JPH0313475B2 - - Google Patents
Info
- Publication number
- JPH0313475B2 JPH0313475B2 JP61061355A JP6135586A JPH0313475B2 JP H0313475 B2 JPH0313475 B2 JP H0313475B2 JP 61061355 A JP61061355 A JP 61061355A JP 6135586 A JP6135586 A JP 6135586A JP H0313475 B2 JPH0313475 B2 JP H0313475B2
- Authority
- JP
- Japan
- Prior art keywords
- clamping mechanism
- fastening
- flange
- locking
- clamp
- 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 - Lifetime
Links
- 230000007246 mechanism Effects 0.000 claims description 47
- 239000012530 fluid Substances 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 3
- 230000032258 transport Effects 0.000 description 8
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、LNG（液化天然ガス）やLPG（液化
プロパンガス）等の極低温の液化ガスを輸送する
流体荷役装置等に主として設けられる輸送管の緊
急切離し装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a transportation system mainly installed in a fluid cargo handling device etc. that transports extremely low-temperature liquefied gas such as LNG (liquefied natural gas) or LPG (liquefied propane gas). This invention relates to an emergency pipe disconnection device.
例えば、シーバースに接岸した石油タンカーか
ら石油を陸上の貯蔵タンクに荷揚げしたり、ある
いは貯蔵タンクから石油タンカーに荷積みする際
に使用される流体荷役装置においては、強風や波
浪の影響で石油タンカーの動きが大きくなつたよ
うな場合、そのままであると輸送管が破壊して大
きな損害を出すことから、輸送管に緊急切離し装
置を設け、その緊急切離し装置の作動で輸送管を
切り離してその破壊を防止するようにしている。
For example, in the fluid handling equipment used to unload oil from oil tankers docked at sea berths to onshore storage tanks, or to load oil from storage tanks onto oil tankers, strong winds and waves can cause the oil tanker to overflow. If the movement becomes large, if left unchecked, the transport pipe will break and cause major damage. Therefore, an emergency disconnection device is installed on the transport pipe, and the emergency disconnection device activates to disconnect the transport pipe and prevent its destruction. I'm trying to prevent it.
上記の緊急切離し装置として、２本の輸送管の
互いに接合されたフランジを挟着する複数のクラ
ンプを連結ロツドでＣ字状に連結した挟着機構
と、この挟着機構の一端と他端を開放自在に締結
する挟結機構とを備え、緊急時に締結機構を作動
させて挟着機構を開放し、クランプによるフラン
ジの挟着を解除するようにしたものが知られてい
る。（特開昭55−97590号公報）
ところが、上記緊急切離し装置の構成では、輸
送対象液がLPG等の極低温の液化ガスであるよ
うな場合、挟着機構を開放しても、フランジやク
ランプの部分に氷が付着していてフランジからク
ランプが外れず、したがつて輸送管が予定通り切
り離されないという事態が生ずる。 The above-mentioned emergency disconnection device includes a clamping mechanism in which a plurality of clamps that clamp the mutually joined flanges of two transport pipes are connected in a C-shape by a connecting rod, and one end and the other end of the clamping mechanism are connected. There is a known clamping mechanism that is releasably fastened, and in an emergency, the clamping mechanism is activated to open the clamping mechanism and release the clamp from clamping the flange. (Japanese Unexamined Patent Publication No. 55-97590) However, with the configuration of the emergency disconnection device described above, when the liquid to be transported is a cryogenic liquefied gas such as LPG, even if the clamping mechanism is opened, the flange or clamp The clamp cannot be removed from the flange due to ice adhering to the area, resulting in a situation where the transport pipe is not cut off as planned.
そこで、本出願人は、複数の各クランプに、挟
着機構の開放時にクランプをフランジから分離さ
せる分離用シリンダや分離用バネを設け、フラン
ジやクランプの部分に氷が付着していてもクラン
プを強制的に分離させ、フランジを確実に切り離
すことができる緊急切離し装置を案出した（実願
昭60−69788号、実願昭60−69789号）。 Therefore, the present applicant provided each of the plurality of clamps with a separation cylinder or a separation spring that separates the clamp from the flange when the clamping mechanism is opened, so that the clamp can be separated even if ice is attached to the flange or the clamp. We devised an emergency disconnection device that can reliably separate flanges by forcibly separating them (Utility Application No. 60-69788, Utility Application No. 60-69789).
