CN223923128U

CN223923128U - Self-sealing connection structure suitable for quick disassembly and assembly of smoke exhaust pipe of high-power diesel engine

Info

Publication number: CN223923128U
Application number: CN202422874070.1U
Authority: CN
Inventors: 袁健银; 王存粮; 丁程程; 胡玉文; 米玉轩; 毛娟; 杨林超
Original assignee: Chongqing Tiema Industries Group Co ltd
Current assignee: Chongqing Tiema Industries Group Co ltd
Priority date: 2024-11-25
Filing date: 2024-11-25
Publication date: 2026-02-17
Anticipated expiration: 2034-11-25

Abstract

The utility model discloses a self-sealing connecting structure suitable for quick disassembly and assembly of a smoke exhaust pipe of a high-power diesel engine. One end of the exhaust pipe flange is fixedly connected with the exhaust pipe assembly, and the other end of the exhaust pipe flange is a flange connection end. One end of the silencer flange is fixedly connected with the silencer, and the other end of the silencer flange is also a flange connection end. The flange connection ends of the two flanges are fastened through V-shaped clamps, and the connection ends are conical surfaces. According to the structure, the connecting flange structure is changed into the conical surface flange, and the V-shaped clamp is used for fastening, so that the connection sealing of the pipeline is realized, the sealing of the asbestos pad is not needed, the traditional sealing asbestos pad is omitted, the problem of frequent replacement of the sealing asbestos pad is avoided, the maintenance cost of the exhaust pipeline is reduced, the quick assembly and disassembly of the exhaust pipeline are realized, and the sealing structure has good maintainability and assembly property.

Description

Self-sealing connection structure suitable for quick disassembly and assembly of smoke exhaust pipe of high-power diesel engine

Technical Field

The utility model relates to the technical field of vehicle assembly, in particular to a self-sealing connecting structure suitable for quick disassembly and assembly of a smoke exhaust pipe of a high-power diesel engine.

Background

Exhaust gas of a vehicle has characteristics such as high temperature and high pressure during the exhaust process, and thus it is required that the exhaust pipe has good sealability and high temperature resistance.

The traditional exhaust pipeline connection is sealed and firm for guaranteeing, adopts the bolt, the nut often, and ring flange and asbestos pad carry out sealing connection, but for guaranteeing pipeline leakproofness, often be equipped with a plurality of bolt holes on the ring flange to have sufficient and even pulling force to compress tightly the asbestos pad between the ring flange, the dismouting is got up more loaded down with trivial details, reduces vehicle assembly efficiency, and after the dismouting pipeline many times, easily leads to sealed asbestos pad to damage, needs to change the asbestos pad again.

Therefore, it is necessary to improve the assemblability of the exhaust pipe as much as possible while ensuring that the exhaust pipe is firmly sealed.

Disclosure of utility model

The utility model aims to provide a self-sealing connecting structure suitable for quick disassembly and assembly of a smoke exhaust pipe of a high-power diesel engine, which comprises a V-shaped clamp, an exhaust pipe flange and a silencer flange.

One end of the exhaust pipe flange is fixedly connected with the exhaust pipe assembly, and the other end of the exhaust pipe flange is a flange connection end.

One end of the silencer flange is fixedly connected with the silencer, and the other end of the silencer flange is a flange connection end.

The flange connection end of the exhaust pipe flange is fastened with the flange connection end of the silencer flange through a V-shaped clamp.

Furthermore, the flange connection ends of the exhaust pipe flange and the silencer flange are conical surfaces.

The technical effect of the utility model is undoubtedly that the utility model has the following beneficial effects:

1. The two connecting flanges are welded at the joint of the pipelines, the flange plates are fastened through the V-shaped clamp, and the connecting flange is connected with the exhaust pipeline, so that the connecting flange has the characteristics of simplicity in assembly, rapidness in assembly and disassembly and stable structure;

2. The sealing structure of the smoke exhaust pipeline is improved, the sealing asbestos pad is eliminated, the sealing asbestos pad does not need to be replaced frequently when the smoke exhaust pipeline is disassembled and assembled, and good maintainability is achieved;

3. the connecting sealing surface of the connecting flange is a conical surface, the area of the connecting surface of the connecting flange relative to the plane flange is increased, the flange conical surface is attached under the extrusion of the V-shaped clamp, the pipeline sealing is completed, and the sealing performance is good.

Drawings

FIG. 1 is a self-sealing connection structure diagram suitable for rapid disassembly and assembly of a smoke exhaust pipe of a high-power diesel engine;

FIG. 2 is a schematic diagram of an exhaust pipe flange and muffler flange assembly process;

Fig. 2 (a) is a schematic view of an exhaust pipe flange and a muffler flange, (b) is a schematic view of the connection conical surfaces of the exhaust pipe flange and the muffler flange, and (c) is a V-shaped clamp assembly view.

In the figure, the exhaust pipe assembly comprises a 1-exhaust pipe assembly, a 2-V-shaped clamp, a 3-muffler, a 4-exhaust pipe flange and a 5-muffler flange.

