JPS627079B2 - - Google Patents
Info
- Publication number
- JPS627079B2 JPS627079B2 JP12682878A JP12682878A JPS627079B2 JP S627079 B2 JPS627079 B2 JP S627079B2 JP 12682878 A JP12682878 A JP 12682878A JP 12682878 A JP12682878 A JP 12682878A JP S627079 B2 JPS627079 B2 JP S627079B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- main valve
- negative pressure
- side passage
- liquid
- 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 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、例えばローリに給油する油槽所に用
いられる給液装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fluid supply device used, for example, in an oil depot for refueling lorries.
[従来技術]
従来タンクローリへガソリンを補給する場合、
ガソリンを多量に流す管に設けられた主弁は操作
するのに大きな力を要した。これを解決するため
に、主弁開閉弁を設け、これを軽いレバー操作で
開閉して主弁を開閉するようにした給液装置を本
出願人は発明し、特公昭57−29360号公報として
公告されたが、該給液装置は主弁の背部に設けた
液圧室を主弁開閉弁および陰圧発生部を設けた側
路を介して主弁を流出側に連結し、主弁開閉弁の
手動レバーによる開閉または陰圧発生部で発生し
た陰圧による主弁開閉弁の閉止により主弁の背圧
が変化して主弁が開閉するようになつており、陰
圧発生部で一定以上の陰圧を発生させるために側
路に一定以上の液を流す必要があり、そのため主
弁開閉弁の閉によりウオーターハンマーが起こり
得るなどの現象か発見され、又主弁をゆつくり閉
じようとすると側路を流れる流量を少なくする必
要があり、そのため陰圧発生部での負圧の発生が
困難となり、主弁開閉弁が閉じないことになる。[Prior art] When replenishing gasoline to a conventional tank truck,
The main valve, which was installed in a pipe through which a large amount of gasoline flowed, required a great deal of force to operate. In order to solve this problem, the present applicant invented a liquid supply device that is equipped with a main valve on-off valve, which is opened and closed by a light lever operation, and published in Japanese Patent Publication No. 57-29360. As announced, the liquid supply device connects the main valve to the outflow side through a side passage provided with a main valve opening/closing valve and a negative pressure generator, and connects a hydraulic chamber provided at the back of the main valve to the main valve opening/closing valve. The back pressure of the main valve changes and the main valve opens and closes by opening and closing the valve with a manual lever or by closing the main valve due to the negative pressure generated in the negative pressure generating part, and the back pressure of the main valve changes and the main valve opens and closes, which is constant in the negative pressure generating part. In order to generate this negative pressure, it is necessary to flow more than a certain amount of liquid into the side passage, and it has been discovered that water hammer may occur due to the closing of the main valve opening/closing valve. In this case, it is necessary to reduce the flow rate flowing through the side passage, which makes it difficult to generate negative pressure in the negative pressure generating section, and the main valve opening/closing valve will not close.
また例えば実公昭42−17383号公報には側路に
電磁弁を設け、液槽内の液位で電磁弁を制御する
給液装置が示されている。しかしながら、この種
のものでは、弁駆動用に外部からの電力供給用の
配線が必要であり、またガソリン等の引火性の液
では危険である。 For example, Japanese Utility Model Publication No. 42-17383 discloses a liquid supply device in which a solenoid valve is provided in a side passage and the solenoid valve is controlled by the liquid level in the liquid tank. However, this type of valve requires wiring for external power supply to drive the valve, and is dangerous when using flammable liquids such as gasoline.
[発明の目的]
したがつて本発明の目的は、主弁の開閉に電気
または空気等の外部エネルギーを使用せずに安価
でかつ危険性がなく、また陰圧の作用によつて主
弁を閉じる際に、主弁をゆつくりと閉じることが
でき、もつてウオーターハンマーを生ぜしめない
給液装置を提供するにある。[Object of the Invention] Therefore, the object of the present invention is to open and close the main valve without using external energy such as electricity or air, which is inexpensive and without danger, and which opens and closes the main valve by the action of negative pressure. To provide a liquid supply device which allows a main valve to be closed slowly and does not cause water hammer when closing.