ところが、上記緊急切離し装置は、分離用シリ
ンダや分離用バネ等の付属装置が多いことから機
構が比較的複雑で重量が重くなつてしまうという
不具合があつた。
However, the above-mentioned emergency disconnection device has a problem in that the mechanism is relatively complicated and heavy due to the large number of attached devices such as a separation cylinder and a separation spring.
本発明は、互いに接合されたフランジを挟着す
る複数のクランプを連結部材でＣ字状に連結した
挟着機構と、この挟着機構に付設された挟着機構
の一端と他端とを開放自在に締結する締結機構と
を具備した流体荷役装置等における緊急切離し装
置において、上記締結機構を、係止溝と押圧部と
を有し上記挟着機構の一端に枢軸で回動自在に設
けられた締結レバーと、この締結レバーの上記係
止溝に係止する係止軸を先端に有し上記挟着機構
の他端に止めピンにより回動自在に設けられた締
結ロツドと、上記締結レバーの係止溝に上記締結
ロツドの係止軸が係止した締結状態から締結レバ
ーを回動させて係止溝から係止軸を外させた後、
押圧部をフランジに当接させてその当接部分に挟
着機構の一端が近付くように挟着機構をフランジ
に対して移動させる開放用シリンダとから構成
し、かつ、上記各クランプは、挟着機構のフラン
ジに対する上記移動時に、支点軸を支点に回動し
てクランプを外方に動かすリンクを介してフラン
ジに取り付けることによつて上記の問題点を解決
したものである。
The present invention provides a clamping mechanism in which a plurality of clamps that clamp flanges joined to each other are connected in a C-shape by a connecting member, and one end and the other end of the clamping mechanism attached to this clamping mechanism are opened. In an emergency disconnection device for a fluid cargo handling device, etc., which is equipped with a fastening mechanism that can be fastened freely, the fastening mechanism is rotatably provided on one end of the clamping mechanism, which has a locking groove and a pressing part. a fastening lever, a fastening rod having a locking shaft at its tip that locks in the locking groove of the fastening lever, and rotatably provided at the other end of the clamping mechanism with a stop pin; and the fastening lever. After rotating the fastening lever to remove the locking shaft from the locking groove from the fastened state in which the locking shaft of the fastening rod is locked in the locking groove,
and an opening cylinder that moves the clamping mechanism relative to the flange so that the pressing part contacts the flange and one end of the clamping mechanism approaches the abutting part, and each of the above-mentioned clamps has a clamping mechanism. The above problem is solved by attaching the clamp to the flange via a link that rotates around a fulcrum shaft to move the clamp outward when the mechanism moves relative to the flange.
挟着機構の各クランプが互いに接合されたフラ
ンジを挟着し、締結ロツドが係止軸を係止溝に係
止させて締結レバーに係止され、上記挟着機構の
一端と他端とを締結している状態から、緊急にフ
ランジを切り離す必要が生じたような場合、開放
用シリンダを作動させる。この開放用シリンダの
作動によつて締結レバーが回動し、係止溝から係
止軸が外れて挟着機構によるフランジの挟着が解
除される。
Each clamp of the clamping mechanism clamps the flanges joined to each other, and the clamping rod locks the locking shaft in the locking groove and is locked to the clamping lever, thereby connecting one end and the other end of the clamping mechanism. When it is necessary to urgently separate the flange from the fastened state, the release cylinder is activated. The actuation of the opening cylinder rotates the fastening lever, the locking shaft is disengaged from the locking groove, and the clamping of the flange by the clamping mechanism is released.
開放用シリンダは、係止軸が係止溝から離脱
し、更に締結レバーの押圧部がフランジに当接し
た後においても作動を継続する。このため、締結
レバーの押圧部がフランジに当接した部分に挟着
機構の一端が近付けられることになり、その結
果、リンクが支点軸を支点にフランジに対して回
動し、各クランプを外方に動かしてフランジから
強制的に分離させる。 The release cylinder continues to operate even after the locking shaft is disengaged from the locking groove and the pressing portion of the fastening lever comes into contact with the flange. For this reason, one end of the clamping mechanism is brought closer to the part where the pressing part of the fastening lever contacts the flange, and as a result, the link rotates about the fulcrum shaft relative to the flange, releasing each clamp. direction to forcibly separate it from the flange.
