Underground structure embedded sleeve plugging device

Abstract

The utility model relates to the technical field of embedded sleeves, in particular to an underground structure embedded sleeve plugging device which comprises an embedded sleeve body. The plugging mechanism comprises a cover plate, a plug is fixedly connected to the side wall of the cover plate, the side wall of the plug is attached to the inner side wall of the embedded sleeve body, an annular groove is formed in the side wall of the plug, an annular elastic plate is fixedly connected to the inner wall of the annular groove in a sealed mode, and a circular cavity is formed in the cover plate; and an air pumping mechanism for pumping air into the annular groove is arranged in the circular cavity. The plugging mechanism is arranged, the circular cavity can pump external air into the annular groove through the multiple one-way air suction pipes and the multiple one-way air outlet pipes, the pressure intensity in the annular groove is increased, then the elastic plate is extruded to expand outwards, the side wall of the elastic plate is tightly attached to the inner wall of the embedded sleeve body, and the plugging position is fixed; and plugging of the interior of the embedded sleeve body is achieved, and the plugging effect is stable.

Description

Technical Field

[0001] This utility model relates to the field of pre-embedded sleeve technology, specifically to a pre-embedded sleeve sealing device for underground structures. Background Technology

[0002] Pre-embedded sleeves are pre-drilled holes for pipes to pass through brick walls, concrete beams, concrete walls, and other structural components. They are suitable for applications such as civil defense, underground engineering, chemical industry, steel industry, tap water, and sewage treatment, where pipes need to pass through walls and require strict waterproofing.

[0003] During underground engineering construction, pre-embedded sleeves are reserved for future use and need to be temporarily sealed to prevent rainwater from entering the underground structure. However, currently, the sealing of pre-embedded sleeves is done with materials such as expanding foam. However, after a period of use, expanding foam will age, which will reduce the sealing effect of the pre-embedded sleeves and allow rainwater to enter the underground structure through the pre-embedded sleeves. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a pre-embedded sleeve sealing device for underground structures.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sealing device for pre-embedded sleeves in underground structures, comprising:

[0007] Pre-embedded sleeve body;

[0008] A sealing mechanism includes a cover plate, a plug fixedly connected to the side wall of the cover plate, the plug side wall being fitted with the inner side wall of the pre-embedded sleeve body, an annular groove being formed on the plug side wall, an annular elastic plate being sealed and fixedly connected to the inner wall of the annular groove, a circular cavity being formed inside the cover plate, and an air pumping mechanism for pumping air into the annular groove being provided inside the circular cavity.

[0009] Preferably, the pumping mechanism includes a circular plate that is slidably and sealed to the inner wall of the circular cavity. The inner wall of the circular cavity between the blockage and the circular plate is fixedly connected with a plurality of one-way suction pipes. The inner wall of the circular cavity between the blockage and the circular plate is connected to the inner wall of the annular groove through a plurality of one-way exhaust pipes.

[0010] Preferably, a rectangular rod is fixedly connected to the side wall of the circular plate away from the blockage. The side wall of the rectangular rod penetrates the inner wall of the circular cavity and extends to its outside. A pull rod is fixedly connected to the side wall of the rectangular rod away from the circular plate. The side wall of the pull rod is connected to the side wall of the cover plate by two bolts.

[0011] Preferably, a limiting ring is fixedly connected to the inner wall of the circular cavity located between the plug and the circular plate.

[0012] Preferably, the inner wall of the annular groove is connected to the side wall of the cover plate through an exhaust pipe, and a manual valve is installed in the exhaust pipe.

[0013] Preferably, the exhaust pipe penetrates the inner wall of the circular cavity, and the side wall of the circular plate is in a sealed sliding connection with the side wall of the exhaust pipe.

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

[0015] 1. A sealing mechanism is set up. The circular cavity can pump outside air into the annular groove through multiple one-way air intake pipes and multiple one-way air outlet pipes, which increases the pressure in the annular groove. This causes the elastic plate to expand outward, making the side wall of the elastic plate tightly fit the inner wall of the pre-embedded sleeve body, fixing the blocking position, and achieving sealing inside the pre-embedded sleeve body. The sealing effect is stable, avoiding the use of materials such as foam for sealing in the existing technology. However, the foam will age after a period of use, which will lead to a decrease in the sealing effect on the pre-embedded sleeve.

