CN111120752A - A quick connector for liquefied natural gas discharge arm - Google Patents
A quick connector for liquefied natural gas discharge arm Download PDFInfo
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- CN111120752A CN111120752A CN202010069234.7A CN202010069234A CN111120752A CN 111120752 A CN111120752 A CN 111120752A CN 202010069234 A CN202010069234 A CN 202010069234A CN 111120752 A CN111120752 A CN 111120752A
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- fixed
- guide
- pressing block
- fixed plate
- flange
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members
- F16L37/1205—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members using hooks hinged about an axis placed behind a flange and which act behind the other flange
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/62—Couplings of the quick-acting type pneumatically or hydraulically actuated
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
本发明公开了一种液化天然气卸料臂快速接头，包括对接法兰和快接机构，对接法兰包括法兰前盘、法兰管道和固定盘，快接机构包括一个旋转盘、至少两根同步连接杆和至少两个卡接组件，旋转盘可旋转套设于固定盘上，若干个卡接组件可拆卸设置于法兰前盘上，若干个同步连接杆的底端设置于旋转盘上，若干个同步连接杆的顶端分别连接于若干个卡接组件，卡接组件包括一压紧块，每个卡接组件的压紧块的侧壁向法兰管道的中心线突出形成压紧端面。本发明公开的液化天然气卸料臂快速接头，通过一个旋转盘将法兰前盘的若干个活动连接的卡接组件实现了多个卡接组件卡接在时间上的同步，夹紧和对中也能同时进行，省时省力，可操作性强，对中效率高。
The invention discloses a quick joint of a liquefied natural gas discharge arm, comprising a butt flange and a quick connection mechanism. The butt flange comprises a flange front plate, a flange pipeline and a fixed plate, and the quick connection mechanism comprises a rotating plate, at least two A synchronous connecting rod and at least two clamping components, the rotating disk can be rotatably sleeved on the fixed disk, a plurality of clamping components are detachably arranged on the flange front plate, and the bottom ends of several synchronous connecting rods are arranged on the rotating disk , the tops of several synchronous connecting rods are respectively connected to several clamping components, the clamping components include a pressing block, and the side wall of the pressing block of each clamping component protrudes to the centerline of the flange pipe to form a pressing end face . The liquefied natural gas unloading arm quick joint disclosed by the invention realizes the synchronization, clamping and centering of the clamping of the plurality of clamping assemblies in time by connecting a plurality of movably connected clamping assemblies of the flange front plate through a rotating disc. It can also be carried out at the same time, saving time and effort, strong operability, and high alignment efficiency.
Description
Technical Field
The invention relates to the technical field of energy transportation, in particular to a quick joint of a liquefied natural gas discharge arm.
Background
The liquefied natural gas loading and unloading arm is special equipment for loading and unloading liquefied natural gas on vehicles and ships, and is a transition connection device for transferring the liquefied natural gas between storage equipment. The quick joint is an important part for connecting the liquefied natural gas loading and unloading arm with the liquefied natural gas flow transmission pipeline. The guider of current quick-operation joint is fixed, needs artifical debugging many times to realize accurate centering when carrying out the butt joint, increases the work degree of difficulty of workman centering, and manpower, time are with high costs, and is efficient, and maneuverability is poor.
Disclosure of Invention
The invention aims to provide a quick joint for an LNG discharging arm, which is used for solving the problems of complex butt joint operation, low centering efficiency and poor operability of the conventional LNG discharging arm.
The invention provides a liquefied natural gas discharge arm quick joint which comprises a butt flange and a quick connection mechanism, wherein the butt flange comprises a flange front disc, a flange pipeline and a fixed disc, and the flange front disc and the fixed disc are respectively fixed at two ends of the flange pipeline; connect mechanism soon includes a rotary disk, two piece at least synchronous connecting rods and two at least joint subassemblies, the rotatable cover of rotary disk is located on the fixed disk, a plurality of the joint subassembly along the circumference of flange front bezel is even can dismantle set up in on the flange front bezel, a plurality of the bottom of synchronous connecting rod along the circumference of rotary disk is even the interval set up in on the rotary disk, a plurality of the top of synchronous connecting rod is connected respectively in a plurality of the joint subassembly, the joint subassembly includes a compact heap, every the lateral wall of the compact heap of joint subassembly is to the outstanding formation of flange pipeline's central line and compress tightly the terminal surface.
