CN105351599A - Emergent release device for ultralow temperature fluid handling equipment - Google Patents
Emergent release device for ultralow temperature fluid handling equipment Download PDFInfo
- Publication number
- CN105351599A CN105351599A CN201510724353.0A CN201510724353A CN105351599A CN 105351599 A CN105351599 A CN 105351599A CN 201510724353 A CN201510724353 A CN 201510724353A CN 105351599 A CN105351599 A CN 105351599A
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- China
- Prior art keywords
- valve
- push pedal
- handling equipment
- separating device
- low temperature
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D9/00—Apparatus or devices for transferring liquids when loading or unloading ships
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses an emergent release device for ultralow temperature fluid handling equipment. The emergent release device comprises an upper ball valve, a lower ball valve, a valve on-off mechanism and a locking mechanism, wherein the valve on-off mechanism drives the two ball valves to be turned on or off synchronously, and the locking mechanism is arranged on the outer edge of the butt-joint faces of the two ball valves and used for controlling the two ball valves to be locked or released. The valve on-off mechanism comprises a four-connecting-rod mechanism installed between valve rods of the two ball valves and a driver installed on a valve rod base on one side of the two ball valves. According to the emergent release device, the valves can be independently turned off on the condition that a handling arm is not adopted, the sealing performance of the valves is good, and the valve on-off mechanism is simple in structure and convenient to operate; and when the two ball valves are released, the handling arm will not be hooked, and the accident that the handling arm collapses is eradicated.
Description
Technical field
The present invention relates to a kind of critical component of equipment for liquid transportation, particularly a kind of very low temperature flow materials handling equipment emergency separating device.
Background technique
Completed the transmission of liquid medium between shipment cargo ship and harbour by fluid assembly and disassembly arm, fluid assembly and disassembly arm is the critical component on harbour, loads and unloads for docking with boats and ships on port and pier.And emergency separating device is the vitals of fluid assembly and disassembly arm, for breaking when anchor chain, boats and ships drift about away from berth, catch fire, the dangerous situations such as storm that happen suddenly, loading arm can depart from fast with groove ship.And general emergency separating device is when running into the uncertain reasons such as stormy waves, cargo ship can float from normal operating range, although loading arm has certain extension distance, but when exceeding this extension distance, will pull phenomenon, general pullling can damage transfusion apparatus, make conveying leak of liquid, cause sea pollution, serious meeting makes liquid handling arm collapse, and causes serious accident.
Depart from fast to make loading arm and groove ship, existing as the patent No. be the low temperature fluid handling equipment peculiar to vessel proposed in the patent document of 201310041938.3, strut spring assembly and realize left and right anchor ear by arranging between left and right anchor ear and the upstream valve body of lower ball valve and open fast, upper and lower ball valve is separated, but after the spring assembly Long-Time Service adopted, its elasticity reduces, and reduces the reliability of disengaging.And pull in the quick detach procedure of loading arm to solve, cause the problem that valve body leaks, by increasing by a stock on cylinder piston rod in the existing special small-bore ejection escape valve of ultralow temperature (patent No. is 201320061046.5) as a kind of in patent, promote overhead cam outside upper ball valve and lower ball valve body and lower cam rotates simultaneously simultaneously, on realizing, lower ball valve is closed simultaneously, but because the arm of force of this setting is shorter, the moment of operation of oil cylinde is caused to increase, require all higher to the accuracy of manufacturing of cam and installation precision simultaneously, valve can not shut completely or switch degree is inconsistent phenomenon occurs to have error just may cause a little.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, propose a kind of very low temperature flow materials handling equipment emergency separating device, this release unit achieves valve switch and departs from valve and separate mutually, ensure that valve closing No leakage, good seal performance, it is quick, firm that valve departs from.
