Pipeline plugging structure

Abstract

The utility model provides a pipeline plugging structure which is characterized in that an upper part comprises an upper hoop split body and at least one upper protective pipe, a lower part comprises a lower hoop split body and at least one lower protective pipe, and connecting flange plates are arranged at the tail end of the upper protective pipe and the tail end of the lower protective pipe; cushion layers are arranged on the inner wall of the upper hoop split body and the inner wall of the lower hoop split body; the blocking piece comprises a clamping column, the upper end of the blocking piece is inserted into the upper protection pipe, the lower end of the blocking piece is inserted into the lower protection pipe, and gate valves are detachably installed at the upper end of the upper protection pipe and the lower end of the lower protection pipe. The device is reasonable in structural design, the clamping column is lowered to serve as an intercepting structure of the air bag plugging element, the upper end of the clamping column is located in the upper protection pipe, the lower end of the clamping column is located in the lower protection pipe, the structure is stable, the air bag is not damaged, and the problem that the position is not easy to fix during air bag pipeline plugging operation is solved; due to the fact that the upper hoop and the lower hoop are used for being hooped and fixed in a split mode at the pipeline plugging position, the structure reinforcing effect is achieved, and the influence of tapping on the structural strength is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline engineering construction, and in particular relates to a pipeline blocking structure. Background Art

[0002] In order to process and transport tap water, water plants have buried water pipelines underground. The water supply from the water intake point to the water treatment unit and finally to the outside is all transported by water pipelines. During the maintenance and renovation of the water plant or the daily repair of tap water leakage, it is necessary to replace or maintain the water pipeline (partially). Usually, it is necessary to excavate the foundation pit first to expose the underground water pipeline before construction. Compared with the conventional pressure reduction and water stop construction, more and more plugging methods are used in the prior art without stopping water and reducing pressure. Generally, a hole is directly opened in the pipeline, and then a plugging plate is inserted. However, the hole in the pipeline will reduce the local structural strength of the pipeline, and the inner wall of the commonly used water pipeline has a cement mortar layer. After the construction is completed, the above-mentioned plugging method is often difficult to remove because the plugging plate is stuck with the cement mortar layer, which has disadvantages. Therefore, it is necessary to improve the existing plugging structure. Summary of the invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a pipeline plugging structure.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A pipeline blocking structure comprises an upper part, a lower part and a blocking member therebetween; the upper part comprises an upper petal clamp split and at least one upper protective tube on the upper petal clamp split, and upper connecting plates are respectively provided at both ends of the upper petal clamp split, the lower part comprises a lower petal clamp split and at least one lower protective tube on the lower petal clamp split, and lower connecting plates are respectively provided at both ends of the lower petal clamp split, the number of the lower protective tubes is the same as that of the upper protective tubes, and the positions correspond to each other, and the upper and lower connecting plates are locked and fixed by connecting members; connecting flanges are provided at the ends of the upper protective tube and the ends of the lower protective tube; cushion layers are provided on the inner walls of the upper petal clamp split and the inner walls of the lower petal clamp split; the blocking member comprises a clamping column penetrating between the upper protective tube and the lower protective tube, the clamping column is made of steel pipe, the upper end of which is inserted into the upper protective tube, and the lower end is inserted into the lower protective tube, and gate valves are detachably installed at the upper end of the upper protective tube and the lower end of the lower protective tube.

[0006] Furthermore, an upper ribbed plate is provided between the upper connecting plate and the outer wall of the upper petal clamp, and a lower ribbed plate is provided between the lower connecting plate and the outer wall of the lower petal clamp.

[0007] Furthermore, the upper connecting plate and the lower connecting plate are provided with connecting holes correspondingly.

[0008] Furthermore, the two upper connecting plates are symmetrically arranged on the upper petal clamp split body, and the two lower connecting plates are symmetrically arranged on the lower petal clamp split body.

