Temporary plugging device for casing pipe

Abstract

A temporary plugging device for a sleeve belongs to the technical field of constructional engineering and comprises a first sleeve used for plugging the inside of the sleeve and a second sleeve used for plugging the outside of the sleeve, an elastic rubber layer is arranged on the outer wall of the first sleeve and used for being connected with the inner wall of the sleeve in a sealed mode, and a cover plate is welded to the top end of the first sleeve and used for being connected with the inner wall of the sleeve in a sealed mode. An annular rubber pad is arranged on the edge of the lower surface of the cover plate, the annular rubber pad is used for pressing the top end of the sleeve, the first sleeve and the sleeve are sleeved with the second sleeve, the second sleeve is connected with the first sleeve through a screw rod, a rubber gasket is arranged at the bottom end of the second sleeve, and the rubber gasket is used for pressing and sealing the ground on the periphery of the sleeve. The sleeve plugging effect and the construction efficiency can be improved, and the construction cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of construction engineering, and specifically relates to a temporary plugging device for a casing. Background Art

[0002] In the field of mechanical and electrical installation, pre-buried casings need to be reserved at the entrance and exit pipes of underground garages, and before backfilling, the exit casings need to be temporarily blocked to prevent external water from seeping into the basement. Traditional casing blocking, which uses oil hemp and dry hard cement mortar to fill the casing inside and double-layer plastic tape to fix the outside, can also achieve a water-stopping effect, but the sealing effect is poor, there is a certain risk of leakage, and the materials are not environmentally friendly, on-site construction is time-consuming and labor-intensive, and cannot be used in a turnover manner, which is not conducive to cost control. Utility Model Content

[0003] In view of the problems of the prior art, the present invention discloses a temporary casing plugging device, the purpose of which is to solve the following problems: the existing garage inlet and outlet casing plugging method has poor sealing effect, there is a certain risk of leakage, and the materials are not environmentally friendly, on-site construction is time-consuming and labor-intensive, and cannot be used in rotation, which is not conducive to cost control.

[0004] To achieve the above purpose, the technical solution of this novel invention is:

[0005] A temporary casing plugging device comprises a first sleeve for plugging the inside of the casing and a second sleeve for plugging the outside of the casing, wherein the outer wall of the first sleeve is provided with an elastic rubber layer, and the elastic rubber layer is used to be sealed and connected with the inner wall of the casing, a cover plate is welded to the top end of the first sleeve, and an annular rubber pad is provided on the edge of the lower surface of the cover plate, and the annular rubber pad is used to be pressed against the top end of the casing, the second sleeve is sleeved outside the first sleeve and the casing, and is connected to the first sleeve through a screw, and a rubber gasket is provided at the bottom end of the second sleeve, and the rubber gasket is used to be pressed and sealed against the ground or wall around the casing.

[0006] Preferably, the bottom end of the first sleeve is closed to form a bottom plate structure, the upper end of the bottom plate structure is provided with a diamond rod, and sliding rods are provided on the side walls of the first sleeve corresponding to the left and right ends of the diamond rod. The sliding rod passes through the first sleeve and is slidably connected to the first sleeve. The outer end of the sliding rod is fixedly connected to an arc-shaped pressure plate. In the initial state, the arc-shaped pressure plate is embedded in the elastic rubber layer, and the inner end of the sliding rod is fixedly connected to a slide groove. The left and right ends of the diamond rod are used in conjunction with the slide groove.

[0007] Preferably, the top end of the diamond rod is connected to the bottom end of the screw through a hinge seat, the screw passes through the center of the cover plate and is screwed to the cover plate, a through hole is provided at the top end of the second sleeve corresponding to the screw, and the part of the screw extending outward through the through hole is screwed with a locking nut.

[0008] Preferably, the diamond rod is composed of four rod bodies connected end to end, and the connecting parts of adjacent rod bodies are hinged, and the ends of one rod body at the left and right ends of the diamond rod are connected to rollers, and the rollers are slidably matched with the slide grooves.

