CN104763855B - Adjustable pipe connection device - Google Patents
Adjustable pipe connection device Download PDFInfo
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- CN104763855B CN104763855B CN201510090543.1A CN201510090543A CN104763855B CN 104763855 B CN104763855 B CN 104763855B CN 201510090543 A CN201510090543 A CN 201510090543A CN 104763855 B CN104763855 B CN 104763855B
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- ring
- face
- sealing
- socket
- connecting tube
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to an adjustable pipe connection device. The adjustable pipe connection device comprises a connecting pipe, an extensible pipe, a fastening device and a sealing device; the fastening device comprises an end cover, a screw, a nut, a driving ring, a snap ring, a supporting base and a push rod; the sealing device comprises a sealing ring and an extruding ring. According to the adjustable pipe connection device, the driving force which is provided for the fastening device and used for performing radial locking is converted into the pushing force which is transmitted to the sealing device and used for performing sealing after a certain extent of locking to implement the linkage matching of the fastening and sealing and accordingly the technical effect of the locking and sealing can be simultaneously implemented under the action of the single force to enable the technical effect of the locking and sealing to be successively or simultaneously achieved only through the continuous corresponding force and accordingly the operation of the locking and sealing is simple and convenient, the adjustable pipe connection device is particularly suitable for the abutting joint of connectors comprising flange short sections during underwater pipe maintenance, a welding flange after pipe cutting of the underwater pipe maintenance does not need to be accurately measured, and the connector abutting joint is short in sealing time and good in sealing effect.
Description
Technical field
The present invention relates to the maintenance of rigidity oil and gas pipes under water, specifically one scalable assembling pipe joint under water.
Background technology
The maintenance of oil and gas pipes under water, particularly for the maintenance of rigidity oil and gas pipes under water, usual employing method is to block piping failure section, docks new pipeline.The existing method for maintaining of rigid conduit under water includes mechanical connector maintenance and flange underwater maintenance, and the submarine pipeline after processing for mechanical connector method for maintaining requirement has preferable surface smoothness, to meet the sealing property requirement after adapter connects；For flange underwater maintenance, its method is that pipe end after dicing is welded to connect flange, mounting flange pipe nipple the most under water, makes flange spool dock with the flange of pipeline welding and realizes sealing.
In above-mentioned conventional flange submarine pipeline keeps in repair, there is techniques below problem in pipeline maintenance technology, i.e. after the centering of Underwater Welding flange and flange, distance degree of accuracy between flange is difficult to measure, and then affects the abutting joint of flange in conventional art, or cannot install because pipe nipple is long, or there is gap after pipe nipple installation, and then affecting the sealing effectiveness after pipe nipple docking, the particularly maintenance to some Large Underwater pipelines, it is the most considerable that it installs the expenses caused that lost efficacy.
Summary of the invention
For solving above-mentioned technical barrier, present invention is primarily intended to provide one scalable assembling pipe joint under water, its attachment means has pipeline extension function, acting pipe locking fixes function and metal sealing performance, and can effectively solve the length coupling in pipeline maintenance and location matches problem, make submarine pipeline easy to maintenance fast.
In order to achieve the above object, the main technical schemes that the present invention provides includes:
A kind of sealing device, comprising:
One first component, there is base portion, first extension and the second extension, described base portion has a joint face, one end of described first extension and the second extension is connected to the joint face of base portion, described first extension there is a primary sealing area and one first compress face, described second extension there is a secondary sealing area and one second compress face, the first of described first extension compresses the second of face and the second extension and compresses and have an angle α between face, between primary sealing area and the secondary sealing area of the second extension of described first extension, there is a preset distance H；And
One second component, have one the 3rd compress face and one the 4th compress face, it the 3rd compresses face and presses on the first of described first extension and compress face, and it the 4th compresses face and press on the second of described second extension and compress face, 3rd compresses face and the 4th compresses and has an angle β between face
Wherein, compress face and press on first when the 3rd of described second component compresses face and the 4th respectively and compress face and second and compress face and when the joint face of base portion is close, the angle of described angle α gradually expands, and makes the preset distance H between primary sealing area and secondary sealing area become big or big in change trend.
Two extruding compressing face surveyed in first component are compressed by two outside second component, outside first component two sealing surfaces are expanded outwardly, and jam-packed is by sealing surface, realize sealing, better seal effect can be obtained, be especially adapted to multiple situation, as by the relative position between sealing surface, relative distance constant time, can also reach good sealing effectiveness, if desired for when realizing passive gearing sealing, this kind of sealing means is the most applicable.
In one embodiment of sealing device of the present invention, the entirety of the base portion of described first component, the first extension and the second extension be cross section be the layout of K shape.To obtain better seal effect when other conditions (such as compress active force, compress deflection or the performance of elastic material itself) are constant, or in the case of being intended to obtain identical sealing effectiveness, required deflection is less, in other words can be more laborsaving.
In one embodiment of sealing device of the present invention, described first extension has seal section and linkage section, the seal section being completely or partially located at described first extension of described primary sealing area, the lateral surface of the linkage section of described first extension and first compresses has an angle γ between face, make that there is between the joint face of base portion and the lateral surface of linkage section first pre-set space, to provide the space of described first extension deformation；
And/or
Described second extension has seal section and linkage section, the seal section being completely or partially located at described second extension of described secondary sealing area, the lateral surface of the linkage section of described second extension and second compresses has an angle γ between face, make that there is between the joint face of base portion and the lateral surface of linkage section second pre-set space, to provide the space of described second extension deformation.
In one embodiment of sealing device of the present invention, described 3rd compresses face and the 4th compresses the junction and first in face and compresses face and second and compress and have a preset distance between the junction in face, with the first extension, between the second extension and second component or the first extension, the second extension, between base portion and second component formed the 3rd pre-set space, inwardly extrude for second component.
In one embodiment of sealing device of the present invention, the base portion of described first component, the first extension and the second extension are integrated.
In one embodiment of sealing device of the present invention, described second component is located between the first extension of described first component and the second extension.
In one embodiment of sealing device of the present invention, described first component and/or second component are that elastomeric material is made.
In any one embodiment of the above-mentioned sealing device of the present invention, the quantity of described first component is two, and the quantity of described second component is one,
Wherein, described second component is additionally provided with the 5th and compresses face and the 6th and compress face, it the 5th compresses face and the 6th and compresses the structure in face and arrange and compress face and the 4th with the 3rd to compress face essentially identical so that the shape that the cross section entirety of described second component is big in middle part small in ends；
Two described first components are respectively arranged at the two ends of described second component, and wherein, the 3rd of described second component compresses face and the 4th and compress face, the 5th compress face and the 6th and compress face and press on the first of two first components respectively and compress face and second and compress face.
