Airtightness detection device for automobile engine pipeline

By designing an airtightness testing device for support components and seals, the problem of complexity and insufficient stability of existing engine pipeline airtightness testing equipment has been solved. This achieves stability of engine pipelines and stable support of seals, ensuring the accuracy and stability of airtightness testing.

CN223756227UActive Publication Date: 2026-01-02NINGBO MACON AUTO PARTS CO LTD
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Patent Information

Application Number
CN202520338705.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-01-02
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

Existing equipment for testing the airtightness of automotive engine pipelines is complex and lacks stability, which affects the test results.

Method used

Design an airtightness testing device including a base, a support assembly, and a seal. The support assembly stably fixes the engine pipeline, the seal ensures a tight seal during testing, and the seal is driven by a cylinder to seal the pipeline, forming a good sealing environment.

Benefits of technology

It achieves stable support and sealing of engine pipelines, ensures the accuracy of airtightness testing, avoids interference from external air, and improves the reliability of test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an airtight detection device for an automobile engine pipeline, which is used for carrying out airtight detection on the engine pipeline, the engine pipeline is composed of an upper pipeline, a lower pipeline and a thin pipeline and comprises a base, and the base is provided with a lower supporting assembly, an upper supporting assembly and a thin supporting block. The upper supporting assembly, the lower supporting assembly and the thin supporting block are used for supporting an upper pipeline, a lower pipeline and a thin pipeline correspondingly, and a sealing piece used for sealing an engine pipeline is arranged on the base. The engine pipeline supporting device has the advantages that the structure is simple and reliable, an engine pipeline can be stably supported, and all pipe openings of the pipeline are sealed through the sealing pieces to form a good sealing environment.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air tightness detection, especially to an air tightness detection device for automobile engine pipeline. BACKGROUND

[0002] The automobile engine pipeline needs to be formed after bending and welding processing, and needs to pass through air tightness detection before leaving factory. The existing automobile engine pipeline is composed of upper pipeline, lower pipeline and thin pipeline, and has a mounting plate welded thereon. During air tightness detection, a special gauge needs to be designed according to the shape of the automobile engine pipeline to realize positioning detection of the engine pipeline, ensure its stability, and seal the port of the automobile engine pipeline, and then perform air tightness detection operation. The existing air tightness detection equipment is relatively complex and has poor stability, thereby affecting the air tightness detection result. SUMMARY

[0003] Therefore, the utility model aims at overcoming the defects in the prior art, and provides an air tightness detection device for automobile engine pipeline.

[0004] The utility model provides an air tightness detection device for automobile engine pipeline, which is used for air tightness detection of engine pipeline. The engine pipeline is composed of upper pipeline, lower pipeline and thin pipeline, and comprises a base 1. The base 1 is provided with a lower support assembly 2, an upper support assembly 3 and a thin support block 4. The upper support assembly 3, the lower support assembly 2 and the thin support block 4 are used for supporting the upper pipeline, the lower pipeline and the thin pipeline respectively. The base 1 is provided with a sealing element for sealing the engine pipeline.

[0005] Further, the lower support assembly 2 comprises a first lower support block 2.1, a second lower support block 2.2, a third lower support block 2.3 and a fourth lower support block 2.4. The first lower support block 2.1, the third lower support block 2.3 and the fourth lower support block 2.4 support the pipe opening of the lower pipeline, and the second lower support block 2.2 supports the middle section of the lower pipeline.

[0006] Further, the upper support assembly 3 comprises a first upper support block 3.1 and a second upper support block 3.2. The first upper support block 3.1 and the second upper support block 3.2 support the pipe opening of the upper pipeline.

[0007] Further, the base 1 is vertically provided with a side leaning block 5 for accommodating the engine pipeline.

[0008] Further, the sealing element is a sealing column 7, which is driven by a first air cylinder 6 and used for sealing the upper and lower pipelines. The center of the sealing column 7 is provided with a sealing gasket.

[0009] Further, the sealing member is a sealing tube 9 driven by the second cylinder 8 and used for sealing the fine pipe.

[0010] The engine pipe is stably supported, each pipe opening of the pipe is sealed by the sealing member to form a good sealing environment, the upper supporting assembly, the lower supporting assembly and the fine supporting block are respectively used for supporting the upper pipe, the lower pipe and the fine pipe, the lower supporting block ensures the stability of the pipe opening connecting part and bears the middle section of the pipe, deformation or displacement of the lower pipe during detection is prevented, the side leaning block can be used for positioning the engine pipe, the sealing column driven by the first cylinder abuts against the pipe opening of the upper and lower pipes and seals the pipe opening through the sealing gasket, and the sealing tube driven by the second cylinder is sleeved into the pipe opening of the fine pipe to seal the pipe opening of the fine pipe. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a perspective view of the utility model;

[0012] Fig. 2 It is a front view of the utility model;

[0013] Fig. 3 It is a structure schematic view when the engine pipe is placed. DETAILED DESCRIPTION

[0014] The utility model will be described in detail below with reference to the drawings.

