JPS6330719Y2 - - Google Patents
Info
- Publication number
- JPS6330719Y2 JPS6330719Y2 JP9060083U JP9060083U JPS6330719Y2 JP S6330719 Y2 JPS6330719 Y2 JP S6330719Y2 JP 9060083 U JP9060083 U JP 9060083U JP 9060083 U JP9060083 U JP 9060083U JP S6330719 Y2 JPS6330719 Y2 JP S6330719Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- valve
- main valve
- liquid
- liquid supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000007788 liquid Substances 0.000 claims description 83
- 230000000694 effects Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 description 11
- 239000012528 membrane Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000008439 repair process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Description
【考案の詳細な説明】
本考案はタンクローリ車等に所定量の油液をオ
ーバーフローすることなく給液しうる給液停止装
置に関する。[Detailed Description of the Invention] The present invention relates to a liquid supply stop device that can supply a predetermined amount of oil to a tank truck or the like without overflowing.
一般に、タンクローリ車等に所定量の油液を出
荷する給液出荷装置は第1図に示す構成である。
給液出荷装置1では、タンク2内に油液3を配管
4のポンプ5、空気分離器6、流量計7、定量弁
8を順次介して給送し、更に立上り配管部4a、
回動自在のローデイングアーム9、給液停止装置
10、ドロツプパイプ11を介してタンクローリ
車12のハツチ13内に供給する。この際にはタ
ンクローリ車12の入場の都度ローデイングアー
ム9を操作してドロツプパイプ11をハツチ13
内に移し変え挿入して油液を供給するのである。
そして通常時は定量弁8が所定量給液時に閉弁し
て給液を終了するが、定量弁8が故障したとき等
の非常時には油面が更に上昇し、液面検知パイプ
14が上限の油面を検知したとき給液停止装置1
0が閉弁状態となり、ハツチ13から油液がオー
バーフローするのを防止している。 Generally, a liquid supply and shipping device for shipping a predetermined amount of oil to a tank truck or the like has a configuration shown in FIG.
In the liquid supply and shipping device 1, the oil liquid 3 is fed into the tank 2 through the pump 5 of the piping 4, the air separator 6, the flow meter 7, and the metering valve 8 in order, and further the rising piping section 4a,
The liquid is supplied into the hatch 13 of the tank truck 12 via the rotatable loading arm 9, the liquid supply stop device 10, and the drop pipe 11. At this time, each time the tank truck 12 enters, the loading arm 9 is operated to connect the drop pipe 11 to the hatch 13.
The oil is then transferred and inserted inside to supply the oil.
Under normal conditions, the metering valve 8 closes when a predetermined amount of liquid has been supplied to end the liquid supply, but in an emergency such as when the metering valve 8 breaks down, the oil level rises further and the liquid level detection pipe 14 reaches the upper limit. Liquid supply stop device 1 when oil level is detected
0 is in a closed state to prevent oil from overflowing from the hatch 13.
上記の如く、液面を検知して閉弁状態となる給
液停止装置としては、例えば実願昭57−115423号
「給液停止装置」がある。この装置では手動によ
り弁体の開閉作動が行えると共に、給液時、開弁
状態に係止された弁体を液面上限位置を検出して
弁体の係止を解除し、ばねの付勢力に基づき弁体
を閉弁状態とするようになつている。 As mentioned above, an example of a liquid supply stop device that detects the liquid level and closes the valve is ``Liquid Supply Stop Device'' published in Japanese Utility Model Application No. 57-115423. With this device, the valve body can be opened and closed manually, and when liquid is supplied, the valve body that is locked in the open state is released by detecting the liquid level upper limit position, and the spring biasing force is released. Based on this, the valve body is closed.
ところで、上記装置においては、液面上限位置
を検出して閉弁する場合、弁体はばねの付勢力に
より急激に閉じることになるが、給液は続けられ
ているため、いわゆるウオータハンマー現象が生
じ、配管系統の損傷を生じるおそれがあつた。 By the way, in the above device, when the upper limit position of the liquid level is detected and the valve is closed, the valve body closes rapidly due to the biasing force of the spring, but since the liquid supply continues, the so-called water hammer phenomenon does not occur. There was a risk of damage to the piping system.
本考案は、主弁体の下部に該主弁体と一体に上
下動するピストン体を設け、これを収容する弁本
体のシリンダ部との間にダンパ室を形成し、主弁
体の開弁時に該ダンパ室に給液液体を導入し、非
常時には、液面上限検出信号により主弁体の係止
が解除され主弁体と共に上記ピストン体が下動し
てダンパ室内の液体を絞り通路を介して排出せし
め、ダンパ室の液圧により主弁体をダンパ作用を
有して緩やかに閉弁させ、緊急閉弁の場合の如き
ウオータハンマー現象の発生を防止しうるように
した給液停止装置を提供することを目的とする。 This invention provides a piston body that moves up and down integrally with the main valve body at the lower part of the main valve body, and forms a damper chamber between the piston body and the cylinder part of the valve body that accommodates the piston body, and opens the main valve body. In case of an emergency, the main valve element is unlocked by the liquid level upper limit detection signal, and the piston body moves downward together with the main valve element to throttle the liquid in the damper chamber and open the passage. A liquid supply stop device that allows fluid to be discharged through the damper chamber and has a damper effect to gently close the main valve body using the liquid pressure in the damper chamber, thereby preventing the occurrence of water hammer phenomenon such as in the case of emergency valve closing. The purpose is to provide
そのための構成は、給液管途中に設けられ、弁
座及び有底筒体状シリンダ部を有する弁本体と、
該弁本体に上下動自在に設けられた弁体軸と、該
弁体軸と一体的に上下動して該弁座に離着座し液
流路の開閉用主弁を構成する主弁体と、該主弁体
の下部に該主弁体と略一体的に上下動自在の状態
で該シリンダ部に嵌入されており、該シリンダ部
の底部との間にダンパ室を形成するピストン体
と、前記シリンダ部に設けられ該ピストン体が上
動位置にあるとき該ダンパ室をその上流側の液流
路に連通する液流入用流路と、該主弁の閉弁時に
該ダンパ室内に貯溜された液体をその絞り度に応
じて排出し該主弁の閉弁動作にダンパ効果を付与
せしめる液排出用絞り流路と、前記弁本体に回動
自在に設けられ該弁体を開弁させるハンドルと、
前記主弁が開弁状態にあるときニードルが前記弁
体軸に設けた係止体を外方に拡張させて該弁体軸
をロツクするロツク機構部と、給液々面が所定位
置に達したとき、前記ニードルを変位させて前記
ロツクを解除し前記主弁の閉弁を行わせる第1の
ロツク解除機構部と、定量給液終了時に操作者に
より作動され、前記ニードルを逃げ変位させて前
記ロツクを解除し前記主弁の閉弁を行わせる第2
のロツク解除機構部とよりなるものである。 The configuration for this purpose includes a valve body that is provided in the middle of the liquid supply pipe and has a valve seat and a bottomed cylindrical cylinder part;
a valve body shaft provided on the valve body so as to be movable up and down; and a main valve body that moves up and down integrally with the valve body shaft and seats on and off the valve seat, constituting a main valve for opening and closing the liquid flow path. , a piston body fitted into the cylinder part in a vertically movable state substantially integrally with the main valve body at the lower part of the main valve body, and forming a damper chamber between the piston body and the bottom of the cylinder part; a liquid inflow passage provided in the cylinder portion and communicating the damper chamber with the liquid passage on the upstream side when the piston body is in the upward movement position; a liquid discharge throttle channel for discharging the liquid according to its degree of restriction and imparting a damper effect to the closing operation of the main valve; and a handle rotatably provided on the valve body for opening the valve body. and,
A locking mechanism portion in which a needle expands a locking body provided on the valve body shaft outward to lock the valve body shaft when the main valve is in an open state, and a liquid supply surface reaches a predetermined position. A first lock release mechanism displaces the needle to release the lock and close the main valve; A second valve that releases the lock and closes the main valve.