In one embodiment of sealing device of the present invention, the middle part of described second component is provided with more than one clearance space, when being provided with multiple, and hoop or axially arranged.
In one embodiment of sealing device of the present invention, the middle part of described second component is communicated with the through hole of its both sides.
The present invention also provides for a kind of radial tightening device, it is located between the inner and outer tubes of mutually socket, realize the radial direction locking between said inner tube and outer tube, wherein, this outer tube has the first connection end and the first socket end, its the first socket end is provided with socket passage, its the first connection end is for being connected with other pipelines (needing connected pipeline), this inner tube has the second connection end and the second socket end, its the second socket end is provided with socket section, and the socket section of said inner tube is arranged in the socket passage of this outer tube.
In one embodiment of radial tightening device of the present invention, comprising:
Snap ring, being sheathed on the outside of the socket section of said inner tube, and the most described outer tube axial restraint, the outside of described snap ring is provided with outer lug, this outer lug has the outer inclined-plane for compressing, and this outer inclined-plane is along the first socket end radial direction the most gradually evagination on the first bearing of trend connecting end；And
Driving ring, be sheathed on the outside of described snap ring, the inner side of described driving ring has internal projection, this internal projection has the interior inclined-plane for compressing, this interior inclined-plane is along the second socket end radial direction the most gradually convex on the second bearing of trend connecting end, and the most described outer tube is axially moveable
Wherein, the outer inclined-plane of the sheathed outer lug pressing on described snap ring in interior inclined-plane of the internal projection of described driving ring, when described driving ring is moved to the first connection end by the first socket end, the interior inclined-plane of the internal projection of described driving ring compresses the outer inclined-plane of the outer lug of described snap ring so that described snap ring holds the socket section of said inner tube tightly.
In this kind of structure, when promoting driving ring to be axially moveable, internal projection on driving ring gradually extrudes the outer inclined-plane of the outer lug of snap ring by interior inclined-plane, make snap ring radial contraction, the inner surface of snap ring compresses the outer surface of inner tube, realize inner tube is held tightly, and owing to snap ring is fixed relative to outer tube, it is achieved inner tube is connected with the fixing of outer tube.
In one embodiment of radial tightening device of the present invention, the quantity of the outer lug of described snap ring is two, three or more than four, axially distributed, to increase axial occlusal contact area, and makes uniform force；
And/or
The quantity of the internal projection of described driving ring is two, three or more than four, is correspondingly arranged with the outer lug of described snap ring, axially distributed, to increase axial occlusal contact area, and makes uniform force.
In one embodiment of radial tightening device of the present invention, the quantity of the internal projection of described snap ring is two, three or more than four, axially distributed, to increase axial occlusal contact area, and makes uniform force；
And/or
The quantity of the outer lug of described driving ring is two, three or more than four, is correspondingly arranged with the internal projection of described snap ring, axially distributed, to increase axial occlusal contact area, and makes uniform force.
In one embodiment of radial tightening device of the present invention, the medial surface of described snap ring is provided with zigzag latch, to improve the enclasping force to the said inner tube section of socket.
In one embodiment of radial tightening device of the present invention, the lateral surface of described snap ring is provided with zigzag latch, to improve the clamping force that described outer tube is socketed passage.
In one embodiment of radial tightening device of the present invention, the zigzag latch of described snap ring is that elastomeric material is made, in order to deform when holding tightly, improves and holds effect tightly.
In one embodiment of radial tightening device of the present invention, described snap ring is that elastomeric material is made.
In one embodiment of radial tightening device of the present invention, described snap ring is multi-petal shape, is connected to each other between adjacent petals, so that snap ring is more fitted with the outer surface of inner tube and the inner surface of driving ring, is mated, make stress evenly, it is to avoid the phenomenon of unbalance stress occurs, improve and hold effect tightly.Wherein, it is connected between the first lobe with last lobe or disconnects (including two lobes, when for two lobes, the side of two lobes connects, and opposite side can connect or disconnect).
In one embodiment of radial tightening device of the present invention, there is between the adjacent petals of described snap ring certain spacing distance, to improve the outer surface of snap ring and inner tube further and to drive the laminating of inner surface of ring, matching degree.
In one embodiment of radial tightening device of the present invention, it is cross-linked between the adjacent petals of described snap ring, concrete structure can be, the lobe that the lobe head of the first lobe connects the second lobe is first, the lobe WEILIAN of the second lobe connects the lobe tail of the 3rd lobe, the lobe head of the 3rd lobe connects the lobe head of pintongs and (when for even number lobe, can be connected to last from beginning to end, form a domain；When for odd number lobe, first can connect between last lobe and the first lobe or tail WEILIAN connects or disconnects, i.e. constitute a domain or do not constitute a domain).
In one embodiment of radial tightening device of the present invention, described clamp device also includes means of threaded drives, and drives described driving ring to be moved, by the gradually promotion of screw thread to the first connection end by the first socket end by this means of threaded drives, realize, to the gradually promotion driving ring, gradually locking.
In one embodiment of radial tightening device of the present invention, described means of threaded drives includes:
End cap, is sheathed on outside the socket section of said inner tube, has the first end face supplying to compress the upper surface of described driving ring；And
Screw rod, one end connects described end cap, and the other end connects described outer tube, and enters to realize to driving ring to compress driving by the spiral shell of screw rod.
In one embodiment of radial tightening device of the present invention, end cap is additionally provided with the second end face and through hole, and this through hole runs through the first end face and the second end face, and this screw rod is arranged in the through hole of described end cap, this screw flight section is bolted in the screwed hole of outer tube, and vice versa.
In one embodiment of radial tightening device of the present invention, described driving ring is made up of two or more semi-ring, to improve tightly snap ring is held degree.
In any one embodiment of the above-mentioned radial tightening device of the present invention, the internal face of the socket passage of described outer tube is provided with a First terrace, the described snap ring axial restraint supporting the most described outer tube of realization by this First terrace.
In any one embodiment of the above-mentioned radial tightening device of the present invention, the outside wall surface of the socket section of said inner tube is provided with a First terrace, and described snap ring realizes the axial restraint of relative said inner tube by the support of this First terrace.
In one embodiment of radial tightening device of the present invention, described clamp device also includes supporting seat, it is sheathed on the outside of the socket section of said inner tube, its upper surface is supported in the lower surface of described snap ring, its lower surface is provided with the cambered outwards flange in footpath, the cross section making described support seat is L-shaped, and the lower surface of this flange is supported in the First terrace of the socket passage of described outer tube, and described driving ring is not supported support by this support seat.
