CN108443627A - A kind of flexible sealing self-locking bell socket - Google Patents
A kind of flexible sealing self-locking bell socket Download PDFInfo
- Publication number
- CN108443627A CN108443627A CN201810293022.XA CN201810293022A CN108443627A CN 108443627 A CN108443627 A CN 108443627A CN 201810293022 A CN201810293022 A CN 201810293022A CN 108443627 A CN108443627 A CN 108443627A
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- Prior art keywords
- face
- socket
- bellmouth
- annular projection
- tube body
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- 238000007789 sealing Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 230000037237 body shape Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 description 21
- 238000010276 construction Methods 0.000 description 16
- 229920001903 high density polyethylene Polymers 0.000 description 11
- 239000004700 high-density polyethylene Substances 0.000 description 11
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 238000002844 melting Methods 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a kind of flexible sealing self-locking bell sockets, including：Bellmouth, socket and sealing ring, wherein after the socket is assembled to the bellmouth, first kind annular projection and the second class ring-type form self-locking, and have gap between first kind annular projection and the second class annular projection so that socket pipe body can be deflected relative to socket tube body.
Description
Technical field
The present invention relates to pipe joint technical fields, more particularly it relates to which a kind of flexible sealing self-locking socket joint connects
Mouthful.
Background technology
With the further development of urbanization and the gradually improvement of rural residence condition, public infrastructure and family
Water supply and drainage demand is further promoted, this just be unable to do without the construction workings such as Pipe installing, repair.
The armored concrete interface tube of bell socket not tension, sealing performance is not high, tubing from great, corrosion resistance,
Smoothness is below HDPE (high density polyethylene (HDPE)) solid wall pipe, therefore HDPE solid wall pipes have a vast market application prospect.
In the installation of pipeline and maintenance construction work, such as in drainage pipeline non-excavating construction, there is side without foot in many cases
Therefore enough construction spaces can only form inclined borehole in side, then well be done in the other side, in Jing Neilianjieguandao, top pull
Tube coupling is completed to be laid with.
The tube coupling length of existing heavy caliber (DN >=300mm) HDPE solid wall pipes is to have 6 meters, 9 meters, 12 meters etc., is being installed
Or when maintenance construction, the existing docking mode of pipe joint only has heat-melting butt-joint, clamp connection, electric heating melting, shrink belt connection
Deng.These pipe joint modes have the disadvantage that in municipal pipeline excavation construction, non-excavating construction：1) heat-melting butt-joint needs
Certain place space can only could construct after the completion of docking, not be suitable for excavation construction, not be suitable for top pull in well and apply
Work；2) heat-melting butt-joint can form in-flanges, need to cut off in-flanges；3) electric melting connection is having water occasion dangerous, inconvenient
In construction；4) electric melting connection is easy the pipe that collapses in welding, generates leak source；5) shrink belt bonding strength is slightly lower, large-diameter pipe
Road heating is uneven, it has not been convenient to；6) clamp connection is not suitable for non-excavating construction；7) pipeline connection integrity is not strong, leakproofness
It can be poor；8) pipe joint easily disconnects, and the ability for bearing pulling force and vibrations is limited.
In addition, also there are two types of HDPE pipe joint modes, i.e. sealing ring bell socket in the market.The HDPE of bell socket is real
Wall short tube section is to cut out bellmouth at one end, and one end cuts out socket, passes through sealing ring hermetic seal, the HDPE of sealing ring bell socket
The seal of solid wall short tube section is not strong, does not have anti-pulling ability, easy to disconnect, no although can be used for non-excavation rehabilitation
Top construction can be used to draw.
In municipal drainage pipeline non-excavating construction, non-excavation rehabilitation, it is also desirable to a kind of to be connected in small space
It is easy to connect, airtight performance is good, stretch-proof easy interface HDPE solid wall pipe tube couplings, it is convenient in inspection shaft or active well under
It manages, inside the original pipeline of jacking, realizes and replace, but the pipeline of the above existing interface mode is not applicable.
Invention content
The present invention proposes that a kind of novel heavy caliber flexible sealing self-locking bell socket is at least part of to overcome above ask
Topic improves the connection convenience of pipe joint, reliability, economy.
