CN201090281Y

CN201090281Y - Demountable exhausting silencer

Info

Publication number: CN201090281Y
Application number: CNU2007201243311U
Authority: CN
Inventors: 兰华
Original assignee: Chongqing Jianshe Motorcycle Co Ltd
Current assignee: Chongqing Jianshe Motorcycle Co Ltd
Priority date: 2007-05-25
Filing date: 2007-05-25
Publication date: 2008-07-23
Anticipated expiration: 2017-05-25

Abstract

Disclosed is a detachable exhaust muffler. A ladder-shaped connecting tube with ladder-shaped holes is welded at the front end of the muffler; the flare end of the connecting tube 4 is nested on an exhaust tube 1 and is clasped and fixed through a clamp 2; a seal ring 3 is arranged between the connecting tube 4 and the exhaust tube 1 by the nested segment; a tail sleeve 11 is welded at the tail end of an outer cover 5 of the muffler; a tail cover 12 matched with the tail sleeve 11 is nested on the tail sleeve 11; a tail tube 13 passes through a clapboard 8 and is communicated with a circular hole at the bottom part of the tail cover 12; a spring 14 is pressed on the tail tube 13. The exhaust tube is actively connected with the muffle and the tail part of the muffle can be detached, which simplifies the frock clamper and reduces the production cost and can clean the deposited carbon and replace parts; the utility model which is favorable in maintenance and economical in charge saves resources.

Description

Detachable exhaust silencer

Technical field

The utility model relates to exhaust system for motorcycle and motorcycle, relates in particular to a kind of exhaust muffler for motorcycle.

Background technique

Common motorcycle engine exhaust silencer is made up of outlet pipe and silencing apparatus two-part, and non-dismountable is enclosed, i.e. silencing apparatus and outlet pipe welding, and the outer cover of silencing apparatus, dividing plate, hush pipe etc. all weld together, and form an integral body.Silencing apparatus inside is divided into several chambeies by dividing plate, and each chamber connects together with hush pipe, when the high-temp waste gas of motor with at a high speed when outlet pipe enters silencing apparatus, because the sectional area of silencing pot increases gradually, air-flow is expanded, and flow velocity reduces, and powerful microseismic noise is decayed, when air-flow continues to flow through each expansion chamber, because the stopping of dividing plate, air-flow can only throttling, expansion, so repeatedly sudden change, the big high attenuation of acoustic energy quilt, thus play the effect that reduces exhaust sound.Because exhaust silencer generally is spatial structure, irregular, so welding fixture, cubing are all very complicated, and because exhaust silencer need carry out surface treatment, complicated structure also causes surface-treated frock clamping complexity, therefore, such exhaust silencer is made difficulty, cost height.Silencing apparatus is long-term use after, some carbon distributions can appear, exhaust resistance is increased, engine power descends, enclosed silencing apparatus can't decarbonizing, in case and the silencing apparatus part just gone bad and must carry out integral replacing, cause great waste.

The model utility content

Problem to be solved in the utility model provides a kind of outlet pipe and silencing apparatus is to flexibly connect, and can take out the detachable exhaust silencer that inner body cleans and changes from silencing apparatus.

For addressing the above problem, the utility model provides a kind of detachable exhaust silencer, comprise outlet pipe and silencing apparatus, the silencing apparatus front end is welded with the stepped shaft connecting tube of band shoulder hole, described connecting tube flared end is socketed on the outlet pipe, hold tightly fixingly by clip, the socket section is provided with seal ring between connecting tube and outlet pipe; The muffler outer hood tail end is welded with the tail cover, and tail puts and is with the tail-hood that matches with it, and tail pipe passes dividing plate and communicates with the circular hole of tail-hood bottom, is pressed with spring on the described tail pipe.

Adopt the utility model, have following advantage:

1, since with the connecting tube of silencing apparatus welding and outlet pipe socket after by clip connected, mounting or dismounting easily, the socket section is provided with seal ring between connecting tube and outlet pipe, make the connection place sealing reliable, thereby outlet pipe and silencing apparatus can be processed, surface treatment respectively, and then assembling, this has just solved welding, surface treatment frock clamping complicated problems, makes simply relatively, has reduced cost of production.

2, dividing plate, hush pipe etc. all can take out in silencing apparatus and clean, and have solved the problem that exhaust silencer descends with the reduction of back noise elimination effect, engine power for a long time.If certain damage of components of exhaust silencer only needs to change the component that damage and gets final product, expense economy economizes on resources.

Description of drawings

Fig. 1 is that master of the present utility model looks schematic representation;

Fig. 2 be among Fig. 1 the connecting tube place local amplification plan view;

Fig. 3 is the right elevation of tail-hood among Fig. 1.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

As shown in Figure 1, a kind of detachable exhaust silencer, comprise outlet pipe 1 and silencing apparatus, the silencing apparatus front end is welded with the stepped shaft connecting tube 4 of uniform wall thickness, and described connecting tube 4 flared end are socketed on the outlet pipe 1, and the step in connecting tube 4 inner step holes can play spacing effect when assembly platoon tracheae 1, hold tightly fixing by clip 2, the socket section is provided with the seal ring 3 of being worked out by wire and asbestos yarn between connecting tube 4 and outlet pipe 1, make the connection place sealing reliable, prevents gas leakage.