Present invention also offers a kind of radially fit sealing device, comprising:
Any of the above-described kind of radial tightening device；And
Sealing device, it is located between the socket section of said inner tube and the socket passage of this outer tube,
Wherein, when driving described driving ring to realize radially clamping, realize the promotion to sealing device simultaneously and seal.
By being converted into when being locked to a certain degree pass to by the way of sealing device is used for the motive force sealed by being supplied to the driving force that radial tightening device is used for radially locking, present invention achieves fastening and seal the gearing cooperation of the two, it is thus possible to realize locking and the technique effect sealed under the effect of single active force simultaneously, the present invention is had only to continuously and applies corresponding active force, i.e. can sequentially or simultaneously reach locking and the technique effect sealed, make locking and the operation sealed easier, for needing to be carried out situation about operating by mechanical hand, significantly improve operating efficiency, achieve and such as reduce operating procedure, reduce the operating time, reduce a series of advantages such as probability of makeing mistakes.
In one embodiment of the present invention radially fit sealing device, described sealing device is any of the above-described kind of sealing device, wherein, described driving circulating application adds the power of supporting to the sealing ring of described sealing device or extrusion ring, compresses face and second to first and compresses face to provide and compress active force.Wherein, described sealing device can be annular.
In one embodiment of the present invention radially fit sealing device, the socket passage of described outer tube is provided with second step face, and one end of described sealing device is supported in described second step face, and the other end accepts supporting of the lower surface of described driving ring.
In one embodiment of the present invention radially fit sealing device, the socket section road of said inner tube is provided with second step face, and one end of described sealing device is supported in described second step face, and the other end accepts supporting of the lower surface of described driving ring.
In one embodiment of the present invention radially fit sealing device, described first component is two, the base portion of each described first component also has a load-carrying surface, the load-carrying surface of the base portion of one described first component accepts the support in this second step face, and the load-carrying surface of the base portion of another described first component is resisted against the lower surface of described driving ring.
In one embodiment of the present invention radially fit sealing device, described sealing device is additionally provided with press part, and described sealing device accepts supporting of the lower surface of second step face and/or driving ring by this press part, and described press part preferably non-elastic material is made.
In any one embodiment of the present invention above-mentioned radial direction fit sealing device, also include that some push rods, the two ends of described push rod are resisted against the lower surface of described driving ring and the load-carrying surface of the base portion of described first component respectively,
Wherein, when being provided with described support seat, the flange of described support seat is provided with the through hole passed for described push rod.
In one embodiment of the present invention radially fit sealing device, one end of described push rod is fixing with the lower surface of described driving ring to be connected.
In one embodiment of the present invention radially fit sealing device, described first component is plural even number.
The present invention also provides for a kind of scalable assembling pipe joint, comprising:
One connecting tube, has the first connection end and the first socket end, and its first socket end is provided with socket passage, and its first connection end is for being connected with other pipelines (needing connected pipeline)；And
One telescoping tube, there is the second connection end and the second socket end, its the second socket end is provided with socket section, in the adjustable socket passage being arranged in this connecting tube of the socket section of described telescoping tube, and to make the second distance being connected between end of the first connection end and this telescoping tube of this connecting tube be adjustable.
Wherein, due to the telescoping tube in telescopic assembling pipe joint with connecting tube relative to retractable, make under preset state (generally non-hold tightly with under non-tight state), socket passage within connecting tube allows telescoping tube freely to stretch in certain distance (this distance enough eliminates error), therefore, being easy to connect the docking of two segment pipes that distance exists bigger error, final realization connects and seals.First connection end (can arrange flange) of connecting tube can be first connected by it with the connected pipe on one side in two segment pipes, again the second connection end (can arrange flange) of telescoping tube is connected with the connected pipe of another side in two segment pipes, in the process, telescoping tube eliminates the range error of two edge connectors by stretching, after both sides Flange joint puts in place, i.e. can utilize in connecting tube hold device tightly and sealing system realizes being connected and sealing.
In one embodiment of scalable assembling pipe joint of the present invention, also including any of the above-described kind of radial tightening device, it is located between the socket section of described telescoping tube and the socket passage of connecting tube, it is achieved the radial direction locking in precalculated position of described telescoping tube and connecting tube.
Wherein, can be in the first socket end (the above-mentioned non-flange end arranging flange one end can be remote from) of connecting tube, (means of threaded drives such as can be used by promoting driving ring to be axially moveable, as above the form of jack panel), the lozenges on ring is driven to extrude the lozenges of snap ring, make card tooth radial contraction, it is achieved hold tightly.
In one embodiment of scalable assembling pipe joint of the present invention, also include any of the above-described kind of sealing device, it is located between the socket section of described telescoping tube and the socket passage of connecting tube, primary sealing area is sealed in the internal face of the socket passage of connecting tube, secondary sealing area is sealed in the outside wall surface of the socket section of telescoping tube, it is achieved described telescoping tube and the connecting tube sealing in precalculated position.
In one embodiment of scalable assembling pipe joint of the present invention, also include any of the above-described kind of radially fit sealing device, it is located between the socket section of described telescoping tube and the socket passage of connecting tube, primary sealing area is sealed in the internal face of the socket passage of connecting tube, secondary sealing area is sealed in the outside wall surface of the socket section of telescoping tube, it is achieved described telescoping tube and the connecting tube radial direction lock sealing in precalculated position.
Wherein, when being fixed with push rod on driving ring, while radial tightening device is held tightly, push rod promotes press part (such as baffle ring), compression seal system space, now the lozenges of the second component in sealing system (such as extrusion ring) clamp-ons the space (such as the groove of sealing ring) between two extensions of first component, makes sealing ring strut to contacting with connecting tube inner surface and telescoping tube outer surface respectively and crimp, it is achieved to seal.
In any one embodiment of the present invention above-mentioned scalable assembling pipe joint, the outside of the second connection end of described telescoping tube is provided with the stop part of an evagination, to prevent telescoping tube from detaching connecting tube, its external diameter adapts with the internal diameter of the less internal diameter section in the second step face of the socket passage of described connecting tube.
Being preferably, the internal face of the less internal diameter section in the second step face of the socket passage of described connecting tube is provided with guide, and this guide is to arranging by stop part, and constitutes the guiding to stop part, to prevent telescoping tube rotation in connecting tube, is more conducive to seal.
This stop part is projection, is fixed on telescoping tube by screw, and this guide is gathering sill, is opened in the internal face of connecting tube, and this projection is slidedly arranged in this gathering sill.
