CN108194723A - It is axially forced to formula tube joint assembly - Google Patents
It is axially forced to formula tube joint assembly Download PDFInfo
- Publication number
- CN108194723A CN108194723A CN201810145831.6A CN201810145831A CN108194723A CN 108194723 A CN108194723 A CN 108194723A CN 201810145831 A CN201810145831 A CN 201810145831A CN 108194723 A CN108194723 A CN 108194723A
- Authority
- CN
- China
- Prior art keywords
- pipe collar
- pipe
- sealing ring
- joint assembly
- tube joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
Abstract
The invention discloses one kind to be axially forced to formula tube joint assembly, and the formula tube joint assembly that is axially forced to includes：Pipe collar, the pipe collar are coated at outside the pipeline, and have predetermined gap between the pipe collar and the pipeline；Casing, described sleeve pipe is suitable for being set in the outside of the pipe collar, and the internal face of described sleeve pipe is configured to shape of at least part with taper, the pipe collar and described sleeve pipe are interference fitted to eliminate the gap between the pipe collar and the pipeline when described sleeve pipe and pipe collar assembling are integrated, and realize the sealed connection to the pipeline.It is according to the present invention to be axially forced to formula tube joint assembly, the sealed connection of pipeline can be realized by the cooperation of casing and pipe collar, the function of offshore platform rapid-maintenance is solved by the connection mode being axially forced to, it is easily operated.
Description
Technical field
The present invention relates to technical field of pipeline connection, and formula tube joint assembly is axially forced to more particularly to one kind.
Background technology
In the relevant technologies, there are certain deficiencies for pipe fitting：One, it is impossible to be used in the connection of pressure piping；Second, structure
More complicated, more demanding for the elastic component being arranged in sealing ring body, this connection mode contact can be with usage time
Increase and reduce, while cause the relaxation of elastic component stress, when contact mean value be less than critical contact pressure when, sealing lose
Effect；Third, the etching problem after pipe fitting long-time use can not be solved；Fourth, it can not realize that ocean platform pipeline maintenance is fast
Speed, environmental protection, economic requirement.
Invention content
The present invention is directed at least solve one of technical problem in the prior art.For this purpose, the present invention proposes a kind of axis
To forced tube joint assembly, the structure for being axially forced to formula tube joint assembly is simple and easy to maintenance.
According to embodiments of the present invention is axially forced to formula tube joint assembly, and the formula tube joint assembly that is axially forced to is suitable for set
The outside of pipeline is located at, including：Pipe collar, the pipe collar are coated at outside the pipeline, and are had between the pipe collar and the pipeline
There is predetermined gap；Casing, described sleeve pipe are suitable for being set in the outside of the pipe collar, and the internal face of described sleeve pipe be configured to
A few part has the shape of taper, and the pipe collar is matched with described sleeve pipe interference when described sleeve pipe is integrated with pipe collar assembling
It closes to eliminate the gap between the pipe collar and the pipeline.
According to embodiments of the present invention is axially forced to formula tube joint assembly, and pipe can be realized by the cooperation of casing and pipe collar
The sealed connection in road solves the function of offshore platform rapid-maintenance by the connection mode being axially forced to, easily operated.
In addition, the formula tube joint assembly according to the above embodiment of the present invention that is axially forced to also has following additional technology spy
Sign：
According to some embodiments of the present invention, the outer surface of the pipe collar is equipped with what is be adapted with the internal face of described sleeve pipe
Arc convex, with the interference volume that the pipe collar is controlled to be assembled with described sleeve pipe.
Further, the internal face of the pipe collar is provided with the first sealing ring protruded on the inside of the pipe collar, the pipe
Hoop is connect by first sealing ring with the seal for pipe joints.
Further, the radius of the arc surface of the arc convex is 4mm-5mm, in the axial direction along the pipe collar
On, first sealing ring is spaced apart 1mm-2mm with the arc surface.
