of the present invention collects real-time riding state data through the pressure sensor 8, the speed sensor 9, and the acceleration sensor 10, and the control module 11 generates control instructions to drive the solenoid valve assembly 7 to adjust the flow rate of the hydraulic oil, thereby changing the movement resistance of the piston 5 and realizing the dynamic adjustment of the shock-absorbing performance of the front fork device. This design does not require manual operation by the rider and can automatically adjust the shock-absorbing effect according to the riding state, significantly improving the riding comfort and adaptability. At the same time, through the design of the protective cover made of high-strength engineering plastics and the shock-absorbing coating, the durability and impact resistance of the front fork device are further improved.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent shock absorption adjustment front fork device for a shared bicycle, comprising a main bracket (1) fixedly installed on a vehicle frame, a front wheel assembly (3) rotatably connected to the lower end of the main bracket (1), and a shock absorption adjustment mechanism arranged inside the main bracket (1), characterized in that, It further includes: A movable rod (2) slidably installed within the main bracket (1), with a sensing component for sensing the riding state provided on the movable rod (2), and the sensing component is signal-connected to the shock absorber adjustment mechanism; A control module (11) fixedly installed on the main bracket (1), and the control module (11) receives the signal of the sensing component and drives the shock absorber adjustment mechanism to perform dynamic adjustment; The shock absorber adjustment mechanism realizes real-time adjustment of the shock absorption performance of the front fork device by changing the damping characteristics of the movable rod (2).

2. The intelligent shock absorption adjustment front fork device of a shared bicycle according to claim 1, characterized in that, The shock absorber adjustment mechanism includes a hydraulic cylinder (4) fixedly installed on the inner wall of the main bracket (1), a piston (5) slidably installed within the hydraulic cylinder (4), a push rod (6) passing through the piston (5) and fixedly connected to the piston (5), and a solenoid valve assembly (7) fixedly installed at the bottom of the hydraulic cylinder (4). The solenoid valve assembly (7) is driven by the control module (11) and changes the movement resistance of the piston (5) by adjusting the flow rate of the hydraulic oil, thereby adjusting the damping characteristics of the movable rod (2).

3. The intelligent shock-absorbing adjustable front fork device for a shared bicycle according to claim 1, characterized in that, The movable rod (2) is slidably installed within the main bracket (1). A plurality of annular grooves are provided on the outer side of the movable rod (2), and balls are embedded in the annular grooves. The balls contact the inner wall of the main bracket (1) to reduce the friction force during the sliding process of the movable rod (2); the lower end of the movable rod (2) is fixedly connected to the front wheel assembly (3) by a threaded connection method, and an installation seat for installing the sensing component is provided at the upper end of the movable rod (2).

4. An intelligent shock absorption adjustment front fork device for a shared bicycle according to claim 1, characterized in that, The sensing component includes a pressure sensor (8) fixedly installed on the installation seat of the movable rod (2), a speed sensor (9) fixedly installed on the inner wall of the main bracket (1), and an acceleration sensor (10) fixedly installed on the top of the main bracket (1).

5. The intelligent shock absorption adjustment front fork device of a shared bicycle according to claim 1, characterized in that The control module (11) includes a circuit board fixedly installed on the outer side of the main bracket (1), a microprocessor soldered on the circuit board, and a wireless communication module electrically connected to the microprocessor.

6. The intelligent shock-absorbing adjustable front fork device for a shared bicycle according to claim 2, wherein, The solenoid valve assembly (7) includes a valve body fixedly installed at the bottom of the hydraulic cylinder (4), a valve core slidably installed within the valve body, and a stepper motor fixedly installed outside the valve body. The output shaft of the stepper motor is fixedly connected to the valve core through a coupling. The control module (11) drives the stepper motor to drive the valve core to move, thereby changing the flow cross-sectional area of the hydraulic oil.

7. A method of using an intelligent shock absorption adjustment front fork device for a shared bicycle, which is applied to the intelligent shock absorption adjustment front fork device according to any one of claims 1 to 6. The method includes the following steps: After the rider mounts the shared bicycle, the pressure sensor (8) detects the weight of the rider and transmits the signal to the control module (11); During the riding process, the speed sensor (9) and the acceleration sensor (10) respectively detect the sliding speed of the movable rod (2) and the vibration acceleration of the vehicle, and transmit the signals to the control module (11); The control module (11) calculates the optimal shock absorption parameters under the current riding state according to the received signals, and adjusts the opening degree of the solenoid valve assembly (7) by driving the stepper motor; The solenoid valve assembly (7) adjusts the movement resistance of the piston (5) by changing the flow rate of the hydraulic oil, thereby realizing dynamic adjustment of the shock absorption performance of the front fork device.

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