[0016] 2. An exhaust pipe and a manual valve are provided. The manual valve can be turned to open the exhaust pipe, releasing the gas in the annular groove. This causes the elastic plate to retract to its initial position, making it easier for workers to remove the blockage from the pre-embedded sleeve body for subsequent use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an underground structure pre-embedded sleeve sealing device proposed in this utility model;

[0018] Figure 2 for Figure 1 A top-view sectional structural diagram;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 for Figure 1 A schematic diagram of the vertical cross-sectional structure of the central exhaust pipe.

[0021] In the diagram: 1. Embedded sleeve body; 2. Cover plate; 3. Block; 4. Annular groove; 5. Elastic plate; 6. Circular cavity; 7. Circular plate; 8. One-way suction pipe; 9. One-way exhaust pipe; 10. Rectangular rod; 11. Tie rod; 12. Bolt; 13. Limiting ring; 14. Exhaust pipe; 15. Manual valve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 An underground structure pre-embedded sleeve sealing device includes a pre-embedded sleeve body 1.

[0024] The sealing mechanism includes a cover plate 2, with a plug 3 fixedly connected to the side wall of the cover plate 2. The side wall of the plug 3 is fitted against the inner side wall of the pre-embedded sleeve body 1 (e.g., Figure 3 As shown), the side wall of the plug 3 is provided with an annular groove 4, and the inner wall of the annular groove 4 is sealed and fixedly connected with an annular elastic plate 5. The cover plate 2 is provided with a circular cavity 6, and the circular cavity 6 is provided with a pumping mechanism for pumping air into the annular groove 4.

[0025] The air pumping mechanism includes a circular plate 7 that is slidably and sealed to the inner wall of the circular cavity 6. Multiple one-way suction pipes 8 are fixedly connected to the inner wall of the circular cavity 6 between the blockage 3 and the circular plate 7. The inner wall of the circular cavity 6 between the blockage 3 and the circular plate 7 is connected to the inner wall of the annular groove 4 through multiple one-way exhaust pipes 9.

[0026] It should be noted that the one-way intake pipe 8 only allows air to enter the circular cavity 6 from the outside, and the one-way exhaust pipe 9 only allows gas to enter the annular groove 4 from the circular cavity 6.

[0027] A rectangular rod 10 is fixedly connected to the side wall of the circular plate 7 away from the blockage 3. The side wall of the rectangular rod 10 penetrates the inner wall of the circular cavity 6 and extends to its outside. A pull rod 11 is fixedly connected to the side wall of the rectangular rod 10 away from the circular plate 7. The side wall of the pull rod 11 is connected to the side wall of the cover plate 2 by two bolts 12.

[0028] When sealing the pre-embedded sleeve body 1, firstly, the side wall of the plug 3 is attached to the inner wall of the pre-embedded sleeve body 1, and the side wall of the cover plate 2 is attached to the side wall of the pre-embedded sleeve body 1. Then, the two bolts 12 are rotated to separate from the side wall of the cover plate 2. Then, the worker can pull the pull rod 11 back and forth, so that the rectangular rod 10 drives the circular plate 7 to slide back and forth on the inner wall of the circular cavity 6, so that the space in the circular cavity 6 intermittently increases and decreases. Then, the circular cavity 6 can pump the outside air into the annular groove 4 through multiple one-way air intake pipes 8 and multiple one-way air outlet pipes 9, so that the pressure in the annular groove 4 increases, which in turn squeezes the elastic plate 5 to expand outward, so that the side wall of the elastic plate 5 is tightly attached to the inner wall of the pre-embedded sleeve body 1, fixing the position of the plug 3, realizing the sealing of the pre-embedded sleeve body 1, and the sealing effect is stable. This avoids the use of materials such as foam for sealing in the existing technology, but the foam will age after a period of use, which will lead to a decrease in the sealing effect of the pre-embedded sleeve.

[0029] After sealing the inner wall of the pre-embedded sleeve body 1, rotate the two bolts 12 to connect with the side wall of the cover plate 2 to fix the position of the tie rod 11 and prevent it from moving.

[0030] The inner wall of the circular cavity 6, located between the plug 3 and the circular plate 7, is fixedly connected with a limit ring 13 (e.g., Figure 3 As shown), to avoid the circular plate 7 moving too far within the circular cavity 6, which would cause multiple one-way suction tubes 8 to be not between the circular plate 7 and the blockage 3.

