Pipeline plugging device for municipal pipe network

Abstract

The utility model discloses a pipeline plugging device for a municipal pipe network, and relates to the technical field of pipeline plugging. The pipeline plugging device for the municipal pipe network comprises a plugging sleeve, a sealing groove is formed in the inner ring of the plugging sleeve, the sealing groove is of an annular structure, a sealing ring is bonded in the sealing groove, the sealing ring is of a hollow structure, and a pressurizing structure is arranged in the plugging sleeve. According to the pipeline plugging device for the municipal pipe network, through the design of the pressing plate, the connecting rod, the sliding plug and the communicating pipe, inflation expansion of the sealing ring can be achieved, the sealing ring is made to be tightly attached to the outer surface of the pipeline, pressure is applied to the surface of the pipeline, and therefore sealing of the pipeline is effectively achieved; by means of the design, the leakage problem caused by the fact that a simple sealing ring cannot bear high water pressure can be avoided, and the sealing effect and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline blocking, in particular to a pipeline blocking device for a municipal pipeline network. Background Art

[0002] Pipe plugging devices for municipal pipeline networks refer to equipment used to plug pipelines and prevent liquid or gas leakage. These devices are usually designed to deal with pipeline maintenance, emergency repairs, pipeline replacement or leakage prevention.

[0003] The pipeline plugging device in the prior art generally achieves sealing through a sealing ring, but due to the relatively high water pressure in the pipeline, a simple sealing ring cannot achieve a good sealing effect. When the water pressure in the pipeline is relatively high, a simple sealing ring may not be able to withstand the high pressure, resulting in a loose seal, thereby causing leakage, which may cause pollution to the environment around the pipeline and may cause safety hazards.

[0004] Therefore, it is urgent to design a pipeline plugging device for municipal pipe network to solve the above problems. Utility Model Content

[0005] To solve the above problems, the utility model provides a pipe sealing device for a municipal pipe network, which can inflate the sealing ring so that it fits tightly against the outer surface of the pipe and applies pressure to the pipe surface, thereby effectively sealing the pipe and improving the sealing effect and safety.

[0006] The utility model aims to provide a pipe plugging device for a municipal pipe network, comprising a plugging sleeve, the inner ring of which is provided with a sealing groove, and the sealing groove is an annular structure, a sealing ring is bonded in the sealing groove, the sealing ring is a hollow structure, and a pressurizing structure is arranged inside the plugging sleeve.

[0007] In one embodiment of the present utility model, the pressurization structure includes a sealing box and a sliding plug, the sealing box is fixed to the inner surface of the blocking sleeve, and the sliding plug is sealingly and slidingly connected to the inner surface of the sealing box.

[0008] In an embodiment of the present utility model, the pressurizing structure further comprises a spring, one end of the spring is connected to the inner surface of the sealing box, and the other end of the spring is connected to the sliding plug.

[0009] In one embodiment of the utility model, the boosting structure further includes a connecting rod and a pressure plate, wherein one end of the connecting rod is fixed on the sliding plug and the other end extends to the outside of the sealing box, and the pressure plate is fixed to the end of the connecting rod located outside the sealing box.

[0010] In one embodiment of the utility model, the pressurization structure further includes a connecting pipe, one end of which is connected to the sealing box, and the other end of which is connected to the sealing ring.

[0011] In one embodiment of the utility model, a side of the sealing box is provided with an escape opening adapted to the connecting rod.

[0012] In an implementation manner of the utility model, the blocking sleeve is provided with two through-holes adapted to the connecting pipes.

[0013] In one implementation of the present invention, the pressing plate is in a disc-shaped structure.

[0014] The utility model has the following beneficial effects:

[0015] The utility model provides a pipe sealing device for a municipal pipe network. Through the design of a pressure plate, a connecting rod, a sliding plug and a connecting pipe, the sealing ring can be inflated to make it fit tightly on the outer surface of the pipe and apply pressure to the surface of the pipe, thereby effectively sealing the pipe. This design can avoid leakage problems caused by a simple sealing ring being unable to withstand high water pressure, thereby improving the sealing effect and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a pipe plugging device for a municipal pipe network provided by the utility model;

[0017] Figure 2 for Figure 1 A magnified view of the structure at A.

[0018] In the figure: 1. sealing sleeve; 2. sealing groove; 3. sealing ring; 4. sealing box; 5. sliding plug; 6. spring; 7. connecting rod; 8. pressure plate; 9. connecting pipe. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] Reference Figure 1-2 A pipe plugging device for a municipal pipe network includes a plugging sleeve 1, the inner ring of the plugging sleeve 1 is provided with a sealing groove 2, and the sealing groove 2 is an annular structure, a sealing ring 3 is bonded in the sealing groove 2, and the sealing ring 3 is a hollow structure, and a pressurizing structure is arranged inside the plugging sleeve 1.