Preferably, the clamping assembly further comprises a fixed plate seat and two guiding devices, the fixed plate seats of the plurality of clamping assemblies are fixed on the back surface of the flange front disc at uniform intervals along the periphery of the flange front disc, the pressing block comprises a fixed plate seat butting portion, a connecting rod butting portion and a guiding device butting portion, the guiding device butting portion and the connecting rod butting portion are respectively located on two sides of the fixed plate seat butting portion, and the side wall of the guiding device butting portion protrudes outwards to form the pressing end surface; the two guide devices are pivoted on two sides of the middle part of the fixed plate seat, the guide device butt joint part of the pressing block is coaxially pivoted with the two guide devices, a pressing block connecting seat is installed at the outer end of the fixed plate seat, and the fixed plate seat butt joint part of the pressing block is pivoted with the pressing block connecting seat of the fixed plate seat; the connecting rod butt joint part of the pressing block is movably connected with the synchronous connecting rod through a rotary joint.
Preferably, the guide device comprises a first guide plate, a second guide plate and a plurality of fixing bolts, the upper parts and the bottom ends of the first guide plate and the second guide plate are respectively provided with a sliding rod connecting part and a fixing plate seat connecting end, the middle parts of the fixing plate seat connecting parts of the first guide plate and the second guide plate are respectively provided with a sliding groove, two rows of bolt holes are respectively arranged on the first guide plate and the second guide plate on two sides of the sliding groove, the first guide plate and the second guide plate are arranged in parallel, and the first guide plate and the second guide plate are transversely connected through the plurality of fixing bolts to form a whole; two guide device butt-joint seats are respectively arranged on two sides of the middle part of the fixed plate seat, the fixed plate seat connecting ends of the first guide plate and the second guide plate jointly form a fixed plate seat connecting part of the guide device, and the fixed plate seat connecting parts of the two guide devices are respectively coaxially pivoted with the two guide device butt-joint seats of the fixed plate seat; a sliding rod is transversely arranged between the sliding grooves of the two guide devices, and the butt joint part of the guide devices of the pressing block is pivoted with the two guide devices through the sliding rod.
Preferably, the two ends of the rotary joint are respectively provided with a rotary joint synchronous connecting rod butt-joint part and a pressing block butt-joint part, the pressing block butt-joint part is connected with the connecting rod butt-joint part of the pressing block through a bolt, and the rotary joint synchronous connecting rod butt-joint part is pivoted with the synchronous connecting rod.
Preferably, a buffer spring is arranged in the middle of the synchronous connecting rod, an annular connector and a spherical shell connector are respectively arranged at two ends of the synchronous connecting rod, and the annular connector is coaxially pivoted with the butt joint part of the rotary joint synchronous connecting rod of the rotary joint; the spherical shell joint is movably connected with the rotating disc.
Preferably, the rotary disk is an annular rotary disk, a plurality of butt joint rods are uniformly fixed in the circumferential direction of the rotary disk, a ball connector is arranged at the butt joint end of each butt joint rod, and the ball connector is rotatably sleeved on the spherical shell connector of the synchronous connecting rod.
Preferably, this liquefied natural gas unloads quick-operation joint of arm still includes power device, power device includes first mount, second mount and pneumatic cylinder, the stiff end of first mount with the stiff end of second mount is fixed in respectively the fixed disk with on the rotary disk, the pneumatic cylinder includes cylinder and piston rod, the free end of first mount with the free end of second mount is fixed in respectively the cylinder with on the piston rod.
The invention has the beneficial effects that:
the invention discloses a liquefied natural gas discharge arm quick connector, which is characterized in that a plurality of clamping components movably connected to a flange front disc are connected with the same rotating disc, so that synchronous clamping of the clamping components is realized, clamping and centering can be simultaneously performed even if large radial displacement exists at the quick connector and the flange end of a liquefied natural gas flow pipeline during butt joint, one-time quick centering can be realized, accurate centering can be realized without manual multiple debugging, time and labor are saved, the operability is strong, and the centering efficiency is high.
