Patent ID: 8403297
Filing Date: 2013-03-26
Classification: H01H

Abstract:
1. A switch for fluid control in kitchen and bath appliances, wherein the switch comprises: a sliding shaft, a fixed base, the fixed base having a sliding through hole for passing the sliding shaft, and a retaining hook, whereby a surface of the sliding shaft comprises the surface of the sliding shaft further comprising the switch further comprising a first spring pushing the sliding shaft along a direction from the head of the sliding shaft towards its tail; wherein the head of the sliding shaft or an extension of the sliding shaft extending from the head of the sliding shaft extends out of the sliding through hole in the fixed base for connection with an auxiliary structure for fluid control; wherein the retaining hook is connected by hooking to the fixed base, and an O-shaped ring spring surrounds an outer surface of the fixed base and the retaining hook for fixing the retaining hook to the fixed base; wherein the tail of the sliding shaft is connected with a button; wherein the first slide way section and second slide way section are connected in the form of a step, and at the connection between the first slide way section and the second slide way section, a channel bottom surface of the second slide way section is lower than a channel bottom section of the first slide way section; the third slide way section and the fourth slide way section are connected in the form of a step, and at the connection between the third slide way section and the fourth side way section, a channel bottom surface of the fourth slide way section is lower than a channel bottom surface of the third slide way section; the second slide way section comprises a down step near the second stop position; the fourth slide way section and the first slide way section are connected in the form of a step, and at the connection between the fourth slide way section and the first slide way section, the channel bottom surface of the first slide way section is lower than that the channel bottom surface of the fourth slide way section; wherein the switch further comprises a circumferential positioning mechanism for the sliding shaft; wherein the circumferential positioning mechanism comprises a positioning slot in an axial direction provided on the sliding shaft and a positioning block provided on the fixed base, whereby the positioning block is fitted with the positioning slot and wherein the retaining hook is connected by hooking to the positioning block on the fixed base.