The invention has the beneficial effects as follows:
The scalable assembling pipe joint of the present invention not only can realize connection and the sealing of pipeline, and can be by regulation telescoping tube fixed position in connecting tube, regulate two distances connected between end, the error of actual measurement can be eliminated, solve size matching problem, and location matches problem can be solved, reduce mount stress, make system more stable, more reliable.
Accompanying drawing explanation
Fig. 1 is the front view of one embodiment of scalable assembling pipe joint of the present invention；
Fig. 2 is the left side view of Fig. 1；
Fig. 3 is the right side view of Fig. 1；
Fig. 4 is the sectional view of one embodiment of scalable assembling pipe joint of the present invention；
Fig. 5 is the partial enlarged drawing A of Fig. 4；
Fig. 6 is the partial enlarged drawing B of Fig. 4；
Fig. 7 is the sectional view of the connecting tube of one embodiment of scalable assembling pipe joint of the present invention；
Fig. 8 is the partial sectional view in one embodiment of the invention；
Fig. 9 is the decomposition view (annular element therein only illustrates its local) of Fig. 8；
Figure 10 is the axonometric chart (showing the first end) driving ring in one embodiment of the invention；
Figure 11 is the axonometric chart (showing the second end) driving ring in one embodiment of the invention；
Figure 12 is the partial sectional view driving ring in one embodiment of the invention；
Figure 13 is the axonometric chart of the snap ring in one embodiment of the invention；
Figure 14 is the partial sectional view of the snap ring in one embodiment of the invention；
Figure 15 is the cross-sectional view of the sealing device in one embodiment of the invention；
Figure 16 is the decomposition view of Figure 15；
Figure 17 is the axonometric chart of the sealing ring of the sealing device in one embodiment of the invention；
Figure 18 is the axonometric chart of the extrusion ring of the sealing device in one embodiment of the invention.
[main element symbol description]
Connecting tube 1, socket passage 10,
First internal diameter section the 101, second internal diameter section 102,
3rd internal diameter section the 103, the 4th internal diameter section 104,
First terrace 111, second step face 112,
Back pressure hole 12, gathering sill 13,
Telescoping tube 2, socket section 20, projection 21,
Clamp device 3,
Support seat 31,
Snap ring 32,
Lobe 321, latch 322, outer lug 323, outer inclined-plane 324,
Driving ring 33,
First the 331, second extension 332, extension, internal projection 333, interior inclined-plane 334,
End cap 34,
Nut 35, screw rod 36,
Push rod 37,
Sealing device 4,
Sealing ring 41,
Base portion 410,
First extension 411,
Primary sealing area 4111, first compress face 4112,
Second extension 412,
Secondary sealing area 4121, second compress face 4122,
Open slot 413,
Extrusion ring 42,
Through hole 4201,
3rd compress face the 4203, the 4th compress face 4204,
5th compress face the 4205, the 6th compress face 4206,
Seat ring 43, baffle ring 44,
First pre-set space S1, the second pre-set space S2, the 3rd pre-set space S3,
Angle α, angle β, angle γ,
Distance H1, distance H2, distance H3, distance H4.
Detailed description of the invention
In order to make it easy to understand, the present invention is described in detail below in conjunction with the accompanying drawings.
Seeing Fig. 1 to Fig. 7, the scalable assembling pipe joint under water of one embodiment of the invention, it includes a connecting tube 2, clamp device 3 of 1, telescoping tube and two sealing devices 4.
First end of described connecting tube 1 is flange connection, for being connected with connected pipe one end (can be such as cutting after the welded flange of submarine pipeline)；
Second end of connecting tube 1 is as the stake body of clamp device 3, end face is provided with some screwed holes, wherein being provided with a circle screw rod 36 and nut 35, the activity that tightens (such as can be by rotating nut 35) of clamp device 3 provides for whole assembling pipe joint holds tightly and seals driving force；
Connecting tube 1 is internal is provided with socket passage 10, the internal face of socket passage 10 forms the first internal diameter section the 101, second internal diameter section 102 and the 3rd internal diameter section 103 that diameter reduces successively, first internal diameter section 101 and the second internal diameter section 102 junction form a First terrace 111, second internal diameter section 102 and the 3rd internal diameter section 103 junction form a second step face 112, described First terrace 111 is provided close to the second end of described connecting tube 1, corresponding installation clamp device 3, second step face 112 is provided close to the first end of described connecting tube 1, corresponding installation sealing device 4；
It is provided with in the back pressure hole 12(the present embodiment running through tube wall between First terrace 111 and the second step face 112 of connecting tube 1, the quantity of back pressure hole 12 is two, and corresponding two the described sealing devices 4 of difference), when scalable assembling pipe joint is in fastening under water, this back pressure hole 12 is for excretion, and is used for the sealing property test of scalable assembling pipe joint under water after tightening；
It is also preferred that the left the first end of described connecting tube 1 is additionally provided with the 4th internal diameter section 104 that diameter is minimum, the junction of the 4th internal diameter section 104 and the 3rd internal diameter section 103 is additionally provided with a undergauge section.
Preferably, described 3rd internal diameter section 103 is provided with some gathering sills 13, and this gathering sill 13 has a predetermined groove depth, and this gathering sill 13 preferably is from second step face 112 and starts the first end extension to connecting tube 1, preferably extend to this undergauge section, the present embodiment is symmetrical four.
First end of described telescoping tube 2 is provided with socket section 20, this socket section 20 arrives connecting tube 1 predetermined interior position (arbitrary place of the 3rd internal diameter section 103) through clamp device 3 and sealing device 4, this position allows it to have certain retractility (i.e. flexible in the length range of the 3rd internal diameter section 103), being suitable for the pipeline docking of different Cutting Length, the length of telescoping tube 2 can also design lengthening according to actual needs；
The external diameter of telescoping tube 2 is less than the internal diameter of the 3rd internal diameter section 103 of connecting tube 1, and the internal diameter of the 4th internal diameter section 104 more than connecting tube 1, and the internal diameter of telescoping tube 2 is the most roughly the same with the internal diameter of the 4th internal diameter section 104 of connecting tube 1；
The outside of the first end of telescoping tube 2 is provided with several dismountable projections 21, telescoping tube 2 can be fixed on by screw, and the height that the outside that protrudes from telescoping tube 2 is certain, it is preferably, the first end at telescoping tube 2 is provided with some openings inside contracted, the local of projection 21 is located in this opening inside contracted, and makes screw and the end face of non-bulging the first end in telescoping tube 2 of projection 21；The gathering sill 13 of the corresponding connecting tube 1 of this projection 21 is arranged, the width being preferably the two also adapts, projection 21 is made to be located in gathering sill 13, the guiding to projection 21 is constituted by gathering sill 13, telescoping tube 2 is thus avoided to rotate in connecting tube 1, to avoid relative rotation between the two that sealing effectiveness is had a negative impact, it is further ensured that good sealing effectiveness with this.