For achieving the above object, the technical solution used in the present invention is: a kind of very low temperature flow materials handling equipment emergency separating device, described emergency separating device comprises, lower two ball valves, drive two ball valve synchronous switches valve switch mechanism and be located in two ball valve interface outer rims for controlling the locking mechanism that two ball valves are mutually locked or departed from, described is upper, lower two ball valves include the valve body with inner chamber, be plugged in the valve rod in described body cavity, be positioned at the valve rod base for installing described valve rod outside described valve body, described valve switch mechanism comprises the quadratic crank mechanism be arranged between two ball-valve valve rods and the driver be arranged in two ball valves on the valve rod base of side, described quadratic crank mechanism comprises and is arranged on upper connecting rod on upper valve rod and lower valve rod and lower link respectively, be connected to two push rods between described upper connecting rod and described lower link, the end of the same side of two described push rods is all removably connected on the end bearing pin of described upper connecting rod or described lower link, the output terminal of described driver is connected on described upper connecting rod or described lower link.
Preferably, described locking mechanism comprises anchor ear, check lock lever and push-and-pull assembly, described anchor ear, check lock lever, push-and-pull assembly forms one and is around in, lower two valve body interface outer rims close wedge ring, described anchor ear at least comprises the first clamping part be fixedly mounted in described interface outer rim, the second clamping part be hinged with described first clamping part, described second clamping part can be clamped in and described interface outer rim closes on wedge ring, in the outer rim that described check lock lever is fixedly mounted on described interface and end, one end and described first clamping part be hinged, described push-and-pull assembly comprises and can rotatably be arranged on push pedal on described second clamping part by horizontal rotary, level is fixedly mounted on the cam in described push pedal, the swingle that can rotate around Pivot Point Center line in described push pedal is arranged on by bearing pin, described swingle be located at described cam by end, paracentral one end, the other end end of described check lock lever can be kept out and is separated in described push pedal or with described push pedal.
Further preferably, described locking mechanism also comprises the disengaging oil cylinder for driving described push pedal to rotate be arranged on described second clamping part, and the output terminal of described disengaging oil cylinder is fixedly connected in described push pedal.
Further preferably, described push pedal comprises push pedal and lower push pedal, and the described the other end end of described check lock lever is provided with the cutting graftage part that can be plugged between described upper push pedal and described lower push pedal or to be separated with described push pedal.
Further preferably, described locking mechanism also comprises the shear pin fixed for both be located between described check lock lever and described push pedal, and when described shear pin fracture, described push pedal can be separated with described check lock lever.
Further preferably, the valve body of two ball valves is also provided with outward extending projection, when the described swingle in described push-and-pull assembly contacts with described projection, described swingle rotates, and described push-rod assembly drives described second clamping part on described anchor ear to depart from valve body.
Preferably, one end of described driver is connected on described upper valve rod seat, and the output terminal of described driver is connected on described upper connecting rod, the downside end of two described push rods all offers the draw-in groove that can be fastened on respectively on end, described lower link one end.
Preferably, described quadratic crank mechanism is parallelogram hinge linkage.
Preferably, the described interface of two ball valves is all installed with the adpting flange connected for both.
Further preferably, described adpting flange is cone-shaped flange shaping with upper valve body, lower valve body respectively.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages: very low temperature flow materials handling equipment emergency separating device of the present invention, by arranging valve switch mechanism and locking mechanism, achieve valve switch to depart from valve and separate action, ensure that when also realizing in the no situation of loading arm closing valve separately, and adopt quadratic crank mechanism to realize the switch of valve, its structure is simple, the operational torque of oil cylinder is little, can guarantee that the switch degree of two valves is consistent simultaneously, valve can shut completely, in case valve body leaks, and have employed anchor ear, the locking mechanism that check lock lever and push-and-pull assembly are formed, its accuracy of manufacturing requires low, reliability is high.
