CN87204995U

CN87204995U - Double-sound three sound stages exhaust gas trumpet

Info

Publication number: CN87204995U
Application number: CN 87204995
Authority: CN
Inventors: 孔繁衍
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-03-26
Filing date: 1987-03-26
Publication date: 1988-01-27

Abstract

Disclosed is a double-sound three sound stages exhaust gas trumpet which is applicable to motor vehicles with a gas pump structure, particularly applicable to be used for safety alarm signal in the process of running of motor cars. The gas flow control mechanism of the utility model is manually operated and can control gas flow arbitrarily. The double-sound three sound stages exhaust gas trumpet is able to sound on three sound levels which are high lever, middle lever, and low level and can be generally used at the time of driving in urban and rural areas without the arrangement of an electrical trumpet. The utility model has the advantages of convenient operation, low cost, no power consumption, not strict requirements for working gas pressure, sonification on multiple sound levels, firmness, and convenient maintenance. The utility model is a new-type exhaust gas trumpet.

Description

Double-sound three sound stages exhaust gas trumpet

The utility model is a kind of exhaust horn that is used to have the self-propelled vehicle of air pump structure, is specially adapted to automobile, makes the usefulness of traffic safety warning signal.

The airflow control mechanism of automobile double-tone exhaust horn commonly used is a foot-operated ventilation switch, operates not nimble.A sound level can only be sent out by pronunciation mechanism, and volume is bigger, only is suitable for country, mountain forest, the outer suburbs driving is used, must the little dynamic loud-speaker of the amount of dubbing in the city driving, thereby cost height, power consumption.And the sound diaphragm of loudspeaker commonly used is copper diaphragm, and is tighter to the requirement of operating air pressure, and easy deformation is damaged, and repairs relatively difficulty.

Task of the present utility model is to design a kind of mechanism that can control the air-flow size, thereby makes loudspeaker arbitrarily send high, medium and low three sound levels, does not need other distribution loudspeaker, and is general in the time of just can driving a vehicle in town and country.Operate nimble, cost is low, not power consumption ， And design a kind of tight to the operating air pressure requirement, be difficult for deformed damaged, maintenance also eaily sound diaphragm substitute original copper diaphragm.

The airflow control mechanism of this double-tone three sound level exhaust horns is valve bodies of being made up of three valves, inlet suction port communicates with top formula valve, ventilation button and valve spring are respectively at the two ends of top formula valve, rotation gate is parallel with top formula valve, they have air flue to communicate, the draught regulation knob is by the top of screw retention at rotation gate, the lower part of rotation gate is a cylinder, have seven holes on it: there is individual centre hole (F) bottom surface, end face has individual knock hole (G), in spring and steel ball are arranged.Five holes that the side has caliber size to differ, a side are arranged with A, B, three holes of C, and its offside is arranged with two holes of D, E, have slot type air flue (K) to link to each other therebetween, and C hole and D hole are straight-through, and bore equates.Except that knock hole (G), A, B, C, D, six holes of E, F all are air flues, and A, B, E hole all communicate with centre hole (F), and the caliber size relation in these six holes is F=A＞B＞C=D＞E.Vertical with rotation gate have an individual automatic exhaust valve, in spring and steel ball are arranged, there is set screw on the top, the internal orifice of automatic exhaust valve is aimed at slot type air flue (K), centre hole (F) communicates with air outlet adapter.

Another characteristics of the present utility model be in the tone chamber lid end be round boss, tone chamber's lid and tone chamber's lid fastening screw nut are screwed in and make on the end of outer tube that to adjust tonequality more convenient.Sound diaphragm is a rubber diaphragm, is difficult for deformed damaged.

The airflow control mechanism of double-tone three sound level exhaust horns can arbitrarily close ventilation stream and control air-flow size, make loudspeaker send high, medium and low three sound levels, general when not needing other distribution loudspeaker just can drive a vehicle in town and country, cost is low, not power consumption, the operation nimble, tonequality is easy to adjust.Use rubber diaphragm not tight to the requirement of operating air pressure, not fragile, it is also easy to keep in repair.

Fig. 1 be the airflow control mechanism front elevation (on) and birds-eye view (descending)

Fig. 2 is pronunciation mechanism front elevation

Fig. 3 be the rotation gate front elevation (on) and A '-A " cutaway view (descending)