It consists of a lock release mechanism section.
次に、その一実施例につき説明する。 Next, one example thereof will be explained.
第2図は本考案になる給液停止装置の一実施例
の正面図、第3図A,Bは夫々は第2図中A−
A線及びB−B線に沿う断面矢視図であ
る。 FIG. 2 is a front view of one embodiment of the liquid supply stop device according to the present invention, and FIGS. 3A and 3B are A--A in FIG.
FIG. 2 is a cross-sectional view taken along line A and line B-B.
図中、給液停止装置21は、弁本体22及びこ
れを閉蓋する上部ケーシング20を有する。弁本
体22は、ローデイングアーム9に接続される流
入口22aと、ドロツプパイプ11に接続される
流出口22bと、室22c下部の弁座部材23と
を有する。弁座部材23はリング状弁座23aと
リブ部23bを介した中央有底筒状のシリンダ部
23c(内部がダンパ室23dとなる)とを有し、
シリンダ部23cはその周囲で底面から略寸法l1
(第9図に示す)の高さ位置に複数の連通孔23
e(流入口22aとダンパ室23dを連通する)
と底部の絞り連通孔23f(ダンパ室23dと流
出口22bを連通する)とを有している。 In the figure, the liquid supply stop device 21 has a valve body 22 and an upper casing 20 that closes the valve body 22. The valve body 22 has an inlet 22a connected to the loading arm 9, an outlet 22b connected to the drop pipe 11, and a valve seat member 23 below the chamber 22c. The valve seat member 23 has a ring-shaped valve seat 23a and a central bottomed cylindrical cylinder part 23c (the inside becomes a damper chamber 23d) with a rib part 23b interposed therebetween.
The cylinder part 23c has an approximate dimension l 1 from the bottom around the cylinder part 23c.
A plurality of communication holes 23 are provided at the height position (shown in Fig. 9).
e (communicates the inlet 22a and the damper chamber 23d)
and a throttle communication hole 23f at the bottom (which communicates the damper chamber 23d and the outlet 22b).
24は主弁体で、弁体部24aを有し、上記弁
座23aと共に主弁25を構成する。主弁体24
はその下部に筒形状ピストン部24b(中心孔2
4cを有する)が突設され、後述する弁体軸27
と一体的にコイルバネ26により下方へ付勢さ
れ、弁体部24aが弁座23aに着座している。
尚ピストン部24bはシリンダ部23cに対し比
較的密に且つ上下動自在に常時嵌入しており、両
者24b,23c間に上記ダンパ室23dが主弁
25の下流側で構成される。 A main valve body 24 has a valve body portion 24a, and constitutes a main valve 25 together with the valve seat 23a. Main valve body 24
has a cylindrical piston part 24b (center hole 2
4c) is provided protrudingly, and a valve body shaft 27 (described later)
The valve body portion 24a is integrally urged downward by the coil spring 26, and the valve body portion 24a is seated on the valve seat 23a.
The piston portion 24b is always fitted relatively tightly into the cylinder portion 23c so as to be vertically movable, and the damper chamber 23d is formed on the downstream side of the main valve 25 between the piston portion 24b and the piston portion 23c.
27は弁体軸で、中心孔27a、上部孔27
b、下方段部27cを有し、下方より順次シリン
ダ部23c、主弁体24の中心孔24c及び上部
ケーシング20の孔20aに嵌挿され、しかも段
部27c及びストツプリング28間に主弁体24
が固定されるため、該主弁体24と一体的に上下
動自在となる。 27 is a valve body shaft, which includes a center hole 27a and an upper hole 27.
b. It has a lower stepped portion 27c, which is fitted into the cylinder portion 23c, the center hole 24c of the main valve body 24, and the hole 20a of the upper casing 20 in order from below, and the main valve body 24 is fitted between the stepped portion 27c and the stop ring 28.
Since it is fixed, it can move up and down integrally with the main valve body 24.
29はリセツト軸で、弁体軸27の中心孔27
aに相対的に上下動自在に嵌入され、第3図A中
自重により下動してロツド下端が後述する押圧片
42に当接して停止している。 29 is a reset shaft, which is inserted into the center hole 27 of the valve body shaft 27.
The rod is fitted so as to be movable up and down relative to A, and as shown in FIG. 3A, it moves downward due to its own weight, and the lower end of the rod comes into contact with a pressing piece 42, which will be described later, and stops.
30は回動自在のハンドル軸で、押圧レバー3
1(第3図B、第4図に示す)、ハンドル32、
後述する第2のロツク解除機構部53を構成する
押圧ピン33、一対の扇形凸部よりなる第1のク
ラツチ部34(第8図中斜線で示す)が固着され
る。尚ハンドル32はねじりバネ35(第3図B
に示す)により第3図Aにおいて下方向へ付勢さ
れている。 30 is a rotatable handle shaft, and a push lever 3
1 (shown in Figures 3B and 4), handle 32,
A pressing pin 33 constituting a second lock release mechanism section 53, which will be described later, and a first clutch section 34 (shown with diagonal lines in FIG. 8) consisting of a pair of fan-shaped convex sections are fixed. The handle 32 is attached to a torsion spring 35 (Fig. 3B).
