Silencer inlet pipe assembly

Abstract

The utility model relates to the technical field of automobile parts, in particular to a silencer inlet pipe assembly which comprises an air inlet pipe, a silencing assembly, a connecting assembly, a mounting assembly and a fixing assembly. The silencing assembly comprises a metal corrugated pipe, a corrugated pipe shell, concentric-square-shaped connecting pipes and concentric-square-shaped pipes, the metal corrugated pipe is fixedly connected with the air inlet pipe, the corrugated pipe shell is fixedly connected with the metal corrugated pipe, the two concentric-square-shaped connecting pipes are fixedly connected with the metal corrugated pipe, and the concentric-square-shaped pipes are connected with the metal corrugated pipe. The connecting assembly is connected with the metal corrugated pipe, the mounting assembly is connected with the connecting assembly, and the fixing assembly is connected with the air inlet pipe, so that the problem that in the using process of the silencer air inlet pipe assembly, vibration can be generated in the using process and the silencing process of an automobile; therefore, the metal corrugated pipe is easily burnt and deformed by high-heat flames ejected by an engine, and the air inlet efficiency of the air inlet pipe is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a muffler inlet pipe assembly. Background Art

[0002] In the prior art, common automobile exhaust muffler system layouts are mid-mounted or rear-mounted, which requires a large layout space. However, for automobiles with front-mounted exhaust muffler systems, the layout space is very small due to the influence of the front suspension, front axle, engine accessories, etc., so the exhaust muffler system is not convenient to be arranged on the inner side of the left longitudinal beam or the inner side of the right longitudinal beam of the automobile, causing layout difficulties.

[0003] The existing announcement number CN113958396A discloses a muffler intake pipe assembly and its arrangement structure, including a muffler front intake pipe assembly, an exhaust brake valve assembly, and a muffler rear intake pipe assembly. The muffler front intake pipe assembly includes a front intake pipe front section, a metal bellows and a front intake pipe rear section. One end of the front intake pipe front section is connected to the flange of the exhaust port of the engine exhaust manifold through a No. 1 flange, the other end of the front intake pipe front section is connected to one end of the front intake pipe rear section through a metal bellows, the other end of the front intake pipe rear section is connected to one end of the exhaust brake valve assembly through a No. 2 flange, and the other end of the exhaust brake valve assembly is connected to the post-processor assembly through the muffler rear intake pipe assembly. An upper bracket assembly is connected to a portion of the front intake pipe rear section located near the metal bellows, and a lower bracket assembly is connected to a portion of the front intake pipe rear section located near the No. 2 flange. Both the upper bracket assembly and the lower bracket assembly are installed on the belly surface of the right longitudinal beam, which not only has good shock absorption and noise reduction effects but also is easy to arrange.

[0004] However, during the use of the above-mentioned muffler intake pipe assembly, vibrations are generated during the use of the vehicle and the muffler process, causing the metal bellows to be easily deformed by the high-temperature flame ejected from the engine, thereby reducing the intake efficiency of the intake pipe. Utility Model Content

[0005] The utility model aims to provide a muffler inlet pipe assembly, which solves the problem that during the use of the muffler inlet pipe assembly, due to the vibration generated during the use of the car and the muffler process, the metal bellows is easily deformed by the high-temperature flame ejected by the engine, thereby reducing the intake efficiency of the intake pipe.

[0006] To achieve the above-mentioned purpose, the utility model provides a muffler inlet pipe assembly, including an intake pipe, a muffler component, a connecting component, an installation component and a fixing component; the muffler component includes a metal bellows, a bellows shell, a return-shaped connecting pipe and a return-shaped pipe, the above-mentioned metal bellows is fixedly connected to the intake pipe and is located on the outside of the intake pipe, the bellows shell is fixedly connected to the metal bellows and is located on the outside of the metal bellows, the number of the return-shaped connecting pipes is two, the two return-shaped connecting pipes are respectively fixedly connected to the metal bellows and are respectively located inside the metal bellows, the number of the return-shaped pipes is multiple, the multiple return-shaped pipes are respectively connected to the metal bellows and are respectively located inside the metal bellows, the connecting component is connected to the metal bellows, the installation component is connected to the connecting component, and the fixing component is connected to the intake pipe.

[0007] Wherein, the connecting assembly includes an air outlet pipe and a connecting seat, the air outlet pipe is fixedly connected to the metal bellows and is located at one end of the metal bellows away from the air inlet pipe, and the connecting seat is fixedly connected to the air outlet pipe and is located on the outside of the air outlet pipe.

[0008] Wherein, the connecting assembly also includes a mounting tube and an air guide tube, wherein the mounting tube is fixedly connected to the connecting seat and is located inside the connecting seat, and the air guide tube is fixedly connected to the mounting tube and is located at one end of the mounting tube away from the connecting seat.

