Abstract: A nozzle assembly comprises an intake section, an inner ring section, a discharging section, an intake screw rod, and two blocking caps. The intake section, the inner ring section and the discharging section are joined to each other to be turned with respect to the intake screw rod and secured to the first position to admit large air flow passing through, and to the second position 180 degrees apart from the first position to perform suction with discharge. One of the blocking caps covers the flow hole of the intake section and another blocking cap covers the discharge bore of the discharging section and is provided with a spray pipe to perform high pressure blowing.

Abstract: A spray head structure slidably assembled with a nut comprises a spray head, an air pipe, and a fixing nut. The fixing nut of the spray head may adjustably fix to the air pipe by screwing in and out. When fixing, one end of the outer threading section may be abutted against the washer to be deformed. The deformed washer may laterally press the air pipe so as to make the spray head fix to the air pipe. It may achieve that the liquid may be sucked normally and sprayed in normal high pressure.

Abstract: A nozzle assembly comprises an intake section, an inner ring section, a discharging section, an intake screw rod, and two blocking caps. The intake section, the inner ring section and the discharging section are joined to each other to be turned with respect to the intake screw rod and secured to the first position to admit large air flow passing through, and to the second position 180 degrees apart from the first position to perform suction with discharge. One of the blocking caps covers the flow hole of the intake section and another blocking cap covers the discharge bore of the discharging section and is provided with a spray pipe to perform high pressure blowing.

Abstract: A universal connector has a screw thread section and a cone section. The screw thread section connects with an output pipe or a recycling pipe of a cleaning device of an air conditioning system in a car. The cone section provides a plurality of flanges at the outer sides thereof and connects with a connection member of the air conditioning system. The screw thread section connects with a C shaped strap plate, which has a C shaped groove, is passed through a screw and the C shaped strap plate perpendicularly engaging with the screw by way of two nuts such that the connector is co-axial with a fitting hole in the connection member and move rectilinearly along a direction in parallel with the screw, which is fixed to the connection member.