添付図面は本発明の一実施例を示すもので、図
中、１と２は、輸送管３，４の管端に取り付けら
れるカツプリングである。これらのカツプリング
１，２の一側の端部には、外面を接合面５ａ，６
ａとなし、かつその接合面５ａ，６ａの裏側を外
周に近付くにしたがつて薄くなるテーパ状の傾斜
面５ｂ，６ｂとしたフランジ５，６が形成されて
いる。
The accompanying drawing shows an embodiment of the present invention, and in the drawing, reference numerals 1 and 2 indicate coupling rings attached to the ends of transport pipes 3 and 4. At one end of these coupling rings 1 and 2, the outer surfaces are connected to joint surfaces 5a and 6.
Flanges 5 and 6 are formed with tapered inclined surfaces 5b and 6b that become thinner as they approach the outer periphery on the back side of the joint surfaces 5a and 6a.
また、７は挟着機構であり、これは複数（図の
ものは３個）のクランプ８が複数（２個）の連結
部材９によつてＣ字状に連結されて構成されてい
る。クランプ８は、自由状態では上記フランジ
５，６の外径より大なる所定の径を有する円弧状
をなし、内方に撓まされて第２図のごとくフラン
ジ５，６を挟持する曲がり梁から成るもので、そ
の内周面には、接合状態のフランジ５，６の傾斜
面５ｂ，６ｂに合致するＶ字状の挟着溝８ａが形
成されていると共に、一方の端部側のクランプ８
の中間部位と自由端には、第１、第２取付け座１
０ａ，１０ｂがそれぞれ突出して連設され、か
つ、他方の端部側のクランプ８の自由端には第３
取付け座１２が突設されている。そして、上記の
各クランプ８は、フランジ５，６の互いに対向す
る位置に、内端部をそれぞれ支点軸１１により回
動自在に枢着されたリンク１４の外端部に連結軸
１３によつて回動自在に連結されている。 Further, reference numeral 7 denotes a clamping mechanism, which is composed of a plurality of clamps 8 (three in the figure) connected in a C-shape by a plurality of connecting members 9 (two). In a free state, the clamp 8 has an arcuate shape with a predetermined diameter larger than the outer diameter of the flanges 5 and 6, and is bent inward from the curved beam that clamps the flanges 5 and 6 as shown in FIG. A V-shaped clamping groove 8a that matches the inclined surfaces 5b, 6b of the joined flanges 5, 6 is formed on the inner peripheral surface thereof, and a clamp 8 on one end side is formed.
The first and second mounting seats 1 are provided at the intermediate portion and the free end of the
0a and 10b are provided in a row in a protruding manner, and a third clamp is provided at the free end of the clamp 8 on the other end side.
A mounting seat 12 is provided protrudingly. Each of the clamps 8 is connected by a connecting shaft 13 to an outer end of a link 14 whose inner end is rotatably pivoted by a fulcrum shaft 11 at the opposing positions of the flanges 5 and 6. Rotatably connected.
また、１５は締結機構である。この締結機構１
５は、締結ロツド１６と、締結レバー１７、及び
開放用シリンダ１８とから成る。締結ロツド１６
は、係止軸１９を左右の側面に突設したブロツク
２０を自由端に備え、根端部を挟着機構７の第３
取付け座１２に止めピン２１（図のものは、連結
軸１３も兼ねている）により回動自在に取り付け
られている。一方、締結レバー１７は、上記係止
軸１９が係止される係止溝１７ａと、押圧１７ｂ
とを備え、左右２枚、上記ブロツク２０の挿入間
隙Ｇをあけて一体に結合されており、押圧部１７
ｂを締結ロツド１６側に配して挟着機構７の第２
取付け座１０ｂに枢軸２２でこれも回動自在に取
り付けられている。開放用シリンダ１８は、ピス
トンロツド２３の先端を締結レバー１７にピン２
４で連結して、挟着機構７の第１取付け座１０ａ
に取付け軸２６で回動自在に取り付けられてい
る。 Further, 15 is a fastening mechanism. This fastening mechanism 1
5 consists of a fastening rod 16, a fastening lever 17, and a release cylinder 18. Fastening rod 16
is equipped with a block 20 at its free end, with a locking shaft 19 protruding from the left and right sides, and its root end is connected to the third part of the clamping mechanism 7.
