Oil tank air tightness water testing device

Abstract

The invention discloses an oil tank airtightness water inspection device, comprising a base, an oil tank fixing device, a support and a screw rod lifter, wherein the oil tank fixing device comprises a U-shaped underframe, a movable beam, an oil tank press plate and a press plate air cylinder, wherein the upper end of the side wall of the U-shaped underframe is fixedly connected with the movable beam; the upper end of the cylinder body of the press plate air cylinder is fixedly connected with the movable beam, the lower end of a piston is fixedly connected with the oil tank press plate, and the lower surface of the oil tank press plate and the upper surface of the bottom of the U-shaped underframe are respectively provided with elastic branch depression bars which are vertical to the direction of the movable beam; the support is an inverted U-shaped support, and the lower end of the vertical wall of the support is fixedly connected with the wall of an inspection water tank; the oil tank fixing device is arranged between the vertical walls of the support, and two ends of the movable beam are respectively in vertical sliding fit with corresponding vertical walls of the support; the screw rod lifter comprises a lifter main body, a screw rod and a joint flange, and the joint flange is hinged at the head of the screw rod and is fixedly connected with the oil tank press plate; and the middle of the support beam is provided with a through hole, the lifter main body is fixedly connected to the support beam, the head of the screw rod penetrates through the through hole, and the joint flange is fixedly connected with the movable beam.

Description

technical field [0001] The invention relates to a detection device, in particular to a water detection device for the air tightness of an automobile fuel tank. Background technique [0002] With the rapid development of society and the rapid development of automobile manufacturing industry, automobiles have become an indispensable means of transportation in modern society. At present and for quite a long time in the future, automobiles mainly use fuel as their energy source, and the quality of automobile fuel tanks used to hold fuel is directly related to the safety performance of automobiles. As one of the important indicators of the quality of automobile fuel tanks, the airtightness of fuel tanks requires water inspection for every 10 domestic vehicles, and 100% water inspection for export kits. [0003] Announced on April 13, 2011, the announcement number is CN201795904U, and the Chinese patent document named "Fuel Tank Air Tightness Detection Device" discloses a fuel ta...

AI Technical Summary

Problems solved by technology

The existing problems are: the fixed structure of the fuel tank is complicated, the installation and fixed position adjustment of the fuel tank on the fuel tank fixture is inconvenient and time-consuming, so the water inspection efficiency is low, and the contact position between the fuel tank, the pressure head and the beam is locally stressed, prone to deformation damage

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