A throttle shaft assembly for a motorcycle throttle

Abstract

The utility model discloses a kind of motorcycle throttle for throttle shaft assembly, including valve shaft body, control seat, sleeve cylinder, sliding sleeve, top ring, grating wheel and photoelectric sensor. Valve shaft body is externally provided with the sliding sleeve of slidable, sliding sleeve is abutted by spring with sleeve cylinder inner wall, and sliding pin is set on its surface;Valve shaft body end is connected with top ring, and top ring is equipped with inclined wedge structure with sliding pin sliding abutment. Control seat is equipped with photoelectric sensor, for angle detection to grating wheel set outside sliding sleeve. The structure is deflected by pull rope to drive valve shaft body, realizes manual throttle control, and sliding sleeve and top ring cooperate to complete reset function, and realize throttle angle electric signal output by sensor. The utility model is compact in structure, reliable in action, with automatic reset and electronic feedback capability, improve the precision and reliability of motorcycle throttle control.

Description

Technical Field

[0001] This utility model relates to the field of throttle body technology, specifically a throttle body shaft assembly for motorcycle throttle bodies. Background Technology

[0002] In existing technologies, motorcycle throttles, as key devices for regulating engine intake air volume, widely employ mechanical cable-driven structures or electronic throttle systems. In the mechanical structure, the rider pulls a cable via the throttle lever, thereby rotating the throttle shaft and controlling the throttle's opening and closing. This type of structure is simple, reliable, has a direct response, and is relatively inexpensive. However, due to the lack of position feedback capability, the vehicle control system cannot obtain the actual throttle opening data, resulting in limited fuel control accuracy and hindering efficient fuel management and emission optimization.

[0003] To address these issues, some vehicle models have adopted electronic throttle solutions equipped with angle sensors. In a typical configuration, the throttle shaft is driven by an electric actuator, and its opening changes are detected by a potentiometer, Hall sensor, or photoelectric element. While this solution offers high control precision and automation capabilities, the overall system structure is complex, heavily reliant on the electronic control components, and places high demands on the motorcycle's power system, electronic control unit, and software control strategies, making it unsuitable for widespread adoption in small-displacement or economy vehicles.

[0004] Furthermore, in some existing manual cable control systems, throttle valve reset often relies on the tension of the cable itself or a separately installed return spring. Due to limited installation space or insufficient precision, this can easily lead to incomplete return or throttle valve jamming, affecting the driving experience and driving safety.

[0005] Therefore, the existing technology still lacks a throttle shaft assembly structure that retains the advantages of manual control while possessing a highly reliable return function and supporting angle electrical signal output, in order to meet the needs of a low-cost, highly reliable, and precisely feedback-oriented throttle control system. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted by this utility model is as follows: a throttle shaft assembly for a motorcycle throttle body, comprising: a valve shaft and a control seat, a cylinder fixedly mounted on the surface of the control seat, a photoelectric sensor fixedly mounted on the inner side of the cylinder, a top ring rotatably mounted on the inner side of the cylinder and fixedly connected to the end of the valve shaft, a sliding sleeve located inside the cylinder slidably sleeved on the surface of the valve shaft, and a spring sleeved on one side of the sliding sleeve, the spring being located inside the cylinder and abutting against its inner wall, a sliding pin fixedly mounted on the surface of the sliding sleeve, and a wedge fixedly mounted on one side of the top ring, slidingly abutting against the surface of the sliding pin. This structure, through the wedge engagement between the sliding sleeve and the top ring, realizes the linkage deflection and elastic reset of the valve shaft, improving the stability and reliability of throttle operation.

[0008] In one possible implementation, the control base surface is provided with an interface for electrical connection to the end of a photoelectric sensor, used for signal output from the photoelectric sensor. This structure achieves efficient integration with the vehicle control system through a pre-defined interface, facilitating signal transmission and feedback and improving system adaptability.

[0009] In one possible implementation, the surface of the sliding sleeve is provided with a grating wheel, and the end of the photoelectric sensor is radially aligned with the surface of the grating wheel. Specifically, the grating wheel is used to monitor the deflection angle between the valve shaft and the grating wheel in real time, and the corresponding angle change is converted into an electrical signal output to display the state of the valve shaft. This structure achieves digital recognition of the actual throttle opening through angle detection feedback, improving the accuracy and response speed of the vehicle's throttle control.

[0010] In one possible implementation, a cable control disc is fixedly mounted to one end of the valve stem, and a pull rope is wound and fixed on the surface of the cable control disc. Specifically, manual control can be achieved by pulling the cable to deflect the valve stem. This structure retains the advantages of traditional cable-operated throttle valves, such as direct response and simple control, and is suitable for mechanical control applications.

