JPS6127280B2 - - Google Patents
Info
- Publication number
- JPS6127280B2 JPS6127280B2 JP1847281A JP1847281A JPS6127280B2 JP S6127280 B2 JPS6127280 B2 JP S6127280B2 JP 1847281 A JP1847281 A JP 1847281A JP 1847281 A JP1847281 A JP 1847281A JP S6127280 B2 JPS6127280 B2 JP S6127280B2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- air suction
- suction port
- pipe
- passage
- 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 14
- 230000002265 prevention Effects 0.000 claims description 13
- 239000006260 foam Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Description
【発明の詳細な説明】
この発明は給油所等で使用される給油装置のよ
うな給液装置に通常付設される給液ノズルに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid supply nozzle that is normally attached to a liquid supply device such as a fuel supply device used at a gas station or the like.
通常オートノズルと呼ばれる自動給油停止ノズ
ルは被給油容器が一杯（いわゆる満タン）になる
とノズルの内蔵弁が自動的に閉じられるが、自動
閉弁機構がノズル内の油の流れに基づいて発生す
る負圧を利用する場合は、給油中負圧を補償する
ために空気吸込口から吸い込んだ空気がノズルを
貫通する油の中に混入して多量の泡が発生し、被
給油容器が満タンにならなくても、この泡を空気
吸込口から吸込むことによつて閉弁機構が作動し
給油が停止されてしまい、給油作業が円滑に行な
われない欠点がある。泡の発生は特に軽油の場合
に著しい。本発明は以上のような事情に鑑み、自
動停止機能を有する給液ノズルの筒先パイプに泡
の通過を阻止する泡通過防止体を付設し、さらに
泡通過防止体よりもノズル本体側に空気吸込口を
開口したものである。 Automatic refueling stop nozzles, usually called auto nozzles, automatically close the built-in valve of the nozzle when the refueling container becomes full (so-called full tank), but the automatic valve closing mechanism occurs based on the flow of oil in the nozzle. When using negative pressure, the air sucked in from the air suction port to compensate for the negative pressure during refueling mixes into the oil passing through the nozzle, creating a large amount of bubbles and causing the container to be refueled to become full. Even if this is not done, the valve-closing mechanism is activated by suctioning the bubbles through the air suction port, which causes the oil supply to stop, resulting in a disadvantage that the oil supply operation cannot be carried out smoothly. The generation of foam is particularly noticeable in the case of light oil. In view of the above-mentioned circumstances, the present invention has been developed by attaching a foam passage prevention body for preventing the passage of bubbles to the tip pipe of a liquid supply nozzle having an automatic stop function, and further providing air suction on the side of the nozzle body rather than the foam passage prevention body. It has its mouth open.
以下図示実施例を詳細に説明する。 The illustrated embodiment will be described in detail below.
１はノズル本体、２はこの本体１を貫通する流
路３は流路２を開閉する弁でスブリング４によつ
て常時閉弁方向に付勢されており、１４は弁３の
開閉操作レバーである。５はダイアフラム室で、
ダイアフラム６によつて上方の第１区分室（負圧
発生室）５Ａと下方の第２区分室５Ｂに分画され
ている。 Reference numeral 1 denotes a nozzle main body, 2 a flow path 3 passing through this main body 1, a valve for opening and closing the flow path 2, which is normally biased in the valve closing direction by a subring 4, and 14 an opening/closing operating lever for the valve 3. be. 5 is the diaphragm chamber,
The diaphragm 6 divides the chamber into an upper first compartment (negative pressure generating chamber) 5A and a lower second compartment 5B.
７は第１区分室５Ａとノズルの流路２の狭搾部
２′との連絡路でリング状溝７′を含む。 7 is a communication path between the first compartment 5A and the narrowed portion 2' of the flow path 2 of the nozzle, and includes a ring-shaped groove 7'.