Specifically, the internal face of the pipe collar is additionally provided with the second sealing ring, second sealing ring and first sealing
Ring is axially spaced along the pipe collar, and second sealing ring is adjacent to the end set of the pipe collar.
Further, the section of first sealing ring and second sealing ring is configured to trapezoidal shape, described
The upper bottom length of first sealing ring and second sealing ring is 0.8mm-1.3mm, first sealing ring and described second
The bottom length of sealing ring is 2mm-3mm；On the axial direction along the pipe collar, first sealing ring and described second
The distance that sealing ring is spaced apart is 10mm-14mm.
Specifically, the internal face of the pipe collar is additionally provided with connected to position towards the locating ring of protrusion on the inside of the pipe collar
Pipeline, the locating ring is located at the middle part of the pipe collar and neighbouring first sealing ring is set.
According to some embodiments of the present invention, the pipe collar and described sleeve pipe are metalwork, the outer surface of the pipe collar
The fitting projection protruded on the outside of pipe collar is provided with, the internal face of described sleeve pipe is equipped with the cooperation to match with the fitting projection
Slot, the fitting projection cooperation is in the mating groove so that the pipe collar is connected with described sleeve pipe.
According to some embodiments of the present invention, the internal face of described sleeve pipe has taper angles A and B, and meets：Taper angles A is
78 ° -85 °, taper B is 65 ° -75 °, and the interference volume of the pipe collar and described sleeve pipe interference fit is 0.9mm-1.1mm.
According to some embodiments of the present invention, described sleeve pipe includes two, and two described sleeve pipes are arranged symmetrically in the pipe
The both ends of hoop, when described sleeve pipe is assembled with the pipe collar, two described sleeve pipes move toward one another to be axially forced to formula pipe described in guarantee
The concentricity of adapter assembly and the pipeline.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
It obtains significantly or is recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Significantly and it is readily appreciated that, wherein：
Fig. 1 is the sectional view for being axially forced to formula tube joint assembly according to embodiments of the present invention；
Fig. 2 is the sectional view for being axially forced to pipe collar in formula tube joint assembly according to embodiments of the present invention；
Fig. 3 is the sectional view for being axially forced to formula tube joint assembly middle sleeve according to embodiments of the present invention.
Reference numeral：
Formula tube joint assembly 100 is axially forced to,
Pipe collar 1, arc convex 11, the first sealing ring 12, the second sealing ring 13, locating ring 14, fitting projection 15,
Casing 2, mating groove 21.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " " center ", "left", "right", " interior ", " outer ", " axial direction ",
The orientation or position relationship of the instructions such as " radial direction ", " circumferential direction " are based on orientation shown in the drawings or position relationship, merely to just
In the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, define " first ", " second "
One or more this feature can be expressed or be implicitly included to feature.In the description of the present invention, unless otherwise indicated,
" multiple " are meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the relevant technologies, in-service oil platform pipeline for many years is influenced easily to occur by corrosive medium and environment for a long time
Leakage, traditional welding technique needs fire operation, inflammable and explosive by oil gas in terms of the oil platform pipeline maintenance gone into operation
The restriction of various factors is waited, is not suitable with the requirement of ocean platform pipeline maintenance, environmental protection, economic dispatch.
The present invention relates to a kind of novel non-solder pipeline connection technologies of offshore platform, that is, are axially forced to formula pipe and connect
Head assembly 100, the quick dimension after being advantageously implemented offshore platform pipe leakage by being axially forced to formula tube joint assembly 100
It repaiies.
What description was according to embodiments of the present invention below in conjunction with the accompanying drawings is axially forced to formula tube joint assembly 100.
As shown in Figure 1-Figure 3, it is according to embodiments of the present invention to be axially forced to formula tube joint assembly 100, it is axially forced to formula pipe
Adapter assembly 100 is suitable for being set in the outside of pipeline, including：Pipe collar 1 and casing 2.
