CN212537095U - Sealing bell and spigot structure of pipeline - Google Patents
Sealing bell and spigot structure of pipeline Download PDFInfo
- Publication number
- CN212537095U CN212537095U CN202022165905.8U CN202022165905U CN212537095U CN 212537095 U CN212537095 U CN 212537095U CN 202022165905 U CN202022165905 U CN 202022165905U CN 212537095 U CN212537095 U CN 212537095U
- Authority
- CN
- China
- Prior art keywords
- socket
- centering
- concave surface
- section
- pipe body
- 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.)
- Active
Links
Images
Landscapes
- Joints With Sleeves (AREA)
Abstract
The utility model discloses a sealing bell and spigot structure of a pipeline, which comprises a bell mouth pipe body, a spigot pipe body and a sealing structure, wherein the inner wall of the bell mouth pipe body is provided with a bell mouth centering section and a bell mouth connecting section, the bell mouth centering section is provided with an arc-shaped bending centering concave surface, and the bending centering concave surface is a spherical concave surface or an ellipsoidal concave surface; the outer wall of the socket pipe body is provided with a socket centering section and a socket connecting section, the outer wall of the socket pipe body is provided with the socket connecting section, the socket centering section is provided with a bending centering convex surface, the socket pipe body is provided with a socket step, the socket step is provided with an auxiliary centering concave surface, the auxiliary centering concave surface is concentric with the bending centering concave surface or concentric with an ellipsoid center, the right end surface of the socket pipe body is provided with the auxiliary centering convex surface, and the sealing structure comprises a sealing groove and a sealing ring; the utility model discloses a crooked back takes place for the pipeline socket, and the degree of depth of seal groove does not have the change, still can keep excellent sealing performance.
Description
Technical Field
The utility model relates to a pipeline socket structure, especially a sealed socket structure of pipeline.
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.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a can keep the sealed socket structure of pipeline of excellent sealing performance after taking place the geology and subside.
The utility model discloses a solve its technical problem and the technical scheme who adopts is:
a sealing socket structure of a pipe, comprising:
the inner wall of the bellmouth pipe body is provided with a bellmouth centering section and a bellmouth connecting section, the bellmouth centering section is provided with an arc-shaped bending centering concave surface, and the bending centering concave surface is a spherical concave surface or an ellipsoidal concave surface;
a socket pipe body which can be inserted into the socket pipe body from the right port of the socket pipe body, wherein the outer wall of the socket pipe body is provided with a socket centering section and a socket connecting section, the outer wall of the socket pipe body is provided with a socket connecting section, a connecting structure capable of limiting the socket pipe body to be separated from the socket pipe body is arranged between the socket connecting section and the socket connecting section, the socket centering section is provided with a bending centering convex surface which is jointed with the bending centering concave surface, the socket pipe body is provided with a socket step, the socket step is provided with an auxiliary centering concave surface, 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 right end face of the socket pipe body is provided with an auxiliary centering convex face which is attached to the auxiliary centering concave face;
the sealing structure comprises a sealing groove arranged between the socket centering section and a sealing ring arranged in the sealing groove.
The utility model discloses an in the preferred scheme, still be provided with bellmouth cooperation section on the inner wall of bellmouth body, bellmouth centering section, bellmouth linkage segment, bellmouth cooperation section set gradually from a left side to the right side, still be provided with socket cooperation section on the outer wall of socket body, socket centering section, socket linkage segment, socket cooperation section, socket step set gradually from a left side to the right side.
In a preferable scheme of the utility model, the sealing ring is made of water-swelling material;
in a preferred aspect of the present invention, the sealing ring comprises an inner core of the rubber sealing ring and an expansion layer wrapped around the inner core of the rubber sealing ring, wherein the expansion layer is made of a water-swellable material.
In a preferred embodiment of the present invention, when the concave surface for centering by bending is an ellipsoidal concave surface, an ellipsoid is determined, 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 surface is located on the axis of the socket pipe body.
The utility model discloses an in a preferred scheme, connection structure including set up in a plurality of annular groove of bellmouth linkage segment and set up in a plurality of annular arch of socket linkage segment, each annular arch card is gone into in an annular groove.
In a preferred embodiment of the present invention, the tooth shape of the annular protrusion is a triangle, a trapezoid, or a circular arc protrusion.
In a preferred embodiment of the present invention, the connection structure includes an internal thread disposed in the socket connection section and an external thread disposed in the socket connection section, and the internal thread is engaged with the external thread.
In a preferred embodiment of the present invention, the tooth shape of the external thread is a triangle, a trapezoid, or a circular arc protrusion.
