A multi-layer lined flexible hose for in-situ repair of water supply and drainage pipes

Abstract

This utility model discloses a multi-layer inner-lined flexible hose for in-situ repair of water supply and drainage pipelines. The utility model includes a first hose body, a second hose body, screws, and a compensating sealing assembly. A first connector is fixedly installed at the end of the first hose body, and a groove is formed at the top of the first connector. The second hose body is fixedly installed on top of the first hose body, and a second connector is fixedly installed at the end of the second hose body. The screw passes through a mounting hole and is threaded into a threaded groove. The compensating sealing assembly includes a first fixing ring inserted into the groove, a spring fixedly installed at the top of the first fixing ring, a second fixing ring fixedly installed at the top of the spring, a sealing ring bonded to the top of the second fixing ring, and sealant filled within the sealing ring. This utility model, by incorporating the first connector, second connector, screws, and compensating sealing assembly, significantly reduces obstruction from the connection and fixing structure, and achieves a good sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of in-situ repair technology for drainage pipes, specifically a multi-layer inner-lined flexible hose for in-situ repair of water supply and drainage pipes. Background Technology

[0002] Multi-layer lined flexible hoses for in-situ repair of water supply and drainage pipelines are an upgraded material for trenchless repair technology. By inserting a multi-layer composite flexible hose into the old pipeline, a high-strength lining is formed after curing, achieving pipeline structural reinforcement and seepage prevention. To accommodate drainage pipes of different lengths, multi-layer lined flexible hoses are designed with segmented hoses. However, the fastening structure when connecting segmented hoses separates the hose from the drainage pipe, affecting the curing process and presenting certain shortcomings. Therefore, we propose a multi-layer lined flexible hose for in-situ repair of water supply and drainage pipelines. Utility Model Content

[0003] The present invention aims to solve the problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a multi-layer inner-lined flexible hose for in-situ repair of water supply and drainage pipelines, including a first hose body, a second hose body, screws and a compensating sealing assembly. A first connector is fixedly provided at the end of the first hose body, and a groove is provided at the top of the first connector. The second hose body is fixedly provided at the top of the first hose body, and a second connector is fixedly provided at the end of the second hose body. The screw passes through the mounting hole and is threadedly connected to the threaded groove. The compensating sealing assembly includes a first fixing ring inserted in the groove, a spring fixedly provided at the top of the first fixing ring, a second fixing ring fixedly provided at the top of the spring, a sealing ring bonded to the top of the second fixing ring, and sealant filled in the sealing ring.

[0005] Preferably, the first hose body includes a PVC layer fixedly disposed within the first connector, a resin layer fixedly disposed inside the PVC layer, a glass fiber layer fixedly disposed outside the PVC layer, a polyester fiber tube fixedly disposed outside the glass fiber layer, and a polyurethane coating fixedly disposed outside the polyester fiber tube.

[0006] Preferably, a plurality of spiral stainless steel wires are fixedly disposed inside the glass fiber layer, and the plurality of spiral stainless steel wires are distributed in a circumferential manner.

[0007] Preferably, the outer side of the first connector is provided with a plurality of threaded grooves, and the plurality of threaded grooves are distributed in a circumferential manner.

[0008] Preferably, the second hose body has the same structure as the first hose body.

[0009] Preferably, the outer side of the second connector has a plurality of mounting holes, which are distributed in a circular pattern.

[0010] Preferably, the top end of the sealing ring has an annular groove for filling with sealant.