Specifically, connected pipe can be located at the inside of pipe collar 1, i.e. pipe collar 1 is coated at outside pipeline；And pipe collar 1
There is predetermined gap between pipeline, the predetermined gap can specifically be set according to actual needs.
Casing 2 is suitable for being set in the outside of pipe collar 1, and the internal face of casing 2 is configured at least part with cone
The shape of degree, when casing 2 is integrated with the assembling of pipe collar 1, casing 2 is interference fitted with pipe collar 1, and passes through pipe collar 1 and casing 2
Interference fit can eliminate the gap between pipe collar 1 and pipeline, so as to fulfill the sealed connection to pipeline.Pass through casing 2 as a result,
With the interference fit of pipe collar 1, the sealed connection to pipeline is advantageously implemented, it is easy to operate.
Wherein, axial load can be applied by special loading device to casing 2 by being axially forced to formula tube joint assembly 100,
Its (casing 2) is made to be contacted with certain crimping speed with pipe collar 1 under certain interference volume size makes tube joint assembly generate modeling
Property deformation, and gradually eliminate the gap between pipe collar 1 and connected pipe, generate interference fit, realize the sealed connection of pipeline.
According to embodiments of the present invention is axially forced to formula tube joint assembly 100, passes through the interference fit of casing 2 and pipe collar 1
It can realize the sealed connection of pipeline, the function of offshore platform rapid-maintenance is solved by the connection mode being axially forced to,
It is easily operated.
Referring to Figures 1 and 2, according to some embodiments of the present invention, the outer surface of pipe collar 1 is equipped with the internal face with casing 2
The arc convex 11 of adaptation, with the interference volume that pipe collar 1 is controlled to be assembled with casing 2.For example, the outer surface of pipe collar 1 can be equipped with arc
Shape protrusion 11, arc convex 11 are adapted with the internal face of casing 2, and arc convex 11 can include multiple, multiple arcs protrusion
11 arrange along the axially spaced-apart of pipe collar 1.In this way, by coordinating arc convex 11 and the different location of the internal face of casing 2, have
Conducive to the interference volume that control pipe collar 1 is assembled with casing 2, the sealing to pipeline is better achieved.
Certainly, in some embodiments, the outer surface of pipe collar 1 can also be equipped with wedge-shaped protrusion etc..
Further, referring to Figures 1 and 2, the internal face of pipe collar 1 be equipped with the first sealing ring 12 (i.e. main seal ring), first
Sealing ring 12 (i.e. main seal ring) can be protruded towards 1 inside of pipe collar, and pipe collar 1 is realized and the pipeline by the first sealing ring 12
Between sealed connection.
In some embodiments, the first sealing ring 12 and arc convex 11 can be in at least portions in the radial direction of pipe collar 1
Split-phase pair.For example, in pipe collar 1 in the radial direction, the first sealing ring 12 can be at least partly opposite with arc convex 11.By
This, the sealing performance of pipeline can be better ensured that by the cooperation of the first sealing ring 12 and casing 2.
Certainly, in some embodiments, the first sealing ring 12 can also be in pipe collar 1 in the radial direction with arc convex 11
It is staggered.
Specifically, with reference to Fig. 1, the radius of the arc surface of arc convex 11 is 4mm-5mm, in the axial direction along pipe collar 1
On, the first sealing ring 12 is spaced apart 1mm-2mm with the arc surface.
Here it is possible to understand, the spacing that theoretically the first sealing ring 12 is spaced apart with the arc surface can be 0,
But if being 0, the attachment force of casing 2 is larger (to the axial connection load of casing 2 when connecting), is unfavorable for installing.
In the present invention, by the way that the first sealing ring 12 is made to be spaced apart 1mm-2mm with the arc surface so that casing 2 with
When pipe collar 1 assembles, a line of sealing ring (such as first sealing ring 12) is first contacted with connected pipe, in this way, being easily formed
Stress concentration is conducive to form groove on pipeline, increases the coefficient of contact friction of pipe fitting, helps to enhance the close of pipe fitting
Sealing property.