[0015] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model will be described in further detail below with reference to the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model and not used to limit the utility model.

[0016] Refer to Figs. 1 to 3The utility model provides a kind of air-tight detection device of automobile engine pipeline, for carrying out air-tight detection to engine pipeline, engine pipeline is composed of upper pipeline, lower pipeline, thin pipeline, it includes base 1, base 1 is provided with lower support component 2, upper support component 3, thin support block 4, upper support component 3, lower support component 2, thin support block 4 are used to support upper pipeline, lower pipeline, thin pipeline respectively, upper support component, lower support component, thin support block ensure that entire engine pipeline is in stable state during detection process, avoid to influence detection result due to unstable support, base 1 is vertically provided with side rest block 5 for accommodating engine pipeline side rest, side rest block can accommodate engine pipeline side rest to position engine pipeline.Base 1 is provided with sealing element for the sealing of engine pipeline, sealing element can seal each pipe opening of pipeline, so that entire engine pipeline forms good sealing environment, guarantee the accuracy of air-tight detection, avoid deviation of detection result due to external air interference.

[0017] Refer to Fig. 2 、 Fig. 3 Lower support component 2 includes first lower support block 2.1, second lower support block 2.2, third lower support block 2.3, fourth lower support block 2.4, first lower support block 2.1, third lower support block 2.3, fourth lower support block 2.4 support the pipe opening of lower pipeline, and second lower support block 2.2 supports the middle section of lower pipeline. The lower support block not only ensures the stability of the pipe opening connection part, but also takes into account the load bearing of the middle section of the pipeline, preventing the lower pipeline from deforming or shifting during detection.

[0018] Upper support component 3 includes first upper support block 3.1 and second upper support block 3.2, which support the pipe opening of upper pipeline. The upper support block supports the pipe opening of the upper pipeline, effectively stabilizing the upper pipeline and ensuring stability during detection.

[0019] The sealing element is a sealing column 7, which is driven by a first air cylinder 6 and used to seal the upper and lower pipelines. The center of the sealing column 7 is provided with a sealing gasket. The sealing column driven by the first air cylinder abuts against the pipe opening of the upper and lower pipelines and seals the pipe opening through the sealing gasket.

[0020] The sealing element is a sealing pipe 9, which is driven by a second air cylinder 8 and used to seal the thin pipeline. The sealing pipe driven by the second air cylinder is sleeved into the pipe opening of the thin pipeline, thereby sealing the pipe opening of the thin pipeline.

[0021] The above is only the preferred embodiment of the utility model, and it should be noted that, for ordinary skilled persons in the technical field, without departing from the technical principles of the utility model, a number of improvements and refinements can be made, which should also be considered within the protection scope of the utility model.

Claims

1. A kind of automobile engine pipeline airtight detection device, for carrying out airtight detection to engine pipeline, engine pipeline is made of upper pipeline, lower pipeline, thin pipeline, it is characterized by: The base is provided with a lower supporting assembly, an upper supporting assembly and a fine supporting block, the upper supporting assembly, the lower supporting assembly and the fine supporting block are respectively used for supporting an upper pipeline, a lower pipeline and a fine pipeline, and the base is provided with a sealing element used for sealing the engine pipeline.

2. A leak detection apparatus for an automotive engine line as defined in claim 1, wherein: The lower supporting assembly comprises a first lower supporting block, a second lower supporting block, a third lower supporting block and a fourth lower supporting block, the first lower supporting block, the third lower supporting block and the fourth lower supporting block support the pipe opening of the lower pipeline, and the second lower supporting block supports the middle section of the lower pipeline.

3. A leak detection apparatus for an automotive engine line as defined in claim 1, wherein: The upper supporting assembly comprises a first upper supporting block and a second upper supporting block, and the first upper supporting block and the second upper supporting block support the pipe opening of the upper pipeline.

4. A leak detection apparatus for automotive engine lines as defined in claim 1, wherein: The base is vertically provided with a side-lying block used for side-lying the engine pipeline.

5. A leak detection apparatus for automotive engine lines as defined in claim 1, wherein: The sealing element is a sealing column driven by a first air cylinder and used for sealing the upper and lower pipelines, and the center of the sealing column is provided with a sealing gasket.

6. A leak detection apparatus for an automotive engine line as defined in claim 1, wherein: The sealing element is a sealing pipe driven by a second air cylinder and used for sealing the fine pipeline.