CN113847487A - Double-rubber-ring socket steel pipe structure and method - Google Patents
Double-rubber-ring socket steel pipe structure and method Download PDFInfo
- Publication number
- CN113847487A CN113847487A CN202111197507.7A CN202111197507A CN113847487A CN 113847487 A CN113847487 A CN 113847487A CN 202111197507 A CN202111197507 A CN 202111197507A CN 113847487 A CN113847487 A CN 113847487A
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- steel pipe
- socket
- rubber
- socket steel
- ring
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 98
- 239000010959 steel Substances 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 22
- 238000012360 testing method Methods 0.000 claims description 20
- 230000007704 transition Effects 0.000 claims description 7
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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Classifications
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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
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/03—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
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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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
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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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
Abstract
The invention discloses a double-rubber-ring socket steel pipe structure and a method, belonging to the technical field of pipeline connection, and the technical scheme is as follows: one end of the socket steel pipe is a spigot end, the other end of the socket steel pipe is a socket end, two mounting grooves protruding out of the outer surface of the socket steel pipe are annularly arranged on the pipe wall of the socket end, and the spigot end is a straight pipe section; the socket steel pipes are matched with the female end through the male end and form a straight channel at the inserting position, and a rubber ring is arranged between the outer wall of the male end and the mounting groove of the inner wall of the female end. The invention leads the inner wall of the spigot end of the matched spigot-and-socket steel pipe and the base pipe to form a uniform straight pipe, thereby achieving the purposes of avoiding vortex formation in the pipe and increasing energy consumption caused by the spigot structure.
Description
Technical Field
The invention relates to the technical field of pipeline connection, in particular to a double-rubber-ring socket steel pipe structure and a method.
Background
Because the double-rubber-ring prestressed steel sleeve concrete pipe can be used for carrying out pressure test in the sealing rings formed by the two rubber rings, the socket pipe and the spigot pipe in the pressure test process after pipeline laying, the pipeline sealing performance can be verified, the whole pipeline is not required to be fully filled with water and then is tested, the advantage structure is characterized by solving the requirement of using a large amount of water when pipeline sealing performance verification is carried out after pipeline installation, and the verification difficulty of pipeline sealing performance verification in water-deficient areas after pipeline laying is greatly reduced.
Because the prestressed steel sleeve concrete pipe has short fixed length, large brittleness and inferior corrosion resistance and sanitary performance to the plastic-coated anticorrosive steel pipe, the structure is gradually applied to the plastic-coated anticorrosive steel pipe in recent years, and a new product type of double-rubber-ring socket plastic-coated anticorrosive steel pipe is formed and is used for replacing the double-rubber-ring prestressed steel sleeve concrete pipe. When this two rubber ring advantage structure is by steel bushing concrete pipe rotating frame to the steel pipe, because fixed rubber ring recess on the concrete pipe is different with fixed rubber ring recess processing methods on the steel pipe, the socket end inner wall forms the groove section and forms the wave fluctuation structure with the parent tube inner wall behind the fixed rubber ring recess of steel pipe processing, this structure can cause the pipeline in the medium form the vortex in transportation process, form local resistance, increase pipeline transportation process's pressure drop, cause great power loss, the energy consumption is extravagant.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a double-rubber-ring socket steel pipe structure and a method, so that the inner wall of the socket end of the matched socket steel pipe and a base pipe form a uniform straight pipe, and the aims of avoiding vortex formation in the pipe and energy consumption increase caused by the socket structure are fulfilled.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, an embodiment of the present invention provides a double-rubber-ring socket steel pipe structure, where one end of a socket steel pipe is a spigot end, and the other end of the socket steel pipe is a socket end, two mounting grooves protruding out of the outer surface of the socket steel pipe are annularly arranged on the pipe wall of the socket end, and the spigot end is a straight pipe section; the socket steel pipes are matched with the female end through the male end and form a straight channel at the inserting position, and a rubber ring is arranged between the outer wall of the female end and the mounting groove.
