CN2318406Y

CN2318406Y - Purification silencer

Info

Publication number: CN2318406Y
Application number: CN97229334U
Authority: CN
Inventors: 董秀斌
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-10
Filing date: 1997-10-10
Publication date: 1999-05-12
Anticipated expiration: 2007-10-10

Abstract

The utility model relates to a purifying silencer. The utility model is provided with a double-layer casing, sound absorbing materials are arranged between double layers of the double-layer casing, the inlet end of the casing is communicated with an air inlet pipe, an outlet is covered with a purifying box, the outlet end is sheathed with a purifying cavity, and an outlet of the purifying cavity is provided with a porous air discharging pipe; an inner cavity of the casing is divided into three expanding cavities by partition boards, the adjacent two cavities are communicated through a perforating pipe and a sound reducing board is arranged in the expanding cavity with an outlet end. The purifying silencer of the utility model has the advantages of simple structure, good sound absorbing and purifying effect and long service life, and can be widely used as a purifying silencer for motor vehicles, such as automobiles, tractors, motorcycles, etc.

Description

Purifying muffler

The utility model relates to automobile, motorcycle with purifying silencer.

At present, automobile, tractor, agricultural vehicle, the silencing apparatus that motor vehicle such as motorcycle use only possesses noise elimination function, and can not purify for tail gas, cause serious environmental to pollute, in order to address this problem, people have done multiple effort, the patent that a key name is called " automobile exhaust gas purifying baffler " is disclosed as Chinese patent 92215523, introduced the exhaust gas purification baffler that a kind of automobile is used, form by deduster and purification silencer two-part, suction tude and outlet pipe arranged parallel are in purifying silencing, vent is arranged on the tube wall, and outer surface of tube wall is wrapped in one deck acf layer, and fibrolaminar outer surface circle is speeded up one deck silk screen layer, suction tude is connected automobile exhaust by deduster, atmosphere is connected in the outlet pipe rear end, and this device has certain effect to purifying tail vapour, and the deficiency of existence is that this device filter fiber layer and silencer integral body are one, filter layer can not be regularly cleaned and changed, so working life is very short.

Task of the present utility model is: overcome the deficiencies in the prior art, design a kind of simple in structurely, it is effective purify to eliminate the noise, and the purifying chamber can make things convenient for cleaned and changed purifying muffler.

Task of the present utility model realizes as follows: purifying muffler has a double Shell, sound-absorbing material is housed between the double Shell, the entrance point of housing is connected with suction tude, outlet end is connected with the purification cavity, purification cassette is contained in and purifies the outlet that covers on double Shell in the cavity shell, in the outlet that purifies the chamber porous outlet pipe is housed, and the double Shell inner chamber is divided into three expansion chambers by dividing plate with it, adjacent two chambeies are connected by perforated pipe, and gentle soundboard is housed in the expansion chamber of outlet end.

The utility model since be provided with three expansion chambers and one purify the chamber and all around device sound-absorbing material is arranged, the level Four acoustically effective is good like this; Because the purification cassette of cleaning of off-gas is easy to dismounting, therefore cleaned and changed very convenient, make the advantage that the utlity model has long service life.

Fig. 1 is the utility model front section view;

Fig. 2 is second kind of mode of execution sectional view of the utility model;

Fig. 3 is the third mode of execution sectional view of the utility model;

Fig. 4 is the purification cassette front view.

A best side of implementing of the present utility model, as figure, the double Shell of purifying muffler is made by metallic material, the shape of housing 1 can be elongated cylindrical, square, rectangular etc., present embodiment is an elongated cylindrical, sound-absorbing material 6 is housed between the double Shell, the entrance point of housing is connected with suction tude 11, outlet end is connected with the purification cavity, purification cassette 9 is contained in and purifies the outlet that covers on double Shell in the cavity shell, purifying cavity can be by being threaded, and bayonet socket connects or card edge type links to each other with double Shell, and present embodiment adopts and is threaded.Porous outlet pipe 10 is equipped with in the outlet that purifies the chamber, and the housing inner chamber is divided into three

expansion chambers

2,3,4 by dividing plate with it, and adjacent two chambeies are connected by perforated pipe 7, and gentle soundboard 8 is housed in having the expansion chamber of outlet end.

The structure of purification cassette as shown in Figure 4, its sidewall is made by sheetmetal 12, surface, top and bottom is a wire netting 13, box is interior to be divided into several metal grate by sheetmetal 14 with it, and purification filtering material 15 is housed in the grid.

Second kind of mode of execution of the present utility model as shown in Figure 2, purifies cavity and is connected with double Shell by the mode of inserting.

The third mode of execution of the present utility model, as shown in Figure 3, the purification cavity is connected with the bivalve body by the mode of bayonet socket.

Claims

1, a kind of purifying muffler, it has a housing, muffler material is housed in it, it is characterized in that: housing is a double Shell, sound-absorbing material is housed between the double Shell, the entrance point of housing is connected with suction tude, be connected with the purification cavity at outlet end, purification cassette is contained in and purifies the outlet that covers on double Shell in the cavity shell, the porous outlet pipe is equipped with in the outlet that purifies the chamber, the housing inner chamber is divided into three expansion chambers by dividing plate with it, and adjacent two chambeies are connected by perforated pipe, and gentle soundboard is housed in having the expansion chamber of outlet end.

2, silencing apparatus as claimed in claim 1 is characterized in that: purify cavity and be connected with double Shell by the mode of inserting.

3, silencing apparatus as claimed in claim 1 is characterized in that: purify cavity and be connected with double Shell by bayonet socket.

4, silencing apparatus as claimed in claim 1 is characterized in that: purify cavity and be connected with double Shell by screw thread.

5, silencing apparatus as claimed in claim 1 is characterized in that: said purification cassette sidewall is made by sheetmetal, and upper and lower surface is a wire netting, by sheetmetal it is divided into several metal grate in the box, and purification filtering material is housed in the grid.