Non-excavation sewage pipe network repairing structure

Abstract

The utility model belongs to the technical field of pipeline repairing, and particularly relates to a trenchless sewage pipe network repairing structure which comprises a rubber sealing piece, two annular supporting structures are installed in the rubber sealing piece, the outer diameter of each annular supporting structure is adjustable, each annular supporting structure comprises an arc-shaped supporting plate, and the two ends of each arc-shaped supporting plate are the first end and the second end respectively. Two edge strips are fixedly connected to the first end of the arc-shaped supporting plate, a gap groove is formed between the two edge strips, a middle plate is fixedly connected to the second end of the arc-shaped supporting plate and can slide into the gap groove, guide grooves are formed in the sides, close to each other, of the two edge strips, and guide strips are fixedly connected to the two sides of the middle plate. When the annular supporting structure is installed, a certain gap can be generated between the outer diameter of the annular supporting structure and the inner diameter of the rubber sealing piece, and therefore the annular supporting structure can be simply installed in the rubber sealing piece to position the rubber sealing piece.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline repair, and specifically relates to a non-excavation sewage pipe network repair structure. Background Art

[0002] Traditional sewage pipe network maintenance methods usually involve excavating pipes and repairing or replacing them. This method is not only time-consuming and labor-intensive, but may also cause unnecessary interference with the surrounding environment and traffic. Therefore, finding a trenchless sewage pipe network repair structure has become an urgent problem to be solved.

[0003] Currently, a common trenchless pipeline repair technology involves the use of pipe plugs. These plugs typically consist of a rubber seal installed inside the pipeline to seal the damaged area, and a support structure installed inside the rubber seal to position the rubber seal.

[0004] However, existing technologies present some challenges when installing the annular support structure. Specifically, since there is almost no gap between the outer diameter of the annular support structure and the inner diameter of the rubber seal, a large amount of force needs to be applied during the installation process to ensure that the annular support structure is correctly positioned inside the rubber seal, resulting in greater difficulty in installing the annular support structure into the rubber seal. Utility Model Content

[0005] The purpose of this utility model is to provide a trenchless sewage pipe network repair structure, which can create a certain gap between the outer diameter of the annular support structure and the inner diameter of the rubber seal when installing the annular support structure, so that the annular support structure can be installed inside the rubber seal to position the rubber seal more simply.

[0006] The technical solutions adopted in this application are as follows:

[0007] A trenchless sewage pipe network repair structure comprises a rubber seal. Two annular support structures are installed inside the rubber seal. The outer diameters of the annular support structures are adjustable.

[0008] Furthermore, the annular support structure includes an arc-shaped support plate, the two ends of the arc-shaped support plate are respectively a first end and a second end, the first end of the arc-shaped support plate is fixedly connected to two side strips, a gap groove is formed between the two side strips, and the second end of the arc-shaped support plate is fixedly connected to an intermediate plate, and the intermediate plate can slide into the inside of the gap groove.

[0009] Furthermore, a guide groove is provided on one side of the two side strips close to each other, and a guide strip is fixedly connected to both sides of the middle plate, and the two guide strips are slidably connected to the inside of the two guide grooves respectively.

[0010] Furthermore, a small bracket is fixedly connected to the two side strips at positions away from the first end, and a locking screw that can be abutted against the middle plate is threadedly connected to the small bracket.

[0011] Furthermore, a fade-proof groove opposite to the locking screw is opened on the inner side of the middle plate, and the depth of the fade-proof groove gradually increases from the end close to the second end to the end far away from the second end.

[0012] Furthermore, annular positioning grooves are provided on the inner wall of the rubber seal near both ends, and the annular supporting structure is installed inside the annular positioning grooves.