[0009] Preferably, the bottom end of the diamond rod is fixedly connected to the base structure through a first hinge seat, the top end of the diamond rod is connected to the bottom end of the screw through a second hinge seat, a thrust bearing is connected between the bottom end of the screw and the top end of the second hinge seat, and a screw block is provided at the top end of the screw.

[0010] Preferably, an overflow hole is provided at the upper portion of the side wall of the second sleeve, and a one-way valve that only allows water to flow outward is provided in the overflow hole.

[0011] Preferably, when the device is installed on the ground, the height of the overflow hole is lower than the height of the top end of the sleeve; when the device is installed on the wall, the overflow hole is located at the lower side.

[0012] Preferably, a sliding hole is provided on the side wall of the first sleeve, the sliding rod is slidably connected to the sliding hole, the inner end of the sliding rod is fixedly connected to a fixed block, a sliding groove is provided on the inner surface of the fixed block, a return spring is sleeved on the outer periphery of the sliding rod between the fixed block and the inner port of the sliding hole, and the two ends of the return spring are respectively fixedly connected to the fixed block and the inner wall of the first sleeve.

[0013] The beneficial effects of the new casing temporary plugging device are:

[0014] The double protection of the new type can prevent water from entering the inner wall of the casing or debris from falling into it, thereby preventing water from seeping into the garage. The overflow hole and the one-way valve can provide a third level of protection. Even if water enters the device, it can be discharged through the overflow hole. While improving the casing protection effect, the new type is also easy to use, can be used for a long time, and reduces economic costs. At the same time, it also avoids the defect of the existing plugging method that the materials used are not environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the new device when in use.

[0016] Figure 2 This is a front view structural diagram of the new device when in use.

[0017] 1. Second sleeve; 2. First sleeve; 3. Rubber gasket; 4. Through hole; 5. Screw; 6. Cover plate; 7. Diamond rod; 8. Fixed block; 9. Sliding rod; 10. Arc pressure plate; 11. Roller; 12. Reset spring; 13. Overflow hole; 14. Pressing nut; 15. Twist block; 16. Elastic rubber layer; 17. Casing; 18. Ground. DETAILED DESCRIPTION

[0018] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0019] The following embodiments may be understood as a part of a local structure or method that is expressed separately in the present invention, or may be understood as a combination of the embodiments to explain the connotation of a larger structure or method of the present invention.

[0020] Example 1

[0021] A temporary casing plugging device, such as Figure 1 , 2 As shown, it includes a first sleeve 2 for sealing the inside of the sleeve 17 and a second sleeve 1 for sealing the outside of the sleeve 17. The outer wall of the first sleeve 2 is provided with an elastic rubber layer 16, and the elastic rubber layer 16 is used to be sealed and connected with the inner wall of the sleeve 17. A cover plate 6 is welded to the top of the first sleeve 2, and an annular rubber pad (not shown in the figure) is provided on the edge of the lower surface of the cover plate 6. The annular rubber pad is used to be pressed against the top of the sleeve 17. The second sleeve 1 is sleeved outside the first sleeve 2 and the sleeve 17, and is connected to the first sleeve 2 through a screw 5. A rubber gasket 3 is provided at the bottom end of the second sleeve 1, and the rubber gasket 3 is used to be pressed and sealed against the outer peripheral ground 18 of the sleeve 17.

[0022] Example 2

[0023] like Figure 1 , 2 As shown, the bottom end of the first sleeve 2 is closed to form a bottom plate structure, and a diamond rod 7 is provided at the upper end of the bottom plate structure. Slide rods 9 are provided on the side walls of the first sleeve 2 corresponding to the left and right ends of the diamond rod 7. The slide rod 9 passes through the first sleeve 2 and is slidably connected to the first sleeve 2. The outer end of the slide rod 9 is fixedly connected to an arc pressure plate 10. In the initial state, the arc pressure plate 10 is embedded in the elastic rubber layer 16, and the inner end of the slide rod 9 is fixedly connected to a slide groove, and the left and right ends of the diamond rod 7 are used in conjunction with the slide groove.