For example, when the section of the first sealing ring 12 is isosceles trapezoid, the spacing of the first sealing ring 12 and the arc surface
For isosceles trapezoid the plane of symmetry to the center of circle (or peak of the arc surface) of the arc surface distance.
Further, with reference to Fig. 2, the internal face of pipe collar 1 is also provided with the second sealing ring 13,13 He of the second sealing ring
First sealing ring 12 is spaced apart along the axial direction (for example, left and right directions shown in Fig. 2) of pipe collar 1, and the second sealing ring 13 can be adjacent
The end set of nearly pipe collar 1.The sealing performance of pipeline can be not only improved by the second sealing ring 13 as a result, but also can also be prevented
Only medium improves the sealing performance of tube joint assembly 100, extends and use to the etching problem of the first sealing ring 12 (main seal ring)
Service life.
Here, it should be noted that the present invention is to the second sealing ring 13 and the first sealing ring 12 towards 1 inner bulge of pipe collar
Height be not especially limited, can be identical or different, specifically can according to actual needs adaptability set.
According to embodiments of the present invention is axially forced to formula tube joint assembly 100, by using special double seal ring structure,
For existing Management of Pipeline Mechanical Equipment is interference fitted connection and technology, there is connection working efficiency height, link cost is low, anti-corrosive properties
The advantages that energy is good, good seal performance, has broad application prospects in pipeline industry.
Further, with reference to Fig. 2, the section of the first sealing ring 12 and the second sealing ring 13 be configured to it is trapezoidal (preferably
Isosceles trapezoid) shape, the upper bottom length of the first sealing ring 12 and the second sealing ring 13 is 0.8mm-1.3mm, the first sealing
The bottom length of 12 and second sealing ring 13 of ring is 2mm-3mm.Here upper bottom and bottom refers to trapezoidal upper bottom under
Bottom.
Optionally, as depicted in figs. 1 and 2, the first sealing ring 12 and the second sealing ring 13 are along the axially spaced of pipe collar 1
Distance can be 10mm-14mm.As a result, by using special double trapezoid seal ring structure, pressure piping can be greatly improved
The sealing performance of pressure-bearing.
Here, it should be noted that above-mentioned spacing 10mm-14mm is the sealing performance for not influencing the first sealing ring 12
Minimum spacing；And spacing is too big, the second sealing ring 13 does not have the effect of auxiliary seal.The specific of spacing sets to ensure first
The sealing performance of sealing ring 12 and the auxiliary seal effect of the second sealing ring 13 are advisable.
Wherein, the section of above-mentioned first sealing ring, 12 and second sealing ring 13 refers to longitudinal cross-section, for example, the longitudinal direction
Section is the section by the first sealing ring 12 or the axis direction of the second sealing ring 13.By by the first sealing ring 12 and second
The cross-sectional configuration of sealing ring 13 is conducive to improve the sealing performance to pipeline into trapezoidal.
Specifically, when casing 2 does not assemble with pipe collar 1, pipe collar 1 is set in outside the pipeline, and pipe collar 1 and pipeline it
Between there is certain gap, when casing 2 and pipe collar 1 are interference fitted, by the deformation of pipe collar 1 and casing 2, make pipe collar 1 and institute
The gap stated between pipeline is eliminated, and realizes sealing.
Further, when not assembled due to casing 2 with pipe collar 1, there is certain gap between pipe collar 1 and pipeline；Work as set
When pipe 2 is interference fitted with pipe collar 1, there is deflection therebetween, be originally used for first sealing ring of trapezoidal (such as isosceles trapezoid etc.)
12 and/or second sealing ring 13 can also deform, contact between pipe collar 1 and the pipeline is made to become face from line contact and is connect
It touches, is conducive to improve sealing effect.
