CN210605422U

CN210605422U - Damping adjusting device of mountain bike shock absorber

Info

Publication number: CN210605422U
Application number: CN201921827941.7U
Authority: CN
Inventors: 陈昆; 杨小清; 耿玉银; 蒋震
Original assignee: Wuhan Qiwu Technology Co ltd
Current assignee: Wuhan Qiwu Technology Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-05-22
Anticipated expiration: 2029-10-28

Abstract

The utility model relates to the technical field of shock absorber damping adjustment, and discloses a damping adjustment device of a mountain bike shock absorber, which comprises a triaxial acceleration sensor, a controller, an angular displacement sensor and an actuator; the three-axis acceleration sensor is arranged on the mountain bike, the angular displacement sensor is arranged on an adjusting knob of the shock absorber, and the actuator is in transmission connection with a rotating shaft of the adjusting knob; the three-axis acceleration sensor is electrically connected with the controller and is used for detecting the horizontal acceleration and the vertical acceleration of the mountain bike; the angular displacement sensor is electrically connected with the controller and is used for detecting the real-time rotation angle of the adjusting knob; the controller is electrically connected with the actuator and used for sending an angle adjusting value to the actuator according to the horizontal acceleration, the vertical acceleration and the real-time rotating angle, and the actuator is used for adjusting the rotating angle of the adjusting knob according to the angle adjusting value. The utility model discloses have the technical effect that automatic adjustment shock absorber damping, damping adjustment precision are high.

Description

Damping adjusting device of mountain bike shock absorber

Technical Field

The utility model relates to a shock absorber damping adjustment technical field, concretely relates to damping adjustment device of mountain bike shock absorber.

Background

In order to reduce the vibration degree of a frame during riding and enable the mountain bike to run more stably, thereby improving the maneuverability, riding comfort and safety of the mountain bike, a plurality of mountain bikes are provided with shock absorbers on front forks. In different road sections, the working effect of the shock absorber can be adjusted by adjusting the damping of the shock absorber, so that the mountain bike is in the most appropriate working state. However, the damping adjustment of the existing mountain bike shock absorber is realized by manually adjusting a compression damping adjusting knob located on a fork shoulder and a rebound damping adjusting knob located on a fork foot. Manual adjustment of shock absorber damping presents the following problems: the manual adjustment is not easy to control, and particularly for a new person entering a door, the adjustment difficulty is high, the adjustment is not skilled, the adjustment time is long, and the adjustment effect is poor; the damping adjustment needs to be carried out in the riding process, and even a skilled driver cannot necessarily adjust the damping correctly or accurately in the riding process; particularly, when a race or a ride is on a severe road section, a driver needs to concentrate on controlling the bicycle and cannot adjust the bicycle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide a damping adjusting device of mountain bike shock absorber, solve among the prior art shock absorber damping adjustment degree of difficulty big, the degree of accuracy low, can't be at the technical problem of the in-process accurate regulation of riding.

In order to achieve the technical purpose, the technical scheme of the utility model provides a damping adjusting device of a mountain bike shock absorber, which comprises a triaxial acceleration sensor, a controller, an angular displacement sensor and an actuator;

the three-axis acceleration sensor is arranged on the mountain bike, the angular displacement sensor is arranged on an adjusting knob of the shock absorber, and the actuator is in transmission connection with a rotating shaft of the adjusting knob; the three-axis acceleration sensor is electrically connected with the controller and is used for detecting the horizontal acceleration and the vertical acceleration of the mountain bike; the angular displacement sensor is electrically connected with the controller and is used for detecting the real-time rotation angle of the adjusting knob; the controller is electrically connected with the actuator and used for sending an angle adjusting value to the actuator according to the horizontal acceleration, the vertical acceleration and the real-time rotation angle, and the actuator is used for adjusting the rotation angle of the adjusting knob according to the angle adjusting value.

Compared with the prior art, the beneficial effects of the utility model include: the utility model discloses at first realize the detection of climbing bicycle motion state through triaxial acceleration, detect adjust knob's real-time rotation angle through angle displacement sensor, as the reference angle of regulation, the controller judges the angle modulation value based on current real-time rotation angle according to the present motion state of climbing bicycle, and the executor is adjusted adjust knob according to the angle modulation value to realized riding in-process shock absorber damped automatically regulated, liberated driver's both hands, make driver can attentively ride. The horizontal acceleration and the vertical acceleration detected by the triaxial acceleration sensor can objectively and accurately reflect the real-time motion state of the mountain bike, and provide accurate and objective adjusting basis for damping adjustment, so that the damping adjustment precision is improved.