[0024] In this embodiment, when the diamond rod is compressed, the left and right ends of the diamond rod squeeze the slide groove and slide in the slide groove, thereby causing the slide rod to push the arc pressure plate outward, and the arc pressure plate is pressed against the inner wall of the underground part of the casing, thereby achieving relative fixation and positioning between the first sleeve and the casing.

[0025] Example 3

[0026] like Figure 1 , 2As shown, the top end of the diamond rod 7 is connected to the bottom end of the screw 5 through a hinge seat (not marked in the figure), the screw 5 passes through the center of the cover plate 6 and is screwed to the cover plate, and a through hole 4 is opened at the top of the second sleeve 1 at a position corresponding to the screw 5, and the part of the screw 5 extending outward through the through hole 4 is screwed with a locking nut 14.

[0027] like Figure 1 As shown, the diamond rod 7 is composed of four rod bodies connected end to end, and the connecting parts of adjacent rod bodies are hinged. The end of one rod body at the left and right ends of the diamond rod is connected to a roller 11, and the roller 11 is slidably matched with the slide groove.

[0028] like Figure 1 As shown, the bottom end of the diamond rod 7 is fixedly connected to the base structure via a first hinge seat, and the top end of the diamond rod 7 is connected to the bottom end of the screw 5 via a second hinge seat. A thrust bearing (not shown in the figure) is connected between the bottom end of the screw 5 and the top end of the second hinge seat. A screw block 15 is provided at the top end of the screw 5. The rotation of the screw can be achieved by clamping the screw block with a clamping tool.

[0029] Example 4

[0030] like Figure 1 , 2 As shown, an overflow hole 13 is provided on the upper part of the side wall of the second sleeve 1, and a one-way valve (not shown in the figure) is provided in the overflow hole 13 to limit water to flow outward.

[0031] like Figure 1 As shown, when the device is installed on the ground, the height of the overflow hole 13 is lower than the height of the top end of the sleeve 17; when the device is installed on the wall, the overflow hole 13 is located at the lower side.

[0032] Example 5

[0033] like Figure 1 As shown, a sliding hole (not marked in the figure) is provided on the side wall of the first sleeve 2, the sliding rod 9 is slidably connected to the sliding hole, the inner end of the sliding rod 9 is fixedly connected to a fixed block 8, and a sliding groove is provided on the inner surface of the fixed block 8. A return spring 12 is sleeved on the outer periphery of the sliding rod 9 between the fixed block 8 and the inner port of the sliding hole, and the two ends of the return spring 12 are respectively fixedly connected to the fixed block 8 and the inner wall of the first sleeve 2. In the initial state, the return spring 12 squeezes the fixed block 8, so that the arc pressure plate 10 is embedded in the elastic rubber layer 16.

[0034] The use principle of this new model:

[0035] When the present invention is used, the first sleeve is first inserted into the sleeve. When the outer edge of the lower surface of the cover plate is pressed against the top of the sleeve through the annular rubber pad, the screw block 15 is clamped by a tool, and the screw is rotated. The screw moves downward to compress the rhombus rod. The rollers at both ends of the rhombus rod slide in the slide groove and push the two slide rods outward. The first sleeve is relatively fixed and positioned with the inner wall of the sleeve through the arc pressure plate. Then the second sleeve is put on, and the screw passes through the through hole. The second sleeve is pressed downward to make the rubber gasket 3 and the outer periphery of the sleeve 17 ground 18 or wall surface pressed and sealed (the ground or wall surface needs to be leveled if necessary). The compression nut is continued to be screwed so that the second sleeve is pressed against the ground or wall surface and firmly connected with the first sleeve. The present invention can prevent water from entering the inner wall of the sleeve or falling into debris through double protection, thereby preventing water seepage in the garage. By setting an overflow hole and a one-way valve, a third layer of protection can be provided. Even if water enters the device, it can be discharged through the overflow hole. This new type of plugging device not only improves the casing protection effect, but also has the characteristics of being easy to use, long-term turnover and reducing economic costs. It also avoids the defect of the existing plugging method that the materials used are not environmentally friendly.

