Operation keyboard with waterproof anti-smashing structure

Abstract

The invention relates to an operation keyboard with a waterproof anti-smashing structure. The operation keyboard comprises a printed circuit board, an air guiding layer, a metal reed, a top layer thin film, an inserted connection piece and an indicating film. The printed circuit board is a double-face board, the inserted connection piece is welded to the printed circuit board, the air guiding layer comprises a thin film coated with double-faced adhesive tape, one face of the air guiding layer is pasted with the printed circuit board, the other face of the air guiding layer is pasted with the top layer thin film to package and fix the metal reed, the air guiding layer is provided with an air guiding groove and a fake key, and the indicating film is placed on the top layer thin film. By means of the operation keyboard, the fake key is arranged on the air guiding layer, and sufficient air exchange space is provided when multiple keys are operated; a thickened thin film is arranged on the periphery of the top layer thin film, and looseness of the double-faced adhesive tape on the peripheral thin film due to keyboard middle protruding caused by an uneven keyboard metal lining plate is avoided; a protruding protection layer with elasticity is additionally arranged on the indicating film, the keyboard is prevented from being damaged by external sharp mechanical stress, the keyboard smashing-preventing and anti-smashing reliability is improved, and the operation keyboard has the advantages of being convenient to install, maintain and use and the like.

Description

technical field [0001] The invention relates to an operating keyboard with a waterproof and anti-smashing structure, in particular to an operating keyboard installed and used on a coal mining face control device. Background technique [0002] In the production process of the coal mining face in the coal mine, there is dust, spray, and flakes, which cause the operation keyboard on the control device to often enter water, tide, or be smashed, thereby reducing the reliability of the control device. Under normal circumstances, the service life of the control device is more than 5 years, while the service life of the operating keyboard is less than two years. In coal mines with harsh environments, it sometimes takes less than half a year, so that the reliability of the operating keyboard and the control device cannot match. Reliability has become a bottleneck restricting the service life of coal mining face equipment. [0003] At present, most of the operating keyboards used for...

AI Technical Summary

Problems solved by technology

The operating keyboards of foreign companies often fail due to poor waterproof performance. Later, the process was improved, and the method of using the whole glue and crushing the metal frame to improve the waterproof ability of the product, but the product cannot be repaired and replaced. It becomes a one-time product, and when it is smashed, only the overall replacement of the control device can be carried out, which reduces the maintainability of the equipment

[0004] In the prior art, CN201126776Y discloses a waterproof keyboard, which has an external airbag to achieve overall full sealing, but this external airbag is easily damaged and is not suitable for underground working faces with harsh environments, and the airbag is independent of the entire Keyboard shell, transportation, installation and use are very inconvenient

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