Drawings
Fig. 1 is a schematic structural diagram of a quick coupling of a liquefied natural gas discharge arm according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a counterflange according to embodiment 1 of the invention;
fig. 3 is a schematic structural view of a fixed plate seat provided in embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of a compact provided in embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a guide device provided in embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a rotary joint provided in embodiment 1 of the present invention;
fig. 7 is a schematic structural view of a rotating disk provided in embodiment 1 of the present invention;
fig. 8 is a schematic structural view of a synchronous connecting rod provided in embodiment 1 of the present invention;
fig. 9 is a schematic structural diagram of a quick coupling of an lng unloading arm with a power plant according to embodiment 2 of the present invention.
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "left" and "right" are orientations or positional relationships described based on the drawings, and are for convenience of description of the present invention. The terms "first", "second", etc. are used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Example 1
Embodiment 1 provides a quick coupling for a lng discharge arm, the structure of which will be described in detail below.
Referring to fig. 1 and 2, the lng discharge arm quick coupling includes a docking flange and a quick coupling mechanism.
Wherein the flange comprises a flange front disc 1, a flange pipeline 2 and a fixed disc 3, a plurality of mounting holes are uniformly arranged on the butt joint surface of the flange front disc 1 at intervals, and the flange front disc 1 and the fixed disc 3 are respectively fixed at the top end and the bottom end of the flange pipeline 2.
The quick connection mechanism comprises a rotating disc 4, four synchronous connecting rods 5 and four clamping components 6, an annular track is arranged on the outer wall of the fixed disc 3, and the rotating disc 4 is rotatably sleeved on the annular track of the fixed disc 3. Four joint subassemblies 6 evenly can dismantle along the circumference of flange front bezel 1 and set up on flange front bezel 1, and the bottom of four synchronous connecting rods 5 sets up on rotary disk 4 along the even interval of the circumference of rotary disk 4, and the top of four synchronous connecting rods 5 is connected respectively in four joint subassemblies 6.
Each set of clamping assemblies 6 comprises a clamping block 61, a fixed plate holder 62 and two guides 63.
Referring to fig. 3, two flange front plate docking holes 621 are disposed on two sides of the inner end of the fixed plate base 62, and the fixed plate base 62 is fixed on the flange front plate 1 through the two flange front plate docking holes 621 and the mounting holes on the docking surface of the flange front plate 1.
Two guiding device docking seats 622 are respectively arranged on two sides of the middle of the fixed plate seat 62, a mounting hole is formed in each guiding device docking seat 622, and the two guiding device docking seats 622 are respectively used for mounting the two guiding devices 63.
The compact heap connecting seat 623 is installed to the outer end of fixed plate seat 62, and compact heap connecting seat 623 includes two connecting seats, all is provided with the mounting hole on every connecting seat of compact heap connecting seat 623 for with the swing joint of synchronizing bar 5.
Referring to fig. 4, the outer side surface of the pressing block 61 is an arc-shaped surface, and the outer shape of the pressing block is in an irregular fan shape, and includes a fixed plate seat abutting portion 611, a connecting rod abutting portion 612 and a guide device abutting portion 613, the fixed plate seat abutting portion 611 is disposed near a fan-shaped central angle of the pressing block 61, a sliding rod through hole is disposed on the guide device abutting portion 613, the guide device abutting portion 613 and the connecting rod abutting portion 612 are respectively located at two sides of the fixed plate seat abutting portion 611, a rotary joint mounting hole is disposed on the connecting rod abutting portion 612, a fixed plate seat mounting hole is disposed on the fixed plate seat abutting portion 611, and a side wall of the guide device abutting portion 613 protrudes outward to form a pressing end surface 610.
Referring to fig. 5, the guide 63 includes a first guide plate 631, a second guide plate 632, and a number of fixing bolts 633.
Including the slide bar connecting portion that is located upper portion and the fixed plate seat link that is located the bottom, the butt joint forms integratively about slide bar connecting portion and the fixed plate seat connecting portion, specifically, the central line of fixed plate seat connecting portion and the central line of slide bar connecting portion become the obtuse angle butt joint, preferably, slide bar connecting portion and fixed plate seat link integrated into one piece.