According to one embodiment of present invention, a kind of flexible sealing self-locking bell socket is provided, including：
Bellmouth, the bellmouth include bellmouth tube body, are held positioned at the bellmouth outer wall of the bellmouth outer surface of tube body, positioned at described
The bellmouth inner wall of mouth inner surface of tube body, based on first kind annular projection made of the bellmouth inwall processing, and based on described
The the first planomural section for extending to the first kind annular projection made of bellmouth inwall processing from bellmouth end face, wherein described first
The pipe thickness of planomural section is less than untreated pipe thickness；
Socket, the socket include socket tube body, are inserted positioned at the receptacle wall of the socket outer surface of tube body, positioned at described
The socket inner wall of mouth inner surface of tube body is based on the socket based on the second class annular projection that the receptacle wall is process
The seal groove adjacent with the second class annular projection that outer wall is process, and be process based on the receptacle wall
The second planomural section adjacent with the seal groove, wherein the pipe thickness of the second planomural section is less than untreated thickness of pipe wall
Degree, seal groove are recessed relative to the second class annular projection and the second planomural section to body central；And
Sealing ring, the sealing ring are arranged in the seal groove,
Wherein after the socket is assembled to the bellmouth, first kind annular projection and the second class ring-type form self-locking,
And there is gap between first kind annular projection and the second class annular projection so that socket pipe body can be inclined relative to socket tube body
Turn.
In one embodiment of the invention, after the socket is assembled to the bellmouth, the first planomural section with
There is contact gap between the second planomural section.
In one embodiment of the invention, bellmouth tube body relative to the maximum deflection angle of socket tube body in 3 degree.
In one embodiment of the invention, the first kind annular projection of the bellmouth tube body is caught in the socket tube body
Seal groove, crush seal circle.
In one embodiment of the invention, the first kind annular projection of the bellmouth tube body is not caught in the socket tube body
Seal groove, by the first planomural section crush seal circle of the bellmouth tube body.
In one embodiment of the invention, the sealing ring be selected from V-shaped seal ring, U-shaped sealing ring, O types sealing ring or
The material of y-type seal ring and/or the sealing ring is selected from nitrile rubber, silica gel, fluorine glue, EP rubbers, polytetrafluoroethylene (PTFE) or poly-
Urethane.
In one embodiment of the invention, the quantity of the seal groove is greater than or equal to 2, and in each seal groove
It is provided with sealing ring.
In one embodiment of the invention, the first kind annular projection includes：
The first face being connected with the bellmouth tube body；
The second face extended from the one side in first face to body central, first side in second face and described first
Face is connected, and first side in second face is connected with the top of the first kind annular projection；And
The third face extended from the another side in first face to body central, first side in the third face and described the
The top of a kind of annular projection is connected, and second side in third face is connected with the first face, and the second of third face is at opposite first
Closer to bellmouth end face；
The second class annular projection includes：
The fourth face being connected with the socket tube body；
The 5th face extended outside from the fourth face to tube body, the first side and the fourth face phase in the 5th face
Even, second side in the 5th face is connected with the top of the second class annular projection；And
The 6th face extended outside from the fourth face to tube body, first side in the 6th face and second class are cyclic annular
The top of protrusion is connected, and second side in the 6th face is connected with fourth face, and the second of the 6th face is closer slotting at opposite first
Mouth end face.
In one embodiment of the invention, the quantity of the first kind annular projection is more than or equal to 2, second class
The quantity of annular projection is more than or equal to 2, to make two zigzags of its section at self-locking.
In one embodiment of the invention, the first kind annular projection and the second class annular projection are along conduit axis
Section shape is triangle, trapezoidal or semicircle.
Flexible sealing self-locking bell and spigot disclosed by the invention is used processes first kind annular protrusion on bellmouth structure, is inserting
Processing can form the second class annular protrusion of self-locking installation with first kind annular protrusion on mouth structure, increase sealing ring sealing, so
Outlet structure alignment bellmouth structure is subjected to extruding installation afterwards, wherein after installation is complete, first kind annular protrusion and the second class ring
There is a fixed gap between shape protrusion so that bell and spigot after installation can small angle deflection, such as 0-3 degree, better adaptability.
Bellmouth and jack part increase planomural section, are more convenient installation.When tube coupling is installed, the pluggable socket section of new clothes tube coupling is more, side
Just sealing is realized in counterpart, the contact by planomural section with sealing ring.It can also increase contact gap in planomural section, keep interface inclined
Turn.By first kind annular protrusion and the second class annular protrusion, bell and spigot realizes self-locking and deflection, can better adapt to unevenness
Even sedimentation.
Description of the drawings
For the above and other advantages and features for each embodiment that the present invention is furture elucidated, refer to the attached drawing is presented
The more specific description of various embodiments of the present invention.It is appreciated that these attached drawings only describe the exemplary embodiments of the present invention, therefore
It is not to be regarded as being restriction on its scope.In the accompanying drawings, in order to cheer and bright, identical or corresponding component will use identical or class
As mark indicate.
Fig. 1 shows a kind of bellmouth structure 100 of flexible sealing self-locking bell socket according to an embodiment of the invention
Schematic cross-section.
Fig. 2 shows a kind of outlet structures 200 of flexible sealing self-locking bell socket according to an embodiment of the invention
Schematic cross-section.
Fig. 3 A and Fig. 3 B show a kind of flexible sealing self-locking bell socket structure 300 according to an embodiment of the invention
Schematic cross-section.
