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

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. The self-sealing connecting structure comprises a V-shaped hoop, 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 connecting 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 connecting end. The flange connecting ends of the two flanges are fastened through a V-shaped clamp, and the connecting ends are conical surfaces. According to the structure, a connecting flange structure is changed into the conical surface flange, and then the conical surface flange is fastened through the V-shaped hoop, so that the pipeline is connected and sealed, an asbestos pad is not needed for sealing, a traditional sealing asbestos pad is omitted, the problem that the sealing asbestos pad is frequently replaced is solved, the maintenance cost of the exhaust pipeline is reduced, and the service life of the exhaust pipeline is prolonged. And the exhaust pipeline can be quickly disassembled and assembled, and good maintainability and assembling performance are achieved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle assembly technology, specifically a self-sealing connection structure suitable for quick disassembly and assembly of exhaust pipes for high-power diesel engines. Background Technology

[0002] Vehicle exhaust gases are characterized by high temperature and high pressure during the discharge process, therefore the exhaust pipe needs to have good sealing and high temperature resistance.

[0003] Traditional exhaust pipe connections typically use bolts, nuts, flanges, and asbestos gaskets for sealing and stability. However, to ensure the pipe's tightness, the flanges often have multiple bolt holes to ensure sufficient and uniform tension between the flanges to compress the asbestos gasket. This makes disassembly and assembly cumbersome, reducing vehicle assembly efficiency. Furthermore, repeated disassembly and assembly of the pipes can easily damage the sealing asbestos gasket, requiring it to be replaced.

[0004] Therefore, while ensuring the exhaust pipe is firmly sealed, its assemblability needs to be improved as much as possible. Utility Model Content

[0005] The purpose of this utility model is to provide a self-sealing connection structure suitable for quick disassembly and assembly of exhaust pipes of high-power diesel engines, including a V-type clamp, an exhaust pipe flange, and a muffler flange.

[0006] One end of the exhaust pipe flange is fixedly connected to the exhaust pipe assembly, and the other end is a flange connection end.

[0007] One end of the silencer flange is fixedly connected to the silencer, and the other end is a flange connection end.

[0008] The flange connection end of the exhaust pipe flange is fastened to the flange connection end of the muffler flange by a V-shaped clamp.

[0009] Furthermore, the flange connection ends of the exhaust pipe flange and the muffler flange are conical.

[0010] The technical effects of this utility model are undeniable, and its beneficial effects are as follows:

[0011] 1. Two connecting flanges are welded to the pipe connection and secured with V-type clamps to connect the exhaust pipe. It features simple assembly, quick disassembly and assembly, and stable structure.

[0012] 2. The sealing structure of the exhaust pipe has been improved, and the sealing asbestos gasket has been eliminated. When disassembling and assembling the exhaust pipe, there is no need to frequently replace the sealing asbestos gasket, which has good maintainability.

[0013] 3. The connecting sealing surface of the flange is a conical surface, which increases the connecting surface area compared to the flat flange. Under the compression of the V-type clamp, the conical surface of the flange fits together, completing the pipeline seal and providing good sealing performance. Attached Figure Description

[0014] Figure 1 A diagram showing a self-sealing connection structure suitable for quick assembly and disassembly of exhaust pipes in high-power diesel engines;

[0015] Figure 2 A schematic diagram of the assembly process of the exhaust pipe flange and the muffler flange;

[0016] Figure 2 (a) is a schematic diagram of the exhaust pipe flange and the muffler flange, (b) is a schematic diagram of the connection cone surfaces of the exhaust pipe flange and the muffler flange being aligned, and (c) is an assembly diagram of the V-type clamp.

[0017] In the diagram: 1-Exhaust pipe assembly; 2-V-type clamp; 3-Muffler; 4-Exhaust pipe flange; 5-Muffler flange. Detailed Implementation

[0018] The present invention will be further described below with reference to embodiments, but it should not be construed as the scope of the present invention being limited to the following embodiments. Various substitutions and modifications made based on ordinary technical knowledge and conventional methods in the art without departing from the above-described technical concept of the present invention should be included within the protection scope of the present invention.

[0019] Example 1:

[0020] See Figure 1 , Figure 2 A self-sealing connection structure suitable for quick disassembly and assembly of exhaust pipes of high-power diesel engines, comprising a V-type clamp 2, an exhaust pipe flange 4, and a muffler flange 5.

