Outdoor intercom
The utility model provides an outdoor intercom includes preceding lid, back lid backup pad, button and spring, sets up the operating circuit in the cavity that preceding lid and back lid formed. Preceding lid sets up first button through -hole, sets up spacing arch in the first button through -hole...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model provides an outdoor intercom includes preceding lid, back lid backup pad, button and spring, sets up the operating circuit in the cavity that preceding lid and back lid formed. Preceding lid sets up first button through -hole, sets up spacing arch in the first button through -hole week, the backup pad sets up the second pushbutton through -hole, set up the perisporium arch in the backup pad, waterproof snare is adorned in the perisporium arch, the erection bracing board makes waterproof ring of butt between perisporium arch and antetheca, form the working chamber between first button through -hole and the second pushbutton through -hole, be connected with working beam portion under the button, it is protruding that the periphery of button is provided with the annular, the button sets up in the working chamber and passes first button through -hole, and the spring butt is between button lower surface and backup pad, and annular protruding butt is in spacing arch. Protruding and the waterproof |
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