CN104285090B - For the rapid connector that the pipeline guiding fluid is engaged with each other - Google Patents

Abstract

Present invention relates generally to a kind of for by pipeline, as that be connected to each other in particular for hose line or be used for the jointer being connected on accessory by hose line.For this, illustrate a kind of rapid connector (1) for making the pipeline of guiding fluid be engaged with each other, described rapid connector includes the first joint elements (3) and the second joint elements (5) and is used for sealing the sealing member (7) of said two joint elements (3,5), also there is locking mechanism (9), in order to make two joint elements (3,5) removably be engaged with each other.Two joint elements (3,5) are equipped with valve gear (11,13).Each in two valve gears (11,13) has an axially movable valve (15,17), wherein the valve (15) of the first valve gear (11) has opening (150), and tappet (152) axially movably keeps in said opening.Tappet (152) keeps two valves (15,17) separately when joint elements (3,5) are joined together.Tappet (152) can be by locking system (110) kayser.Locking mechanism (9) is connected with locking system (11) effect, thus in operation locking mechanism (9) so that just releasing the locking to tappet (152) when two joint elements being engaged with each other (3,5) separate before described joint elements separate, and two valves (15,17) are closed up with corresponding valve seat (19,21).

Description

For the rapid connector that the pipeline guiding fluid is engaged with each other

Technical field

Present invention relates generally to a kind of for connecting line, such as be connected to each other in particular for hose line or use In the jointer that hose line is connected on accessory.The invention particularly relates to self-packing jointer dry type in other words engage Device, the most such jointer, its joint elements seal pipeline when separately jointer.

Background technology

By DE 299 11 281 U1 known a kind of with the rapid connector being connected or engaging hose line, this quickly connects Clutch includes inserting parts and containing component.Described parts can releasably and liquid seal ground clamping each other.Logical flowing through In road, the valve of the spring-loaded with closing element arranges in two parts of described rapid connector, wherein said closedown Element loads by compression spring.The most spherical described closing element is inserting and the state linked together of containing component Lower holding is mutually opened.During jointer parts are separate, described closing element is pressed into its valve seat by compression spring In and seal the pipeline that is connected with re-spective engagement device parts in this way.

Such problem, the i.e. content when described jointer parts separate it is also typically present in self-packing jointer Can flow out from pipeline.Although the valve in jointer parts prevents pipeline from the most persistently keeping opening wide, but separately time The outflow of pipeline content is still there will be in the closing process of valve.

Especially to cryogen, separately time, there is also freezing or atmospheric moisture freezing on valve of pipeline content Knot.Now this may cause, it is impossible to close valve closing the most hermetically and pipeline content cannot be stoped to flow out.This is especially for flammable Medium pipeline is serious in terms of fire hazard.

Summary of the invention

The task of the present invention is, especially for cryogenic liquid pipeline, when jointer separates in terms of its leakage pair As improved by rapid connector known in the art.Meanwhile, even for flammable or constitute explosive mixture The pipeline of medium, described jointer also should have high fire resistance under separated position.

This task is solved by subject of the present invention.Accordingly, present invention contemplates a kind of for by the pipeline of water conservancy diversion that This rapid connector engaged, this rapid connector includes:

-the first joint elements and

-the second joint elements, and

For at the sealing member of state lower seal said two joint elements that is engaged with each other.Described rapid connector has lock Determine mechanism, in order to be detachably connected from each other by said two joint elements, wherein

-the first joint elements have the first valve gear, and the second joint elements have the second valve gear.Said two valve fills Each in putting includes an axially movable valve and a corresponding valve seat, thus closes up at valve and valve seat State under fluid seal the corresponding fluids passage of described joint elements hermetically.Described valve is particularly preferably embodied as valve disc. The valve of the jointer assembled, namely valve when joint elements couple together are arranged axially opposedly, its In the valve of the first valve gear there is opening, a tappet keeps in the openings axially translatablely, so that described tappet Can move to the second position from primary importance.Here, described tappet in the second position compared with in primary importance from The valve of the first valve gear stretches out farther so that described tappet when joint elements are bonded together by said two valve Keep being separated from each other and thus make the fluid passage of joint elements to communicate with each other.Described tappet can be relative by means of locking system In valve card is locked in the axial second position, to keep valve gear to open.Described locking mechanism is with described locking system effect even Connect, thus when operating locking mechanism so that joint elements that said two is engaged with each other are disengaged, at described joint elements Just released the locking to described tappet before Fen Kai, and said two valve combines with corresponding valve seat and thus seals The fluid passage of joint elements.