８はノズル１の筒先パイプ、９は筒先パイプ８
内に配設された負圧補償管で、後端９′は連絡路
１０を介して連絡路７に連通するとともにリング
状溝７′を介して流路２の狭搾部２′に連通し、先
端は筒先パイプ８の先端近傍で、かつ後述する泡
通過防止体Ｃよりもノズル本体１に近い所で大気
に開口する空気吸込口９″となつている。 8 is the tip pipe of nozzle 1, 9 is the tip pipe 8
A negative pressure compensating pipe is disposed inside the pipe, and its rear end 9' communicates with the communication passage 7 through the communication passage 10 and also communicates with the narrowed part 2' of the flow passage 2 through the ring-shaped groove 7'. The tip is an air suction port 9'' that opens to the atmosphere near the tip of the pipe 8 and closer to the nozzle body 1 than the bubble passage prevention member C, which will be described later.
周知のように空気吸込口９″が大気に対して開
かれている時は第１図に示す如く弁３の開放時に
流路２を貫通する油が、流路２の狭搾部２′を流
れることによつてリング溝７′、連絡路７を介し
て第１の区分室５Ａ内に発生する負圧を空気吸込
口９″から負圧補償管９、連絡路１０を介して流
入する空気によつて補償阻止し、空気吸込口９″
が被給油容器（図示せず）たとえば自動車の燃料
タンクに通ずる給油管（給液管）Ｐ内を上昇する
油面によつて閉塞された時は、空気の吸込みが断
たれ第１区分室５Ａ内に発生した負圧が、ダイア
フラム６を上方へ引き上げる。 As is well known, when the air suction port 9'' is open to the atmosphere, the oil that passes through the flow path 2 when the valve 3 is opened, as shown in FIG. The negative pressure generated in the first compartment 5A by flowing through the ring groove 7' and the communication path 7 is replaced by the air flowing in from the air suction port 9'' through the negative pressure compensating pipe 9 and the communication path 10. Compensate by blocking the air inlet 9″
When a refueling container (not shown), for example, a refueling pipe (liquid supply pipe) P leading to an automobile fuel tank, is blocked by the rising oil level, air suction is cut off and the first compartment 5A The negative pressure generated within pulls the diaphragm 6 upward.
１１はこのダイアフラム６の上方変位によつて
弁開閉レバー１４の支点のピン１４′の位置を下
方へ変位させ、弁３がスプリング４の反発力によ
り閉止することを可能ならしめる閉弁機構であ
る。 Reference numeral 11 denotes a valve closing mechanism that displaces the pin 14', which is the fulcrum of the valve opening/closing lever 14, downward by the upward displacement of the diaphragm 6, and enables the valve 3 to be closed by the repulsive force of the spring 4. .
以上の構成および動作は公知のところであるの
で詳細な説明は省略する。 Since the above configuration and operation are well known, detailed explanation will be omitted.
Ｃは泡通過防止体で、先端パイプ８の先端外周
に固着された基部１２と、この基部１２から放射
状に外方へ伸びるように基部１２に植立形成さ
れ、可撓性並びに自己復元性を有した多数の刷毛
１３からなつている。 C is a bubble passage prevention body, which has a base 12 fixed to the outer periphery of the tip of the tip pipe 8, and is embossed on the base 12 so as to extend radially outward from this base 12, and has flexibility and self-restoring properties. It consists of a large number of brushes 13 with a brush.
泡通過防止体Ｃの第１の構成例を第２，３図に
示すが、環状の基部１２′に刷毛１３′が放射状に
植立されており、刷毛１３′の長さは、外径Ｄが
給液管Ｐの内径寸法よりも大きくなるようにあら
かじめ決められている。 A first configuration example of the bubble passage prevention body C is shown in FIGS. 2 and 3, in which brushes 13' are radially planted on an annular base 12', and the length of the brushes 13' is equal to the outer diameter D. is predetermined to be larger than the inner diameter of the liquid supply pipe P.
第４，５図に第２の構成例を示すが、ここでは
基部１２″は長尺の紐状であり、この基部１２″に
刷毛１３″が植立されている。すなわち、筒先パ
イプ８に、この基部１２″を螺旋状に密巻するこ
とになる。この方式の場合、筒先パイプ８の外径
が違つていても使用出来、又、刷毛１３″の必要
量を自由に選定出来る利点がある。又、筒先パイ
プ８への基部１２，１２′，１２″の固着方式は接
着剤による接着を有効に利用出来る。 A second configuration example is shown in FIGS. 4 and 5, in which the base 12'' is in the form of a long string, and a brush 13'' is attached to the base 12''. , this base portion 12'' is tightly wound spirally. This method has the advantage that it can be used even if the outer diameter of the tip pipe 8 is different, and that the required amount of brushes 13'' can be freely selected. The 12'' fixing method can effectively utilize adhesive bonding.