[0013] The technical effects achieved by this utility model are:

[0014] This practical trenchless sewage pipe network repair structure is provided with an annular support structure with an adjustable outer diameter, which can create a certain gap between the outer diameter of the annular support structure and the inner diameter of the rubber seal when the annular support structure is installed, thereby relatively simply installing the annular support structure inside the rubber seal to position the rubber seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of this utility model;

[0016] Figure 2 It is a schematic diagram of the cutaway structure of this utility model;

[0017] Figure 3 It is a structural diagram of the practical annular support structure;

[0018] Figure 4 This is a practical Figure 3 A partial enlarged view of point A in the middle.

[0019] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0020] 1. Sewage pipe; 2. Rubber seal; 3. Annular support structure; 4. Annular positioning groove; 5. Arc support plate; 6. Edge strip; 7. Clearance groove; 8. Middle plate; 9. Small bracket; 10. Locking screw; 11. Anti-fading groove; 12. Guide groove; 13. Guide strip. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of this utility more clear, the utility is described in detail below with reference to the embodiments. It should be understood that the following text is only used to describe one or several specific implementation methods of this utility and does not strictly limit the scope of protection specifically requested by this utility.

[0022] like Figure 1-2As shown, a trenchless sewage pipe network repair structure includes a rubber seal 2, which is installed inside a sewage pipe 1, and the inner wall of the sewage pipe 1 and the outer wall of the rubber seal 2 are tightly abutted, thereby sealing and repairing the damaged part of the sewage pipe 1;

[0023] In order to position the rubber seal 2 , two annular support structures 3 are installed inside the rubber seal 2 , and the annular support structures 3 apply thrust to the rubber seal 2 so that the rubber seal 2 can be more tightly pressed against the sewage pipe 1 .

[0024] The core of this technical solution is that the outer diameter of the annular support structure 3 is adjustable. When the annular support structure 3 is installed, the outer diameter of the annular support structure 3 is reduced so that the outer diameter of the annular support structure 3 is smaller than the inner diameter of the rubber seal 2. The annular support structure 3 can be installed inside the rubber seal 2 more simply, and then the outer diameter of the annular support structure 3 is increased so that the annular support structure 3 and the rubber seal 2 are offset against each other. In this way, the annular support structure 3 can be installed inside the rubber seal 2 more simply to position the rubber seal 2.

[0025] like Figure 2-3 As shown, the annular support structure 3 includes an arc-shaped support plate 5, the two ends of the arc-shaped support plate 5 are respectively a first end and a second end, the first end of the arc-shaped support plate 5 is fixedly connected to two side strips 6, a gap groove 7 is formed between the two side strips 6, the second end of the arc-shaped support plate 5 is fixedly connected to an intermediate plate 8, and the intermediate plate 8 can slide into the inside of the gap groove 7. At this time, by adjusting the position of the intermediate plate 8 inside the gap groove 7, the outer diameter of the annular support structure 3 can be adjusted. When the distance between the end of the intermediate plate 8 and the arc-shaped support plate 5 is reduced, the outer diameter of the annular support structure 3 is reduced. When the distance between the end of the intermediate plate 8 and the arc-shaped support plate 5 is increased, the outer diameter of the annular support structure 3 is increased.

[0026] Here, the arc-shaped support plate 5, the side strip 6 and the middle plate 8 are all made of elastically bendable materials, such as spring steel. Due to its elasticity, when the middle plate 8 is not subjected to external force, the arc-shaped support plate 5 will automatically increase its outer diameter under the action of elasticity.

[0027] like Figure 3-4 As shown, in order to make the bending of the middle plate 8 consistent with the side strip 6 and reduce the interference between the middle plate 8 and the inner wall of the rubber seal 2 when the middle plate 8 moves, a guide groove 12 is provided on the side where the two side strips 6 are close to each other, and a guide strip 13 is fixedly connected to both sides of the middle plate 8. The two guide strips 13 are respectively slidably connected to the inside of the two guide grooves 12. The guide strips 13 and the guide grooves 12 can reduce the deviation of the side strip 6 and the middle plate 8.

[0028] In addition, a small bracket 9 is fixedly connected to the two side strips 6 at a position away from the first end. A locking screw 10 is threadedly connected to the small bracket 9 and can be abutted against the middle plate 8. When the locking screw 10 and the middle plate 8 abut against each other, the outer diameter of the annular support structure 3 can be locked.