[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: The first connector can be aligned with the second connector and inserted, while the screw can pass through the mounting hole and be threaded into the threaded groove, thus connecting and fixing the first and second connectors. Since the screw is hidden in the mounting hole of the second connector, the impact on the curing of the first or second hose body and the drainage pipe can be greatly reduced, making it easier to use. At the same time, the compensation sealing component can be placed in the groove, and the spring allows the sealing ring to firmly abut against the second connector, thus supplementing the seal. The sealant can be filled into the sealing ring, and after filling, it can stick to the second connector, further improving the sealing effect, making it easier to use. Then, the several spiral stainless steel wires can increase the ring stiffness, prevent the inner lining from collapsing, and reduce the ellipticity deviation after curing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This utility model Figure 1 A schematic diagram of the structure of the first flexible tube body;

[0014] Figure 3 This utility model Figure 1 A schematic diagram showing the separation of the first hose body and the second hose body;

[0015] Figure 4 This utility model Figure 1 A schematic diagram of the structure of the second hose body;

[0016] Figure 5 This utility model Figure 1 A schematic diagram of the structure of the compensation sealing assembly.

[0017] Figure label:

[0018] 100. First hose body; 101. PVC layer; 102. Resin layer; 103. Fiberglass layer; 104. Spiral stainless steel wire; 105. Polyester fiber tube; 106. Polyurethane coating; 110. First connector; 120. Threaded groove; 130. Groove;

[0019] 200. Second hose body; 210. Second connector; 220. Mounting hole;

[0020] 300. Screws;

[0021] 400. Compensating sealing assembly; 410. First retaining ring; 420. Spring; 430. Second retaining ring; 440. Sealing ring; 450. Sealant. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0023] The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a multi-layer inner-lined flexible hose for in-situ repair of water supply and drainage pipelines.

[0024] Example 1:

[0025] Reference Figure 1-5 This is the first embodiment of the present invention. This embodiment provides a multi-layer inner-lined hose for in-situ repair of water supply and drainage pipelines, including a first hose body 100, a second hose body 200, screws 300 and a compensation sealing component 400.

[0026] Specifically, a first connector 110 is fixedly provided at the end of the first hose body 100. A groove 130 is formed at the top of the first connector 110. The first hose body 100 includes a PVC layer 101 fixedly disposed within the first connector 110, a resin layer 102 fixedly disposed inside the PVC layer 101, a glass fiber layer 103 fixedly disposed outside the PVC layer 101, a polyester fiber tube 105 fixedly disposed outside the glass fiber layer 103, and a polyurethane coating 106 fixedly disposed outside the polyester fiber tube 105. A plurality of threaded grooves 120 are formed on the outer side of the first connector 110, and these threaded grooves 120 are circumferentially distributed. The inner surface of the glass fiber layer 103... The component is fixedly equipped with several spiral stainless steel wires 104, which are distributed circumferentially. In use, the first connector 110 facilitates the connection of the hose, and the groove 130 facilitates the installation of the compensation sealing component 400. Then, several threaded grooves 120 facilitate the connection and fixation of the first connector 110 and the second connector 210 by screws 300. The resin layer 102 can reduce water flow resistance, the PVC layer 101 can prevent groundwater seepage or sewage leakage, the glass fiber layer 103 can provide structural support and withstand internal pressure and soil load, and the polyester fiber tube 105 and polyurethane coating 106 can directly contact the inner wall of the original pipe and adapt to irregular surfaces.

[0027] Specifically, the second hose body 200 is fixedly disposed on the top of the first hose body 100, and a second connector 210 is fixedly disposed at the end of the second hose body 200. The second hose body 200 has the same structure as the first hose body 100. Several mounting holes 220 are opened on the outer side of the second connector 210. The mounting holes 220 are circumferentially distributed. In use, the second hose body 200 can be fixed to the first hose body 100 through the second connector 210, and the mounting holes 220 facilitate the insertion of screws 300 to fix the second hose body 200 and the first hose body 100.

[0028] Specifically, after the screw 300 passes through the mounting hole 220, it is threaded into the threaded groove 120. In use, the first connector 110 and the second connector 210 can be connected by the screw 300 for fixation. At the same time, the screw 300 is hidden in the mounting hole 220, which can greatly reduce the impact on the curing of the first hose body 100 or the second hose body 200 with the drainage pipe, so as to facilitate use.

