JPS6242959Y2 - - Google Patents
Info
- Publication number
- JPS6242959Y2 JPS6242959Y2 JP1981019482U JP1948281U JPS6242959Y2 JP S6242959 Y2 JPS6242959 Y2 JP S6242959Y2 JP 1981019482 U JP1981019482 U JP 1981019482U JP 1948281 U JP1948281 U JP 1948281U JP S6242959 Y2 JPS6242959 Y2 JP S6242959Y2
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- liquid supply
- negative pressure
- discharge pipe
- supply nozzle
- 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 86
- 238000005192 partition Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 description 16
- 239000003350 kerosene Substances 0.000 description 9
- 239000002828 fuel tank Substances 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Description
【考案の詳細な説明】
本考案は給油所等の給液装置に用いられる給液
ノズルに関する。[Detailed Description of the Invention] The present invention relates to a liquid supply nozzle used in a liquid supply device at a gas station or the like.
従来より自動給液停止機構を備えた給液ノズル
が用いられている。この給液ノズルは、給液ノズ
ル本体の先端部に吐出パイプを備え、給液ノズル
本体内には、給液ホースからの油液を吐出パイプ
に導く液通路と、該液通路を開閉する弁機構と、
該弁機構を開閉操作するためのレバーと、一端が
可動隔壁で画成された負圧導入室に開口し他端が
前記吐出パイプの先端部近傍から外部に開口し中
間部が前記液通路途中に開口した連通管と、負圧
による可動隔壁の変位によつて前記弁機構を閉動
させる自動閉弁機構を備えたものとなつている。 Liquid supply nozzles equipped with an automatic liquid supply stop mechanism have conventionally been used. This liquid supply nozzle is equipped with a discharge pipe at the tip of the liquid supply nozzle body, and inside the liquid supply nozzle body is a liquid passage that guides the oil liquid from the liquid supply hose to the discharge pipe, and a valve that opens and closes the liquid passage. mechanism and
A lever for opening and closing the valve mechanism, one end of which opens into a negative pressure introduction chamber defined by a movable partition, the other end of which opens to the outside from near the tip of the discharge pipe, and an intermediate part that is in the middle of the liquid passage. The valve mechanism is equipped with a communication pipe opened to the inside, and an automatic valve-closing mechanism that closes the valve mechanism by displacement of a movable partition wall due to negative pressure.
この種の給液ノズルで自動車の燃料タンク等に
燃料を補給するときは、吐出パイプを燃料タンク
の給液口に挿入し、レバーを操作して弁機構を開
動させる。 When refueling an automobile fuel tank or the like with this type of liquid supply nozzle, the discharge pipe is inserted into the fuel tank's liquid supply port, and a lever is operated to open the valve mechanism.
これにより燃料が吐出パイプからタンク内に吐
出される。このとき、液通路の燃料が高速で流れ
るため、連通管の中間開口部には吸引力が発生す
るが、連通管の前記他端開口部は大気に開放され
ているため、連通管内は大気圧に保たれる。した
がつて、自動閉弁機構は作動せず。給液動作が続
けられる。 This causes fuel to be discharged from the discharge pipe into the tank. At this time, since the fuel in the liquid passage flows at high speed, a suction force is generated at the intermediate opening of the communication pipe, but since the opening at the other end of the communication pipe is open to the atmosphere, the inside of the communication pipe is at atmospheric pressure. is maintained. Therefore, the automatic valve closing mechanism does not operate. Liquid supply operation continues.
一方、給液作業中に燃料タンク内の燃料が満杯
になつて連通管の前記他端開口部が燃料で塞がれ
ると、連通管内に負圧が発生し、この負圧により
可動隔壁が変位して自動閉弁機構が作動し、弁機
構が閉止状態に切換えられて給液動作が自動的に
停止される。 On the other hand, when the fuel in the fuel tank becomes full during liquid supply work and the opening at the other end of the communication pipe is blocked by fuel, negative pressure is generated within the communication pipe, and this negative pressure displaces the movable bulkhead. Then, the automatic valve closing mechanism is activated, the valve mechanism is switched to the closed state, and the liquid supply operation is automatically stopped.