[0029] In addition, a fade-proof groove 11 opposite to the locking screw 10 is provided on the inner side of the middle plate 8, and the depth of the fade-proof groove 11 gradually increases from the end close to the second end to the end away from the second end. At this time, when the locking screw 10 and the inner wall of the fade-proof groove 11 are abutted against each other, the locking screw 10 can reduce the displacement of the middle plate 8 toward the first end, thereby reducing the outer diameter of the annular support structure 3.

[0030] At the same time, if Figure 2 As shown, annular positioning grooves 4 are provided on the inner wall of the rubber seal 2 near both ends, and the annular support structure 3 is installed inside the annular positioning groove 4. In order to facilitate the installation of the annular support structure 3, the annular positioning groove 4 in the prior art is usually opened on one side facing the end of the rubber seal 2. This opening makes the annular support structure 3 easy to fall off during use. Accordingly, in the present technical solution, since the outer diameter of the annular support structure 3 is adjustable, the annular support structure 3 can be installed into the annular positioning groove 4 with only one side open, thereby reducing the falling-off phenomenon of the annular support structure 3.

[0031] The working principle of this utility model is: the rubber seal 2 is installed inside the sewage pipe 1 so that the rubber seal 2 is opposite to the damaged part of the sewage pipe 1, and then the position of the middle plate 8 inside the gap groove 7 is adjusted to reduce the outer diameter of the annular support structure 3. When the outer diameter of the annular support structure 3 is smaller than the inner diameter of the rubber seal 2, the annular support structure 3 can be installed inside the rubber seal 2 relatively simply, and then the outer diameter of the annular support structure 3 can be increased to position the rubber seal 2.

[0032] In summary, this technical solution, by providing an annular support structure 3 with an adjustable outer diameter, can create a certain gap between the outer diameter of the annular support structure 3 and the inner diameter of the rubber seal 2 when the annular support structure 3 is installed, thereby making it relatively simple to install the annular support structure 3 inside the rubber seal 2 to position the rubber seal 2.

[0033] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this application shall be implemented in accordance with conventional means in the art unless otherwise specified or limited.

Claims

1. A trenchless sewage pipe network repair structure, characterized by: It comprises a rubber seal (2), two annular support structures (3) are installed inside the rubber seal (2), and the outer diameter of the annular support structure (3) is adjustable; The annular support structure (3) comprises an arc-shaped support plate (5), the two ends of the arc-shaped support plate (5) being respectively a first end and a second end, the first end of the arc-shaped support plate (5) being fixedly connected to two side bars (6), a gap groove (7) being formed between the two side bars (6), the second end of the arc-shaped support plate (5) being fixedly connected to an intermediate plate (8), and the intermediate plate (8) being slidable into the interior of the gap groove (7).

2. The trenchless sewage pipe network repair structure according to claim 1, characterized in that: A guide groove (12) is provided on the side where the two side strips (6) are close to each other, and guide strips (13) are fixedly connected to both sides of the middle plate (8), and the two guide strips (13) are respectively slidably connected inside the two guide grooves (12).

3. The trenchless sewage pipe network repair structure according to claim 1, characterized in that: A small bracket (9) is fixedly connected to the two side strips (6) at a position away from the first end, and a locking screw (10) capable of abutting against the middle plate (8) is threadedly connected to the small bracket (9).

4. The trenchless sewage pipe network repair structure according to claim 3, characterized in that: The inner side of the middle plate (8) is provided with a fade-proof groove (11) opposite to the locking screw (10), and the depth of the fade-proof groove (11) gradually increases from the end close to the second end to the end far from the second end.

5. The trenchless sewage pipe network repair structure according to claim 1, characterized in that: An annular positioning groove (4) is provided on the inner wall of the rubber seal (2) near both ends, and the annular support structure (3) is installed inside the annular positioning groove (4).

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