In described mechanism, it is locked at before joint elements separate by releasing and first valve is directed in its valve seat, logical Cross such an arrangement avoids and there may also be fluid when separately joint elements and flow out from valve gear.

In order to realize high fire resistance or the fire line of valve, valve has the primary sealing area of cone, and valve seat has circular cone The secondary sealing area of shape, wherein the subtended angle of primary sealing area is less than the subtended angle of secondary sealing area.Different cone angle is passed through in utilization (Koni) the high extruding force being applied on annular sealing surface obtained, it is achieved that the sealing of valve gear, this be sealed in as The high-temperature load occurred during fire is lower and can reliably send out in the cryogenic media with the corresponding low temperature of valve gear Wave effect.Especially for cryogenic media, sealing can be improved further by the potted component of low temperature elasticity.Accordingly, exist Setting in the improvement project of the present invention, at least one sealing surface in the sealing surface of valve and the sealing surface of corresponding valve seat has low The sealing ring of the plastics sealing element of tenderness, such as low temperature flexibility.Such as politef or fluoroelastomer are suitable as institute State the material of sealing ring.

Such as when on the pipeline that pulling force is unexpectedly applied to utilize jointer to connect, according to the rapid connector of the present invention Particularly it is also used as urgent Detaching and Lapping device.To this end, described locking mechanism includes trip gear, make in default tension When using on the pulling device being connected on this trip gear, trip gear operation locking mechanism also makes joint elements separately.

Accompanying drawing explanation

The present invention is described in detail below by accompanying drawing.The most identical reference represents identical or corresponding Element.Wherein,

Fig. 1 illustrates that the schematic transverse cut-away of the parts of the rapid connector according to the present invention, described jointer are in In the operating position that valve gear is opened；

Fig. 2 is shown in separation process the rapid connector before the joint elements of jointer separate；

Fig. 3 illustrates the joint elements of the described rapid connector after separation；

Fig. 4 illustrates the details of the valve gear being designed to disc valve of rapid connector；And

Fig. 5 illustrates the application of the rapid connector 1 according to the present invention.

Detailed description of the invention

Fig. 1 illustrates under the state that in operating position, the i.e. first joint elements 3 and the second joint elements 5 link together The transverse sectional view of rapid connector 1.

Two joint elements 3,5 are connected hermetically with sealing member 7.Joint elements 3,5 utilize the lock schematically shown at this Determine mechanism 9 to be detachably connected from each other.Here, joint elements 3,5 are pressed to together by locking mechanism vertically, thus to joint Sealing member between parts 3,5 applies enough extruding forces to realize sealing.For the conducting of cryogen, preferably by low tenderness Property material, if politef (PTFE) and/or fluoroelastomer are for sealing member 7.

Each in joint elements 3,5 has valve gear 11 or 13, in order to the fluid of sealing engagement parts 3,5 leads to Road.The first valve gear 11 and the first valve gear 13 of the second joint elements 5 in first joint elements are designed to disk here Valve.Described disc valve includes valve 15,17 and the valve seat 19,21 of valve disc form respectively.Described valve gear can also have composition valve The valve of form beyond dish, such as with piston or the valve of spherical form.Described dish type is favourable, because its sky required vertically Between less and two faces pointed to each other of each valve are the most fully or even completely exhausted out therebetween when shut-off valve assembly Fluid.

Time together with valve 15,17 is brought together into corresponding valve seat 19,21, valve 15,17 is axially movably supported by also And the corresponding fluids passage 31,51 of fluid-tight ground sealing engagement parts 3,5.Shown in Fig. 1 of joint elements 3,5, that In this position engaged, two valves 15,17 are arranged axially opposedly.

In the case of the specific embodiment schematically shown in being not limited to Fig. 1, one according to the present invention preferred Improvement project, two valves 15,17 are connected or spring-loaded with a spring 18 respectively, and wherein said spring is axially towards valve The direction of seat 19,21 applies power to valve 15,17.By the spring force applied, valve gear 11,13 leaves joint elements 3,5 points Time close.