[発明の構成]
本発明によれば、給液管の途中に主弁を設け、
該主弁の背部に流入口により主弁の流入側に連結
した液圧室を設け、該液圧室を主弁開閉弁を設け
た第1の側路を介して主弁の流出側に連結し、主
弁の流入側を側路弁および陰圧発生部を設けた第
2の側路を介して主弁の流出側に連結し、側路弁
に手動の開閉レバーを設け、陰圧発生部を陰圧管
および陰圧管が閉鎖されたときに作動して側路弁
を閉じる自動閉鎖装置に連結し、第1の側路に設
けた主弁開閉弁を第2の側路に設けた側路弁に連
動手段により連動させるようになつている。[Configuration of the Invention] According to the present invention, a main valve is provided in the middle of the liquid supply pipe,
A hydraulic pressure chamber connected to the inflow side of the main valve by an inlet is provided at the back of the main valve, and the hydraulic pressure chamber is connected to the outflow side of the main valve via a first side passage provided with a main valve opening/closing valve. The inflow side of the main valve is connected to the outflow side of the main valve through a second side passage provided with a side passage valve and a negative pressure generating section, and a manual opening/closing lever is provided on the side passage valve to generate negative pressure. A side where the main valve opening/closing valve provided in the first side passage is connected to a negative pressure pipe and an automatic closing device that operates to close the side passage valve when the negative pressure pipe is closed, and the main valve opening/closing valve provided on the first side passage is provided on the second side passage. It is designed to be interlocked with the road valve by an interlocking means.
[発明の作用効果]
したがつて、手動レバーにより側路弁を開くと
側路弁に連動して主弁開閉弁が開き、第2の側路
を液体が流れ、陰圧発生部で陰圧が発生するが被
給液タンクはまだ液位が低いので、陰圧管は大気
と連通しており、陰圧が自動閉鎖装置に伝わらな
い。側路弁に連絡して主弁開閉弁が開くことによ
り、第1の側路と連通する液圧室内の液は流出
し、その結果液圧室の圧力は低くなり、主弁は液
圧室の方に動き、給液管は開き、液はタンクに流
入する。[Operations and Effects of the Invention] Therefore, when the side passage valve is opened with the manual lever, the main valve opening/closing valve opens in conjunction with the side passage valve, liquid flows through the second side passage, and negative pressure is generated in the negative pressure generating section. occurs, but the liquid level in the supplied liquid tank is still low, so the negative pressure pipe is in communication with the atmosphere, and the negative pressure is not transmitted to the automatic closing device. By opening the main valve opening/closing valve in communication with the side passage valve, the liquid in the hydraulic pressure chamber communicating with the first side passage flows out, and as a result, the pressure in the hydraulic pressure chamber becomes low, and the main valve opens in the hydraulic pressure chamber. The liquid supply pipe opens and the liquid flows into the tank.
タンク内の液位が一定位置になり陰圧管が液で
閉塞されると、陰圧発生部に発生した陰圧は、自
動閉鎖装置に伝わり、該装置の作用によつて側路
弁および主弁開閉弁が閉じるので、液圧室の圧力
は上昇し、その結果、主弁は閉じる。その際、液
圧室の圧力の変化は液圧室への液体の流入量と流
出量との差によつて定まるので、その差を一定に
設定することにより主弁は、ゆつくりと閉じるこ
とができ、ウオーターハンマーが生じない。 When the liquid level in the tank reaches a certain level and the negative pressure pipe is blocked with liquid, the negative pressure generated in the negative pressure generating section is transmitted to the automatic closing device, and the side valve and main valve are closed by the action of this device. Since the on-off valve closes, the pressure in the hydraulic chamber increases, and as a result, the main valve closes. At this time, the change in pressure in the hydraulic pressure chamber is determined by the difference between the amount of liquid flowing into the hydraulic pressure chamber and the amount of liquid flowing out, so by setting that difference constant, the main valve can be closed slowly. , and water hammer does not occur.
