WO2018192364A1

WO2018192364A1 - Volume-adjustable air horn system for truck

Info

Publication number: WO2018192364A1
Application number: PCT/CN2018/081758
Authority: WO
Inventors: 孙元; 孔德星; 梁文芝
Original assignee: 安徽江淮汽车集团股份有限公司
Priority date: 2017-04-17
Filing date: 2018-04-03
Publication date: 2018-10-25
Also published as: SG11201809944RA

Abstract

Disclosed is a volume-adjustable air horn system for a truck. The system comprises an air horn (1), a horn air intake duct (2), an air flow-controlling solenoid valve (4), a solenoid valve intake duct (3), and a volume control switch (5). The volume control switch (5) is connected to an electromagnetic coil connector (44) of the air flow-controlling solenoid valve (4) via a wire (45). The solenoid valve intake duct (3) is connected to an air source at one end, and to an air inlet of the air flow-controlling solenoid valve (4) at the other end. The horn air intake duct (2) is connected to an air outlet of the air flow-controlling solenoid valve (4) at one end, and to an air inlet of the air horn (1) at the other end. The system of the present invention can drive, according to the magnitude of a current signal input by a volume control switch, an electromagnetic coil in an air flow-controlling solenoid valve to generate a corresponding magnitude of a magnetic field, such that a piston is driven to displace by a corresponding amount, and thus the size of a cross section of an air passage is controlled so as to adjust an air flow into an air horn. In this way, a driver can arbitrarily adjust a volume of an air horn according to a running environment of a vehicle and actual requirements.

Description

Truck air horn system with adjustable volume

Technical field

The invention belongs to the technical field of automobile parts, and particularly relates to a truck air horn system with adjustable sound volume.

Background technique

The commonly used whistle system of trucks is the air horn whistle system. In the truck driving, the whistle warning of possible hidden dangers is carried out to ensure the safety of driving.

The sound volume of the existing truck air horn whistle system is generally large, and the volume of sound cannot be adjusted according to the surrounding environment. When the vehicle is driving in the city area, the pedestrians around the vehicle are denser, and the residential area is closer to the road where the vehicle is located. When the vehicle whistle, it causes excessive noise interference or even noise damage to surrounding people and residential areas.

Summary of the invention

The object of the present invention is to provide a truck air horn system with adjustable sound volume to solve the problem that the sound volume of the truck air horn cannot be adjusted in the prior art and cannot be adapted to the surrounding situation.

The invention is achieved by the following technical solutions:

A truck air horn system with adjustable sound volume, including an air horn, a horn intake pipe, a gas volume control solenoid valve, a solenoid valve intake pipe and a sound volume control switch;

The sound volume control switch is connected to the electromagnetic coil of the gas quantity control solenoid valve through a wire; one end of the electromagnetic valve intake pipe is connected to the air source, and the other end is connected to the air inlet of the gas volume control solenoid valve, the speaker One end of the intake pipe is connected to an air outlet of the air volume control solenoid valve, and the other end of the air intake pipe is connected to an air inlet of the air horn.

The gas quantity control solenoid valve comprises a solenoid valve housing, a solenoid valve outlet port, a solenoid valve intake port, an electromagnetic coil interface, a first spring, a piston, an electromagnetic coil and a shift fork;

The solenoid valve outlet port is disposed on the solenoid valve housing and is connected to an air outlet of the solenoid valve, the solenoid valve intake port is disposed on the solenoid valve body, and the solenoid valve is An air inlet connection; the electromagnetic coil interface is electrically connected to the electromagnetic coil through a wire;

The first spring, the piston, the shift fork and the electromagnetic coil are all disposed in the electromagnetic valve housing; an air passage is disposed in the electromagnetic valve housing, and the air passage respectively connects the electromagnetic An air outlet of the valve and an air inlet of the solenoid valve; the air passage turns on or off the air passage by sliding of the piston;

a piston slide rail is disposed in the solenoid valve housing, the piston is movably disposed in the piston slide rail, one end of the first spring is opposite to an inner wall of the solenoid valve housing, and the other end is opposite to the piston One end is offset;

a shifting rail and an electromagnetic coil accommodating portion are further disposed in the electromagnetic valve housing; the shifting fork slides in the shifting rail, and the electromagnetic coil is disposed in the electromagnetic coil receiving portion;

One end of the shifting fork is snap-connected with the piston, and the other end of the shifting fork is movably engaged with the electromagnetic coil.