) is biased downward in FIG. 3A.
41は二又状のリンクで、ハンドル軸30に別
体で回転自在に嵌合されており、第7図、第8図
の如く、先端切欠溝41a、上記第2のロツク解
除機構部53を構成する押圧片42、一対の扇形
凸部よりなる第2のクラツチ部43(第8図中梨
地で示す)を有する。リンク41は切欠溝41a
が弁体軸27下部にピン44を介して連結され弁
体軸27と連動して第3図A、第6図、第7図の
如き閉弁時には、反時計方向回動限に位置する。 Reference numeral 41 denotes a forked link, which is separately rotatably fitted to the handle shaft 30, and as shown in FIGS. It has a pressing piece 42 and a second clutch portion 43 (shown with satin finish in FIG. 8) consisting of a pair of fan-shaped convex portions. The link 41 has a notched groove 41a
is connected to the lower part of the valve body shaft 27 via a pin 44, and in conjunction with the valve body shaft 27, is located at the limit of counterclockwise rotation when the valve is closed as shown in FIGS. 3A, 6, and 7.
45はロツク機構部で、上部ケーシング20の
ダイヤフラム膜46に固着したニードル47(テ
ーパ部47aを有する)と、弁体軸27の上部孔
27bに収納したボール48と、中心孔20a上
部のテーパ状リング部材49とよりなる。 Reference numeral 45 denotes a locking mechanism, which includes a needle 47 (having a tapered part 47a) fixed to the diaphragm membrane 46 of the upper casing 20, a ball 48 housed in the upper hole 27b of the valve shaft 27, and a tapered part at the upper part of the center hole 20a. It consists of a ring member 49.
50は第1のロツク解除機構部で、上記ダイヤ
フラム膜46(コイルバネ51により下方へ付勢
される)と、該ダイヤフラム膜46により画成さ
れた上室20b、下室20cとよりなり、上室2
0bは第2図、第6図の如く液面検知パイプ52
を連通され、且つ下室20cは大気に開放され
る。 Reference numeral 50 denotes a first lock release mechanism section, which is composed of the diaphragm membrane 46 (biased downward by a coil spring 51), and an upper chamber 20b and a lower chamber 20c defined by the diaphragm membrane 46. 2
0b is the liquid level detection pipe 52 as shown in Figures 2 and 6.
The lower chamber 20c is opened to the atmosphere.
53は第2のロツク解除機構部で、第7図の如
くハンドル軸30の軸直交方向に固着した上記押
圧ピン33と、リンク41にピン54により枢支
された上記押圧片42とよりなり、第3図A、第
6図、第7図の閉弁時には押圧片42は自重によ
り反時計方向へ回動し押圧ピン33に当接して停
止している。 Reference numeral 53 denotes a second lock release mechanism section, which consists of the above-mentioned pressing pin 33 fixed in the direction orthogonal to the axis of the handle shaft 30 as shown in FIG. When the valve is closed in FIGS. 3A, 6, and 7, the pressing piece 42 rotates counterclockwise due to its own weight, comes into contact with the pressing pin 33, and stops.
61は分流弁で、第4図A〜D、第6図の如
く、室22cと流出口22bとを分流する分流路
62途中に設けられ、弁本体22の孔22dに嵌
入固定された分流弁本体63の弁座63aと弁体
64の弁体部64aとよりなる。分流弁本体63
(弁座63a)は更に中心孔63bと弁本体22
の下方に突出する円筒形ガード部63cを有し、
ガード部63cは孔63d、一の軸方向切欠溝6
3e、一の長孔63f及びその両側の一対の係合
溝63gを有する。弁体64(弁体部64a)は
更に軸部64bを有し、バネ65により下方へ付
勢され弁体部64aが弁座63aに着座して分流
弁61を閉弁し、且つ軸部64bが中心孔63b
を挿通してガード部63cの孔63d内に所定量
突出している。尚押圧レバー31は切欠溝63e
を介して孔63d内に進入し、弁体64の軸部6
4b下端に対向している。 Reference numeral 61 designates a flow divider valve, which is provided in the middle of the flow divider path 62 that divides the flow between the chamber 22c and the outlet 22b, as shown in FIGS. 4A to D and FIG. 6, and is fitted and fixed into the hole 22d of the valve body 22. It consists of a valve seat 63a of the main body 63 and a valve body portion 64a of the valve body 64. Diversion valve body 63
(The valve seat 63a) is further connected to the center hole 63b and the valve body 22.
It has a cylindrical guard part 63c projecting downward,
The guard portion 63c has a hole 63d and one axial notch groove 6.
3e, one elongated hole 63f and a pair of engagement grooves 63g on both sides thereof. The valve body 64 (valve body part 64a) further has a shaft part 64b, and is urged downward by a spring 65 so that the valve body part 64a seats on the valve seat 63a to close the flow dividing valve 61, and the shaft part 64b is the center hole 63b
is inserted into the hole 63d of the guard portion 63c and protrudes by a predetermined amount. Note that the pressing lever 31 has a notch groove 63e.
The shaft portion 6 of the valve body 64 enters the hole 63d through the hole 63d.
It faces the lower end of 4b.
第5図A,Bの66は弁開用(分流弁の弁棒押
上用)専用工具で、把持部66a、軸部66b
(一対の係合ピン部66cを有する)、先端押圧部
66dを有する。 Reference numeral 66 in FIGS. 5A and 5B is a special tool for opening the valve (for pushing up the valve stem of the diversion valve), which includes a grip part 66a and a shaft part 66b.
(having a pair of engagement pin parts 66c) and a tip pressing part 66d.
67は負圧発生部としてのベンチユリーで、第
4図A、第6図の如く、分流路62の分流弁61
の下流側に設けられ、液面検知パイプ52の分岐
管52aが開口される。 67 is a ventilator as a negative pressure generating part, and as shown in FIG. 4A and FIG.
A branch pipe 52a of the liquid level detection pipe 52 is opened.