以上のように、本発明によれば、主弁を開閉す
るのに第1の側路の液体の流れを制御することに
よつて、主弁を比較的ゆつくりと閉じることがで
きるので、この種の給液装置に対して極めて好適
である。また側路弁を連動する主弁開閉弁を設け
て第1の側路を開閉するので、主弁の背圧室から
流出する液を側路弁の開閉と同時に連通遮断で
き、したがつて主弁の開閉および閉弁の速度は、
背圧室の流入口から背圧室に流入する液量のみで
制御できる。そのために陰圧の発生に必要な液量
と、主弁の開閉に必要な液量とを別々に定めるこ
とができる。 As described above, according to the present invention, the main valve can be closed relatively slowly by controlling the flow of liquid in the first side passage when opening and closing the main valve. It is extremely suitable for seed liquid supply devices. In addition, since a main valve opening/closing valve that interlocks the side passage valve is provided to open and close the first side passage, the fluid flowing out from the back pressure chamber of the main valve can be communicated and cut off at the same time as the side passage valve is opened and closed. The opening and closing speed of the valve is
It can be controlled only by the amount of liquid flowing into the back pressure chamber from the inlet of the back pressure chamber. Therefore, the amount of liquid required to generate negative pressure and the amount of liquid required to open and close the main valve can be determined separately.
このように第1および第2の側路を設け、側路
弁と連動する主弁開閉弁を設けたので、主弁の開
閉速度の制御と陰圧の発生とを別個の液の流れで
行うことができ、陰圧発生により給液制御する給
液装置において好適な給液作業を行うことができ
る。 Since the first and second side passages are provided and the main valve opening/closing valve is provided in conjunction with the side passage valve, the opening/closing speed of the main valve and the generation of negative pressure are controlled by separate liquid flows. Therefore, suitable liquid supply work can be performed in a liquid supply device that controls liquid supply by generating negative pressure.
なお陰圧によつて作動する自動閉鎖装置は任意
の公知の技術を用いることができる。 Note that any known technology can be used as the automatic closing device operated by negative pressure.
[実施例]
以下この発明の一実施例を図面について説明す
る。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
第1図および第2図において、給液管1は、そ
の一端がタンク2に挿入可能になつており、そし
て、その他端は第3図に示される如き給液側に連
結され、給液管1の途中には主弁3が設けられて
いる。この主弁3は、ばね4により閉方向に付勢
されるとともに、中央部のスリーブ5が主弁案内
杆6により案内され、主弁3が円滑に移動するよ
うになつている。主弁3の背部には液圧室7が形
成され、この液圧室7は主弁3に設けられたシー
ル8により密閉されるとともに、流入量調整ねじ
9により流入量が調整される流入口10が設けら
れている。 In FIGS. 1 and 2, a liquid supply pipe 1 has one end that can be inserted into a tank 2, and the other end connected to the liquid supply side as shown in FIG. A main valve 3 is provided in the middle of the valve 1. The main valve 3 is biased in the closing direction by a spring 4, and a sleeve 5 in the center is guided by a main valve guide rod 6, so that the main valve 3 moves smoothly. A hydraulic chamber 7 is formed at the back of the main valve 3, and this hydraulic chamber 7 is sealed by a seal 8 provided on the main valve 3, and an inflow port whose inflow rate is adjusted by an inflow rate adjustment screw 9. 10 are provided.