As a further implementation mode, a pressure test hole is formed between the two mounting grooves.
As a further implementation mode, the distance between the center of the pressure test hole and the two mounting grooves is the same.
As a further implementation manner, the cross section of the inner ring of the rubber ring is in a circular arc shape protruding downwards.
As a further implementation, a base pipe is arranged between the socket end and the female end, and the diameter of the socket end is the same as that of the base pipe.
As a further implementation, the female end is a flared structure.
As a further implementation mode, a transition section is formed at the junction of the female end and the base pipe, and the end part of the female end is attached to the inner wall of the transition section to form a straight channel.
As a further implementation mode, the outer wall of the socket steel pipe is provided with an anticorrosive coating.
In a second aspect, an embodiment of the present invention further provides an installation method of a double-rubber-ring socket steel pipe structure, in which two rubber rings are sequentially sleeved in an installation groove of a female end of one of the socket steel pipes, a male end of the other socket steel pipe is inserted into the female end of the socket steel pipe sleeved with the rubber ring, and the end portion of the female end is attached to an inner wall of a transition position of the female end.
As a further implementation mode, before installation, lubricating oil is smeared on the inner ring of the rubber ring and the outer wall of the socket end.
The invention has the following beneficial effects:
(1) according to the invention, the rubber ring is adjusted from the outer wall of the socket end to the inner wall of the female end, so that the original groove design of the socket end is adjusted to a straight pipe structure, and the problems that the medium forms a vortex, forms local resistance and increases pressure drop due to the groove at the socket end in the medium conveying process are avoided, thereby reducing the energy consumption loss caused by pressure drop in the medium conveying process; through adjusting the spigot end into the straight section unanimous with the parent tube, the spigot end is unanimous basically with the anticorrosive effect of parent tube when anticorrosive, only needs socket end special treatment, has improved the anticorrosive mode uniformity of tubular product to a certain extent, has improved anticorrosive effect of product and product life.
(2) The rubber ring is fixedly transferred to the inner wall of the female end, and the female end can be processed by flaring for installing the rubber ring without flaring, so that the whole pipe processing can be optimized from two ends of the original pipe by flaring to only one section for flaring of the female end, the whole external flaring size is greatly reduced, the number of the processed pipe ends is reduced, and the processing efficiency is improved.
(3) According to the invention, the pressure test hole and the rubber rings are arranged at the same pipe end, so that the pressure test hole is always between the two rubber rings, the problems of wrong holes and adjustment of installation are not required to be considered during socket installation, the socket installation difficulty of the pipe is reduced, and the installation efficiency is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1(a) is a side view of a prior art rubber ring;
FIG. 1(b) is a sectional view A-A of FIG. 1 (a);
FIG. 1(c) is a front view of a conventional socket steel pipe;
FIG. 2 is a schematic view of a rubber ring for installing a socket steel pipe;
FIG. 3 is a schematic diagram of the insertion of a conventional socket steel pipe;
FIG. 4(a) is a front view of a socket steel pipe according to one or more embodiments of the present invention;
FIG. 4(b) is a side view of a rubber grommet in accordance with one or more embodiments of the present invention;
FIG. 4(c) is a cross-sectional view B-B of FIG. 4 (B);
FIG. 5 is a schematic illustration of a female steel pipe installation rubber ring according to one or more embodiments of the present disclosure;
FIG. 6 is a schematic illustration of a socket steel pipe insertion according to one or more embodiments of the present disclosure;
the device comprises a first rubber ring, a second rubber ring, a third rubber ring, a fourth rubber ring, a third spigot-and-socket steel pipe, a fourth spigot-and-socket steel pipe, a third spigot-and-socket steel pipe, a first rubber ring, a second spigot-and-socket steel pipe, a pressure test hole, a pressure test groove, a pressure test hole and a mounting groove, wherein the first spigot-and-socket steel pipe, the second spigot-and-socket steel pipe, the third spigot-and-socket steel pipe, the first rubber ring, the second rubber ring, the pressure test hole and the mounting groove are arranged on the first spigot-and socket steel pipe.