Detailed Description

The present utility model is further described below with reference to examples, but it should not be construed that the scope of the above subject matter of the present utility model is limited to the following examples. Various substitutions and alterations are made according to the ordinary skill and familiar means of the art without departing from the technical spirit of the utility model, and all such substitutions and alterations are intended to be included in the scope of the utility model.

Example 1:

Referring to fig. 1 and 2, a self-sealing connection structure suitable for rapid disassembly and assembly of a smoke exhaust pipe of a high-power diesel engine comprises a V-shaped clamp 2, an exhaust pipe flange 4 and a silencer flange 5.

One end of the exhaust pipe flange 4 is fixedly connected with the exhaust pipe assembly 1, and the other end is a flange connection end.

One end of the silencer flange 5 is fixedly connected with the silencer 3, and the other end of the silencer flange is a flange connection end.

The flange connection end of the exhaust pipe flange 4 and the flange connection end of the silencer flange 5 are fastened through the V-shaped clamp 2.

Example 2:

The main structure of this embodiment is the same as that of embodiment 1, and further, the flange connection ends of the exhaust pipe flange 4 and the muffler flange 5 are conical surfaces.

Example 3:

The main structure of this embodiment is the same as any one of embodiments 1 to 2, and further, the structure is mainly composed of an exhaust pipe assembly 1, a V-shaped clip 2, a muffler 3, an exhaust pipe flange 4, a muffler flange 5, and the like.

The exhaust pipe flange 4 and the silencer flange 5 are respectively integrated with the exhaust pipe assembly 1 and the silencer 3 in a welding mode, and the two flanges are tightly held by the V-shaped clamp 2, so that the connection of an exhaust pipeline is completed.

The connection surface of the exhaust pipe flange 4 and the silencer flange 5 is a conical surface, the sealing surface is large when the pipeline is connected, and the pipeline can be sealed through the V-shaped clamp 2.

The connecting structure can realize the sealing connection of the exhaust pipeline by only needing one V-shaped clamp 2, has simple structure and can realize quick assembly disassembly.

Example 4:

The main structure of this embodiment is with any one of embodiments 1~3, further, with blast pipe flange 4 and muffler flange 5 through welded mode with blast pipe assembly 1 and muffler 3 integration respectively, blast pipe flange 4 and muffler flange 5 joint face is the conical surface, and sealed face is great during the pipe connection, hugs tightly two flanges through V type clamp 2, need not to assemble sealed asbestos pad, realizes pipeline seal through the conical surface laminating of two ring flanges, accomplishes the connection of exhaust pipe.

Example 5:

The main structure of this embodiment is the same as any one of embodiments 1 to 4, and further, an assembly process of a self-sealing connection structure suitable for rapid disassembly and assembly of a smoke exhaust pipe of a high-power diesel engine is as follows:

1) The exhaust pipe flange 4 and the silencer flange 5 are respectively integrated on the exhaust pipe assembly 1 and the silencer 3 in a welding mode;

2) The exhaust pipe flange 4 and the silencer flange 5 are connected with conical surfaces in alignment contact, and are fastened through the V-shaped clamp 2, so that the connection and the sealing of an exhaust pipeline are completed.

Example 6:

The main structure of this embodiment is with any one of embodiments 1~5, further, vehicle tradition exhaust piping connection is for guaranteeing sealedly and firm, adopts the bolt always, the nut, ring flange and asbestos pad to seal and connect, but for guaranteeing the pipeline leakproofness, often is equipped with a plurality of bolt holes on the ring flange to guarantee to have sufficient and even pulling force to compress tightly the asbestos pad between the ring flange, the dismouting is got up more loaded down with trivial details, and need frequently to change sealed asbestos pad, has increased cost of maintenance.

According to the utility model, the connecting flange structure is changed into the conical surface flange, and the V-shaped clamp is used for fastening, so that the connection and the sealing of the pipeline are realized, the sealing of the asbestos pad is not needed, the traditional sealing asbestos pad is omitted, the problem of frequent replacement of the sealing asbestos pad is avoided, the maintenance cost of the exhaust pipeline is reduced, the quick assembly and disassembly of the exhaust pipeline are realized, and the sealing device has good maintainability and assembly property.

Claims

1. The self-sealing connecting structure suitable for the quick disassembly and assembly of the smoke exhaust pipe of the high-power diesel engine is characterized by comprising a V-shaped clamp (2), an exhaust pipe flange (4) and a silencer flange (5);

One end of the exhaust pipe flange (4) is fixedly connected with the exhaust pipe assembly (1), and the other end is a flange connection end;

one end of the silencer flange (5) is fixedly connected with the silencer (3), and the other end is a flange connection end;

The flange connection end of the exhaust pipe flange (4) and the flange connection end of the silencer flange (5) are fastened through a V-shaped clamp (2);

The flange connection ends of the exhaust pipe flange (4) and the silencer flange (5) are conical surfaces.