給液管1には主弁3の上流側において側路入口
管11が連結され、主弁3の下流側において、側
路出口管12が給液管1に連通されている。側路
入口管11と側路出口管12の間には、自動閉鎖
装置13が設けられ、該自動閉鎖装置13は、ば
ね14により付勢された側路弁15を有してい
る。この側路入口管11から側路出口管12に至
る液の通路は第2の側路を構成している。 A side passage inlet pipe 11 is connected to the liquid supply pipe 1 on the upstream side of the main valve 3, and a side passage outlet pipe 12 is connected to the liquid supply pipe 1 on the downstream side of the main valve 3. A self-closing device 13 is provided between the bypass inlet pipe 11 and the bypass outlet pipe 12, and has a bypass valve 15 biased by a spring 14. The liquid passage from this side passage inlet pipe 11 to the side passage outlet pipe 12 constitutes a second side passage.
側路弁15を開閉するためのレバー16は、ケ
ース17に枢支された軸18に固定され、軸18
にはベルクランク19が固定され、レバー16に
よつてベルクランクが回動される。ベルクランク
19には、レバー16の回動を規制する当接片2
0,21が設けられ、又ベルクランク19の一端
は、ばね22およびボール23より成るクリツク
に係合可能な凹部24が設けられ、他端部には、
揺動レバー25が当接している。揺動レバー25
の中央部には、側路弁15を開閉するカムレバー
26の作動杆27が当接するとともに、揺動レバ
ー25の端部は摺動杆28に枢着されている。摺
動杆28は、ダイヤフラム29に固定された係止
杆30およびボール31により係止されている。
上記の構成により、レバー16を時計方向に回動
すると、ベルクランク19、揺動レバー25、カ
ムレバー26が順次回動して第1図から第2図の
状態に移り、側路弁15が開く。 A lever 16 for opening and closing the bypass valve 15 is fixed to a shaft 18 that is pivotally supported by a case 17.
A bell crank 19 is fixed to and rotated by a lever 16. The bell crank 19 has a contact piece 2 that restricts the rotation of the lever 16.
0, 21, and one end of the bell crank 19 is provided with a recess 24 that can engage with a click consisting of a spring 22 and a ball 23;
The swing lever 25 is in contact with it. Swing lever 25
An operating rod 27 of a cam lever 26 that opens and closes the bypass valve 15 comes into contact with the central portion of the lever 25 , and an end of the swinging lever 25 is pivotally connected to a sliding rod 28 . The sliding rod 28 is locked by a locking rod 30 and a ball 31 fixed to the diaphragm 29.
With the above configuration, when the lever 16 is rotated clockwise, the bell crank 19, the swing lever 25, and the cam lever 26 are sequentially rotated to shift from the state shown in FIG. 1 to the state shown in FIG. 2, and the bypass valve 15 opens. .
側路弁15の下流にはばね33により付勢され
たチエツク弁34が設けられ、チエツク弁34の
近傍には陰圧発生部35が設けられ、この陰圧発
生部35は、一方は陰圧管36を介してばね37
が設けられたダイヤフラム室38に伝えられると
ともに、他方はタンク2に開放する陰圧管39に
連結されている。陰圧管39の開放端部には、タ
ンク2内の液面が一定値以上に上昇した場合にそ
の液により浮上して陰圧管39を閉じる浮子弁が
設けられているが、この浮子弁は特公昭57−
29360号公報に開示されており、本願の要旨では
ないので図示は省略する。又陰圧管39の途中に
は機能検査用弁40および警報装置41が設けら
れ、弁40は流量計55からの信号により閉じる
ようにしてもよい。装置41は、第4図に示され
る如く、陰圧管39内の陰圧によつてダイヤフラ
ム42がばね43に抗して移動して、作動杆44
を介してスイツチ45を閉じてベルを鳴らしたり
する如く構成されている。 A check valve 34 biased by a spring 33 is provided downstream of the bypass valve 15, and a negative pressure generating section 35 is provided near the check valve 34. One side of this negative pressure generating section 35 is connected to a negative pressure pipe. Spring 37 through 36
The other side is connected to a negative pressure pipe 39 that opens to the tank 2. A float valve is provided at the open end of the negative pressure pipe 39. When the liquid level in the tank 2 rises above a certain value, a float valve is floated by the liquid and closes the negative pressure pipe 39. Kosho 57-
This is disclosed in Japanese Patent No. 29360, and illustration thereof is omitted since it is not the gist of the present application. Further, a function test valve 40 and an alarm device 41 may be provided in the middle of the negative pressure pipe 39, and the valve 40 may be closed by a signal from the flow meter 55. As shown in FIG. 4, in the device 41, a diaphragm 42 moves against a spring 43 due to negative pressure in a negative pressure tube 39, and an operating rod 44 is moved.
