CN208330512U

CN208330512U - A kind of automobile exhaust pipe structure

Info

Publication number: CN208330512U
Application number: CN201820936567.3U
Authority: CN
Inventors: 高强; 陈传杰
Original assignee: Gns Auto Parts Co Ltd
Current assignee: Gns Auto Parts Co Ltd
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2019-01-04
Anticipated expiration: 2028-06-15

Abstract

The utility model provides exhaust pipe, belong to auto-parts technical field, comprising: noise reduction ring, it includes inner ring, outer ring, connect several connection sheets of inner ring and outer ring, outer ring is stretched out at inner ring both ends, several described connection sheets are circumferentially uniformly distributed and connection sheet both ends are flushed with outer ring both ends, two connection sheets of arbitrary neighborhood and inner ring, outer ring is enclosed silencing cavity, the inner ring, the slot with the one-to-one strip of silencing cavity is respectively equipped on outer ring, outer sleeve, it is sheathed on outside outer ring, outer sleeve is fitted closely with outer ring, outer sleeve both ends are flushed with outer ring both ends；Two end caps；Exhaust pipe comprising connecting flange, hush pipe, the connecting flange are detachably connected with inner ring right end, hush pipe insertion inner ring is simultaneously stretched out, hush pipe is fitted closely with inner ring, and the hush pipe is equipped with the bloop group of arrangement corresponding with inner ring slot, and inner ring slot covers corresponding bloop group.This exhaust pipe can guarantee noise reduction and heat dissipation effect.

Description

A kind of automobile exhaust pipe structure

Technical field

The utility model belongs to auto-parts technical field, is related to a kind of automobile exhaust pipe structure.

Background technique

Automobile exhaust pipe is the component that automobile is used for emission, generally has the function of noise reduction, damping and purification, such as One application No. is 201621382514.9 Chinese patents, it discloses the good muffler of erasure effect, air inlet pipe and disappear One end of sound device shell, the air inlet pipe runs through muffler shell and extends to the inside of muffler shell, and the air inlet pipe is prolonged It extends to one end inside muffler shell and is communicated with diversion pipe, the both ends of the diversion pipe are communicated with the first silencing means, institute Stating the first silencing means includes the first anechoic chamber.

Existing automobile exhaust pipe can not generally be dismantled, and the dust inside exhaust pipe can not be removed, and cause to make for a long time With that can reduce noise reduction and heat dissipation effect, there are certain rooms for improvement, it is therefore desirable to design a kind of guarantee noise reduction and heat dissipation effect Automobile exhaust pipe structure.

Summary of the invention

The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of guarantee noise reduction and heat dissipation The automobile exhaust pipe structure of effect.

The purpose of this utility model can be realized by the following technical scheme: a kind of automobile exhaust pipe structure, comprising:

Noise reduction ring comprising outer ring is stretched out at inner ring, outer ring, several connection sheets for connecting inner ring and outer ring, inner ring both ends, Several described connection sheets are circumferentially uniformly distributed and connection sheet both ends are flushed with outer ring both ends, two connection sheets of arbitrary neighborhood with it is interior Ring, outer ring are enclosed silencing cavity, and the slot with the one-to-one strip of silencing cavity is respectively equipped in the inner ring, outer ring,

Outer sleeve is sheathed on outside outer ring, and outer sleeve is fitted closely with outer ring, and outer sleeve both ends are flushed with outer ring both ends；

End cap, quantity are two and are detachably connected with outer sleeve both ends that end cap passes through ring closure silencing cavity；

Exhaust pipe comprising the connecting flange with connecting hole, the hush pipe connected with connecting flange, the connecting flange It is detachably connected with inner ring right end, hush pipe insertion inner ring is simultaneously stretched out, and hush pipe is fitted closely with inner ring, and the hush pipe is equipped with The bloop group of arrangement corresponding with inner ring slot, inner ring slot cover corresponding bloop group.

The connecting flange is equipped with the mounting groove of annular, holding screw as a further improvement of the utility model, hangs down Straight mounting groove sidewall direction is equipped with perforative tightening hole, and tightening hole is equipped with screw thread and is spirally connected with holding screw, the insertion of inner ring right end Mounting groove is simultaneously compressed by holding screw.

The connecting flange is equipped with side plane as a further improvement of the utility model, and the tightening hole is along side plane It is vertically arranged and offers countersunk head slot.