The valve 15 of the first valve gear 11 has opening 150, and tappet 152 axially movably keeps in the openings.Specifically Ground, in FIG shown in the form of implementation according to the present invention in, be provided with for this that axially extend, be fixed on the first valve 15 On pipe 155, this pipe be used as tappet 152 director element.Tappet 152 can be along the longitudinal sliding motion of pipe in pipe 155.

By holding axially mobile to tappet 152, this tappet can move to the second position from primary importance, Wherein compared with in primary importance, tappet 152 is extending out farther from the valve 15 of the first valve gear 11 in the second position.Tappet 152 do not stretch out in primary importance.Accordingly, tappet end is concordant with valve 15 or bounces back relative to opening 150.

Here, in operating position shown in FIG, tappet 152 is in the second position, i.e. stretches out from valve 15.

Additionally, the first joint elements 3 have locking system 110.Tappet 152 blocks relative to valve 15 by locking system 110 It is locked in the axial second position shown in Fig. 1.This locking system is preferably configured as lock pin 111.Described lock pin passes through In the radially ingress pipe 155 of the hole 156 being arranged on the shell of pipe 155, so that tappet 152 is locked in operating position.Due to Tappet 152 is locked in the axial second position, tappet overcome in operating position that applied by spring 18, act on valve 15, Spring force on 17 keeps two valves 15,17 to be separated from each other, thus valve gear 11,13 is maintained at open mode and thus makes two Individual fluid passage 31,51 communicates with each other.

By Fig. 1 it is also envisaged that locking mechanism 9 and locking system 110 are effect connections.Concrete by Fig. 1 Embodiment is considered merely as exemplary at this.In an illustrated embodiment, shown locking mechanism has rotating element 90, this rotation unit Part is with eccentric 91.When the rotation of described rotating element, described eccentric actuating linkage 95, this lever fixes to clamp Element 96.Described clamping element is surrounded two flanges 93,94 of two joint elements 3,5 and is passed through by pressure radially Two joint elements 3,5 are clamped together by the spigot surface 97 tilted on flange 93,94 and/or clamping element 96.Although having The embodiment of clamping element and flange constitutes the particularly preferred layout knot for being clamped together by two joint elements 3,5 Structure, but locking mechanism as element shown in the figure be only for display when being disengaged the motor process in principle.Cause This, it is possible to use other type of locking mechanism.Here, the example of the present invention and be advantageously improved scheme, also include passing through The clamping element of corresponding controlling curve realization and the motion of locking system.DE 10 2,005 006 088 A1 illustrates A kind of such mechanism, its motion relating to clamping element and the urgent content triggered also serve as present context and completely draw With.

As by Fig. 1 finding, when operating locking mechanism 9 so that two joint elements being engaged with each other 3,5 are disengaged, Just relieving the locking to tappet 152 here by rotating of rotating element 90 before joint elements separate, its method is, with The lock pin 111 that rotating element 90 effect connects moves radially outwards and is thus extracted from the opening 156 of pipe 155. Due to the power applied by spring 18, together with valve 15,17 is brought together into corresponding valve seat 19,21 and thus sealing engagement parts 3, the fluid passage 31,51 of 5.

As it can be seen, no longer retain the appearance that the fluid carried by pipeline is also possible to be located therein between valve 15,17 Long-pending.The volume retained is the least.Here, when said two valve closes up, fluid is by the region between valve 15,17 Discharge.This advantageously achieves, when joint elements separate almost without or even wholly without fluid flow out.Two joints The final of parts separately realizes by unclamping clamping block 96.In the example shown in Fig. 1 and Fig. 2, grasped by locking mechanism for this Make lever 95, so that clamping block 96 radial outward movement.To this end, Fig. 3 illustrate two joint elements 3 after being disengaged, 5。

The fluid passed through is guided to flow out, according to the rapid connector of the present invention owing to completely avoid completely or the most almost It is particularly suited for the conveying to all types dangerous substance.Described dangerous substance potentially includes inflammable, explosive or environmentally hazardous Material.Described rapid connector apply also for especially transporting low temperature medium, especially have burning or the cryogenic media of explosion danger. Here it is specifically contemplated that the fuel gas of low-temperature liquefaction.This natural gas being particularly suited for low-temperature liquefaction or methane.Engaging When parts 3,5 points are opened, particularly combine with the design that disc valve 11,13 is sealed that it will be illustrated that below, root Freezing or the freezing of atmospheric moisture present in the region of sealing member of separately time medium self is avoided according to the mechanism of the present invention Knot.Sealing surface region medium freeze to cause the lasting leakage of valve gear.