The middle parts of the fixing plate seat connecting parts of the first guide plate 631 and the second guide plate 632 are both provided with a sliding groove 80, the sliding groove 80 is in a long strip shape, two rows of bolt holes are respectively arranged on the first guide plate 631 and the second guide plate 632 on two sides of the sliding groove 80, specifically, in this embodiment, referring to fig. 5, each row of bolt holes is 3, the two rows are combined to form 6 bolt holes, the first guide plate 631 and the second guide plate 632 are arranged in parallel, and the first guide plate 631 and the second guide plate 632 are transversely connected through 6 fixing bolts 633 to form a whole.
The fixed plate seat connecting portions of the first guide plate 631 and the second guide plate 632 are respectively provided with a fixed plate seat pivot connecting hole 630, the fixed plate seat connecting portions of the first guide plate 631 and the second guide plate 632 are respectively arranged on two sides of the guide device docking seat 622 of the fixed plate seat 62, and bolts or pivots are adopted to pass through the fixed plate seat pivot connecting holes 630 of the fixed plate seat connecting portions of the first guide plate 631 and the second guide plate 632 and the mounting holes of the guide device docking seat 622 in the middle of the fixed plate seat connecting portions, so that the coaxial pivot connection between one of the guide devices 63 and one of the guide device docking seats 622 of the fixed plate seat 62 is realized. The fixed board seat connecting ends of the first guiding board 631 and the second guiding board 632 jointly form the fixed board seat connecting portion of the guiding device 63, and similarly, the fixed board seat connecting portions of the two guiding devices 63 are coaxially pivoted with the two guiding device docking seats 622 of the fixed board seat 62 respectively.
The two guide devices 63 are respectively pivoted to two sides of the middle of the fixed plate base 62 through two guide device docking seats 622, a sliding rod 8 is transversely arranged between the sliding grooves 80 of the two guide devices 63, and the guide device docking portion 613 of the pressing block 61 penetrates through the sliding rod 8, so that the guide device docking portion 613 of the pressing block 61 is coaxially pivoted with the two guide devices 63.
With continued reference to fig. 1, the retaining plate holder interface 611 of the clamping block 61 is pivotally connected to the clamping block connector 623 via the retaining plate holder mounting hole.
The two guides 63 are pivotally connected to two sides of the middle portion of the fixed plate base 62 through the fixed plate base pivot holes 630, a sliding rod 8 is transversely disposed between the sliding grooves 80 of the two guides 63, and the sliding rod 8 is inserted into a sliding rod through hole of the guide abutting portion 613 of the pressing block 61 to connect the guide abutting portion 613 of the pressing block 61 with the two guides 63, so as to implement coaxial pivotal connection between the two guides 63 and the guide abutting portion 613 of the pressing block 61. The link butting portion 612 of the pressing block 61 is connected to the synchronizing link 5 through the rotary joint 7.
Specifically, referring to fig. 6, both ends of the rotary joint 7 are respectively provided with a rotary joint synchronous connecting rod butting portion 71 and a pressing block butting portion 72,
a bolt hole is formed in the pressing block butting portion 72 of the rotary joint 7, an internal thread is formed in the bolt hole, a rotary joint mounting hole is formed in the connecting rod butting portion 612, and the pressing block butting portion 72 of the rotary joint 7 is connected with the connecting rod butting portion 612 of the pressing block 61 through a bolt.
Referring to fig. 7, the rotating disc 4 is an annular rotating disc, a plurality of docking rods 41 are uniformly fixed in the circumferential direction of the rotating disc 4, and the docking ends of the docking rods 41 are provided with ball connectors 42.
Referring to fig. 8, a buffer spring 51 is disposed in the middle of the synchronous connecting rod 5, an annular connector 52 and a spherical shell connector 53 are respectively disposed at two ends of the synchronous connecting rod 5, the spherical connector 42 of the butt-joint rod 41 is rotatably sleeved on the spherical shell connector 53 of the synchronous connecting rod 5, a mounting hole is disposed on the annular connector 52 of the synchronous connecting rod 5, two mounting holes are disposed in pair in the butt-joint portion 71 of the synchronous connecting rod of the rotary joint, and the annular connector 52 of the synchronous connecting rod 5 is coaxially pivoted with the butt-joint portion 71 of the synchronous connecting rod of the rotary joint 7.
Example 2
On the basis of the quick joint of the liquefied natural gas discharge arm provided in embodiment 1, a power plant is added in embodiment 2, and the structure and connection relationship of the added power plant are described in detail below.