[0009] Wherein, the mounting assembly includes a support seat and a mounting rod, the support seat is fixedly connected to the mounting tube and is located at the bottom of the mounting tube, and the number of the mounting rods is two, and the two mounting rods are respectively fixedly connected to the support seat and are respectively located at the bottom of the support seat.

[0010] Among them, the fixing assembly includes a fixing seat and a fixing flange, the number of the fixing seats is two, the two fixing seats are respectively fixedly connected to the intake pipe and the air duct, and are respectively located on the outside of the intake pipe and the air duct, and each of the fixing seats is fixedly connected to the outside of the fixing flange.

[0011] The utility model discloses a muffler inlet pipe assembly, in which the flame ejected by the engine enters the muffler component through the inlet pipe, and the sound is absorbed by the metal bellows, the bellows shell provides protection for the metal bellows, the return-shaped connecting pipe provides support for the return-shaped pipe, and a plurality of return-shaped pipes are interconnected to absorb vibrations generated by the engine and during the muffler process, and protect the metal bellows from direct contact with the high-temperature flame, thereby extending the service life of the metal bellows, and solving the problem that during the use of the muffler inlet pipe assembly, the metal bellows is easily deformed by the high-temperature flame ejected by the engine due to vibrations generated during the use of the car and during the muffler process, thereby reducing the air intake efficiency of the intake pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of the muffler inlet pipe assembly of the first embodiment of the utility model.

[0014] Figure 2 It is a cross-sectional schematic diagram of the muffler assembly of the first embodiment of the utility model.

[0015] Figure 3 The utility model Figure 2 Enlarged view of point A.

[0016] Figure 4 It is a structural schematic diagram of a connecting component and an installing component of the first embodiment of the utility model.

[0017] Figure 5 It is a schematic diagram of the overall structure of the muffler inlet pipe assembly of the second embodiment of the utility model.

[0018] In the figure: 101 - air inlet pipe, 102 - metal bellows, 103 - bellows housing, 104 - return connecting pipe, 105 - return pipe, 106 - air outlet pipe, 107 - connecting seat, 108 - mounting pipe, 109 - air guide pipe, 110 - supporting seat, 111 - mounting rod, 201 - fixing seat, 202 - fixing flange. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0020] The first embodiment of the present application is:

[0021] See also Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of the muffler inlet pipe assembly of the first embodiment of the utility model. Figure 2 is a cross-sectional schematic diagram of a muffler assembly of the first embodiment of the utility model, Figure 3 The utility model Figure 2 A magnified image of Figure 4 It is a structural schematic diagram of a connecting component and a mounting component of the first embodiment of the utility model. The utility model provides a muffler inlet pipe assembly, an air intake pipe 101, a muffler assembly, a connecting component and a mounting component. The muffler assembly includes a metal bellows 102, a bellows shell 103, a return connecting pipe 104 and a return pipe 105. The connecting component includes an outlet pipe 106, a connecting seat 107, a mounting pipe 108 and an air guide pipe 109. The mounting component includes a supporting seat 110 and a mounting rod 111. The above-mentioned scheme solves the problem that during the use of the muffler inlet pipe 101 assembly, due to the vibration generated during the use of the car and the muffler process, the metal bellows 102 is easily deformed by the high-temperature flame ejected by the engine, thereby reducing the intake efficiency of the air intake pipe 101.

[0022] According to the present specific embodiment, the metal bellows 102 is fixedly connected to the air inlet pipe 101 and is located on the outside of the air inlet pipe 101. The bellows housing 103 is fixedly connected to the metal bellows 102 and is located on the outside of the metal bellows 102. There are two return-shaped connecting pipes 104, which are respectively fixedly connected to the metal bellows 102 and are respectively located inside the metal bellows 102. There are multiple return-shaped pipes 105, which are respectively connected to the metal bellows 102 and are respectively located inside the metal bellows 102. The connecting assembly is connected to the metal bellows 102, the mounting assembly is connected to the connecting assembly, the intake pipe 101 is connected to the engine, the flame ejected from the engine enters the silencer assembly through the intake pipe 101, and the sound is absorbed by the metal bellows 102, the bellows housing 103 provides protection for the metal bellows 102, the return-shaped connecting pipe 104 provides support for the return-shaped pipe 105, and a plurality of return-shaped pipes 105 are interconnected to absorb the vibration generated by the engine and the silencer process, protect the metal bellows 102 from direct contact with the high-temperature flame, and extend the service life of the metal bellows 102.

[0023] Among them, the outlet pipe 106 is fixedly connected to the metal bellows 102 and is located at one end of the metal bellows 102 away from the air inlet pipe 101. The connecting seat 107 is fixedly connected to the outlet pipe 106 and is located on the outside of the outlet pipe 106. The gas after preliminary silencing by the silencer assembly is discharged from the outlet pipe 106, and the connecting seat 107 provides support for the outlet pipe 106.

