The telescopic cleaning nozzle comprises a shell, a spraying core is movably arranged in the shell, a water inlet hole and a spraying hole which are communicated are formed in the positions, close to the two ends, of the spraying core correspondingly, a first sealing ring and a second sealing ring are arranged on the positions, on the two sides of the water inlet hole, of the spraying core correspondingly and are in sliding sealing fit with the inner wall of the shell, and a water passing groove is formed in the inner wall of the shell; when the first sealing ring moves to the position between the two side walls, in the length direction of the shell, of the water passing groove along with the spraying core, the telescopic end and the spraying hole in the telescopic end stretch out of the shell, and flushing water bypasses the first sealing ring through the water passing groove, enters a water inlet hole between the first sealing ring and the second sealing ring and is finally sprayed out from the spraying hole. Only when the spray core extends out of the shell and the spray hole reaches a proper position, the flushing water is sprayed out through the spray hole, so that the pressure loss caused by the fact that the flushing water pushes the spray core to extend out is reduced, the pressure requirement for the flushing water is reduced, the water consumption of each time of flushing is reduced, and the practicability of the telescopic cleaning nozzle is improved.

    本发明公开了一种伸缩清洗喷嘴,包括壳体,壳体内活动设有喷芯,喷芯上靠近两端分别设有连通的进水孔和喷射孔,喷芯上于进水孔两侧分别设有第一密封圈和第二密封圈并与壳体内壁滑动密封配合,壳体内壁上开设有过水槽;当第一密封圈随喷芯移动至过水槽在壳体长度方向上的两侧壁之间时,伸缩端以及其上的喷射孔伸出至壳体外,冲洗水通过过水槽绕过第一密封圈进入第一密封圈和第二密封圈之间的进水孔,最后从喷射孔喷出。仅在喷芯伸出壳体外且喷射孔达到合适位置时,冲洗水才经喷射孔喷出,不仅有利于降低冲洗水推动喷芯伸出的压力损失,降低对冲洗水的压力要求,且有利于降低每次冲洗的耗水量,有利于提高伸缩清洗喷嘴的实用性。


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    Title :

    Telescopic cleaning nozzle


    Additional title:

    一种伸缩清洗喷嘴


    Contributors:
    HUANG WANZHI (author) / LI HANLIANG (author) / YANG CHAOFU (author) / YANG YONG (author)

    Publication date :

    2024-01-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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