以上のように、この種の給液ノズルは、通常の
自動車等への燃料補給の場合には自動給液停止機
構が働くため便利であるが、例えば小型タンクロ
ーリ車の貯蔵タンク等に多量の燃料を補給するよ
うな場合には、上述の自動給液停止機構は特に必
要ではなく、しかも、液面の上方から燃料が吐出
されるため、液面に静電気が発生し易くなり、ま
た液面の波立ちによる燃料の気化が起こり易くな
るという問題が生じる。もちろん、これらの現象
は通常の自動車等への給液時にも起こるが、小型
タンクローリ車の貯蔵タンク等は容積が大きいた
め静電気発生率や燃料気化率が高くなり、しか
も、給液時間が長くなるから危険性が高くなる。 As mentioned above, this type of liquid supply nozzle is convenient because the automatic liquid supply stop mechanism works when refueling ordinary automobiles, etc. However, for example, when a large amount of fuel is stored in the storage tank of a small tank truck When replenishing fuel, the above-mentioned automatic fuel supply stop mechanism is not particularly necessary.Moreover, since fuel is discharged from above the liquid level, static electricity is likely to be generated on the liquid level, and A problem arises in that fuel is more likely to vaporize due to the ripples. Of course, these phenomena also occur when refueling ordinary automobiles, etc., but because the storage tanks of small tanker trucks have a large volume, the generation rate of static electricity and fuel vaporization rate are high, and the refueling time is longer. The risk increases from
こうした危険性を解消するためには、例えば、
前記吐出パイプの先端に、タンク等の底部まで届
くようなホースを接続し、いわゆるボトムチヤー
ジを行なうことが考えられる。 In order to eliminate these risks, for example,
It is conceivable to connect a hose that can reach the bottom of a tank or the like to the tip of the discharge pipe to perform so-called bottom charging.
しかし、この場合、ホース等で前記連通管の前
記他端開口部を塞ぐと自動閉弁機構が給液開始直
後に作動し、給液作業を円滑に行なえなくなると
いう問題が生じる。一方、ホース等で連通管の開
口部を塞がないようにして大気開放状態に保つよ
うにすると、該開口部から連通管内に吸引された
大気が該連通管から液通路内に吸引され、空気を
多量に含んだ燃料が吐出されることとなり、燃料
の泡立ち現象が起こり易くなる。この現象は燃料
の気化を促進させる危険性が高まるという問題が
生じる。 However, in this case, if the opening at the other end of the communication pipe is blocked with a hose or the like, the automatic valve closing mechanism will operate immediately after the start of liquid supply, causing a problem that the liquid supply operation cannot be carried out smoothly. On the other hand, if the opening of the communication pipe is kept open to the atmosphere by not blocking it with a hose, etc., the air sucked into the communication pipe from the opening will be sucked into the liquid passage from the communication pipe, and the air will be As a result, fuel containing a large amount of fuel is discharged, making it easy for the fuel to bubble. This phenomenon poses a problem in that it increases the risk of accelerating fuel vaporization.
本考案は上述の点に鑑み、自動給液停止機構を
働かせる自動給液と、小型タンクローリ車等への
いわゆるボトムチヤージとを何ら支障なく行なう
ことができる給液ノズルを提供することを目的と
するもので、給液ノズル本体には手動操作によつ
て可動隔壁を不作動状態にロツクするロツク部材
を設け、吐出パイプの先端部に着脱可能に取り付
けたボトムチヤージ用アダプタに、連通管の外部
開口部に接続される液吸引用導管を設けることに
より、ボトムチヤージ時には、ロツク部材によつ
て可動隔壁を不作動状態に保ち、しかも、連通管
には液を導いて該液を液通路に吸引させることに
より燃料等吐出液の泡立ちを防止するようにした
ことを特徴とする。 In view of the above-mentioned points, the object of the present invention is to provide a liquid supply nozzle that can perform automatic liquid supply using an automatic liquid supply stop mechanism and so-called bottom charge to small tank lorries, etc. without any problems. The liquid supply nozzle body is equipped with a locking member that manually locks the movable bulkhead in an inoperative state, and a bottom charging adapter detachably attached to the tip of the discharge pipe is connected to the external opening of the communication pipe. By providing a connected liquid suction conduit, the movable bulkhead is kept inactive by the locking member during bottom charging, and the liquid is introduced into the communication pipe and sucked into the liquid passage, allowing the fuel to be removed. It is characterized by preventing foaming of the ejected liquid.