Another characteristic of rapid connector according to the present invention is, can be realized quickly by operation locking mechanism simply Separate.Thus, urgent Detaching and Lapping device particularly it is also used as according to the rapid connector 1 of the present invention.To this end, in the present invention Improvement project in, locking mechanism 9 includes trip gear, described trip gear having predetermined action of pulling stress to connect Operate locking mechanism 9 time on pulling device on this trip gear and make joint elements 3,5 points open.In the example shown, Cable traction device 60 is set as pulling device.If applying to draw on described pulling device or described cable traction device Power, rotating element 90 rotates the most in the example shown, has both achieved tappet 152 by the radial outward movement of clamping block 96 whereby Unblock, achieve again the unblock of described locking mechanism.Now, described cable traction device can connect with being connected to one of them The hose line closed on parts is laid abreast, and wherein its length should be chosen as being shorter than the length of described pipeline.If unexpectedly Occur in that the situation that described hose line is tightened up, the most described cable traction device were first in pulling force before hose line and make With lower and made joint elements 3,5 points open before threshold tensile force is applied on hose line.Disengagement structure shown in Fig. 1 is special It is not designed to, makes cable traction device be fixed on the first joint elements 3.Accordingly, hose line to be protected is needed to connect at this On joint elements 3.

In addition to for locking tappet 152, tappet can also do so with being connected with locking mechanism 9 so that is engaging First parts 3,5 make two joint elements 3,5 connect sealed against one anotherly when being joined together, and borrow after connecting hermetically Help locking mechanism to make tappet 152 axially movable, thus two valves 15,17 are pressed off and thus make joint elements 3,5 each other Fluid passage 31,51 is opened and communicates with each other.This also achieves the connection of joint elements 3,5, and will not be during clutch The outflow of fluid occurs.

If additionally, joint elements 3,5 are configured to double walled as also in the embodiment shown in Fig. 1 to Fig. 3, this Pipeline for cryogen is also advantageous.To this end, joint elements 3,5 have inner wall element 32,52 and wrap at intervals Enclose the outer wall element 33,53 of inner wall element 32,52.Sealing member 7 is preferably provided to, i.e. the junction surface when being joined together Two inner wall element 32,52 of part 3,5 connect hermetically.This is for also realizing good heat insulation on bonding station Favourable.But such as it is also contemplated that such connection, as welded inner wall element and outer wall element in following region, in this district In territory, sealing member 7 seals two joint elements 3,5 relative to external environment condition.

Here, according to a particularly advantageous improvement project of the present invention, the most as shown in FIG., jointer 1 is designed to, and makes Joint elements 3,5 are also formed in two joint elements 3,5 and include double wall on bonding station when being joined together Arrangement.So that the further minimum heat losses on described bonding station.

But in the double walled form of implementation of rapid connector 1, there will be such problem, i.e. to realize enough machines Tool stability.Being particularly likely to occur the biggest power vertically due to described locking, described power must be delivered to from wall part On internal wall member with potted component, in order to realize sealing reliably.In order to mechanically make joint elements 3,5 stable and Between inner wall element and outer wall element 32,52,33,53, transmission has the power of component vertically, in the improvement side of the present invention Setting in case, the inner wall element 32,52 of joint elements 3,5 and outer wall element 33,53 have the wall of radially mutually interlocking Section 320,520,330,530, described wall segment prevents outer wall element 33,53 to be axially moveable relative to inner wall element 32,52. The wall segment 320,330 of the mutually interlocking of the first joint elements 3 and the wall segment of the mutually interlocking of the also second joint elements 5 520,530 indicate in figure 3.