Fig. 4 A and Fig. 4 B show a kind of flexible sealing self-locking bell socket structure 400 according to an embodiment of the invention
Schematic cross-section.
Fig. 5 shows the diagrammatic cross-section of the according to the present invention first exemplary tube body 500 with bellmouth and outlet structure.
Fig. 6 shows the diagrammatic cross-section of the according to the present invention second exemplary tube body 600 with bellmouth and outlet structure.
Fig. 7 shows the diagrammatic cross-section of the exemplary tube body 700 with bellmouth and outlet structure of third according to the present invention.
Fig. 8 shows the diagrammatic cross-section of the according to the present invention 4th exemplary tube body 800 with bellmouth and outlet structure.
Fig. 9 shows a kind of partial structurtes 900 of flexible sealing self-locking bell socket according to an embodiment of the invention
Schematic cross-section.
Specific implementation mode
In the following description, with reference to each embodiment, present invention is described.However, those skilled in the art will recognize
Know can in the case of neither one or multiple specific details or with it is other replacement and/or addition method, material or component
Implement each embodiment together.In other situations, it is not shown or well known structure, material or operation is not described in detail in order to avoid making this
The aspects of each embodiment of invention is obscure.Similarly, for purposes of explanation, specific quantity, material and configuration are elaborated, with
Comprehensive understanding to the embodiment of the present invention is just provided.However, the present invention can be implemented in the case of no specific detail.This
Outside, it should be understood that each embodiment shown in the accompanying drawings is illustrative expression and is not drawn necessarily to scale.
In the present specification, the reference of " one embodiment " or " embodiment " is meaned to combine embodiment description
A particular feature, structure, or characteristic is included at least one embodiment of the invention.Occur in everywhere in this specification short
Language is not necessarily all referring to the same embodiment " in one embodiment ".
This kind of flexible sealing self-locking bell and spigot according to the present invention and method is accepted, using processing first on bellmouth structure
Class annular protrusion, processing can be with the second class annular protrusion of first kind annular protrusion formation self-locking installation, increasing in outlet structure
Seal sealing is encrypted, outlet structure alignment bellmouth structure is then subjected to extruding installation, wherein after installation is complete, first kind annular
There is a fixed gap between protrusion and the second class annular protrusion so that bell and spigot after installation can small angle deflection, such as 0-3
Degree, better adaptability.Bellmouth and jack part increase planomural section, are more convenient installation.When tube coupling is installed, new clothes tube coupling can be inserted into
Socket section is more, facilitates counterpart, and sealing is realized in the contact by planomural section with sealing ring.It is empty can also to increase contact in planomural section
Gap allows interface to deflect.By first kind annular protrusion and the second class annular protrusion, bell and spigot realizes self-locking and deflection, energy
Enough better adapt to differential settlement.
Double containment bell socket disclosed by the invention and undertaking method are strong with 1) pipeline connection integrity, can not after connection
Separation；2) pipe joint anti-pulling can be used for drawing jacking construction；3) pipeline connects good leak tightness, and sealing performance is excellent；4) it manages
Road is easy to connect, and construction is quick, and an interface can complete connection in 2 minutes；5) pipe joint is without in-flanges；6) pipeline connects
Space is small needed for mouthful, and tool is simple；7) the advantages that at low cost.
Fig. 1 is a kind of bellmouth structure 100 of pipeline flexible sealing self-locking bell and spigot according to an embodiment of the invention
Schematic cross-section.As shown in Figure 1, the bellmouth structure 100 of the flexible sealing self-locking bell socket includes bellmouth tube body 101, bellmouth
Outer wall 102, the first kind annular projection 104 being process based on bellmouth inner wall 103, is based on bellmouth inner wall at bellmouth inner wall 103
The 103 slave bellmouth end faces being process extend to the planomural section 105 of first kind annular projection 104.The pipe thickness of planomural section 105
Less than untreated pipe thickness
Bellmouth tube body 101 can be that specific dimensions HDPE solid wall pipes, the PE based on job requirement are managed or other are similar to material
The pipeline of material.Its material has certain elastic deformability, to meet the subsequently socket knot with flexible sealing self-locking bell socket
The assembly demand of structure.
Bellmouth outer wall 102 is not further processed, generally remains structural integrity, (such as outer end face is horizontal consistent for size uniform
Property it is preferable) etc. basic demands, to meet the follow-up assembly demand with the outlet structure of flexible sealing self-locking bell socket.
Bellmouth inner wall 103 is divided to for two parts, and wherein first part is the common tube body for leaving bellmouth end face specific range
Inside；Second part is from the inward-facing interface section for extending specific range of female end, and the inner wall of interface section includes each other
Connected planomural section and first kind annular projection section.Planomural section is smooth internal walls, and first kind ring is extended to from female end is inward-facing
Shape raised section.First kind annular projection section can be tapered, and the taper is bigger closer to bellmouth end face diameter, apart from bellmouth end face
Farthest root diameter (RD) is minimum.First kind annular projection section may include one or more first kind annular projections 104.