[0021] One end of the exhaust pipe flange 4 is fixedly connected to the exhaust pipe assembly 1, and the other end is a flange connection end.

[0022] One end of the silencer flange 5 is fixedly connected to the silencer 3, and the other end is a flange connection end.

[0023] The flange connection end of the exhaust pipe flange 4 is fastened to the flange connection end of the muffler flange 5 by a V-shaped clamp 2.

[0024] Example 2:

[0025] The main structure of this embodiment is the same as that of embodiment 1. Furthermore, the flange connection ends of the exhaust pipe flange 4 and the muffler flange 5 are conical.

[0026] Example 3:

[0027] The main structure of this embodiment is the same as any one of embodiments 1 to 2. Furthermore, the structure mainly consists of an exhaust pipe assembly 1, a V-shaped clamp 2, a muffler 3, an exhaust pipe flange 4, a muffler flange 5, etc.

[0028] The exhaust pipe flange 4 and the muffler flange 5 are integrated with the exhaust pipe assembly 1 and the muffler 3 respectively by welding. The two flanges are then clamped together by V-type clamps 2 to complete the connection of the exhaust pipe.

[0029] The connection surfaces of the exhaust pipe flange 4 and the muffler flange 5 are conical, resulting in a large sealing surface when the pipeline is connected. The pipeline can be sealed by using the V-type clamp 2.

[0030] This connection structure requires only one V-shaped clamp 2 to achieve a sealed connection of the exhaust pipe. It has a simple structure and can be quickly disassembled and assembled.

[0031] Example 4:

[0032] The main structure of this embodiment is the same as any one of embodiments 1 to 3. Further, the exhaust pipe flange 4 and the muffler flange 5 are integrated with the exhaust pipe assembly 1 and the muffler 3 respectively by welding. The connection surfaces of the exhaust pipe flange 4 and the muffler flange 5 are conical surfaces, and the sealing surface is large when the pipeline is connected. The two flanges are clamped by the V-type clamp 2, and there is no need to install the sealing asbestos gasket. The pipeline is sealed by the conical surface of the two flanges, and the connection of the exhaust pipeline is completed.

[0033] Example 5:

[0034] The main structure of this embodiment is the same as any one of embodiments 1 to 4. Furthermore, the assembly process of a self-sealing connection structure suitable for quick disassembly and assembly of exhaust pipes of high-power diesel engines is as follows:

[0035] 1) The exhaust pipe flange 4 and the muffler flange 5 are respectively integrated into the exhaust pipe assembly 1 and the muffler 3 by welding;

[0036] 2) Align the conical surfaces of the exhaust pipe flange 4 and the muffler flange 5 and tighten them with V-type clamps 2 to complete the exhaust pipe connection and seal.

[0037] Example 6:

[0038] The main structure of this embodiment is the same as any one of embodiments 1 to 5. Furthermore, in order to ensure sealing and stability, the traditional exhaust pipe connection of a vehicle often uses bolts, nuts, flanges and asbestos gaskets for sealing connection. However, in order to ensure the pipe sealing performance, the flange is often provided with multiple bolt holes to ensure that there is sufficient and uniform tension between the flanges to press the asbestos gasket. Disassembly and assembly are relatively cumbersome, and the sealing asbestos gasket needs to be replaced frequently, which increases maintenance costs.

[0039] This utility model achieves pipeline connection sealing by changing the connecting flange structure to a conical flange and fastening it with a V-shaped clamp, eliminating the need for asbestos gaskets for sealing. This eliminates the need for traditional asbestos gaskets, avoids the problem of frequent replacement of asbestos gaskets, reduces exhaust pipeline maintenance costs, and enables quick disassembly and assembly of exhaust pipelines, resulting in good maintainability and assemblability.

Claims

1. A self-sealing connection structure suitable for quick assembly and disassembly of exhaust pipes in high-power diesel engines, characterized in that: It comprises a V-shaped clamp (2), an exhaust pipe flange (4) and a muffler 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 connecting end; One end of the muffler flange (5) is fixedly connected with the muffler (3), and the other end is a flange connecting end; The flange connecting end of the exhaust pipe flange (4) is fastened with the flange connecting end of the muffler flange (5) through the V-shaped clamp (2); The flange connecting ends of the exhaust pipe flange (4) and the muffler flange (5) are conical surfaces.

Images