以下に図面を参照して本考案の実施例を説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.
第１図ないし第３図は本考案の一実施例を示す
もので、図において１は給液ノズル本体、２は該
本体の先端部に取り付けられた吐出パイプであ
る。本体１には一端が給液ホース３内に接続され
且つ他端が吐出パイプ２内を経て外部に開口する
液通路４が設けられており、本体１内の液通路４
途中には該液通路４を開閉する弁機構５が設けら
れている。６は弁機構５を開閉操作するためのレ
バーで、枢支点７を中心として上方に引くと弁機
構５が開弁し、下方に戻すと弁機構５が閉弁す
る。８はレバーを作動位置に掛止するためのフツ
クである。 1 to 3 show an embodiment of the present invention, and in the figures, 1 is a liquid supply nozzle main body, and 2 is a discharge pipe attached to the tip of the main body. The main body 1 is provided with a liquid passage 4 whose one end is connected to the inside of the liquid supply hose 3 and whose other end opens to the outside through the inside of the discharge pipe 2.
A valve mechanism 5 for opening and closing the liquid passage 4 is provided in the middle. Reference numeral 6 denotes a lever for opening and closing the valve mechanism 5. When pulled upward about the pivot point 7, the valve mechanism 5 opens, and when returned downward, the lever mechanism 5 closes. 8 is a hook for locking the lever in the operating position.
本体１内には圧力作動室９が設けられており、
この圧力作動室９は可動隔壁１０によつて負圧導
入室９Ａと大気室９Ｂとに画成されている。負圧
導入室９Ａには連通管１１の一端１１Ａが開口し
ており、連通管１１の他端１１Ｂは吐出パイプ２
内の導管１２内を経て吐出パイプ２の先端部２Ａ
近傍から外部に開口している。そして第３図に示
すように、連通管１１の中間部には液通路４の途
中に開口するバキユーム管１１Ｃが設けられてい
る。ここでは、このバキユーム管１１Ｃは吐出パ
イプ２の後端部の継手部２Ｂに形成されて逆止弁
２Ｃの近傍に位置しているが、バキユーム管１１
Ｃは本体１自体に形成されていてもよい。 A pressure operating chamber 9 is provided within the main body 1,
This pressure working chamber 9 is defined by a movable partition wall 10 into a negative pressure introduction chamber 9A and an atmospheric chamber 9B. One end 11A of the communication pipe 11 is open to the negative pressure introduction chamber 9A, and the other end 11B of the communication pipe 11 is open to the discharge pipe 2.
The tip 2A of the discharge pipe 2 passes through the inner conduit 12.
It opens to the outside from the vicinity. As shown in FIG. 3, a vacuum tube 11C is provided in the middle of the communication tube 11 and opens in the middle of the liquid passage 4. Here, the vacuum pipe 11C is formed at the joint 2B at the rear end of the discharge pipe 2 and is located near the check valve 2C.
C may be formed on the main body 1 itself.
可動隔壁１０には、負圧導入室９Ａの負圧によ
る可動隔壁１０の変位によつて弁機構５を閉弁さ
せる自動閉弁機構１３が連結されている。この実
施例の自動閉弁機構１３について説明すると、弁
機構５と吐出パイプ２との間の本体１内にはガイ
ド１４が螺着され、該ガイド１４内には途中に傾
斜段部１５を有する貫通孔１６が穿設かれてい
る。 The movable partition wall 10 is connected to an automatic valve closing mechanism 13 that closes the valve mechanism 5 by displacement of the movable partition wall 10 due to the negative pressure in the negative pressure introduction chamber 9A. To explain the automatic valve closing mechanism 13 of this embodiment, a guide 14 is screwed into the main body 1 between the valve mechanism 5 and the discharge pipe 2, and the guide 14 has an inclined stepped portion 15 in the middle. A through hole 16 is bored.