次に、上記給液停止装置21の操作に付き説明
する。第3図A、第6図は定量弁8が閉弁して後
述の如くローデイングアーム9中の油液を流出さ
せた後ハンドル32の回動復帰操作により主弁2
5を閉弁させた状態とする。尚ダンパ室23d内
には空気が満たされている。同図中、ハンドル3
2を操作して第8図の如く第1のクラツチ部34
をリンク41の第2のクラツチ部43にかみ合
せ、この状態でハンドル32を時計方向へ回動さ
せる。すると、リンク41が上記クラツチかみ合
いにより同方向へ一体的に回動するため、ピン4
4を介して弁体軸27及び主弁体24が連動的に
上動変位し、弁体部24aが弁座23aから離座
して主弁25が開弁される。主弁体24は第9図
の如く大略寸法l2上動し(但しl2>l1)、流入口2
2aの油液が主弁25を介してドロツプパイプ1
1に流れ始め給液が開始される。 Next, the operation of the liquid supply stop device 21 will be explained. 3A and 6, after the metering valve 8 closes and the oil in the loading arm 9 flows out as described later, the main valve 2
5 is in a closed state. Note that the damper chamber 23d is filled with air. In the figure, handle 3
2 to open the first clutch portion 34 as shown in FIG.
is engaged with the second clutch portion 43 of the link 41, and in this state, the handle 32 is rotated clockwise. Then, since the link 41 integrally rotates in the same direction due to the engagement of the clutch, the pin 4
4, the valve body shaft 27 and the main valve body 24 are moved upward in conjunction with each other, the valve body portion 24a is separated from the valve seat 23a, and the main valve 25 is opened. As shown in Fig. 9, the main valve body 24 moves upward by approximately dimension l 2 (however, l 2 >l 1 ), and the inlet 2
2a is passed through the main valve 25 to the drop pipe 1.
1, and liquid supply begins.
ここで、上記寸法l2>l1の関係によりピストン
部24bはシリンダ部23c内を連通孔23eよ
り上方位置まで変位する。従つて流入口22aの
油液が連通孔23eを介してダンパ室23d内に
も流入し、ダンパ室23d内の空気は絞り連通孔
23fから流出口22b側へ押出され、ダンパ室
23d内は油液に置換される。 Here, the piston portion 24b is displaced within the cylinder portion 23c to a position above the communication hole 23e due to the relationship of the above-described dimension l 2 >l 1 . Therefore, the oil in the inlet 22a also flows into the damper chamber 23d through the communication hole 23e, the air in the damper chamber 23d is pushed out from the throttle communication hole 23f toward the outlet 22b, and the damper chamber 23d is filled with oil. It is replaced by liquid.
上記弁体軸27が上動限に至ると同時に、第9
図中相対的にニードル47のテーパ部47aがボ
ール48を押圧してリング部材49に押当てるた
め、弁体軸27は同図の上動位置にロツクされ
る。尚弁体軸27の上動開始時に押圧片42もリ
ンク41に対し相対的に第7図の関係を保つたま
まハンドル軸30を中心に時計方向へ回動して第
9図の位置に至る。従つて、リセツト軸29は押
圧片42により押されて上動し、第9図の如く、
リセツト軸29上端がニードル47下端に略接す
る。 At the same time that the valve body shaft 27 reaches its upper limit of movement, the ninth
In the drawing, the tapered portion 47a of the needle 47 presses the ball 48 against the ring member 49, so that the valve shaft 27 is locked in the upward movement position in the drawing. When the valve body shaft 27 starts to move upward, the pressing piece 42 also rotates clockwise around the handle shaft 30 while maintaining the relationship shown in FIG. 7 relative to the link 41 to reach the position shown in FIG. 9. . Therefore, the reset shaft 29 is pushed by the pressing piece 42 and moves upward, as shown in FIG.
The upper end of the reset shaft 29 substantially contacts the lower end of the needle 47.
一方、上記ハンドル32の回動時に第9図の如
く押圧レバー31が分流弁61の弁体64の軸部
64bを介して弁体64を上方へ押圧変位せし
め、分流弁61を開弁せしめる。ハンドル軸30
及び押圧レバー31はねじりバネ35の付勢力に
より第9図〜第11図の下方回動位置に保持され
るため、分流弁61は開弁状態を保持する。従つ
て、室22cの油液の一部が分流路62を経由し
て流出口22bに定常的に流れ始めベンチユリ6
7の機能により分岐管52aに負圧が発生する。
しかるに、給液開始当初はタンクローリ車のハツ
チ13内の液面は低く液面検知パイプ52が液面
によつて塞がれることがないため、分岐管52a
の負圧発生により吸引される空気は液面検知パイ
プ52の開口から補給され上室20bが負圧にな
ることはない。 On the other hand, when the handle 32 is rotated, the pressing lever 31 presses and displaces the valve element 64 upward via the shaft portion 64b of the valve element 64 of the flow dividing valve 61, opening the flow dividing valve 61, as shown in FIG. Handle shaft 30
Since the pressing lever 31 is held in the downward rotational position shown in FIGS. 9 to 11 by the biasing force of the torsion spring 35, the diversion valve 61 is maintained in the open state. Therefore, a part of the oil in the chamber 22c begins to steadily flow to the outlet 22b via the branch channel 62, and
7, negative pressure is generated in the branch pipe 52a.
However, at the beginning of the liquid supply, the liquid level in the hatch 13 of the tank truck is low and the liquid level detection pipe 52 is not blocked by the liquid level, so the branch pipe 52a
The air sucked in due to the generation of negative pressure is replenished from the opening of the liquid level detection pipe 52, so that the upper chamber 20b does not become under negative pressure.
