JPH03118377U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案による開閉弁の側面図、第２図
は第１図−線による断面図、第３図は第２図
−線による断面図、第４図は第５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４図−線による断面図、第
７図は弁体付勢力の特性を示すグラフ、第８図は
開閉弁の使用状態説明図、第９図は電磁弁の構成
を示す縦断面図、第１０図はウオーターハンマー
防止装置部の作用説明模式図。 Ａ……開閉弁、Ｂ……ウオーターハンマー防止
装置部、Ｃ……開閉弁部、ａ……弁体付勢手段、
１１……弁体、１２……一次側流路、１３……連
絡流路、１４……二次側流路、５１……電磁弁。 Fig. 1 is a side view of the on-off valve according to the present invention, Fig. 2 is a sectional view taken along the line of Fig. 1, Fig. 3 is a sectional view taken along the line of Fig. 2, and Fig. 4 is a sectional view taken along the line of Fig. 5. Figure 5 is a sectional view taken along the line in Figure 1, Figure 6 is a sectional view taken along the line in Figure 4, Figure 7 is a graph showing the characteristics of the valve biasing force, and Figure 8 is the use of the on-off valve. FIG. 9 is a longitudinal sectional view showing the configuration of the electromagnetic valve, and FIG. 10 is a schematic diagram illustrating the operation of the water hammer prevention device. A... Opening/closing valve, B... Water hammer prevention device section, C... Opening/closing valve section, a... Valve body biasing means,
DESCRIPTION OF SYMBOLS 11... Valve body, 12... Primary side flow path, 13... Connection flow path, 14... Secondary side flow path, 51... Solenoid valve.

Claims (1)

【実用新案登録請求の範囲】 １ 蛇口ｊ等の上流側に設けて流路を開閉する開
閉弁Ａにおいて、 同開閉弁Ａを開閉弁部Ｃとウオーターハンマー
防止装置部Ｂとで構成し、かつウオーターハンマ
ー防止装置部Ｂを、一次側流路１２と二次側流路
１４とを連通する連絡流路１３と、進退移動によ
つて連絡流路１３を開閉する弁体１１と、弁体１
１を開弁方向に付勢し、一次側及び二次側流路１
２，１４の圧力により弁体１１を進退作動させて
連絡流路１３の開口面積を調整して吐出量を調整
する弁体付勢手段ａとから形成し、ウオーターハ
ンマー現象が発生したときに、弁体１１の閉方向
への移動に連動して二次側流路１４の容積を増加
させることを特徴とするウオーターハンマー防止
機能を有する開閉弁。 ２ 二次側流路１４に電磁弁５１を接続したこと
を特徴とする請求項１記載のウオーターハンマー
防止機能を有する開閉弁。[Scope of Claim for Utility Model Registration] 1. An on-off valve A that is installed on the upstream side of a faucet j, etc. to open and close a flow path, and the on-off valve A is composed of an on-off valve part C and a water hammer prevention device part B, and The water hammer prevention device part B includes a communication passage 13 that communicates the primary side passage 12 and the secondary side passage 14, a valve body 11 that opens and closes the communication passage 13 by moving forward and backward, and the valve body 1.
1 in the valve opening direction, and the primary and secondary flow paths 1
and a valve element biasing means a which moves the valve element 11 forward and backward with the pressures of 2 and 14 to adjust the opening area of the communication passage 13 and adjust the discharge amount, and when the water hammer phenomenon occurs, An on-off valve having a water hammer prevention function characterized in that the volume of a secondary flow path 14 is increased in conjunction with the movement of a valve body 11 in the closing direction. 2. The on-off valve having a water hammer prevention function according to claim 1, wherein a solenoid valve 51 is connected to the secondary flow path 14.