CN112050010A - Sealing interface structure of pipeline - Google Patents
Sealing interface structure of pipeline Download PDFInfo
- Publication number
- CN112050010A CN112050010A CN202011038378.2A CN202011038378A CN112050010A CN 112050010 A CN112050010 A CN 112050010A CN 202011038378 A CN202011038378 A CN 202011038378A CN 112050010 A CN112050010 A CN 112050010A
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- CN
- China
- Prior art keywords
- socket
- centering
- concave surface
- section
- bending
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 59
- 238000005452 bending Methods 0.000 claims abstract description 61
- 239000000463 material Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Images
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
- F16L47/065—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 outer surface of pipe and inner surface of sleeve or socket, the sealing rings being placed previously on the male part
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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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
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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
- F16L31/00—Arrangements for connecting hoses to one another or to flexible sleeves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
Abstract
The invention discloses a sealing interface structure of a pipeline, which comprises a socket pipe body, a socket pipe body and a sealing structure. The inner wall of the bellmouth pipe body is provided with a bellmouth centering section, a bellmouth connecting section and a bellmouth matching section, the bellmouth centering section is provided with an arc-shaped bending centering concave surface, the bending centering concave surface is a spherical concave surface or an ellipsoidal concave surface, the bellmouth connecting section is provided with an annular groove, and the inner wall of the left side of the annular groove is provided with an auxiliary centering concave surface which is concentric with the bending centering concave surface or concentric with the ellipsoid concave surface; the outer wall of the socket pipe body is provided with a socket centering section, a socket connecting section and a socket matching section, the socket connecting section is provided with an annular bulge, the socket centering section is provided with a bending centering convex surface, and the outer wall of the left side of the annular bulge is provided with an auxiliary centering convex surface; seal structure seal groove and sealing washer. After the pipeline bell and spigot is bent, the depth of the sealing groove is unchanged, and excellent sealing performance can still be maintained.
Description
Technical Field
The invention relates to a pipeline interface structure, in particular to a pipeline sealing interface structure.
Background
The HDPE pipeline joint mode commonly seen in the market is a sealing ring socket joint. The HDPE solid wall short pipe joint of the socket joint is characterized in that a socket is cut out at one end, a socket is cut out at the other end, a pair of flat wall sections which are matched with each other are arranged on the inner wall of the socket and the inner wall of the socket, a sealing groove is arranged on the pair of flat wall sections, and O-shaped ring water stopping is arranged in the sealing groove.
Such interface structure has following problem, when taking place the geology and subside, because be subject to the lower rigidity of pipeline, a little bending can take place for the pipeline kneck, leads to the flat wall section on the flat wall section of bellmouth one side and the socket to produce certain displacement, and then leads to the degree of depth increase of seal groove, and the volume of the O type circle of setting in the seal groove can not increase, leads to can produce the clearance between sealing washer and the O type circle, and then the condition that appears leaking, and sealing performance is not good.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a pipe sealing joint structure capable of maintaining excellent sealing performance after geological settlement occurs.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a sealing interface structure for a conduit, comprising:
the inner wall of the bellmouth pipe body is sequentially provided with a bellmouth centering section, a bellmouth connecting section and a bellmouth matching section from right to left, the bellmouth centering section is provided with an arc-shaped bending centering concave surface, the bending centering concave surface is a spherical concave surface or an ellipsoidal concave surface, the bellmouth connecting section is provided with a plurality of annular grooves, the inner wall of the left side of at least one annular groove is provided with an auxiliary centering concave surface, and the auxiliary centering concave surface is a spherical concave surface which is concentric with the bending centering concave surface or an ellipsoidal concave surface which is concentric with the bending centering concave surface;
the socket pipe body can be inserted into the socket pipe body from the right port of the socket pipe body, a socket centering section, a socket connecting section and a socket matching section are sequentially arranged on the outer wall of the socket pipe body from right to left, the socket matching section is tightly attached to the socket matching section, a plurality of annular bulges meshed with the annular grooves are arranged on the socket connecting section, a bending centering convex surface attached to the bending centering concave surface is arranged on the socket centering section, and an auxiliary centering convex surface attached to the auxiliary centering concave surface is arranged on the outer wall of the left side of at least one annular bulge;
the sealing structure comprises a sealing groove arranged between the socket centering section and a sealing ring arranged in the sealing groove.
In a preferable scheme of the invention, the sealing ring is made of water-swelling materials.
In a preferred scheme of the invention, the sealing ring comprises a rubber sealing ring inner core and an expansion layer wrapped outside the rubber sealing ring inner core, wherein the expansion layer is made of a water-swellable material.
