Self-anchoring connector lining stainless steel pipe
By using a stainless steel pipe lining for the self-anchored interface, combined with T-shaped rubber rings and anti-reverse bolts, the problems of high steel consumption and high construction costs in traditional pipelines are solved. This improves durability and sealing, adapts to high temperature and high pressure environments, and reduces energy consumption and maintenance costs.
Patent Information
- Application Number
- CN202520866593.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-05-06
AI Technical Summary
Traditional water supply and drainage pipes in industries such as pharmaceuticals, chemicals, power, and metallurgy suffer from problems such as large steel consumption, high construction costs, and insufficient durability, making them unable to meet the high requirements of application scenarios.
The system adopts a self-anchored interface with an inner stainless steel pipe. The steel pipe is combined with the inner stainless steel pipe through spiral welding, and T-shaped rubber rings and anti-reverse bolts are used for connection. The outer surface is coated with epoxy resin paint or two-oil-one-cloth epoxy coal tar paint to achieve self-positioning sealing and high corrosion resistance.
It improves the durability and sealing of pipelines, reduces material costs and construction difficulty, ensures zero leakage at joints, adapts to high temperature and high pressure environments, reduces the risk of blockage, increases fluid flow rate, and reduces energy consumption.
Smart Images

Figure CN223938926U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipeline structure technology, specifically a self-anchored interface stainless steel lining pipe. Background Technology
[0002] With the rapid development of my country's economy, the demand for water supply and drainage pipelines suitable for industries such as pharmaceuticals, chemicals, power, and metallurgy is increasing. Traditional water supply and drainage pipelines, such as stainless steel pipes, suffer from problems such as high steel consumption and high construction costs, and cannot meet the high requirements of these industries. Therefore, researching a water supply and drainage pipeline suitable for these industries that features low steel consumption, improved overall pipeline durability, cost savings, and convenient installation is of significant practical importance. Utility Model Content
[0003] The technical solution of this utility model is as follows: a self-anchored interface liner stainless steel pipe, including: a socket, a backstop bolt, multiple steel pipes, a T-shaped rubber ring and a spigot. The two ends of the steel pipe are fixedly connected to the spigot or the socket. The socket and the spigot can match. The socket is provided with a first groove and the spigot is provided with a second groove. The T-shaped rubber ring is provided in the first groove. The backstop bolt passes through the socket and is set in the second groove.
[0004] Furthermore, one end of the steel pipe is fixedly connected to a socket, and the other end of the steel pipe is fixedly connected to a spigot.
[0005] Furthermore, the two ends of the steel pipe are fixedly connected to spigots, and the two ends of the steel pipe are fixedly connected to sockets. The number of steel pipes with fixed spigot connections and the number of steel pipes with fixed socket connections are the same.
[0006] Furthermore, the steel pipe and the socket are integrated into one unit.
[0007] Furthermore, the inner surface of the steel pipe is lined with a layer of inner material.
[0008] Furthermore, an anti-corrosion layer is provided on the outer surface of the steel pipe.
[0009] The beneficial effects of this utility model are as follows:
[0010] It features excellent corrosion and wear resistance, low engineering cost and after-sales maintenance expenses. It adopts a self-anchored T-type rubber ring socket connection method, which has a self-positioning function and good joint sealing, effectively preventing water leakage. At the same time, the structure of welding the socket end to the outer wall of the spigot ensures zero leakage at the interface, long service life, reduced maintenance and replacement costs, and can withstand high temperature, high pressure and strong wear working environment. The smooth inner lining surface does not easily accumulate substances, reducing the possibility of pipeline blockage, effectively improving the flow velocity of fluid in the pipeline and reducing the energy consumption of fluid transportation. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the steel pipe of this utility model.
[0012] Figure 2 for Figure 1 AA section view.
[0013] Figure 3 This is a three-dimensional schematic diagram of the steel cylinder of this utility model.
[0014] In the picture:
[0015] 1. Anti-corrosion layer, 2. Socket, 3. Anti-reverse bolt, 4. Steel pipe, 5. Inner lining, 6. T-type rubber ring, 7. Spiral. Detailed Implementation
[0016] It should be noted that in the description of this utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation.
[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "setting," "installing," "connecting," and "joining" should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; a connection can be a mechanical connection or an electrical connection; a joint can be a direct connection or an indirect connection through an intermediate medium, and can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0018] A self-anchored stainless steel liner pipe includes an anti-corrosion layer 1, a socket 2, a backstop bolt 3, a steel pipe 4, an inner liner 5, a T-shaped rubber ring 6, and a spigot 7.
[0019] It adopts a self-anchored interface connection method; the steel pipe 4 is a spiral welded steel pipe, the inner lining 5 is a stainless steel pipe, and the anti-corrosion layer 1 is epoxy resin paint or two-oil-one-cloth epoxy coal tar pitch paint. The product is mainly used in the pharmaceutical, chemical, power, and metallurgical industries.
[0020] The anti-reverse bolt 3 is an M16 model.
[0021] The process includes: fabricating spiral-welded or straight-seam-welded outer steel pipes; inspecting the weld seams of the steel pipes; processing and welding the socket joints to the outer steel pipes; lining the inner pipe with stainless steel; and applying epoxy resin paint or a two-coat-one-cloth epoxy coal tar pitch coating for external corrosion protection. This structural design significantly extends the service life of the pipeline.
[0022] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in this utility model, and within the spirit and principles of this utility model, should be included within the protection scope of this utility model. Furthermore, all content not described in detail in this specification belongs to the prior art known to those skilled in the art.
[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
Claims
1. A self-anchoring joint inner stainless steel pipe, characterized in that, include: The device includes a socket, a locking bolt, multiple steel pipes, a T-shaped rubber ring, and a spigot. The two ends of the steel pipes are fixedly connected to the spigot or socket. The socket and spigot can match. The socket has a first groove, and the spigot has a second groove. The first groove contains a T-shaped rubber ring, and the locking bolt passes through the socket and is set in the second groove.
2. The stainless steel pipe with a self-anchoring interface according to claim 1, characterized in that, One end of the steel pipe is fixedly connected to the socket, and the other end of the steel pipe is fixedly connected to the spigot.
3. The stainless steel pipe with a self-anchoring interface according to claim 1, characterized in that, The steel pipe is fixedly connected to spigots at both ends and fixedly connected to sockets at both ends. The number of steel pipes with fixed spigot connections and the number of steel pipes with fixed socket connections are the same.
4. A self-anchoring interface inner stainless steel pipe according to claim 2 or 3, characterized in that, The steel pipe and the socket are integrated into one piece.
5. A self-anchoring interface lining stainless steel pipe according to claim 1, characterized in that, The inner surface of the steel pipe is lined with a layer of material.
6. A self-anchoring interface inner stainless steel pipe according to claim 1, characterized in that, The outer surface of the steel pipe is covered with an anti-corrosion layer.