Drawings

Fig. 1 is a circuit configuration diagram of an embodiment of a damping adjustment device of a mountain bike shock absorber.

Reference numerals:

1. the device comprises a three-axis acceleration sensor 2, a controller 3, an angular displacement sensor 4 and an actuator.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is 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 the invention.

Example 1

As shown in fig. 1, an embodiment 1 of the present invention provides a damping adjustment device for a mountain bike shock absorber, which includes a triaxial acceleration sensor 1, a controller 2, an angular displacement sensor 3 and an actuator 4;

the three-axis acceleration sensor 1 is arranged on the mountain bike, the angular displacement sensor 3 is arranged on an adjusting knob of a shock absorber, and the actuator 4 is in transmission connection with a rotating shaft of the adjusting knob; the three-axis acceleration sensor 1 is electrically connected with the controller 2 and is used for detecting the horizontal acceleration and the vertical acceleration of the mountain bike; the angular displacement sensor 3 is electrically connected with the controller 2 and is used for detecting the real-time rotation angle of the adjusting knob; the controller 2 is electrically connected with the actuator 4 and is used for sending an angle adjusting value to the actuator 4 according to the horizontal acceleration, the vertical acceleration and the real-time rotation angle, and the actuator 4 is used for adjusting the rotation angle of the adjusting knob according to the angle adjusting value.

The embodiment of the utility model provides an use triaxial acceleration sensor 1 to detect the acceleration of climbing bicycle in horizontal direction and vertical direction to as the input signal of controller 2, controller 2 judges the present running state of climbing bicycle according to horizontal acceleration and vertical acceleration, if the climbing bicycle is in comparatively steady highway section, vertical acceleration is less promptly, and the speed of riding is steady, horizontal acceleration is less promptly, then need adjust the damping value of shock absorber value less value, reduce and grab the land fertility, guarantee the speed of riding, reduce the damping of riding; if the mountain bike is in comparatively unsmooth and precipitous highway section, vertical acceleration is great promptly, and the speed of riding is undulant great because the reason that the road conditions is not good, and horizontal acceleration is great promptly, then need adjust the damping value of shock absorber to great value, and the land fertility is grabbed in the increase, guarantees the safety of riding. The above "larger" and "smaller" are relative concepts, and the specific adjustment value can be set according to the actual situation. For example, set for the corresponding relation of the standard rotation angle value of different scope's horizontal acceleration and vertical acceleration and adjust knob, then can adjust knob in real time according to the corresponding relation, the control logic that relates adopts prior art to realize for simple correspondence selection control logic, the utility model discloses do not relate to the improvement to this. Angular displacement sensor 3 is used for detecting adjust knob's real-time rotation angle, provides the regulation reference value for the angle adjustment value of controller 2, for example, if real-time rotation angle is less than when standard rotation angle value, then increases rotation angle, if real-time rotation angle is greater than when standard rotation angle value, then reduces rotation angle, and related control logic is simple comparison control logic, adopts prior art can realize, the utility model discloses do not relate to the improvement to this, no longer give unnecessary details here. The real-time rotation angle detected by the angular displacement sensor 3 simultaneously realizes adjustment feedback for the angle adjustment of the controller 2, and the adjustment is guaranteed to be in place. The controller 2 drives the actuator 4, the actuator 4 rotates to drive the adjusting knob to rotate, so that the real-time rotation angle of the adjusting knob is changed, and the damping of the shock absorber is adjusted.

The utility model discloses an automatic adjustment of shock absorber need not at driving in-process manual regulation shock absorber, reduces the complexity of mountain bike shock absorber damping adjustment to make it change in the use. Simultaneously to the damped regulation of shock absorber based on the detection of triaxial acceleration sensor 1 to the mountain bike state of traveling to the realization improves travelling comfort and security when riding to different road conditions automatic adjustment shock absorber damping, makes the driver can be absorbed in accuse car and need not the distraction and adjusts the shock absorber, and the help driver improves the match score.

Preferably, the actuator 4 is a stepping motor.

