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.

Abstract: A full flow opening structure of gardening-used figure sprinkling head, including a sprinkling gun connected with a figure sprinkling head, the sprinkling head being composed of a figure water discharging cover and a bottom cap watertightly fused with each other by ultrasonic wave. A conic post formed with thread hole being disposed at a center of interior of the sprinkling gun. An inner periphery of the water discharging cover is formed with multiple radially arranged ribs for connecting with a circular screen plate. A full flow opening is defined between the ribs. The exit of each full flow opening is disposed with an inclined flange. The periphery of the screen plate is disposed with a rearward extending annular partitioning board. The partitioning board and the inner wall of the water discharging cover define therebetween a full flow water passage. An inner portion of the screen plate is disposed with several different annularly arranged figure sprinkling holes and two blind faces.

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 micro-adjustment slope face leaning against and engaging with the supporting slope face of the notch of the trigger.

Abstract: A water amount controlling switch structure of water injection gun, including a gun housing, a controlling pin, a water sealing gasket, a filter screen, a water sealing washer, an adjustment pin, a trigger, a push button and a large and a small springs. The controlling pin is two-stepped. A small diameter section thereof is formed with a conic head at end portion. The step section of the controlling pin is disposed with an annular engaging slope face. The large diameter section of the controlling pin is disposed with four vanes at equal intervals. The adjustment pin is T-shaped, having a water sealing ring inserted with tail end thereof. The tail end is formed with a conic head. The trigger is U-shaped and an upper section of a middle board thereof is disposed with a push button notch. A lower edge of the notch is formed with a supporting slope face. The inner side of the push button is disposed with a projecting hollow fitting post.

Abstract: A water spray gun having an improved sprinkler head structure for use on a garden hose. The sprinkler head has a head body and a sprinkling cap and a bottom plate that are joined together by way of ultrasonic welding art. The sprinkling cap is rotatably mounted onto the head body having a water outlet. The sprinkling cap has a peripherally ring area having a plurality of sprinkling pores and a number of water discharge holes of various geometric shapes. Each water discharge hole of the sprinkling cap has a tubular extension and the tubular extensions are bridged by vertical wall sections and an S-shaped wall section to define a closed area. The bottom plate has a plurality of circular holes ending with protruded flanges that defines a closed area in correspondence to that of the sprinkling cap.

Abstract: An improved sprinkler head for use on a sprinkler gun in connection to garden hose having a sprinkling cap, a bottom board and a base is removably secured to a sprinkler gun. The bottom board having a number of holes defined on the periphery of a circle is secured to the sprinkling cap by ultrasonic welding art. The sprinkling cap has a number of discharge openings defined in correspondence to the holes of the bottom board. The base having a discharge outlet, and the sprinkling cap along with the bottom board are fixed together by a screw. The discharge openings of the sprinkling cap have a tubular extension respectively and the extensions are bridged by a continual wall so as to define a closed area.

Abstract: An improved water regulating cap mounted in combination to a sprinkler gun is provided with a soft guard cover at the front end thereof and a rubber friction cover at the rear end thereof so as to protect the regulating cap from damage in one aspect and to facilitate the operation thereof in another aspect. The soft guard cover and the rubber friction cover can also be integrally formed and removably mounted to the regulating cap readily.