Airflow control mechanism of the present utility model is the individual valve body of being made up of three valves, the inlet suction port of this valve body (1) communicates with top formula valve (3), ventilation button (5) and the top and bottom of valve spring (2) at top formula valve (3), rotation gate (7) is parallel with top formula valve (3), and they have air flue to communicate.Draught regulation knob (6) is gone up table I, II, three gears of III, is installed in the homonymy of ventilation button (5), is exposed on the operator platform, is convenient to the chaufeur hand operation.Draught regulation knob (6) is screwed the top in rotation gate (7), the lower part of rotation gate (7) is a cylinder, total seven apertures in the human head on it: end face has individual knock hole (G), in retainer spring and steel ball are arranged, there is a centre hole (F) as air flue the bottom surface, five holes (12) that the side also has caliber size to differ as air flue, that is: A, B, three holes of C are arranged as a side, its offside is arranged as two holes of D, E, slot type air flue (K) is arranged between D, the E hole, A, B, E hole communicate with centre hole (F), and C, D hole are straight-through mutually, and bore equates.The bore in above-mentioned six holes using as air flue is descending to be: F=A＞B＞C=D＞E.Vertical with rotation gate (7) have an individual automatic exhaust valve (8), in spring (10) and steel ball (11) are arranged, there is set screw (9) on the top, and the internal orifice of automatic exhaust valve (8) is aimed at slot type air flue (K), and centre hole (F) communicates with air outlet adapter (13).Air outlet adapter (13) with the pronunciation mechanism inlet suction port (14) between be connected by leather hose.The rounded boss in the interior end (16) shape of this pronunciation Yin Shigai of mechanism (15), Yin Shigai (15) and outer tube (19) are for screw thread combines, and sound diaphragm (17) is a rubber diaphragm, can directly make of automobile inner tube.

The air pump air-flow is entered in the inlet suction port (1) of airflow control mechanism by leather hose, press ventilation button (5), compressed valve spring (2), top formula valve (3) is opened, air-flow enters free air diffuser (4), as require the loudspeaker volume little, then draught regulation knob (6) is spun on the I gear, air-flow forwards in the slot type air flue (K) to the D hole through the C hole again, excessive as air-flow, part residual air is discharged by automatic exhaust valve (8), a certain amount of air-flow again by the E hole to centre hole (F), again by air outlet adapter (13) through leather hose to the pronunciation mechanism " T " font inlet suction port (14) in, this strand air-flow enters loudspeaker air chamber (20) again, impact rubber diaphragm (16) and send the little sound of volume, air-flow is finally discharged from speaking trumpet (21).If require the louder volume pronunciation, then be spun on the II gear, air-flow is gone out to centre hole (F) by the A hole, the air-flow maximum, volume is the highest.The requirement volume is moderate, is spun on the III shelves, and air-flow is gone out by B hole commentaries on classics centre hole (F) and got final product.

This exhaust horn is to adjust tonequality with the tightness that Yin Shigai (15) go up to twist at outer tube (19), when adjusting to desirable tonequality, with the tone chamber cover fastening screw nut (18) with the stationkeeping of Yin Shigai (15) it.

Claims

1, a kind of self-propelled vehicle double-tone three sound level exhaust horns that are used to have the air pump structure, form by airflow control mechanism and pronunciation mechanism, the air outlet adapter of airflow control mechanism with the pronunciation mechanism inlet suction port between link to each other with leather hose, it is characterized in that airflow control mechanism is a valve body of being made up of three valves, inlet suction port (1) communicates with top formula valve (3), ventilation button (5) and valve spring (2) are respectively in the top and bottom of top formula valve (3), rotation gate (7) is parallel with top formula valve (3), they have air flue to communicate, draught regulation knob (6) is by the top of screw retention in rotation gate (7), the lower part of rotation gate (7) is a cylinder, have seven holes on it: the center-point of bottom surface has a centre hole (F) as air flue, end face has individual knock hole (G), in retainer spring and steel ball are arranged, five holes (12) that the side has caliber size to differ as air flue, one side is arranged A, B, three holes of C, its offside is arranged with D, two holes of E, slot type air flue (K) is arranged between this two hole, the C hole is straight-through mutually with the D hole, bore equates, centre hole (F) also equates with the A bore open, except that knock hole (G), putting in order of all the other six bore open sizes is F=A＞B＞C=D＞E, A, B, the E hole all communicates with centre hole (F), vertical with rotation gate (7) have an individual automatic exhaust valve (8), in spring (10) and steel ball (11) are arranged, there is set screw (9) on the top, and the internal orifice of automatic exhaust valve (8) is aimed at slot type air flue (K), and centre hole (F) communicates with air outlet adapter (13).

2, double-tone three sound level exhaust horns as claimed in claim 1 is characterized in that the Yin Shigai (15) of said pronunciation mechanism combines for screw thread with outer tube (19).

3, double-tone three sound level exhaust horns as claimed in claim 2 is characterized in that the rounded boss in the interior end of Yin Shigai (15) (16) shape.

4, double-tone three sound level exhaust horns as claimed in claim 1, the sound diaphragm (7) that it is characterized in that pronouncing mechanism is a rubber diaphragm.

5, double-tone three sound level exhaust horns as claimed in claim 4 is characterized in that said rubber diaphragm is the automobile inner tube sheet.