CN215335113U - Pipeline interface structure beneficial to sealing - Google Patents
Pipeline interface structure beneficial to sealing Download PDFInfo
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- CN215335113U CN215335113U CN202121241280.7U CN202121241280U CN215335113U CN 215335113 U CN215335113 U CN 215335113U CN 202121241280 U CN202121241280 U CN 202121241280U CN 215335113 U CN215335113 U CN 215335113U
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Abstract
The utility model discloses a pipeline interface structure beneficial to sealing, which comprises a socket pipe body and a socket pipe body, wherein the socket pipe body is provided with a socket section, annular teeth are arranged on the outer side wall of the socket section, an annular groove is arranged on the inner side wall of the socket section, an arc-shaped convex surface is arranged on at least one annular tooth, the annular groove is provided with a sealing surface tangent to the arc-shaped convex surface, and the arc-shaped convex surface is tightly attached to the position where the sealing surface is tangent. The utility model has excellent sealing effect and long service life.
Description
Technical Field
The utility model relates to the technical field of pipelines, in particular to a pipeline interface structure beneficial to sealing.
Background
Pipelines are devices for transporting gases, liquids or fluids with solid particles, which are widely used in hydraulic engineering and various industrial devices. The pipeline is usually made of reinforced concrete or other soft materials (such as PE, HDPE and the like), and the connecting part of the pipeline made of reinforced concrete has the defects of no tensile strength, low water-stopping performance, poor corrosion resistance and the like, so the application prospect of the pipeline is lower than that of the pipeline made of soft materials.
For HDPE (high-density polyethylene) pipelines, in a conventional socket type pipeline joint, an annular bulge is arranged on the outer surface of a pipeline socket, an annular groove is arranged on the inner surface of a pipeline bell mouth, and after the socket and the bell mouth are butted, the annular bulge and the annular groove are mutually meshed to connect two pipelines together. In order to reduce the resistance to abutment, a certain clearance is generally left between the annular projection and the annular groove, sealing the water only by means of the O-ring. Under the influence of many factors, the ideal sealing effect cannot be achieved by only sealing through the O-shaped ring.
In order to solve the problem, the utility model with publication number CN112032445A proposes a scheme that a fourth matching surface is arranged on one side of the annular protrusion, a second matching surface attached to the fourth matching surface is arranged on one side of the annular groove, the fourth matching surface is closely attached to the second matching surface, and the axial force applied by the jacking structure compresses the two, thereby keeping the sealing. Such a structure also has the following problems: the in-process of butt joint socket body and bellmouth body, annular tooth can produce slight deformation, however, designs fourth fitting surface and second fitting surface for the structure of closely laminating each other, can lead to the stress that the fourth fitting surface warp to have no department to release, and then leads to the tooth root department of annular tooth to receive axial stress easily and fracture, and life is shorter.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a pipe joint structure with long service life and easy sealing.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
the utility model provides a do benefit to sealed pipeline interface structure, includes socket body and bellmouth body, the socket body socket section has, the bellmouth body socket section has, be provided with annular tooth on the lateral wall of socket section, be provided with the ring channel on the inside wall of bellmouth section, be provided with the arc convex surface on at least one annular tooth, the ring channel be provided with the tangent sealed face of arc convex surface and arc convex surface are hugged closely with the tangent position of sealed face.
In a preferred embodiment of the present invention, the socket section is located at a left end of the socket pipe body, and the socket section is located at a right end of the socket pipe body.
In a preferred embodiment of the present invention, at least one of the annular teeth is a first annular tooth, the arc-shaped convex surface of the first annular tooth is located on the left side of the first annular tooth, the annular groove corresponding to the first annular tooth is a first annular groove, the sealing surface of the first annular groove is located on the left side of the first annular groove, and an axial pressing structure is disposed between the socket pipe body and presses the arc-shaped convex surface of the first annular tooth against the sealing surface of the first annular groove by the axial pressing structure.
In a preferred embodiment of the present invention, at least one of the annular teeth is a pressing tooth, the pressing tooth is in interference fit with the corresponding annular groove so that the arc-shaped convex surface of the first annular tooth is pressed against the sealing surface of the first annular groove, and the pressing tooth and the corresponding annular groove form the axial pressing structure.
