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    • 16. 发明专利
    • APPARATUS FOR THE ATTACHMENT OF A NOZZLE IN A PIPE
    • GB1511306A
    • 1978-05-17
    • GB2371475
    • 1975-05-30
    • LECHLER APPARATEBAU KG
    • B05B15/06B05B15/65F16L37/14F16L55/00
    • 1511306 Nozzles LECHLER APPARATENBAU KG 30 May 1975 [1 Aug 1974] 23714/75 Heading B2F [Also in Division F2] A joint suitable for the interchangeable attachment of nozzle heads is characterised in that a nozzle 14 is receivable within a pipe end 12 and two diametrically opposed transverse grooves 15, 16 in the nozzle periphery are alignable with two transverse slots 17, 18 to define transverse channels wherein limbs 19, 20 of a U-shaped locking member are receivable to effect axial locking of the nozzle. An O-ring seal 29 may be housed within the inner pipe wall to effect fluid tight sealing, and the nozzle preferably includes a shoulder portion 30 abutting the pipe end face 22 to define the correct insertion depth of the nozzle. An alternative embodiment differs in that the nozzle is received into a sleeve member in which the pipe end is fixed and the nozzle is locked relative to the sleeve by the method described; insertion of the nozzle in this case being limited by abutment of confronting end faces of the pipe end and nozzle. The nozzle grooves may be of semi-circular or rectangular section, and an outwardly projecting portion of the nozzle is preferably provided with a grippable e.g. corrugated surface 28. The nozzle may provide a fan-shaped, conical, or swirling discharge.