A low-flow emitter includes a rotatable cap and a body. The rotatable cap has a threaded hole and a receiving chamber communicating with the threaded hole. The wall of the receiving chamber has plural grooves, which are annularly arranged in a spaced manner around the threaded hole. The body has a shaft. The shaft has an external thread and a flexible rib adjacent to the external thread and is connected to the rotatable cap by threaded connection between the external thread and the threaded hole such that the flexible rib is engaged in one of the grooves. When the rotatable cap is rotated to adjust the amount of water delivered by the low-flow emitter, the area of contact between the grooves of the rotatable cap and the flexible rib of the body stays unchanged, allowing the rotatable cap to produce a consistent feel to the operator.

A spray device includes a controller, a mobile device, a spray tank, a multi-angle spray pipe structure and a nozzle. The controller is arranged on the mobile device and controls the movement of the mobile device. The spray tank includes a liquid reservoir. The multi-angle spray pipe structure is arranged on the spray tank and is communicated with the liquid reservoir. The nozzle is arranged on the multi-angle spray pipe structure. An inlet end plane is formed at an edge of an inlet end of the multi-angle spray pipe structure, an outlet end plane is formed at an edge of an outlet end of the multi-angle spray pipe structure, and the inlet end plane and the outlet end plane intersect to form an included angle.

A spray nozzle chip is presented having: a first layer provided with a first layer orifice, a mechanically flexible nozzle layer provided with a nozzle orifice, the spray nozzle chip having a valve functionality obtained by movement of the nozzle layer relative to the first layer due to pressure changes, wherein the nozzle orifice is closed when the nozzle layer is in a default non-pressurised state and wherein the nozzle orifice is opened and set in fluid communication with the first layer orifice when the nozzle layer is deformed due to pressure during a spraying operation, and wherein the spray nozzle chip further has a sealing layer configured to rupture when the nozzle layer is deformed due to applied pressure during a spraying operation.

A sprinkler with adjustable fan angle of water sprayed is revealed. The adjustable fan angle of water sprayed means a fan area of the water sprayed is adjusted and changed. The sprinkler includes a housing, a receiving seat and a sprinkler head. The sprinkler head consists of a base seat, a collar member and an adjustment member. The fan angle of the water sprayed can be manually operated and changed by rotating the adjustment member.

A water injector assembly includes an injector body having a substantially hollow interior. The injector body defines an inlet opening defined within an outer radial surface of the injector body at a first axial location along the injector body. The injector body defines a flowpath opening in fluid communication with the inlet opening such that the flowpath opening is configured to receive the fluid from the inlet opening. The injector body defines an outlet opening defined within the injector body at a second axial location along the injector body. The outlet opening is in fluid communication with the flowpath opening, such that the outlet opening receives the fluid from the flowpath opening. The second axial location of the outlet opening is different than the first axial location of the inlet opening.

A water injector assembly includes an injector body having a substantially hollow interior. The injector body defines an inlet opening defined within an outer radial surface of the injector body at a first axial location along the injector body. The injector body defines a flowpath opening in fluid communication with the inlet opening such that the flowpath opening is configured to receive the fluid from the inlet opening. The injector body defines an outlet opening defined within the injector body at a second axial location along the injector body. The outlet opening is in fluid communication with the flowpath opening, such that the outlet opening receives the fluid from the flowpath opening. The second axial location of the outlet opening is different than the first axial location of the inlet opening.

A water spray gun may comprise a main body, a water outlet unit, a spray head and a knob. The main body has a handle and a barrel portion, and interior spaces of the handle and the barrel portion are communicated with each other. A rear end and a front end of the water outlet unit respectively comprise a first connecting portion and a second connecting portion. The spray head is integrally made of plastic material, which simplifies the manufacturing process and lowers the cost, and through communicating the first through hole with the second through holes, the water flow is configured to flow in a straight line thus maintaining the momentum and speed of the water flow to perform different spraying patterns efficiently and to save labors and water.

A drip emitter for subsurface irrigation includes a valve chamber defining a hollow interior, an entry port and at least one exit port. A flexible diaphragm is mounted in the hollow interior of the valve chamber for movement in response to pressurized water being supplied to the hollow interior through the entry port. The drip emitter further includes a tortuous path water flow channel that limits the flow of water from the hollow interior of the valve chamber to the at least one exit port. A closure member is moved by the flexible diaphragm to open the at least one exit port when pressurized water enters the hollow interior to allow water to be discharged through the at least one exit port. A spring moves the closure member to close the at least one exit port when the supply of pressurized water is shut OFF.

A housing selectively encloses a nozzle. The housing has a body that partially defines an interior space in which the nozzle is configured to be disposed. The housing also includes a cover assembly that selectively blocks a first aperture of the body and further defines the interior space. Additionally, the housing has a piston that is disposed in the interior space and secured to the nozzle. The piston defines a gas inlet, a liquid inlet, and an outlet fluidly connected to both the gas inlet and the liquid inlet. The housing further includes a biasing member attached to the piston. The biasing member is configured to exert a biasing force that biases the nozzle to a retracted position. The biasing member is further configured such that when pressurized gas flows through the body, the biasing force is overcome such that the nozzle is disposed in an extended position.

An apparatus for a fluidic ejection device and a fluidic ejection device containing the apparatus. The apparatus includes a pivot member having at least a first position and a second position, a shaft attached on a first end thereof to the pivot member and on a second end distal from the first end to a capping structure, wherein pivot of the pivot member pivots the capping structure from a first capped position to a second uncapped position adjacent an ejection head of the fluidic ejection device.