In a preferred embodiment of the present invention, at least one of the ring teeth is a second ring tooth, the arc-shaped convex surface of the second ring tooth is located on the right side of the second ring tooth, the ring groove corresponding to the second ring tooth is a second ring groove, the sealing surface of the second ring groove is located on the right side of the second ring groove, an axial pressing structure is provided between the socket pipe body and the socket pipe body, and the arc-shaped convex surface of the second ring tooth is pressed against the sealing surface of the second ring groove by the axial pressing structure.
In a preferred embodiment of the present invention, at least one of the annular teeth is a pressing tooth, the pressing tooth is in interference fit with the corresponding annular groove so that the arc-shaped convex surface of the second annular tooth is pressed against the sealing surface of the second annular groove, and the pressing tooth and the corresponding annular groove form the axial pressing structure.
In a preferred embodiment of the present invention, at least one of the annular teeth is a third annular tooth, the arcuate convex surface of the third annular tooth is located at the top thereof, the annular groove corresponding to the third annular tooth is a third annular groove, and the sealing surface of the third annular groove is located at the bottom thereof.
In a preferred embodiment of the present invention, the sealing surface of the third annular groove is an arc surface and is in interference fit with the arc convex surface of the third annular tooth.
In a preferred embodiment of the present invention, at least one of the annular teeth is a first annular tooth, the arcuate convex surface of the first annular tooth is located on the left side thereof, the annular groove corresponding to the first annular tooth is a first annular groove, and the sealing surface of the first annular groove is located on the left side thereof; at least one annular tooth is a second annular tooth, the arc convex surface of the second annular tooth is positioned on the right side of the second annular tooth, the annular groove corresponding to the second annular tooth is a second annular groove, and the sealing surface of the second annular groove is positioned on the right side of the second annular groove; at least one annular tooth is a third annular tooth, the arc convex surface of the third annular tooth is arranged at the top of the third annular tooth, the annular groove corresponding to the third annular tooth is a third annular groove, and the sealing surface of the third annular groove is positioned at the bottom of the third annular groove.
In a preferable scheme of the utility model, convex teeth which are staggered with the annular groove are formed beside the annular groove, and a chamfer is arranged on the left side of the top of each convex tooth.
In a preferable scheme of the utility model, a water-stopping sealing ring is further arranged between the socket pipe body and the socket pipe body.
The utility model has the beneficial effects that: in the utility model, before the deformation of the annular tooth, the position A on the arc convex surface is a sealing position; if the annular teeth deform during butt joint of the pipeline, the profile of the arc-shaped convex surface is changed, the arc-shaped convex surface can also compensate the deformation, a position B on the arc-shaped convex surface is always attached to the sealing surface, and the position B is an actual sealing position, so that the socket pipe body and the socket pipe body are guaranteed to have excellent sealing performance after butt joint is completed. In addition, the gap between the arc convex surface and the sealing surface can release the stress of the deformation of the annular teeth, and the service life of the socket pipe body is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is example 1 of the structure of part A of FIG. 1;
FIG. 4 is example 2 of the structure of part A of FIG. 1;
FIG. 5 is example 3 of the structure of part A of FIG. 1;
FIG. 6 is example 4 of the structure of part A of FIG. 1;
fig. 7 is a schematic view of the seal 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 7, an embodiment of the present invention provides a pipe joint structure beneficial to sealing, including a socket pipe body 1 and a socket pipe body 2, where the socket pipe body 1 has a socket section 100, the socket pipe body 2 has a socket section 200, an annular tooth 11 is disposed on an outer side wall of the socket section 100, an annular groove 21 is disposed on an inner side wall of the socket section 200, an arc convex surface 101 is disposed on at least one annular tooth 11, the annular groove 21 is provided with a sealing surface 201 tangent to the arc convex surface 101, and the arc convex surface 101 is closely attached to a position where the sealing surface 201 is tangent.
The sealing surface 201 is a curved surface or a flat surface, with a curved surface being preferred. The arcuate convex surface 101 is preferably a spherical arc surface or an ellipsoidal arc surface. The sealing surface 201 and the arc convex surface 101 may be just attached to each other, and a certain interference amount may be designed between the two to enable the two to be tightly attached to each other.