The switch 45 is closed via the switch 45 to ring a bell.
又前記主弁3の背部の液圧室7は側路出口管1
2と管46,47により連通され、これらの管4
6,47の間にはばね48により付勢され、側路
弁15に連動する主弁開閉弁49が設けられてい
る。この液圧室7から管46、主弁開閉弁49、
管47を通つて出口側路管12に至る液の通路は
第1の側路を構成している。この主弁開閉弁49
のステム60は側路弁15と係合するように伸び
ており、したがつてばね48とステム60とは主
弁開閉弁を側路弁に連動させる連動手段を構成し
ている。なお、50は揺動レバー25の支軸51
の移動を見るためにケース17に設けられたのぞ
き窓、52はベーパーリカバリー管、53は給液
管1出口の調節管54をかみ込むことなく支障な
く移動せしめるコイルばねのアース線、55は流
量計(第3図)、56は開閉弁、57は手許弁、
58は均圧管(第1図)である。ベーパーリカバ
リーをベーパーリカバリー管52に設けた場合、
タンク2の内圧が給油と共に上昇するが、その上
昇した圧力は均圧管58と通路59とを介してダ
イヤフラム室60に印加されるので、タンク2の
内圧如何にかかわらずチエツク弁34により発生
する陰圧によりダイヤフラム29は適正に作動す
る。したがつてタンク2の内圧の変化がダイヤフ
ラム29の作動に影響を与えない。 Further, the hydraulic pressure chamber 7 at the back of the main valve 3 is connected to the side passage outlet pipe 1.
2 through pipes 46 and 47, and these pipes 4
A main valve opening/closing valve 49 which is biased by a spring 48 and interlocks with the side passage valve 15 is provided between the valves 6 and 47 . From this hydraulic pressure chamber 7 to a pipe 46, a main valve opening/closing valve 49,
The liquid path through the tube 47 to the outlet side line 12 constitutes a first side line. This main valve opening/closing valve 49
The stem 60 extends to engage with the side valve 15, and thus the spring 48 and the stem 60 constitute interlocking means for interlocking the main valve on/off valve with the side valve. Note that 50 is a support shaft 51 of the swing lever 25.
52 is a vapor recovery tube, 53 is a ground wire of a coil spring that allows the adjustment tube 54 at the outlet of the liquid supply tube 1 to move without any trouble without getting caught, and 55 is a flow rate. (Figure 3), 56 is an on-off valve, 57 is a hand valve,
58 is a pressure equalizing pipe (Fig. 1). When a vapor recovery is provided in the vapor recovery pipe 52,
The internal pressure of the tank 2 increases with refueling, but since the increased pressure is applied to the diaphragm chamber 60 via the pressure equalizing pipe 58 and the passage 59, the negative effect generated by the check valve 34 is eliminated regardless of the internal pressure of the tank 2. The pressure causes the diaphragm 29 to operate properly. Therefore, changes in the internal pressure of the tank 2 do not affect the operation of the diaphragm 29.