It is rotatably attached to the mounting seat 12 with a stop pin 21 (the one shown also serves as the connecting shaft 13). On the other hand, the fastening lever 17 has a locking groove 17a in which the locking shaft 19 is locked, and a pressing force 17b.
The two pieces on the left and right are integrally connected with an insertion gap G between the blocks 20, and the pressing part 17
b is placed on the fastening rod 16 side, and the second part of the clamping mechanism 7
This is also rotatably attached to the mounting seat 10b with a pivot 22. The opening cylinder 18 connects the tip of the piston rod 23 to the fastening lever 17 with the pin 2.
4, the first mounting seat 10a of the clamping mechanism 7
It is rotatably attached to the mounting shaft 26.
ここで、係止軸１９と係止溝１７ａ、及び枢軸
２２の関係を第６図により説明すると、枢軸２２
は係止溝１７ａの底の部分に設けられており、係
止軸１９は、その中心Ｏを上記枢軸２２の中心、
つまり締結レバー１７の回動中心O1よりもフラ
ンジ５，６側に位置させて係止溝１７ａに係止す
るように構成されている。したがつて、係止溝１
７ａに対する係止軸１９の係止状態においては、
締結ロツド１６に加わる第６図矢印イ方向の力
は、締結レバー１７を閉方向（第６図において反
時計方向）に回動させるように作用することにな
り、係止軸１９が係止溝１７ａから勝手に滑り出
して挟着機構７の締結を解くことはない。なお、
図のものにおいては、係止軸１９の中心Ｏと締結
レバー１７の回動中心O1との離隔距離ｄは、３
mmに設定されている。 Here, the relationship between the locking shaft 19, the locking groove 17a, and the pivot shaft 22 will be explained with reference to FIG.
is provided at the bottom of the locking groove 17a, and the locking shaft 19 has its center O aligned with the center of the pivot shaft 22,
In other words, it is configured to be positioned closer to the flanges 5, 6 than the rotation center O1 of the fastening lever 17 and to be locked in the locking groove 17a. Therefore, the locking groove 1
In the locked state of the locking shaft 19 with respect to 7a,
The force applied to the fastening rod 16 in the direction of arrow A in FIG. 6 acts to rotate the fastening lever 17 in the closing direction (counterclockwise in FIG. 6), and the locking shaft 19 moves into the locking groove. It will not slip out from 17a and unfasten the clamping mechanism 7. In addition,
In the diagram, the distance d between the center O of the locking shaft 19 and the rotation center O1 of the fastening lever 17 is 3
It is set to mm.
締結レバー１７には、第２取付け座１０ｂから
シヤーピン２７が差し込まれ、締結レバー１７の
不測の自由回動が防止されている。また、上記締
結レバー１７の係止溝１７ａの近くには、ピン孔
２８が穿設されており、そのピン孔２８に抜け止
めピン２９を差し込むことにより、ブロツク２０
の係止軸１９の係止溝１７ａからの離脱を阻止で
きる構成とされている。２５は、ピン孔２８から
引き抜かれた抜け止めピン２９の紛失防止用の孔
である。 A shear pin 27 is inserted into the fastening lever 17 from the second mounting seat 10b to prevent the fastening lever 17 from freely rotating unexpectedly. Further, a pin hole 28 is bored near the locking groove 17a of the fastening lever 17, and by inserting a retaining pin 29 into the pin hole 28, the block 20 can be locked.
The structure is such that it is possible to prevent the locking shaft 19 from separating from the locking groove 17a. 25 is a hole for preventing loss of the retaining pin 29 pulled out from the pin hole 28.
なお、係止溝１７ａの締結ロツド１６側の内壁
を図のようにえぐりとつておくと、締結操作時係
止軸１９が係止溝１７ａの底近くに落ち込むの
で、弱い力で開放用シリンダ１８を縮小させて締
結状態とすることができるので、具合が良い。ま
た、第５図に示すように、締結ロツド１６を皿バ
ネ等のバネ部材３０によつて伸縮自在にしておく
と、LPG等の輸送開始時に、先に冷却されるフ
ランジ５，６と、そのフランジ５，６を介して後
から冷却されるクランプ８との間に温度差が生じ
て収縮寸法に差が出ても、上記バネ部材３０がそ
の差を吸収する。したがつて、挟着機構７による
フランジ５，６の挟着力が弱まることはない。 Note that if the inner wall of the locking groove 17a on the fastening rod 16 side is hollowed out as shown in the figure, the locking shaft 19 will fall near the bottom of the locking groove 17a during the fastening operation, so that the opening cylinder 18 can be opened with a weak force. It is convenient because it can be reduced and put into a fastened state. In addition, as shown in FIG. 5, if the fastening rod 16 is made elastic by a spring member 30 such as a disc spring, the flanges 5 and 6 which are cooled first and the Even if a temperature difference occurs between the flanges 5 and 6 and the clamp 8 which will be cooled later, resulting in a difference in shrinkage size, the spring member 30 absorbs the difference. Therefore, the clamping force between the flanges 5 and 6 by the clamping mechanism 7 does not weaken.