Second end of described telescoping tube 2 is provided with flange, for being connected with connected pipe one end (can be such as the welded flange of submarine pipeline after cutting).
In conjunction with Fig. 8 to Figure 14, described in hold device 3 tightly and there is one support 31, snap ring of seat 32, and drive 33, end cap 34 of ring, some nuts 35, some screw rods 36 and some push rods 37.
Support seat 31 entirety ringwise, there is the first end and the second end, its internal diameter adapts with the external diameter of telescoping tube 2, its first end has the first external diameter, second end has the second external diameter, first external diameter is more than the second external diameter, and between the first external diameter and the second external diameter, form a step surface, its first external diameter adapts with the internal diameter of the first internal diameter section of connecting tube 1, the first end supporting seat 31 is made to be placed in the First terrace 111 of connecting tube 1, the first end supporting seat 31 is provided with some through holes, and respectively this through hole is the end face being through to its first end by its step surface.
Snap ring 32 is sheathed on the outside of the socket section 20 of telescoping tube 2, its one end is placed in the second end supporting seat 31, and form axial the fixing of relative connecting tube 1, the outside of described snap ring 32 is provided with some outer lug 323, respectively this outer lug 323 has the outer inclined-plane 324 for compressing, this outer inclined-plane 324 is along the second end radial direction the most gradually evagination on the bearing of trend of the first end of telescoping tube 2 of telescoping tube 2, the medial surface of snap ring 32 is provided with zigzag latch 322, to improve the enclasping force of the socket section 20 to telescoping tube 2, whole snap ring 32 is cut into many lobes 321 vertically, do not cut off between lobe and lobe, but two ends are cross-linked, it is made still to keep overall ring-type.
Ring 33 is driven to be made up of two semi-rings, it is sheathed on the outside of snap ring 32, its external diameter adapts with the internal diameter of the first internal diameter section 101 of connecting tube 1, the inner side driving ring 33 has some internal projection 333, respectively this internal projection 333 has the interior inclined-plane 332 for compressing, this interior inclined-plane 332 is along the second end radial direction the most gradually convex on the bearing of trend of the first end of connecting tube 1 of connecting tube 1, and connecting tube 1 relatively is axially moveable.The outer inclined-plane 324 of the sheathed outer lug 323 pressing on described snap ring 32 in the interior inclined-plane 332 of the internal projection 333 of described driving ring 33, when described driving ring 33 is moved to its first end by the second end of connecting tube 1, the interior inclined-plane 332 of the internal projection 333 of described driving ring 33 compresses the outer inclined-plane 324 of the outer lug 323 of described snap ring 32 so that described snap ring 32 holds the socket section 20 of telescoping tube 2 tightly.
Wherein, the first end driving ring 33 has the first extension 331, this first extension 331 is sheathed on the outside of the second end supporting seat 31, it is provided with a preset distance H1 between end face and the step surface supporting seat 31 of this first extension 331, and its internal diameter adapts with the second external diameter supporting seat 31, the end face of this first extension 331 is provided with some connecting holes, and respectively this connecting hole correspondence supports the through hole setting of seat 31 first end.
The second end driving ring 33 extends to outside the end face of the second end of connecting tube 1, and make the end face of the second end of the end face distance connecting tube 1 of its second end form predetermined distance H2, and continue to extend one the second extension 332 of formation, the external diameter of this second extension 332 is less than the external diameter of driving ring 33, and forms a step surface between the two.
nullEnd cap 34 entirety is ringwise，The second end of connecting tube 1 it is arranged on by screw rod 36，Concrete structure is: the middle part of end cap 34 is provided with runs through the first end and the passage of the second end，Wear for telescoping tube 2，This passage is sequentially provided with the first internal diameter section by the first end to the second end、Second internal diameter section and the 3rd internal diameter section，First internal diameter section is sheathed on the outer circumferential side driving ring 33，Second internal diameter section is sheathed on the outer circumferential side of the second extension 332 driving ring 33，3rd internal diameter section is sheathed on the outer circumferential side of telescoping tube 2，And each section of decreasing dimensions and form two step surfaces，And，Second end of the end face distance connecting tube 1 of the first end has a preset distance H3，First step surface presses on the end face of the second end driving ring 33，The end face of the second extension 322 of second step surface distance driving ring 33 has a preset distance，Additionally，The outside of end cap 34 has runs through its first end and the through hole of the second end，Wear for screw rod 36，Its first end is near the second end of connecting tube 1，Its second end is provided with nut 35，Screw rod 36 one end screws togather with nut 35，Other end spiral shell is located in the screwed hole of the second end of connecting tube 1.
nullIn this kind of structure，Ring 33 outer end is driven to contact with end cap 34，During upper jack panel 35，Nut 35 acts directly on end cap 34，And be transferred to drive ring 33 by power，Driving ring 33 can be by end cap 34 with sliding together，Snap ring 32 is placed on (can also pass through retaining ring seat) and supports on seat 31，Axially support is provided for snap ring 32，Limit it to move axially，When promoting driving ring 33 to be axially moveable，Internal projection 333 on driving ring 33 gradually extrudes the outer inclined-plane 324 of the outer lug 323 of snap ring 32 by interior inclined-plane 332，Make snap ring 32 radial contraction，The inner surface of snap ring 32 compresses the outer surface of telescoping tube 2 (when snap ring 32 inside is provided with zigzag latch 322，During snap ring 32 radial contraction，Latch 322 can be made to penetrate the raising of telescoping tube 2 outer wall and to hold effect tightly)，Realize holding tightly telescoping tube 2，And owing to the relative connecting tube of snap ring 32 1 is fixed，Realize telescoping tube 2 to be connected with the fixing of connecting tube 1.After cancelling driving force (unclamping nut 35), the snap ring 32 being in confined state is returned to original state, it is achieved unclamp operation.
Multiple described push rods 37 are connected on driving ring 33, can be that one end is fixed in the connecting hole driving ring, and the other end is through the through hole supported on seat, and with driving the axially-movable of ring 33 and axially-movable.
