JPS6431155U - - Google Patents

Description

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

第１図は本考案に係る緊急用貯水設備における
管路の開閉装置の平面図、第２図はバタフライ弁
の一例を示す正面図、第３図は自動閉鎖機構と制
動機構の側面図、第４図は３本の弁軸の連絡状態
を示す平面図、第５図はウオームとウオーム歯車
、及びキー溝とキーの関係を示す断面図、第６図
はウオーム歯車の回動状態を示す平面図、第７図
は他の実施例を示す平面図、第８図は本管に設け
られたバタフライ弁と操作装置等の関係を示す正
面図、第９図は弁軸と回転軸の関係を示す平面図
である。 １０……本管、１１，１２……配水管、１３，
１４，１５……バタフライ弁、１７Ａ，１７Ｂ，
１７Ｃ……弁箱、１８Ａ，１８Ｂ，１８Ｃ……弁
体、１９Ａ，１９Ｂ，１９Ｃ……弁軸、２５……
操作装置。 Fig. 1 is a plan view of a conduit opening/closing device in an emergency water storage facility according to the present invention, Fig. 2 is a front view showing an example of a butterfly valve, Fig. 3 is a side view of an automatic closing mechanism and a braking mechanism, and Fig. 3 is a side view of an automatic closing mechanism and a braking mechanism. Figure 4 is a plan view showing the connection state of the three valve shafts, Figure 5 is a sectional view showing the relationship between the worm and the worm gear, and the keyway and the key, and Figure 6 is a plane view showing the rotational state of the worm gear. 7 is a plan view showing another embodiment, FIG. 8 is a front view showing the relationship between the butterfly valve provided in the main pipe and the operating device, etc., and FIG. 9 is a plan view showing the relationship between the valve shaft and the rotating shaft. FIG. 10... Main pipe, 11, 12... Water pipe, 13,
14, 15...Butterfly valve, 17A, 17B,
17C... Valve box, 18A, 18B, 18C... Valve body, 19A, 19B, 19C... Valve stem, 25...
Operating device.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 弁箱内に弁体を弁軸により開閉自在に枢支した
バタフライ弁が、本管から分岐された第１分配管
と第２分配管、及び上記本管の第１分配管と第２
分配管との間にそれぞれ個々に設けられ、上記第
１分配管に設けられた第１バタフライ弁と第２分
配管に設けられた第２バタフライ弁、及び本管に
設けられた第３バタフライ弁の弁軸に、第１バタ
フライ弁と第２バタフライ弁が開くとき第３バタ
フライ弁を閉じ、また第１バタフライ弁と第２バ
タフライ弁が閉じるとき第３バタフライ弁を開か
せる１台の操作装置が連設されたことを特徴とす
る緊急用貯水設備における管路の開閉装置。 A butterfly valve, in which a valve body is pivoted in a valve box so that it can be opened and closed by a valve shaft, connects a first branch pipe and a second branch pipe branched from the main pipe, and a first branch pipe and a second branch pipe of the main pipe.
A first butterfly valve provided in the first distribution pipe, a second butterfly valve provided in the second distribution pipe, and a third butterfly valve provided in the main pipe, each individually provided between the distribution pipes. An operating device is disposed on the valve stem for closing the third butterfly valve when the first butterfly valve and the second butterfly valve are opened, and for opening the third butterfly valve when the first butterfly valve and the second butterfly valve are closed. A pipe opening/closing device in an emergency water storage facility, characterized in that the pipes are connected in series.