After the controller 2 outputs the angle adjustment value, the actuator 4 is driven to change the angular displacement of the adjusting knob, so that the damping of the shock absorber can be changed, and the actuator 4 is realized by adopting a stepping motor in the embodiment. The rotation of the stepping motor drives the adjusting knob to rotate, so that the effect of damping adjustment is achieved. The transmission connection between the stepping motor and the adjusting knob can be realized by adopting the prior art, for example, the output shaft of the stepping motor can be directly and coaxially connected with the rotating shaft of the adjusting knob; the controller 2 may also adopt the prior art to implement the control logic of the stepping motor, and redundant description is omitted here.

Preferably, the triaxial acceleration sensor 1 is electrically connected with the controller 2 sequentially through a low-pass filter circuit, an amplifying circuit and an analog-to-digital conversion circuit.

The low-pass filter circuit is used for filtering and conditioning detection data of the triaxial acceleration sensor 1 to avoid interference of clutter signals to detection results, and the amplifying circuit and the analog-to-digital conversion circuit respectively amplify and convert the detection data so as to facilitate processing of the controller 2. In this embodiment, the triaxial acceleration sensor 1 adopts a DYTRAN 3293A high-sensitivity triaxial acceleration sensor 1, and an amplifying circuit and a low-pass filter circuit are integrated therein, so that it is not necessary to additionally provide a low-pass filter circuit and an amplifying circuit. The controller 2 employs an MCU, i.e. the microcontroller 2, for example, ARM Cortex M4F may be employed. An analog-digital conversion module is integrated in the ARM Cortex M4F, so that an analog-digital conversion circuit is not required to be additionally arranged. In this embodiment, the angular displacement sensor 3 employs an AS5040 contactless magnetic rotary encoder, which outputs digital quantity without analog-to-digital conversion and can accurately measure an angle within 360 °.

Preferably, the number of the adjusting knobs is two, and the two adjusting knobs are respectively a compression damping knob and a rebound damping knob;

the number of the angular displacement sensors 3 is two, the two angular displacement sensors 3 are respectively a compression angular displacement sensor 3 and a rebound angular displacement sensor 3, the compression angular displacement sensors 3 are mounted on the compression damping knob and are used for detecting a real-time compression rotation angle of the compression damping knob, the rebound angular displacement sensors 3 are mounted on the rebound damping knob and are used for detecting a real-time rebound rotation angle of the rebound damping knob, and both the two angular displacement sensors 3 are electrically connected with the controller 2;

the number of the actuators 4 is two, the two actuators 4 are respectively a compression actuator 4 and a rebound actuator 4, the compression actuator 4 is in transmission connection with a rotating shaft of the compression damping knob, the rebound actuator 4 is in transmission connection with a rotating shaft of the rebound damping knob, and both the two actuators 4 are electrically connected with the controller 2; the controller 2 is used for sending a compression angle adjusting value to the compression actuator 4 according to the horizontal acceleration, the vertical acceleration and the real-time compression rotation angle, the compression actuator 4 is used for carrying out compression angle adjustment according to the compression angle adjusting value, the controller 2 is used for sending a rebound angle adjusting value to the rebound actuator 4 according to the horizontal acceleration, the vertical acceleration and the real-time rebound rotation angle, and the rebound actuator 4 is used for carrying out rebound angle adjustment according to the rebound angle adjusting value.

Generally, two adjusting knobs, namely a compression adjusting knob and a rebound adjusting knob, exist on the shock absorber, one of the adjusting knobs can be selected for control, and the two adjusting knobs can also be controlled simultaneously. In this embodiment, two adjusting knobs are controlled simultaneously, the compression adjusting knob is used for adjusting the compression damping of the shock absorber, and the rebound adjusting knob is used for adjusting the rebound damping of the shock absorber, so that more accurate damping adjustment is realized.

The utility model provides a damping adjusting device of climbing bicycle shock absorber can realize the damping adjustment of the shock absorber of different kind climbing bicycle, but because the utility model provides a damping adjusting device of shock absorber can adjust damping in real time riding the in-process, consequently uses damping to adjust mild, smooth shock absorber as excellent, damping adjust mild, smooth shock absorber and the utility model provides a damping adjusting device of climbing bicycle shock absorber cooperatees, can reach better damping adjustment effect, and the reinforcing user experience of riding.