In a preferred embodiment of the present invention, when the concave surface of the bending centering is an ellipsoidal concave surface, an ellipsoid is defined, and the ratio of the minor diameter to the major diameter of the ellipsoid is 0.9-1.
In a preferred embodiment of the present invention, the center P or the center of the ellipsoid of the concave bending centering surface is located on the axis of the socket pipe body.
In a preferred aspect of the present invention, a gap is left between a right outer wall of the annular protrusion and a right inner wall of the annular groove.
In a preferred embodiment of the present invention, the bending centering concave surface is a spherical concave surface, a limiting step is disposed in the socket pipe body, the step surface of the limiting step is a spherical concave surface concentric with the bending centering concave surface, and the left end surface of the socket pipe body is an arc convex surface fitted with the step surface.
In a preferred aspect of the present invention, the tooth shape of the annular protrusion is triangular or trapezoidal.
In a preferred embodiment of the present invention, a socket step is provided on the socket pipe body, and a sealing gasket is provided between the socket step and the right end surface of the socket pipe body.
In a preferred aspect of the invention, the socket body is surrounded by a rigid reinforcing sleeve.
The invention has the beneficial effects that:
firstly, when the bell and spigot of the pipeline is bent due to geological settlement, the matching of the bending centering concave surface and the bending centering convex surface and the matching of the auxiliary centering concave surface and the auxiliary centering convex surface can play a role in determining the bending center, and the bending center is near the spherical center or the ellipsoidal center of the bending centering concave surface; in the process of bending the pipeline bell and spigot, the bending centering concave surface and the bending centering convex surface only can relatively rotate around the spherical center or the ellipsoidal center for sliding for a small distance, the bending centering concave surface and the bending centering convex surface are always kept to be attached tightly, and the depth of a sealing groove arranged between the bell mouth centering section and the spigot centering section is not changed. Therefore, the pipe socket of the present invention can maintain excellent sealing performance even after it is bent, compared to the conventional pipe socket.
Second, adopt and meet water expanding material and seal, when the condition of leaking appears in seal groove department, meet water expanding material can expand, plug up the position of leaking, promote sealing performance.
Thirdly, as the step surface is a spherical concave surface which is concentric with the bending centering concave surface, when the pipeline bell and spigot is bent, the pair of spherical surfaces of the step surface and the left end surface of the spigot pipe body can improve the function of determining the bending center, so that the bending center is near the spherical center point of the bending centering concave surface.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural view showing an exploded state of embodiment 1 of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 1;
FIG. 4 is a schematic structural view of a pipe body for assembling and forming embodiment 1 of the present invention;
fig. 5 is a schematic view of the fitting structure of the socket connection segment and the socket connection segment in embodiment 2 of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "preferred", "less preferred", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "preferred" or "less preferred" may explicitly or implicitly include at least one such feature.
Referring to fig. 1 to 5, an embodiment of the present invention provides a sealing interface structure of a pipe, including: a socket pipe body 1, a socket pipe body 2 which can be inserted into the socket pipe body 1 from the right end opening thereof, and a sealing structure. The inner wall of the socket pipe body 1 is sequentially provided with a socket centering section 11, a socket connecting section 12 and a socket matching section 13 from right to left, an arc-shaped bending centering concave surface 111 is arranged on the socket centering section 11, the bending centering concave surface 111 is a spherical concave surface or an ellipsoidal concave surface, the socket connecting section 12 is provided with a plurality of annular grooves 100, the inner wall of the left side of at least one annular groove 100 is provided with an auxiliary centering concave surface 101, and the auxiliary centering concave surface 101 is a spherical concave surface which is concentric with the bending centering concave surface 111 or an ellipsoidal concave surface which is concentric with the bending centering concave surface 111; the outer wall of the socket pipe body 2 is sequentially provided with a socket centering section 21, a socket connecting section 22 and a socket matching section 23 from right to left, the socket matching section 23 is tightly attached to the socket matching section 13, the socket connecting section 22 is provided with a plurality of annular protrusions 200 engaged with the annular groove 100, the socket centering section 21 is provided with a bending centering convex surface 211 attached to the bending centering concave surface 111, and the outer wall of the left side of at least one annular protrusion 200 is provided with an auxiliary centering convex surface 201 attached to the auxiliary centering concave surface 101; the sealing structure comprises a sealing groove 3 arranged between the socket centering section 11 and the socket centering section 21 and a sealing ring arranged in the sealing groove 3.
The socket pipe body 1 and the socket pipe body 2 are made of PE, PP-R, PVC or HDPE which are soft and have a little elasticity.
When the bending centering concave surface 111 is an ellipsoidal concave surface, an ellipsoid is determined, the ratio of the minor diameter to the major diameter of the ellipsoid is 0.9-1, and the spherical center P or the ellipsoidal center determined by the bending centering concave surface 111 is positioned on the axis of the socket pipe body 1.
