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Device for detecting sealing property of fuel tank cover

A sealing detection, fuel tank cap technology, applied in the direction of fluid tightness testing, measuring devices, liquid tightness measurement using liquid/vacuum degree, etc., can solve the problems of undetectable detection and achieve convenient calculation and leakage Quantity, the effect of increasing adaptability

Active Publication Date: 2019-12-27
济南正诚汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: because the above-mentioned detection device is suitable for the factory to perform batch detection on the same type of products, and because the detection center detects many vehicle models, the size of the fuel tank caps of different vehicle models has certain differences. difference, so it is impossible to detect the detection

Method used

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  • Device for detecting sealing property of fuel tank cover
  • Device for detecting sealing property of fuel tank cover
  • Device for detecting sealing property of fuel tank cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0037] Embodiment: a kind of fuel tank cap tightness detection device, such as figure 1 As shown, a mounting structure 100 , a pressurizing structure 200 , a detection structure 300 and an adaptive sealing cover 400 are included. The installation structure 100 is used to install the fuel tank cap; the pressurization structure 200 communicates with the installation structure 100 and provides it with the compressed gas required for testing the sealing; the detection structure 300 is used to detect the sealing performance and leakage of the fuel tank cap.

[0038] Such as figure 1 As shown, the mounting structure 100 includes a mounting block 101 , a pressing mechanism 102 and an adjusting structure 103 connected to the mounting block 101 . The mounting block 101 is a cylinder with a cylindrical cavity 104 opened therein. The upper end surface of the mounting block 101 is provided with a circular mounting port 105 communicating with the cavity 104, and the adjusting structure 1...

Embodiment 2

[0047] Embodiment 2: a kind of fuel tank cap tightness detection device, differs from embodiment 1 in that, as Figure 5 As shown, the intake pipe 201 is connected with a first gas flow meter 302 for detecting the gas flow in the intake pipe 201 , and the exhaust pipe 202 is provided with a second gas flow meter 303 for detecting the gas flow in the exhaust pipe 202 . The air pressure source 203 continuously fills the cavity 104 with compressed gas through the intake pipe 201, and adjusts the exhaust valve 205 to maintain the air pressure in the cavity 104 equal to the air pressure required by the standard under the premise of continuously exhausting the exhaust pipe 202. The leakage amount is calculated by using the difference between the first gas flowmeter 302 and the second gas flowmeter 303, which is more convenient for calculating the leakage amount.

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Abstract

The invention discloses a device for detecting the sealing property of a fuel tank cover, and belongs to the technical field of automobile detection. According to the key points of the technical scheme, the device comprises a mounting structure for mounting the fuel tank cover, a pressurizing structure communicating with the mounting structure and a detection structure for detecting a leakage quantity, wherein the mounting structure comprises a mounting block which is internally provided with a cavity; the mounting block is provided with a mounting hole communicating with the cavity; the mounting block is connected with a pressing mechanism for applying a pressure to the fuel tank cover; the pressure applied to the fuel tank cover by the pressing mechanism is parallel to the central axis of the mounting hole; the pressurizing structure comprises an air inlet pipe communicating with the detection cavity and an air pressure source communicating with the air inlet pipe; and the detectionstructure comprises a pressure gauge for detecting the pressure in the cavity. The device has the effect of being capable of detecting the sealing properties of various fuel tank covers with differentsizes.

Description

technical field [0001] The invention relates to the technical field of automobile detection, more specifically, it relates to a fuel tank cap sealing performance detection device. Background technique [0002] The oil inlet of the automobile fuel tank will be provided with a fuel tank cover, and the fuel tank cover is used to seal the fuel tank to prevent fuel leakage during vehicle driving. With the development of my country's automobile industry, the country's requirements for the automobile manufacturing industry are getting higher and higher. GB18296-2001 also has requirements for the sealing of the fuel tank cap of the automobile. And this test is also included in the scope of the annual vehicle inspection. [0003] At present, the Chinese invention patent with the publication number CN102183346B discloses a method for detecting the leakage flow rate of the automobile fuel tank cap, which is carried out in sequence as follows: a. prepare the test instrument, b. detect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/32
CPCG01M3/3272
Inventor 刘晓明孟艳梅冯玉强
Owner 济南正诚汽车科技有限公司