Importance

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Abstract

A water amount controlling switch structure of water injection gun, including a gun housing, a controlling pin, a water sealing gasket, a locating ring, an adjustment pin, a trigger, a push button, a pad member, a water sealing ring and three springs. The trigger is U-shaped and pivotally connected with an opening of a chamber of the gun housing. A lower portion of inner side of a middle board of the trigger is disposed with a projecting conic head pushing post. An upper section of the middle board is disposed with a push button notch. A lower edge of the notch is formed with a supporting slope face. The push button is received in the notch. An upper section of inner side of the push button is disposed with a hollow fitting post. A bottom edge of the push button is formed with a zig-zag micro-adjustment slope face leaning against and engaging with the supporting slope face of the notch of the trigger. An end of the zig-zag micro-adjustment slope face of the Push button is disposed with a short horizontal section and a vertical engaging edge connected with the horizontal section. By means of the engagement between the supporting slope face of the trigger and the zig-zag micro-adjustment slope face of the push button, the trigger can be freely pressed inward and located to micro-adjust the water amount.

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First Claim