Seeing Figure 15 to Figure 18, two sealing device 4(in one embodiment of the invention are as a example by annular), it includes two sealing rings 41 and the extrusion ring 42 being located between two sealing rings 41 respectively.These two sealing device 4 sequential concatenation, it is arranged at the second internal diameter section 102 of connecting tube 1, one of them sealing device 4 is arranged at the second step face 112 of connecting tube 1 by a seat ring 43, constitute the axial limiting to this sealing device 4, another sealing device 4 sequential concatenation therewith also constitutes the transmission of power between the two, and the other end of this another sealing device 4 accepts the power of push rod 37 transmission by a baffle ring 44.And, the external diameter of this seat ring 43 adapts with the internal diameter of the second internal diameter section 102 of connecting tube 1, that its internal diameter is added with the groove depth of gathering sill 13 less than the internal diameter of the 3rd internal diameter section 103 of connecting tube 1 and, to form the covering of the notch at second step face 112 of the gathering sill 13 to connecting tube 1, so that after the projection 21 of telescoping tube 2 slips into gathering sill 13, the stop to projection 21 is formed by this seat ring 43, preventing telescoping tube 2 from being deviate from by connecting tube 1, the preferably internal diameter of seat ring 43 adapts with the internal diameter of the 3rd internal diameter section 103 of connecting tube 1.
Described sealing ring 41 can be metal sealing steel ring, the circular ring in its generally K font cross section, it has base portion 410, first pull ring (corresponding first extension 411) and the second pull ring (corresponding second extension 412), three is preferably wholely set, described base portion 410 has a load-carrying surface and a joint face, one end of described first extension 411 and the second extension 412 is connected to the joint face (forming the 3rd pre-set space S3 of a groove-like between the two) of base portion 410, the set-up mode of three makes the cross section entirety of sealing ring 41 in K shape.
Described first extension 411 there is a primary sealing area 4111 and one first compress face 4112, described second extension 412 there is a secondary sealing area 4121 and one second compress face 4122, the first of described first extension 411 compresses the second of face 4112 and the second extension 412 and compresses and have an angle α between face 4122, having in a preset distance H4(the present embodiment between primary sealing area 4111 and the secondary sealing area 4121 of the second extension 412 of described first extension 411, primary sealing area 4111 is parallel with secondary sealing area 4121).
Described first extension 411 has seal section and linkage section, whole seal sections being located at described first extension 411 of described primary sealing area 4111, the lateral surface (and primary sealing area 4111 is positioned at the same side) of the linkage section of described first extension 411 and first compresses has an angle γ between face 4112, make to have between joint face and the lateral surface of linkage section of base portion 410 first pre-set space S1, to provide the space of described first extension 411 deformation.
Described second extension 412 has seal section and linkage section, whole seal sections being located at described second extension 412 of described secondary sealing area 4121, the lateral surface (and secondary sealing area 4121 is positioned at the same side) of the linkage section of described second extension 412 and second compresses has an angle γ between face 4122, make to have between joint face and the lateral surface of linkage section of base portion 410 second pre-set space S2, to provide the space of described second extension 412 deformation.
Sealing ring 41 is positioned at described base portion 410 and offers some symmetrical open slots 413, its effect is to strengthen the first pull ring of sealing ring 41 and the second pull ring respectively to external diameter and the spreading range of internal diameter change of sealing ring 41, increase by the first pull ring and elastic performance that the second pull ring is connected with base portion 410, and finally strengthen the sealing property of sealing ring 41.
nullDescribed extrusion ring 42 is positioned at the middle part that two sealing rings 41 connect，Described extrusion ring 42 is cylinder (or annulus) the shape structure of wedge shape section，Its first end have one the 3rd compress face 4203 and one the 4th compress face 4204，Second end have one the 5th compress face 4205 and one the 6th compress face 4206，Its 3rd compress face 4203 press on one of them sealing ring 41 the first extension 411 first compress face 4112，Its 4th compress face 4204 press on this sealing ring 41 the second extension 412 second compress face 4122，3rd compresses face 4203 and the 4th compresses and has an angle β between face 4204，It the 5th compresses face 4205 and the 6th and compresses the structure in face 4206 and arrange and compress face 4203 and the 4th with the 3rd to compress face 4204 essentially identical，
Wherein, compress face 4204,4206 and press on first when the 3rd (the 5th) of described extrusion ring 42 compresses face the 4203,4205 and the 4th (the 6th) respectively and compress face 4112 and second and compress face 4122 and when the joint face of base portion 410 is close, the angle of described angle α gradually expands, and makes the preset distance H4 between primary sealing area 4111 and secondary sealing area 4121 become big or big in change trend.
Some symmetrical through holes 4201 it are provided with in the middle part of the tubular structure sidewall of described extrusion ring 42, the effect of described through hole 4201 is connection extrusion ring 42 outer wall and the annular space of inwall, in order to the sealing space that two sealing surfaces seal formation respectively connects into one (sealing property can be tested by this sealing space by the back pressure hole 12 being located at connecting tube 1).
The sealing ring 41 of described sealing device 4, the external seal face that face is sealing ring 41 (corresponding primary sealing area 4111) that sealing ring 41 first pull ring contacts with connecting tube 1 inner-walls of duct of described adjusting means in seal process, the inner sealing surface that face is sealing ring 41 (corresponding secondary sealing area 4121) that sealing ring 41 second pull ring contacts with telescoping tube 2 pipeline outer wall of described adjusting means；The extrusion ring 42 of described sealing device 4, during sealing function, its two ends respectively with the contact surface of the contact position of sealing ring 41 for compressing face (corresponding three, the four, the five, the 6th compress face), specifically include two outer shrouds and compress face (corresponding three, the 5th compress face 4203,4205) and two internal ring compress face (correspondence the four, the 6th compresses face 4204,4206).
Said structure arranges and makes the sealing device 4 in the present invention compress two extruding compressing face in the face of sealing ring 41 by two of extrusion ring 42, two sealing surfaces making sealing ring 41 expand outwardly, and jam-packed is by sealing surface, realize sealing, better seal effect can be obtained, especially it is adapted to multiple situation, if desired for when realizing passive gearing sealing, this kind of sealing means is the most applicable, under acting at push rod 37, baffle ring 44 promotes the sealing ring 41 of one end, and the sealing ring 41 of other end axial restraint under being located at the restriction of seat ring 43 in second step face 112, whole sealing device 4 is made axially to be compressed, during, extrusion ring 42 struts the sealing ring 41 of K-type and realizes sealing.
The scalable assembling pipe joint 3 of the present invention needs to be intended to the damage location excision of the damaged pipe of reparation before installing, form two ends, and at two the end welding points cut off, and measure the distance (having allowed error) between two joints.The length of the telescoping tube 2 of this equipment (scalable assembling pipe joint) is determined according to measurement result.
