JPH0158050U - - Google Patents

Description

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

第１図はこの考案の液閉鎖弁の一実施例を示す
縦断面図、第２図は上記液閉鎖弁の使用される冷
媒回路図、第３図は従来の液閉鎖弁の要部縦断面
図である。 ６……室外側液管（配管）、７……液閉鎖弁、
２１……弁本体、２２……第１配管接続ポート、
２３……第２配管接続ポート、２４……弁作動室
、２８……第１流路、２９……第２流路、３０…
…弁座、３１……弁体、３５……減圧用毛細管路
、３６……径大路（大断面路）、３７……段部（
当接部）。 Fig. 1 is a vertical cross-sectional view showing an embodiment of the liquid shut-off valve of this invention, Fig. 2 is a refrigerant circuit diagram in which the liquid shut-off valve is used, and Fig. 3 is a longitudinal cross-section of main parts of a conventional liquid shut-off valve. It is a diagram. 6...Outdoor liquid pipe (piping), 7...Liquid shutoff valve,
21... Valve body, 22... First piping connection port,
23...Second piping connection port, 24...Valve operation chamber, 28...First flow path, 29...Second flow path, 30...
... Valve seat, 31 ... Valve body, 35 ... Capillary passage for pressure reduction, 36 ... Large diameter path (large cross-section path), 37 ... Step part (
contact part).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 弁本体２１に、第１配管接続ポート２２と、第
２配管接続ポート２３と、弁作動室２４とを設け
ると共に、上記第１及び第２配管接続ポート２２
，２３をそれぞれ上記弁作動室２４に連通する第
１及び第２流路２８，２９を設け、さらに上記第
１配管接続ポート２２から第２配管接続ポート２
３へと至る流路内に弁座３０を設けると共に、上
記弁作動室２４には、上記弁座３０に対して当接
・離反自在に弁体３１を配設し、この弁体３１を
上記弁座３０に対して当接・離反することによつ
て上記第１配管接続ポート２２と第２配管接続ポ
ート２３との連通、閉鎖状態の切換えを行う液閉
鎖弁であつて、上記第１及び第２流路２８，２９
の少なくとも一方を、上記弁作動室２４側から順
に、減圧用毛細管路３５と、この減圧用毛細管路
３５よりも横断面積の大なる大断面路３６とで構
成すると共に、この大断面路３６と配管接続ポー
ト２２との間には、この配管接続ポート２２に配
管６の一端側を嵌入した際に、この配管６の一端
部が当接する当接部３７を設けたことを特徴とす
る液閉鎖弁。 The valve body 21 is provided with a first piping connection port 22, a second piping connection port 23, and a valve operating chamber 24, and the first and second piping connection ports 22 are provided with a valve operating chamber 24.
, 23 are provided to communicate with the valve operating chamber 24, respectively.
A valve seat 30 is provided in the flow path leading to the valve seat 3, and a valve body 31 is disposed in the valve operating chamber 24 so as to be able to come into contact with and separate from the valve seat 30. A liquid-closing valve that switches between communication and a closed state between the first piping connection port 22 and the second piping connection port 23 by contacting and separating from the valve seat 30, Second flow path 28, 29
At least one of the above is constituted, in order from the valve operating chamber 24 side, by a pressure reducing capillary channel 35 and a large cross section channel 36 having a larger cross-sectional area than the pressure reducing capillary channel 35. A liquid closure characterized in that a contact portion 37 is provided between the piping connection port 22 and the one end of the piping 6 comes into contact when the one end side of the piping 6 is fitted into the piping connection port 22. valve.