The present invention can realize optimal seal effect and applied to high-voltage tube by special double trapezoid seal ring structure
Road；Secondly, the second sealing ring 13 mainly prevents corrosion of the outer medium to the first sealing ring 12, and antiseptic property is good, mechanization degree
Height, labor intensity is low, and environmental suitability is strong, can realize offshore platform process pipe rapid-maintenance.
Specifically, as depicted in figs. 1 and 2, the internal face of pipe collar 1 is additionally provided with locating ring 14, and locating ring 14 can be towards pipe
1 inside of hoop is protruded, and locating ring 14 can be configured to arc-shaped, and connected pipe, locating ring can be positioned by locating ring 14
14 may be provided in the middle part of pipe collar 1 and be set adjacent to the first sealing ring 12.In this way, by locating ring 14 can to connected pipe into
Row limiting, the connection procedure of easily controllable pipeline.
With reference to Fig. 1 and Fig. 2, according to some embodiments of the present invention, pipe collar 1 and casing 2 are metalwork, pipe collar 1 it is outer
Surface is equipped with fitting projection 15, and fitting projection 15 can be protruded towards 1 outside of pipe collar, and the internal face of casing 2 is equipped with mating groove 21,
Mating groove 21 matches (such as interference fit etc.) with fitting projection 15, as a result, by the way that fitting projection 15 is made to coordinate in mating groove
In 21, it is easy to implement being reliably connected between pipe collar 1 and casing 2.
With reference to Fig. 1 and Fig. 3, according to some embodiments of the present invention, the internal face of casing 2 has taper angles A and B, and meet：
Taper angles A is 78 ° -85 °, and taper B is 65 ° -75 °, and pipe collar 1 is 0.9mm-1.1mm with the interference volume that casing 2 is interference fitted.As a result,
The sealed connection of pipeline is advantageously implemented by the cooperation of casing 2 and pipe collar 1, and easily operated.
As shown in Figure 1, according to some embodiments of the present invention, casing 2 includes two, and two casings 2 are arranged symmetrically in pipe
The both ends left end and right end of pipe collar 1 (for example, in Fig. 1) of hoop 1, when casing 2 is assembled with pipe collar 1, two casings 2 move toward one another with
Guarantee is axially forced to the concentricity of formula tube joint assembly 100 and pipeline.
Specifically, 2 inner wall of casing carries certain internal taper, convenient for connection.When casing 2 by axial force squeeze and to centre
When moving toward one another, with the press-in of casing 2, the gap successive elimination between pipe collar 1 and pipeline, sealing ring is (including the first sealing
12 and second sealing ring 13 of ring) occlusion pipe surface, it is final to generate interference fit, make pipe collar 1 and pipeline that elastoplasticity occur jointly
Deformation radially generates sufficiently large compression, while is axially also obtaining certain tensile capacity, reaches the effect of sealed connection
Fruit.This pipe connecting method is to realize sealed connection by being interference fitted between metal, based entirely on the power of metal material
Performance is learned, is not likely to produce defect.
In some embodiments of the invention, the tube joint assembly 100 for 2 inches, duct thickness 8mm, outside pipeline
Diameter is 60.3mm.The internal diameter of pipe collar 1 is 60.8mm.The upper bottom length of sealing ring is 1mm, and bottom length is 2.4mm, and first seals
The spacing of 12 and second sealing ring 13 of ring is 12.8mm, and the radius of arc surface is the diameter of 4.5mm, the first sealing ring 12 and arc surface
It is 1.7mm to distance.Two casings 2 are acted on by axial force F and are moved toward one another, with the press-in of casing 2, pipe collar 1 and pipeline it
Between gap successive elimination, it is final to generate interference fit, make pipe collar 1 and pipeline that elastic-plastic deformation occur jointly, generate sufficiently large
Radial compressive stress, while also obtain certain axial tensile capacity, realize the effect of sealed connection.