An outer surface of the piston is provided with a groove, the groove is perpendicular to an axial center line of the piston, and an end of the fork that is engaged with the piston is provided with an opening, and the opening is engaged with the In the groove, an iron suction cup is disposed at the corresponding position of the fork and the electromagnetic coil.

The shifting fork includes a fork body, and the opening is disposed at an upper end of the fork body, and the opening has a circular arc shape and cooperates with the groove;

A guide slider is disposed on each side of the fork body, the guide slider is slidably engaged with the fork slide rail, and the fork body and the two guide sliders are in a cross shape, and the iron The suction cup is disposed at the center of the cross.

The fork body is perpendicular to an axial centerline of the piston.

The solenoid valve assembly further includes a gas volume control switch electrically connected to the electromagnetic coil interface by a control switch joint.

The volume control switch includes a control switch connector, a first electrode, a second electrode, a second spring, and a lead post; the first electrode and the second electrode are each connected to the control switch connector by a wire, wherein the The first electrode is a movable end, the second electrode is a fixed end, the second electrode is a hollow tube structure whose one end is closed and the other end is reduced in diameter, and the spring is disposed in the hollow tube of the second electrode, One end of the lead post is disposed in the hollow tube of the second electrode, and the other end of the lead post protrudes from the hollow tube of the second electrode and is movably connected to the first electrode.

The longitudinal cross section of the lead post is approximately trapezoidal, including a base and a binding post, the diameter of the circumscribed circle of the base is larger than the diameter of the circumcircle of the binding post; the base is electrically connected to the binding post;

A top end of the terminal is in conductive communication with the first electrode, and the base is in conductive communication with an inner side of the second electrode.

The beneficial effects of the invention are:

The gas quantity control electromagnetic valve of the technical solution controls the electromagnetic coil in the gas quantity control electromagnetic valve according to the current magnitude signal input by the sound quantity control switch to generate a corresponding magnetic field, thereby driving the piston to move the corresponding displacement amount, thereby controlling the cross-sectional size of the air passage to achieve adjustment The effect of entering the air volume of the air horn. The larger the current input to the gas solenoid valve, the larger the air passage cross section, and the larger the horn sound volume, the smaller the current is, the smaller the sound volume is, so that the driver can arbitrarily adjust the air horn sound volume according to the environment and needs of the vehicle. the size of.

DRAWINGS

Figure 1 is a schematic view of an air horn system of the present invention;

Figure 2 is a schematic view showing the external structure of the gas control solenoid valve;

Figure 3 is a schematic view showing the structure of the gas control solenoid valve to remove the rear case;

Figure 4 is a schematic structural view of a solenoid valve housing;

Figure 5 is a schematic view of the structure of the piston;

Figure 6 is a schematic view showing the structure of the fork;

Figure 7 is a schematic view of the cooperation of the piston and the fork;

Figure 8 is a schematic view showing the closed state of the gas amount control solenoid valve;

Figure 9 is a schematic view showing a partially opened state of the gas amount control solenoid valve;

Figure 10 is a schematic view showing the state in which the gas amount control solenoid valve is fully opened;

Figure 11 is a schematic structural view of a sound volume control switch;

Figure 12 is a schematic view showing the sound volume control switch in an open state;

Figure 13 is a schematic view showing the sound quantity control switch in an on state;

Figure 14 is a schematic diagram of the circuit of the air horn system.