[0009] Furthermore, the upper protective pipe and the lower protective pipe are both arranged vertically.

[0010] Furthermore, the cushion layer is made of rubber pad or nylon pad.

[0011] Furthermore, the clamping column, the upper protective pipe and the lower protective pipe are all made of seamless steel pipes.

[0012] Furthermore, the upper connecting plate and the lower connecting plate are both arranged horizontally.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The invention has a reasonable structural design. By lowering the clamping column as an intercepting structure of the airbag blocking element, the upper end of the clamping column is located in the upper protective tube and the lower end is located in the lower protective tube. The structure is stable and does not damage the airbag, which solves the problem that the position is difficult to fix during the airbag blocking pipeline operation. Since the upper and lower petal clamps are used to clamp and fix the pipeline blocking part separately, the structure is strengthened to avoid the influence of the opening on the structural strength. At the same time, the cushion layer of the inner wall of the upper and lower petal clamps is in contact with the pipeline, which effectively avoids water leakage through the pipeline surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 Schematic diagram when creating applications for the present invention;

[0017] Figure 2 for Figure 1 Sectional view in the AA direction;

[0018] Figure 3 for Figure 2 Schematic diagram after removing the pipes and clamps. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0023] A pipeline plugging structure, such as Figures 1 to 3 As shown, it includes an upper part 1, a lower part 2 and a blocking member therebetween; the upper part includes an upper petal clamp split 4 and at least one upper protective tube 5 on the upper petal clamp split, and upper connecting plates 6 are respectively provided at both ends of the upper petal clamp split; the lower part includes a lower petal clamp split 7 and at least one lower protective tube 8 on the lower petal clamp split, and lower connecting plates 9 are respectively provided at both ends of the lower petal clamp split, and the number of the lower protective tubes is the same as that of the upper protective tubes, and their positions correspond to each other.

[0024] The ends of the upper protective tube and the lower protective tube are both provided with connecting flanges 10, which can be used to conveniently connect to external equipment or components. For example, when drilling, it can be connected to a connection box, and when sealing, it can be connected to a gate valve or a sealing plate. The upper petal hoop split and the lower petal hoop split are combined to form an annular structure, and the upper protective tube and the lower protective tube are both connected to the cavity inside the annular structure; the inner wall of the upper petal hoop split and the inner wall of the lower petal hoop split are both provided with a cushion layer 14. The cushion layer arranged on the inner wall of the upper and lower petal hoop splits can effectively play a sealing role, ensuring that the upper and lower petal hoop splits are tightly fitted with the outer wall of the pipeline 16, and water is not easy to leak through the gap between the upper and lower petal hoop splits and the pipeline.

[0025] The blocking member includes a clamping column 3 that is inserted between the upper protective tube and the lower protective tube. The clamping column is made of steel pipe, and its upper end is inserted into the upper protective tube, and its lower end is inserted into the lower protective tube. Gate valves 11 are detachably installed at the upper end of the upper protective tube and the lower end of the lower protective tube. During the plugging operation, the airbag is released from the incoming water direction and inflated. The clamping column in this plugging structure can block the airbag, and then as the airbag continues to be inflated, the outer edge of the airbag fits with the inner wall of the pipe, thereby completing the pipe plugging. Usually, the upper protective tube and the lower protective tube are arranged vertically. The cushion layer is made of rubber pads or nylon pads. The clamping column, the upper protective tube, and the lower protective tube are all made of seamless steel pipes. The upper connecting plate and the lower connecting plate are arranged horizontally.

[0026] The two upper connecting plates are symmetrically arranged on the upper petal hoop split body, and the two lower connecting plates are symmetrically arranged on the lower petal hoop split body. An upper ribbed plate 12 is provided between the upper connecting plate and the outer wall of the upper petal hoop split body, and a lower ribbed plate 13 is provided between the lower connecting plate and the outer wall of the lower petal hoop split body to strengthen the structure at the connecting plate. The upper connecting plate and the lower connecting plate are provided with corresponding connecting holes. The upper and lower connecting plate members are locked by connecting members 15, and as an example, the connecting members can be bolts.

