CN208396794U - A kind of exhaust pipe of engine - Google Patents

Abstract

The utility model discloses a kind of exhaust pipes of engine, the exhaust pipe includes metal inner pipe, the fiberglass cloth being sheathed on outside the metal inner pipe, the metal elastic reed pipe being sheathed on outside the fiberglass cloth, the metal outer pipe being sheathed on outside the metal elastic reed pipe, and it is fixedly arranged on the connecting flange of the metal inner pipe and metal outer pipe first end, the metal inner pipe and metal outer pipe first end are fixedly welded with second face of connecting flange respectively, the metal outer pipe second end is welded to connect to winding on the inside of metal inner pipe second end and with the metal inner pipe second end inner wall, the connecting flange periphery is equipped at least three fixation holes, the through-hole being connected to the metal inner pipe is equipped in the middle part of the connecting flange, first face of connecting flange is equipped with the annular groove to the connecting flange sunken inside, the annular groove is set around through-hole periphery, pad is equipped with ring packing in the annular groove Washer, the ring packing washer protrude from the first face of connecting flange surface when pad is set in the annular groove.

Description

A kind of exhaust pipe of engine

Technical field

The utility model relates to the exhaust pipes of engine.

Background technique

The existing exhaust pipe of engine is fixedly connected with muffler by welding mostly, and pipe replacement is being exhausted When, it is difficult to remove exhaust pipe, causes muffler and exhaust pipe can only be replaced together, cause maintenance cost higher.

Utility model content

The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of engine Exhaust pipe.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of exhaust pipe of engine is constructed, the row Tracheae includes metal inner pipe, the fiberglass cloth being sheathed on outside the metal inner pipe, the gold being sheathed on outside the fiberglass cloth Belong to bourdon tube, the metal outer pipe being sheathed on outside the metal elastic reed pipe and is fixedly arranged on the metal inner pipe and metal outer pipe first end Connecting flange, the metal inner pipe and metal outer pipe first end are fixedly welded with second face of connecting flange respectively, outside the metal Pipe second end is welded to connect to winding on the inside of metal inner pipe second end and with the metal inner pipe second end inner wall, connecting flange week Edge is equipped at least three fixation holes, is equipped with the through-hole being connected to the metal inner pipe, the connecting flange first in the middle part of the connecting flange Face is equipped with the annular groove to the connecting flange sunken inside, which is set around through-hole periphery, and pad is equipped with ring in the annular groove Shape seal washer, the ring packing washer protrude from the first face of connecting flange surface when pad is set in the annular groove.

In the exhaust pipe of engine described in the utility model, which further includes the fixation being sheathed on outside the exhaust pipe Set, which is installed with the connecting rod being fixedly connected with the fixing sleeve, which, which is installed with, is used for and automobile The mounting base that chassis is fixedly connected, the mounting base are equipped with mounting hole, which, which is equipped with, runs through the fixing sleeve First tapped through hole of the first side wall, the fixing sleeve second sidewall are logical equipped with the second screw thread through the fixing sleeve second sidewall Hole, the fixing sleeve bottom wall are equipped with the third tapped through hole through the fixing sleeve bottom wall, and being equipped in first tapped through hole can be with The first bolt that first tapped through hole is spirally connected and can abut with first outside wall surface of exhaust pipe is equipped in second tapped through hole The second bolt that can be spirally connected and can be abutted with second outside wall surface of exhaust pipe with second tapped through hole, in the third tapped through hole Equipped with the third bolt that can be spirally connected and can be abutted with the exhaust pipe wall surface with the third tapped through hole.

In the exhaust pipe of engine described in the utility model, which is arranged with the first foot pad, this first The cross-sectional diameter of foot pad is greater than the cross-sectional diameter of first bolt, which is equipped with and can be spirally connected with first bolt The first threaded hole, which is arranged with the second foot pad, and the cross-sectional diameter of second foot pad is greater than second spiral shell The cross-sectional diameter of bolt, second foot pad are equipped with the second threaded hole that can be spirally connected with second bolt, the third bolt bottom end It is arranged with third foot pad, the cross-sectional diameter of the third foot pad is greater than the cross-sectional diameter of the third bolt, on the third foot pad Equipped with the third threaded hole that can be spirally connected with the third bolt.