また、該貫通孔１６の小径部１６Ａ内には支棒
１７が摺動自在に嵌合されている。そして、該支
棒１７の図中上方には孔１８，１８が半径方向に
形成され、更に、該支棒１７は本体１を一方の座
とするばね１９で図中上方に付勢されている。 Further, a support rod 17 is slidably fitted into the small diameter portion 16A of the through hole 16. Holes 18, 18 are formed in the radial direction in the upper part of the support rod 17 in the figure, and the support rod 17 is further urged upward in the figure by a spring 19 with the main body 1 as one seat. .
可動隔壁１０はばね２０で下方即ち大気室９Ｂ
側に付勢されており、可動隔壁１０の下面にはニ
ードル２１が一体的に固着して設けられている。
ニードル２１はその大径部２１Ａが支棒１７に形
成された大孔部１７Ａ内に嵌合し、更に、ニード
ル２１の小径部２１Ｂは支棒１７に形成された小
孔１７Ｂ内に嵌合されている。そして、支棒１７
の前記孔１８，１８内には球２２，２２が設けら
れ、該球２２，２２はガイド１４の傾斜段部１５
とニードル２１の傾斜肩部とに係合して支棒１７
の下方への移動を規制している。そして、該支棒
の図中下端７には前記レバー６が回動自在に枢着
されている。以上の如くして自動閉弁機構１３が
構成されている。 The movable bulkhead 10 is moved downward by the spring 20, that is, the atmospheric chamber 9B.
A needle 21 is integrally fixed to the lower surface of the movable partition wall 10.
The large diameter portion 21A of the needle 21 fits into the large hole 17A formed in the support rod 17, and the small diameter portion 21B of the needle 21 fits into the small hole 17B formed in the support rod 17. ing. And support rod 17
Balls 22, 22 are provided in the holes 18, 18 of the guide 14, and the balls 22, 22 are connected to the inclined stepped portion 15 of the guide 14.
and the inclined shoulder of the needle 21 to engage the support rod 17.
It restricts the downward movement of. The lever 6 is rotatably attached to the lower end 7 of the support rod in the figure. The automatic valve closing mechanism 13 is configured as described above.
本体１には、手動操作により可動隔壁１０を不
作動状態にロツクするロツク部材２３が設けられ
ている。このロツク部材２３の一端は負圧導入室
９Ａ内にあつて可動隔壁１０と対向しており、他
端は本体１外に突出している。このロツク部材２
３はばね２４で上方即ち可動隔壁１０から離れる
方向に付勢されている。 The main body 1 is provided with a locking member 23 that locks the movable bulkhead 10 in an inoperative state by manual operation. One end of this lock member 23 is located within the negative pressure introduction chamber 9A and faces the movable partition wall 10, and the other end projects outside the main body 1. This lock member 2
3 is biased upwardly, that is, in a direction away from the movable bulkhead 10, by a spring 24.
第２図に示すように、吐出パイプ２の先端部２
Ａにはボトムチヤージ用のアダプタ２５がカツプ
リング２６を介して着脱自在に取り付けられてい
る。このアダプタ２５は吐出パイプ２内の液通路
４に接続される液吐出用導管２７と、連通管１１
の開口部１１Ｂに接続される液吸引用導管２８と
を有しており、これら導管２７，２８は給油すべ
きタンク等の底部に届く程度の長さに設定されて
いる。これら導管２７，２８は弾性を有するホー
ス又は剛性を有するホースで作ることができる。
カツプリング２６の形式は図示のクランプ方式に
限定されず、例えば、ねじ込み方式のものであつ
てもよい。２９，３０はシール部材である。 As shown in FIG. 2, the tip 2 of the discharge pipe 2
A bottom charge adapter 25 is detachably attached to A via a coupling ring 26. This adapter 25 connects a liquid discharge conduit 27 connected to the liquid passage 4 in the discharge pipe 2 and a communication pipe 11.