Accompanying drawing explanation
Accompanying drawing 1 is the front view of very low temperature flow materials handling equipment emergency separating device of the present invention;
Accompanying drawing 2 is the plan view of very low temperature flow materials handling equipment emergency separating device of the present invention;
Accompanying drawing 3 is the left view of very low temperature flow materials handling equipment emergency separating device of the present invention;
Accompanying drawing 4 is the stereogram of very low temperature flow materials handling equipment emergency separating device of the present invention;
Wherein: 1, upper ball valve; 10, upper valve body; 11, upper valve rod; 12, upper valve rod seat;
2, lower ball valve; 20, lower valve body; 21, lower valve rod; 22, lower valve rod seat;
3, valve switch mechanism; 30, upper connecting rod; 31, lower link; 32, push rod; 33, Valve controlling oil cylinder;
4, locking mechanism; 40, anchor ear; 41, check lock lever; 42, push pedal; 43, cam; 44, swingle; 45, oil cylinder is departed from;
5, projection.
Embodiment
Below in conjunction with accompanying drawing, technological scheme of the present invention is further elaborated.
See shown in Fig. 1 to Fig. 4, a kind of very low temperature flow materials handling equipment emergency separating device, comprise upper and lower two ball valves, drive the valve switch mechanism 3 of two ball valve synchronous switches and be located in two ball valve interface outer rims for controlling the locking mechanism 4 that two ball valves are mutually locked or departed from.By valve switch mechanism 3 and locking mechanism 4 are separated, make in the no situation of loading arm, also can realize closing valve operation, in case fluid is leaked, here, by the HYDRAULIC CONTROL SYSTEM valve switch of loading arm and the order of disengaging.
Wherein, upper and lower two ball valves including the valve body with inner chamber, the valve rod be plugged in body cavity, being positioned at the valve rod base for installing valve rod outside valve body.This valve switch mechanism 3 comprises the quadratic crank mechanism be arranged between two ball-valve valve rods and the driver be arranged in two ball valves on the valve rod base of side.Shown in Figure 1, two push rods 32 that this quadratic crank mechanism comprises the upper connecting rod 30 be arranged on respectively on upper valve rod 11 and lower valve rod 21, lower link 31 and is connected between connecting rod 30 and lower link 31.In this example, this driver is Valve controlling oil cylinder 33, and this driver can be arranged on upper valve rod seat 12 or lower valve rod seat 22.In this example, this driver is arranged on upper valve rod seat 12, and its output terminal to be connected on connecting rod 30, rotarily drive lower link 31 by driving upper connecting rod 30 to rotate, thus achieve upper ball valve 1 and lower ball valve 2 synchronous switch, by this setting, the operational torque of Valve controlling oil cylinder 33 is reduced, can guarantee that valve closing is complete, prevent valve body leakage.In order to make operation more laborsaving, here, parallelogram hinge linkage is arranged to by this quadratic crank mechanism.
And in order to make two ball valves in mutual detach procedure, this quadratic crank mechanism also can be thrown off, in case mutually hook between loading arm and indusion tube, the phenomenon causing loading arm to be collapsed occurs.Here, the same side end of these two push rods 32 is removably connected on the end of upper connecting rod 30 or lower link 31.Shown in Figure 1, in this example, the underpart of these two push rods 32 all offers the draw-in groove that can be fastened on lower link 31 end.When two ball valves depart from mutually, the draw-in groove on push rod 32 departs from the end of lower link 31, thus linkage mechanism is departed from easily mutually very much.