First kind annular projection 104 is located at the inside of bellmouth tube body 101, is connected with bellmouth inner wall 103.First kind ring-type is convex
104 are played to be process by bellmouth inner wall 103.First kind annular projection 104 is usually ring-type, can also be processed into discrete several sections
Raised (not shown).In one embodiment of the invention, first kind annular projection 104 may include and bellmouth tube body 101
The first connected face 1041；Extend from the first face 1041 to the center of tube body 101 and vertical with 101 axes O O ' of bellmouth tube body
Second face 1042, first side in the second face 1042 are connected with the first face 1041, and second side in the second face 1042 is that the first kind is cyclic annular
The top of protrusion 104；And the third face 1043 being connected with the second face 1042 and the first face 1041.The first of third face 1043
While with the second face 1042 second while be connected, second side in third face 1043 is connected with the first face 1041, and second side is opposite
First side is closer to bellmouth end face.First kind annular projection 104 is cut out by side in socket pipe body with rotary cutter, and quantity is more than etc.
In 1.
More specifically, shown on the right side of Fig. 1, in the section along axes O O ', the first face of first kind annular protrusion 104
1041 and intersection and the axes O O ' angulations of section be α；Second face 1042 of first kind annular protrusion 104 and socket pipe
101 axes O O ' of body is substantially vertical；The hatching in the third face 1043 of first kind annular protrusion 104 and 101 axis of bellmouth tube body
OO ' angulations are β, and angle [alpha], β are acute angle, and β ＞ α.In a specific embodiment of the present invention, angle [alpha] is in 2-10 degree
In the range of, angle beta is in the range of 20-60 degree.However protection scope of the present invention is without being limited thereto, in other realities of the present invention
It applies in example, the second face 1042 can not be vertical with axes O O ', but at other specific angles.Those skilled in the art answers
The understanding, first kind annular protrusion 104 are processed with tube body material itself, for ease of description, are shown in sectional view
Simultaneously the oblique line is not present in the oblique line in its first face 1041, true cross section.
In addition, as shown in the lower-lefts Fig. 1, meet following requirement, i.e. wall at bellmouth outer end face in the pipe thickness of socket
Thickness is d, and the wall thickness at bellmouth inner face is D, and wherein D ＞ d, d are not less than 3mm.
Fig. 2 is a kind of 200 section of outlet structure of flexible sealing self-locking bell and spigot according to an embodiment of the invention
Schematic diagram.As shown in Fig. 2, the outlet structure 200 of the flexible sealing self-locking bell socket further comprises socket tube body 201, inserts
Mouthful outer wall 202, socket inner wall 203, one that extends based on the slave bellmouth end face that receptacle wall 202 is process certain distance or
Multiple second class annular projections 204, one adjacent with the second class annular projection 204 being process based on receptacle wall 202
Or multiple seal grooves 205 and the planomural section 206 adjacent with seal groove 205 is process based on receptacle wall 202.Planomural section
206 pipe thickness is less than untreated pipe thickness.Seal groove 205 is relative to the second class annular projection 204 and planomural section
206 to lower recess.
Socket tube body 201 as the tube body of aforementioned bellmouth, for based on job requirement specific dimensions HDPE solid wall pipes,
PE is managed or the pipeline of other similar materials.Its material has certain elastic deformability, to meet subsequently with flexible sealing certainly
Lock the assembly demand of the bellmouth structure of bell socket.
Socket inner wall 203 is not further processed, generally remains structural integrity, (such as outer end face is horizontal consistent for size uniform
Property it is preferable) etc. basic demands, to meet follow-up assembly need with the bellmouth structure of flexible sealing self-locking bell socket
It asks.
Receptacle wall 202 is divided to for two parts, and wherein first part is the common tube body for leaving socket end face specific range
Outside；Second part is from the inward-facing interface section for extending specific range of socket end, and interface section includes：From socket end face
Inwardly adjacent the second class annular projection section, seal groove segments and planomural section successively.
The outer wall of second class annular projection section can be tapered, and the taper is smaller closer to socket end face diameter, and distance is inserted
The farthest root diameter (RD) in mouth end face is maximum.Interface section may include one or more second class annular projections 204.Seal groove segments with
The root of second class annular projection section is connected, and may include one or more seal grooves 205.Although illustrating only one in the accompanying drawings
A seal groove, but it should be appreciated by those skilled in the art, including more than one seal groove outlet structure also in this hair
In bright protection domain.Planomural section is connected with seal groove segments.