以上の構成において、給油中には空気吸込口
９″から吸込まれた空気は、連絡路１０，７を通
つて狭搾部２′から流路２を流れる油の中へ泡Ｂ
となつて混入するために、被給油容器さらには給
油管Ｐ内をこの泡Ｂが上昇して来るが、筒先パイ
プ８の先端に設けた泡通過防止体Ｃの刷毛１３が
撓むことによりその先端が給油管Ｐの内周にくま
なく接するので泡Ｂの上昇が食い止められる（た
だし、給油を行なうに従つて給油管Ｐを介して排
出される被給油容器内の空気（蒸気）は刷毛１３
を通過して大気へ放出される。）すなわち刷毛１
３を通過しようとした泡Ｂは刷毛１３によつて壊
され、泡Ｂに含まれていた空気（蒸気）だけが刷
毛１３を通過することになるので、空気吸込口
９″が泡Ｂを吸込むことによつて閉弁機構１１が
動作されることはない。 In the above configuration, during refueling, the air sucked in from the air suction port 9'' passes through the communication passages 10 and 7 and bubbles B into the oil flowing through the flow passage 2 from the narrowed part 2'.
As a result, the bubbles B rise inside the container to be refueled and the inside of the refueling pipe P, but as the brush 13 of the foam passage prevention body C provided at the tip of the pipe 8 is bent, the bubbles B are Since the tip touches the inner periphery of the oil supply pipe P, the rise of bubbles B is prevented (however, the air (steam) in the container to be refueled discharged through the oil supply pipe P as refueling is carried out by the brush 13
and is released into the atmosphere. ) i.e. brush 1
The bubbles B that tried to pass through the bubbles B are destroyed by the brush 13, and only the air (steam) contained in the bubbles B passes through the brush 13, so the air suction port 9'' sucks the bubbles B. Therefore, the valve closing mechanism 11 is not operated.
さらに給油を続けることによつて油面が上昇し
油面が刷毛１３を通過して空気吸込口９″を閉塞
した時には、閉弁機構１１が動作され、よつて弁
３が閉止されて給油が停止される。 When the oil level rises as refueling continues and the oil level passes through the brush 13 and blocks the air suction port 9'', the valve closing mechanism 11 is operated, and the valve 3 is closed and the refueling is stopped. will be stopped.
筒先パイプ８を給油パイプＰから抜き去ると刷
毛１３は復位する。 When the tip pipe 8 is removed from the oil supply pipe P, the brush 13 returns to its original position.
なお本発明は前記実施例に限定されることはな
い。 Note that the present invention is not limited to the above embodiments.
すなわち泡通過防止体は必ずしも刷毛によるも
のでなくとも良く、たとえば、スポンジや金網の
如き多孔性を有することにより泡の通過を阻止す
るとともに気体及び液体の通過を許容出来るもの
であれば良い。又、筒先パイプ８における基部１
２の取り付け部の直径を基部１２の厚さ分だけ細
く形成することにより、筒先パイプ８の外径と基
部１２の外径とを等しくし、筒先パイプ８の給油
管Ｐへの挿入を容易ならしめることも可能であ
る。 That is, the bubble passage prevention body does not necessarily have to be a brush, but may be any porous material such as a sponge or wire mesh, which can prevent the passage of bubbles and allow the passage of gas and liquid. In addition, the base 1 of the tube end pipe 8
By forming the diameter of the attachment part 2 thinner by the thickness of the base 12, the outer diameter of the tip pipe 8 and the outer diameter of the base 12 can be made equal, and the insertion of the tip pipe 8 into the oil supply pipe P can be made easier. It is also possible to tighten.
さらに、泡通過防止体Ｃに導電性のものを使用
することによつて被給液容器を筒先パイプ８、ノ
ズル本体１を介して接地することが出来、静電気
による爆発事故を有効に防止し得る。この場合の
刷毛１３には金属細線やカーボンフアイバーを利
用出来るものである。 Furthermore, by using a conductive material for the bubble passage prevention member C, the liquid container to be supplied can be grounded via the tip pipe 8 and the nozzle body 1, and explosion accidents caused by static electricity can be effectively prevented. . In this case, the brush 13 can be made of thin metal wire or carbon fiber.
