HDPE double-wall corrugated pipe with socket type sealing rubber ring

Abstract

The utility model discloses a kind of HDPE double-wall corrugated pipes with socket-and-spigot type sealing rubber ring, relating to corrugated pipe technical field, including corrugated pipe body and sealing assembly, the corrugated pipe body is integrated structure, and corrugated pipe body main part adopts polyethylene material, the sealing assembly is set on the surface of corrugated pipe body, and sealing assembly includes corrugated pipe socket, annular sealing groove, corrugated pipe socket, hard sealing ring, filling sealing groove, receiving fixed groove, splicing fixing ring and sealing ring.The HDPE double-wall corrugated pipe with socket-and-spigot type sealing rubber ring, through sealing assembly, so that the device is connected by elastic sealing ring socket-and-spigot, and sets double sealing mechanism, can effectively improve the sealing of connection, realize interface zero leakage, through protection component, so that the device is through the synergistic effect of four layers of reinforcement structure to greatly improve pipe stiffness, compression resistance, anti-seepage coefficient and breaking elongation, to prolong its service life.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe technology, specifically to an HDPE double-wall corrugated pipe with a socket-type sealing ring. Background Technology

[0002] HDPE double-wall corrugated pipe is a type of pipe made from high-density polyethylene. Its outer wall has annular corrugations to enhance pressure resistance, while the inner wall is smooth to reduce fluid resistance. It combines lightweight and high strength, and is widely used in municipal drainage, agricultural irrigation, and cable protection. Due to its corrosion resistance and ease of construction, it is gradually replacing traditional pipe materials. However, current HDPE double-wall corrugated pipes still have the following shortcomings:

[0003] For example, patent document CN215568588U discloses an HDPE double-wall corrugated pipe. This HDPE double-wall corrugated pipe can effectively improve the structural strength of the reinforcing pipe by setting reinforcing ribs inside the reinforcing pipe. The reinforcing pipe can prevent the pipe body from deforming and improve the structural strength during burial. However, its sealing mechanism is not perfect, and the sealing performance of the connection between the two sets of corrugated pipes is poor, which can easily cause leakage at the joint. Summary of the Invention

[0004] The purpose of this invention is to provide an HDPE double-wall corrugated pipe with a socket-type sealing ring to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an HDPE double-wall corrugated pipe with a socket-type sealing ring, comprising a corrugated pipe body and a sealing assembly. The corrugated pipe body is an integrated structure, and the main body of the corrugated pipe body is made of polyethylene material. The sealing assembly is disposed on the surface of the corrugated pipe body and includes a corrugated pipe inlet, an annular sealing groove, a corrugated pipe socket, a rigid sealing ring, a filling sealing groove, a receiving fixing groove, an insertion fixing ring, and a sealing ring. The corrugated pipe inlet is disposed at the top of the corrugated pipe body, and the corrugated pipe inlet and the corrugated pipe body are a tightly connected integrated structure. An annular sealing groove is formed on the upper surface of the corrugated pipe inlet. A corrugated pipe socket is formed on the inner side of the lower end of the corrugated pipe body, and a rigid sealing ring is installed on the upper surface inside the corrugated pipe socket.

[0006] Furthermore, the rigid sealing ring is made of rigid rubber material, and the rigid sealing ring is engaged with the inner side of the annular sealing groove.

[0007] Furthermore, a filling and sealing groove is provided at the lower end of the inner surface of the corrugated pipe socket, and a receiving and fixing groove is provided on the upper surface of the inner side of the filling and sealing groove.

[0008] Furthermore, a plug-in fixing ring is engaged with the inner side of the receiving fixing groove, and a sealing ring is connected to the lower surface of the plug-in fixing ring.

[0009] Furthermore, the sealing ring and the inner side of the filling sealing groove are interlocked, and the sealing ring is made of silicone.

[0010] Furthermore, the corrugated pipe body is provided with a protective component for reinforcing the pipe body, and the protective component includes a high-density polyethylene protective layer, a honeycomb composite reinforcement layer, a nano-modified anti-seepage layer, and a self-healing elastic lining layer.