[0024] Secondly, the mounting tube 108 is fixedly connected to the connecting seat 107 and is located inside the connecting seat 107. The air guide pipe 109 is fixedly connected to the mounting tube 108 and is located at one end of the mounting tube 108 away from the connecting seat 107. The mounting tube 108 provides support for the equipment, and the air guide pipe 109 is used to connect to the muffler body to guide the gas into the subsequent muffler and catalyst.

[0025] Again, the support seat 110 is fixedly connected to the mounting tube 108 and is located at the bottom of the mounting tube 108. There are two mounting rods 111. The two mounting rods 111 are respectively fixedly connected to the support seat 110 and are respectively located at the bottom of the support seat 110. The support seat 110 provides support for the mounting rods 111. The mounting rods 111 are connected to the vehicle frame to facilitate the installation of the inlet pipe assembly on the vehicle frame.

[0026] When using the muffler inlet pipe assembly of this embodiment, the flame ejected by the engine enters the muffler component through the intake pipe 101, and the sound is absorbed by the metal bellows 102. The bellows housing 103 provides protection for the metal bellows 102, and the circular connecting pipe 104 provides support for the circular pipe 105. A plurality of circular pipes 105 are interconnected to absorb vibrations generated by the engine and during the muffler process, and to protect the metal bellows 102 from direct contact with the high-temperature flame, thereby extending the service life of the metal bellows 102. This solves the problem that during the use of the muffler inlet pipe 101 assembly, the metal bellows 102 is easily deformed by the high-temperature flame ejected by the engine due to vibrations generated during the use of the car and the muffler process, thereby reducing the intake efficiency of the intake pipe 101.

[0027] The second embodiment of the present application is:

[0028] Based on the first embodiment, please refer to Figure 5 ,in, Figure 5 It is a schematic diagram of the overall structure of the muffler inlet pipe assembly of the second embodiment of the utility model.

[0029] The muffler inlet pipe assembly of this embodiment further includes a fixing component, and the fixing component includes a fixing seat 201 and a fixing flange 202 .

[0030] According to this specific embodiment, there are two fixing seats 201, which are respectively fixedly connected to the intake pipe 101 and the air duct 109 and are respectively located on the outside of the intake pipe 101 and the air duct 109. A fixing flange 202 is fixedly connected to the outside of each fixing seat 201, and the fixing seat 201 provides support for the fixing flange 202. The intake pipe 101 and the air duct 109 are respectively installed between the engine and the muffler through the fixing flange 202.

[0031] When the muffler inlet pipe assembly of this embodiment is used, the fixing seat 201 provides support for the fixing flange 202 , and the air inlet pipe 101 and the air guide pipe 109 are respectively installed between the engine and the muffler through the fixing flange 202 .

[0032] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A muffler inlet pipe assembly, comprising an air inlet pipe, characterized in that: Also included are a muffler assembly, a connection assembly, a mounting assembly, and a fixing assembly; The silencer assembly includes a metal bellows, a bellows shell, a return-shaped connecting pipe and a return-shaped pipe. The metal bellows is fixedly connected to the intake pipe and is located on the outside of the intake pipe. The bellows shell is fixedly connected to the metal bellows and is located on the outside of the metal bellows. There are two return-shaped connecting pipes, and the two return-shaped connecting pipes are respectively fixedly connected to the metal bellows and are respectively located inside the metal bellows. There are multiple return-shaped pipes, and the multiple return-shaped pipes are respectively connected to the metal bellows and are respectively located inside the metal bellows. The connecting assembly is connected to the metal bellows, the mounting assembly is connected to the connecting assembly, and the fixing assembly is connected to the intake pipe.

2. The muffler inlet pipe assembly according to claim 1, characterized in that: The connecting assembly includes an air outlet pipe and a connecting seat. The air outlet pipe is fixedly connected to the metal bellows and is located at one end of the metal bellows away from the air inlet pipe. The connecting seat is fixedly connected to the air outlet pipe and is located outside the air outlet pipe.

3. The muffler inlet pipe assembly according to claim 2, characterized in that: The connection assembly also includes a mounting tube and an air guide tube. The mounting tube is fixedly connected to the connection seat and is located inside the connection seat. The air guide tube is fixedly connected to the mounting tube and is located at one end of the mounting tube away from the connection seat.

4. The muffler inlet pipe assembly according to claim 3, characterized in that: The mounting assembly includes a support seat and a mounting rod. The support seat is fixedly connected to the mounting tube and is located at the bottom of the mounting tube. There are two mounting rods. The two mounting rods are respectively fixedly connected to the support seat and are respectively located at the bottom of the support seat.

5. The muffler inlet pipe assembly according to claim 3, characterized in that: The fixing assembly includes a fixing seat and a fixing flange. There are two fixing seats. The two fixing seats are fixedly connected to the air intake pipe and the air duct respectively and are located on the outside of the air intake pipe and the air duct respectively. A fixing flange is fixedly connected to the outside of each fixing seat.

Images