Quickly assembled and disassembled air outlet pipeline of air inlet system

Abstract

The utility model discloses a quick dismounting and mounting air outlet pipeline of an air inlet system, which comprises a silencer shell, an inlet of the silencer shell is connected with a corrugated pipe, an inner inserting pipe is arranged in the silencer shell, a Helmholtz resonant cavity is formed in the silencer shell, and an outlet of a silencer is arranged to be a female connector and is used for inserting a downstream opponent piece; with the airflow direction as the forward direction, a step is arranged on the rear portion of the inner surface of the side wall of the silencer outlet, a sealing ring used for being in sealing fit with a downstream opponent piece is embedded in the step, a plastic check ring is arranged on the inner surface of the side wall of the silencer outlet in front of the sealing ring, and the section of the plastic check ring is in a horn mouth shape with the large front portion and the small rear portion. A plurality of radial through clamping holes are formed in the side wall of the silencer outlet in front of the plastic check ring, a clamping spring is arranged outside the side wall of the silencer outlet in a clamping mode, the clamping spring is provided with an inward protruding part, and the inward protruding part is used for being clamped into the clamping holes and embedded into a corresponding embedding groove in a downstream opponent piece so as to fix the downstream opponent piece.

Description

Technical Field

[0001] The utility model relates to the technical field of motor vehicle parts, in particular to an air outlet pipeline structure in an air intake system. Background Art

[0002] The motor vehicle engine needs to be equipped with an intake pipe, and an air filter is installed on the intake pipe to filter the air. The downstream pipe of the air filter serves as the outlet pipe of the intake system, and the outlet pipe is connected to the turbocharger or the intake manifold of the engine. In order to meet the NVH requirements, a silencer structure is provided on the outlet pipe, and the outlet of the silencer structure is connected to the turbocharger or the intake manifold of the engine as the outlet of the outlet pipe.

[0003] In the prior art, the outlet of the silencer structure is connected to the counterpart by tightening the rubber tube with a clamp. However, in some vehicle models, the surrounding parts are relatively close and there is no space for inserting a wrench, which makes disassembly and assembly difficult and inconvenient for later repair and maintenance. Utility Model Content

[0004] The utility model aims to provide an air outlet pipeline for an air intake system to be quickly disassembled and assembled, and the outlet of the air outlet pipeline can be conveniently connected to a counterpart without a wrench.

[0005] To achieve the above-mentioned purpose, the utility model provides an air intake system quick disassembly and assembly air outlet pipeline, including a muffler shell, the inlet of the muffler shell is connected to a bellows, an inner insert is arranged in the muffler shell to form a Helmholtz resonance cavity, and the outlet of the muffler shell is arranged as a female interface and is used to insert a downstream counterpart;

[0006] With the airflow direction as the forward direction, a step is provided at the rear of the inner surface of the side wall of the muffler housing outlet, a sealing ring for sealing with a downstream counterpart is embedded on the step, and a plastic retaining ring is provided on the inner surface of the muffler outlet side wall in front of the sealing ring, and the cross section of the plastic retaining ring is in a trumpet shape with a larger front and a smaller rear;

[0007] The muffler outlet side wall in front of the plastic retaining ring is provided with a plurality of radially transparent clamping holes, and the muffler outlet side wall is externally clamped with a retaining spring, which has an inner convex part, which is used to be clamped into the clamping hole and embedded in the corresponding groove on the downstream counterpart to fix the downstream counterpart.

[0008] Two convex rings are adjacently arranged in the middle of the bellows.

[0009] A worm gear clamp is sleeved on the upstream end of the bellows, and the worm gear clamp is used to make the upstream end of the bellows fit closely with the upstream counterpart.

[0010] The utility model has the following advantages:

[0011] The present invention has a simple structure and no longer requires a wrench to operate the clamp to connect the downstream counterpart (the inlet end of the intake manifold). After the downstream counterpart is inserted into the outlet of the muffler housing, the retaining spring is operated to make the inner convex part fit into the clamping hole to fix the downstream counterpart, and good sealing is ensured between the muffler outlet and the downstream counterpart under the action of the plastic retaining ring and the sealing ring.

[0012] The structure of the two convex rings in the middle effectively decouples the upstream and downstream ends of the bellows, and has a good decoupling and shock-absorbing technical effect.

[0013] The worm gear clamp has a simple structure and reliable connection, and can firmly achieve the connection function when the assembly space is sufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 yes Figure 1 Top view of the .

[0016] Figure 3 yes Figure 2 AA section view.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 5 It is a schematic diagram of the structure in which the outlet of the muffler housing is connected to the downstream counterpart. Figure 5 The downward direction in the figure is the forward direction of the present invention, and is also the airflow direction.

