A temporary plugging device for a top-pull pipe working well reserved port

Abstract

The utility model discloses a kind of top-pull pipe working well reserved mouth temporary plugging devices, comprising: a connecting rod, the end portion detachably connected with baffle, for plugging the reserved mouth on well wall;Multiple baffle, with the baffle rotationally connected;Disc, it is set to the side of the connecting rod away from baffle, when plugging reserved mouth, by inserting baffle and rotating the position of baffle, make the partial area of baffle protrude baffle and contact with well wall, then adjust disc position to contact with well wall and make it abut. The utility model is simple in structure, cooperates with baffle, baffle, connecting rod and disc, replaces traditional mortar masonry plugging mode, with simple structure design, convenient operation, installation and disassembly efficient effect, significantly speed up construction progress, reduce labor and material cost;And device can be reused, reduce construction waste generation, with good economy and practicality simultaneously, facilitate large-scale production and popularization and application.

Description

Technical Field

[0001] This utility model relates to the field of working well construction technology, specifically a temporary sealing device for the reserved opening of a jacking pipe working well. Background Technology

[0002] With the rapid development of municipal sewage pipe network projects, pipe jacking technology is continuously progressing towards intelligence, efficiency, environmental protection, and widespread application. During pipe jacking construction, the temporary sealing of the reserved opening for the working shaft is a common and crucial construction step, especially important in municipal engineering and residential community development. This process mainly ensures the smooth connection of the pipeline, reserves space for subsequent pipeline installation, and effectively prevents groundwater, silt, and other debris from flowing into the working shaft from the outside, thereby ensuring construction safety and project quality. The reserved opening for the working shaft refers to the orifice pre-set during the prefabrication stage for later pipeline connection. Before the pipeline is officially connected, to prevent mud, gravel, and other debris from entering the shaft through this opening, it must be temporarily sealed.

[0003] Currently, traditional sealing methods mainly involve brickwork combined with mortar for sealing. During subsequent pipeline installation, the sealing structure must be manually removed and cleaned using tools such as electric picks, shovels, and crowbars. This method is not only cumbersome and resource-intensive, but also involves a wide variety of materials and generates a large amount of construction waste, making it environmentally unfriendly and increasing construction costs and time risks. Therefore, a temporary sealing device for the reserved opening of the jacking pipe working well is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a temporary sealing device for the reserved opening of the jacking pipe working well, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a temporary sealing device for the reserved opening of a jacking pipe working well, comprising: A connecting rod with a baffle detachably connected to its end for sealing pre-reserved openings on the well wall; Multiple baffles are rotatably connected to the baffle plate; The disc is fitted onto the side of the connecting rod away from the baffle. When sealing the reserved opening, the baffle is inserted and the position of the baffle plate is rotated so that part of the baffle plate protrudes from the baffle and contacts the well wall. Then the position of the disc is adjusted to contact the well wall so that it abuts against it. The interaction force formed between the baffle plate and the disc on both sides of the well wall is used to fix the position of the baffle plate.

[0006] As a further embodiment of this utility model: the outer circumferential surface of the connecting rod has an external thread, and one end of the connecting rod is threadedly connected to the baffle.

[0007] As a further embodiment of this utility model: the baffle is connected to the baffle plate through a movable member, and the end of the movable member extends through to the other side of the baffle plate.

[0008] As a further embodiment of this utility model: the movable part has a T-shaped structure, and a spring is sleeved on the outer peripheral surface of the movable part, with the two ends of the spring abutting against the end of the movable part and the surface of the baffle, respectively.

[0009] As a further embodiment of this utility model: a rotating component is provided on the end face of the disc away from the baffle, and the rotating component is threadedly connected to the outer circumferential surface of the connecting rod.

[0010] As a further embodiment of this utility model, a rubber ring is provided on the outer circumferential surface of the baffle.