A liquid suction conduit 28 is connected to the opening 11B of the tank, and these conduits 27 and 28 are set to have a length sufficient to reach the bottom of the tank or the like to be refueled. These conduits 27, 28 can be made of elastic or rigid hoses.
The type of the coupling ring 26 is not limited to the illustrated clamp type, but may be of a screw type type, for example. 29 and 30 are sealing members.
上記実施例において、例えば灯油の通常の給油
を行なうときは、アダプタ２５を吐出パイプ２の
先端部２Ａから外し、吐出パイプ２を給油すべき
タンク等の給油口に差し込み、支点７を中心とし
てレバー６を第１図中上方に引き上げてフツク８
に掛止させる。これにより、弁機構５が閉弁し、
灯油は給液ホース３から液通路４内を通つて吐出
パイプ２の先端からタンク内に吐出される。この
とき、液通路４を流れる灯油の吸い出し作用によ
り、連通管１１の空気はバキユーム管１１Ｃから
液通路４へと吸引されるが、連通管１１の開口部
１１Ｂが大気に開放しているため、負圧導入室９
Ａが負圧になることはない。したがつて、自動閉
弁機構１３は作動しない。 In the above embodiment, for example, when performing normal refueling with kerosene, remove the adapter 25 from the tip 2A of the discharge pipe 2, insert the discharge pipe 2 into the filler port of the tank or the like to be refueled, and then press the lever around the fulcrum 7. 6 upwards in Figure 1 and hook 8.
Let it hang on. As a result, the valve mechanism 5 closes,
Kerosene is discharged from the liquid supply hose 3 through the liquid passage 4 and from the tip of the discharge pipe 2 into the tank. At this time, due to the suction action of the kerosene flowing through the liquid passage 4, the air in the communication pipe 11 is sucked from the vacuum tube 11C to the liquid passage 4, but since the opening 11B of the communication pipe 11 is open to the atmosphere, Negative pressure introduction chamber 9
A never becomes negative pressure. Therefore, the automatic valve closing mechanism 13 does not operate.
給油中にタンク内が満杯になつて液位が連通管
１１の開口部１１Ｂに達すると、該開口部１１Ｂ
が塞がれるが、バキユーム管１１Ｃは吸引されつ
づけるため、負圧導入室９Ａは負圧となり、可動
隔壁１０が第１図中上方に変位してニードル２１
を上方に引き上げる。このため、球２２，２２の
ロツクが外れ、球２２，２２が支軸１７の内方に
変位してガイド１４の段部１５との係合が解か
る。このため、弁機構５のばね５Ａの力と液圧と
により支軸１７が下方に落されて弁機構５が閉弁
する。このときレバー６は衝撃によりフツク８か
ら外れて元の位置に復帰する。 When the tank becomes full during refueling and the liquid level reaches the opening 11B of the communication pipe 11, the opening 11B
However, since the vacuum tube 11C continues to be sucked, the negative pressure introduction chamber 9A becomes negative pressure, and the movable partition wall 10 is displaced upward in FIG.
pull upwards. As a result, the balls 22, 22 are unlocked, the balls 22, 22 are displaced inwardly of the support shaft 17, and the engagement with the stepped portion 15 of the guide 14 is released. Therefore, the support shaft 17 is dropped downward by the force of the spring 5A of the valve mechanism 5 and the hydraulic pressure, and the valve mechanism 5 is closed. At this time, the lever 6 comes off the hook 8 due to the impact and returns to its original position.