During installation, first equipment two ends are connected with connected two ends respectively, then go up jack panel 35, thus drive end cap 34 and drive ring 33 to slide inward, snap ring 32 shrinks realization and holds tightly, drives ring 33 to drive push rod 37, push rod 37 drives baffle ring 44, and extrusion ring 42 crush seal ring 41 realizes sealing.
nullUnderstand in sum，The scalable assembling pipe joint of the present invention，By by connecting tube 1、Telescoping tube 2、Support seat 31、Snap ring 32、Drive ring 33、End cap 34、Nut 35 and the screw rod 36 of driving force are provided、Push rod 37、Sealing ring 41、Extrusion ring 42、Seat ring 43、Baffle ring 44 grade constitutes an organic whole，Make the present invention can pass to the axial driving force that screw rod 36 provides drive ring 33 by end cap 34，And utilize compressing of the lozenges that the axially promotion realization driving ring 33 drives ring 33 to snap ring 32，Axial motive force is converted to radial push power，And then realize the radial contraction of snap ring 32，And the radial direction locking between connecting tube 1 and the telescoping tube 2 of socket is realized with this，Simultaneously when snap ring 32 is radially locked to predetermined extent，By axial arranged push rod 37, the axial driving force that screw rod 36 provides is passed to baffle ring 44 again，And pass to sealing ring 41 and extrusion ring 42 by baffle ring 44，Extrusion ring 42 is squeezed in the groove of sealing ring 41，And by compressing the inclined-plane abutting in face, axial motive force is converted into radial push power，So that the two of sealing ring 41 sealing surfaces open，And radially press on connecting tube 1 and the telescoping tube 2 of socket respectively，Realize the sealing between connecting tube 1 and telescoping tube 2，Thus realize fastening and the gearing cooperation sealed，Allow the invention under the effect of motive force, realize locking simultaneously single and seal，I.e. have only to apply corresponding active force continuously，Just can sequentially or simultaneously reach locking and the technique effect sealed，Make locking and the operation sealed easier，For needing to be carried out situation about operating by mechanical hand，Significantly improve operating efficiency.
Claims (14)
1. a scalable assembling pipe joint, it is characterised in that including:
One connecting tube, has the first connection end and the first socket end, and its first socket end is provided with socket passage；And
One telescoping tube, has the second connection end and the second socket end, and its second socket end is provided with socket section, the socket of described telescoping tube
In the adjustable socket passage being arranged in this connecting tube of section, and make this connecting tube the first connection end and this telescoping tube the
Two distances connected between end are adjustable；
One sealing device, it has two sealing rings and an extrusion ring,
This sealing ring has base portion, the first extension and the second extension, and described base portion has a joint face, described first extension
With the joint face that one end of the second extension is connected to base portion, described first extension has a primary sealing area and one
First compresses face, described second extension there is a secondary sealing area and one second compress face, the of described first extension
One compresses the second of face and the second extension compresses and has an angle α between face, the primary sealing area of described first extension with
There is between the secondary sealing area of the second extension a preset distance,
Described extrusion ring have one the 3rd compress face and one the 4th compress face, it the 3rd compresses face and presses on described first extension
First compresses face, and it the 4th compresses face and press on the second of described second extension and compress face, and the 3rd compresses face and the 4th compresses face
Between there is an angle β,
Wherein, described sealing device is located between the socket section of described telescoping tube and the socket passage of connecting tube, when the of described extrusion ring
Three compress face and the 4th compresses face and presses on first respectively and compress face and second and compress face and when the joint face of base portion is close, described
The angle of angle α gradually expands, and makes the preset distance H between primary sealing area and secondary sealing area become big or big in becoming
Trend so that primary sealing area is sealed in the internal face of the socket passage of connecting tube, and secondary sealing area is sealed in the socket of telescoping tube
The outside wall surface of section, it is achieved described telescoping tube and the connecting tube sealing in precalculated position.
2. scalable assembling pipe joint as claimed in claim 1, it is characterised in that:
Also include that clamp device, described clamp device include:
Snap ring, is sheathed on the outside of the socket section of described telescoping tube, and the most described connecting tube axial restraint, and the outside of described snap ring sets
Having outer lug, this outer lug has the outer inclined-plane for compressing, and this outer inclined-plane is socketed end to the first bearing of trend connecting end along first
Upper radial direction gradually evagination, and
Driving ring, be sheathed on the outside of described snap ring, the inner side of described driving ring has internal projection, and this internal projection has interior for compress
Inclined-plane, this interior inclined-plane is socketed end radial direction the most gradually convex on the second bearing of trend connecting end along second,
Wherein, the outer inclined-plane of the sheathed outer lug pressing on described snap ring in interior inclined-plane of the internal projection of described driving ring, when described driving ring
By the first socket end when the first connection end moves, the interior inclined-plane of the internal projection of described driving ring compresses the outer lug of described snap ring
Outer inclined-plane so that described snap ring holds the socket section of described telescoping tube tightly.
3. scalable assembling pipe joint as claimed in claim 1, it is characterised in that:
Also include that clamp device, described clamp device include:
Snap ring, is sheathed on the outside of the socket section of described telescoping tube, and the most described connecting tube axial restraint, and the outside of described snap ring sets
Having outer lug, this outer lug has the outer inclined-plane for compressing, and this outer inclined-plane is socketed end to the first bearing of trend connecting end along first
Upper radial direction gradually evagination, and
Driving ring, be sheathed on the outside of described snap ring, the inner side of described driving ring has internal projection, and this internal projection has interior for compress
Inclined-plane, this interior inclined-plane is socketed end radial direction the most gradually convex on the second bearing of trend connecting end along second,
Wherein, the outer inclined-plane of the sheathed outer lug pressing on described snap ring in interior inclined-plane of the internal projection of described driving ring, when described driving ring
By the first socket end when the first connection end moves, the interior inclined-plane of the internal projection of described driving ring compresses the outer lug of described snap ring
Outer inclined-plane so that described snap ring holds the socket section of described telescoping tube tightly；
Described clamp device and sealing device are located between the socket section of described telescoping tube and the socket passage of connecting tube, described sealing device
One end form the axial restraint of relative connecting tube, the snap ring of described clamp device or drive ring to force in described close in precalculated position
The other end of seal apparatus, and make the primary sealing area of described sealing device be sealed in the internal face being socketed passage of connecting tube, the
Two sealing surfaces are sealed in the outside wall surface of the socket section of telescoping tube, it is achieved the radial direction locking in precalculated position of described telescoping tube and connecting tube
And sealing.