Description of the reference numerals

1 air horn, 2 horn intake pipe, 3 solenoid valve intake pipe, 4 gas volume control solenoid valve, 5 volume control switch, 6 power supply, 41 solenoid valve housing, 42 solenoid valve outlet port, 43 solenoid valve inlet port, 44 electromagnetic Coil interface, 45 wires, 46 first spring, 47 pistons, 48 forks, 49 solenoids, 50 piston slides, 51 solenoid coil housing, 52 fork rails, 53 air passages, 471 grooves, 481 forks Body, 482 opening, 483 guide slider, 484 iron suction cup, 501 control switch joint, 502 first electrode, 503 lead post, 504 second electrode, 505 second spring.

Detailed ways

The following is a detailed description of the technical solutions of the present invention by way of examples, and the following embodiments are merely illustrative and are not to be construed as limiting the technical solutions of the present invention.

The present application provides a truck air horn system with adjustable sound volume, as shown in FIGS. 1 to 14 , including an air horn 1 , a horn intake pipe 2 , a gas volume control solenoid valve 4 , a solenoid valve intake pipe 3 , and a sound volume control switch 5 . .

The air horn is a sound source, and the high-pressure gas provided by the horn intake pipe drives the sound; the function of the gas control solenoid valve is to drive the electromagnetic coil to generate a corresponding-sized magnetic field according to the current input signal of the sound quantity control switch, thereby driving the piston to move correspondingly. The amount, thus controlling the size of the air passage section, to adjust the amount of air entering the air horn.

The volume control switch is in the driver's steering wheel. The driver can select the strength of pressing the control switch according to the surrounding road condition. The more urgent the situation, the more the stroke is pressed by the switch. The larger the current of the input air volume control solenoid valve, the more the air passage section is. Large, so the horn sound volume is larger, correspondingly, when the situation is not urgent, the switch press stroke is small, the sound volume is small, and will not cause excessive interference to the surrounding pedestrians.

The system can obtain a pressure-stable high-pressure gas into the gas volume control solenoid valve from the air reservoir of the truck.

The volume control switch 5 is connected to the electromagnetic coil interface 44 of the gas amount control solenoid valve 4 through a wire and a control switch joint 501; one end of the solenoid valve intake pipe 3 is connected to the gas source, and the other end is connected to the solenoid valve intake port 43, and the horn intake pipe 2 One end is connected to the solenoid valve outlet port 42, and the other end of the horn intake pipe 2 is connected to the air inlet of the horn 1.

The gas amount control solenoid valve 4 includes a solenoid valve housing 41, a solenoid valve outlet port 42, a solenoid valve intake port 43, a solenoid coil port 44, a first spring 46, a piston 45, an electromagnetic coil 49, and a shift fork 48.

As shown in the figure, in the present application, the solenoid valve housing has a shell-shaped structure, and a cavity is disposed in the solenoid valve housing, and the solenoid valve outlet port is disposed on the solenoid valve housing and connected to the air outlet of the solenoid valve. The electromagnetic valve intake port is disposed on the electromagnetic valve body and connected to the intake port of the solenoid valve; the electromagnetic coil interface 44 is electrically connected to the electromagnetic coil 49 through the wire 45.

The first spring, the piston, the fork and the electromagnetic coil are all disposed in the electromagnetic valve housing; the electromagnetic valve housing 41 is provided with a piston slide rail 50 and an air passage 53, and the air passage is respectively connected to the air outlet of the electromagnetic valve and the electromagnetic valve. Air port; the axial centerline of the piston slide is perpendicular to the axial centerline of the airway, which ensures that the piston can completely close the airway and prevent air leakage.

The piston is disposed in the piston slide, one end of the first spring abuts against the inner wall of the solenoid valve housing, and the other end abuts against one end of the piston; the air passage turns on or off the air passage or partially opens the air passage by sliding of the piston.

A shift rail 52 and an electromagnetic coil accommodating portion 51 are further disposed in the electromagnetic valve housing; the shifting fork slides in the shift rail, and the electromagnetic coil is disposed in the electromagnetic coil accommodating portion.

One end of the fork is snap-connected with the piston, and the other end of the fork is movably engaged with the electromagnetic coil.

The outer surface of the piston is provided with a ring groove 471 which is perpendicular to the axial center line of the piston, so as to ensure that the piston does not move when moving along the piston slide rail, preventing the air flow from being unstable.