弁機構５が閉弁すると、バキユーム管１１Ｃで
の吸引力もなくなり、可動隔壁１０は元位置に復
帰し、支軸１７はばね１９により上方に押し上げ
られて第１図に示す初期状態に復帰する。 When the valve mechanism 5 closes, the suction force in the vacuum tube 11C also disappears, the movable partition wall 10 returns to its original position, and the support shaft 17 is pushed upward by the spring 19 to return to the initial state shown in FIG.
次に例えば小型タンクローリ車の貯蔵タンクに
灯油を給油するときは、吐出パイプ２の先端部２
Ａにアダプタ２５を取り付け、タンク内の底部近
傍若しくは液中にアダプタ２５を挿入してロツク
部材２３を押したままレバー６を引き上げる。 Next, for example, when refueling the storage tank of a small tank truck with kerosene, the tip of the discharge pipe 2
Attach the adapter 25 to A, insert the adapter 25 near the bottom of the tank or into the liquid, and pull up the lever 6 while pressing the lock member 23.
このとき、弁機構５が開弁して液通路４を灯油
が流れる結果、バキユーム管１１Ｃに負圧が発生
する。そして、連通管１１の開口部１１Ｂは直ち
に灯油により塞がれるため、負圧導入室９Ａ内は
瞬間的に負圧となるが、可動隔壁１０はロツク部
材２３によつて不作動状態に保たれる。したがつ
て、自動閉弁機構１３は作動せず、給油がつづけ
られる。この間、バキユーム管１１Ｃには吸引力
が発生しているため、タンク内の灯油が液吸引用
導管２８を通つて連通管１１内に吸引され、バキ
ユーム管１１Ｃから液通路４内へと循環する。こ
のため、液通路４内の灯油中に空気が混入せず、
したがつて、タンク内の灯油の泡立ちが起らなく
なる。このように、大型タンク内でのボトムチヤ
ージにおいて液の泡立ちが防止さるから、タンク
内での液の気化が起こりにくくなり、安全性が高
まる。 At this time, as a result of the valve mechanism 5 opening and kerosene flowing through the liquid passage 4, negative pressure is generated in the vacuum pipe 11C. Since the opening 11B of the communication pipe 11 is immediately blocked by kerosene, the inside of the negative pressure introduction chamber 9A momentarily becomes negative pressure, but the movable bulkhead 10 is kept in an inoperable state by the locking member 23. It will be done. Therefore, the automatic valve closing mechanism 13 does not operate, and refueling continues. During this time, since a suction force is generated in the vacuum pipe 11C, the kerosene in the tank is sucked into the communication pipe 11 through the liquid suction conduit 28, and circulates into the liquid passage 4 from the vacuum pipe 11C. Therefore, air is not mixed into the kerosene in the liquid passage 4,
Therefore, the kerosene in the tank does not bubble. In this way, since the liquid is prevented from bubbling during bottom charging within a large tank, vaporization of the liquid within the tank is less likely to occur, increasing safety.
ロツク部材２３から手を離して可動隔壁１０の
拘束を解くと、可動隔壁１０は直ちに負圧により
変位して自動閉弁機構１３が作動する。ロツク部
材２３はロツク位置（可動隔壁１０を不作動位置
に保つ位置）に保持するストツプ機構を備えてい
てもよいが、図示実施例の如くロツク部材２３を
手で押している間だけ可動隔壁１０をロツクする
構成の場合には、ロツク部材の復帰し忘れによつ
て必要時における自動給液停止機構の正規の作動
が行なわれなくなる虞れがなくなる。 When the locking member 23 is released to release the movable partition wall 10, the movable partition wall 10 is immediately displaced by negative pressure and the automatic valve closing mechanism 13 is activated. The locking member 23 may be provided with a stop mechanism for holding the movable bulkhead 10 in the locked position (a position that keeps the movable bulkhead 10 in the inoperative position), but as in the illustrated embodiment, the movable bulkhead 10 is only activated while the locking member 23 is manually pressed. In the case of a locking configuration, there is no possibility that the automatic liquid supply stop mechanism will not operate properly when necessary due to forgetting to return the lock member.
