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Sealing performance detection device for vehicle sealing strip

A technology for sealing detection and sealing strip installation. It is used in machine sealing ring testing, using liquid/vacuum for liquid-tightness measurement, and measuring the acceleration and deceleration rates of fluids. It can solve problems affecting vehicle assembly and production cycle. , to achieve the effect of improving the qualification rate of assembly, novel design and simple structure

Active Publication Date: 2022-05-31
CHONGQING VOCATIONAL COLLEGE OF TRANSPORTATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rain test is the last test after the vehicle completes the assembly of each system of the vehicle and passes the test. Especially when a large number of vehicles are produced, it is only found that the sealing strips of a large number of vehicles cannot achieve the expected effect during the rain test. , it will affect the vehicle assembly and production cycle

Method used

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  • Sealing performance detection device for vehicle sealing strip
  • Sealing performance detection device for vehicle sealing strip
  • Sealing performance detection device for vehicle sealing strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0043] The difference between Embodiment 2 and Embodiment 1 is that an elastic air bag is provided inside the piston chamber 6, and the exhaust port of the elastic air bag communicates with the end of the connecting pipe 7 located in the piston chamber 6, and the connecting plate 11 is provided with a driving piston. The lifting motor of the plate 10 moves up and down, and the motor drives the piston plate 10 to move down and squeeze the air bag to inject gas into the lower chamber 2, which can better control the amount of gas injection, that is, control the gas pressure in the lower chamber 2, and make the sealing The pressure of the sealing environment of the bar 15 is adjustable, and the gas injection of the air bag can also avoid the air leakage caused by the bad seal between the piston plate 10 and the piston chamber 6.

Embodiment 3

[0045] The difference between embodiment 3 and embodiment 1 is that the design of the elastic sealing surface is different. In this specific embodiment, the elastic sealing surface 3 is preferably a shrapnel, and one side of the shrapnel is fixedly connected with the lower cavity 2. The other side is inclined upwards. During the process from contact to close contact between the sealing strip 15 and the inclined upward shrapnel, under the elastic action of the shrapnel, the two are in close contact, which not only increases the moving distance of the piston plate 10, but also improves the gas flow. The injection effect can improve the contact effect between the two at the same time, and the phenomenon of air leakage from the gap between the two will not occur when there is no close contact, so that the measurement of the sealing effect of the sealing strip 15 is more accurate. At the same time, when the upper cover body 8 moves up , the shrapnel resets and tilts upward, making i...

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Abstract

The invention relates to the technical field of vehicle sealing, in particular to a vehicle sealing strip sealing performance detection device. Comprising a mounting bottom plate, a lower cavity is formed in the upper surface of the mounting bottom plate, an elastic sealing face is arranged on the inner side face of the lower cavity, an upper cover body is arranged over the lower cavity, and a sealing strip mounting part is arranged on the surface, facing the lower cavity, of the upper cover body; lifting mechanisms used for controlling the upper cover body to move in the vertical direction are arranged on the two side faces in the length direction of the upper cover body, connecting plates and piston plates are arranged on the two side faces in the width direction of the upper cover body, and the piston plates are connected to the side faces of the upper cover body through the connecting plates. The lower cavity is provided with a piston cavity corresponding to the piston plate in position and a connecting pipe, and the lower portion of the piston cavity is communicated with the interior of the lower cavity through the connecting pipe. According to the technical scheme, the installation environment of the sealing strip on the vehicle is simulated, the sealing effect detection test is carried out on the sealing strip, and the sealing effect of the sealing strip installed on the vehicle is guaranteed.

Description

technical field [0001] The invention relates to the technical field of vehicle sealing, in particular to a sealing performance detection device for vehicle sealing strips. Background technique [0002] The sealing strip is a common sealing element on the vehicle, mainly used for sealing the sealing surface of the car body, for example, the door sealing strip, the sealing strip is installed on the car door or the car body, and is used to seal the joint surface of the car body and the car door. It plays the role of waterproof, sound insulation, vibration reduction, etc. The sealing performance of the sealing strip is an important standard for the quality of the sealing strip. [0003] In the prior art, the detection of the sealing performance of the sealing strip is mainly the rain test. Taking the sealing strip installed on the car as an example, after the assembly of the whole vehicle is completed and the debugging is qualified, it can enter the rain shower room for the rain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26G01M13/005
CPCG01M3/26G01M13/005Y02T10/40
Inventor 冉俊轶刘钊
Owner CHONGQING VOCATIONAL COLLEGE OF TRANSPORTATION