The exhaust pipe of engine for implementing the utility model, has the advantages that the engine using the utility model When exhaust pipe, by the way that metal inner pipe, metal outer pipe is arranged, and glass fabric is folded between metal inner pipe and metal outer pipe Layer, can play heat-insulated yesterday, can reduce scald.By the sandwiched metal elastic reed pipe between metal inner pipe and metal outer pipe, can rise To the effect for increasing exhaust pipe integral strength.By the way that connecting flange is arranged in exhaust pipe first end, user can pass through connecting flange Flanged joint is carried out with the ring flange at muffler vent position, dismounts and replaces convenient for the later period.By in ring flange first Face setting annular groove and pad sets ring packing washer in a ring groove, by the ring flange of connecting flange and muffler exhaust outlet into When row is fixedly connected, ring packing washer is located between connecting flange and ring flange, can be played sealing function, be prevented gas leakage.

Detailed description of the invention

Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:

Fig. 1 is the cross-sectional structure schematic diagram of the utility model exhaust pipe of engine；

Fig. 2 is the structural schematic diagram of fixing sleeve in the utility model exhaust pipe of engine.

Specific embodiment

It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer Type embodiment is described in further detail.

As shown in Figure 1, the exhaust pipe 1 includes in metal in the exhaust pipe of engine first embodiment of the utility model Pipe 2, the fiberglass cloth 3 being sheathed on outside the metal inner pipe 2, the metal elastic reed pipe 4 being sheathed on outside the fiberglass cloth 3, The metal outer pipe 5 that is sheathed on outside the metal elastic reed pipe 4 and the connection for being fixedly arranged on 5 first end of the metal inner pipe 2 and metal outer pipe Flange 6, the metal inner pipe 2 and 5 first end of metal outer pipe are fixedly welded with 6 second face of connecting flange respectively, the metal outer pipe 5 Second end is welded to connect to winding on the inside of 2 second end of metal inner pipe and with the 2 second end inner wall of metal inner pipe, the connecting flange 6 Periphery is equipped at least three fixation holes 7, is equipped with the through-hole 8 being connected to the metal inner pipe 2, the connection method in the middle part of the connecting flange 6 Blue 6 first faces are equipped with the annular groove 9 to 6 sunken inside of connecting flange, which is set around 8 periphery of through-hole, the annular groove Pad is equipped with ring packing washer 10 in 9, which protrudes from the connecting flange when pad is set in the annular groove 9 6 first faces surface.

Using the utility model the exhaust pipe of engine 1 when, by the way that metal inner pipe 2, metal outer pipe 5 is arranged, and in metal It is folded with fiberglass cloth 3 between inner tube 2 and metal outer pipe 5, heat-insulated yesterday can be played, scald can be reduced.By in metal Sandwiched metal elastic reed pipe 4 between inner tube 2 and metal outer pipe 5 can play the role of increasing by 1 integral strength of exhaust pipe.By arranging Connecting flange 6 is arranged in 1 first end of tracheae, and user can be carried out by the ring flange at connecting flange 6 and muffler vent position Flanged joint is dismounted and is replaced convenient for the later period.Ring is set by the way that annular groove 9 is arranged and pads in annular groove 9 in the first face of ring flange Shape seal washer 10, when the ring flange of connecting flange 6 and muffler exhaust outlet is fixedly connected, ring packing washer 10 It is located between connecting flange 6 and ring flange, sealing function can be played, prevent gas leakage.

As shown in Fig. 2, the exhaust pipe 1 further includes the fixing sleeve 11 being sheathed on outside the exhaust pipe 1,11 roof of fixing sleeve is solid Equipped with the connecting rod 12 being fixedly connected with the fixing sleeve 11, which is installed with for being fixedly connected with automobile chassis Mounting base 13, which is equipped with mounting hole 14, which is equipped with through the fixing sleeve 11 the First tapped through hole 15 of one side wall, 11 second sidewall of fixing sleeve are equipped with the second spiral shell through 11 second sidewall of fixing sleeve Line through-hole 16,11 bottom wall of fixing sleeve are equipped with the third tapped through hole 17 through 11 bottom wall of fixing sleeve, and first screw thread is logical The first bolt 18 that can be spirally connected and can be abutted with 1 first outside wall surface of exhaust pipe with first tapped through hole 15 is equipped in hole 15, Being equipped in second tapped through hole 16 can be spirally connected with second tapped through hole 16 and can abut with 1 second outside wall surface of exhaust pipe Second bolt 19, being equipped in the third tapped through hole 17 can be spirally connected and can be with 1 bottom wall of exhaust pipe with the third tapped through hole 17 The third bolt 20 that face abuts.Mounting base 13 can be fixed on automobile chassis by user by mounting hole 14, then by exhaust pipe 1 It is inserted into the fixed hole of fixing sleeve 11, then rotates the first bolt 18, the second bolt 19 and third bolt 20 respectively, until Exhaust pipe 1 is fixedly arranged in fixing sleeve 11.