[0011] Furthermore, the high-density polyethylene protective layer is disposed inside the side wall of the corrugated pipe body, and a honeycomb composite reinforcement layer is disposed on the inner surface of the high-density polyethylene protective layer.

[0012] Furthermore, the inner surface of the honeycomb composite reinforcement layer is connected to a nano-modified impermeable layer, and the inner surface of the nano-modified impermeable layer is provided with a self-healing elastic liner.

[0013] This utility model provides an HDPE double-wall corrugated pipe with a socket-type sealing ring, which has the following advantages:

[0014] 1. This utility model incorporates a sealing assembly, which includes a bellows inlet, an annular sealing groove, a bellows socket, a rigid sealing ring, a filling sealing groove, a receiving and fixing groove, an insertion fixing ring, and a sealing ring. In use, the sealing ring is filled into the filling sealing groove, and simultaneously fixed by the insertion fixing ring engaging with the inner side of the receiving and fixing groove. The bellows inlet is then inserted into the inner side of the bellows socket, connecting the two sets of bellows bodies. The sealing ring achieves a seal through its elastic compression. Furthermore, the rigid sealing ring on the inner side of the bellows socket engages with the inner side of the annular sealing groove on the surface of the bellows inlet, further improving the sealing and tightness of the connection. Thus, this device, through the elastic sealing ring insertion connection and the double sealing mechanism, effectively improves the sealing performance of the connection, achieving zero leakage at the interface.

[0015] 2. This utility model incorporates a protective component comprising a high-density polyethylene protective layer, a honeycomb composite reinforcement layer, a nano-modified seepage-proof layer, and a self-healing elastic liner. During use, the high-density polyethylene protective layer enhances overall rigidity, effectively resisting soil loads and mechanical impacts. The honeycomb composite reinforcement layer, embedded within the corrugated pipe body, forms a high-strength skeleton through a three-dimensional honeycomb structure combined with a carbon fiber mesh, improving compressive strength. The nano-modified seepage-proof layer, formed by adding graphene to HDPE material, creates a continuous and dense layer that blocks the penetration of corrosive media. The self-healing elastic liner, made of dynamically vulcanized EPDM / PP blend material, automatically fills and repairs micro-cracks in the pipe wall, increasing elongation at break. Thus, the synergistic effect of these four reinforcing layers significantly improves the pipe's rigidity, compressive strength, seepage prevention coefficient, and elongation at break, extending its service life. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an HDPE double-wall corrugated pipe with a socket-type sealing ring according to the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of a sealing assembly for an HDPE double-wall corrugated pipe with a socket-type sealing ring according to the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of a protective component for an HDPE double-wall corrugated pipe with a socket-type sealing ring, according to the present invention.

[0019] In the diagram: 1. Corrugated pipe body; 2. Sealing assembly; 201. Corrugated pipe spigot; 202. Annular sealing groove; 203. Corrugated pipe socket; 204. Rigid sealing ring; 205. Filling sealing groove; 206. Receiver fixing groove; 207. Insertion fixing ring; 208. Sealing ring; 3. Protective assembly; 301. High-density polyethylene protective layer; 302. Honeycomb composite reinforcement layer; 303. Nano-modified seepage-proof layer; 304. Self-healing elastic inner lining layer. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figures 1 to 3As shown, an HDPE double-wall corrugated pipe with a socket-type sealing ring includes a corrugated pipe body 1 and a sealing assembly 2. The corrugated pipe body 1 is an integral structure, and the main body of the corrugated pipe body 1 is made of polyethylene material. The sealing assembly 2 is disposed on the surface of the corrugated pipe body 1, and the sealing assembly 2 includes a corrugated pipe inlet 201, an annular sealing groove 202, a corrugated pipe socket 203, a rigid sealing ring 204, a filling sealing groove 205, a receiving and fixing groove 206, an insertion and fixing ring 207, and a sealing ring 208. The corrugated pipe inlet 201 is disposed at the top of the corrugated pipe body 1, and the corrugated pipe inlet 201 and the corrugated pipe body 1 are an integral structure that is tightly connected. Furthermore, an annular ring is formed on the upper surface of the corrugated pipe inlet 201. The corrugated pipe body 1 has a corrugated pipe socket 203 on the inner side of the lower end of the annular sealing groove 202. A hard sealing ring 204 is installed on the upper inner surface of the corrugated pipe socket 203. The hard sealing ring 204 is made of hard rubber material and is engaged with the inner side of the annular sealing groove 202. A filling sealing groove 205 is provided at the lower end of the inner surface of the corrugated pipe socket 203. A receiving and fixing groove 206 is provided on the upper inner surface of the filling sealing groove 205. An insertion fixing ring 207 is engaged with the inner side of the receiving and fixing groove 206. A sealing ring 208 is connected to the lower surface of the insertion fixing ring 207. The sealing ring 208 is interlocked with the inner side of the filling sealing groove 205 and is made of silicone.