又上記実施例において、側路管11,12を長
くして、側路弁15等の自動閉鎖装置13と主弁
3とを切離し、主弁3を支持部Sの近くに位置せ
しめてもよい。その作動に際し、先ずレバー16
を第1図から第2図の位置に時計方向に回動し、
クリツク22,23によりその位置に保持する。
すると、ベルクランク19、揺動レバー25、カ
ムレバー26を介して側路弁15が開き、側路入
口管11からの液体が、チエツク弁34を押し拡
いて側路出口管12内を流れる。そこで陰圧発生
部35で陰圧が発生しようとするが、陰圧管39
によりタンク2内の圧力即ち大気圧に連通されて
いるので、陰圧部には未だ陰圧は発生しない。側
路弁15に応じて主弁開閉弁49が開き、又側路
出口管12に流体が流れることにより、管47は
陰圧となつてその陰圧は管46を介して液圧室7
に伝わる。即ち管46は流入口10よりも大きい
ので液圧室7は陰圧となり、主弁3は案内管6に
より円滑に案内されて液圧室7側へ第2図の如く
移動する。したがつて給液管1は開かれてタンク
2内へ液が補給される。タンク内の液体が一定高
さに達すると、陰圧管39の口が閉ざされ、前記
陰圧発生部35に陰圧が発生し、この陰圧によつ
てダイヤフラム29がばね37に抗して湾曲し、
同時に係止杆30が移動してボール31と共に係
止していた摺動杆28およびその支軸51が第1
図において左方に移動し第5図の位置となる。こ
のとき側路弁15および主弁開閉弁49は、それ
ぞればね14およびばね48の力によつて閉じら
れる。その結果主弁3背部の液圧室7には陰圧が
作用しなくなり、主弁3はばね4により閉じられ
る。その際液圧室7には、流入口10を介して側
路入口管11から徐々に液体が供給されるので、
主弁3は低速度で閉じ、したがつて給液管1が急
激に閉じられず、ウオーターハンマー等の現象は
生じない。尚、通常は、第3図のプリセツト付流
量計55でタンク2に補給すべき液量をプリセツ
トしておき、一定の液体がタンクに補給された
ら、流量計55がその量を示すとともに、開閉弁
56に信号を送つて該弁56が閉じられ、タンク
に所定量の液体が補給され手許係57が閉じられ
て給液が終る。しかしながら、プリセツト量を間
違えた場合、流量計55および開閉弁56が故障
した場合、タンク2内に残液があり予定より早く
満タンとなつた場合等はタンク2が予定量を越え
て給液される恐れがあり、その際に、本発明の給
液装置が作動してタンク所定量の給液を確実なら
しめる。 In the above embodiment, the side pipes 11 and 12 may be lengthened to separate the automatic closing device 13 such as the side valve 15 from the main valve 3, and the main valve 3 may be located near the support part S. . When operating, first lever 16
Rotate clockwise from the position shown in Figure 1 to the position shown in Figure 2,
It is held in that position by clicks 22 and 23.
Then, the side passage valve 15 opens via the bell crank 19, the swing lever 25, and the cam lever 26, and the liquid from the side passage inlet pipe 11 pushes the check valve 34 wide and flows inside the side passage outlet pipe 12. Therefore, negative pressure is attempted to be generated in the negative pressure generating section 35, but the negative pressure tube 39
Since the pressure inside the tank 2 is communicated with the atmospheric pressure, no negative pressure is generated in the negative pressure section yet. The main valve opening/closing valve 49 opens in response to the side passage valve 15, and fluid flows into the side passage outlet pipe 12, so that the pipe 47 becomes negative pressure, and the negative pressure is transferred to the hydraulic chamber 7 via the pipe 46.