Second class annular projection 204 is located at the outside of socket tube body 201, is connected with receptacle wall 202 and (is based on outer wall 202
It is process), the second class annular projection 204 is generally also ring-type, can also equally be processed into several sections of discrete circular arcs (in figure not
It shows).Second class annular projection 204 may include the first face 2041 being connected with socket tube body 201；From the first face 2041 to pipe
The external of body 201 extends and second face 2042 vertical with 201 axes O O ' of socket tube body, first side in the second face 2042 and the
2041 are connected on one side, and second side in the second face 2042 is the top of the second class annular projection 204；And with the second face 2042 and
2041 connected third face 2043 on one side.First side in third face 2043 is connected with 2042 outer end of the second face, third face 2043
Second side is connected with the first face 2041, and this second at opposite first closer to socket end face 205.Second class annular projection
204 are cut out by the external side of jack tube with rotary cutter, and quantity is more than or equal to 1.
Seal groove 205 is between the peaceful arm section of the second class annular projection 204 206 and with being recessed to body central
Slot.
More specifically, as shown in the upper left sides Fig. 2, in the section along axes O O ', the first of the second class annular protrusion 204
The intersection of face 2041 and section is α ' with 201 axes O O ' angulations of socket tube body；The second of second class annular protrusion 204
Face 2042 and 101 axes O O ' of interface tube body are substantially vertical；The intersection in the third face 2043 and section of the second class annular protrusion 204
Be β ', angle [alpha] with 101 axes O O ' angulations of interface tube body ', β ' be acute angle, and β ' ＞ α '.Angle [alpha] ' and institute above
The α stated is of substantially equal；Angle beta ' it is of substantially equal with β described above.However protection scope of the present invention is without being limited thereto, in this hair
In bright other embodiments, the second face 2042 can not be vertical with axes O O ', but at other specific angles.This field
It is to be understood by the skilled artisans that the second class annular protrusion 204 is processed with tube body material itself, for ease of description, cut
Show that simultaneously the oblique line is not present in the oblique line in its first face 2041, true cross section in the figure of face.
In addition, as shown in Fig. 2 upper rights, meet following requirement, i.e. wall at interface outer end face in the pipe thickness of interface
Thickness is d ', and the wall thickness at bellmouth inner face is D ', and wherein D ' ＞ d ', d are not less than 3mm.
Fig. 3 A show a kind of cutting for pipeline flexible sealing self-locking faucet structure 300 according to an embodiment of the invention
Face schematic diagram.As shown in Figure 3A, shown in flexible sealing self-locking bell socket structure 300 bellmouth structure, Fig. 2 shown in Fig. 1
Outlet structure and the sealing ring 310 that is arranged in seal groove be assembled, further comprise bellmouth tube body 101, jack tube
Body 201 and bell and spigot 301.
Sealing ring 310 can be selected from V-shaped seal ring, U-shaped sealing ring, O-ring seal, y-type seal ring etc..Sealing ring
310 material can be selected from nitrile rubber, silica gel, fluorine glue, EP rubbers, polytetrafluoroethylene (PTFE), polyurethane etc..
Shown on the right side of 301 specific schematic diagram of bell and spigot such as Fig. 3 A, it is to be inserted into bellmouth knot along the directions diagram F by outlet structure
In structure, after extruding, the second class annular protrusion 204 of outlet structure successively with the first kind annular protrusion 104 of bellmouth structure
Form self-locking screens installation.The first kind annular projection 104 of bellmouth tube body 101 and the second class annular projection of socket tube body 201
204 geomery is complementary, but has specific gap to each other.Therefore, bellmouth tube body 101 is completed to assemble with socket tube body 201
Afterwards, first kind annular projection 104 and the second class annular projection 204 form self-locking.And due to first kind annular projection 104 with
There is certain gap, the flexibility using tubing itself and interface gap, bellmouth tube body 101 between second class annular projection 204
With socket tube body 201 can small angle deflection, such as 0-3 degree, and sealing and self-locking are kept in deflection resists pulling force.
In other words, it is more than the second of socket tube body 201 relative to the width of the concave tooth of first kind annular projection 104 on bellmouth tube body 101
The width of class annular projection 204 is more than socket pipe on socket tube body 201 relative to the concave tooth width of the second class annular projection 204
The width of the first kind annular projection 104 of body 101, therefore bellmouth tube body 101 is completed with socket tube body 201 after assembling, the first kind
There is gap between annular projection 104 and the second class annular projection 204.
Also there can be contact gap between the planomural section of bellmouth tube body 101 and the planomural section of socket tube body 201 so that interface
It can deflect.
Fig. 3 B show bellmouth tube body and socket tube body with the interface cross section schematic diagram after low-angle α deflections.
After completion of installation, the first kind annular projection 104 of bellmouth tube body 101 is caught in the seal groove of socket tube body 201,
Crush seal circle 310, to realize sealing.It is clear in order to illustrate in Fig. 3 A and Fig. 3 B, do not show that sealing ring 310 by
Deformation after extruding, however it should be appreciated by those skilled in the art sealing ring 310 will generate elasticity after being squeezed and become
Shape fits closely the first kind annular projection 104 and planomural section of bellmouth tube body 101, in bellmouth tube body 101 and socket tube body
Sealing is formed between 201.