The side of the annular groove 21 is formed with convex teeth 22 staggered with the annular groove 21, in the process of butting the socket pipe body 1 and the socket pipe body 2, the annular teeth 11 need to cross each convex tooth 22 to be clamped into the corresponding annular groove 21, in the process of crossing the convex teeth 22, the annular teeth 11 can generate slight deformation, wherein the deformation of the annular teeth 11 which are firstly inserted into the socket pipe body 2 is particularly serious. Referring to fig. 7, the sealing principle of the present invention is: in fig. 7, the dotted line indicates the arcuate convex surface 101 before the deformation of the ring tooth 11, and the point a is the sealing position before the deformation of the ring tooth 11; if the annular teeth 11 are deformed when the pipe is butted, so that the profile of the arc-shaped convex surface 101 becomes the solid line part in fig. 7, the arc-shaped convex surface 101 can compensate the deformation, so that the sealing position is adjusted to the position B of the arc-shaped convex surface 101, and the excellent sealing performance is ensured after the butting of the socket pipe body 1 and the socket pipe body 2 is completed. In addition, the gap between the arc convex surface 101 and the sealing surface 201 can release the deformation stress of the annular tooth 11, which is beneficial to prolonging the service life of the socket pipe body 1.
Example 1
Fig. 3 shows an embodiment 1 of the utility model, in which the socket section 100 is located at the left end of the socket tube 1 and the socket section 200 is located at the right end of the socket tube 2.
All the annular teeth 11 are first annular teeth 111, the arc-shaped convex surface 101 of the first annular teeth 111 is positioned on the left side of the first annular teeth 111, the annular groove 21 corresponding to the first annular teeth 111 is a first annular groove 211, the sealing surface 201 of the first annular groove 211 is positioned on the left side of the first annular groove 211, and all the sealing surfaces 201 are flat surfaces.
Further, an axial pressing structure is arranged between the socket pipe body 1 and the socket pipe body 2, and the arc-shaped convex surface 101 of the first annular tooth 111 is pressed against the sealing surface 201 of the first annular groove 211 through the axial pressing structure.
In a preferred embodiment of the present invention, at least one of the first annular teeth 111 is a pressing tooth, the pressing tooth is in interference fit with the corresponding annular groove 21, and the pressing tooth and the corresponding annular groove 21 form an axial pressing structure. With such a design, the socket pipe body 1 and the socket pipe body 2 can be positioned so that the arcuate convex surface 101 of the first annular tooth 111 is pressed against the sealing surface 201 of the first annular groove 211 all the time.
In some embodiments of the present invention, the axial pressing structure may also adopt other structural forms, for example, a flange is disposed at the connection between the socket pipe body 2 and the socket pipe body 1, and the socket pipe body 2 and the socket pipe body 1 are axially pressed by the flange, so that the arc-shaped convex surface 101 of the first annular tooth 111 is pressed against the sealing surface 201 of the first annular groove 211 all the time.
Further, a chamfered notch 221 is provided on the left side of the top of the tooth 22. With such a design, it is convenient for the annular teeth 11 to snap into the corresponding annular grooves 21 during the process of butt-joining the socket body 1 and the socket body 2.
A water stop sealing ring 3 is arranged between the socket pipe body 1 and the socket pipe body 2.
In a preferred embodiment, the socket section 100 is a cone with a thin left and a thick right, and the inner hole of the socket section 200 is a cone adapted to the inner hole.
Example 2
Fig. 4 shows embodiment 2 of the present invention, which has a similar structure to embodiment 1, and differs only in the shape of the annular groove 21 and the annular tooth 11.
In this embodiment, the sealing surface 201 of a part of the first annular grooves 211 is a flat surface, and the sealing surface 201 of the other first annular grooves 211 is an arc surface.
The number of the annular teeth 11 and the number of the annular grooves 21 are both multiple, wherein a part of the annular teeth 11 are first annular teeth 111, the arc-shaped convex surface 101 of the first annular teeth 111 is positioned on the left side of the first annular teeth, the annular groove 21 corresponding to the first annular teeth 111 is a first annular groove 211, and the sealing surface 201 of the first annular groove 211 is positioned on the left side of the first annular groove. The remaining ring teeth 11 are the second ring teeth 112, the arcuate convex surface 101 of the second ring teeth 112 is located on the right side thereof, the ring groove 21 corresponding to the second ring teeth 112 is the second ring groove 212, and the sealing surface 201 of the second ring groove 212 is located on the right side thereof.