In order in accordance with the spacing between each wall elements, use suitable between inner wall element and outer wall element 32,33 or 52,53 When, the distance piece 40 that is arranged between inner wall element and outer wall element.

Fig. 4 illustrates the details of the valve gear 11,13 being designed as disc valve.For the sake of clarity, there are some parts, such as valve Opening 150 and spring 18 in 15 are shown without at this.The valve 15 of the first valve gear 11 and/or the valve 17 of the second valve gear 13 have There is the primary sealing area 153 or 173 that taper is tapered.Valve seat 19,21 also has the secondary sealing area 193 or 213 of taper.As by Fig. 4 is seen, the subtended angle 154 or 174 of primary sealing area 153 or 173 is less than the second sealing of corresponding valve seat 19 or 21 The subtended angle 194,214 in face 193 or 213.

Another characteristic of valve gear 11,13 is, valve 15,17 and/or the conical seal (contact) face of corresponding valve seat 19,21 153, at least one in 173 is respectively provided with the plastics sealing element of low temperature flexibility.To this end, the concrete example shown in the diagram In employ the sealing ring 23 of low temperature flexibility.The most in this example, sealing ring 23 is separately positioned on valve 15 or 17.In order to incite somebody to action Sealing ring 23 is fixed on sealing surface 153 or 173, embedded in sealing surface 153,173 annular ring around groove 230, sealing ring 23 are positioned in this groove.

Even if at low temperatures, the sealing ring 23 of low temperature flexibility remains to realize sealing reliably.Additionally, the sealing surface of correspondence 153, to realize along described sealing surface one narrow for the different cone angle (Koni) 174,174 and 194,214 of 193 or 173,213 The sealing of wire loop.The highest extruding force acts on described narrow ring.Even if may deposit on sealing surface in closing process Freezing, this icing can also be eliminated by described high extruding force.Additionally, described sealing be ensure that by different cone angles, Even if at a temperature of when breaking out of fire and accordingly high, even if when sealing ring 23 is impaired or is even destroyed, also will not There is seal failure in valve gear 11,13.

Shown in Fig. 5, a kind of of rapid connector 1 according to the present invention applies.Particularly illustrate in Figure 5 a kind of for Loading or the device of conveyance fluid between discharge mechanism 80 and means of transport 82.In the 5 embodiment of figure 5, means of transport 82 is Boats and ships 84.The applying in sea-freight field or be also specifically to have especially in the shipping of liquids and gases of jointer according to the present invention Profit, this is because on the one hand avoid discharge, on the other hand also avoid carried fluid by seawater pollution.But described dress Putting can be the most such as loading and/or the unloading of train wagon, truck and aircraft.In example shown In, load or discharge mechanism 80 is arranged in land.But ship-to-ship, marine brill can also be implemented by according to assembly of the invention Platform shaft to ship or ship to the loading of buoy (Boje) or unloading.

In order to by loading or natural to means of transport 82 or oppositely conveyance fluid, such as low-temperature liquefaction of discharge mechanism 80 Gas, is loading or is laying the pipeline 55 with rapid connector 1 between discharge mechanism 80 and means of transport 82, and wherein pipeline 55 wraps Including flexible pipe 56, one of joint elements 3,5 are arranged on this flexible pipe.In the example depicted in fig. 5, the first joint elements 3 are connected to On flexible pipe 56.

As also as can be seen by Fig. 5, rapid connector 1 is arranged between loading or discharge mechanism 80 and means of transport 82 Intermediate space 83 in.One end of pulling device is arranged on locking mechanism 9, and the other end is arranged on institute's means of transport or sets Put and loading or on the side of discharge mechanism 80, so that pulling device extends along flexible pipe 56.In the example depicted in fig. 5, It is provided with cable or cable traction device 56 as pulling device.It is equally useful tinsel or chain.Additionally, tractive fills here The one end put is fixed on loading or discharge mechanism 80.Contrary alternative side fixing on means of transport 82 can also be used Case.In this case, described rapid connector is preferably provided near loading or discharge mechanism 80.