以上詳述した如く構成したので、泡通過防止体
を通過して泡が上昇することはなく、よつて、空
気吸込口が泡で閉塞されることにより閉弁機構が
動作して給油が停止されることがなくなり、円滑
な給液操作が可能となるものである。 Since the structure is configured as detailed above, the bubbles do not pass through the bubble passage preventer and rise up. Therefore, when the air suction port is blocked by the bubbles, the valve closing mechanism operates and refueling is stopped. This eliminates the problem of liquid supply and enables smooth liquid supply operations.
第１図は泡通過防止体を備えたノズルの給液状
態を示す図で、第２図は泡通過防止体の構成例を
示し、第３図は第２図の断面図、第４図は泡通過
防止体の他の構成例を示す図で、第５図は第４図
の右側面を示す図である。
１……ノズル本体、２……貫通流路、２′……
狭搾部、３……弁、６……ダイアフラム、７，１
０……連絡路、８……筒先パイプ、９″……空気
吸込口、１２，１２′，１２″……基部、１３，１
３′１３″……刷毛、Ｃ……泡通過防止体、Ｂ……
泡。
Fig. 1 is a diagram showing the liquid supply state of a nozzle equipped with a bubble passage prevention body, Fig. 2 shows an example of the structure of the bubble passage prevention body, Fig. 3 is a sectional view of Fig. 2, and Fig. 4 is FIG. 5 is a diagram showing another example of the configuration of the bubble passage prevention body, and FIG. 5 is a diagram showing the right side of FIG. 4. 1...Nozzle body, 2...Through passage, 2'...
Narrowing part, 3... Valve, 6... Diaphragm, 7, 1
0...Connection path, 8...Tip pipe, 9''...Air suction port, 12, 12', 12''...Base, 13, 1
3'13''...Brush, C...Bubble passage prevention body, B...
foam.
Claims (1)
貫通流路に設けた狭搾部と、負圧によつて変位可
能なダイアフラムを収容したダイアフラム室と、
ノズル本体に接続された筒先パイプに設けた負圧
補償用空気吸込口とを有し、前記狭搾部とダイア
フラム室と空気吸込口とをそれぞれ連通したノズ
ルにおいて、前記筒先パイプの先端近傍に被給液
容器につながる給液管の管内面に周接し、泡の通
過を阻止するが気体及び液体の通過を許容する泡
通過防止体を付設するとともに、この泡通過防止
体よりもノズル本体側に前記空気吸込口を開口す
ることを特徴とする給液ノズル。1. A valve that opens and closes a flow path passing through the nozzle, a constriction portion provided in the through flow path, and a diaphragm chamber housing a diaphragm that can be displaced by negative pressure;
In the nozzle, which has a negative pressure compensating air suction port provided on a tube tip pipe connected to the nozzle main body, and in which the narrowed portion, the diaphragm chamber, and the air suction port are communicated with each other, the tube tip pipe is covered near the tip of the tube tip pipe. A bubble passage prevention body is attached to the inner surface of the liquid supply pipe connected to the liquid supply container and prevents the passage of bubbles, but allows the passage of gas and liquid. A liquid supply nozzle, characterized in that the air suction port is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1847281A JPS57133899A (en) | 1981-02-09 | 1981-02-09 | Liquid feeding nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1847281A JPS57133899A (en) | 1981-02-09 | 1981-02-09 | Liquid feeding nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57133899A JPS57133899A (en) | 1982-08-18 |
| JPS6127280B2 true JPS6127280B2 (en) | 1986-06-24 |
Family
ID=11972579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1847281A Granted JPS57133899A (en) | 1981-02-09 | 1981-02-09 | Liquid feeding nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57133899A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0186286U (en) * | 1987-11-30 | 1989-06-07 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6052295U (en) * | 1983-09-20 | 1985-04-12 | トキコ株式会社 | bench lily device |
-
1981
- 1981-02-09 JP JP1847281A patent/JPS57133899A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0186286U (en) * | 1987-11-30 | 1989-06-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57133899A (en) | 1982-08-18 |
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