Claims

1. A temporary casing plugging device, characterized by: It comprises a first sleeve for sealing the inside of the casing and a second sleeve for sealing the outside of the casing. The outer wall of the first sleeve is provided with an elastic rubber layer, and the elastic rubber layer is used to be sealed and connected with the inner wall of the casing. A cover plate is welded to the top of the first sleeve, and an annular rubber pad is provided on the edge of the lower surface of the cover plate, and the annular rubber pad is used to be pressed against the top of the casing. The second sleeve is sleeved outside the first sleeve and the casing, and is connected to the first sleeve through a screw. A rubber gasket is provided at the bottom end of the second sleeve, and the rubber gasket is used to be pressed and sealed against the ground or wall around the casing.

2. A casing temporary plugging device according to claim 1, characterized in that: The bottom end of the first sleeve is closed to form a bottom plate structure, and a diamond rod is provided at the upper end of the bottom plate structure. Sliding rods are provided on the side walls of the first sleeve corresponding to the left and right ends of the diamond rod. The sliding rod passes through the first sleeve and is slidably connected to the first sleeve. The outer end of the sliding rod is fixedly connected to an arc-shaped pressure plate. In the initial state, the arc-shaped pressure plate is embedded in the elastic rubber layer, and the inner end of the sliding rod is fixedly connected to a sliding groove. The left and right ends of the diamond rod are used in conjunction with the sliding groove.

3. A casing temporary plugging device as claimed in claim 2, characterized in that: The top end of the diamond rod is connected to the bottom end of the screw through a hinge seat. The screw passes through the center of the cover plate and is screwed to the cover plate. A through hole is opened at the top of the second sleeve corresponding to the screw. The part of the screw extending outward through the through hole is screwed with a locking nut.

4. A casing temporary plugging device as claimed in claim 3, characterized in that: The rhombus rod is composed of four rod bodies connected end to end, and the connecting parts of adjacent rod bodies are hinged. The ends of one rod body at the left and right ends of the rhombus rod are connected with rollers, and the rollers are slidably matched with the slide grooves.

5. A casing temporary plugging device as claimed in claim 4, characterized in that: The bottom end of the rhombus rod is fixedly connected to the bottom plate structure through the first hinge seat, the top end of the rhombus rod is connected to the bottom end of the screw rod through the second hinge seat, a thrust bearing is connected between the bottom end of the screw rod and the top end of the second hinge seat, and a screw block is provided at the top end of the screw rod.

6. A casing temporary plugging device as claimed in claim 5, characterized in that: An overflow hole is arranged on the upper part of the side wall of the second sleeve, and a one-way valve which only allows water to flow outward is arranged in the overflow hole.

7. A casing temporary plugging device as claimed in claim 6, characterized in that: When the device is installed on the ground, the height of the overflow hole is lower than the height of the top end of the sleeve; when the device is installed on the wall, the overflow hole is located at the lower side.

8. A casing temporary plugging device according to claim 7, characterized in that: A sliding hole is provided on the side wall of the first sleeve, the sliding rod is slidably connected to the sliding hole, a fixed block is fixedly connected to the inner end of the sliding rod, a sliding groove is provided on the inner surface of the fixed block, a return spring is sleeved on the outer periphery of the sliding rod between the fixed block and the inner port of the sliding hole, and two ends of the return spring are respectively fixedly connected to the fixed block and the inner wall of the first sleeve.

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