When the concave bending and centering surface 111 is a spherical concave surface, the convex bending and centering surface 211 is a spherical convex surface attached to the concave bending and centering surface, and correspondingly, the concave auxiliary centering surface 101 and the convex auxiliary centering surface 201 are also a pair of spherical surfaces matched with each other. When the pipeline bell and spigot is bent due to geological settlement, the matching of the bending centering concave surface 111 and the bending centering convex surface 211 and the matching of the auxiliary centering concave surface 101 and the auxiliary centering convex surface 201 can play a role in determining a bending center, wherein the bending center is near the spherical center P of the bending centering concave surface 111; in the process of bending the pipeline bell and spigot, the bending centering concave surface 111 and the bending centering convex surface 211 only rotate and slide for a small distance relative to each other by taking a spherical center point P as a center, the two are always kept close to each other, and the depth of the sealing groove 3 arranged between the bell mouth centering section 11 and the spigot centering section 21 is not changed. Therefore, the pipe socket of the present invention can maintain excellent sealing performance even after it is bent, compared to the conventional pipe socket.
When the bending centering concave surface 111 is an ellipsoidal concave surface, the bending centering convex surface 211 is an ellipsoidal convex surface attached to the bending centering concave surface, and the ratio of the minor diameter to the major diameter of the determined ellipsoid is 0.9-1, so that the ellipsoid is very close to a sphere, and therefore, when geological settlement occurs, the working principle of the scheme is basically the same as that of the scheme that the bending centering concave surface 111 is a spherical concave surface. When the pipeline bell and spigot is bent due to geological settlement, the bending centering concave surface 111 and the bending centering convex surface 211 can also play a role in determining the bending center, and the bending center is near the center point of an ellipsoid of the bending centering concave surface 111.
The sealing ring is preferably made of a water-swellable material; secondly, the sealing washer includes rubber seal inner core 4 and parcel inflation layer 5 outside rubber seal inner core 4, and inflation layer 5 is made by meeting water swelling material. When the condition of leaking appears in seal groove 3 department, meet water expanding material and can expand, plug up the position of leaking, promote sealing performance.
The socket mating section 13 and the socket mating section 23 are cylindrical or conical flat wall sections, and the socket connecting section 22 and the socket connecting section 12 may be cylindrical sections or tapered sections which gradually decrease from right to left.
Further, a slight gap is left between the right outer wall of the annular protrusion 200 and the right inner wall of the annular groove 100. These gaps can relieve stress when the pipe structure is bent, and avoid cracking caused by excessive stress at the bottom of the annular protrusion 200.
As a further improvement of the present invention, the bending centering concave surface 111 is a spherical concave surface, a limiting step is arranged in the socket pipe body 1, the step surface 400 of the limiting step is a spherical concave surface which is concentric with the bending centering concave surface 111, and the left end surface 25 of the socket pipe body 2 is an arc convex surface which is attached to the step surface 400. When the pipe socket is bent, the pair of spherical surfaces, namely the step surface 400 and the left end surface 25 of the socket pipe body 2, can further improve the function of determining the bending center, so that the bending center is close to the spherical center point of the bending centering concave surface 111.
The tooth shape of the annular protrusion 200 may be triangular, such as in embodiment 1 shown in fig. 1, or trapezoidal, such as in embodiment 2 shown in fig. 5.
In order to further improve the sealing performance of the present invention, the socket step 24 is disposed on the socket pipe body 2, and a sealing gasket 300 is disposed between the socket step 24 and the right end face of the socket pipe body 1.
In order to improve the strength of the socket pipe body 1, a rigid reinforcing sleeve pipe can be wrapped outside the socket pipe body 1, and the reinforcing sleeve pipe is made of metal materials or reinforced concrete.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which can be directly or indirectly applied to other related technical fields without departing from the spirit of the present invention, are intended to be included in the scope of the present invention.
Claims (9)
1. A sealing interface structure for a conduit, comprising:
the inner wall of the bell mouth pipe body (1) is sequentially provided with a bell mouth centering section (11), a bell mouth connecting section (12) and a bell mouth matching section (13) from right to left, an arc-shaped bending centering concave surface (111) is arranged on the bell mouth centering section (11), the bending centering concave surface (111) is a spherical concave surface or an ellipsoidal concave surface, the bell mouth connecting section (12) is provided with a plurality of annular grooves (100), the inner wall of the left side of at least one annular groove (100) is provided with an auxiliary centering concave surface (101), and the auxiliary centering concave surface (101) is a spherical concave surface which is concentric with the bending centering concave surface (111) or an ellipsoidal concave surface which is concentric with the bending centering concave surface (111);
the socket pipe body (2) can be inserted into the socket pipe body from the right end opening of the socket pipe body (1), a socket centering section (21), a socket connecting section (22) and a socket matching section (23) are sequentially arranged on the outer wall of the socket pipe body (2) from right to left, a plurality of annular protrusions (200) meshed with the annular groove (100) are arranged on the socket connecting section (22), the socket centering section (21) is provided with a bending centering convex surface (211) jointed with the bending centering concave surface (111), and an auxiliary centering convex surface (201) jointed with the auxiliary centering concave surface (101) is arranged on the outer wall of the left side of at least one annular protrusion (200);
the sealing structure comprises a sealing groove (3) arranged between the socket centering section (11) and the socket centering section (21) and a sealing ring arranged in the sealing groove (3).