Silencing apparatus is by muffler outer hood 5, glass fibre 6, dividing plate 7,8,

hush pipe

9,15, and tail cover 11, tail-hood 12, tail pipe 13, spring 14 are formed.It is conical that muffler outer hood 5 front ends are, weld together with connecting tube 4, the rear end is cylindrical, with 11 welding of tail cover, tail overlaps has screw thread to connect with tapped tail-hood 12 on 11 external cylindrical surfaces, dividing plate 7,8,

hush pipe

9,15 and tail pipe 13 are welded into an integral body, and tail pipe 13 passes dividing plate 8, stretch out from the circular hole of tail-hood 12 bottoms, the outlet bending is hurted sb.'s feelings to prevent the exhaust ejection downwards, and tail pipe 13 is a Spielpassung with circular hole.Be pressed with spring 14 on the described tail pipe 13, spring 14 two ends and dividing plate 8 and tail-hood 12 are inconsistent, by the effect of spring 18, the periphery of dividing plate 7,8 and glass fibre 6 are pressed on the inwall of muffler outer hood 5 tightly, realize fixing.Guard shield 10 is made by heat resistant plastice, tightly is enclosed within the cylindrical portion of silencing apparatus tail end, is scalded by silencing apparatus in the time of can preventing that driver and passenger from getting on or off the bus.

Referring to Fig. 2, clip 2 is general parts, is the opening annulus that there is chuck at two ends, and two chucks are respectively arranged with through hole and tapped hole, hold tightly connecting tube 4 fixing by screw 17.Connecting tube 4 flared end offer 4 shaft orientation opening grooves 16, are used to improve the elastic force of this end pipe portion, and it is bound round on outlet pipe 1 under the power of holding tightly of clip 2 tightly, connect reliably, and the oral area flange of connecting tube 4 is convenient to assembling.

Referring to Fig. 3, tail-hood 12 cylindricals are provided with 4 fins 18, and are anti-skidding when being used to assemble, and also have decorating action, and certainly, fin 18 also can be designed to 6,8 even more.

When engine operation, waste gas enters outlet pipe 1 from the relief opening of cylinder head, enters expansion chamber A then, enters expansion chamber C, expansion chamber B successively by

hush pipe

15,9, discharges by tail pipe 13 at last.When exhaust silencer used certain hour to need maintenance clean, the tail-hood 12 of outwarding winding took out baffle assembly, with regard to carbon distribution capable of washing, if need renewal part, only need unclamp clip 2, and outlet pipe 1 is separated with silencing apparatus, can carry out part exchanging easily.

Above-described only is preferred implementation of the present utility model, for a person skilled in the art, under the prerequisite that does not break away from the utility model principle, also can make some modification or improvement, and these belong to protection domain of the present utility model equally.

Claims

1. detachable exhaust silencer, comprise outlet pipe (1) and silencing apparatus, it is characterized in that: the silencing apparatus front end is welded with the stepped shaft connecting tube (4) of band shoulder hole, described connecting tube (4) flared end is socketed on the outlet pipe (1), hold tightly fixingly by clip (2), the socket section is provided with seal ring (3) between connecting tube (4) and outlet pipe (1); Muffler outer hood (5) tail end is welded with tail cover (11), is with the tail-hood (12) that matches with it on the tail cover (11), and tail pipe (13) passes dividing plate (8) and communicates with the circular hole of tail-hood (12) bottom, is pressed with spring (14) on the described tail pipe (13).

2. detachable exhaust silencer according to claim 1 is characterized in that: described clip (2) is the opening annulus that there is chuck at two ends, and two chucks are respectively arranged with through hole and tapped hole, holds tightly by screw (17).

3. detachable exhaust silencer according to claim 1 is characterized in that: the flared end of described connecting tube (4) offers shaft orientation opening groove (16).

4. detachable exhaust silencer according to claim 1 is characterized in that: described tail-hood (12) by the internal thread wall with have externally threaded tail cover (11) and connect, tail-hood (12) cylindrical is provided with fin (18).

5. detachable exhaust silencer according to claim 1 is characterized in that: described seal ring (3) is woven with asbestos yarn and wire.

6. detachable exhaust silencer according to claim 1 is characterized in that: described muffler outer hood (5) is made of the conical section of front portion and the cylindrical section of afterbody, and described cylindrical section tightens the guard shield (10) that is with heat resistant plastice and makes.

7. according to each described detachable exhaust silencer in the claim 1 to 6, it is characterized in that: tail pipe (13) stretches out from the circular hole of tail-hood (12) bottom, and the outlet bending is downward, and tail pipe (13) is a Spielpassung with this hole.