[0029] Specifically, the compensating sealing assembly 400 includes a first retaining ring 410 inserted into the groove 130, a spring 420 fixedly disposed at the top of the first retaining ring 410, a second retaining ring 430 fixedly disposed at the top of the spring 420, a sealing ring 440 bonded to the top of the second retaining ring 430, and sealant 450 filled in the sealing ring 440. The top of the sealing ring 440 has an annular groove for filling the sealant 450. In use, the spring 420 causes the second retaining ring 430 and the sealing ring 440 to abut against the second connector 210, achieving a sealing effect. At the same time, the sealant 450 can be injected into the annular groove, and then the sealant 450 can adhere to the second connector 210 for sealing.

[0030] The working principle and usage process of this utility model are as follows: In use, first align the compensating sealing component 400 with the groove 130 of the first connector 110 and insert it. Then, inject a certain amount of sealant 450 into the sealing ring 440 of the compensating sealing component 400. Next, align the first connector 110 with the second connector 210 and insert it. During the insertion process, the sealing ring 440 will abut against the second connector 210, and the sealant 450 will stick to the second connector 210, thus sealing it. When inserting, align the mounting hole 220 with the threaded groove 120. After alignment, align the screw 300 with the mounting hole 220 and insert it. After insertion, it will be threaded into the threaded groove 120, thus fixing the first connector 110 and the second connector 210.

[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A multi-layered lining hose for in-situ repair of a sewer pipe, characterized in that, include: The first hose body (100) has a first connector (110) fixedly provided at its end, and the top end of the first connector (110) has a groove (130); The second hose body (200) is fixedly disposed on the top of the first hose body (100), and the end of the second hose body (200) is fixedly disposed with a second connector (210); The screw (300) passes through the mounting hole (220) and is threaded into the threaded groove (120); The compensating sealing assembly (400) includes a first retaining ring (410) inserted into the groove (130), a spring (420) fixedly disposed at the top of the first retaining ring (410), a second retaining ring (430) fixedly disposed at the top of the spring (420), a sealing ring (440) bonded to the top of the second retaining ring (430), and sealant (450) filled in the sealing ring (440).

2. A multi-layered lining tube for in-situ rehabilitation of a water supply or sewer pipeline according to claim 1, characterized in that, The first hose body (100) includes a PVC layer (101) fixedly disposed in the first connector (110), a resin layer (102) fixedly disposed inside the PVC layer (101), a glass fiber layer (103) fixedly disposed outside the PVC layer (101), a polyester fiber tube (105) fixedly disposed outside the glass fiber layer (103), and a polyurethane coating (106) fixedly disposed outside the polyester fiber tube (105).

3. A multi-layered lining tube for in-situ rehabilitation of a water supply or sewer pipeline according to claim 2, wherein, The glass fiber layer (103) has several spiral stainless steel wires (104) fixedly arranged inside, and the spiral stainless steel wires (104) are distributed in a circular pattern.

4. A multi-layered lining tube for in-situ rehabilitation of a water supply or sewer pipeline according to claim 1, wherein, The first connector (110) has a plurality of threaded grooves (120) on its outer side, and the plurality of threaded grooves (120) are distributed in a circular pattern.

5. A multi-layer inner-lined flexible hose for in-situ repair of water supply and drainage pipelines according to claim 1, characterized in that, The second hose body (200) has the same structure as the first hose body (100).

6. A multi-layered lining tube for in-situ rehabilitation of a water supply or sewer pipeline according to claim 1, wherein, The second connector (210) has a plurality of mounting holes (220) on its outer side, and the plurality of mounting holes (220) are distributed in a circular pattern.

7. A multi-layered lining tube for in-situ rehabilitation of a water supply or sewer pipeline according to claim 1, wherein, The top of the sealing ring (440) has an annular groove for filling with sealant (450).

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