As the most visible by Fig. 5, the length of described pulling device so designs, i.e. at means of transport 82 away from dress Carry or during discharge mechanism 80, flexible pipe 56 due to means of transport 82 away from and on pulling device, apply pulling force before tensioning. Thus, before flexible pipe 56 is in tension, operate locking mechanism 9 by pulling device.The device provides particularly peace The advantage of full technical elements.When being loaded boats and ships or unloading, jointer is generally arranged inside bulkhead in deck area. Owing to fluid flows out in deck area and thus dangerous substance will not arrive surrounding enviroment in separately jointer limit In, so this is favourable.But if urgent situation about separating occurs at this, then due to the heaviest, be connected to The disengaging of the flexible pipe of joint elements thereon and be there is the biggest danger in the personnel worked above deck.

If use on the other hand according to the present invention, band is quickly engaged just like the device illustrated in Fig. 5 Device, then flexible pipe 56 falls in the intermediate space 83 between means of transport and loading or discharge mechanism 80 together with the joint elements 3 of weight, Boats and ships 84 are namely dropped in water therebetween.The most no longer there will be the danger to personnel.Meanwhile, although jointer Through on the water surface separately and therefore described flexible pipe can fall into the water, but still avoided by special separating mechanism and carried Fluid flows out in surrounding enviroment.

Additionally, described device additionally provides, when carrying flammable or explosive fluid, the advantage that fire risk is little, this be because of Source for initiation fire is typically found in means of transport 82 or loads or on discharge mechanism 80.

Additionally, also show another improvement project of the present invention in Figure 5.As visible by this schematic diagram, Installing sleeve or the shell 25,27 surrounding joint elements 3,5 on joint elements 3,5, described sleeve or shell are at joint elements 3, axially overlap under 5 states being joined together.Sleeve 25,27 prevents rainwater or splash water from may fall joint elements 3,5 With on locking mechanism 9.Otherwise, particularly when transporting low temperature fluid, this can cause freezing in adverse conditions.This ice is now Possible blocking lockout mechanism again, or surround joint elements 3,5 with ice sheet, thus cause difficulty to the separation of joint elements 3,5.

Reference numerals list

1 rapid connector

3 first joint elements

5 second joint elements

7 sealing members

9 locking mechanisms

11 first valve gears

13 second valve gears

15,17 valve

18 springs

19,21 valve seat

The sealing ring of 23 low temperature flexibilities

25,27 sleeve

31,51 fluid passage

32,52 inner wall element

33,53 outer wall element

40 distance pieces

55 pipelines

56 flexible pipes

60 cable traction devices

80 load or discharge mechanism

82 means of transports

Intermediate space between 83 80,82

84 boats and ships

90 rotating elements

91 eccentrics

93,94 flange

96 clamping elements

97 spigot surfaces tilted

110 locking systems

111 lock pins

Opening in 150 15

152 tappets

153,173 primary sealing area

154, the subtended angle of 174 153,173

155 pipes

Opening in 156 155

193,213 secondary sealing area

194, the subtended angle of 214 193,213

230 grooves

Claims (14)

1. one kind is used for the rapid connector (1) being engaged with each other by the pipeline guiding fluid, including:

-the first joint elements (3), and

-the second joint elements (5) and

For at the sealing member (7) of state lower seal the two joint elements (3,5) that is engaged with each other, and

-locking mechanism (9), for being removably engaged with each other said two joint elements (3,5)；Wherein

-the first joint elements (3) have the first valve gear (11), and the second joint elements (5) have the second valve gear (13), and And each in two valve gears (11,13) has axially movable valve (15,17) and corresponding valve seat (19,21), Thus the corresponding fluids passage of fluid sealing engagement parts hermetically (3,5) at valve (15,17) and valve seat closes up (31,51), and each valve (15,17) arranges axially opposedly, wherein, the valve (15) of the first valve gear (11) has opening (150), tappet (152) can axially movably be kept in said opening, so that tappet (152) can move to from primary importance In the second position, wherein, compared with in primary importance, tappet (152) is in the second position from the valve of the first valve gear (11) (15) stretching out farther, thus tappet (152) makes two valves (15,17) protect when joint elements (3,5) are joined together Hold and be separated from each other and the fluid passage (31,51) of thus joint elements (3,5) communicates with each other；