Detailed Description
The first embodiment is as follows:
this embodiment provides a two rubber ring socket steel pipe structure, as shown in fig. 4(a) and fig. 5, socket steel pipe one end is the spigot end, and the other end is the female end, and the spigot end sets up to straight tube section, and the female end is the flaring structure, and is equipped with the mounting groove 10 that is used for setting up the rubber ring.
As shown in fig. 1(c) and fig. 2, the socket end of the conventional socket steel pipe is provided with two grooves, the third rubber ring 1 and the fourth rubber ring 2 are mounted on the outer wall of the socket end through the grooves, and the socket end is of a flaring structure. In order to ensure that the water flow is not reduced due to the structure of the pipe, the minimum cross-section diameter of the socket of the conventional socket steel pipe is not less than the diameter of the base pipe, so that the socket end needs to be subjected to outward expansion processing to form a groove; in order to ensure that the socket end can be sleeved on the socket end, the socket end also needs to be subjected to flaring processing, so that the two ends of the structural pipe need to be subjected to flaring processing, and the whole flaring size of the pipe is larger.
The base tube is the base tube between spigot end and the socket end of socket steel pipe, and the base tube of this embodiment is straight section and diameter the same with the spigot end, and the juncture position of socket end and base tube forms conical changeover portion. Two mounting grooves 10 used for mounting the rubber ring are axially arranged at intervals along the socket steel pipe at the female end, and the mounting grooves 10 protrude out of the outer surface of the female end and are arranged along the annular direction.
The rubber ring is fixedly transferred to the inner wall of the female end, the spigot end can be processed without flaring, and only the mounting groove 10 for mounting the rubber ring is flared to the female end, the whole pipe processing can be optimized into only one end by the flaring processing of two ends of the original pipe, and the whole external flaring size is reduced, so that the processing efficiency is improved.
Taking the diameter of phi 325 as an example, the outward expansion size of the embodiment is 67.74% of the outward expansion size of the existing socket steel pipe, the outer diameter of the whole pipe of the embodiment after flaring is 94.83% of the outer diameter of the whole pipe of the existing socket steel pipe structure, the loading space is saved by 5.17%, and the transportation cost of the pipe is greatly reduced.
As shown in fig. 3, when the existing socket steel pipes are matched, for convenience of description, two matched socket steel pipes are defined as a third socket steel pipe 4 and a fourth socket steel pipe 3, the spigot end of the fourth socket steel pipe 3 is inserted into the socket end of the third socket steel pipe 4, and because the spigot end of the fourth socket steel pipe 3 is provided with two grooves, an uneven structure is formed at the spigot end, which may cause the medium in the pipeline to form a vortex and form local resistance in the conveying process, thereby increasing the pressure drop in the pipeline conveying process, and causing large power loss and energy consumption waste.
As shown in fig. 6, the socket steel pipes of the present embodiment are the first socket steel pipe 5 and the second socket steel pipe 8, and the socket end is a straight pipe section, and the socket end of the second socket steel pipe 8 is inserted into the socket end of the first socket steel pipe 5 and can be attached to the end of the flared structure, so that the socket ends of the two second socket steel pipes 8 and the base pipe of the first socket steel pipe 5 form a straight channel, thereby solving the problems that the inner wall of the socket end and the inner wall of the socket end are not straight, and the medium is easy to form eddy flow in the conveying process to form local pressure drop and energy consumption waste, and the like, thereby reducing the energy consumption loss caused by pressure drop in the medium conveying process.
Further, as shown in fig. 3, the rubber rings of the existing socket steel pipe are installed at the spigot end, the pressure test hole 9 is designed at the socket end, and after the pipe is installed in the socket, the pressure test hole 9 can form a sealing ring between the two rubber rings for pressurizing; in order to improve the effective length of the pipe and reduce the socket depth, the design distance of the two rubber rings is usually smaller, and a certain deflection angle exists during the installation of the pipe, so that the pressure test hole 9 is not arranged between the two rubber rings, therefore, higher requirements are required for operators during the installation, or socket and pull adjustment is carried out after the installation, and the pressure test hole 9 is arranged between the two rubber rings, so that the installation efficiency is influenced to a certain degree.
As shown in fig. 4(a) and 5, a pressure test hole 9 is provided between two mounting grooves 10, and the distance between the center of the pressure test hole 9 and the two mounting grooves 10 is the same. This embodiment is through with pressure testing hole 9 with install the rubber ring at same pipe end, make pressure testing hole 9 between two rubber rings all the time, need not to consider wrong hole and carry out the problem adjusted to the installation during the socket joint installation, reduced the tubular product socket joint installation degree of difficulty, promoted the installation effectiveness.
Further, as shown in fig. 1(a) and 1(b), the existing rubber ring has a structure in which a protrusion is formed on an outer wall; as shown in fig. 4(b) and 4(c), the inner surface of the rubber ring of the embodiment protrudes toward the center along the radial direction, the cross section is arc-shaped, the first rubber ring 6 and the second rubber ring 7 are sequentially arranged on the inner wall of the mounting groove 10 of the first socket steel pipe 5, and the rubber ring structure can be adjusted to meet the requirement that the conventional mounting mode of the outer sleeve on the outer wall of the socket end is adjusted to the mounting mode of the inner sleeve on the inner wall of the socket end.
The socket steel pipe outer wall is equipped with the anticorrosive coating, and the equal non-straight section in current socket steel pipe both ends is uneven with middle parent tube when carrying out anticorrosive treatment, and both ends all need carry out special treatment after anticorrosive, and the anticorrosive mode uniformity of tubular product is short of. This embodiment is through adjusting the spigot end design into the straight section unanimous with the parent tube, and the spigot end is unanimous basically with the anticorrosive effect of parent tube when anticorrosive, only needs socket end special treatment, has improved the anticorrosive mode uniformity of tubular product to a certain extent, has improved anticorrosive effect of product and product life.
Example two:
the embodiment provides an installation method of a double-rubber-ring socket steel pipe structure, wherein the socket steel pipe adopts the structure described in the first embodiment, and lubricating oil is coated on the inner ring of a rubber ring and the outer wall of the spigot end of a second socket steel pipe 8 in advance before installation; sequentially sleeving two first rubber rings 6 and two second rubber rings 7 in a mounting groove 10 at the female end of the first socket steel pipe 5, and attaching the outer rings of the first rubber rings 6 and the second rubber rings 7 to the inner surface of the mounting groove 10; inserting the spigot end of the second socket steel pipe 8 into the socket end of the first socket steel pipe 5 until the spigot end of the second socket steel pipe 8 is attached to the inner wall of the transition position of the socket end of the first socket steel pipe 5; the spigot end of the interface is in a uniform straight pipe state with the base pipe after socket installation.
The cross sections of the inner rings of the first rubber ring 6 and the second rubber ring 7 are arc-shaped and protrude downwards, and the downward protruding structures of the first rubber ring 6 and the second rubber ring 7 and the outer surface of the spigot end of the second socket steel pipe 8 form extrusion and close fitting, so that the sealing performance is guaranteed.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A double-rubber-ring socket steel pipe structure is characterized in that one end of a socket steel pipe is a spigot end, the other end of the socket steel pipe is a socket end, two mounting grooves protruding out of the outer surface of the socket steel pipe are annularly arranged on the pipe wall of the socket end, and the spigot end is a straight pipe section; the socket steel pipes are matched with the female end through the male end and form a straight channel at the inserting position, and a rubber ring is arranged between the outer wall of the female end and the mounting groove.
2. The double-rubber-ring socket steel pipe structure of claim 1, wherein a pressure test hole is formed between the two mounting grooves.
3. The double-rubber-ring socket steel pipe structure of claim 2, wherein the distance between the center of the pressure test hole and the two mounting grooves is the same.
4. The double rubber ring socket steel pipe structure of claim 1, wherein the cross section of the inner ring of the rubber ring is a circular arc shape which is convex downward.
5. The double rubber ring socket steel pipe structure of claim 1, wherein a base pipe is arranged between the socket end and the female end, and the diameter of the socket end is the same as that of the base pipe.
6. The double rubber ring bell and spigot steel pipe structure of claim 5, wherein said female end is a flared structure.
7. The double rubber ring socket steel pipe structure of claim 6, wherein the junction of the female end and the base pipe forms a transition section, and the end of the female end is attached to the inner wall of the transition section to form a straight channel.
8. The double rubber ring socket steel pipe structure of claim 1, wherein the outer wall of the socket steel pipe is provided with an anti-corrosion layer.
9. The method for installing a double-rubber-ring female steel pipe structure according to any one of claims 1 to 8, wherein two rubber rings are sequentially inserted into the installation groove of the female end of one of the female steel pipes, and the female end of the other female steel pipe is inserted into the female end of the female steel pipe on which the rubber rings are inserted until the end of the female end is attached to the inner wall of the transition position of the female end.
10. The method for installing a double-rubber-ring socket steel pipe structure according to claim 9, wherein before installation, lubricating oil is applied to the inner ring of the rubber ring and the outer wall of the spigot end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111197507.7A CN113847487A (en) | 2021-10-14 | 2021-10-14 | Double-rubber-ring socket steel pipe structure and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111197507.7A CN113847487A (en) | 2021-10-14 | 2021-10-14 | Double-rubber-ring socket steel pipe structure and method |
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| CN113847487A true CN113847487A (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111197507.7A Pending CN113847487A (en) | 2021-10-14 | 2021-10-14 | Double-rubber-ring socket steel pipe structure and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115854157A (en) * | 2022-11-29 | 2023-03-28 | 山东东宏管业股份有限公司 | Pipe sealing connection structure and processing method |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1545377A (en) * | 1976-01-26 | 1979-05-10 | Cremer & Breuer Keramische | Vitrified clay pipes that are adapted to be joined |
| US6623046B1 (en) * | 1999-04-29 | 2003-09-23 | Aeroquip-Vickers International Gmbh | Tube with a corrugated inner surface and an insertable component |
| CN2628838Y (en) * | 2003-05-21 | 2004-07-28 | 新兴铸管股份有限公司 | Cast tube antislipping joint |
| AU2004291562A1 (en) * | 2003-11-20 | 2005-06-02 | Steel Mains Pty Ltd | Method of corrosion protection at a welded pipe joint and resulting joint |
| CN201715118U (en) * | 2010-07-22 | 2011-01-19 | 湖南振辉管业有限公司 | Steel-wire enhanced socket composite plastic tube |
| CN201858454U (en) * | 2010-10-15 | 2011-06-08 | 蔡桂华 | Splicing pipe connecting pipe fitting with bushing |