次に、上記のように構成された本発明の緊急切
離し装置の作用を説明する。 Next, the operation of the emergency disconnection device of the present invention configured as described above will be explained.
第２図は、緊急切離し装置のフランジ５，６の
締結状態を示すもので、この状態においては、締
結ロツド１６の係止軸１９が締結レバー１７の係
止溝１７ａに係止し、その中心Ｏを締結レバー１
７の回動中心O1のフランジ５，６側に位置させ
ているので、フランジ５，６の結合状態がそのま
ま安定して維持される。 FIG. 2 shows the state in which the flanges 5 and 6 of the emergency disconnection device are fastened together. In this state, the locking shaft 19 of the fastening rod 16 is locked in the locking groove 17a of the fastening lever 17, and its center Tighten lever 1
Since it is located on the side of the flanges 5 and 6 with respect to the center of rotation O1 of the flange 7, the connected state of the flanges 5 and 6 is maintained stably as it is.
何等かの事情でフランジ５，６を切り離す必要
が生じた場合、開放用シリンダ１８が作動してピ
ストンロツド２３を伸長させる。これにより締結
レバー１７は、シヤーピン２７を切断して枢軸２
２を中心に第６図の２点鎖線のように回動し、係
止溝１７ａを締結ロツド１６側に倒す。このた
め、それまで係止溝１７ａに係止していた係止軸
１９は、係止溝１７ａから抜け出して締結ロツド
１６による挟着機構７の締結を解除する。 If it becomes necessary to separate the flanges 5 and 6 for some reason, the opening cylinder 18 is actuated to extend the piston rod 23. As a result, the fastening lever 17 cuts the shear pin 27 and the pivot shaft 2
2 as the center, as shown by the two-dot chain line in FIG. 6, and tilt the locking groove 17a toward the fastening rod 16. Therefore, the locking shaft 19 that was previously locked in the locking groove 17a comes out of the locking groove 17a and releases the fastening of the clamping mechanism 7 by the fastening rod 16.
この際、各クランプ８は、撓み状態からフラン
ジ５，６の外径よりも大なる径の円弧状の自由状
態に復元しようとし、その復元力によりフランジ
５，６から分離する。また、開放用シリンダ１８
は、締結レバー１７の押圧部１７ｂがフランジ
５，６に当接した後においても締結レバー１７を
継続して回動させる。このため、挟着機構７は、
フランジ５，６に対する上記押圧部１７ｂの当接
部分Ｔに、挟着機構７の一端、つまり第２取付け
座１０ｂが近付くように、第１図の矢印ロのごと
く移動させられるが、この時、各リンク１４は、
支点軸１１を支点に起立する方向に回動し、各ク
ランプ８をフランジ５，６から強制的に分離させ
る。したがつて、クランプ８やフランジ５，６の
部分に氷が付着していても確実にフランジ５，６
を切り離すことができる。 At this time, each clamp 8 tries to restore from the bent state to a free state in the shape of an arc having a diameter larger than the outer diameter of the flanges 5 and 6, and is separated from the flanges 5 and 6 due to the restoring force. In addition, the opening cylinder 18
The fastening lever 17 continues to rotate even after the pressing portion 17b of the fastening lever 17 comes into contact with the flanges 5 and 6. For this reason, the clamping mechanism 7
One end of the clamping mechanism 7, that is, the second mounting seat 10b, is moved as shown by the arrow B in FIG. Each link 14 is
Each clamp 8 is forcibly separated from the flanges 5 and 6 by rotating in the direction of standing up about the fulcrum shaft 11. Therefore, even if ice is attached to the clamp 8 or the flanges 5 and 6, the flanges 5 and 6 can be reliably removed.
can be separated.