しかるに、給液の進行と共に液面が上昇して上
限位置に至り(非常時)、液面検知パイプ52の
開口が塞がれると、該パイプ52側からの空気補
給が断たれ上室20b内の空気が吸引され低圧と
なる。ここで下室20cは常時大気圧であるか
ら、ダイヤフラム膜46がバネ51に抗して上動
する。即ち第1のロツク解除機構部50が作動し
てニードル47が上動され、ロツク機構部45の
ロツクが解除される。かくして弁体軸27及び主
弁体24はバネ26により下動され弁体部24a
が弁座23aに着座復帰し主弁25は閉弁され給
液が停止される。このときピストン部24bがシ
リンダ部23c内で下動するため、ダンパ室23
d内の油液は絞り連通孔23fから下流側へ押し
出されるが、絞り連通孔23fの絞り効果により
徐々にしか押し出されず主弁体24にダンパ効果
を付与する。従つて、主弁体24は上記ダンパ効
果により緩やかに下動されて上記着座を行うた
め、閉弁時にウオータハンマーを生ずることなく
ウオータハンマーに伴なう定量弁8、流量計7等
への悪影響を生ずることはない。又主弁体24の
下動速度は絞り連通孔23fの絞り部内径を適宜
選定することにより容易に調整することができ
る。またこの絞り連通孔23fを固定絞りでなく
可変絞りとすれば、その調整は一層容易になる。 However, as the liquid supply progresses, the liquid level rises and reaches the upper limit position (in an emergency), and when the opening of the liquid level detection pipe 52 is blocked, the air supply from the pipe 52 side is cut off, and the air in the upper chamber 20b is sucked in, resulting in low pressure. Since the lower chamber 20c is always at atmospheric pressure, the diaphragm film 46 moves upward against the spring 51. That is, the first lock release mechanism 50 is activated, the needle 47 is moved upward, and the lock of the lock mechanism 45 is released. Thus, the valve shaft 27 and the main valve 24 are moved downward by the spring 26, and the valve body 24a
The piston 24b returns to its seat on the valve seat 23a, the main valve 25 is closed, and the supply of liquid is stopped. At this time, the piston 24b moves downward within the cylinder 23c,
The oil in d is pushed out downstream from the throttle communication hole 23f, but is pushed out only gradually due to the throttle effect of the throttle communication hole 23f, providing a damper effect to the main valve element 24. Therefore, the main valve element 24 is moved downward slowly due to the damper effect and seats as described above, so that water hammer is not generated when the valve is closed, and there is no adverse effect on the metering valve 8, flowmeter 7, etc. that would be caused by water hammer. The downward movement speed of the main valve element 24 can be easily adjusted by appropriately selecting the inner diameter of the throttle portion of the throttle communication hole 23f. If the throttle communication hole 23f is a variable throttle instead of a fixed throttle, the adjustment becomes even easier.
弁体軸27の下動時に、リンク41及び押圧片
42も連動的に反時計方向へ回動して第6図の位
置に復帰し、上記クラツチかみ合いによりハンド
ル軸30、ハンドル32もリンク41と一体的に
第6図の位置まで回動復帰し、分流弁61も弁体
64が下動して閉弁状態となる。尚弁体軸27の
下動中にリセツト軸29もニードル47の下端か
ら離れて下動する。 When the valve body shaft 27 moves downward, the link 41 and the pressing piece 42 also rotate counterclockwise in conjunction with each other and return to the position shown in FIG. The valve body 64 integrally rotates back to the position shown in FIG. 6, and the valve body 64 of the flow dividing valve 61 also moves downward to be in a closed state. Incidentally, while the valve body shaft 27 is moving downward, the reset shaft 29 also moves downward away from the lower end of the needle 47.
尚上記非常時での閉弁の後は、ローデイングア
ーム9中に油液は満たされており、主弁体24の
上面には液圧が作用しているため、この後ハンド
ル32を操作しても手動力では回動させることは
できず、ハンドル誤操作により油液が漏洩するお
それはないと共に、ハンドル操作により油液が盗
難されるおそれもない。又ハンドル操作の不可能
を知ることにより、逆に上記非常時用の閉弁がな
された、即ち定量弁等が故障したことを知ること
ができ、直ちに対応策を取れるという利点もあ
る。尚、上述の如く非常時での閉弁の後にハンド
ル32の操作によつては主弁25が開弁しない理
由は、主弁体24の上流側に液圧が作用している
からであり、従来の如くまずパイロツト弁のみを
開弁させるのであれば上記非常時の閉弁の後でも
容易に主弁の開弁もなしうるのである。 Note that after the valve is closed in the above-mentioned emergency, the loading arm 9 is filled with oil and hydraulic pressure is acting on the upper surface of the main valve body 24, so the handle 32 cannot be operated after this. However, it cannot be rotated by manual force, so there is no risk of oil leakage due to erroneous operation of the handle, and there is no risk of the oil being stolen due to handle operation. In addition, by knowing that the handle cannot be operated, it is possible to know that the emergency valve has been closed, that is, that the metering valve or the like has failed, and there is the advantage that countermeasures can be taken immediately. As mentioned above, the reason why the main valve 25 does not open by operating the handle 32 after closing in an emergency is that hydraulic pressure is acting on the upstream side of the main valve body 24. If only the pilot valve is opened first as in the conventional case, the main valve can also be easily opened even after the valve is closed in an emergency.
上記構成になる給液停止装置21は、液面が所
定位置まで変位したときに液面検知パイプ52の
開口が塞がれてダイヤフラム膜46の上室20
b、下室20c間で生ずる差圧によつて第1のロ
ツク解除機構部50が作動する構成であるから、
微圧の液面検知信号によつても確実に動作する。 The liquid supply stop device 21 configured as described above is configured so that when the liquid level is displaced to a predetermined position, the opening of the liquid level detection pipe 52 is closed and the upper chamber 20 of the diaphragm membrane 46 is closed.
b. Since the first lock release mechanism section 50 is configured to operate due to the differential pressure generated between the lower chamber 20c,
It operates reliably even with a low pressure liquid level detection signal.
次に、上記定量弁の故障等の原因により非常時
用閉弁がなされた後、給液所側で原因が究明され
修理が完了した際には、迅速にハンドル32の操
作により給液が可能の状態に復帰してやらなけれ
ばいけないが、これには分流弁61を開弁させて
ローデイングアーム9中の油液を抜いてやればよ
い。(このときハンドル32の操作は上記理由に
より不可能である。)
ここで、ローリ車の運転手が勝手にドライバ等
により弁体64を押上げることができるとする
と、分流弁61が傷付いたり上記原因の究明がな
される以前に再び給液が開始される等のメインテ
ナンス上の不都合を生ずるおそれがある。従つて
本願では、上記分流弁61にガード部63cを設
けて上記ドライバ等の汎用工具ではガード部63
cが邪魔になつて開弁操作不可能としており、給
油所側の作業員が確実に上記原因の究明、修理を
行つた後第5図A,Bに示す専用工具66により
開弁させるのであり、以下その説明をする。 Next, after the emergency valve is closed due to a failure of the metering valve, etc., when the cause is investigated and repairs are completed at the liquid supply station, liquid can be supplied quickly by operating the handle 32. It is necessary to return to the above state, but this can be done by opening the flow dividing valve 61 and draining the oil in the loading arm 9. (At this time, it is impossible to operate the handle 32 for the reason mentioned above.) If the driver of the lorry vehicle were to be able to push up the valve body 64 without permission using a screwdriver, etc., the diverter valve 61 could be damaged. There is a risk that maintenance problems may occur, such as liquid supply being restarted before the cause is investigated. Therefore, in the present application, the diverter valve 61 is provided with a guard portion 63c, and the guard portion 63c is provided in the general-purpose tool such as the screwdriver.
c is in the way, making it impossible to open the valve, and the worker at the filling station must properly investigate the cause and repair it before opening the valve using the special tool 66 shown in Figures 5A and 5B. , which will be explained below.