Further, it is deformed to prevent the first bolt 18, the second bolt 19 and 20 end of third bolt from pushing up exhaust pipe 1, First bolt, 18 bottom end is arranged with the first foot pad 21, and the cross-sectional diameter of first foot pad 21 is greater than the cross of first bolt 18 Diameter of section, first foot pad 21 are equipped with the first threaded hole that can be spirally connected with first bolt 18,19 bottom end of the second bolt It is arranged with the second foot pad 22, the cross-sectional diameter of second foot pad 22 is greater than the cross-sectional diameter of second bolt 19, this second Foot pad 22 is equipped with the second threaded hole that can be spirally connected with second bolt 19, which is arranged with third foot pad 23, the cross-sectional diameter of the third foot pad 23 is greater than the cross-sectional diameter of the third bolt 20, which is equipped with can The third threaded hole being spirally connected with the third bolt 20.

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in Other related technical areas are also included in the patent protection scope of the utility model.

Claims (3)

1. a kind of exhaust pipe of engine, which is characterized in that the exhaust pipe includes metal inner pipe, is sheathed on outside the metal inner pipe Fiberglass cloth, be sheathed on outside the fiberglass cloth metal elastic reed pipe, be sheathed on outside the metal elastic reed pipe Metal outer pipe and the connecting flange for being fixedly arranged on the metal inner pipe and metal outer pipe first end, the metal inner pipe and metal Outer tube first end is fixedly welded with second face of connecting flange respectively, and the metal outer pipe second end is to metal inner pipe second end Inside winding is simultaneously welded to connect with the metal inner pipe second end inner wall, and it is fixed that the connecting flange periphery is equipped at least three Hole, the connecting flange middle part are equipped with the through-hole being connected to the metal inner pipe, and first face of connecting flange is equipped with to described The annular groove of connecting flange sunken inside, the annular groove are set around the through-hole periphery, and it is close to be equipped with annular for pad in the annular groove Seal washer, the ring packing washer protrude from first face of connecting flange surface when pad is set in the annular groove.

2. the exhaust pipe of engine according to claim 1, which is characterized in that the exhaust pipe further includes being sheathed on the row Extratracheal fixing sleeve, the fixing sleeve roof are installed with the connecting rod being fixedly connected with the fixing sleeve, the connecting rod top End is installed with the mounting base for being fixedly connected with automobile chassis, and the mounting base is equipped with mounting hole, the fixing sleeve first Side wall is equipped with the first tapped through hole through the fixing sleeve the first side wall, and the fixing sleeve second sidewall, which is equipped with, runs through institute The second tapped through hole of fixing sleeve second sidewall is stated, the fixing sleeve bottom wall is equipped with the third spiral shell through the fixing sleeve bottom wall Line through-hole, being equipped in first tapped through hole can be spirally connected and can be with first outer wall of exhaust pipe with first tapped through hole The first bolt that face abuts, being equipped in second tapped through hole can be spirally connected and can be with the exhaust with second tapped through hole The second bolt that the second outside wall surface of pipe abuts, being equipped in the third tapped through hole can be spirally connected and can with the third tapped through hole The third bolt abutted with the exhaust pipe wall surface.

3. the exhaust pipe of engine according to claim 2, which is characterized in that first bolt bottom end is arranged with the first foot Pad, the cross-sectional diameter of first foot pad are greater than the cross-sectional diameter of first bolt, and first foot pad is equipped with can The first threaded hole being spirally connected with first bolt, second bolt bottom end are arranged with the second foot pad, second foot pad Cross-sectional diameter is greater than the cross-sectional diameter of second bolt, and second foot pad is equipped with and can be spirally connected with second bolt The second threaded hole, third bolt bottom end is arranged with third foot pad, and the cross-sectional diameter of the third foot pad is greater than described The cross-sectional diameter of third bolt, the third foot pad are equipped with the third threaded hole that can be spirally connected with the third bolt.