This emergency separating device also comprise be located in two ball valve interface outer rims for controlling the locking mechanism 4 that two ball valves are mutually locked or departed from.This locking mechanism 4 comprises anchor ear 40, check lock lever 41 and push-and-pull assembly, and shown in Fig. 2, Fig. 4, this anchor ear 40, check lock lever 41 and push-and-pull assembly form one and be around in upper and lower two valve body interface outer rims close wedge ring.The second clamping part that this anchor ear 40 at least comprises the first clamping part be fixedly mounted in interface outer rim, is hinged with the first clamping part, this second clamping part can be clamped in closing on wedge ring in described interface outer rim.Certainly according to actual conditions, anchor ear 40 can be divided into multistage.Here, in the outer rim that this check lock lever 41 is fixedly mounted on interface and an end and the first clamping part be hinged, this push-and-pull assembly comprises that horizontal rotary is rotatably arranged on push pedal 42 on the second clamping part, level is fixedly mounted on cam 43 in push pedal 42, the swingle 44 that can rotate around Pivot Point Center line be arranged on by bearing pin in push pedal 42, this swingle 44 is located at cam 43 by end, paracentral one end, and the other end end of this check lock lever 41 can be kept out and is separated in push pedal 42 or with this push pedal 42.
In this example, the valve body of these two ball valves is also provided with outward extending projection 5, when push pedal 42 rotate contact to swingle 44 with this projection 5 time, swingle 44 rotates, and push pedal 42 continues to rotate, thus drives the second clamping part on anchor ear 40 to depart from valve body.
This locking mechanism 4 also comprises the disengaging oil cylinder 45 for driving push pedal 42 to rotate be arranged on the second clamping part, and the output terminal of this disengaging oil cylinder 45 is fixedly connected in this push pedal 42.
In this example, this push pedal 42 comprises push pedal and lower push pedal, the end, one end of this check lock lever 41 be provided with can plug the cutting graftage part between upper push pedal and lower push pedal, simultaneously, occur between check lock lever 41 and push pedal 42 to loosen to prevent oil-feeding arm vibration or the manual misoperation of operator from causing, cause that anchor ear 40 loosens, valve is separated, here, this locking mechanism 4 also comprises the shear pin be fixed between check lock lever 41 and push pedal 42, here, the cutting graftage part that this shear pin passes vertically through on check lock lever 41 is connected with push pedal 42.When shear pin ruptures, this check lock lever 41 can be separated with push pedal 42.
When two ball valves are closed completely, the hydraulic system of loading arm provides signal to locking mechanism 4, can carry out the disengaging operation of two ball valves.Specific operation are as follows: when the hydraulic system of loading arm provides signal to locking mechanism 4, the output shaft departing from oil cylinder 45 stretches out forward, one is applied to the power of inner rotary to push pedal 42, when this power exceedes the strength of shear pin, shear pin ruptures, push pedal 42 continues to rotate, when swingle 44 contacts with projection 5, swingle 44 rotates, to projection 5 one thrust, under the reaction of this thrust, make the second clamping part of anchor ear 40 away from this interface, push pedal 42 simultaneously continues to inner rotary, to cam 43, end, deep one end contacts with interface and promotes valve body, under the reaction of this thrust, second clamping part of anchor ear 40 is continued away from this interface, like this, two ball valves can be thrown off mutually.
And in order to make the interface place of upper and lower ball valve seal firm, in this example, this upper ball valve 1 with the interface of lower ball valve 2 is all installed with the adpting flange be connected for both, this flange be respectively with upper valve body 10, the integrated cone-shaped flange of lower valve body 20.
In order to make in two ball valve installation processes, valve pocket is corresponding with the gap reduced between two ball valves, and the interface of two upper and lower two valve bodies also offers butt hole respectively, is connected and fixed by two valve bodies through after butt hole by reset bolt.