上記原因究明、修理が完了した後、給油所側の
作業員は、第4図A中、二点鎖線で示す如く専用
工具66の先端をガード部63cの長孔63fを
挿通させて孔63d内に差込み、一対の係合ピン
部66cを夫々係合溝63gに係合させて当てが
い、先端押圧部66dを弁体64の軸部64b下
方に対向させる。そして工具66の把持部66a
を握つて上記係合部を支点として下方へ回動させ
ると、てこの原理により押圧部66dが上動して
大なる力で軸部64bに当接して弁体64をバネ
65に孔して押上げる。従つて分流弁61が開弁
し、ローデイングアーム9中の油液が分流路62
を通つて流出口22b側へ流出し、ハンドル32
の操作により開弁可能の最初の状態に復帰する。 After the above cause investigation and repair are completed, the worker at the gas station inserts the tip of the special tool 66 through the long hole 63f of the guard portion 63c and into the hole 63d, as shown by the two-dot chain line in FIG. 4A. The pair of engagement pin portions 66c are respectively engaged with and applied to the engagement grooves 63g, and the tip pressing portion 66d is opposed to the lower side of the shaft portion 64b of the valve body 64. And the grip part 66a of the tool 66
When the valve body 64 is rotated downward using the engaging portion as a fulcrum, the pressing portion 66d moves upward due to the lever principle and abuts against the shaft portion 64b with a large force, causing the valve body 64 to be inserted into the spring 65. Push up. Therefore, the diversion valve 61 opens, and the oil in the loading arm 9 flows into the diversion path 62.
through the handle 32 to the outlet 22b side.
The operation returns to the initial state where the valve can be opened.
ここで、第1図の給液出荷装置1は、ローデイ
ングアーム9の上流側に定量弁8が設けてある
が、実際上はハツチ13内に満タンになるまで
(油液が上限位置になるまで)給液するケース
(非常時)よりも予め設定した定量の給液がなさ
れたときに定量弁8を自動的に閉弁させて出荷を
停止させるケース(通常時)の方が多い。 Here, although the liquid supply and shipping device 1 shown in FIG. There are more cases (in normal times) in which the metering valve 8 is automatically closed and shipping is stopped when a preset amount of liquid is supplied than in cases in which the liquid is supplied (in an emergency).
定量弁8によつて給液が自動停止すると、第9
図中、第1のロツク解除機構部45は何ら作動し
ないから主弁25は開弁したままである。従つ
て、第1図中ローデイングアーム9中に残留して
いる油液は重力によりそのまま給液停止装置21
の弁部を流れてドロツプパイプ11に流出する。
同時にダンパ室23d内の油液もドロツプパイプ
11に流出する。 When the liquid supply is automatically stopped by the metering valve 8, the 9th
In the figure, since the first lock release mechanism 45 does not operate at all, the main valve 25 remains open. Therefore, the oil remaining in the loading arm 9 in FIG.
The liquid flows through the valve portion of the valve and flows out into the drop pipe 11.
At the same time, the oil in the damper chamber 23d also flows out into the drop pipe 11.
作業者は上記残留油液が完全に流出するまで若
干の時間待ちをした後、第11図中、ハンドル3
2を点線矢印で示す反時計方向へ回動復帰させ
る。すると、同図の構成より明らかな如く、第1
のクラツチ部34が同方向へ回動してもクラツチ
かみ合いがなされず、リンク41は弁体軸27と
共に第9図〜第11図の回動位置にロツクされた
ままで、ハンドル軸30、ハンドル32のみが同
方向へ回動し第6図と同一位置に至る。従つて、
第12図の如く、押圧ピン33が同方向回動途中
に押圧片42右端を押圧して時計方向へ回動させ
るため(このときのクラツチ部分の構成を第13
図に示す)、押圧片42はリセツト軸29を上方
へ押圧変位せしめニードル47を上動させる。 The operator waits for a while until the residual oil is completely drained, and then turns the handle 3 in Figure 11.
2 in the counterclockwise direction indicated by the dotted arrow. Then, as is clear from the configuration in the same figure, the first
Even if the clutch portions 34 of the two rotate in the same direction, the clutches are not engaged, and the link 41 remains locked in the rotational position shown in FIGS. only rotates in the same direction and reaches the same position as in FIG. Therefore,
As shown in FIG. 12, the pressing pin 33 presses the right end of the pressing piece 42 while rotating in the same direction to rotate it clockwise (the configuration of the clutch portion at this time is shown in Fig. 13).
(shown in the figure), the pressing piece 42 presses and displaces the reset shaft 29 upward, causing the needle 47 to move upward.
即ち、第2のロツク解除機構部53が作動し、
最終的にニードル47が所定寸法上動してボール
48の押圧を解除させる。 That is, the second lock release mechanism section 53 operates,
Finally, the needle 47 moves up a predetermined distance to release the pressure on the ball 48.
従つて、第9図中、弁体軸27及び弁体24は
ロツク機構部45によるロツクを解除されたこと
になり、同図の位置よりバネ26により下動開始
し、上記場合と同様に、主弁24が閉弁する。同
時にリンク41も反時計方向へ回動復帰して第6
図の位置に戻ると共に、押圧片42も同図の位置
に戻る。 Therefore, in FIG. 9, the valve body shaft 27 and the valve body 24 are released from the lock by the locking mechanism 45, and begin to move downward from the position shown in the figure by the spring 26, as in the above case. Main valve 24 is closed. At the same time, the link 41 also rotates counterclockwise and returns to the sixth position.
At the same time as returning to the position shown in the figure, the pressing piece 42 also returns to the position shown in the figure.
上記操作によれば、定量弁8が閉弁した定量給
液時に、ローデイングアーム9中に残留した油液
を完全に流出させた後に、マニユアル的に給液停
止装置21を閉弁せしめている。従つて、第1図
中定量弁8及び給液停止装置21間の配管部にお
いては、立上り配管部4aに若干の油液が残留し
ているのみでローデイングアーム9には何ら油液
が残留していないため、この状態で外気温度が上
昇して油液が膨脹しても油液量が少ないためロー
デイングアーム9等を傷めることはなく、又ロー
デイングアーム9は油液が充満しておらず軽量の
ため、次のハツチへ移し変える回動操作が容易で
作業が楽になる。 According to the above operation, the liquid supply stop device 21 is manually closed after the oil remaining in the loading arm 9 has completely flowed out during metered liquid supply when the metering valve 8 is closed. . Therefore, in the piping section between the metering valve 8 and the liquid supply stop device 21 in FIG. Therefore, even if the outside air temperature rises and the oil expands in this state, the amount of oil is small and the loading arm 9 etc. will not be damaged, and the loading arm 9 will not be filled with oil. Because it is lightweight and has no holes, it is easy to rotate the hatch to move it to the next hatch, making work easier.