上記において、挟着機構７は、リンク１４を介
してカツプリング１に取り付けられているため、
開放状態において下に落下するようなことはな
い。 In the above, since the clamping mechanism 7 is attached to the coupling ring 1 via the link 14,
There is no chance of it falling down when it is open.
緊急切離し装置をフランジ５，６に装着するに
は、締結レバー１７を締結ロツド１６側に倒して
その係止溝１７ａに係止軸１９を挿入し、ブロツ
ク２０の抜け止めとなるようにピン孔２８に抜け
止めピン２９を差し込んだ後、開放用シリンダ１
８を作動させてピストンロツド２３を縮小させる
ことにより、締結レバー１７を開放用シリンダ１
８側に引き起こし、係止軸１９を係止溝１７ａの
底に移動させる。そして、第２取付け座１０ｂか
ら締結レバー１７にシヤーピン２７を差し込むと
ともに、抜け止めピン２９を抜き他の孔２５に差
し込んで装着を完了する。 To attach the emergency disconnection device to the flanges 5 and 6, tilt the fastening lever 17 toward the fastening rod 16 side, insert the locking shaft 19 into the locking groove 17a, and insert the pin hole to prevent the block 20 from coming off. After inserting the retaining pin 29 into the opening cylinder 1
8 to contract the piston rod 23, the engagement lever 17 is moved to the opening cylinder 1.
8 side to move the locking shaft 19 to the bottom of the locking groove 17a. Then, the shear pin 27 is inserted into the fastening lever 17 from the second mounting seat 10b, and the retaining pin 29 is removed and inserted into the other hole 25 to complete the mounting.
なお、締結レバー１７の押圧部１７ｂが当接す
るフランジ５，６の部分Ｔには、通常、傾斜面５
ｂ，６ｂを形成せずにノツチ等の押圧部１７ｂの
滑り防止手段を設ける。また、図のクランプ８
は、前記のように、自由状態では、フランジ５，
６よりも曲率半径が大となる可撓性の梁により形
成されているが、フランジ５，６と同一の曲率半
径のクランプ８を用いることもできる。 Note that the portion T of the flanges 5 and 6 that the pressing portion 17b of the fastening lever 17 comes into contact with usually has an inclined surface 5.
A slip prevention means for the pressing portion 17b such as a notch is provided without forming the portions b and 6b. Also, clamp 8 in the figure
As mentioned above, in the free state, the flanges 5,
Although the clamp 8 is formed of a flexible beam having a radius of curvature larger than that of the flanges 5 and 6, a clamp 8 having the same radius of curvature as the flanges 5 and 6 may also be used.
以上説明したように、本発明の緊急切離し装置
は、締結機構の開放用シリンダが、係止溝に対す
る係止軸の締結解除と、フランジからのクランプ
の強制分離の二つを兼ね、締結レバーを回動させ
て係止溝から係止軸を離脱させた後、締結レバー
の押圧部をフランジに当接させて更に力を加える
ことにより、クランプを周方向に動かし、リンク
を起立させてクランプをフランジから強制的に分
離する構成とされているので、装置全体を通じて
１台のシリンダでよく、構造が簡単で誤作動が少
なく、しかも氷の付着等に関係なく確実に輸送管
を切り離すことができるなどの長所がある。
As explained above, in the emergency disconnection device of the present invention, the opening cylinder of the fastening mechanism serves both of the functions of releasing the fastening shaft from the fastening groove and forcibly separating the clamp from the flange. After rotating the locking shaft to release it from the locking groove, the pressing part of the fastening lever is brought into contact with the flange and further force is applied to move the clamp in the circumferential direction, raising the link and tightening the clamp. Since it is configured to forcibly separate from the flange, only one cylinder is required for the entire device, the structure is simple, there are fewer malfunctions, and the transport pipe can be reliably separated regardless of ice buildup etc. There are advantages such as
第１図は本発明の緊急切離し装置の切離し状態
を示す正面図、第２図は締結状態を示す正面図、
第３図は第１図の−線の断面図、第４図は係
止溝の形状を示す略図、第５図は締結ロツドの取
付け構造を示す断面図、第６図は第３図の−
線の断面図である。
５，６……フランジ、７……挟着機構、８……
クランプ、９……連結部材、１１……支点軸、１
５……締結機構、１６……締結ロツド、１７ａ…
…係止溝、１７ｂ……押圧部、１８……開放用シ
リンダ、１９……係止軸、２１……止めピン、２
２……枢軸、Ｔ……当接部分。
FIG. 1 is a front view showing the emergency disconnection device of the present invention in a disconnected state, FIG. 2 is a front view showing the fastened state,
Fig. 3 is a sectional view taken along the - line in Fig. 1, Fig. 4 is a schematic diagram showing the shape of the locking groove, Fig. 5 is a sectional view showing the mounting structure of the fastening rod, and Fig. 6 is a - line in Fig. 3.