Referring to fig. 9, the power unit includes a first mount 91, a second mount 92 and a hydraulic cylinder 93,
the fixed end of the first fixing frame 91 and the fixed end of the second fixing frame 92 are fixed on the fixed disc 3 and the rotating disc 4 respectively, the hydraulic cylinder 93 comprises a cylinder barrel and a piston rod, and the free end of the first fixing frame 91 and the free end of the second fixing frame 92 are fixed on the cylinder barrel and the piston rod respectively.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. A quick joint of a liquefied natural gas discharge arm is characterized by comprising a butt flange and a quick connection mechanism,
the butt flange comprises a flange front disc (1), a flange pipeline (2) and a fixed disc (3), wherein the flange front disc (1) and the fixed disc (3) are respectively fixed at two ends of the flange pipeline (2);
the quick-connection mechanism comprises a rotating disc (4), at least two synchronous connecting rods (5) and at least two clamping components (6),
the rotating disc (4) is rotatably sleeved on the fixed disc (3), a plurality of clamping components (6) are uniformly and detachably arranged on the flange front disc (1) along the circumferential direction of the flange front disc (1),
the bottom ends of the synchronous connecting rods (5) are uniformly arranged on the rotating disc (4) at intervals along the circumferential direction of the rotating disc (4), the top ends of the synchronous connecting rods (5) are respectively connected with the clamping components (6),
the clamping assembly (6) comprises a pressing block (61), and the side wall of the pressing block (61) of each clamping assembly (6) protrudes towards the center line of the flange pipeline (2) to form a pressing end face (610).
2. The liquefied natural gas discharge arm quick coupling of claim 1,
the clamping assembly (6) also comprises a fixed plate seat (62) and two guide devices (63),
the fixed plate seats (62) of the plurality of clamping components (6) are fixed on the back surface of the flange front disc (1) at even intervals along the periphery of the flange front disc (1),
the pressing block (61) comprises a fixed plate seat butting part (611), a connecting rod butting part (612) and a guide device butting part (613), the guide device butting part (613) and the connecting rod butting part (612) are respectively positioned at two sides of the fixed plate seat butting part (611), and the side wall of the guide device butting part (613) protrudes outwards to form the pressing end surface (610);
the two guide devices (63) are pivoted on two sides of the middle part of the fixed plate seat (62), the guide device butt joint part (613) of the pressing block (61) is coaxially pivoted with the two guide devices (63),
a pressing block connecting seat (623) is installed at the outer end of the fixed plate seat (62), and a fixed plate seat butting part (611) of the pressing block (61) is pivoted to the pressing block connecting seat (623) of the fixed plate seat (62);
the connecting rod butt joint part (612) of the pressing block (61) is movably connected with the synchronous connecting rod (5) through a rotary joint (7).
3. The liquefied natural gas discharge arm quick coupling of claim 2,
the guide device (63) comprises a first guide plate (631), a second guide plate (632) and a plurality of fixing bolts (633),
the upper part and the bottom end of the first guide plate (631) and the second guide plate (632) are respectively provided with a slide rod connecting part and a fixed plate seat connecting end,
the middle parts of the fixed plate seat connecting parts of the first guide plate (631) and the second guide plate (632) are respectively provided with a sliding groove (80), two rows of bolt holes are respectively formed in the first guide plate (631) and the second guide plate (632) on two sides of the sliding groove (80), the first guide plate (631) and the second guide plate (632) are arranged in parallel, and the first guide plate (631) and the second guide plate (632) are transversely connected through a plurality of fixing bolts (633) to form a whole;
two sides of the middle part of the fixed plate seat (62) are respectively provided with two guide device butt joint seats (622),
the fixed plate seat connecting ends of the first guide plate (631) and the second guide plate (632) jointly form a fixed plate seat connecting part of the guide device (63), and the fixed plate seat connecting parts of the two guide devices (63) are coaxially pivoted with the two guide device butt-joint seats (622) of the fixed plate seat (62) respectively;
a sliding rod (8) is transversely arranged between the sliding grooves (80) of the two guide devices (63), and the guide device butt joint part (613) of the pressing block (61) is pivoted with the two guide devices (63) through the sliding rod (8).
