JPS6347008U

JPS6347008U -

Info

Publication number: JPS6347008U
Application number: JP13914186U
Authority: JP
Priority date: 1986-09-10
Filing date: 1986-09-10
Publication date: 1988-03-30

Description

[Brief explanation of drawings]

第１図は本考案実施例の圧力水噴射ノズルを示
す断面説明図、第２図は同底面図、第３図は第１
図―線による断面図、第４図は第１図―
線による断面図、第５図は第１図―線による
断面図、第６図は第１図―線による断面図、
第７図は要部の分解斜視図、第８図はホルダーの
拡大断面図、第９図はノズル本体の拡大断面図、
第１０図はピストン弁部分の拡大断面図、第１１
図はノズルヘツド部分の拡大断面図、第１２図は
使用状態の説明図、第１３図は従来のスケール除
去装置を示す説明図である。２……ノズル本体、３……ピストン弁、４……
バネ材、７……取り付け手段、８……流入口、２
４……シリンダ穴、２７……ノズルヘツド部分、
２７ａ……弁口、２７ｂ……バルブシート、３０
……ポペツト部、３０ａ……弁部、３１……ピス
トン部、３２……受圧面、６２……噴射口。 Fig. 1 is an explanatory cross-sectional view showing the pressure water injection nozzle according to the embodiment of the present invention, Fig. 2 is a bottom view of the same, and Fig. 3 is the first
Figure - Cross-sectional view by line, Figure 4 is Figure 1 -
5 is a sectional view taken along lines from FIG. 1, FIG. 6 is a sectional view taken along lines taken from FIG. 1,
Fig. 7 is an exploded perspective view of the main parts, Fig. 8 is an enlarged sectional view of the holder, Fig. 9 is an enlarged sectional view of the nozzle body,
Figure 10 is an enlarged sectional view of the piston valve part, Figure 11 is an enlarged sectional view of the piston valve part;
The figure is an enlarged sectional view of the nozzle head portion, FIG. 12 is an explanatory view of the state of use, and FIG. 13 is an explanatory view of a conventional scale removing device. 2... Nozzle body, 3... Piston valve, 4...
Spring material, 7... Attachment means, 8... Inflow port, 2
4...Cylinder hole, 27...Nozzle head part,
27a...Valve port, 27b...Valve seat, 30
...Poppet part, 30a... Valve part, 31... Piston part, 32... Pressure receiving surface, 62... Injection port.

Claims

[Claims for Utility Model Registration] A cylinder hole is formed in the flow path from the inlet to the injection port, the inner bottom side of which communicates with the atmosphere, and a valve that communicates with the injection port is provided on the downstream side where the cylinder hole opens. a nozzle body forming a valve seat with a mouth; a piston valve having a poppet portion formed on the downstream side and a piston portion slidably fitted into the cylinder hole on the upstream side; and the piston valve. a spring member that closes the flow path by constantly pressing the valve portion of the valve in the direction of pressure contact with the valve seat, and a pressure that is supplied to the flow path between the piston portion and the poppet portion; A pressure water injection nozzle formed with a pressure receiving surface that operates a piston valve in a direction to open a flow path against the pressing force of the spring material in response to water pressure, the nozzle head portion forming the injection port. 1. A pressure water injection nozzle, characterized in that the nozzle head portion is formed separately from the nozzle body portion, and is provided with attachment means for detachably attaching the nozzle head portion to the nozzle body portion.