以上一実施例につき説明したが、本考案は上記
実施例の態様のみに限定されるものではなく、例
えば自動閉弁機構は第４図及び第５図に示すよう
に、レバー６を作動（引き上げ）状態に保つたま
ま、弁機構５の弁体５Ｂをローラ３１の係合解除
によつて閉弁させるタイプのものであつてもよ
い。この場合、ローラ操作部材３２も可動隔壁１
０に連結する。ここでは、負圧導入室９Ａは本体
１の側部に形成されているが、上記実施例と同様
に図示しない連通管に接続されている。なお、図
中第１図ないし第３図と共通の符号を付したもの
は上記実施例と同様の構成要素であり、この実施
例においては第２図に示したアダプタが用いられ
る。 Although one embodiment has been described above, the present invention is not limited to the embodiment described above. For example, the automatic valve closing mechanism operates (pulls up) the lever 6 as shown in FIGS. 4 and 5. ) state, the valve body 5B of the valve mechanism 5 may be closed by disengaging the roller 31. In this case, the roller operating member 32 also
Concatenate to 0. Here, the negative pressure introduction chamber 9A is formed on the side of the main body 1, but is connected to a communication pipe (not shown) as in the above embodiment. In the drawings, the same reference numerals as in FIGS. 1 to 3 indicate the same components as in the above embodiment, and the adapter shown in FIG. 2 is used in this embodiment.
以上の説明から明らかなように、本考案は、給
液ノズル本体には手動操作によつて可動隔壁を不
作動状態にロツクするロツク部材を設け、吐出パ
イプの先端部に着脱可能に取り付けたボトムチヤ
ージ用アダプタに、連通管の外部開口部に接続さ
れる液吸引用導管を設けたから、アダプタを外せ
ば通常の自動給液停止可能な給液を行なうことが
でき、アダプタを取り付けて小型タンクローリ車
等へのボトムチヤージを行なう時には、ロツク部
材によつて可動隔壁を不作動状態に保ち、しか
も、連通管には液を導いて該液を液通路に吸引さ
せることにより燃料等吐出液の泡立ちを防止でき
ることとなり、安全な給液が行なえることとな
る。 As is clear from the above description, the present invention has a locking member that manually locks the movable bulkhead in an inoperative state on the liquid supply nozzle body, and a bottom charger that is removably attached to the tip of the discharge pipe. The adapter is equipped with a liquid suction conduit that is connected to the external opening of the communication pipe, so by removing the adapter, you can perform normal liquid supply with automatic liquid supply stop, and by attaching the adapter to a small tank lorry vehicle, etc. When bottom charging is performed, the movable partition wall is kept in an inoperable state by a locking member, and the liquid is introduced into the communication pipe and sucked into the liquid passage, thereby preventing foaming of the discharged liquid such as fuel. Therefore, safe liquid supply can be performed.
さらに、このとき連通管とバキユーム管が液通
路と連通状態にあるため、連通管から吸引される
油液により清掃されることとなり、給液ノズルの
メンテナンス上にも効果を奏する。 Furthermore, since the communication pipe and the vacuum pipe are in communication with the liquid passage at this time, the oil liquid sucked from the communication pipe cleans the fluid supply nozzle, which is also effective in terms of maintenance of the liquid supply nozzle.
