Dust prevention structure for venting port of portable fluorinated oil tank

Abstract

The invention discloses a dust prevention structure for a venting port of a portable fluorinated oil tank. The dust prevention structure comprises the venting port formed in the oil tank and a venting cover matched with the venting port. The dust prevention structure is characterized in that the venting port protrudes out of the oil tank; a first grid layer is fixed to the venting port or the first grid layer and the venting port are formed integrally; the venting cover is in running fit with the venting port; a second grid layer opposite to the first grid layer is arranged on the venting cover; grids on the first grid layer are in one-to-one correspondence with grids on the second grid layer; by means of the relative rotation of the venting cover and the venting port, the grids on the first grid layer and the grids on the second grid layer are closed in a staggered mode or opened in an overlapped mode. According to the dust prevention structure, under the condition that the venting port is opened for use, the venting port can be guaranteed to be unblocked, a good dust prevention function is achieved, and the quality of oil in the fluorinated oil tank is effectively guaranteed.

Description

technical field [0001] The invention relates to a dust-proof structure for the vent port of a portable fluorinated oil tank. Background technique [0002] Known portable fluorinated oil tanks are usually designed with a vent, which has two functions: 1) It can prevent negative pressure in the tank, and opening the vent when filling oil can speed up the flow rate, making oil filling more time-saving Labor-saving; 2) In areas where the altitude often changes rapidly, such as when running on a plateau, it can automatically adjust the atmospheric pressure difference inside and outside the box, so that it will not burst or make the box collapse. [0003] The above-mentioned air vent is usually screwed with a screw cap, which can isolate dust pollution. However, when it is opened, due to the lack of an effective dust-proof structure, it is very easy for the external dust medium to enter the interior of the fuel tank and cause pollution, especially the dust particles in the air. l...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned air vents are usually screwed tightly with screw caps, which can isolate dust pollution. Dust medium enters the interior of the fuel tank to cause pollution, especially in areas with a large proportion of dust particles in the air

[0004] The applicant previously applied for a patent of invention with the patent number ZL201320176739 titled "A Protective Structure for a Vent Lid for a Barrel", which involves the above-mentioned "vent" structure, however, the core of the patent is to add an anti-collision protrusion on the side of the "air vent", which cannot play a role in preventing dust

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