FIG. 5, 6...flange, 7... clamping mechanism, 8...
Clamp, 9... Connection member, 11... Fulcrum shaft, 1
5... Fastening mechanism, 16... Fastening rod, 17a...
...Latching groove, 17b...Press portion, 18...Release cylinder, 19...Latching shaft, 21...Lock pin, 2
2... Pivot, T... Contact part.
Claims (1)
クランプを連結部材でＣ字状に連結した挟着機構
と、この挟着機構に付設された挟着機構の一端と
他端とを開放自在に締結する締結機構とを具備し
た流体荷役装置等における緊急切離し装置におい
て、上記締結機構は、係止溝と押圧部とを有し上
記挟着機構の一端に枢軸で回動自在に設けられた
締結レバーと、この締結レバーの上記係止溝に係
止する係止軸を先端に有し上記挟着機構の他端に
止めピンにより回動自在に設けられた締結ロツド
と、上記締結レバーの係止溝に上記締結ロツドの
係止軸が係止した締結状態から締結レバーを回動
させて係止溝から係止軸を外させた後、押圧部を
フランジに当接させてその当接部分に挟着機構の
一端が近付くように挟着機構をフランジに対して
移動させる開放用シリンダとからなり、かつ、上
記各クランプは、挟着機構のフランジに対する上
記移動時に、支点軸を支点に回動してクランプを
外方に動かすリンクを介してフランジに取り付け
られたことを特徴とする流体荷役装置等における
緊急切離し装置。1 A clamping mechanism in which a plurality of clamps that clamp flanges that are joined to each other are connected in a C-shape by a connecting member, and one end and the other end of the clamping mechanism attached to this clamping mechanism are fastened so as to be openable. In an emergency disconnection device for a fluid cargo handling device or the like, the fastening mechanism includes a fastening lever that has a locking groove and a pressing part and is rotatably provided on one end of the clamping mechanism. and a fastening rod having a locking shaft at its tip that locks in the locking groove of the fastening lever and is rotatably provided at the other end of the clamping mechanism with a stop pin, and a locking rod for the fastening lever. After rotating the fastening lever to remove the locking shaft from the locking groove from the fastened state in which the locking shaft of the fastening rod is locked in the groove, the pressing part is brought into contact with the flange and the contact portion is pressed. and an opening cylinder that moves the clamping mechanism relative to the flange so that one end of the clamping mechanism approaches the flange, and each of the above-mentioned clamps rotates about a fulcrum shaft when the clamping mechanism moves relative to the flange. An emergency disconnection device for a fluid cargo handling device, etc., characterized in that the emergency disconnection device is attached to a flange via a link that moves the clamp outwardly.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61061355A JPS62220795A (en) | 1986-03-19 | 1986-03-19 | Emergency separator in fluid cargo gear, etc. |
| EP86303356A EP0202805B1 (en) | 1985-05-11 | 1986-05-02 | Quick release coupling device |
| DE8686303356T DE3662812D1 (en) | 1985-05-11 | 1986-05-02 | Quick release coupling device |
| US06/860,666 US4730850A (en) | 1985-05-11 | 1986-05-07 | Quick release coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61061355A JPS62220795A (en) | 1986-03-19 | 1986-03-19 | Emergency separator in fluid cargo gear, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62220795A JPS62220795A (en) | 1987-09-28 |
| JPH0313475B2 true JPH0313475B2 (en) | 1991-02-22 |
Family
ID=13168758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61061355A Granted JPS62220795A (en) | 1985-05-11 | 1986-03-19 | Emergency separator in fluid cargo gear, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62220795A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873168A (en) * | 1988-03-07 | 1989-10-10 | The Mead Corporation | Imaging system utilizing heat treatment |
-
1986
- 1986-03-19 JP JP61061355A patent/JPS62220795A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62220795A (en) | 1987-09-28 |
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|---|---|---|---|
| R250 | Receipt of annual fees |
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