It is transmitted to That is, since the pipe 46 is larger than the inlet 10, the pressure in the hydraulic chamber 7 becomes negative, and the main valve 3 is smoothly guided by the guide tube 6 and moves toward the hydraulic pressure chamber 7 as shown in FIG. Therefore, the liquid supply pipe 1 is opened and the liquid is supplied into the tank 2. When the liquid in the tank reaches a certain height, the mouth of the negative pressure tube 39 is closed, and negative pressure is generated in the negative pressure generating section 35, and this negative pressure causes the diaphragm 29 to bend against the spring 37. death,
At the same time, the locking rod 30 moves and the sliding rod 28 that was locked together with the ball 31 and its support shaft 51 are moved to the first position.
It moves to the left in the figure and assumes the position shown in FIG. At this time, the side passage valve 15 and the main valve opening/closing valve 49 are closed by the force of the spring 14 and the spring 48, respectively. As a result, no negative pressure acts on the hydraulic pressure chamber 7 at the back of the main valve 3, and the main valve 3 is closed by the spring 4. At this time, liquid is gradually supplied to the hydraulic chamber 7 from the side channel inlet pipe 11 via the inlet 10, so that
The main valve 3 closes at a low speed, so the liquid supply pipe 1 is not closed suddenly, and phenomena such as water hammer do not occur. Normally, the amount of liquid to be replenished into the tank 2 is preset using the preset flowmeter 55 shown in FIG. A signal is sent to the valve 56 and the valve 56 is closed, a predetermined amount of liquid is replenished into the tank, and the hand holder 57 is closed to end the liquid supply. However, if you make a mistake in the preset amount, if the flow meter 55 and the on-off valve 56 malfunction, or if there is residual liquid in the tank 2 and it fills up earlier than planned, the tank 2 may exceed the planned amount. In such a case, the liquid supply device of the present invention operates to ensure that a predetermined amount of liquid is supplied to the tank.
[発明の効果]
本発明は以上説明したように、主弁の開閉に電
気または空気等の外部エネルギを使用せずに被供
給液体のエネルギを使用したから、配線、配管が
不要で安価であり、引火性の液体に使用しても危
険性が無い。[Effects of the Invention] As explained above, the present invention uses the energy of the supplied liquid to open and close the main valve without using external energy such as electricity or air, so wiring and piping are not required and the cost is low. , there is no danger when used with flammable liquids.
主弁開閉弁を設けた第1の側路と、陰圧発生部
及び側路弁を設けた第2の側路と、別々の側路を
設けたから、主弁の開閉速度に関係する第1の側
路を流れる液体の流量を適当に設定することによ
り、主弁の開閉速度をウオーターハンマーの生じ
ない値に設定できる。また第2の側路の流量は第
1の側路の流量と無関係であるから、第2の側路
の流量を自動閉鎖装置を作動させるに充分な陰圧
を発生させる量に設定でき、陰圧管が液面により
閉じられたときには直ちに、かつ確実に弁閉とす
ることができる。 Since separate side passages were provided, the first side passage provided with the main valve opening/closing valve and the second side passage provided with the negative pressure generating part and the side passage valve, the first side passage was provided with the main valve opening/closing speed. By appropriately setting the flow rate of the liquid flowing through the side passage, the opening/closing speed of the main valve can be set to a value that does not cause water hammer. Furthermore, since the flow rate in the second side passage is independent of the flow rate in the first side passage, the flow rate in the second side passage can be set to an amount that generates a negative pressure sufficient to operate the automatic closing device. When the pressure pipe is closed by the liquid level, the valve can be immediately and reliably closed.
主弁開閉弁と側路弁とを連動手段により連動さ
せたので、手動レバーを操作して、側路弁を開け
ば、主弁開閉弁も自動的に開き、また側路弁を閉
じれば主弁開閉弁も自動的に閉じられ、主弁開閉
操作が容易でかつ確実である。 The main valve on-off valve and the side passage valve are linked by an interlocking means, so when you operate the manual lever and open the side passage valve, the main valve on-off valve automatically opens, and when you close the side passage valve, the main valve on-off valve automatically opens. The valve opening/closing valve is also automatically closed, making opening/closing the main valve easy and reliable.