[0019] Figure 6 yes Figure 3 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0020] like Figures 1 to 6 As shown, the utility model provides an air intake system quick disassembly and assembly air outlet pipeline, comprising a muffler housing 1, the inlet of the muffler housing 1 is connected with a bellows 2, an inner insert 3 is arranged in the muffler housing 1 to form a Helmholtz resonance cavity, and the outlet 4 of the muffler housing is set as a female interface and is used to insert a downstream counterpart 5;

[0021] With the airflow direction as the forward direction, a step is provided at the rear of the inner surface of the side wall of the muffler housing outlet 4, on which a sealing ring 6 for sealingly matching with the downstream counterpart 5 is embedded, and a plastic retaining ring 7 is provided on the inner surface of the side wall of the muffler outlet 4 in front of the sealing ring 6 (in the downstream direction), and the cross section of the plastic retaining ring 7 is in a trumpet shape with a larger front and a smaller rear (so as to facilitate the insertion of the counterpart and press fit with the counterpart);

[0022] A plurality of radially transparent clamping holes 8 are provided on the side wall of the muffler outlet 4 in front of the plastic retaining ring 7, and a retaining spring 9 is provided on the outer side wall of the muffler outlet 4. The retaining spring 9 has an inner convex portion 10 (radially protruding inward), and the inner convex portion 10 is used to be clamped into the clamping hole 8 and embedded in the corresponding embedding groove on the downstream opponent part 5 to fix the downstream opponent part 5.

[0023] The present invention has a simple structure and no longer requires a wrench to operate the clamp to connect the downstream counterpart 5 (the inlet end of the intake manifold). After the downstream counterpart 5 is inserted into the outlet 4 of the muffler housing, the retaining spring 9 is operated to make the inner convex part 10 snap into the clamping hole 8 to fix the downstream counterpart 5, and under the action of the plastic retaining ring 7 and the sealing ring 6, a good seal is ensured between the muffler outlet 4 and the downstream counterpart 5.

[0024] Two convex rings 11 are adjacently arranged in the middle of the bellows 2. The structure of the two convex rings 11 in the middle effectively decouples the upstream end and the downstream end of the bellows 2, and has a good decoupling and shock absorbing technical effect.

[0025] A worm gear clamp 12 is sleeved on the upstream end of the bellows 2. The worm gear clamp 12 is used to make the upstream end of the bellows 2 fit tightly with the upstream counterpart.

[0026] The worm gear clamp 12 has a simple structure and reliable connection, and can firmly achieve the connection function when there is enough assembly space.

[0027] When in use, insert the downstream counterpart 5 (the inlet end of the intake manifold) into the outlet 4 of the muffler housing, and insert the upstream counterpart (the outlet pipe of the air filter) into the inlet of the bellows 2. The sealing ring 6 ensures the sealing between the downstream counterpart 5 (the inlet end of the intake manifold) and the muffler outlet 4. The plastic retaining ring 7 and the retaining spring 9 firmly assemble the downstream counterpart 5 and the muffler outlet 4. In the process of installing and removing the downstream counterpart 5, no external tools such as wrenches are required.

[0028] During assembly, it is only necessary to place the sealing ring 6 and the plastic retaining ring 7, insert the downstream counterpart 5, and lock the retaining spring 9 to complete the sealing connection between the downstream counterpart 5 and the muffler outlet 4.

[0029] When disassembling, it is only necessary to remove the retaining ring 9 to pull out the downstream counterpart 5, so that the downstream counterpart 5 is separated from the muffler outlet 4. Since there is no need to use tools such as wrenches that require a large operating space, the utility model can meet the needs of vehicles with limited installation space, and the installation and disassembly actions will not interfere with surrounding parts.

[0030] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The air intake system can quickly disassemble and assemble the air outlet pipe and the muffler housing. The inlet of the muffler housing is connected with a bellows. An inner tube is arranged in the muffler housing to form a Helmholtz resonance cavity. The characteristics are as follows: The outlet of the muffler housing is configured as a female interface and is used for inserting a downstream counterpart; With the airflow direction as the forward direction, a step is provided at the rear of the inner surface of the side wall of the muffler housing outlet, a sealing ring for sealing with a downstream counterpart is embedded on the step, and a plastic retaining ring is provided on the inner surface of the muffler outlet side wall in front of the sealing ring, and the cross section of the plastic retaining ring is in a trumpet shape with a larger front and a smaller rear; The muffler outlet side wall in front of the plastic retaining ring is provided with a plurality of radially transparent clamping holes, and the muffler outlet side wall is externally clamped with a retaining spring, which has an inner convex part, which is used to be clamped into the clamping hole and embedded in the corresponding groove on the downstream counterpart to fix the downstream counterpart.

2. The quick disassembly and assembly of the air intake system outlet pipe according to claim 1, characterized in that: Two convex rings are adjacently arranged in the middle of the bellows.

3. The quick disassembly and assembly of the air intake system outlet pipe according to claim 1, characterized in that: A worm gear clamp is sleeved on the upstream end of the bellows, and the worm gear clamp is used to make the upstream end of the bellows fit tightly with the upstream counterpart.

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