[0031] The inner wall of the annular groove 4 is connected to the side wall of the cover plate 2 via an exhaust pipe 14. A manual valve 15 is installed inside the exhaust pipe 14. The exhaust pipe 14 penetrates the inner wall of the circular cavity 6, and the side wall of the circular plate 7 is in a sealing sliding connection with the side wall of the exhaust pipe 14 (e.g., Figure 4 As shown, when the pre-embedded sleeve body 1 is needed, the staff can turn the manual valve 15 to open the exhaust pipe 14, release the gas in the annular groove 4, and then the elastic plate 5 will retract to the initial position, making it easier for the staff to remove the blockage 3 from the pre-embedded sleeve body 1.

[0032] When sealing the pre-embedded sleeve body 1, firstly, the side wall of the plug 3 is attached to the inner wall of the pre-embedded sleeve body 1, and the side wall of the cover plate 2 is attached to the side wall of the pre-embedded sleeve body 1. Then, the two bolts 12 are rotated to separate from the side wall of the cover plate 2. Then, the worker can pull the pull rod 11 back and forth, so that the rectangular rod 10 drives the circular plate 7 to slide back and forth on the inner wall of the circular cavity 6, so that the space in the circular cavity 6 intermittently increases and decreases. Then, the circular cavity 6 can pump the outside air into the annular groove 4 through multiple one-way air intake pipes 8 and multiple one-way air outlet pipes 9, so that the pressure in the annular groove 4 increases, which in turn squeezes the elastic plate 5 to expand outward, so that the side wall of the elastic plate 5 is tightly attached to the inner wall of the pre-embedded sleeve body 1, fixing the position of the plug 3, and achieving the sealing of the pre-embedded sleeve body 1. The sealing effect is stable, avoiding the use of materials such as foam for sealing in the existing technology. However, the foam will age after a period of use, which will lead to a decrease in the sealing effect of the pre-embedded sleeve.

[0033] Furthermore, after sealing the inner wall of the pre-embedded sleeve body 1, rotate the two bolts 12 to connect with the side wall of the cover plate 2 to fix the position of the tie rod 11 and prevent it from moving.

[0034] When the pre-embedded sleeve body 1 is needed in the future, the staff can turn the manual valve 15 to open the exhaust pipe 14, release the gas in the annular groove 4, and then the elastic plate 5 will retract to the initial position, so that the staff can remove the blockage 3 from the pre-embedded sleeve body 1.

[0035] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An underground structure pre-buried sleeve plugging device, characterized in that, Include: Pre-buried sleeve body (1); The sealing mechanism includes a cover plate (2), the cover plate (2) is fixedly connected with the plug (3) on the side wall, the plug (3) side wall is matched with the inner wall of the pre-buried sleeve body (1), the plug (3) side wall is provided with an annular groove (4), the annular groove (4) inner wall is sealingly and fixedly connected with the annular elastic plate (5), the cover plate (2) is provided with a circular cavity (6), and the circular cavity (6) is provided with a pump gas mechanism for pumping gas in the annular groove (4).

2. The underground structure pre-buried sleeve plugging device according to claim 1, characterized in that, The pump gas mechanism includes a circular plate (7) sealingly and slidably connected to the inner wall of the circular cavity (6), a plurality of one-way air suction pipes (8) are fixedly connected to the inner wall between the plug (3) and the circular plate (7), and the inner wall between the plug (3) and the circular plate (7) is communicated with the inner wall of the annular groove (4) through a plurality of one-way air outlet pipes (9).

3. The underground structure pre-buried sleeve plugging device according to claim 2, characterized in that, The side wall of the circular plate (7) away from the plug (3) is fixedly connected with a rectangular rod (10), the rectangular rod (10) side wall penetrates the inner wall of the circular cavity (6) and extends to the outside thereof, the side wall of the rectangular rod (10) away from the circular plate (7) is fixedly connected with a pull rod (11), and the pull rod (11) side wall is connected with the side wall of the cover plate (2) through two bolts (12).

4. The underground structure pre-buried sleeve plugging device according to claim 2, characterized in that, The inner wall between the plug (3) and the circular plate (7) of the circular cavity (6) is fixedly connected with a limiting ring (13).

5. The underground structure pre-buried sleeve plugging device according to claim 2, characterized in that, The inner wall of the annular groove (4) is communicated with the side wall of the cover plate (2) through an exhaust pipe (14), and the exhaust pipe (14) is provided with a manual valve (15) therein.

6. The underground structure pre-buried sleeve plugging device according to claim 5, characterized in that, The exhaust pipe (14) penetrates the inner wall of the circular cavity (6), and the side wall of the circular plate (7) is sealingly and slidably connected with the side wall of the exhaust pipe (14).

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