A cleaning apparatus has a hollow input shaft connectable to a hydraulic pressure source, is received in a first housing part and has a fluid conduit, with at least one lateral or axial input and at least one lateral output. At least one hollow output shaft is fluidically coupled to the hollow input shaft, received in a second housing part, and has a fluid channel, with at least one lateral input and at least one lateral or axial output. The hollow input shaft and/or the hollow output shaft is/are mounted rotatably about the longitudinal axis thereof relative to the relevant housing part. A first chamber is at least between the input or output of the hollow input shaft or the input of the at least one hollow output shaft and an interior lateral surface of a sealing sleeve. The sealing sleeve is fixed in a stationary and non-rotatable manner on the relevant housing part and arranged surrounding a portion of the hollow input or output shaft. Regions of the interior lateral surface of the sealing sleeve extending axially from the first chamber form a gap seal with the exterior lateral surface of the hollow input or output shaft.

The present disclosure relates to a fluid discharging assembly. The fluid discharging assembly includes a rotatable driving mechanism having at least two rotating eccentric shafts oppositely disposed about a center axis of the driving mechanism. The fluid discharging assembly includes a first slider having a first shaft hole coupled to a first of the at least two eccentric shafts and a second slider having a second shaft hole coupled to a second of the at least two eccentric shafts. The first slider includes a first through hole that receives a first fluid discharging pipe and the second slider includes a second through hole that receives a second fluid discharging pipe. The first fluid discharging pipe rotates at a first rotation by a rotation of the first slider and the second fluid discharging pipe rotates at a second rotation by a rotation of the second slider.

A spray arm assembly and a washing appliance provided with same. The spray arm assembly comprises an upper spray arm and a lower spray arm, the upper spray arm being connected to the lower spray arm and being located above the lower spray arm; and further comprises a first ball assembly, and the first ball assembly is arranged at a position where the upper spray arm is connected to and cooperates with the lower spray arm; and the upper spray arm is rotatable relative to the lower spray arm. The hydrodynamic loss caused by using a connection method in a sliding friction manner in the prior art is reduced by means of the first ball assembly, and the smoothness during rotation of the upper and lower spray arms can be improved, and the noise can also be reduced.

The present invention provides a technique in which service life of a coolant application device can be extended. The coolant application device includes a nozzle body which spouts coolant, a hollow shaft which rotates the nozzle body, a motor which controls a rotation angle of the hollow shaft, and an Oldham coupling portion which connects the hollow shaft and an output shaft of the motor, the Oldham coupling portion transmits driving force of the motor to the hollow shaft, allowing a misalignment between an axis of the hollow shaft and an axis of the output shaft.

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 showerhead assembly is provided having a primary showerhead which is relatively traditional in construction and includes a hollow housing and a plurality of spray nozzles. In addition, the showerhead assembly includes an orbiting showerhead which rotates about the primary showerhead's central axis. The primary showerhead is connected to a water source by a neck portion having a female threaded inlet. Meanwhile, the orbiting showerhead is rotatably connected to the neck portion by a collar and elbow conduit. Preferably, the orbiting showerhead can tilt inwardly and outwardly with respect to the elbow conduit thereby allowing the spray from the orbiting showerhead to tilt inward or outward relative to the spray from the primary showerhead.

Parameters for a plurality of motors that move a nozzle on a three-dimensional movement locus are set easily. A washing device 1 includes display device 7, and a worker touches an input unit 7A of the display device 7 with a finger, to thereby set parameters for both servo motors that move a nozzle 3 on a three-dimensional movement locus. Specifically, a three-dimensional model Md1 of a tank 2 to be washed is displayed on the input unit 7A, and next, the worker drags specific spots of the three-dimensional model Md1, sequentially, and selects washing methods and washing time periods of the spots. The selected contents are transmitted to a control device 6, are computed by a computing unit 6A of the control device 6, so that the parameters for both servo motors for operating the nozzle 3 in three dimensions are set in washing.

A method for operating a hand-held spray device, wherein in a first step a target orientation of the spray nozzle relative to the operator control unit is defined, and wherein during operation a rotation of the spray device, brought about by manual movement of the spray, through a z swinging angle, about a z axis which is orthogonal with respect to the longitudinal axis and/or through a y swinging angle about a y axis which is orthogonal with respect to the longitudinal axis and orthogonal with respect to the z axis, by a single sensor and wherein the z swinging angle and/or the y swinging angle engage as interference variables in a closed-loop control circuit and make available closed-loop control variables in such a way that the spray nozzle retains its target orientation by means of closed-loop control of the swinging mechanism.

A nozzle head (1) for discharging a suspension which is under pressure and which includes a fluid and abrasive agent, with at least one nozzle (8) including at least one exit opening (20) for the exit of the suspension. The nozzle head (1) includes at least one first drive device (17′), by way of which the nozzle head can be rotated about a first axis (A1).