[0011] As a further embodiment of this utility model: the outer diameter of the disk is larger than the inner diameter of the reserved opening, and the outer diameter of the baffle matches the inner diameter of the reserved opening.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This application replaces the traditional mortar masonry sealing method by using baffles, baffle plates, connecting rods and discs in synergy. It has the advantages of simple structural design, convenient operation, and efficient installation and disassembly, which significantly speeds up the construction progress and reduces labor and material costs. In addition, the device can be reused, reducing construction waste. It also has good economic efficiency and practicality, making it easy to carry out large-scale production and promotion. Attached Figure Description

[0013] Figure 1 This is an application diagram of the temporary sealing device of this utility model; Figure 2 This is an enlarged schematic diagram of point A in this utility model; In the diagram: 1. Connecting rod; 2. Baffle; 3. Moving part; 4. Baffle plate; 5. Spring; 6. Disc; 7. Rotating part; 8. Well wall; 9. Reserved opening. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-2 In this embodiment of the utility model, a temporary sealing device for the reserved opening of a jacking pipe working well includes: A connecting rod 1, the end of which is detachably connected to a baffle 2, is used to seal the reserved opening 9 on the well wall 8; Multiple baffles 4 are rotatably connected to the baffle 2; The disc 6 is sleeved on the side of the connecting rod 1 away from the baffle 2. The outer diameter of the disc 6 is larger than the inner diameter of the reserved opening 9, and the outer diameter of the baffle 2 matches the inner diameter of the reserved opening 9. When the reserved opening 9 is blocked, the baffle 2 is inserted and the position of the baffle 4 is rotated so that a part of the baffle 4 protrudes from the baffle 2 and contacts the well wall 8. Then the position of the disc 6 is adjusted to contact the well wall 8 so that it abuts against the baffle 4. The interaction force formed between the baffle 4 and the disc 6 on both sides of the well wall 8 is used to fix the position of the baffle 2.

[0016] Specifically, the length of the connecting rod 1 is greater than the wall thickness of the well wall 8 to ensure that the position of the baffle 2 can smoothly reach the outside of the well wall 8. Depending on the size of the reserved opening 9, a matching baffle 2 can be selected. One end of the connecting rod 1 is threaded to the baffle 2. By rotating either the connecting rod 1 or the baffle 2, the two can be disassembled and assembled. The number of baffles 4 is at least two. In this embodiment, preferably, there are two baffles 4, symmetrically arranged on the baffle 2 to ensure a balanced interaction force with the disc 6 and provide sufficient support. The position of the disc 6 can be adjusted on the connecting rod 1. When the disc 6 abuts against the well wall 8, the position of the overall sealing structure can be fixed. When the sealing structure needs to be removed, the position of the disc 6 is adjusted so that it moves away from the baffle 2, making it convenient for workers to enter the reserved opening 9 with their hands or tools to adjust the rotation direction of the baffle 4. When the baffle 4 and the baffle 2 are completely overlapped, the baffle 2 can be pulled out or inserted into the reserved opening 9, thereby completing the overall disassembly and assembly of the sealing structure.

[0017] In this embodiment, preferably, the baffle 4 is connected to the baffle 2 via a movable member 3, and the end of the movable member 3 extends to the other side of the baffle 2. Furthermore, since the space outside the well wall 8 is insufficient for workers to quickly rotate the direction of the baffle 4, the movable member 3 is provided so that workers can complete the rotation of the baffle 4 from inside.

[0018] In this embodiment, preferably, the movable part 3 has a T-shaped structure, and a spring 5 is sleeved on the outer peripheral surface of the movable part 3. The two ends of the spring 5 abut against the end of the movable part 3 and the surface of the baffle 2, respectively. Furthermore, the spring 5 can apply a certain tension to the movable part 3, ensuring that the movable part 3 can stop in this direction at any time when the rotation source is lost during the rotation process, and the baffle 4 will also rotate synchronously. This achieves the synchronous rotation of the baffle 4 by rotating the movable part 3 from inside the reserved opening 9. If the space of the reserved opening 9 is small, a rod-shaped tool adapted to the end of the movable part 3 can be used. The end of the tool is aligned with the end of the movable part 3 and rotated.