An opening 482 is disposed at one end of the fork and the piston, and the opening is engaged with the groove. The iron suction cup 484 is disposed at the corresponding position of the fork and the electromagnetic coil, and the electromagnetic material can be energized by the iron material. attract. In the present embodiment, the iron chuck is circular, and its center coincides with the axial center line of the electromagnetic coil, so that the efficiency of the attraction of the electromagnetic coil to the iron chuck can be improved.

The fork 48 includes a fork body 481. The upper end of the fork body is provided with an opening 482. The opening has a circular arc shape and cooperates with the groove 471 to move the piston by the movement of the fork.

A guide slider 483 is disposed on each side of the fork body, the guide slider is slidably engaged with the fork slide rail, the fork body and the two guide sliders are in a cross shape, and the iron suction cup 484 is disposed at the center of the cross type .

The axial center line of the vertical piston of the fork body ensures that the force of the piston is stabilized when the fork moves with the iron suction cup.

The gas volume control solenoid valve further includes a gas volume control switch, and the gas volume control switch is electrically connected to the electromagnetic coil interface through the control switch joint. The attractiveness to the iron chuck is changed by changing the magnitude of the current that is turned on by the stroke of the gas amount control switch, so that the opening degree of the air passage can be controlled.

The volume control switch 5 includes a control switch connector 501, a first electrode 502, a second electrode 504, a second spring 505, and a lead post 503; the first electrode and the second electrode are respectively connected to the control switch connector through a wire, wherein the first electrode is The movable end, the second electrode is a fixed end, the second electrode is a hollow tube structure whose one end is closed and the other end is reduced in diameter, the spring is disposed in the hollow tube of the second electrode, and one end of the lead post is disposed in the hollow tube of the second electrode, the wire The other end of the column extends out of the hollow tube of the second electrode and is movably connected to the first electrode.

The longitudinal section of the wire column is approximately trapezoidal, including a base and a terminal. The diameter of the circumscribed circle of the base is larger than the diameter of the circumscribed circle of the terminal; the base is electrically connected to the terminal.

The top end of the terminal is in conductive communication with the first electrode, and the base is in conductive communication with the inner side of the second electrode.

When the gas quantity control solenoid valve is in the closed state, the electromagnetic coil is not energized at this time, and there is no suction force on the iron suction cup of the shift fork, and the piston is at the end of the piston slide rail under the elastic force of the first spring, and the piston end completely blocks the air outlet port. The letter, no airflow through the horn intake pipe, at this time the horn does not sound.

The gas quantity control solenoid valve is partially open. At this time, the electromagnetic coil is energized, and the electromagnetic suction cup on the fork has a certain electromagnetic suction force, and the fork is driven to overcome a part of the first spring elastic force to slide to one side, and the piston is synchronized by the fork. When sliding, the air outlet is partially opened, and a certain amount of air passes, and the sound volume of the speaker is less than the maximum sound volume.

The gas control solenoid valve is in the fully open state. At this time, the electromagnetic coil is energized, the current amount reaches the maximum, and the maximum electromagnetic attraction is applied to the iron suction cup on the fork, and the fork is driven to overcome a part of the first spring elastic force to slide to one side, and the piston is in the The fork is driven to slide synchronously, the air outlet is fully opened, and the air volume is maximum. At this time, the sound volume of the speaker is the maximum sound volume.

The sound volume control switch is installed in the steering wheel of the driver. The first electrode is a movable end, the second electrode is a fixed end, and the second electrode is made of a high resistivity material, and functions as a variable resistor in the circuit system. The second electrode slides inside, and the lead post is electrically connected to the inside of the second electrode only through the base; the second spring has an upward elastic force on the lead post, which ensures that the lead post can be restored to the original position after use; the first electrode and the lead post There is a certain gap between the strokes.

When the horn state is not used, there is a gap between the first electrode and the lead post, and the circuit is in an open state.

Although the technical solutions of the present invention have been described in detail, it is to be understood by those skilled in the art that modifications, substitutions, and modifications of the present invention are all within the scope of the present application.