4. scalable assembling pipe joint as claimed in claim 2 or claim 3, it is characterised in that:
Described snap ring is multi-petal shape, is cross-linked between adjacent petals.
5. scalable assembling pipe joint as claimed in claim 2 or claim 3, it is characterised in that:
Described clamp device also includes means of threaded drives, and by this means of threaded drives drive described driving ring by the first socket end to
First connects end moves, and described means of threaded drives includes:
End cap, is sheathed on outside the socket section of described telescoping tube, has the first end face supplying to compress the upper surface of described driving ring；And
Screw rod, one end connects described end cap, and the other end connects described connecting tube, and enters to realize to driving ring to compress by the spiral shell of screw rod
Drive.
6. scalable assembling pipe joint as claimed in claim 2 or claim 3, it is characterised in that:
Described driving ring is made up of two or more semi-ring.
7. scalable assembling pipe joint as claimed in claim 2 or claim 3, it is characterised in that:
The internal face of the socket passage of described connecting tube is provided with a First terrace, and described snap ring is real by the support of this First terrace
The axial restraint of the most described connecting tube.
8. scalable assembling pipe joint as claimed in claim 2 or claim 3, it is characterised in that:
Described clamp device also includes supporting seat, and wherein, described support cover for seat is located at the outside of the socket section of described telescoping tube, its upper end
Face is supported in the lower surface of described snap ring, and its lower surface is provided with the cambered outwards flange in footpath so that the cross section of described support seat is L
Shape, the lower surface of this flange is supported in the First terrace of the socket passage of described connecting tube, and described driving ring is not by this support seat
Support support.
9. the scalable assembling pipe joint as described in claim 1 or 3, it is characterised in that:
The entirety of the base portion of described sealing ring, the first extension and the second extension be cross section be the layout of K-type.
10. the scalable assembling pipe joint as described in claim 1 or 3, it is characterised in that:
Described sealing ring is provided with some open slots,
And/or
Described extrusion ring is provided with the through hole of two sealing surfaces for communication seals ring.
11. scalable assembling pipe joints as claimed in claim 3, it is characterised in that:
The socket passage of described connecting tube is provided with second step face, and one end of described sealing device is supported in described second step face, another
Terminate supporting of the lower surface by described driving ring.
12. scalable assembling pipe joints as claimed in claim 11, it is characterised in that:
Also including some push rods, one end of described push rod connects the lower surface of described driving ring, and the other end forces in sealing ring or extruding
Ring.
13. scalable assembling pipe joints as claimed in claim 11, it is characterised in that:
The outside of the second connection end of described telescoping tube is provided with the stop part of an evagination, the socket passage of its external diameter and described connecting tube
The internal diameter of the less internal diameter section in second step face adapts.
14. scalable assembling pipe joints as claimed in claim 13, it is characterised in that:
The internal face of the less internal diameter section in the second step face of the socket passage of described connecting tube is provided with guide, and this guide is to stopping
Block piece is arranged, and constitutes the guiding to stop part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510090543.1A CN104763855B (en) | 2015-02-28 | 2015-02-28 | Adjustable pipe connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510090543.1A CN104763855B (en) | 2015-02-28 | 2015-02-28 | Adjustable pipe connection device |
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| Publication Number | Publication Date |
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| CN104763855A CN104763855A (en) | 2015-07-08 |
| CN104763855B true CN104763855B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510090543.1A Expired - Fee Related CN104763855B (en) | 2015-02-28 | 2015-02-28 | Adjustable pipe connection device |
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| CN (1) | CN104763855B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105498A (en) * | 2018-02-01 | 2018-06-01 | 辽宁三三工业有限公司 | A kind of novel pipeline extension apparatus |
| CN109695977B (en) * | 2018-04-24 | 2020-08-28 | 海尔智家股份有限公司 | Ice making device and refrigerator with same |
| CN109152303A (en) * | 2018-10-11 | 2019-01-04 | 无锡市海鹰加科海洋技术有限责任公司 | A kind of radiator structure of underwater electronic compartment |
| CN110541967A (en) * | 2019-01-30 | 2019-12-06 | 深圳海油工程水下技术有限公司 | deepwater sea pipe maintenance fixture |
| CN109974128B (en) * | 2019-04-12 | 2024-05-24 | 广东美的制冷设备有限公司 | Sealing assembly of window type air conditioner and window type air conditioner with sealing assembly |
| CN109938678A (en) * | 2019-04-17 | 2019-06-28 | 深圳开立生物医疗科技股份有限公司 | A kind of bindiny mechanism and a kind of video interface camera lens |
| CN110131493B (en) * | 2019-04-30 | 2020-11-03 | 哈尔滨工程大学 | Circumferential force-increasing clamping and pressing type submarine pipeline connector |
| CN110202485A (en) * | 2019-05-13 | 2019-09-06 | 上海二十冶建设有限公司 | A kind of application method lengthening male flange in the installation of shot-blasting machine dedusting air hose |
| CN110541985A (en) * | 2019-08-23 | 2019-12-06 | 深圳海油工程水下技术有限公司 | Connector for sea pipe |
| CN110778822A (en) * | 2019-11-19 | 2020-02-11 | 深圳海油工程水下技术有限公司 | Sealing assembly for connecting sea pipes |
| CN112993917B (en) * | 2021-02-03 | 2024-03-22 | 宁波敦泓密封技术有限公司 | Rubber seal assembly |
| CN113236888B (en) * | 2021-05-25 | 2022-05-24 | 中国石油大学(北京) | Flexible connecting device |
| CN114962826B (en) * | 2022-06-16 | 2024-03-08 | 中海石油(中国)有限公司 | Underwater hydraulic loading telescopic connector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5975587A (en) * | 1996-04-01 | 1999-11-02 | Continental Industries, Inc. | Plastic pipe repair fitting and connection apparatus |
| CN2409404Y (en) * | 2000-03-17 | 2000-12-06 | 冶金工业部北京钢铁设计研究总院 | Adjustable axial pipe joint |
| CN1212484C (en) * | 2003-04-17 | 2005-07-27 | 申泽刚 | Pipeline adjustable connector with telescopic device |
| CN2618026Y (en) * | 2003-05-07 | 2004-05-26 | 申泽刚 | Sleeved pipe telescoping devices |
| CN101839384B (en) * | 2010-05-07 | 2011-12-28 | 周庆涛 | Pipeline connector |
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2015
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| CN104763855A (en) | 2015-07-08 |
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Granted publication date: 20170111 Termination date: 20210228 |