第1図は本発明の給液装置の一実施例の縦断面
図で主弁が閉じた状態を示す図、第2図は同縦断
面図で主弁が開いた状態を示す図、第3図は使用
状態の説明図、第4図は給液装置の警報装置部の
図、第5図は主弁開閉弁が閉じた所を示す部分説
明図である。
1……給液管、2……タンク、3……主弁、1
1……側路入口管、12……側路出口管、13…
…自動閉鎖装置、15……側路弁、16……レバ
ー、7……液圧室、10……流入口、35……陰
圧発生部、36,39……陰圧管、48……ば
ね、49……主弁開閉弁、60……ステム。
FIG. 1 is a longitudinal cross-sectional view of one embodiment of the liquid supply device of the present invention, showing the main valve in a closed state, FIG. 2 is a longitudinal cross-sectional view of the same, showing the main valve in an open state, and FIG. FIG. 4 is an explanatory diagram of the state of use, FIG. 4 is a diagram of the alarm device section of the liquid supply device, and FIG. 5 is a partial explanatory diagram showing the main valve opening/closing valve closed. 1...Liquid supply pipe, 2...Tank, 3...Main valve, 1
1...Sideway inlet pipe, 12...Sideway outlet pipe, 13...
... Automatic closing device, 15 ... Side channel valve, 16 ... Lever, 7 ... Liquid pressure chamber, 10 ... Inflow port, 35 ... Negative pressure generation section, 36, 39 ... Negative pressure pipe, 48 ... Spring , 49... Main valve opening/closing valve, 60... Stem.
Claims (1)
流入口により主弁の流入側に連結した液圧室を設
け、該液圧室を主弁開閉弁を設けた第1の側路を
介して主弁の流出側に連結し、主弁の流入側を側
路弁および陰圧発生部を設けた第2の側路を介し
て主弁の流入側に連結し、側路弁に手動の開閉レ
バーを設け、陰圧発生部を陰圧管および陰圧管が
閉鎖されたときに作動して側路弁を閉じる自動閉
鎖装置に連結し、第1の側路に設けた主弁開閉弁
を第2の側路に設けた側路弁に連動手段により連
動させたことを特徴とする給液装置。1. A main valve is provided in the middle of the liquid supply pipe, a hydraulic chamber is connected to the inflow side of the main valve by an inlet at the back of the main valve, and the hydraulic chamber is connected to a first valve equipped with a main valve on/off valve. The main valve is connected to the outflow side of the main valve via a side passage, and the inflow side of the main valve is connected to the inflow side of the main valve via a second side passage provided with a side passage valve and a negative pressure generating section. A main valve provided in the first side passage, wherein the valve is provided with a manual opening/closing lever, and the negative pressure generating part is connected to the negative pressure pipe and an automatic closing device that operates when the negative pressure pipe is closed to close the side passage valve. A liquid supply device characterized in that an on-off valve is interlocked with a side passage valve provided in a second side passage by an interlocking means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12682878A JPS5555992A (en) | 1978-10-17 | 1978-10-17 | Liquid feeder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12682878A JPS5555992A (en) | 1978-10-17 | 1978-10-17 | Liquid feeder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5555992A JPS5555992A (en) | 1980-04-24 |
JPS627079B2 true JPS627079B2 (en) | 1987-02-14 |
Family
ID=14944916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12682878A Granted JPS5555992A (en) | 1978-10-17 | 1978-10-17 | Liquid feeder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5555992A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4336830A (en) * | 1980-04-28 | 1982-06-29 | Healy James W | Vapor recovery jet pump |
JPS59174500A (en) * | 1984-02-06 | 1984-10-02 | 株式会社東京タツノ | Liquid feeder |
-
1978
- 1978-10-17 JP JP12682878A patent/JPS5555992A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5555992A (en) | 1980-04-24 |
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