A fire-fighting water monitor head that adopts hydraulic drive for direct-current spray conversion
A technology of hydraulic drive and water cannon, which is applied in the direction of fire rescue, etc., can solve the problems that the conversion mechanism has a small scope of application, can only be used for hydraulic-controlled fire cannons, and jamming, etc., and achieves the elimination of complex mechanisms and large volumes. Effect
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[0011] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0012] as attached figure 1 As shown, the present invention includes nozzle core 1, sealing ring IV2, sealing ring I4, sealing ring II10, sealing ring III12, nozzle 3, pipe joint I5, water delivery hose I6, nozzle core frame 7, cylinder body 8, left water Pressure chamber 9, pipe joint II11, right water pressure chamber 13, fastening bolt 14, three-position four-way pure water electromagnetic reversing valve 15, seal ring V16, seal ring VI19, water hose II17, pipe joint III18, pipe Connector IV20, counterbore screw 21, nozzle housing 22.
[0013] The nozzle core 1 is fixed on the nozzle core frame 7 by a washer and a lock nut; the inner wall of the nozzle 3 forms a clearance fit with the outer wall of the nozzle housing 22, and the outer wall of the nozzle 3 forms a clearance fit with the inner wall of the cylinder body 8, and the nozzle 3 can Slide back an...
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