Filter units and filter screen

Abstract

The invention discloses filter units which comprise a screen body and a covering edge, wherein the screen body comprises an air inlet surface and an air outlet surface; the air inlet surface and the air outlet surface are oppositely arranged; the covering edge surrounds the periphery of the screen body; one side edge of the covering edge protrudes from the air inlet surface; the other side edge of the covering edge protrudes from the air outlet surface; a first mounting part and a second mounting part are respectively arranged on at least two opposite outer sides of the screen body on the covering edge; the first mounting part of one screen body is used for being fixedly connected with the second mounting part of another screen body in a detachable manner. The invention further discloses a filter screen adopting the filter units. The filter units and the filter screen not only are high in strength and resistant to screen body abrasion, but also can be assembled and disassembled conveniently and rapidly, so that the maintenance cost is reduced.

Description

technical field [0001] The invention relates to a filter device, in particular to a filter unit and a filter net. Background technique [0002] In the air filtration device, a filter is often configured to filter the impurity particles in the air. Ordinary filter screen is a network body composed of multiple interwoven wires. The filter screen is installed between the air inlet and air outlet of the filter, and the air will pass through the mesh of the network body. Due to the limited filtration and adsorption life of the filter screen, it is often necessary to replace the filter screen. [0003] However, in current filters with replaceable filter screens, the filter screen is generally inserted into the slot of the filter, and friction or relative extrusion will occur between the filter screen and the slot, and the screen body will be easily damaged during assembly and disassembly. , affecting the filtering effect. Moreover, when the filter is shaken, the mesh body is al...

AI Technical Summary

Problems solved by technology

[0003] However, in current filters with replaceable filter screens, the filter screen is generally inserted into the slot of the filter, and friction or relative extrusion will occur between the filter screen and the slot, and the screen body will be easily damaged during assembly and disassembly. , affecting the filtering effect

Moreover, when the filter is subjected to vibration, the mesh body is also easy to tear

[0004] In addition, in order to achieve a more effective filtering effect, multiple filter screens are often set in the filter for cascading filtration, which not only occupies a large volume, but also is not suitable for replacement in different filtering occasions, and its applicability is narrow. In addition, when the filter screen After damage or reaching the end of life, the filter needs to be replaced as a whole, resulting in high maintenance costs for the filter

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