In this embodiment, at least one of the first annular teeth 111 is a pressing tooth, the pressing tooth is in interference fit with the corresponding annular groove 21, and the pressing tooth and the corresponding annular groove 21 form an axial pressing structure. The axial pressing structure described above can also be used to press the curved convex surface 101 of the second ring tooth 112 against the sealing surface 201 of the second ring groove 212.
Compared with embodiment 1, the present embodiment is characterized in that, in the present embodiment, the left and right arc-shaped convex surfaces 101 are provided, and whether the axial force given by the outside is left or right, some of the arc-shaped convex surfaces 101 can be pressed against the corresponding sealing surface 201, so that the sealing performance is better.
Example 3
Fig. 5 shows embodiment 3 of the present invention, which has a similar structure to embodiment 3 except for the shape of the annular groove 21 and the annular tooth 11.
In the present embodiment, the number of the ring teeth 11 is plural. A part of the annular teeth 11 are first annular teeth 111, the arc-shaped convex surface 101 of the first annular teeth 111 is positioned on the left side of the first annular teeth, the annular groove 21 corresponding to the first annular teeth 111 is a first annular groove 211, and the sealing surface 201 of the first annular groove 211 is positioned on the left side of the first annular groove 211; a part of the annular teeth 11 are second annular teeth 112, the arc-shaped convex surface 101 of the second annular teeth 112 is positioned on the right side thereof, the annular groove 21 corresponding to the second annular teeth 112 is a second annular groove 212, and the sealing surface 201 of the second annular groove 212 is positioned on the right side thereof; the remaining ring tooth 11 is a third ring tooth 113, the arc-shaped convex surface 101 of the third ring tooth 113 is disposed at the top thereof, the ring groove 21 corresponding to the third ring tooth 113 is a third ring groove 213, and the sealing surface 201 of the third ring groove 213 is located at the bottom thereof.
Compared with the embodiment 1, the present embodiment has the characteristics that the arc-shaped convex surfaces 101 facing left and right and positioned at the top of the annular tooth 11 in the present embodiment are provided, and no matter the axial force given by the outside is left or right, some of the arc-shaped convex surfaces 101 can be pressed against the corresponding sealing surfaces 201; meanwhile, the corresponding sealing surface 201 can be pressed tightly through the arc convex surface 101 at the top of the third annular tooth 113, and the sealing performance is better.
Example 4
Fig. 6 shows embodiment 4 of the present invention, which has a similar structure to embodiment 1, and differs only in the shape of the annular groove 21 and the annular tooth 11.
In the present embodiment, all the annular teeth 11 are the third annular teeth 113, the arc-shaped convex surface 101 of the third annular tooth 113 is located at the top thereof, the annular groove 21 corresponding to the third annular tooth 113 is the third annular groove 213, and the sealing surface 201 of the third annular groove 213 is located at the bottom thereof.
Preferably, the sealing surface 201 of the third annular groove 213 is a cambered surface and is in interference fit with the cambered convex surface 101 of the third annular tooth 113.
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 technical scope 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 (10)
1. The utility model provides a do benefit to sealed pipeline interface structure, a serial communication port, including socket body (1) and bellmouth body (2), socket body (1) socket section (100) have, bellmouth body (2) socket section (200) have, be provided with annular tooth (11) on the lateral wall of socket section (100), be provided with ring channel (21) on the inside wall of socket section (200), be provided with arc convex surface (101) on at least one annular tooth (11), ring channel (21) be provided with tangent sealed face (201) of arc convex surface (101) and arc convex surface (101) are hugged closely with the tangent position of sealed face (201).
2. A pipe joint structure facilitating sealing according to claim 1, wherein the spigot section (100) is located at the left end of the spigot pipe body (1), and the socket section (200) is located at the right end of the socket pipe body (2).
3. The pipe joint structure facilitating sealing according to claim 2, wherein at least one annular tooth (11) is a first annular tooth (111), the arc-shaped convex surface (101) of the first annular tooth (111) is located on the left side of the first annular tooth, the annular groove (21) corresponding to the first annular tooth (111) is a first annular groove (211), the sealing surface (201) of the first annular groove (211) is located on the left side of the first annular groove, and an axial pressing structure is arranged between the socket pipe body (1) and the socket pipe body (2) and presses the arc-shaped convex surface (101) of the first annular tooth (111) against the sealing surface (201) of the first annular groove (211) through the axial pressing structure.
4. A pipe joint structure facilitating sealing according to claim 3, wherein at least one of the annular teeth (11) is a pressing tooth, the pressing tooth is in interference fit with the corresponding annular groove (21) so that the arc-shaped convex surface (101) of the first annular tooth (111) is pressed against the sealing surface (201) of the first annular groove (211), and the pressing tooth and the corresponding annular groove (21) form the axial pressing structure.
5. The pipe joint structure facilitating sealing according to claim 2, wherein at least one of the annular teeth (11) is a second annular tooth (112), the arcuate convex surface (101) of the second annular tooth (112) is located on the right side of the second annular tooth, the annular groove (21) corresponding to the second annular tooth (112) is a second annular groove (212), the sealing surface (201) of the second annular groove (212) is located on the right side of the second annular groove, and an axial pressing structure is provided between the socket body (1) and the socket body (2) and presses the arcuate convex surface (101) of the second annular tooth (112) against the sealing surface (201) of the second annular groove (212) through the axial pressing structure.
6. The pipe joint structure facilitating sealing of the claim 5, characterized in that, at least one ring tooth (11) is a pressing tooth, the pressing tooth is in interference fit with the corresponding ring groove (21) to press the arc convex surface (101) of the second ring tooth (112) to the sealing surface (201) of the second ring groove (212), and the pressing tooth and the corresponding ring groove (21) form the axial pressing structure.
7. A pipe interface structure for facilitating sealing according to claim 2, wherein at least one of the annular teeth (11) is a third annular tooth (113), the arc-shaped convex surface (101) of the third annular tooth (113) is located at the top thereof, the annular groove (21) corresponding to the third annular tooth (113) is a third annular groove (213), and the sealing surface (201) of the third annular groove (213) is located at the bottom thereof.
8. A pipe joint structure facilitating sealing according to claim 7, wherein the sealing surface (201) of the third annular groove (213) is cambered and is in interference fit with the cambered convex surface (101) of the third annular tooth (113).
9. The pipe interface structure facilitating sealing according to claim 1, wherein the at least one annular tooth (11) is a first annular tooth (111), the arcuate convex surface (101) of the first annular tooth (111) is located on the left side thereof, the annular groove (21) corresponding to the first annular tooth (111) is a first annular groove (211), and the sealing surface (201) of the first annular groove (211) is located on the left side thereof;
the at least one annular tooth (11) is a second annular tooth (112), the arc-shaped convex surface (101) of the second annular tooth (112) is positioned on the right side of the second annular tooth, the annular groove (21) corresponding to the second annular tooth (112) is a second annular groove (212), and the sealing surface (201) of the second annular groove (212) is positioned on the right side of the second annular groove;
the at least one annular tooth (11) is a third annular tooth (113), the arc-shaped convex surface (101) of the third annular tooth (113) is arranged at the top of the third annular tooth, the annular groove (21) corresponding to the third annular tooth (113) is a third annular groove (213), and the sealing surface (201) of the third annular groove (213) is positioned at the bottom of the third annular groove.
10. A pipe joint structure facilitating sealing according to claim 3, wherein the annular groove (21) is flanked by teeth (22) staggered with respect to the annular groove (21), and the left side of the top of the teeth (22) is provided with a chamfer (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121241280.7U CN215335113U (en) | 2021-06-03 | 2021-06-03 | Pipeline interface structure beneficial to sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121241280.7U CN215335113U (en) | 2021-06-03 | 2021-06-03 | Pipeline interface structure beneficial to sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215335113U true CN215335113U (en) | 2021-12-28 |
Family
ID=79550954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121241280.7U Active CN215335113U (en) | 2021-06-03 | 2021-06-03 | Pipeline interface structure beneficial to sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215335113U (en) |
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2021
- 2021-06-03 CN CN202121241280.7U patent/CN215335113U/en active Active
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