第14図は本考案給液停止装置の他の実施例を
示し、同図中、第3図Aと同一部分には同一符号
を付してその説明を省略する。同図中、給液停止
装置71は、上記給液停止装置21のリセツト軸
29及び押圧ピン33、押圧片42よりなる第2
のロツク解除機構部53の代わりに、上部ケーシ
ング20につまみ式の第2のロツク解除機構部7
2を設けたものである。 FIG. 14 shows another embodiment of the liquid supply stop device of the present invention, in which the same parts as those in FIG. In the same figure, the liquid supply stop device 71 is a second one consisting of the reset shaft 29 of the liquid supply stop device 21, the pressing pin 33, and the pressing piece 42.
In place of the lock release mechanism 53, a second knob type release mechanism 7 is provided in the upper casing 20.
2.
第2のロツク解除機構部72は、上部ケーシン
グ20の上部に軸方向に移動可能に支承したつま
み73(つまみ部73a、軸部73bを有する)
と、ダイヤフラム膜46に固着したニードル4
7′と一体でその上端に設けられた延長部74と、
つまみ73の軸部73b及び該延長部74を連結
する係合ピン75とからなつている。 The second lock release mechanism section 72 includes a knob 73 (having a knob part 73a and a shaft part 73b) supported movably in the axial direction on the upper part of the upper casing 20.
and the needle 4 fixed to the diaphragm membrane 46.
an extension part 74 integral with 7' and provided at its upper end;
It consists of a shaft portion 73b of the knob 73 and an engagement pin 75 that connects the extension portion 74.
従つて、主弁25が開弁して主弁体24がロツ
ク機構部45によりロツクされた状態において、
定量給液が終了してローデイングアーム9中の油
液も流出した際に、つまみ73を上方へ引張ると
ニードル47′が上動変位して上記ロツク機構部
45のロツクが解除され、上記の場合と同様に主
弁体24が下動して閉弁される。 Therefore, when the main valve 25 is open and the main valve body 24 is locked by the lock mechanism 45,
When the fixed amount of liquid has been supplied and the oil in the loading arm 9 has also flowed out, pulling the knob 73 upward moves the needle 47' upward and releases the lock of the locking mechanism 45. As in the case above, the main valve body 24 moves downward to close the valve.
第3図Aの給液停止装置21の場合は、給液中
或いは定量給液終了後にローデイングアーム9か
ら未だ油液が抜け切らないときに誤つてハンドル
32に触れて回動復帰させると、第2のロツク解
除機構部53の作動により主弁25を閉弁させて
しまう。すると主弁体24には液圧が作用してい
るため、ハンドル32の操作により再び開弁する
ことは不可能であり、分流弁61の開弁操作を経
なければならず思わぬ面倒な作業を必要とするお
それがある。 In the case of the liquid supply stop device 21 shown in FIG. 3A, if the handle 32 is accidentally touched and rotated back while the oil is being supplied or when the oil has not completely drained from the loading arm 9 after the completion of quantitative liquid supply, The operation of the second lock release mechanism 53 causes the main valve 25 to close. Then, since hydraulic pressure is acting on the main valve body 24, it is impossible to open the valve again by operating the handle 32, and the operation of opening the diverter valve 61 must be performed, resulting in an unexpectedly troublesome task. may require.
しかるに、この給液停止装置71によれば、つ
まみ73の引張り操作を必要とするため、誤つて
ハンドル32に触れてもロツク解除がなされず上
記面倒を要することがないという利点がある。 However, according to this liquid supply stop device 71, since it is necessary to pull the knob 73, even if the handle 32 is accidentally touched, the lock will not be released, and there is an advantage that the above-mentioned trouble is not required.
上述の如く、本考案になる給液停止装置によれ
ば、主弁体の下部に該主弁体と一体に上下動する
ピストン体を設け、これを収容する弁本体のシリ
ンダ部との間にダンパ室を形成し、主弁体の開弁
時には該ダンパ室に給液液体を導入し、非常時に
は、液面上限検出信号により主弁体の係止が解除
され主弁体と共に上記ピストン体が下動してダン
パ室内の液体を絞り通路を介して排出せしめ、ダ
ンパ室の液圧により主弁体をダンパ作用を有して
閉弁させるようにしているため、ウオータハンマ
ー現象を生じることなく配管系統の損傷を防止し
える。 As described above, according to the liquid supply stop device of the present invention, a piston body that moves up and down integrally with the main valve body is provided at the lower part of the main valve body, and a piston body is provided between the piston body and the cylinder part of the valve body that accommodates the piston body. A damper chamber is formed, and when the main valve element is opened, supply liquid is introduced into the damper chamber. In an emergency, the main valve element is unlocked by a liquid level upper limit detection signal, and the piston body is moved together with the main valve element. By moving downward, the liquid in the damper chamber is discharged through the throttle passage, and the liquid pressure in the damper chamber acts as a damper to close the main valve body, so the piping can be closed without causing the water hammer phenomenon. It can prevent damage to the system.
又、本考案を上記実施例の如く構成すれば、少
なくとも非常時に主弁が閉弁した後は液圧が主弁
に作用してハンドル操作が不可能で主弁を開弁で
きないようにすることができ、従つてハンドルを
誤操作して油液を漏洩したり油液が盗難されたり
するのを防止しうると共に、ハンドル操作が不可
能であることにより逆に上記非常事態を知ること
ができ直ちに定量弁等の検査を行えばよいことを
知りうる等の特長を有する。 Furthermore, if the present invention is configured as in the above embodiment, at least in an emergency, after the main valve is closed, the hydraulic pressure will act on the main valve, making it impossible to operate the handle and making it impossible to open the main valve. Therefore, it is possible to prevent oil leakage or theft of oil due to incorrect operation of the handle, and conversely, since the handle cannot be operated, it is possible to immediately know of the above emergency situation. It has the advantage of being able to know what is required by inspecting metering valves, etc.