In order to prevent valve switch mechanism 3 with locking mechanism 4 in idle situation, Valve controlling oil cylinder 33 leaks with the fry dried food ingredients departed from oil cylinder 45 is raw, the hydraulic system of this loading arm also comprises the liquid level selector valve be arranged on Valve controlling oil cylinder 33, disengaging oil cylinder 45, when valve switch mechanism 3 is failure to actuate with locking mechanism 4, liquid level selector valve cuts off in-oil cylinder oil circuit after receiving the signal of hydraulic system, effectively prevent in oil cylinder phenomenon oil occurring and leaks.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. a very low temperature flow materials handling equipment emergency separating device, described emergency separating device comprises, lower two ball valves, drive two ball valve synchronous switches valve switch mechanism and be located in two ball valve interface outer rims for controlling the locking mechanism that two ball valves are mutually locked or departed from, described is upper, lower two ball valves include the valve body with inner chamber, be plugged in the valve rod in described body cavity, be positioned at the valve rod base for installing described valve rod outside described valve body, it is characterized in that: described valve switch mechanism comprises the quadratic crank mechanism be arranged between two ball-valve valve rods and the driver be arranged in two ball valves on the valve rod base of side, described quadratic crank mechanism comprises and is arranged on upper connecting rod on upper valve rod and lower valve rod and lower link respectively, be connected to two push rods between described upper connecting rod and described lower link, the end of the same side of two described push rods is all removably connected on the end bearing pin of described upper connecting rod or described lower link, the output terminal of described driver is connected on described upper connecting rod or described lower link.
2. very low temperature flow materials handling equipment emergency separating device according to claim 1, it is characterized in that: described locking mechanism comprises anchor ear, check lock lever and push-and-pull assembly, described anchor ear, check lock lever, push-and-pull assembly forms one and is around in, lower two valve body interface outer rims close wedge ring, described anchor ear at least comprises the first clamping part be fixedly mounted in described interface outer rim, the second clamping part be hinged with described first clamping part, described second clamping part can be clamped in and described interface outer rim closes on wedge ring, in the outer rim that described check lock lever is fixedly mounted on described interface and end, one end and described first clamping part be hinged, described push-and-pull assembly comprises and can rotatably be arranged on push pedal on described second clamping part by horizontal rotary, level is fixedly mounted on the cam in described push pedal, the swingle that can rotate around Pivot Point Center line in described push pedal is arranged on by bearing pin, described swingle be located at described cam by end, paracentral one end, the other end end of described check lock lever can be kept out and is separated in described push pedal or with described push pedal.
3. very low temperature flow materials handling equipment emergency separating device according to claim 2, it is characterized in that: described locking mechanism also comprises the disengaging oil cylinder for driving described push pedal to rotate be arranged on described second clamping part, and the output terminal of described disengaging oil cylinder is fixedly connected in described push pedal.
4. very low temperature flow materials handling equipment emergency separating device according to claim 2, it is characterized in that: described push pedal comprises push pedal and lower push pedal, the described the other end end of described check lock lever is provided with the cutting graftage part that can be plugged between described upper push pedal and described lower push pedal or to be separated with described push pedal.
5. very low temperature flow materials handling equipment emergency separating device according to claim 2, it is characterized in that: described locking mechanism also comprises the shear pin fixed for both be located between described check lock lever and described push pedal, when described shear pin fracture, described push pedal can be separated with described check lock lever.
6. very low temperature flow materials handling equipment emergency separating device according to claim 2, it is characterized in that: the valve body of two ball valves is also provided with outward extending projection, when the described swingle in described push-and-pull assembly contacts with described projection, described swingle rotates, and described push-rod assembly drives described second clamping part on described anchor ear to depart from valve body.
7. very low temperature flow materials handling equipment emergency separating device according to claim 1, it is characterized in that: one end of described driver is connected on described upper valve rod seat, the output terminal of described driver is connected on described upper connecting rod, the downside end of two described push rods all offers the draw-in groove that can be fastened on respectively on end, described lower link one end.
8. very low temperature flow materials handling equipment emergency separating device according to claim 1, is characterized in that: described quadratic crank mechanism is parallelogram hinge linkage.
9. very low temperature flow materials handling equipment emergency separating device according to claim 1, is characterized in that: the described interface of two ball valves is all installed with the adpting flange connected for both.