According to embodiments of the present invention is axially forced to formula tube joint assembly 100, has and does not have to re-start preservative treatment, nothing
It need to carry out non-destructive testing, the advantages such as labor intensity is low, mechanization degree is high.
With reference to Fig. 1 to Fig. 3 detailed descriptions work for being axially forced to formula tube joint assembly 100 according to embodiments of the present invention
Make process.
Specifically, the sealing for being axially forced to formula tube joint assembly 100 belongs to the direct contact seal in static seal, it is logical
The interference fit crossed between metal and metal and realize sealed connection, do not need to other sealants, gasket or sealing ring.
The pipe fitting for being axially forced to formula pipe fitting is mainly made of casing 2 and pipe collar 1, is matched using casing 2 and 1 interference of pipe collar
Close the sealed connection realized to pipeline.The structure of pipe collar 1 is complex, and there are the rib of protrusion in inner surface both sides, forms sealing ring,
Research shows that sealing ring section is designed as trapezoidal (such as isosceles trapezoid) most preferably, the first sealing ring 12 mainly seals, letter
Claim main seal ring, the second sealing ring 13 mainly prevents corrosion of the outer medium to main seal ring；There is a semicircle among inner surface
The rib of shape protrusion is for positioning connected pipeline, referred to as locating ring 14.The outer surface of pipe collar 1 is equipped with arc convex 11,
Control interference volume.
For 1 both ends of pipe collar set there are two casing 2, casing 2 has certain internal taper.Two casings 2 are opposite by axial force F effects
Movement, with the press-in of casing 2, the gap successive elimination between the sealing ring and pipeline of pipe collar 1 is final to generate interference fit,
Make pipe collar 1 and pipeline that elastic-plastic deformation occur jointly, generate sufficiently large radial compressive stress, while also obtain certain axial direction and resist
Drawing ability realizes the effect of sealed connection.Casing 2 can not only provide axial force, it can also be ensured that tube joint assembly 100 and pipe
The concentricity in road prevents from that loading bias occurs in installation process, so as to which Joint failure occur.So far it completes according to of the invention real
Apply the course of work for being axially forced to formula tube joint assembly 100 of example.
Other compositions for being axially forced to formula tube joint assembly 100 according to embodiments of the present invention and operation are for this field
All it is known for those of ordinary skill, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means to combine the embodiment or example particular features, structures, materials, or characteristics described
It is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms need not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It is combined in an appropriate manner in a or multiple embodiments or example.In addition, without conflicting with each other, the technology of this field
Different embodiments or examples described in this specification and the feature of different embodiments or examples can be combined by personnel
And combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. one kind is axially forced to formula tube joint assembly, described to be axially forced to formula tube joint assembly suitable for being set in the outside of pipeline,
It is characterised in that it includes：
Pipe collar, the pipe collar are coated at outside the pipeline, and have predetermined gap between the pipe collar and the pipeline；
Casing, described sleeve pipe is suitable for being set in the outside of the pipe collar, and the internal face of described sleeve pipe is configured at least one
Divide the shape with taper, the pipe collar is interference fitted to disappear with described sleeve pipe when described sleeve pipe is integrated with pipe collar assembling
Except the gap between the pipe collar and the pipeline.
2. according to claim 1 be axially forced to formula tube joint assembly, which is characterized in that the outer surface of the pipe collar is equipped with
The arc convex being adapted with the internal face of described sleeve pipe, with the interference volume that the pipe collar is controlled to be assembled with described sleeve pipe.
3. according to claim 2 be axially forced to formula tube joint assembly, which is characterized in that the internal face of the pipe collar is equipped with
The first sealing ring protruded on the inside of towards the pipe collar, the pipe collar are connected by first sealing ring and the seal for pipe joints
It connects.