Symmetrical locating convex block there are two being set on the mounting groove as a further improvement of the utility model, it is described interior Ring right end is equipped with two locating slots corresponding with locating convex block.

Be additionally provided with lasso between the outer sleeve and outer ring as a further improvement of the utility model, lasso both ends with Outer ring both ends flush, and the lasso is fabricated from a flexible material and can be rolled into tubular by planar.

Based on the above-mentioned technical proposal, the utility model embodiment at least can produce following technical effect:

1, the structure cooperated by noise reduction ring and hush pipe, outer sleeve, forms closed silencing cavity, makes noise in silencing cavity Interior generation reflection, interference, so that noise is reduced, and this automobile exhaust pipe structure can be dismantled completely, the slot of outer ring and inner ring The more convenient deashing of pore structure, to guarantee noise reduction and heat dissipation effect.

2, inner ring is compressed by holding screw, so that exhaust pipe and noise reduction ring are connected, this is simple and reasonable and dismantles It is convenient.

3, by setting locating convex block and corresponding locating slot, thus the location and installation of easy to exhaust pipe and noise reduction ring.

Detailed description of the invention

Fig. 1 is the explosive view of one preferred embodiment of the utility model.

Fig. 2 is the cross-sectional view of one preferred embodiment of the utility model.

Fig. 3 is the structural schematic diagram of noise reduction ring.

Fig. 4 is the structural schematic diagram of exhaust pipe.

In figure, 1, noise reduction ring；11, inner ring；111, locating slot；12, outer ring；13, connection sheet；14, silencing cavity；2, housing Cylinder；3, end cap；4, exhaust pipe；41, connecting flange；411, connecting hole；412, mounting groove；413, tightening hole；414, side plane； 415, locating convex block；42, hush pipe；421, bloop group；5, lasso.

Specific embodiment

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

As shown in Figures 1 to 4, this automobile exhaust pipe structure, comprising:

Noise reduction ring 1 comprising inner ring 11, outer ring 12, several connection sheets 13 for connecting inner ring and outer ring, 11 both ends of inner ring Outer ring 12 is stretched out, several described connection sheets 13 are circumferentially uniformly distributed and 13 both ends of connection sheet are flushed with 12 both ends of outer ring, arbitrarily Two neighboring connection sheet 13 is enclosed silencing cavity 14 with inner ring 11, outer ring 12, be respectively equipped in the inner ring 11, outer ring 12 with The one-to-one strip slot of silencing cavity 14,

Outer sleeve 2 is sheathed on outside outer ring 12, and outer sleeve 2 is fitted closely with outer ring 12,2 both ends of outer sleeve and outer ring 12 Both ends flush；

End cap 3, quantity are two and are detachably connected with 2 both ends of outer sleeve that end cap 3 passes through inner ring 11 and closes silencing cavity 14；

Exhaust pipe 4 comprising the connecting flange 41 with connecting hole 411, the hush pipe 42 connected with connecting flange 41, institute It states connecting flange 41 to be detachably connected with 12 right end of inner ring, hush pipe 42 is embedded in inner ring 11 and stretches out, hush pipe 42 and inner ring 11 It fits closely, the hush pipe 42 is equipped with the bloop group 421 of arrangement corresponding with 11 slot of inner ring, and the covering of 11 slot of inner ring corresponds to Bloop group 421.

Vehicle exhaust enters from 4 right end of exhaust pipe, then enters silencing cavity 14 by the bloop group 421 on hush pipe 42 Interior, reflection, interference occur in closed silencing cavity 14 for noise, to reduce noise, tail gas is finally arranged from 4 left end of exhaust pipe Out.

In the present embodiment, inner ring 11, outer ring 12 slotted hole structure keep heat transfer more uniform, heat dissipation effect is more preferable；Separately Outside, preferably the quantity of connection sheet 13 is 4, then the quantity of corresponding silencing cavity 14 and bloop group 421 is 4, makes noise More reflections, interference occur in a limited space, further increase erasure effect, while can also facilitate installation personnel that will disappear Sound hole group 421 is aligned with silencing cavity 14.

After the structure long-time use of this automobile exhaust pipe, accumulation has a large amount of dust in silencing cavity 14, thus the present embodiment End cap 3 and outer sleeve 2 are set as being detachably connected, specific structure, which can be, is threadedly coupled (not shown) or interference company It connects, connecting flange 41 same as 12 right end of inner ring is to be detachably connected, thus by noise reduction ring 1, outer sleeve 2, end cap 3, exhaust pipe 4 Dust is cleared up after removing one by one, the cyclic structure of noise reduction ring 1, slotted hole structure keep its cleaning dust more convenient, hush pipe 42 421 structure of bloop group is equally convenient to clean dust, exhaust pipe structure is re-assemblied again after clearing up dust, to guarantee its noise reduction And heat dissipation effect.