4. The liquefied natural gas discharge arm quick coupling of claim 2,
two ends of the rotary joint (7) are respectively provided with a rotary joint synchronous connecting rod butt joint part (71) and a pressing block butt joint part (72),
the pressing block butt joint part (72) is connected with the connecting rod butt joint part (612) of the pressing block (61) through a bolt, and the rotary joint synchronous connecting rod butt joint part (71) is pivoted with the synchronous connecting rod (5).
5. The liquefied natural gas discharge arm quick coupling of claim 4,
a buffer spring (51) is arranged in the middle of the synchronous connecting rod (5), two ends of the synchronous connecting rod (5) are respectively provided with an annular connector (52) and a spherical shell connector (53),
the annular connector (52) is coaxially pivoted with a rotary joint synchronous connecting rod butt joint part (71) of the rotary joint (7);
the spherical shell joint (53) is movably connected with the rotating disc (4).
6. The liquefied natural gas discharge arm quick coupling of claim 5,
the rotating disc (4) is an annular rotating disc, a plurality of butt joint rods (41) are uniformly fixed in the circumferential direction of the rotating disc (4), the butt joint ends of the butt joint rods (41) are provided with ball connectors (42),
the sphere connector (42) is rotatably sleeved on the spherical shell connector (53) of the synchronous connecting rod (5).
7. The liquefied natural gas discharge arm quick coupling of claim 1, further comprising a power plant,
the power device comprises a first fixed frame (91), a second fixed frame (92) and a hydraulic cylinder (93),
the fixed end of the first fixing frame (91) and the fixed end of the second fixing frame (92) are respectively fixed on the fixed disc (3) and the rotating disc (4), the hydraulic cylinder (93) comprises a cylinder barrel and a piston rod, and the free end of the first fixing frame (91) and the free end of the second fixing frame (92) are respectively fixed on the cylinder barrel and the piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010069234.7A CN111120752B (en) | 2020-01-21 | 2020-01-21 | A quick connector for liquefied natural gas unloading arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010069234.7A CN111120752B (en) | 2020-01-21 | 2020-01-21 | A quick connector for liquefied natural gas unloading arm |
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| CN111120752A true CN111120752A (en) | 2020-05-08 |
| CN111120752B CN111120752B (en) | 2025-01-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908170A (en) * | 2020-09-11 | 2020-11-10 | 常州市星干干燥设备有限公司 | A self-sealing docking device for self-calibrating center of moving target |
| CN112555533A (en) * | 2020-12-04 | 2021-03-26 | 中国石油大学(北京) | Liquefied natural gas unloading arm quick-operation joint device |
| CN115076483A (en) * | 2022-06-10 | 2022-09-20 | 连云港杰瑞自动化有限公司 | Hydraulic quick self-locking device suitable for LNG hose conveying system |
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| RU2260737C2 (en) * | 2002-12-02 | 2005-09-20 | Федеральное государственное унитарное предприятие "Государственный космический научно-производственный центр им. М.В. Хруничева" | Quick-detachable pipe joint |
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| CN201722138U (en) * | 2010-04-27 | 2011-01-26 | 连云港步升机械有限公司 | Wharf loading arm quick joint |
| CN103249641A (en) * | 2010-10-26 | 2013-08-14 | Ksb有限公司 | Connection device with releasable clamping modules |
| CN104964119A (en) * | 2015-07-13 | 2015-10-07 | 上海杰桢海洋工程有限公司 | Blind plate special for loading arm connector |
| CN211550855U (en) * | 2020-01-21 | 2020-09-22 | 中国石油大学(北京) | Liquefied natural gas unloading arm quick joint |
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| CN111908170A (en) * | 2020-09-11 | 2020-11-10 | 常州市星干干燥设备有限公司 | A self-sealing docking device for self-calibrating center of moving target |
| CN112555533A (en) * | 2020-12-04 | 2021-03-26 | 中国石油大学(北京) | Liquefied natural gas unloading arm quick-operation joint device |
| CN112555533B (en) * | 2020-12-04 | 2024-11-26 | 中国石油大学(北京) | A quick connector device for liquefied natural gas unloading arm |
| CN115076483A (en) * | 2022-06-10 | 2022-09-20 | 连云港杰瑞自动化有限公司 | Hydraulic quick self-locking device suitable for LNG hose conveying system |
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