Claims

The utility model relates to a truck air horn system with adjustable sound volume, which comprises: an air horn, a horn intake pipe, a gas volume control electromagnetic valve, a solenoid valve intake pipe and a sound volume control switch;

The sound volume control switch is connected to the electromagnetic coil of the gas quantity control solenoid valve through a wire; one end of the electromagnetic valve intake pipe is connected to the air source, and the other end is connected to the air inlet of the gas volume control solenoid valve, the speaker One end of the intake pipe is connected to an air outlet of the air volume control solenoid valve, and the other end of the air intake pipe is connected to an air inlet of the air horn.
The truck horn system with adjustable volume and volume according to claim 1, wherein the gas quantity control solenoid valve comprises a solenoid valve housing, a solenoid valve outlet port, a solenoid valve intake port, an electromagnetic coil interface, and a first Springs, pistons, solenoids and shifting forks;

The solenoid valve outlet port is disposed on the solenoid valve housing and is connected to an air outlet of the solenoid valve, the solenoid valve intake port is disposed on the solenoid valve body, and the solenoid valve is An air inlet connection; the electromagnetic coil interface is electrically connected to the electromagnetic coil through a wire;

The first spring, the piston, the shift fork and the electromagnetic coil are all disposed in the electromagnetic valve housing; an air passage is disposed in the electromagnetic valve housing, and the air passage respectively connects the electromagnetic An air outlet of the valve and an air inlet of the solenoid valve; the air passage turns on or off the air passage by sliding of the piston;

a piston slide rail is disposed in the solenoid valve housing, the piston is movably disposed in the piston slide rail, one end of the first spring is opposite to an inner wall of the solenoid valve housing, and the other end is opposite to the piston One end is offset;

a shifting rail and an electromagnetic coil accommodating portion are further disposed in the electromagnetic valve housing; the shifting fork slides in the shifting rail, and the electromagnetic coil is disposed in the electromagnetic coil receiving portion;

One end of the shifting fork is snap-connected with the piston, and the other end of the shifting fork is movably engaged with the electromagnetic coil.
The truck horn system with adjustable volume of sound according to claim 2, wherein the outer surface of the piston is provided with a groove, the groove being perpendicular to the axial center line of the piston, An end of the fork that is engaged with the piston is provided with an opening, and the opening is engaged with the groove, and an iron suction cup is disposed at the corresponding position of the fork and the electromagnetic coil.
The truck horn system with adjustable volume and volume according to claim 3, wherein: the shift fork comprises a fork body, and the opening is provided at an upper end of the fork body, the opening being an arc Forming a match with the groove;

A guide slider is disposed on each side of the fork body, the guide slider is slidably engaged with the fork slide rail, and the fork body and the two guide sliders are in a cross shape, and the iron The suction cup is disposed at the center of the cross.
The truck horn system with adjustable volume of sound according to claim 4, wherein said fork body is perpendicular to an axial centerline of said piston.
The audible volume adjustable truck air horn system according to claim 2, wherein the solenoid valve assembly further comprises a gas volume control switch, and the gas volume control switch is electrically connected to the electromagnetic coil interface through a control switch joint. .
The adjustable air volume horn system according to claim 1, wherein the volume control switch comprises a control switch joint, a first electrode, a second electrode, a second spring and a lead post; The electrode and the second electrode are connected to the control switch connector through a wire, wherein the first electrode is a movable end, the second electrode is a fixed end, and the second electrode is closed at one end and reduced at the other end a hollow tube structure, the spring is disposed in the hollow tube of the second electrode, one end of the lead post is disposed in the hollow tube of the second electrode, and the other end of the lead post protrudes from the second electrode a hollow tube and is movably connected to the first electrode.
The adjustable air volume horn system of claim 7 is characterized in that: the longitudinal section of the conductor post is approximately trapezoidal, comprising a base and a binding post, the circumscribed circle diameter of the base is larger than the binding post a circumscribed circle diameter; the base is in conductive communication with the terminal;

A top end of the terminal is in conductive communication with the first electrode, and the base is in conductive communication with an inner side of the second electrode.