2. The sealing interface structure for a pipe according to claim 1,
the sealing ring is made of a water-swellable material;
or the sealing ring comprises a rubber sealing ring inner core (4) and an expansion layer (5) wrapped outside the rubber sealing ring inner core (4), and the expansion layer (5) is made of a water-swelling material.
3. The sealing interface structure of a pipe according to claim 1, wherein when the concave bending centering surface (111) is an ellipsoidal concave surface, an ellipsoid is defined, and the ratio of the minor diameter to the major diameter of the ellipsoid is 0.9-1.
4. A pipe sealing joint structure according to claim 1, wherein the centre of sphere P or ellipsoid of the said bend centering concavity (111) is located on the axis of the socket pipe body (1).
5. The sealing interface structure for a pipe according to claim 1, wherein a gap is left between the right outer wall of the annular protrusion (200) and the right inner wall of the annular groove (100).
6. The sealing interface structure of a pipeline according to claim 1, wherein the bending centering concave surface (111) is a spherical concave surface, a limiting step is arranged in the socket pipe body (1), the step surface (400) of the limiting step is a spherical concave surface which is concentric with the bending centering concave surface (111), and the left end surface (25) of the socket pipe body (2) is an arc convex surface which is attached to the step surface (400).
7. The sealing interface structure for a pipe according to claim 1, wherein the tooth shape of the annular protrusion (200) is triangular or trapezoidal.
8. The sealing interface structure of a pipeline according to claim 1, wherein a socket step (24) is provided on the socket pipe body (2), and a sealing gasket (300) is provided between the socket step (24) and the right end face of the socket pipe body (1).
9. A pipe sealing interface structure as claimed in claim 1, wherein the socket body (1) is externally wrapped with a rigid reinforcing sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011038378.2A CN112050010A (en) | 2020-09-28 | 2020-09-28 | Sealing interface structure of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011038378.2A CN112050010A (en) | 2020-09-28 | 2020-09-28 | Sealing interface structure of pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112050010A true CN112050010A (en) | 2020-12-08 |
Family
ID=73605352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011038378.2A Pending CN112050010A (en) | 2020-09-28 | 2020-09-28 | Sealing interface structure of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112050010A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2515497Y (en) * | 2001-12-31 | 2002-10-09 | 上海建筑材料集团新材料有限公司 | Special pipeline made of glass fibre reinforced plastic |
| CN101363561A (en) * | 2007-08-06 | 2009-02-11 | 天津万联管道工程有限公司 | Bell annular boss sealing structure of pipe faucet of concrete |
| WO2017071156A1 (en) * | 2015-10-26 | 2017-05-04 | 新兴铸管股份有限公司 | Socket-spigot pipeline interface having fastening structure |
| CN108331989A (en) * | 2018-03-28 | 2018-07-27 | 广东管博管道技术科技有限公司 | A kind of double containment self-locking bell socket |
| CN212537097U (en) * | 2020-09-28 | 2021-02-12 | 广东智慧碧管管道技术科技有限公司 | Sealing interface structure of pipeline |
-
2020
- 2020-09-28 CN CN202011038378.2A patent/CN112050010A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2515497Y (en) * | 2001-12-31 | 2002-10-09 | 上海建筑材料集团新材料有限公司 | Special pipeline made of glass fibre reinforced plastic |
| CN101363561A (en) * | 2007-08-06 | 2009-02-11 | 天津万联管道工程有限公司 | Bell annular boss sealing structure of pipe faucet of concrete |
| WO2017071156A1 (en) * | 2015-10-26 | 2017-05-04 | 新兴铸管股份有限公司 | Socket-spigot pipeline interface having fastening structure |
| CN108331989A (en) * | 2018-03-28 | 2018-07-27 | 广东管博管道技术科技有限公司 | A kind of double containment self-locking bell socket |
| CN212537097U (en) * | 2020-09-28 | 2021-02-12 | 广东智慧碧管管道技术科技有限公司 | Sealing interface structure of pipeline |
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