4. according to claim 3 be axially forced to formula tube joint assembly, which is characterized in that the arc surface of the arc convex
Radius for 4mm-5mm, on the axial direction along the pipe collar, first sealing ring is spaced apart 1mm- with the arc surface
2mm。
5. according to claim 3 be axially forced to formula tube joint assembly, which is characterized in that the internal face of the pipe collar is also set
There is the second sealing ring, second sealing ring and first sealing ring are close along the axially spaced of the pipe collar, described second
Seal ring is adjacent to the end set of the pipe collar.
6. according to claim 5 be axially forced to formula tube joint assembly, which is characterized in that
The section of first sealing ring and second sealing ring is configured to trapezoidal shape, first sealing ring and institute
The upper bottom length for stating the second sealing ring is 0.8mm-1.3mm, and the bottom of first sealing ring and second sealing ring is grown
Degree is 2mm-3mm；
On the axial direction along the pipe collar, the distance that first sealing ring and second sealing ring are spaced apart is
10mm-14mm。
7. according to claim 3 be axially forced to formula tube joint assembly, which is characterized in that the internal face of the pipe collar is also set
There is the locating ring towards protrusion on the inside of the pipe collar to position connected pipe, the locating ring is located at the middle part of the pipe collar simultaneously
Neighbouring first sealing ring is set.
8. according to claim 1 be axially forced to formula tube joint assembly, which is characterized in that the pipe collar and described sleeve pipe are equal
For metalwork, the outer surface of the pipe collar is provided with the fitting projection protruded on the outside of the pipe collar, the internal face of described sleeve pipe
Equipped with the mating groove to match with the fitting projection, fitting projection cooperation in the mating groove so that the pipe collar with
Described sleeve pipe is connected.
9. it is axially forced to formula tube joint assembly according to any one of claim 1-8, which is characterized in that described sleeve pipe
Internal face has taper angles A and B, and meets：Taper angles A is 78 ° -85 °, and taper B is 65 ° -75 °, the pipe collar and described sleeve pipe mistake
Be full of cooperation interference volume be 0.9mm-1.1mm.
10. it is axially forced to formula tube joint assembly according to any one of claim 1-8, which is characterized in that described sleeve pipe
Including two, two described sleeve pipes are arranged symmetrically in the both ends of the pipe collar, when described sleeve pipe is assembled with the pipe collar, two institutes
It states casing and moves toward one another concentricity to be axially forced to formula tube joint assembly and the pipeline described in guarantee.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145831.6A CN108194723A (en) | 2018-02-12 | 2018-02-12 | It is axially forced to formula tube joint assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145831.6A CN108194723A (en) | 2018-02-12 | 2018-02-12 | It is axially forced to formula tube joint assembly |
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| CN108194723A true CN108194723A (en) | 2018-06-22 |
Family
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| CN201810145831.6A Pending CN108194723A (en) | 2018-02-12 | 2018-02-12 | It is axially forced to formula tube joint assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108041A (en) * | 2018-09-21 | 2019-01-01 | 武汉环投城市废弃物运营管理有限公司 | A kind of floral tube formula french drain and its floral tube connection method for refuse landfill |
| CN112610786A (en) * | 2020-12-11 | 2021-04-06 | 益阳生力材料科技股份有限公司 | Expansion joint for hard pipe and installation method thereof |
| CN114458180A (en) * | 2020-11-10 | 2022-05-10 | 中国石油天然气股份有限公司 | Sleeve connecting device |
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| CN207975356U (en) * | 2018-02-12 | 2018-10-16 | 中国恩菲工程技术有限公司 | It is axially forced to formula tube joint assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109108041A (en) * | 2018-09-21 | 2019-01-01 | 武汉环投城市废弃物运营管理有限公司 | A kind of floral tube formula french drain and its floral tube connection method for refuse landfill |
| CN114458180A (en) * | 2020-11-10 | 2022-05-10 | 中国石油天然气股份有限公司 | Sleeve connecting device |
| CN112610786A (en) * | 2020-12-11 | 2021-04-06 | 益阳生力材料科技股份有限公司 | Expansion joint for hard pipe and installation method thereof |
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