Key spring for electric appliance

The utility model discloses a button spring for electric appliances, which comprises a rubber telescopic tube, an upper end cover and a lower end cover are respectively adhered to the top and the bottom of an inner cavity of the rubber telescopic tube through adhesive, a spring is adhered between th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	HAO XIANGXIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING CYLINDERS ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING PISTONS RELAYS SEALINGS SELECTORS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a button spring for electric appliances, which comprises a rubber telescopic tube, an upper end cover and a lower end cover are respectively adhered to the top and the bottom of an inner cavity of the rubber telescopic tube through adhesive, a spring is adhered between the upper end cover and the lower end cover through adhesive, and the rubber telescopic tube comprises a base material layer. A waterproof layer is adhered to the surface of the base material layer through an adhesive, a heat insulation layer is adhered to the surface of the waterproof layer through an adhesive, an anti-aging layer is adhered to the surface of the heat insulation layer through an adhesive, and the upper end cover and the lower end cover are both made of insulating plastic. According to the utility model, the rubber telescopic tube, the base material layer, the waterproof layer, the heat insulation layer, the anti-aging layer, the upper end cover, the lower end cover and the spring are matched for use