[0027] When used, excavate the position of the pipeline to be blocked, install the upper and lower clamp parts at the blocking position, and lock the connecting plates of the two with bolts, so that the cushion layer of the inner wall of the upper and lower clamp parts is close to the outer wall of the pipeline; then extend the drill bit into the upper protective pipe, and drill downward until it reaches the corresponding lower protective pipe, and withdraw the drill bit; then insert the clamp column into the upper protective pipe, and insert the lower end of the clamp column into the lower protective pipe, and keep the gate valves at the upper end of the upper protective pipe and the lower end of the lower protective pipe closed. Finally, release the airbag on the water side, and the clamp column in this blocking structure blocks the airbag, and as the airbag continues to be inflated, the outer edge of the airbag fits the inner wall of the pipeline, thereby completing the pipeline blocking.

[0028] The invention has a reasonable structural design. By lowering the clamping column as an intercepting structure of the airbag blocking element, the upper end of the clamping column is located in the upper protective tube and the lower end is located in the lower protective tube. The structure is stable and does not damage the airbag, which solves the problem that the position is difficult to fix during the airbag blocking pipeline operation. Since the upper and lower petal clamps are used to clamp and fix the pipeline blocking part separately, the structure is strengthened to avoid the influence of the opening on the structural strength. At the same time, the cushion layer of the inner wall of the upper and lower petal clamps is in contact with the pipeline, which effectively avoids water leakage through the pipeline surface.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline plugging structure, characterized in that: It comprises an upper part, a lower part and a blocking member therebetween; the upper part comprises an upper petal clamp split and at least one upper protective tube on the upper petal clamp split, and upper connecting plates are respectively provided at both ends of the upper petal clamp split; the lower part comprises a lower petal clamp split and at least one lower protective tube on the lower petal clamp split, and lower connecting plates are respectively provided at both ends of the lower petal clamp split, the number of the lower protective tubes is the same as that of the upper protective tubes, and the positions correspond to each other, and the upper and lower connecting plates are fixed by connecting members; connecting flanges are provided at the ends of the upper protective tube and the lower protective tube; cushion layers are provided on the inner walls of the upper petal clamp split and the lower petal clamp split; the blocking member comprises a clamping column which is passed through the upper protective tube and the lower protective tube, the clamping column is made of steel pipe, the upper end of which is inserted into the upper protective tube, and the lower end of which is inserted into the lower protective tube, and gate valves are detachably installed at the upper end of the upper protective tube and the lower end of the lower protective tube.

2. A pipeline plugging structure according to claim 1, characterized in that: An upper ribbed plate is arranged between the upper connecting plate and the outer wall of the upper petal clamp split body, and a lower ribbed plate is arranged between the lower connecting plate and the outer wall of the lower petal clamp split body.

3. A pipeline plugging structure according to claim 1, characterized in that: The upper connecting plate and the lower connecting plate are provided with connecting holes correspondingly.

4. A pipeline plugging structure according to claim 1, characterized in that: The two upper connecting plates are symmetrically arranged on the upper petal clamp split body, and the two lower connecting plates are symmetrically arranged on the lower petal clamp split body.

5. The pipeline plugging structure according to claim 1, characterized in that: The upper protective pipe and the lower protective pipe are arranged vertically.

6. A pipeline plugging structure according to claim 1, characterized in that: The cushion layer is a rubber cushion or a nylon cushion.

7. The pipeline plugging structure according to claim 1, characterized in that: The clamping column, upper protective pipe and lower protective pipe are all made of seamless steel pipes.

8. The pipeline plugging structure according to claim 1, characterized in that: The upper connecting plate and the lower connecting plate are both arranged horizontally.

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