The utility model has the advantages 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, compare with current pipeline socket, the utility model discloses a pipeline socket takes place crooked back, and it still can keep excellent sealing performance.
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.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of the embodiment 1 of the present invention in an exploded state;
FIG. 3 is an enlarged view of a portion A of FIG. 1;
fig. 4 is a schematic structural view for assembling a pipe body according to embodiment 1 of the present invention;
fig. 5 is a schematic view of a fitting structure of the socket connection section and the socket connection section 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 upper, lower, 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 motion situation, etc. in a specific posture (as shown in the drawings), 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 implicit ly 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 socket structure of a pipeline, which includes: 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 bellmouth pipe body 1 is provided with a bellmouth centering section 11 and a bellmouth connecting section 12, the bellmouth centering section 11 is provided with an arc-shaped bending centering concave surface 111, and the bending centering concave surface 111 is a spherical concave surface or an ellipsoidal concave surface; the outer wall of the socket pipe body 2 is provided with a socket centering section 21 and a socket connecting section 22, the outer wall of the socket pipe body 2 is provided with the socket connecting section 22, a connecting structure capable of limiting the socket pipe body 2 to be separated from the socket pipe body 1 is arranged between the socket connecting section 22 and the socket connecting section 12, the socket centering section 21 is provided with a bending centering convex surface 211 attached to a bending centering concave surface 111, the socket pipe body 2 is provided with a socket step, an auxiliary centering concave surface 24 is arranged on the socket step, the auxiliary centering concave surface 24 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, and the right end surface of the socket pipe body 1 is provided with an auxiliary centering convex surface 400 attached to the auxiliary centering concave surface 24; 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, compare with current pipeline socket, the utility model discloses a pipeline socket takes place crooked back, and it still can keep excellent sealing performance.
When the concave bending and centering surface 111 is an ellipsoidal concave surface, the convex bending and centering surface 211 is an ellipsoidal 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 ellipsoidal surfaces matched with each other. Because the ratio of the minor diameter to the major diameter of the ellipsoid determined by the bending centering convex surface 211 is 0.9-1, 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.
Further, still be provided with bellmouth cooperation section 13 on the inner wall of bellmouth body 1, bellmouth centering section 11, bellmouth linkage segment 12, bellmouth cooperation section 13 set gradually from a left side to the right side, still be provided with socket cooperation section 23 on the outer wall of socket body 2, and socket centering section 21, socket linkage segment 22, socket cooperation section 23, socket step set gradually from a left side to the right side, and socket cooperation section 23 closely laminates with bellmouth cooperation section 13.
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.
In some aspects of the present invention, such as embodiment 1 shown in fig. 1 and embodiment 2 shown in fig. 5, the connection structure includes a plurality of annular grooves 100 disposed in the socket connection section 12 and a plurality of annular protrusions 200 disposed in the socket connection section 22, and each annular protrusion 200 is snapped into one annular groove 100. The annular protrusion 200 and the annular groove are in transition fit, that is, the outer wall of the annular protrusion 200 is just attached to the inner wall of the annular groove 100 or a small gap is left between the two. The tooth shape of the annular protrusion 200 is triangular, trapezoidal or circular arc protrusion shape, and the shape of the annular groove 100 is matched with the tooth shape.
In other aspects of the present invention, the connection structure includes an internal thread disposed on the socket connection section 12 and an external thread disposed on the socket connection section 22, and the internal thread 121 is engaged with the external thread. The thread shape of the thread is triangle, trapezoid or arc bulge.
The above is only the preferred embodiment of the present invention, not limiting the patent scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct or indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (9)
1. A sealing socket structure of a pipe, comprising:
the inner wall of the bell mouth pipe body (1) is provided with a bell mouth centering section (11) and a bell mouth connecting section (12), the bell mouth centering section (11) is provided with an arc-shaped bending centering concave surface (111), and the bending centering concave surface (111) is a spherical concave surface or an ellipsoidal concave surface;
the socket pipe body (2) can be inserted into the socket pipe body from the right port of the socket pipe body (1), the outer wall of the socket pipe body (2) is provided with a socket centering section (21) and a socket connecting section (22), the outer wall of the socket pipe body (2) is provided with the socket connecting section (22), a connecting structure capable of limiting the socket pipe body (2) to be separated from the socket pipe body (1) is arranged between the socket connecting section (22) and the socket connecting section (12), the socket centering section (21) is provided with a bending centering convex surface (211) attached to the bending centering concave surface (111), the socket pipe body (2) is provided with a socket step, the socket step is provided with an auxiliary centering concave surface (24), the auxiliary centering concave surface (24) 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), an auxiliary centering convex surface (400) attached to the auxiliary centering concave surface (24) is arranged on the right end surface of the socket pipe body (1);
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 socket structure of a pipeline according to claim 1, wherein a socket matching section (13) is further provided on the inner wall of the socket pipe body (1), the socket centering section (11), the socket connecting section (12) and the socket matching section (13) are sequentially provided from left to right, a socket matching section (23) is further provided on the outer wall of the socket pipe body (2), and the socket centering section (21), the socket connecting section (22), the socket matching section (23) and the socket step are sequentially provided from left to right.