And tappet (152) can be locked in axial relative to the valve of the first valve gear (11) (15) card by locking system (110) In the second position, and the effect of locking mechanism (9) and locking system (110) is connected, thus is operating locking mechanism (9) so that two Before described joint elements separate, the locking to tappet (152) is just released when the joint elements (3,5) being engaged with each other separate, and And two valves (15,17) be brought together into corresponding valve seat (19,21) together with and sealing engagement parts (3,5) fluid passage (31, 51)。

Rapid connector the most according to claim 1 (1), it is characterised in that valve (15,17) has the first sealing of taper Face (153,173), and valve seat (19,21) has the secondary sealing area (193,213) of taper, wherein primary sealing area (153, 173) subtended angle (154,174) is less than the subtended angle (194,214) of secondary sealing area (193,213).

3. according to the rapid connector (1) according to any one of above-mentioned two claim, it is characterised in that valve (15,17) has There is the primary sealing area (153,173) of taper, and valve seat (19,21) has the secondary sealing area (193,213) of taper, Qi Zhongfa The sealing surface (153,173) of (15,17) and corresponding valve seats (19,21) at least one has low temperature flexibility respectively Plastics sealing element.

Rapid connector the most according to claim 1 (1), it is characterised in that locking mechanism (9) includes trip gear, Predetermined action of pulling stress to time on the pulling device be connected to described trip gear, described trip gear operation locking machine Structure (9) also makes joint elements (3,5) separately.

Rapid connector the most according to claim 1 (1), it is characterised in that connect in joint elements (3,5) upper installation encirclement Closing the sleeve (25,27) of parts (3,5), each described sleeve weighs vertically when joint elements (3,5) are joined together Folded.

Rapid connector the most according to claim 1 (1), it is characterised in that joint elements (3,5) are designed to double wall , there is inner wall element (32,52) and surround the outer wall element (33,53) of inner wall element (32,52) with separating spacing, wherein, Two inner wall element (32,52) in the state lower seal (7) connection joining part part hermetically (3,5) being joined together.

Rapid connector the most according to claim 6 (1), it is characterised in that the inner wall element of joint elements (3,5) (32, 52) and outer wall element (33,53) has the wall segment (320,520,330,530) of radially mutually interlocking, described wall segment is prevented Only outer wall element (33,53) moving axially relative to inner wall element (32,52).

Rapid connector the most according to claim 1 (1), it is characterised in that tappet (152) acts on locking mechanism (9) Connect so that first make two joint elements (3,5) connect when joint elements (3,5) are joined together sealed against one anotherly and After described being tightly connected, make tappet (152) axially movable by described locking mechanism, thus by two valves (15,17) that This presses off, and thus makes the fluid passage (31,51) of joint elements (3,5) open and communicate with each other.

Rapid connector the most according to claim 1 (1), it is characterised in that valve (15,17) respectively with a spring (18) Engaging, wherein, spring (18) applies power axially towards the direction of valve seat (19,21) to valve (15,17), thus at joint elements Shut-off valve assembly (11,13) when (3,5) separate.

10. for loading or a device for conveyance fluid between discharge mechanism (80) and means of transport (82), wherein, at dress Carry or lay with rapid connector according to claim 1 (1) between discharge mechanism (80) and means of transport (82) Pipeline (55), wherein, pipeline (55) includes flexible pipe (56), and one in joint elements (3,5) is arranged on described flexible pipe, and Jointer is arranged in the intermediate space (83) between loading or discharge mechanism (80) and means of transport (82), and pulling device One end be fixed on locking mechanism (9), and the other end is fixed on means of transport or loads or the side of discharge mechanism (80) On face, pulling device length so determines, i.e. when means of transport is away from loading or discharge mechanism, at flexible pipe (56) due to transport Instrument (82) away from and before tensioning, apply pulling force operate locking mechanism to described pulling device.

11. devices according to claim 10, it is characterised in that described means of transport be boats and ships (84), train wagon or Truck.

12. devices according to claim 10, it is characterised in that described pulling device is cable, tinsel or chain shape Formula.

The application of 13. rapid connectors according to claim 1 (1), is used for engaging the pipeline for liquefied gas at low temp.

The application of 14. rapid connectors according to claim 13 (1), it is characterised in that the gas of described low-temperature liquefaction It is methane or the natural gas of low-temperature liquefaction of low-temperature liquefaction.