Bellmouth tube body and socket tube body increase planomural section 105 and 206, are more convenient installation.When tube coupling is installed, new tubulature
The pluggable socket section of section is more, facilitates counterpart, easier for installation.Flexible sealing self-locking bell and spigot shown in Fig. 3 A and Fig. 3 B
Structure can self-locking and deflection, differential settlement can be better adapted to.
Fig. 4 A show a kind of cutting for flexible sealing self-locking bell socket structure 400 according to an embodiment of the invention
Face schematic diagram.Bell socket structure 400 is similar with bell socket structure 300 shown in Fig. 3 A, the difference is that, complete self-locking
When bellmouth tube body first kind annular projection be not caught in seal groove, only by planomural crush seal circle.Fig. 4 B show bellmouth tube body and
Socket tube body is with the interface cross section schematic diagram after low-angle α deflections.It is clear in order to illustrate in Fig. 4 A and Fig. 4 B, do not show
Go out the deformation after sealing ring 310 is squeezed, however it should be appreciated by those skilled in the art sealing ring 310 is by crowded
Flexible deformation will be generated after pressure, fits closely the planomural section of bellmouth tube body 101, in bellmouth tube body 101 and socket tube body 201
Between formed sealing.
Two embodiments shown in Fig. 3 A-3B and Fig. 4 A-4B compare：The sealing performance of Fig. 3 A-3B illustrated embodiments is more preferable, from
When being locked into, sealing ring squeezes more, and sealing is tighter.
In conjunction with Fig. 1 to Fig. 4 with the first kind annular projection 104 of section shape position triangle and the second class annular projection 204
Embodiment invention has been described, however it should be appreciated by one skilled in art that protection scope of the present invention not
It is limited to this, the protrusion of bellmouth tube body and socket tube body can also be other shapes.Fig. 5 to Fig. 8 shows first kind annular projection
104 and second class annular projection 204 several possible section shapes.
Fig. 5 shows the diagrammatic cross-section of the according to the present invention first exemplary tube body 500 with bellmouth and outlet structure.
As shown in figure 5, one end of tube body 500 is bellmouth 101, other end position socket 201, first kind annular projection 104 and the second class ring
The section shape of shape protrusion 204 is triangle.The difference is that, first kind ring-type is convex with Fig. 1 and embodiment shown in Fig. 2
Play 104 not vertical with axis with each face of the second class annular projection 204, and the inner wall of bellmouth 101 and socket 201
Outer wall is substantially cylindrical rather than taper.The bellmouth and socket interface being mutually butted are wanted mutually to agree with so that first
Class annular projection 104 and the second class annular projection 204 formed self-locking and between there is gap, and the thickness of upper end bell planomural
The thickness initial less than tube body 500 with the sum of the depth of lower end socket planomural recess.In other words, on bellmouth tube body 101 relative to
The width of the concave tooth of first kind annular projection 104 is more than the width of the second class annular projection 204 of socket tube body 201, jack tube
It is more than the first kind annular projection 104 of bellmouth tube body 101 on body 201 relative to the concave tooth width of the second class annular projection 204
Width, therefore bellmouth tube body 101 is completed with socket tube body 201 after assembling, first kind annular projection 104 and the second class annular projection
There is gap between 204.
Fig. 6 shows the diagrammatic cross-section of the according to the present invention second exemplary tube body 600 with bellmouth and outlet structure.
As shown in fig. 6, one end of tube body 600 is bellmouth 101, other end position socket 201, first kind annular projection 104 and the second class ring
The section shape of shape protrusion 204 is triangle.The bellmouth and socket interface being mutually butted are wanted mutually to agree with so that the first kind
Annular projection 104 and the second class annular projection 204 form self-locking and have gap between the two, and upper end bell planomural
The sum of thickness and the depth of lower end socket planomural recess are less than the initial thickness of tube body 600.In other words, phase on bellmouth tube body 101
It is more than the width of the second class annular projection 204 of socket tube body 201 for the width of the concave tooth of first kind annular projection 104, inserts
It is more than the first kind annular projection of bellmouth tube body 101 on mouth tube body 201 relative to the concave tooth width of the second class annular projection 204
104 width, therefore bellmouth tube body 101 is completed with socket tube body 201 after assembling, first kind annular projection 104 and the second class ring
There is gap between shape protrusion 204.With it is shown in fig. 5 exemplary the difference is that, the inner wall of bellmouth 101 and socket 201
Outer wall is generally conical.
Fig. 7 shows the diagrammatic cross-section of the exemplary tube body 700 with bellmouth and outlet structure of third according to the present invention.