[0019] In this embodiment, preferably, the end face of the disk 6 away from the baffle 2 is provided with a rotating component 7. The rotating component 7 is threadedly connected to the outer circumferential surface of the connecting rod 1. Further, the rotating component 7 is a nut, and the rotating component 7 and the disk 6 are rotatably connected. When the rotating component 7 can be pushed forward and locked in its own position, when a rotational force is applied to the rotating component 7, the position of the rotating component 7 on the connecting rod 1 will change. When the rotating component 7 loses the rotational force, the position of the rotating component 7 is fixed on the connecting rod 1.

[0020] In this embodiment, preferably, the outer circumferential surface of the baffle 2 is provided with a rubber ring. Furthermore, the rubber ring has a certain elastic coefficient, which can ensure that it fully fits the inner wall of the reserved opening 9, preventing external mud, sand and other debris from flowing into the working well. At the same time, in the case of some groundwater, although it cannot completely prevent groundwater from entering the working well, it can greatly reduce the amount of groundwater entering the working well.

[0021] The working principle and usage process of this utility model are as follows: First, insert the baffle 2 into the reserved opening 9. Then, rotate the movable part 3 to drive the baffle 4 to rotate synchronously, so that part of the baffle 4 protrudes from the outer diameter of the baffle 2, thereby limiting one side of the baffle 2. Then, rotate the rotating part 7 to make the disc 6 abut against the inner side of the well wall 8, thereby fixing the position of the overall sealing structure. When removing it, rotate the rotating part 7 in the opposite direction to make the disc 6 move away from the reserved opening 9, leaving space for the workers' hands or tools to enter the position of the rotating movable part 3. When the baffle 4 is adjusted to within the diameter range of the baffle 2, the sealing structure can be removed from the reserved opening 9.

[0022] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0023] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A temporary plugging device for a top-tensioned tubular wellbore window, characterized in that, include: A connecting rod with a baffle detachably connected to its end for sealing pre-reserved openings on the well wall; Multiple baffles are rotatably connected to the baffle plate; The disc is fitted onto the side of the connecting rod away from the baffle. When sealing the reserved opening, the baffle is inserted and the position of the baffle plate is rotated so that part of the baffle plate protrudes from the baffle and contacts the well wall. Then, the position of the disc is adjusted to contact the well wall so that it abuts against it. The interaction force formed between the baffle plate and the disc on both sides of the well wall is used to fix the position of the baffle plate.

2. The temporary wellbore abandonment plug of claim 1, wherein, The outer circumferential surface of the connecting rod has external threads, and one end of the connecting rod is threadedly connected to the baffle.

3. The temporary sealing device for the reserved opening of the jacking pipe working well according to claim 1, characterized in that, The baffle is connected to the baffle plate via a movable component, the end of which extends through to the other side of the baffle plate.

4. The temporary sealing device for the reserved opening of the jacking pipe working well according to claim 3, characterized in that, The movable component has a T-shaped structure, and a spring is fitted on the outer circumference of the movable component. The two ends of the spring abut against the end of the movable component and the surface of the baffle, respectively.

5. The temporary sealing device for the reserved opening of the jacking pipe working well according to claim 2, characterized in that, The end face of the disk away from the baffle is provided with a rotating component, which is threadedly connected to the outer circumferential surface of the connecting rod.

6. The temporary sealing device for the reserved opening of the jacking pipe working well according to claim 1, characterized in that, The outer circumference of the baffle is provided with a rubber ring.

7. The temporary sealing device for the reserved opening of the jacking pipe working well according to claim 1, characterized in that, The outer diameter of the disk is larger than the inner diameter of the reserved opening, and the outer diameter of the baffle matches the inner diameter of the reserved opening.

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