| 摘要 |
FIELD: liquid spraying devices. SUBSTANCE: housing of device is made in form of tubular element; nozzle is made in form of hollow cap fitted on housing; cap has hole in bottom and is coaxial with inner cavity; it is made in form of truncated cone whose larger base is directed towards outer surface of cap and core fitted on side of end surface of housing is centered in inner cavity of cap; its multi-start helical bore on outer cylindrical surface is communicated with inner chamber of housing. length of cylindrical portion of core with helical grooves provided on it does not exceed half length of pitch of helical grooves. Core is fixed in housing by means of pin received by radial through hole provided in housing and in core; pin is fitted in hole of core at radial clearance and may be sunken in circular groove provided on outer surface of housing; rubber ring laid in this groove keeps the pin in place in the course of assembly of device. Connection of cap and housing is effected by means of spring-loaded expanding ring located in cavity formed by circular groove on outer surface of housing and circular slot in inner cavity of cap. EFFECT: improved quality of cone of sprayed working liquid due to high accuracy of alignment of two main members of device: core used for swirling the flow of working liquid and nozzle used for forming the spraying cone; reduced losses of energy of swirled flow; increased area of watering. 5 cl, 1 dwg |