As shown in fig. 7, one end of tube body 700 is bellmouth 101, other end position socket 201, first kind annular projection 104 and the second class ring
The section shape of shape protrusion 204 is approximately trapezoidal.The bellmouth and socket interface being mutually butted are wanted mutually to agree with so that first
Class annular projection 104 and the second class annular projection 204 form self-locking and have gap, and upper end bell planomural between the two
The sum of thickness and the depth of lower end socket planomural recess be less than the initial thickness of tube body 700.In other words, on bellmouth tube body 101
The width of concave tooth relative to first kind annular projection 104 is more than the width of the second class annular projection 204 of socket tube body 201,
The first kind ring-type for being more than bellmouth tube body 101 on socket tube body 201 relative to the concave tooth width of the second class annular projection 204 is convex
104 width is played, therefore bellmouth tube body 101 is completed with socket tube body 201 after assembling, first kind annular projection 104 and the second class
There is gap between annular projection 204.With it is shown in fig. 5 exemplary the difference is that, first kind annular projection 104 and second
It is scabbled on the top of class annular projection 204.The width c of 204 tip platform of first kind annular projection 104 and the second class annular projection
In the range of 0.5-5mm.The inner wall of the bellmouth 101 and outer wall of socket 201 is substantially cylindrical rather than taper.
Fig. 8 shows the diagrammatic cross-section of the according to the present invention 4th exemplary tube body 800 with bellmouth and outlet structure.
With it is shown in Fig. 7 exemplary the difference is that, and the inner wall of bellmouth and the outer wall of socket are generally conical.
In figure 1 above to embodiment shown in Fig. 8, the shape of first kind annular protrusion and the second class annular protrusion is mutual
It mends, and after completing assembly, first kind annular protrusion and the second class annular protrusion have a fixed gap along pipe axis.However this field
Technical staff should be realized that protection scope of the present invention is without being limited thereto, first kind annular protrusion and the second class annular protrusion
Shape can not be complementary shape, if after installation is complete first kind annular protrusion and the second class annular protrusion can be formed self-locking and
There is gap between the two so that bellmouth and the opposite small angle deflection of socket energy should just fall into protection scope of the present invention.
In some embodiments of the invention, heretofore described first kind annular protrusion and/or the second class convex annular
It rises and can also be curved protrusion 900 as shown in Figure 9.
In a particular application, bellmouth disclosed by the invention and/or outlet structure can be also used for other pipelines, for example, will
Bell and spigot is welded to other tubing made of PE pipes.For example, bell and spigot made of can managing PE be welded to internal-rib reinforced pipe, hollow
On wall pipe or double-wall corrugated pipe.
This kind of flexible sealing self-locking bell and spigot according to the present invention and method is accepted, using processing first on bellmouth structure
Class annular protrusion, processing can be with the second class annular protrusion of first kind annular protrusion formation self-locking installation, increasing in outlet structure
Seal sealing is encrypted, outlet structure alignment bellmouth structure is then subjected to extruding installation, wherein after installation is complete, first kind annular
There is a fixed gap between protrusion and the second class annular protrusion so that bell and spigot after installation can small angle deflection, such as 0-3
Degree, better adaptability.Bellmouth and jack part increase planomural section, are more convenient installation.When tube coupling is installed, new clothes tube coupling can be inserted into
Socket section is more, facilitates counterpart, and sealing is realized in the contact by planomural section with sealing ring.It is empty can also to increase contact in planomural section
Gap allows interface to deflect.By first kind annular protrusion and the second class annular protrusion, bell and spigot realizes self-locking and deflection, energy
Enough better adapt to differential settlement.
Socket is accepted in flexible sealing self-locking disclosed by the invention and undertaking method is strong with 1) pipeline connection integrity, connection
After can not detach；2) pipe joint anti-pulling can be used for drawing jacking construction；3) pipeline connects good leak tightness, and sealing performance is excellent
It is different；4) pipeline is easy to connect, and construction is quick, and an interface can complete connection in 2 minutes；5) pipe joint is without in-flanges；
6) space needed for pipe joint is small, and tool is simple；7) the advantages that at low cost.
Although described above is various embodiments of the present invention, however, it is to be understood that they are intended only as example to present
, and without limitation.For those skilled in the relevant art it is readily apparent that various combinations, modification can be made to it
Without departing from the spirit and scope of the invention with change.Therefore, the width of the invention disclosed herein and range should not be upper
It states disclosed exemplary embodiment to be limited, and should be defined according only to the appended claims and its equivalent replacement.
