The invention provides an external tyre pressure sensor. The external tyre pressure sensor comprises a sensor structure, an ejection nut and a protective jacket, wherein the sensor structure comprises a shell, a bracket, an electronic assembly and a dismounting-preventing sheet; a screw tooth is formed in the bracket and is in thread connection with an inflating valve; the tail end of the bracket and the tail end of the shell are separated in the radial direction; the dismounting-preventing sheet is contained between the tail end of the bracket and the tail end of the shell; the ejection nut is in thread connection with the inflating valve and props against the dismounting-preventing sheet; the protective jacket is in sleeve joint with the inflating valve; the top end of the protective jacket is matched with the shell to seal the ejection nut and the inflating valve; one of the inner side surface of the dismounting-preventing sheet and the tail end of the bracket protrudes along the radial direction to form a bulge and an inwards concave clamping groove formed by the other one of the inner side surface of the dismounting-preventing sheet and the tail end of the bracket is used for containing the bulge; one of the outer side surface of the dismounting-preventing sheet and the tail end of the shell protrudes along the radial direction to form a convex lug; and an inwards concave opening formed by the other one of the outer side surface of the dismounting-preventing sheet and the tail end of the shell is used for containing the convex lug, so that the anti-theft reliability is stronger.
External tyre pressure sensor and mounting and dismounting tool thereof
2015-04-22
Patent
Elektronische Ressource
Englisch
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