[0011] In one possible implementation, one end of the spring abuts against the cylinder surface, driving the spring to elastically contact the wedge surface, thereby achieving the automatic return function of the sliding sleeve and valve shaft. This structure optimizes the return path and force pattern, ensuring that the throttle valve can quickly and accurately return to its original position after control is disengaged, enhancing driving safety.

[0012] In one possible implementation, the wedge surface is inclined, and its central angle is equal to 90 degrees. This structural design ensures smooth engagement between the sliding pin and the wedge, high force transmission efficiency, and facilitates minimizing sliding resistance and optimizing elastic return performance.

[0013] The beneficial effects achieved by this utility model are as follows:

[0014] 1. In this utility model, the valve shaft is linked by the wedge structure between the sliding sleeve and the top ring, and the spring provides the return function. The structure is compact and can realize the manual opening and automatic reset of the throttle without external electric drive, which effectively improves the control reliability and operation convenience of the motorcycle throttle.

[0015] 2. In this utility model, a grating wheel is provided on the outside of the sliding sleeve, which works with a photoelectric sensor installed in the cylinder to realize the angle sensing function. It can convert the deflection angle of the valve shaft into an electrical signal output in real time, providing accurate throttle opening feedback, which facilitates the throttle adjustment of the vehicle's electronic control system and improves control accuracy and response speed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the valve shaft and control seat structure according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the cylinder sleeve according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the surface structure of the sliding sleeve and top ring according to an embodiment of the present invention.

[0020] Figure label:

[0021] 100. Valve shaft; 110. Control disc by wire;

[0022] 200, Control seat; 210, Sleeve cylinder; 220, Sliding sleeve; 230, Top ring; 240, Grating wheel; 250, Photoelectric sensor; 211, Spring; 221, Sliding pin; 231, Wedge. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0024] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0025] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a throttle shaft assembly for a motorcycle throttle valve.

[0026] Combination Figures 1-4As shown, this utility model provides a throttle shaft assembly for a motorcycle throttle, specifically including a valve shaft 100 and a control seat 200. The valve shaft 100 is disposed within the motorcycle throttle mechanism and is the core transmission component for the opening and closing movement of the throttle.

[0027] A control cable 110 is fixedly mounted on one end of the valve shaft 100, and a pull rope is wound and fixed on the surface of the control cable 110. The user can manually pull the control cable 110 by pulling the rope, which can drive the valve shaft 100 to deflect. Preferably, the valve shaft 100 can be deflected by 90 degrees from its normally open position to achieve throttle valve closing control. When the user releases the pull rope, the valve shaft 100 can automatically return to its original position under the action of the elastic component, achieving automatic throttle valve reset.

[0028] The control base 200 serves as the structural support and component positioning base, and a sleeve cylinder 210 is fixedly mounted on its surface. The sleeve cylinder 210 has a cylindrical structure with a hollow cavity to accommodate internal components such as the sliding sleeve 220 and the spring 211. A photoelectric sensor 250 is fixedly mounted on the inner side of the sleeve cylinder 210 to detect the throttle angle.

[0029] The sliding sleeve 220 is slidably fitted onto the outer surface of the valve shaft 100, and a spring 211 is installed on one side of the sliding sleeve 220. The spring 211 is located inside the cylinder 210, with one end abutting against the sliding sleeve 220 and the other end abutting against the inner wall of the cylinder 210, and elastically applying force to the sliding sleeve 220 to provide the valve shaft 100 with an automatic return function.

[0030] A sliding pin 221 is fixedly installed on the outer surface of the sliding sleeve 220. The sliding pin 221 acts as a driven member and engages with the wedge 231 on the top ring 230. The top ring 230 is rotatably disposed within the cylinder 210 and is fixedly connected to the end of the valve shaft 100, rotating together with the valve shaft 100. A wedge 231 is fixedly disposed on one side of the top ring 230. The wedge 231 has an inclined surface structure with a central angle of 90 degrees, used to form a sliding contact engagement with the surface of the sliding pin 221. During the deflection movement of the valve shaft 100, the wedge 231 contacts the sliding pin 221 and compresses the spring 211; when the pull rope is released, the spring 211 pushes the wedge 231 and the top ring 230 back to their original positions through the sliding pin 221, thereby driving the valve shaft 100 to rotate and achieve automatic return.