Specifically, this embodiment provides a preferred shock absorber, and this shock absorber includes compression damping pipe, resilience damping pipe, fork shoulder and steerage tube, and compression damping pipe and resilience damping pipe are connected respectively in the both ends of fork shoulder, and the fork shoulder is connected with the steerage tube, and the steerage tube is used for being connected with the locomotive. The compression damping pipe comprises a compression inner pipe and a compression outer pipe, the compression outer pipe is sleeved on the compression inner pipe, a compression piston is slidably connected in the compression inner pipe, one end of the compression piston is fixed at one end of the compression outer pipe, the compression piston divides the compression damping pipe into two oil chambers, an oil hole is formed in a plug head of the compression piston, a compression adjusting knob is connected with the oil hole and used for adjusting the opening degree of the oil hole and controlling the flowing speed of oil, so that the expansion speed of the compression damping pipe is controlled, and the purpose of controlling the compression damping of the compression damping pipe is achieved. The resilience damping tube comprises a resilience outer tube and a resilience inner tube, the resilience outer tube sleeve is arranged on the resilience inner tube, the top of the resilience inner tube is sealed, the bottom of the resilience inner tube is connected with an air chamber oil seal, the air chamber oil seal is used for preventing gas leakage from influencing resilience effects, the resilience inner tube is connected with a resilience piston in a sliding manner, an air chamber is formed between the resilience inner tube and the resilience piston, the top of the resilience inner tube is provided with an air hole, a resilience adjusting knob is connected with the air hole and used for adjusting the opening degree of the air hole, gas compression is controlled, resilience speed is controlled. The top of resilience inner tube is connected with buffer spring, buffer spring is connected with the rebound piston, realize the automobile body through buffer spring is indirect to the promotion of rebound piston, thereby realize the air chamber compression through buffer spring is indirect, make the air chamber compression become more gentle, extension spring one end fixed connection rebound piston bottom, the other end and rebound inner tube bottom are connected, when the air chamber is compressed, extension spring is in tensile state, make the resilience can be rapider, play the cushioning effect. Utilize extension spring and buffer spring to realize the elastic compression and the resilience of air chamber in this embodiment to make the damped regulation of kick-backing more smooth and gentle, too big fluctuation can not appear, reduce the great vibration among the damping accommodation process, improve the user comfort level of riding. The utility model provides a damping adjustment device of mountain bike shock absorber and this kind of shock absorber cooperation result of use are better.

The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A damping adjusting device of a mountain bike shock absorber is characterized by comprising a three-axis acceleration sensor, a controller, an angular displacement sensor and an actuator;

2. The mountain bike damper damping adjustment device as claimed in claim 1, wherein the actuator is a stepping motor.

3. The damping adjustment device of a mountain bike shock absorber as claimed in claim 1, wherein the triaxial acceleration sensor is electrically connected to the controller sequentially through a low pass filter circuit, an amplifier circuit and an analog-to-digital conversion circuit.

4. The damping adjustment device of a mountain bike shock absorber as claimed in claim 1, wherein the number of the adjustment knobs is two, and the two adjustment knobs are respectively a compression damping knob and a rebound damping knob;

the number of the angular displacement sensors is two, the two angular displacement sensors are respectively a compression angular displacement sensor and a rebound angular displacement sensor, the compression angular displacement sensors are mounted on the compression damping knob and are used for detecting a real-time compression rotation angle of the compression damping knob, the rebound angular displacement sensors are mounted on the rebound damping knob and are used for detecting a real-time rebound rotation angle of the rebound damping knob, and the two angular displacement sensors are electrically connected with the controller;

the number of the actuators is two, the two actuators are respectively a compression actuator and a rebound actuator, the compression actuator is in transmission connection with a rotating shaft of the compression damping knob, the rebound actuator is in transmission connection with a rotating shaft of the rebound damping knob, and both the actuators are electrically connected with the controller; the controller is used for sending a compression angle adjusting value to the compression actuator according to the horizontal acceleration, the vertical acceleration and the real-time compression rotation angle, the compression actuator is used for carrying out compression angle adjustment according to the compression angle adjusting value, the controller is used for sending a rebound angle adjusting value to the rebound actuator according to the horizontal acceleration, the vertical acceleration and the real-time rebound rotation angle, and the rebound actuator is used for carrying out rebound angle adjustment according to the rebound angle adjusting value.