The connecting flange 41 is equipped with the mounting groove 412 of annular, holding screw (drawing is not shown), right angle setting slot 412 sidewall directions are equipped with perforative tightening hole 413, and tightening hole 413 is equipped with screw thread and is spirally connected with holding screw, and 11 right end of inner ring is embedding Enter mounting groove 412 and is compressed by holding screw.

Inner ring 11 is compressed by holding screw, so that exhaust pipe 4 and noise reduction ring 1 are connected, this is simple and reasonable and tears open It unloads conveniently, in the present embodiment, the quantity in holding screw and tightening hole 413 is preferably two and is symmetrical arranged, to make exhaust pipe 4 It is relatively reliable with the fixation of noise reduction ring 1.

The connecting flange 41 is equipped with side plane 414, and the tightening hole 413 is vertically arranged along side plane and offers countersunk head Slot.

Facilitate processing tightening hole 413 by the way that side plane 414 is arranged, it is by opening up countersunk head slot, the nut of holding screw is embedding Enter countersunk head slot, structure is cleaner and tidier, and appearance is more preferable.

Symmetrical locating convex block 415 there are two setting on the mounting groove 412,11 right end of inner ring is equipped with and locating convex block 415 corresponding two locating slots 111.

By setting locating convex block 415 and corresponding locating slot 111, so that the positioning of easy to exhaust pipe 4 and noise reduction ring 1 is pacified Dress, it is preferred that the position of locating convex block 415 is vertical with tightening hole 413, consequently facilitating installation personnel identifies installation site.

It is additionally provided with lasso 5 between the 12 of the outer sleeve 2 and outer ring, 5 both ends of lasso are flushed with 12 both ends of outer ring, the lasso 5 are fabricated from a flexible material and can be rolled into tubular by planar.

In use, lasso 5 all covers outer sleeve 2, dust is all accumulated on lasso 5, and outer sleeve 2 is not necessarily to cleaning, And the lasso 5 of tubular can spread out into again it is planar after clear up dust again, cleaning efficiency is higher, and when installation can be rolled into cylinder again Shape fills in outer sleeve 2.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims

1. a kind of automobile exhaust pipe structure characterized by comprising

Noise reduction ring comprising inner ring, outer ring, several connection sheets for connecting inner ring and outer ring, outer ring is stretched out at inner ring both ends, described Several connection sheets are circumferentially uniformly distributed and connection sheet both ends are flushed with outer ring both ends, two connection sheets of arbitrary neighborhood and inner ring, Outer ring is enclosed silencing cavity, and the slot with the one-to-one strip of silencing cavity is respectively equipped in the inner ring, outer ring,

Exhaust pipe comprising connecting flange with connecting hole, the hush pipe being connected with connecting flange, the connecting flange with it is interior Ring right end is detachably connected, hush pipe insertion inner ring simultaneously stretch out, hush pipe is fitted closely with inner ring, the hush pipe equipped with it is interior The bloop group of the corresponding arrangement of groove hole, inner ring slot cover corresponding bloop group.

2. a kind of automobile exhaust pipe structure according to claim 1, it is characterised in that: the connecting flange is equipped with annular Mounting groove, holding screw, right angle setting groove sidewall direction be equipped with perforative tightening hole, tightening hole be equipped with screw thread and and clamp screw Oncomelania connects, and inner ring right end insertion mounting groove is simultaneously compressed by holding screw.

3. a kind of automobile exhaust pipe structure according to claim 2, it is characterised in that: the connecting flange is flat equipped with side Face, the tightening hole are vertically arranged along side plane and offer countersunk head slot.

4. a kind of automobile exhaust pipe structure according to claim 3, it is characterised in that: right there are two being set on the mounting groove The locating convex block of title, the inner ring right end are equipped with two locating slots corresponding with locating convex block.

5. a kind of automobile exhaust pipe structure according to claim 1, it is characterised in that: between the outer sleeve and outer ring also Equipped with lasso, lasso both ends are flushed with outer ring both ends, and the lasso is fabricated from a flexible material and can be rolled into tubular by planar.