[0031] To achieve angle feedback detection, a grating wheel 240 is provided on the outer surface of the sliding sleeve 220, and the grating wheel 240 rotates in conjunction with the valve shaft 100. The photoelectric sensor 250 is disposed inside the sleeve cylinder 210, opposite to the surface of the grating wheel 240, and its output end is connected to the vehicle control system through an electrical connection interface provided in the control seat 200. The photoelectric sensor 250 can collect the rotation angle change of the grating wheel 240 in real time and output an electrical signal to the control system to determine the deflection angle of the valve shaft 100, thereby realizing electronic feedback control of the throttle opening.

[0032] In summary, through the combined arrangement of structures such as valve shaft 100, control disc 110, control seat 200, cylinder 210, sliding sleeve 220, top ring 230, grating wheel 240, photoelectric sensor 250, spring 211, sliding pin 221, and wedge 231, the functions of manual control, automatic return, and opening detection of the motorcycle throttle are realized. It has the advantages of compact structure, sensitive response, and high control precision.

[0033] Working principle and usage process of this utility model:

[0034] This invention achieves the adjustment and control of the motorcycle throttle valve through the following coordinated structure:

[0035] 1. Mechanical drive and angle sensing linkage mechanism: The valve shaft 100 is kept in the normally open state. The valve shaft 100 can be pulled by the pull rope on the control panel 110 to deflect 90 degrees, and simultaneously drive the top ring 230 to deflect, so as to realize manual control of the valve shaft 100 to deflect and close.

[0036] The sliding sleeve 220 is slidably connected to the valve shaft 100, and the sliding pin 221 on its surface contacts and engages with the wedge 231 on the top ring 230, causing relative movement and compressing the spring 211;

[0037] During compression, the spring 211 generates a return force, which dynamically adjusts and balances the position of the sliding sleeve 220. The sliding pin 221 on the surface of the sliding sleeve 220 abuts against the surface of the wedge 231, thereby pushing the top ring 230 and the valve shaft 100 to return to their original position.

[0038] 2. Displacement / Angle Sensing Feedback System: A grating wheel 240 is provided on the outside of the sliding sleeve 220, and a photoelectric sensor 250 is arranged opposite to the grating wheel 240. When the valve shaft 100 rotates, the grating wheel 240 also deflects. The photoelectric sensor 250 collects the change in deflection angle in real time and outputs an electrical signal to provide feedback on the opening and closing status of the throttle. The control base 200 is provided with an electrical connection interface for the photoelectric sensor 250 to transmit signals to the vehicle control system, realizing electronic monitoring and precise control of the throttle opening.

[0039] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A throttle shaft assembly for a motorcycle throttle valve, characterized in that, include: Valve shaft (100) and control seat (200), wherein a sleeve cylinder (210) is fixedly mounted on the surface of the control seat (200), a photoelectric sensor (250) is fixedly mounted on the inner side of the sleeve cylinder (210), and a top ring (230) is rotatably mounted on the inner side of the sleeve cylinder (210) and fixedly connected to the end of the valve shaft (100). The valve stem (100) is slidably sleeved with a sliding sleeve (220) located inside the cylinder (210), and a spring (211) is sleeved on one side of the sliding sleeve (220). The spring (211) is located inside the cylinder (210) and abuts against the inside of the cylinder (210). A sliding pin (221) is fixedly installed on the surface of the sliding sleeve (220), and a wedge (231) that slides against the surface of the sliding pin (221) is fixedly installed on one side of the top ring (230).

2. The throttle shaft assembly for motorcycle throttle valves according to claim 1, characterized in that, The surface of the control base (200) is provided with an interface for electrical connection to the end of the photoelectric sensor (250) for signal output of the photoelectric sensor (250).

3. The throttle shaft assembly for a motorcycle throttle valve according to claim 1, characterized in that, The surface of the sliding sleeve (220) is provided with a grating wheel (240), and the end of the photoelectric sensor (250) is radially aligned with the surface of the grating wheel (240).

4. The throttle shaft assembly for a motorcycle throttle valve according to claim 1, characterized in that, One end of the valve shaft (100) is fixedly mounted with a wire control disc (110), and a pull rope is wound and fixed on the surface of the wire control disc (110).

5. The throttle shaft assembly for a motorcycle throttle valve according to claim 1, characterized in that, One end of the spring (211) abuts against the surface of the cylinder (210) to drive the spring (211) to elastically abut against the surface of the wedge (231).

6. The throttle shaft assembly for a motorcycle throttle valve according to claim 1, characterized in that, The surface of the wedge (231) is inclined and the central angle is equal to 90 degrees.

Images