[0022] The specific operation is as follows: When in use, the sealing ring 208 is filled into the filling sealing groove 205. At the same time, the sealing ring 208 is fixed by the snap-fit ​​connection between the insertion fixing ring 207 and the inner side of the receiving fixing groove 206. The bellows inlet 201 is inserted into the inner side of the bellows socket 203 to realize the connection between the two sets of bellows bodies 1. The sealing ring 208 achieves sealing by elastic compression. At the same time, the hard sealing ring 204 on the inner side of the bellows socket 203 is snap-fitted into the inner side of the annular sealing groove 202 on the surface of the bellows inlet 201 to further improve the sealing and tightness of the connection.

[0023] Please refer to Figure 3 The corrugated pipe body 1 is provided with a protective component 3 for reinforcing the pipe body. The protective component 3 includes a high-density polyethylene protective layer 301, a honeycomb composite reinforcement layer 302, a nano-modified seepage-proof layer 303, and a self-healing elastic liner layer 304. The high-density polyethylene protective layer 301 is provided inside the side wall of the corrugated pipe body 1. The honeycomb composite reinforcement layer 302 is provided on the inner surface of the high-density polyethylene protective layer 301. The nano-modified seepage-proof layer 303 is connected to the inner surface of the honeycomb composite reinforcement layer 302. The self-healing elastic liner layer 304 is provided on the inner surface of the nano-modified seepage-proof layer 303.

[0024] The specific operation is as follows: When in use, the high-density polyethylene protective layer 301 can improve the overall rigidity and effectively resist soil load and mechanical impact. The inner side of the corrugated pipe body 1 is embedded with a honeycomb composite reinforcement layer 302. Through the three-dimensional honeycomb structure, combined with carbon fiber mesh, a high-strength skeleton is formed, which improves the compressive strength. The nano-modified seepage-proof layer 303 forms a continuous and dense layer by adding graphene to HDPE material, which can block the penetration of more corrosive media. The self-healing elastic lining layer 304 adopts a dynamically vulcanized EPDM / PP blend material, which automatically fills and repairs when micro-cracks appear in the pipe wall, thereby improving the elongation at break.