3. The seal socket structure of 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.
4. The sealed socket structure of a pipeline according to claim 1, wherein when the said curved centering concave surface (111) is an ellipsoidal concave surface, an ellipsoid is defined, and the ratio of the minor diameter to major diameter of the ellipsoid is 0.9-1.
5. The sealing socket structure of a pipeline according to claim 1, wherein the centre of sphere P or ellipsoid of the said bending centring concave surface (111) is located on the axis of the socket body (1).
6. The sealing socket structure of a pipe according to claim 1, wherein said connection structure comprises a plurality of annular grooves (100) provided in said socket connection section (12) and a plurality of annular protrusions (200) provided in said socket connection section (22), each annular protrusion (200) being snapped into one of the annular grooves (100).
7. The sealing socket structure of a pipe according to claim 6, wherein the tooth shape of the annular projection (200) is a triangular, trapezoidal, or circular arc projection shape.
8. The sealing socket structure of a pipe according to claim 1, wherein said connection structure comprises an internal thread provided to said socket connection section (12) and an external thread provided to said socket connection section (22), said internal thread (121) being engaged with said external thread.
9. The sealing socket structure of a pipe according to claim 8, wherein the thread shape of the external thread (221) is a triangular shape, a trapezoidal shape, or a circular arc convex shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022165905.8U CN212537095U (en) | 2020-09-28 | 2020-09-28 | Sealing bell and spigot structure of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022165905.8U CN212537095U (en) | 2020-09-28 | 2020-09-28 | Sealing bell and spigot structure of pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212537095U true CN212537095U (en) | 2021-02-12 |
Family
ID=74527238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022165905.8U Active CN212537095U (en) | 2020-09-28 | 2020-09-28 | Sealing bell and spigot structure of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212537095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050006A (en) * | 2020-09-28 | 2020-12-08 | 广东智慧碧管管道技术科技有限公司 | Sealing bell and spigot structure of pipeline |
-
2020
- 2020-09-28 CN CN202022165905.8U patent/CN212537095U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050006A (en) * | 2020-09-28 | 2020-12-08 | 广东智慧碧管管道技术科技有限公司 | Sealing bell and spigot structure of pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212537095U (en) | Sealing bell and spigot structure of pipeline | |
| JP2008298155A (en) | Sealant of pipe coupling and pipe coupling using this sealant | |
| CN212537098U (en) | Sealed pipeline bell and spigot structure | |
| CN212537097U (en) | Sealing interface structure of pipeline | |
| CN112050006A (en) | Sealing bell and spigot structure of pipeline | |
| CN107990078A (en) | Throttle inserting pipe joints | |
| CN112050008A (en) | Sealed pipeline bell and spigot structure | |
| CN112050010A (en) | Sealing interface structure of pipeline | |
| CN214662756U (en) | Flexible socket structure of pipeline | |
| CN214222315U (en) | Composite pipe interface structure and composite pipe adaptable to geological settlement | |
| CN214662757U (en) | Sealing interface structure of composite pipe | |
| CN112032447A (en) | Pipeline socket structure capable of adapting to geological settlement | |
| CN207349666U (en) | Throttle inserting pipe joints | |
| CN212537096U (en) | Bendable pipeline interface structure | |
| CN212745498U (en) | Bendable pipeline socket structure | |
| CN114576450A (en) | Composite pipe interface structure and composite pipe adaptable to geological settlement | |
| CN212745456U (en) | Composite pipe double-socket structure and composite pipe | |
| CN212745455U (en) | Double-seal double-socket structure of composite pipe and composite pipe | |
| JPH0666395A (en) | Universal tube joint | |
| CN210661855U (en) | Spiral muscle inside lining connecting piece of carat pipe | |
| CN212537099U (en) | Pipeline socket structure capable of adapting to geological settlement | |
| CN221097866U (en) | Joint for pipeline connection | |
| CN112050009A (en) | Bendable pipeline socket structure | |
| CN112050001A (en) | Composite pipe double-socket structure and composite pipe | |
| CN112050003A (en) | Double-seal double-socket structure of composite pipe and composite pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |