CN212028799U - Axial self-sealing pipe fitting - Google Patents
Axial self-sealing pipe fitting Download PDFInfo
- Publication number
- CN212028799U CN212028799U CN202020436772.0U CN202020436772U CN212028799U CN 212028799 U CN212028799 U CN 212028799U CN 202020436772 U CN202020436772 U CN 202020436772U CN 212028799 U CN212028799 U CN 212028799U
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- Prior art keywords
- thread
- annular
- internal thread
- pipe fitting
- joints
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- 238000007789 sealing Methods 0.000 title claims abstract description 20
- 241000283216 Phocidae Species 0.000 claims description 5
- 239000006163 transport media Substances 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an axial self-sealing pipe fitting, which comprises an inner thread body and at least two inner and outer thread joints; the inner thread body is provided with at least two connecting holes which are mutually communicated, and the inner wall of each group of connecting holes is sequentially provided with an internal thread and an annular bulge from outside to inside; the end part of the first end of the inner and outer screw joints is provided with an annular extension part, and the outer diameter of the annular extension part is smaller than that of the first end of the inner and outer screw joints; the first end of the inner and outer screw joints is in threaded connection with the internal thread, and the outer circumferential surface of the annular extension part is in interference fit with the inner wall of the annular bulge; the external screw thread of the joint of interior external screw and internal thread of internal thread body is connected and is locked, forms first seal structure, and the annular protruding interference fit in extension and the jack forms second seal structure simultaneously, through the firm sealing connection of this pipe fitting between the pipeline, reduces the risk that the transport medium revealed.
Description
Technical Field
The utility model relates to a pipe fitting technical field particularly, relates to an axial self sealss pipe fitting.
Background
The traditional stainless steel pipeline is mostly directly connected by adopting a traditional thread structure, the reliability is relatively weak, and the following problems exist: the locking force of the thread is reduced after stress release in long-term use, the thread is easy to loosen when the thread is vibrated in the use process, the locking force of the thread to the sealing element is weakened due to the above phenomena, and then the medium conveyed in the pipeline is easy to leak.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an axial self sealss pipe fitting for the sealing connection of pipeline improves the reliability of pipe connection.
The embodiment of the utility model is realized like this:
an axial self-sealing pipe fitting comprises an inner thread body and at least two inner and outer thread joints;
the inner thread body is provided with at least two connecting holes which are mutually communicated, and the inner wall of each group of connecting holes is sequentially provided with an internal thread and an annular bulge from outside to inside;
the end part of the first end of the inner and outer screw joints is provided with an annular extension part, and the outer diameter of the annular extension part is smaller than that of the first end of the inner and outer screw joints;
the first end of the inner and outer screw joint is in threaded connection with the internal thread, and the outer circumferential surface of the annular extension part is in interference fit with the inner wall of the annular protrusion.
Further, the inner filament body is of a multi-channel tube structure.
Further, the outer diameter of the inner thread body is equal to the outer diameter of the second end of the inner and outer thread joints.
The utility model has the advantages that:
the utility model discloses a pipe fitting includes that two at least inside and outside silk connect and a set of internal thread body, the second end threaded connection that every group pipeline passes through screw thread and inside and outside silk joint, be equipped with the external screw thread on the outer periphery of the first end of joint of inside and outside silk and be equipped with cyclic annular extension including the first end tip of joint of outside silk, when the first end of joint of inside and outside silk extends to the internal thread body in the spliced eye, the external screw thread of the joint of inside and outside silk locks with the internal thread body's female connection, form first seal structure, the protruding interference fit of annular in extension and the spliced eye forms second seal structure simultaneously, through the firm sealing connection of this pipe fitting between the pipeline, reduce the risk that the transport medium revealed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the self-sealing pipe structure of the present invention;
icon: 1-internal thread body, 100-connecting hole, 101-internal thread, 102-annular bulge, 2-internal and external thread joint, 200-external thread, 201-annular extension part and 3-self-sealing section.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
As shown in fig. 1, an axial self-sealing pipe fitting for sealing connection of stainless steel pipes includes an internal thread 1 and at least two sets of internal and external thread joints 2, in this embodiment, the internal and external thread joints 2 are two sets and are in a straight structure.
The internal thread body 1 is provided with the hole 100 that connects of two sets of intercommunications, and a set of hole 100 that connects has respectively been seted up to the first end of internal thread body 1 and second end promptly, and two sets of holes 100 switch on and form a set of through-hole, and every group connects and is equipped with internal thread 101 and annular arch 102 from the terminal surface extroversion in proper order on the hole 100 inner wall, and in this implementation, two sets of annular arch 102 integrated into one piece, this annular arch 102 is located the middle part of through-hole.
The outer periphery of the first end of the inner and outer screw joint 2 is provided with an external thread 200, the end part of the first end is provided with an annular extension part 201, the outer diameter of the annular extension part 201 is smaller than that of the first end of the inner and outer screw joint 2, the second end of the inner and outer screw joint 2 is provided with a second internal thread, and the second internal thread is connected with a pipeline.
The first end of the inner and outer screw joints 2 extends into the connecting hole 100, and the external threads 200 on the inner and outer screw joints 2 are in threaded connection with the internal threads 101 of the inner screw body; the annular extension 201 extends into the annular protrusion 102, and the outer circumferential surface thereof forms a self-sealing section 3 in interference fit with the inner wall of the annular protrusion 102.
The outer diameter of the inner thread body 1 is equal to the outer diameter of the second end of the inner thread connector and the outer thread connector 2, so that the axial self-sealing pipe fitting is of an integral structure with the same thickness.
In addition, in another embodiment, the inner thread 1 may be a multi-way pipe structure, such as a three-way pipe, a four-way pipe, a bend, etc., that is, at least two connection holes 100 are formed on the inner thread 1, the at least two connection holes 100 are internally communicated with each other, and each group of connection holes 100 is connected with a group of inner and outer thread joints 2, so that the axial self-sealing pipe fitting can be connected with more pipes.
Form first sealed through threaded connection, axial direction's self sealss section 3 forms and forms that the second is sealed, has effectively solved traditional helicitic texture in case locking force descends the problem that easily causes revealing, and pipe-line system is more stable, and above-mentioned axial self sealss pipe fitting installation is simple, swift high-efficient, and safe and reliable, long service life.
At present, the stainless steel pipeline is widely popularized in the country on direct drinking water, building water supply and indoor gas, the axial self-sealing pipe fitting has a good sealing effect on the stainless steel pipeline, the axial self-sealing pipe fitting is suitable for transportation of liquefied gas, leakage is prevented, and great economic and social benefits are achieved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. An axial self sealss pipe fitting which characterized in that: comprises an internal thread body (1) and at least two internal and external thread joints (2);
the inner thread body (1) is provided with at least two connecting holes (100) which are mutually communicated, and the inner wall of each group of connecting holes (100) is sequentially provided with an internal thread (101) and an annular bulge (102) from outside to inside;
an annular extension part (201) is arranged at the first end part of the inner and outer wire joint (2);
the first end of the inner and outer screw joint (2) is in threaded connection with the internal thread (101), and the outer circumferential surface of the annular extension part (201) is in interference fit with the inner wall of the annular bulge (102).
2. The axial self-sealing tubing of claim 1, wherein: the inner thread body (1) is any one of straight-through, three-way, four-way and elbow structures.
3. The axial self-sealing tubing of claim 1, wherein: the outer diameter of the inner thread body (1) is equal to the outer diameter of the second end of the inner and outer thread joint (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020436772.0U CN212028799U (en) | 2020-03-30 | 2020-03-30 | Axial self-sealing pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020436772.0U CN212028799U (en) | 2020-03-30 | 2020-03-30 | Axial self-sealing pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212028799U true CN212028799U (en) | 2020-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020436772.0U Active CN212028799U (en) | 2020-03-30 | 2020-03-30 | Axial self-sealing pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212028799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811211A (en) * | 2022-05-11 | 2022-07-29 | 无锡化工装备股份有限公司 | Inner extension pipe assembly of vertical reactor and installation method thereof |
| CN114811211B (en) * | 2022-05-11 | 2024-05-03 | 无锡化工装备股份有限公司 | Inner extension pipe assembly of vertical reactor and installation method thereof |
-
2020
- 2020-03-30 CN CN202020436772.0U patent/CN212028799U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811211A (en) * | 2022-05-11 | 2022-07-29 | 无锡化工装备股份有限公司 | Inner extension pipe assembly of vertical reactor and installation method thereof |
| CN114811211B (en) * | 2022-05-11 | 2024-05-03 | 无锡化工装备股份有限公司 | Inner extension pipe assembly of vertical reactor and installation method thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 611230 north section of Hongye Road, Chongzhou Economic Development Zone, Chengdu, Sichuan Patentee after: Kangtai Plastic Technology Co.,Ltd. Address before: 611230 north section of Hongye Road, Chongzhou Economic Development Zone, Chengdu, Sichuan Patentee before: Kangtai Plastic Technology Group Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |