CN118128965A - A sleeve type composite jacking pipe - Google Patents
A sleeve type composite jacking pipe Download PDFInfo
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- CN118128965A CN118128965A CN202410371612.5A CN202410371612A CN118128965A CN 118128965 A CN118128965 A CN 118128965A CN 202410371612 A CN202410371612 A CN 202410371612A CN 118128965 A CN118128965 A CN 118128965A
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- Prior art keywords
- pipe
- connecting sleeve
- jacking
- pipe body
- tube according
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
本发明公开了一种套筒式复合顶管，属于球墨铸铁管技术领域，包括连接套筒和管体；所述连接套筒的两端设置有承口，两个承口之间内部设置有顶推法兰，所述管体两端设置有插口，所述顶推法兰和由两个承口插入的两根管体的插口相配合；所述顶推法兰与连接套筒整体铸造成型；所述连接套筒两端承口的内壁上设置有密封圈容纳槽，密封圈容纳槽内设置密封圈；所述管体外设置一层混凝土层。本发明改变原有的球墨铸铁离心铸造焊接法兰顶管和带法兰整铸球墨铸铁短顶管结构，优化设计一种连接套筒+双插无法兰组合装配结构，避免整支球墨铸铁管切割制作短顶管造成的管材浪费，实现切割后剩余管材的有效并合理利用，省去插口顶推法兰焊接，降低企业加工成本。
The present invention discloses a sleeve type composite jacking pipe, belonging to the technical field of ductile iron pipes, comprising a connecting sleeve and a pipe body; the two ends of the connecting sleeve are provided with sockets, a jacking flange is provided inside between the two sockets, the two ends of the pipe body are provided with spigots, the jacking flanges and the spigots of the two pipe bodies inserted by the two sockets are matched; the jacking flanges and the connecting sleeve are integrally cast; the inner walls of the sockets at both ends of the connecting sleeve are provided with sealing ring accommodating grooves, and sealing rings are provided in the sealing ring accommodating grooves; a concrete layer is provided outside the pipe body. The present invention changes the original ductile iron centrifugal casting welded flange jacking pipe and the integrally cast ductile iron short jacking pipe with flange structure, optimizes and designs a connecting sleeve + double plug flangeless combined assembly structure, avoids the waste of pipe material caused by cutting the whole ductile iron pipe to make a short jacking pipe, realizes the effective and reasonable use of the remaining pipe material after cutting, saves the welding of the spigot jacking flange, and reduces the processing cost of the enterprise.
Description
Technical Field
The invention relates to the technical field of ductile cast iron pipes, in particular to a sleeve type composite jacking pipe.
Background
The technology of jacking pipe technologies such as large and medium-sized nodular cast iron pipe jacking pipe, flanged integral casting short jacking pipe and plain end integral casting nodular cast iron short jacking pipe in the market at present has technical conditions of batch production and sales application, the technology of the patent is innovation and upgrade of the technology of jacking pipe production, centrifugal casting is adopted, flange pushing is welded through a flange welding technology, flange processing, flange welding and concrete grouting operation are low in efficiency and high in cost, and meanwhile, the welding strength and quality of the flange are unstable; the pipe jacking produced by centrifugal casting is long, is generally 6m in length, has a wall thickness of K9, and is not suitable for pipe jacking construction in a narrow space; the flanged or flat-mouth cast short jacking pipe is adopted, the wall thickness of the pipe body is K12, the weight per meter is heavy, and the production cost and the use cost of users are relatively high.
Disclosure of Invention
The invention aims to solve the technical problems of providing a sleeve type composite jacking pipe, changing the original structure of centrifugally casting and welding flange jacking pipes with spheroidal graphite cast iron and integrally casting spheroidal graphite cast iron short jacking pipes with flanges, optimally designing a connecting sleeve and double-plug flange-free combined assembly structure, avoiding the waste of pipes caused by cutting and manufacturing short jacking pipes of the whole spheroidal graphite cast iron pipe, realizing the effective and reasonable utilization of the residual pipes after cutting, omitting the jack pushing flange welding and reducing the processing cost of enterprises.
In order to solve the technical problems, the invention adopts the following technical scheme:
A sleeve type composite jacking pipe comprises a connecting sleeve and a pipe body; the two ends of the connecting sleeve are provided with bellmouths, a pushing flange is arranged in the space between the two bellmouths, the two ends of the pipe body are provided with sockets, and the pushing flange is matched with the sockets of the two pipe bodies inserted by the two bellmouths; the pushing flange and the connecting sleeve are integrally cast and formed;
The inner walls of bell mouths at two ends of the connecting sleeve are provided with sealing ring accommodating grooves, and sealing rings are arranged in the sealing ring accommodating grooves;
And a concrete layer is arranged outside the pipe body.
The technical scheme of the invention is further improved as follows: the inner diameter of the socket is matched with the inner diameter of the bell mouth.
The technical scheme of the invention is further improved as follows: the difference range between the inner diameter of the pushing flange and the socket is within 2mm.
The technical scheme of the invention is further improved as follows: the external diameter of the connecting sleeve is matched with the external diameter of the concrete layer of the pipe body, and a reinforcing mesh is arranged in the concrete layer of the pipe body.
The technical scheme of the invention is further improved as follows: the thickness of the cement protective layer is 20-100mm.
The technical scheme of the invention is further improved as follows: and an elastic gasket is arranged between the pushing flange and the socket.
The technical scheme of the invention is further improved as follows: the elastic gasket is a wood gasket.
The technical scheme of the invention is further improved as follows: the outer surface of the connecting sleeve is coated with an outer coating, and the thickness of the connecting sleeve is 5-20mm.
The technical scheme of the invention is further improved as follows: and an inner coating is coated on the inner wall of the pipe body.
The technical scheme of the invention is further improved as follows: a gap of 5-10mm is reserved between the socket of the connecting sleeve and the concrete protection layer of the pipe body, a rubber cushion is arranged between the concrete layer and the socket, and the rubber cushion plays a role in blocking muddy water outside the jacking pipe and flexible buffering.
By adopting the technical scheme, the invention has the following technical progress:
according to the invention, through structural design optimization and integral composite assembly of the connecting sleeve and the double-insertion pipe body, waste of pipes caused by cutting and manufacturing short pipe jacking of the whole nodular cast iron pipe is avoided, effective and reasonable utilization of residual pipes after cutting is realized, socket pushing flange welding is omitted, processing cost of enterprises is reduced, pipe jacking with the length of less than 6 meters can be flexibly produced and manufactured through the assembly structure, transportation and installation construction are facilitated, and the design target of low carbon and environment protection is met.
Drawings
FIG. 1 is a schematic view showing compact installation of a novel sleeve type composite push pipe structure;
FIG. 2 is a schematic hollow installation view of a novel sleeve-type composite pipe jacking structure according to the invention;
Wherein, 1, a connecting sleeve, 2, an outer coating, 3, an elastic gasket, 4, a sealing ring, 5, a socket, 6 and a concrete layer, 7, a reinforcing mesh, 8, a pipe body, 9, an inner coating, 10, a socket, 11, a pushing flange, 12 and a rubber pad.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and examples:
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" … …, etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," … … are used 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 defining "first", "second" … … may explicitly or implicitly include at least one such feature. In the description of the present invention, "a number" means at least two, for example, two, three, etc., unless explicitly specified otherwise.
A sleeve type composite jacking pipe comprises a connecting sleeve 1 and a pipe body 8; the two ends of the connecting sleeve 1 are provided with bellmouths 5, a pushing flange 11 is arranged in the space between the two bellmouths 5, two ends of the pipe body 8 are provided with sockets 10, and the pushing flange 11 is matched with the sockets 10 of the two pipe bodies 8 inserted by the two bellmouths 5; the pushing flange 11 and the connecting sleeve 1 are integrally cast and formed;
the inner walls of bell mouths at two ends of the connecting sleeve 1 are provided with sealing ring accommodating grooves, sealing rings 4 are arranged in the sealing ring accommodating grooves, the inner diameter of the pipe body socket 10 is matched with the inner diameter of the connecting sleeve bell mouth 5, the inner diameter of the pushing flange 11 is close to the inner diameter of the socket 10, the outer diameter of the connecting sleeve 1 is matched with the outer diameter of the pipe body concrete layer 6, a reinforcing mesh 7 is arranged in the pipe body concrete layer 6, an elastic gasket 3 is arranged between the pushing flange 11 and the pipe body socket 10, and the elastic gasket is generally a wood gasket;
The outer surface of the connecting sleeve 1 is coated with an outer coating 2, and the inner wall of the pipe body 8 is coated with an inner coating 9;
The outer coating 2 is fiber cement mortar with the thickness of 5-20mm, the inner coating 9 is silicate cement mortar or aluminate cement mortar, the cement protection layer 6 is concrete with the thickness of 20-100mm, and the thickness is increased along with the increase of the pipe diameter DN.
A gap of 5-10mm is reserved between the socket 5 of the connecting sleeve 1 and the concrete protection layer 6 of the pipe body 8, a rubber mat 12 is arranged in the gap between the concrete layer 6 and the socket 5, and the rubber mat 12 plays a role in blocking muddy water and flexible buffering outside the jacking pipe.
In the connecting sleeve 1, the socket 5 has a depth P. As shown in fig. 1, the length of the pushing flange 11 from the pipe body 8 is about 5mm, the effective length L1 of the connecting sleeve 1 is the thickness of the pushing flange 11, generally 20-40mm, and the effective length is omitted here; as shown in fig. 2, the effective length L1 of the connecting sleeve 1 is generally 1000mm, 2000mm or 3000mm, and any length below 3000mm can be flexibly manufactured.
Working principle:
According to the sleeve type composite pipe jacking structure, during production, nodular cast iron is selected as a connecting sleeve and a pipe body, and the brand is as follows: QT420-5, wherein the connecting sleeve is integrally cast and formed by adopting a green short-flow lost foam process, the effective length L1 value of the connecting sleeve can be manufactured within the range of 0-3000mm, the pipe body is manufactured by cutting a centrifugal casting pipe, the wall thickness is generally K9, the length L2 is 0-6000mm, and the residual pipe after cutting can be effectively and reasonably used for manufacturing composite jacking pipes with other lengths. The novel sleeve type composite pipe jacking structure has the recommended length of less than 4000mm and the length of more than 4000mm and can be customized.
When the pipe jacking method is used, during pushing construction operation, the connecting sleeve resists friction and damage of soil and sand to the outer surface of the sleeve through the high-strength and high-wear-resistance fiber cement outer coating, so that the outer wall of the connecting sleeve is well protected, and meanwhile, the corrosion-resistant effect is achieved. The pushing flange connecting sleeve is integrally cast and formed, and has high structural strength and good performance. The pipe body is protected by a concrete protection layer with the thickness of 20-100mm, a reinforcing mesh is arranged in the protection layer, the strength grade of the concrete is not lower than C30, and the abrasion resistance and the damage resistance of the outer surface of the pipe body are improved.
In summary, the invention changes the original structure of centrifugally casting and welding flange jacking pipes with spheroidal graphite cast iron and integrally casting spheroidal graphite cast iron short jacking pipes with flanges, optimally designs a connecting sleeve and double-plug flangeless combined assembly structure, avoids the waste of pipes caused by cutting and manufacturing short jacking pipes with whole spheroidal graphite cast iron pipes, realizes the effective and reasonable utilization of the residual pipes after cutting, omits the jack pushing flange welding, and reduces the processing cost of enterprises.
Claims (10)
1. The utility model provides a telescopic compound push pipe which characterized in that: comprises a connecting sleeve (1) and a pipe body (8); the two ends of the connecting sleeve (1) are provided with bellmouths (5), a pushing flange (11) is arranged inside the connecting sleeve between the two bellmouths (5), two ends of the pipe body (8) are provided with sockets (10), and the pushing flange (11) is matched with the sockets (10) of the two pipe bodies (8) inserted by the two bellmouths (5); the pushing flange (11) and the connecting sleeve (1) are integrally cast;
The inner walls of the bellmouth (5) at two ends of the connecting sleeve (1) are provided with sealing ring accommodating grooves, and sealing rings (4) are arranged in the sealing ring accommodating grooves;
A layer of concrete layer (6) is arranged outside the pipe body (8), and a rubber pad (12) is arranged between the concrete layer (6) and the socket (5).
2. The telescopic composite push tube according to claim 1, wherein: the inner diameter of the socket (10) is matched with the inner diameter of the bell mouth (5).
3. The telescopic composite push tube according to claim 1, wherein: the difference between the inner diameter of the pushing flange (11) and the inner diameter of the socket (10) is within 2 mm.
4. The telescopic composite push tube according to claim 1, wherein: the outer diameter of the connecting sleeve (1) is matched with the outer diameter of a concrete layer (6) of the pipe body (8), and a reinforcing mesh (7) is arranged in the concrete layer (6) of the pipe body.
5. The telescopic composite push tube according to claim 4, wherein: the thickness of the cement protective layer (6) is 20-100mm.
6. The telescopic composite push tube according to claim 1, wherein: an elastic gasket (3) is arranged between the pushing flange (11) and the socket (10).
7. The telescopic composite push tube according to claim 6, wherein: the elastic gasket is a wood gasket.
8. The telescopic composite push tube according to claim 1, wherein: the outer surface of the connecting sleeve (1) is coated with an outer coating (2) with the thickness of 5-20mm.
9. The telescopic composite push tube according to claim 1, wherein: an inner coating (9) is coated on the inner wall of the pipe body (8).
10. The telescopic composite push tube according to claim 1, wherein: a gap of 5-10mm is reserved between the socket (5) of the connecting sleeve (1) and the concrete protection layer (6) of the pipe body (8), a rubber cushion (12) is arranged between the concrete layer (6) and the socket (5), and the rubber cushion (12) plays a role in blocking muddy water outside the jacking pipe and flexible buffering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410371612.5A CN118128965A (en) | 2024-03-29 | 2024-03-29 | A sleeve type composite jacking pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410371612.5A CN118128965A (en) | 2024-03-29 | 2024-03-29 | A sleeve type composite jacking pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118128965A true CN118128965A (en) | 2024-06-04 |
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ID=91233481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410371612.5A Pending CN118128965A (en) | 2024-03-29 | 2024-03-29 | A sleeve type composite jacking pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118128965A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19801019A1 (en) * | 1998-01-14 | 1999-07-15 | Sendenhorst Kunststoffroehren | Sealing push-in connection between two prefabricated pipe sections, especially water drainage pipes |
| CN203927102U (en) * | 2014-06-04 | 2014-11-05 | 上海耀华玻璃钢有限公司 | Polyester concrete Pressure pipe and assembly thereof |
| CN216951970U (en) * | 2021-08-05 | 2022-07-12 | 芜湖新兴铸管有限责任公司 | Pipeline laying structure |
| CN115681625A (en) * | 2022-11-18 | 2023-02-03 | 福建台明铸管科技股份有限公司 | A ductile cast iron pipe jacking component and its production process |
| CN219571050U (en) * | 2023-02-21 | 2023-08-22 | 新兴铸管股份有限公司 | Short jacking pipe structure of spheroidal graphite cast iron |
| CN220416515U (en) * | 2023-07-28 | 2024-01-30 | 芜湖新兴铸管有限责任公司 | Non-pushing flange spheroidal graphite cast iron jacking pipe double-socket connector |
| CN220622956U (en) * | 2023-08-23 | 2024-03-19 | 新兴铸管股份有限公司 | Novel short push pipe structure of flat-mouth integral casting nodular cast iron |
-
2024
- 2024-03-29 CN CN202410371612.5A patent/CN118128965A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19801019A1 (en) * | 1998-01-14 | 1999-07-15 | Sendenhorst Kunststoffroehren | Sealing push-in connection between two prefabricated pipe sections, especially water drainage pipes |
| CN203927102U (en) * | 2014-06-04 | 2014-11-05 | 上海耀华玻璃钢有限公司 | Polyester concrete Pressure pipe and assembly thereof |
| CN216951970U (en) * | 2021-08-05 | 2022-07-12 | 芜湖新兴铸管有限责任公司 | Pipeline laying structure |
| CN115681625A (en) * | 2022-11-18 | 2023-02-03 | 福建台明铸管科技股份有限公司 | A ductile cast iron pipe jacking component and its production process |
| CN219571050U (en) * | 2023-02-21 | 2023-08-22 | 新兴铸管股份有限公司 | Short jacking pipe structure of spheroidal graphite cast iron |
| CN220416515U (en) * | 2023-07-28 | 2024-01-30 | 芜湖新兴铸管有限责任公司 | Non-pushing flange spheroidal graphite cast iron jacking pipe double-socket connector |
| CN220622956U (en) * | 2023-08-23 | 2024-03-19 | 新兴铸管股份有限公司 | Novel short push pipe structure of flat-mouth integral casting nodular cast iron |
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