第１図は本考案の一実施例を示す給液ノズルの
本体側一部断面側面図、第２図は第１図に示す給
液ノズルのアダプタ側縦断面図、第３図は第１図
に示す給液ノズルの要部拡大断面図、第４図は本
考案の他の実施例を示す給液ノズルの本体側一部
断面側面図。第５図は第４図のＡ−Ａ線に沿う断
面図。
１……給液ノズル本体、２……吐出パイプ、３
……給液ホース、４……液通路、５……弁機構、
６……レバー、９Ａ……負圧導入室、１０……可
動隔壁、１１……連通管、１１Ｃ……バキユーム
管、１３……自動閉弁機構、２３……ロツク部
材、２５……アダプタ、２７……液吐出用導管、
２８……液吸引用導管。
Fig. 1 is a partially sectional side view on the main body side of a liquid supply nozzle showing an embodiment of the present invention, Fig. 2 is a longitudinal sectional view on the adapter side of the liquid supply nozzle shown in Fig. 1, and Fig. 3 is a side view of the liquid supply nozzle shown in Fig. 1. FIG. 4 is an enlarged cross-sectional view of the main part of the liquid supply nozzle shown in FIG. 4, and FIG. FIG. 5 is a sectional view taken along line A-A in FIG. 4. 1...Liquid supply nozzle body, 2...Discharge pipe, 3
...Liquid supply hose, 4...Liquid passage, 5...Valve mechanism,
6... Lever, 9A... Negative pressure introduction chamber, 10... Movable bulkhead, 11... Communication pipe, 11C... Vacuum tube, 13... Automatic valve closing mechanism, 23... Lock member, 25... Adapter, 27...liquid discharge conduit,
28...Liquid suction conduit.
Claims (1)
と、前記吐出パイプの先端部に着脱可能に取り付
けられるボトムチヤージ用アダプタとからなり、 前記給液ノズル本体は、一端が給液ホース内に
接続され他端が吐出パイプ内を経て外部に開口す
る液通路と、該液通路を開閉する弁機構と、該弁
機構を開閉操作するためのレバーと、一端が可動
隔壁で画成された負圧導入室に開口し、且つ他端
が前記吐出パイプの先端部近傍から外部に開口し
た連通管と、一端が前記液通路に開口し他端が前
記負圧導入室に開口して液通路内の油液の流動に
より負圧を発生するバキユーム管と、負圧による
可動隔壁の変位によつて前記弁機構を閉弁させる
自動閉弁機構と、手動操作により前記可動隔壁を
不作動状態にロツクするロツク部材とを有し、 前記アダプタは、吐出パイプ内の液通路に接続
される液吐出用導管と、前記連通管の前記他端開
口部に接続される液吸引用導管とを有しているこ
とを特徴とする給液ノズル。[Claims for Utility Model Registration] The liquid supply nozzle body is composed of a liquid supply nozzle body having a discharge pipe at its tip, and a bottom charging adapter that is detachably attached to the tip of the discharge pipe, and the liquid supply nozzle body has one end. A liquid passage connected to the liquid supply hose and whose other end opens to the outside through the inside of the discharge pipe, a valve mechanism for opening and closing the liquid passage, a lever for opening and closing the valve mechanism, and a movable bulkhead at one end. a communicating pipe that opens into the defined negative pressure introduction chamber and whose other end opens to the outside from near the tip of the discharge pipe; and one end which opens into the liquid passage and whose other end opens into the negative pressure introduction chamber. a vacuum tube that generates negative pressure by the flow of oil in the liquid passage; an automatic valve closing mechanism that closes the valve mechanism by displacement of the movable partition due to the negative pressure; and an automatic valve closing mechanism that closes the valve mechanism by displacement of the movable partition due to the negative pressure; a locking member that locks in an inoperative state; the adapter includes a liquid discharge conduit connected to a liquid passage in the discharge pipe; and a liquid suction conduit connected to the other end opening of the communication tube. A liquid supply nozzle comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981019482U JPS6242959Y2 (en) | 1981-02-14 | 1981-02-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981019482U JPS6242959Y2 (en) | 1981-02-14 | 1981-02-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57134298U JPS57134298U (en) | 1982-08-21 |
| JPS6242959Y2 true JPS6242959Y2 (en) | 1987-11-05 |
Family
ID=29817415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981019482U Expired JPS6242959Y2 (en) | 1981-02-14 | 1981-02-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6242959Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51108315A (en) * | 1975-03-20 | 1976-09-25 | Tokico Ltd | KYUEKINOZURU |
-
1981
- 1981-02-14 JP JP1981019482U patent/JPS6242959Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51108315A (en) * | 1975-03-20 | 1976-09-25 | Tokico Ltd | KYUEKINOZURU |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57134298U (en) | 1982-08-21 |
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