In-car air collecting support

Abstract

The invention discloses an in-car air collecting support, which is characterized in that limit blocks are sleeved at two ends of a metal base plate of the collecting support respectively, a slider is positioned between the two limit blocks and slidably sleeved on the metal base plate, the slider and the metal base plate are respectively provided with four collecting holes, collecting guide tubes penetrate through the collecting holes to be mounted, one end of the slider is connected onto one limit block through a limit spring, and four corners of the metal base plate are respectively fixed onto a metal rod of a front seat headrest through a spring. Owing to the structure, the collecting support has the advantages that 1, fine stabilizing effects are achieved, and the collecting support is rapid and convenient in installation as compared with traditional bolting, 2, the range of collecting objects is widened, and the collecting support is not only applicable to narrow cars, but also applicable to commercial vehicles with wide bodies and the like, and 3, effectiveness of collected air sample data is ensured.

Description

technical field [0001] The invention relates to a bracket for collecting air in a vehicle. Background technique [0002] According to the industry standard HJ400-2007 issued by the State Environmental Protection Administration, the air collection point in the car is required to be located at the midpoint of the line connecting the headrests of the front seats, and the height of the collection point is consistent with the breathing height of passengers. In practical applications, the four air collection ducts are usually tied up with ropes, and then the two ends of the ropes are respectively tied to the metal rods of the headrests of the front seats, so that the air inlets of the air collection ducts are approximately located at the headrests of the front seats. the midpoint of the pillow. [0003] The above method is cumbersome to operate, and the air inlet of the collection conduit is easily swayed left and right by the turbulence of the sampling pump. In addition, the loc...

AI Technical Summary

Problems solved by technology

[0003] The above method is cumbersome to operate, and the air inlet of the collection conduit is easily swayed left and right by the turbulence of the sampling pump. In addition, the location of the collected air does not meet the standard requirements.

Some collection devices do not have the function of holding 4 collection tubes at the same time, and need to use more fixing nuts to fix them, so the installation and maintenance are cumbersome

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