第1図は一般的な給液出荷装置の概略構成図、
第2図は本考案になる給液停止装置の一実施例の
正面図、第3図A,Bは夫々上記装置の第2図中
A−A線及びB−B線に沿う断面矢視
図、第4図A〜Dは夫々上記装置の分流弁部分の
縦断正面図、側面図、同図A中C−C線に沿
う断面矢視図、同図B中D−D線に沿う断面
矢視図、第5図A,Bは夫々上記分流弁開弁用工
具の正面図及び側面図、第6図及び第9図は夫々
上記装置の動作を示す概略構成図、第7図、第1
0図、第12図は夫々上記装置の第2のロツク解
除機構部の動作を示す一部切截側面部分図、第8
図、第11図、第13図は夫々上記装置のハンド
ル軸及びリンクのクラツチ部分の動作を示す一部
切截側面部分図、第14図は上記装置の他の実施
例の縦断正面図である。
1……給液出荷装置、8……定量弁、9……ロ
ーデイングアーム、10,21,71……給液停
止装置、11……ドロツプパイプ、13……ハツ
チ、14,52……液面検知パイプ、22……弁
本体、23,23′……弁座部材、23c……シ
リンダ部、23d……ダンパ室、23e……連通
孔、23f……絞り連通孔、24……主弁体、2
4b……ピストン部、25……主弁、27……弁
体軸、29……リセツト軸、30……ハンドル
軸、31……押圧レバー、32……ハンドル、4
1……リンク、45……ロツク機構部、50……
第1のロツク解除機構部、53,72……第2の
ロツク解除機構部、61……分流弁、62……分
流路、66……専用工具、67……ベンチユリ
ー。
Figure 1 is a schematic diagram of a general liquid supply and shipping device.
FIG. 2 is a front view of one embodiment of the liquid supply stop device according to the present invention, and FIGS. 3A and 3B are cross-sectional views of the device taken along lines A-A and B-B in FIG. 2, respectively. , FIGS. 4A to 4D are respectively a longitudinal sectional front view and a side view of the diverter valve portion of the above device, a sectional view taken along line C-C in FIG. 4A, and a sectional view taken along line DD in FIG. 5A and 5B are respectively a front view and a side view of the above-mentioned branch valve opening tool, and FIGS. 6 and 9 are schematic configuration diagrams showing the operation of the above-mentioned device, and FIGS. 7 and 1
0 and 12 are partially cut away side views showing the operation of the second lock release mechanism of the above device, and FIG.
11 and 13 are partially cutaway side views showing the operation of the handle shaft and the clutch portion of the link, respectively, of the above device, and FIG. 14 is a longitudinal sectional front view of another embodiment of the above device. . 1...Liquid supply shipping device, 8...Dosing valve, 9...Loading arm, 10, 21, 71...Liquid supply stop device, 11...Drop pipe, 13...Hatch, 14, 52...Liquid level Detection pipe, 22... Valve body, 23, 23'... Valve seat member, 23c... Cylinder section, 23d... Damper chamber, 23e... Communication hole, 23f... Throttle communication hole, 24... Main valve body ,2
4b...Piston part, 25...Main valve, 27...Valve body shaft, 29...Reset shaft, 30...Handle shaft, 31...Press lever, 32...Handle, 4
1... Link, 45... Lock mechanism section, 50...
First lock release mechanism section, 53, 72... Second lock release mechanism section, 61... Diversion valve, 62... Diversion channel, 66... Special tool, 67... Ventilation.
Claims (1)
リンダ部を有する弁本体と、該弁本体に上下動自
在に設けられた弁体軸と、該弁体軸と一体的に上
下動して該弁座に離着座し液流路の開閉用主弁を
構成する主弁体と、該主弁体の下部に該主弁体と
略一体的に上下動自在の状態で該シリンダ部に嵌
入されており、該シリンダ部の底部との間にダン
パ室を形成するピストン体と、前記シリンダ部に
設けられ該ピストン体が上動位置にあるとき該ダ
ンパ室をその上流側の液流路に連通する液流入用
流路と、該主弁の閉弁時に該ダンパ室内に貯溜さ
れた液体をその絞り度に応じて排出し該主弁の閉
弁動作にダンパ効果を付与せしめる液排出用絞り
流路と、前記弁本体に回動自在に設けられ該弁体
を開弁させるハンドルと、前記主弁が開弁状態に
あるときニードルが前記弁体軸に設けた係止体を
外方に拡張させて該弁体軸をロツクするロツク機
構部と、給液々面が所定位置に達したとき、前記
ニードルを変位させて前記ロツクを解除し前記主
弁の閉弁を行わせる第1のロツク解除機構部と、
定量給液終了時に操作者により作動され、前記ニ
ードルを逃げ変位させて前記ロツクを解除し前記
主弁の閉弁を行わせる第2のロツク解除機構部と
より構成してなる給液停止装置。 A valve body provided in the middle of the liquid supply pipe and having a valve seat and a bottomed cylindrical cylinder portion, a valve body shaft provided on the valve body so as to be movable up and down, and a valve body that is movable up and down integrally with the valve body shaft. a main valve body that is seated on and off the valve seat and constitutes a main valve for opening and closing the liquid flow path; and a cylinder portion that is movable up and down substantially integrally with the main valve body at the bottom of the main valve body. a piston body that is fitted into the cylinder part and forms a damper chamber between it and the bottom of the cylinder part; a liquid inlet flow path communicating with the main valve, and a liquid discharge that discharges the liquid stored in the damper chamber according to the degree of restriction when the main valve is closed, and imparts a damper effect to the closing operation of the main valve. a throttle flow path for the main valve, a handle rotatably provided on the valve body to open the valve body, and a needle that releases a locking body provided on the valve body shaft when the main valve is in the open state. a locking mechanism that expands in the opposite direction to lock the valve shaft; and a locking mechanism that displaces the needle to release the lock and close the main valve when the liquid supply surface reaches a predetermined position. 1, a lock release mechanism section;
A liquid supply stop device comprising a second lock release mechanism which is actuated by an operator at the end of quantitative liquid supply to displace the needle to release the lock and close the main valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9060083U JPS59196498U (en) | 1983-06-13 | 1983-06-13 | Liquid supply stop device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9060083U JPS59196498U (en) | 1983-06-13 | 1983-06-13 | Liquid supply stop device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59196498U JPS59196498U (en) | 1984-12-27 |
JPS6330719Y2 true JPS6330719Y2 (en) | 1988-08-16 |
Family
ID=30220536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9060083U Granted JPS59196498U (en) | 1983-06-13 | 1983-06-13 | Liquid supply stop device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59196498U (en) |
-
1983
- 1983-06-13 JP JP9060083U patent/JPS59196498U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59196498U (en) | 1984-12-27 |
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