| CN106015786A (en) * | 2016-07-13 | 2016-10-12 | 安徽永高塑业发展有限公司 | Socket and spigot structure used for HDPE hollow-wall winding pipes |
| CN206054999U (en) * | 2016-06-12 | 2017-03-29 | 河北四伟化学工业有限公司 | A kind of heavy caliber plastic-coated steel flexibility socket joint fast connector |
| CN109253346A (en) * | 2018-10-17 | 2019-01-22 | 山东禹王管业有限公司 | A kind of bell and spigot anti-corrosive steel tube |
| CN209654788U (en) * | 2019-03-13 | 2019-11-19 | 潍坊天德管业有限公司 | A kind of spigot-and-socket coupling |
| CN209725537U (en) * | 2019-03-28 | 2019-12-03 | 山东东宏管业股份有限公司 | One kind is for connecting heavy caliber plastic-coated steel bell and spigot frame |
| CN210600534U (en) * | 2019-08-30 | 2020-05-22 | 四川与同科技有限公司 | Socket joint formula plastic pipe fitting with sealed detection function |
| CN210920467U (en) * | 2019-08-13 | 2020-07-03 | 江苏复宗管道设备有限公司 | Socket joint type plastic-coated composite steel pipe with OT double-sealing rubber ring |
| CN212584470U (en) * | 2020-06-17 | 2021-02-23 | 周强 | Pressure testing device of sleeve joint with double rubber seals |
| CN213629351U (en) * | 2020-06-29 | 2021-07-06 | 吉林钰翎珑钢管钢构制造有限公司 | Slide-in type flexible socket connecting pipe |
-
2021
- 2021-10-14 CN CN202111197507.7A patent/CN113847487A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1545377A (en) * | 1976-01-26 | 1979-05-10 | Cremer & Breuer Keramische | Vitrified clay pipes that are adapted to be joined |
| US6623046B1 (en) * | 1999-04-29 | 2003-09-23 | Aeroquip-Vickers International Gmbh | Tube with a corrugated inner surface and an insertable component |
| CN2628838Y (en) * | 2003-05-21 | 2004-07-28 | 新兴铸管股份有限公司 | Cast tube antislipping joint |
| AU2004291562A1 (en) * | 2003-11-20 | 2005-06-02 | Steel Mains Pty Ltd | Method of corrosion protection at a welded pipe joint and resulting joint |
| CN201715118U (en) * | 2010-07-22 | 2011-01-19 | 湖南振辉管业有限公司 | Steel-wire enhanced socket composite plastic tube |
| CN201858454U (en) * | 2010-10-15 | 2011-06-08 | 蔡桂华 | Splicing pipe connecting pipe fitting with bushing |
| CN206054999U (en) * | 2016-06-12 | 2017-03-29 | 河北四伟化学工业有限公司 | A kind of heavy caliber plastic-coated steel flexibility socket joint fast connector |
| CN106015786A (en) * | 2016-07-13 | 2016-10-12 | 安徽永高塑业发展有限公司 | Socket and spigot structure used for HDPE hollow-wall winding pipes |
| CN109253346A (en) * | 2018-10-17 | 2019-01-22 | 山东禹王管业有限公司 | A kind of bell and spigot anti-corrosive steel tube |
| CN209654788U (en) * | 2019-03-13 | 2019-11-19 | 潍坊天德管业有限公司 | A kind of spigot-and-socket coupling |
| CN209725537U (en) * | 2019-03-28 | 2019-12-03 | 山东东宏管业股份有限公司 | One kind is for connecting heavy caliber plastic-coated steel bell and spigot frame |
| CN210920467U (en) * | 2019-08-13 | 2020-07-03 | 江苏复宗管道设备有限公司 | Socket joint type plastic-coated composite steel pipe with OT double-sealing rubber ring |
| CN210600534U (en) * | 2019-08-30 | 2020-05-22 | 四川与同科技有限公司 | Socket joint formula plastic pipe fitting with sealed detection function |
| CN212584470U (en) * | 2020-06-17 | 2021-02-23 | 周强 | Pressure testing device of sleeve joint with double rubber seals |
| CN213629351U (en) * | 2020-06-29 | 2021-07-06 | 吉林钰翎珑钢管钢构制造有限公司 | Slide-in type flexible socket connecting pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115854157A (en) * | 2022-11-29 | 2023-03-28 | 山东东宏管业股份有限公司 | Pipe sealing connection structure and processing method |
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Application publication date: 20211228 |