The invention discloses a pressure relief protection device of a nozzle. The pressure relief protection device comprises a gun barrel, the nozzle which is fixed to the outlet end of the gun barrel anda pressure relief device which is arranged on the gun barrel, the pressure relief device comprises a base body, an axially-through connecting hole, a pressure relief hole with an opening in one sidesand a water through hole which communicates with the connecting hole and the pressure relief hole are formed in the base body, the gun barrel is sleeved with the connecting hole in an inserted mode,a water outlet hole aligned with the water through hole is formed in the gun barrel, a machine body is clamped between a first clamping block and a second clamping block, and the first clamping blockand the second clamping block sleeve the gun barrel in an inserted mode and fixed to the gun barrel, a conical surface is formed on the inner wall of the inner end of the pressure relief hole, a spring supporting frame is fixedly arranged in the pressure relief hole, the spring supporting frame is connected with a hemispheroid through a pressure spring, the outer wall of the hemispheroid is sleeved with a rubber outer wall, and the rubber outer wall abuts against the conical surface in a pressed mode. By means of the pressure relief protection device of the nozzle, overlarge water pressure sprayed by the nozzle can be effectively prevented, and therefore damage to the surface of an automobile in the cleaning process is effectively avoided.

    本发明公开了一种喷嘴的泄压保护装置,包括枪杆、固定在枪杆的出口端的喷嘴和设置在枪杆上的泄压装置,所述泄压装置包括基体,基体上成型有轴向贯穿的连接孔、一侧开口的泄压孔及连通连接孔与泄压孔的通水孔;所述连接孔插套在枪杆上,枪杆上成型有与通水孔相对齐的出水孔;所述机体夹持在第一夹块和第二夹块之间,第一夹块和第二夹块插套并固定在枪杆上;所述泄压孔的内端内壁上成型有圆锥面,泄压孔内固定有弹簧支撑架,弹簧支撑架通过压簧连接有半球体,半球体的外壁上套接有橡胶外壁,橡胶外壁压靠在圆锥面上。本发明通过泄压装置可有效防止喷嘴喷射出的水压过大,从而有效避免在清洗过程中对汽车表面的损伤。


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    Titel :

    Pressure relief protection device of nozzle


    Weitere Titelangaben:

    一种喷嘴的泄压保护装置


    Beteiligte:
    NI ZHIGANG (Autor:in)

    Erscheinungsdatum :

    2020-12-18


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B05B Sprühvorrichtungen , SPRAYING APPARATUS / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen



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