Anti-seepage, anti-deformation and anti-explosion keyboard

Abstract

The invention relates to an anti-explosion keyboard, in particular to an anti-seepage, anti-deformation and anti-explosion keyboard which comprises a housing, a cover plate is arranged at an opening in the lower end of the housing, a circuit board is arranged in the housing, keys are further arranged on the housing and matched with the circuit board, a surface anti-seepage device is arranged outside the housing, and through the surface anti-seepage device, water and dust can be prevented from entering gaps between the keys and the cover shell from the upper surface, a good sealing effect is further achieved, a key anti-seepage device is arranged between the cover shell and the keys, a gap anti-seepage device is arranged between the cover shell and the cover plate, waterproof blocking can be formed, meanwhile, the deformation resistance strength of the edge of the cover plate can be improved, the protruding edges can form positioning in the installation process, then it is guaranteed that the cover plate and the cover shell are right opposite in position, an anti-seepage supporting device is arranged at the lower end of the cover plate, the keyboard can be separated from the platform, then water can be prevented from entering the cover shell from a gap between the cover plate and the cover shell, and the anti-seepage purpose is achieved.

Description

technical field [0001] The invention relates to an explosion-proof keyboard, in particular to an anti-seepage, anti-deformation and explosion-proof keyboard. Background technique [0002] The explosion-proof metal keyboard is a kind of ordinary metal keyboard. Its working principle is similar to that of ordinary keyboards, but the structure is different. Service terminals, public information query equipment, automatic monitoring, security equipment, industrial PC numerical control platform, medical testing equipment, self-service payment machines, fixed offshore platforms, petrochemical plants, military consoles, textiles, medicine, mining, metallurgy, electric power, etc. In hazardous locations with explosive gas and dust, when the keyboard is expected to be used in a potentially explosive environment (air mixture), and the device has an ignition source, an explosion-proof metal keyboard is required. [0003] The existing explosion-proof metal keyboard mainly includes a co...

AI Technical Summary

Problems solved by technology

[0003] The existing explosion-proof metal keyboard mainly includes a cover, a cover plate is arranged at the opening of the lower end of the cover, a circuit board is arranged inside the cover, buttons are also arranged on the cover, and the buttons match the circuit board , the cover is usually made of stainless steel plate or aluminum alloy plate, which can form electromagnetic shielding, and has good sealing performance. The stainless steel plate or aluminum alloy plate is generally about 2mm. If the thickness is too thick, the overall weight is heavy, and the processing is inconvenient. In the process of use, the opening needs to be closely matched with the buttons to ensure good waterproof performance. After deformation, the key will interfere with the opening, which will affect the use and reduce the waterproof effect

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