[0023] In some embodiments, the pressurization structure includes a sealing box 4, a sliding plug 5, a spring 6, a connecting rod 7, a pressure plate 8 and a connecting pipe 9. The sealing box 4 is fixed to the inner surface of the sealing sleeve 1, and the sliding plug 5 is sealingly and slidingly connected to the inner surface of the sealing box 4. One end of the spring 6 is connected to the inner surface of the sealing box 4, and the other end is connected to the sliding plug 5. One end of the connecting rod 7 is fixed on the sliding plug 5, and the other end extends to the outside of the sealing box 4.

[0024] Furthermore, a side of the sealing box 4 is provided with an avoidance opening adapted to the connecting rod 7, the pressure plate 8 is fixed to one end of the connecting rod 7 located outside the sealing box 4, and the pressure plate 8 is in a disc-shaped structure, which enables the pressure plate 8 to have a relatively large force-bearing area, making it easy for the pressure plate 8 to move under the action of water pressure, one end of the connecting pipe 9 is connected to the sealing box 4, and the other end is connected to the sealing ring 3, and the sealing sleeve 1 is provided with two through openings adapted to the connecting pipe 9.

[0025] The specific working principle of the utility model is as follows:

[0026] When the municipal pipe network pipe plugging device proposed by the utility model is used, the staff sets the plugging sleeve 1 at the pipe mouth of the pipe. When the plugging sleeve 1 is set at the pipe mouth of the pipe, the inner surface of the plugging sleeve 1 fits with the outer surface of the pipe. In addition, the inner ring of the sealing ring 3 also fits with the outer surface of the pipe. Under the action of the water pressure in the pipe, the pressure plate 8 will move and drive the sliding plug 5 to move through the connecting rod 7. When the sliding plug 5 moves, it can press the gas in the sealing box 4 into the inside of the sealing ring 3 through the connecting pipe 9, so that the sealing ring 3 is in an inflated state. In this case, the sealing ring 3 can tightly press the outer surface of the pipe and apply pressure to the pipe surface. This design can ensure the sealing effect of the sealing ring 3 between the plugging sleeve 1 and the pipe, and avoid water seepage.

[0027] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

[0029] The principles and implementation methods of the utility model are described in this article using specific examples. The description of the above examples is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.

Claims

1. A pipe plugging device for a municipal pipe network, characterized in that: The invention comprises a plugging sleeve (1), wherein the inner ring of the plugging sleeve (1) is provided with a sealing groove (2), and the sealing groove (2) is an annular structure, a sealing ring (3) is bonded inside the sealing groove (2), and the sealing ring (3) is a hollow structure, and a pressurizing structure is arranged inside the plugging sleeve (1).

2. A pipe plugging device for a municipal pipe network according to claim 1, characterized in that: The pressurizing structure comprises a sealing box (4) and a sliding plug (5); the sealing box (4) is fixed on the inner surface of the plugging sleeve (1); and the sliding plug (5) is sealingly and slidably connected to the inner surface of the sealing box (4).

3. A pipe plugging device for a municipal pipe network according to claim 2, characterized in that: The pressurizing structure further comprises a spring (6), one end of which is connected to the inner surface of the sealing box (4), and the other end of which is connected to the sliding plug (5).

4. A pipe plugging device for a municipal pipe network according to claim 3, characterized in that: The boost structure further comprises a connecting rod (7) and a pressure plate (8); one end of the connecting rod (7) is fixed on the sliding plug (5), and the other end extends to the outside of the sealing box (4); and the pressure plate (8) is fixed to the end of the connecting rod (7) located outside the sealing box (4).

5. A pipe plugging device for a municipal pipe network according to claim 4, characterized in that: The pressurizing structure further comprises a connecting pipe (9), one end of which is connected to the sealing box (4) and the other end of which is connected to the sealing ring (3).

6. A pipe plugging device for a municipal pipe network according to claim 4, characterized in that: The side of the sealing box (4) is provided with an escape opening adapted to the connecting rod (7).

7. A pipe plugging device for a municipal pipe network according to claim 5, characterized in that: The blocking sleeve (1) is provided with two through-holes adapted to the connecting pipe (9).

8. A pipe plugging device for a municipal pipe network according to claim 4, characterized in that: The pressing plate (8) is in a disc-shaped structure.

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