[0025] In summary, as Figures 1 to 3 As shown, in use, the HDPE double-wall corrugated pipe with a socket-type sealing ring is first filled into the filling sealing groove 205 by inserting the sealing ring 208 into the filling sealing groove 205. Simultaneously, the sealing ring 208 is fixed by the engaging connection between the insertion fixing ring 207 and the inner side of the receiving fixing groove 206. Then, the corrugated pipe inlet 201 is inserted into the inner side of the corrugated pipe socket 203, thus connecting the two sets of corrugated pipe bodies 1. The sealing ring 208 achieves a seal through its elastic compression. Simultaneously, the rigid sealing ring 204 inside the corrugated pipe socket 203 engages with the inner side of the annular sealing groove 202 on the surface of the corrugated pipe inlet 201, further improving the sealing performance. In terms of sealing and tightness, the high-density polyethylene protective layer 301 enhances the overall rigidity of the device during use, effectively resisting soil loads and mechanical impacts. The inner side of the corrugated pipe body 1 is embedded with a honeycomb composite reinforcement layer 302, which forms a high-strength skeleton through a three-dimensional honeycomb structure combined with a carbon fiber mesh, thereby improving the compressive strength. The nano-modified anti-seepage layer 303 forms a continuous and dense layer through HDPE material with added graphene, which can block the penetration of more corrosive media. The self-healing elastic lining layer 304 uses a dynamically vulcanized EPDM / PP blend material, which automatically fills and repairs when micro-cracks appear in the pipe wall, thereby increasing the elongation at break.

[0026] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A double-walled HDPE corrugated pipe with a socket-type sealing ring, comprising a corrugated pipe body (1) and a sealing assembly (2), characterized in that: The corrugated pipe body (1) is an integrated structure, and the main body of the corrugated pipe body (1) is made of polyethylene material. The sealing component (2) is disposed on the surface of the corrugated pipe body (1), and the sealing component (2) includes a corrugated pipe inlet (201), an annular sealing groove (202), a corrugated pipe socket (203), a hard sealing ring (204), a filling sealing groove (205), a receiving fixing groove (206), an insertion fixing ring (207), and a sealing ring (208). 208), the corrugated pipe socket (201) is located at the top of the corrugated pipe body (1), and the corrugated pipe socket (201) and the corrugated pipe body (1) are an integral structure that is tightly connected. The upper surface of the corrugated pipe socket (201) is provided with an annular sealing groove (202). The lower inner side of the corrugated pipe body (1) is provided with a corrugated pipe socket (203), and a hard sealing ring (204) is installed on the upper surface inside the corrugated pipe socket (203).

2. The HDPE double-wall corrugated pipe with socket-type sealing ring according to claim 1, characterized in that, The hard sealing ring (204) is made of hard rubber material, and the hard sealing ring (204) is engaged with the inner side of the annular sealing groove (202).

3. The HDPE double-wall corrugated pipe with socket-type sealing ring according to claim 1, characterized in that, The lower end of the inner surface of the corrugated pipe socket (203) is provided with a filling and sealing groove (205), and the upper surface of the inner side of the filling and sealing groove (205) is provided with a receiving and fixing groove (206).

4. The HDPE double-wall corrugated pipe with socket-type sealing ring according to claim 1, characterized in that, The receiving and fixing groove (206) is fitted with a plug-in fixing ring (207) on its inner side, and a sealing ring (208) is connected to the lower surface of the plug-in fixing ring (207).

5. The HDPE double-wall corrugated pipe with socket-type sealing ring according to claim 1, characterized in that, The sealing ring (208) fits into the inner side of the filling sealing groove (205), and the sealing ring (208) is made of silicone.

6. The HDPE double-wall corrugated pipe with socket-type sealing ring according to claim 1, characterized in that, The corrugated pipe body (1) is provided with a protective component (3) for strengthening the pipe body, and the protective component (3) includes a high-density polyethylene protective layer (301), a honeycomb composite reinforcement layer (302), a nano-modified anti-seepage layer (303), and a self-healing elastic lining layer (304).

7. The HDPE double-wall corrugated pipe with socket-type sealing ring according to claim 6, characterized in that, The high-density polyethylene protective layer (301) is disposed inside the side wall of the corrugated pipe body (1), and a honeycomb composite reinforcement layer (302) is disposed on the inner surface of the high-density polyethylene protective layer (301).

8. The HDPE double-wall corrugated pipe with socket-type sealing ring according to claim 6, characterized in that, The inner surface of the honeycomb composite reinforcement layer (302) is connected to a nano-modified impermeable layer (303), and the inner surface of the nano-modified impermeable layer (303) is provided with a self-healing elastic liner (304).

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