10. very low temperature flow materials handling equipment emergency separating device according to claim 9, is characterized in that: described adpting flange is cone-shaped flange shaping with upper valve body, lower valve body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724353.0A CN105351599B (en) | 2015-10-30 | 2015-10-30 | Very low temperature flow handling facilities emergency separating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724353.0A CN105351599B (en) | 2015-10-30 | 2015-10-30 | Very low temperature flow handling facilities emergency separating device |
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| CN105351599A true CN105351599A (en) | 2016-02-24 |
| CN105351599B CN105351599B (en) | 2019-01-29 |
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| CN201510724353.0A Active CN105351599B (en) | 2015-10-30 | 2015-10-30 | Very low temperature flow handling facilities emergency separating device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339492A (en) * | 2017-05-15 | 2017-11-10 | 江苏双鑫集团有限公司 | Conveying equipment for fluid substances Shuttoff Valve |
| CN109595361A (en) * | 2019-01-23 | 2019-04-09 | 艾思瑞流体控制有限公司 | A kind of novel three-way revolves ceramic valve partially |
| CN110336242A (en) * | 2019-06-27 | 2019-10-15 | 宝鸡石油机械有限责任公司 | Jumper cable quickly connects and urgent disengaging gear between a kind of ocean platform |
| CN111174091A (en) * | 2020-02-21 | 2020-05-19 | 大连华锐重工集团股份有限公司 | Large-scale LNG unloads emergency release system for arm |
| CN111550629A (en) * | 2020-05-09 | 2020-08-18 | 中国船舶重工集团公司第七一六研究所 | Emergency release device suitable for ship loading and unloading arm |
| CN111678039A (en) * | 2020-05-09 | 2020-09-18 | 中国船舶重工集团公司第七一六研究所 | Electric control system suitable for automatic butt joint of loading and unloading arms for ship |
| CN113566013A (en) * | 2021-07-16 | 2021-10-29 | 中国海洋大学 | Double-hydraulic-cylinder type emergency release device |
| CN114321486A (en) * | 2021-12-06 | 2022-04-12 | 连云港杰瑞自动化有限公司 | Emergency release device for fluid loading and unloading arm |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339492A (en) * | 2017-05-15 | 2017-11-10 | 江苏双鑫集团有限公司 | Conveying equipment for fluid substances Shuttoff Valve |
| CN109595361A (en) * | 2019-01-23 | 2019-04-09 | 艾思瑞流体控制有限公司 | A kind of novel three-way revolves ceramic valve partially |
| CN110336242A (en) * | 2019-06-27 | 2019-10-15 | 宝鸡石油机械有限责任公司 | Jumper cable quickly connects and urgent disengaging gear between a kind of ocean platform |
| CN111174091A (en) * | 2020-02-21 | 2020-05-19 | 大连华锐重工集团股份有限公司 | Large-scale LNG unloads emergency release system for arm |
| CN111550629A (en) * | 2020-05-09 | 2020-08-18 | 中国船舶重工集团公司第七一六研究所 | Emergency release device suitable for ship loading and unloading arm |
| CN111678039A (en) * | 2020-05-09 | 2020-09-18 | 中国船舶重工集团公司第七一六研究所 | Electric control system suitable for automatic butt joint of loading and unloading arms for ship |
| CN111678039B (en) * | 2020-05-09 | 2022-06-28 | 中国船舶重工集团公司第七一六研究所 | Electric control system suitable for automatic butt joint of loading arm and unloading arm for ship |
| CN111550629B (en) * | 2020-05-09 | 2024-05-03 | 中国船舶集团有限公司第七一六研究所 | Emergency disengaging gear suitable for ship loading and unloading arm |
| CN113566013A (en) * | 2021-07-16 | 2021-10-29 | 中国海洋大学 | Double-hydraulic-cylinder type emergency release device |
| CN114321486A (en) * | 2021-12-06 | 2022-04-12 | 连云港杰瑞自动化有限公司 | Emergency release device for fluid loading and unloading arm |
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|---|---|
| CN105351599B (en) | 2019-01-29 |
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