Claims (10)
1. a kind of flexible sealing self-locking bell socket, including：
Bellmouth, the bellmouth include bellmouth tube body, positioned at the bellmouth outer surface of tube body bellmouth outer wall, be located at the socket pipe
The bellmouth inner wall on internal surface based on first kind annular projection made of the bellmouth inwall processing, and is based on the bellmouth
The the first planomural section for extending to the first kind annular projection made of inwall processing from bellmouth end face, wherein first planomural
The pipe thickness of section is less than untreated pipe thickness；
Socket, the socket include socket tube body, positioned at the socket outer surface of tube body receptacle wall, be located at the jack tube
The socket inner wall on internal surface is based on the receptacle wall based on the second class annular projection that the receptacle wall is process
The seal groove adjacent with the second class annular projection being process, and be process based on the receptacle wall with institute
The second adjacent planomural section of seal groove is stated, wherein the pipe thickness of the second planomural section is less than untreated pipe thickness,
Seal groove is recessed relative to the second class annular projection and the second planomural section to body central；And
Sealing ring, the sealing ring are arranged in the seal groove,
Wherein after the socket is assembled to the bellmouth, first kind annular projection and the formation self-locking of the second class ring-type, and the
There is gap so that socket pipe body can be deflected relative to socket tube body between a kind of annular projection and the second class annular projection.
2. flexible sealing self-locking bell socket as described in claim 1, which is characterized in that described when the socket to be assembled to
After bellmouth, there is contact gap between the first planomural section and the second planomural section.
3. flexible sealing self-locking bell socket as described in claim 1, which is characterized in that bellmouth tube body is relative to socket tube body
Maximum deflection angle within 3 degree.
4. flexible sealing self-locking bell socket as described in claim 1, which is characterized in that the first kind ring of the bellmouth tube body
Shape protrusion is caught in the seal groove of the socket tube body, crush seal circle.
5. flexible sealing self-locking bell socket as described in claim 1, which is characterized in that the first kind ring of the bellmouth tube body
Shape protrusion is not caught in the seal groove of the socket tube body, by the first planomural section crush seal circle of the bellmouth tube body.
6. flexible sealing self-locking bell socket as described in claim 1, which is characterized in that the sealing ring is selected from V-seal
Circle, U-shaped sealing ring, O-ring seal or the material of y-type seal ring and/or the sealing ring are selected from nitrile rubber, silica gel, fluorine
Glue, EP rubbers, polytetrafluoroethylene (PTFE) or polyurethane.
7. flexible sealing self-locking bell socket as described in claim 1, which is characterized in that the quantity of the seal groove be more than or
Equal to 2, and sealing ring is both provided in each seal groove.
8. flexible sealing self-locking bell socket as described in claim 1, which is characterized in that the first kind annular projection packet
It includes：
The first face being connected with the bellmouth tube body；
The second face extended from the one side in first face to body central, the first side and first face phase in second face
Even, first side in second face is connected with the top of the first kind annular projection；And
The third face extended from the another side in first face to body central, the first side and the first kind in the third face
The top of annular projection is connected, and second side in third face is connected with the first face, and the second of third face more connects at opposite first
Nearly bellmouth end face；
The second class annular projection includes：
The fourth face being connected with the socket tube body；
First side in the 5th face extended outside from the fourth face to tube body, the 5th face is connected with the fourth face, institute
The second side for stating the 5th face is connected with the top of the second class annular projection；And
The 6th face extended outside from the fourth face to tube body, the first side and the second class annular projection in the 6th face
Top be connected, second side in the 6th face is connected with fourth face, and the second of the 6th face while with respect to first closer to socket end
Face.
9. flexible sealing self-locking bell socket as described in claim 1, which is characterized in that the number of the first kind annular projection
Amount is more than or equal to 2, and the quantity of the second class annular projection is more than or equal to 2, to make two saws of its section at self-locking
Dentation.
10. flexible sealing self-locking bell socket as described in claim 1, which is characterized in that the first kind annular projection and
Second class annular projection is triangle, trapezoidal or semicircle along the section shape of conduit axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293022.XA CN108443627A (en) | 2018-03-30 | 2018-03-30 | A kind of flexible sealing self-locking bell socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293022.XA CN108443627A (en) | 2018-03-30 | 2018-03-30 | A kind of flexible sealing self-locking bell socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108443627A true CN108443627A (en) | 2018-08-24 |
Family
ID=63198170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810293022.XA Pending CN108443627A (en) | 2018-03-30 | 2018-03-30 | A kind of flexible sealing self-locking bell socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443627A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032445A (en) * | 2020-09-08 | 2020-12-04 | 广东智慧碧管管道技术科技有限公司 | Flexible pipeline interface structure capable of adapting to geological settlement |
| CN112032446A (en) * | 2020-09-08 | 2020-12-04 | 广东智慧碧管管道技术科技有限公司 | Detachable pipeline interface structure capable of adapting to geological settlement |
| CN112557188A (en) * | 2020-11-23 | 2021-03-26 | 东莞市泰至塑料五金有限公司 | Flexible self-locking socket pipe joint and pipe joint tensile test method |
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| CN112557188A (en) * | 2020-11-23 | 2021-03-26 | 东莞市泰至塑料五金有限公司 | Flexible self-locking socket pipe joint and pipe joint tensile test method |
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Application publication date: 20180824 |