CN210396691U - High-pressure grouting hole sealing device - Google Patents
High-pressure grouting hole sealing device Download PDFInfo
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- CN210396691U CN210396691U CN201920233317.8U CN201920233317U CN210396691U CN 210396691 U CN210396691 U CN 210396691U CN 201920233317 U CN201920233317 U CN 201920233317U CN 210396691 U CN210396691 U CN 210396691U
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- pressure
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- hole sealing
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- inflation
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Abstract
The utility model belongs to the infrastructure field, concretely relates to high-pressure slip casting hole sealing device. The inflatable ring is characterized by comprising an injection pipe, wherein the injection pipe penetrates through a plurality of inflatable rings distributed at intervals in the longitudinal direction, and a plurality of locking ends are fixed on the outer side wall of the injection pipe at intervals, so that each inflated inflatable ring is clamped between the upper locking end and the lower locking end. The utility model discloses a high pressure slip casting hole sealing device, shutoff is effectual, and construction convenience. The inflatable ring is clamped on the side wall of the drilled hole after inflation, so that the pulling resistance of the grouting pipe is improved; the locking end is used for fixing the inflatable ring, so that the inflatable ring is prevented from sliding up and down, and the pulling resistance of the grouting pipe is further increased; the pulling resistance of the grouting pipe can be increased again by using the weight of the heavy object on the upper part of the pressure bearing end.
Description
Technical Field
The utility model belongs to the infrastructure field, concretely relates to high-pressure slip casting hole sealing device.
Background
The high-pressure grouting is a common engineering form in geotechnical engineering, and the method forcibly injects grout such as cement paste into existing drilled holes of a geotechnical body by using high pressure, and diffuses the grout into surrounding geotechnical bodies by using the permeability of the grout in the geotechnical bodies to play a role in reinforcing the geotechnical bodies, so that the strength of the geotechnical bodies can be improved, the permeability is reduced, the compressibility is reduced, and the like. In the construction, the foundation is drilled in advance, then the hole opening is plugged, and then high-pressure grouting is performed in the hole.
At present, the orifice is generally plugged by adopting cotton cloth or sponge and matching with cement paste, and the plugging effect of the method is general and is mostly based on engineering experience. When pressure is too high, plugging device became invalid easily, led to the slip casting failure.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in providing a high pressure slip casting hole sealing device, the shutoff is effectual, and construction convenience.
The utility model discloses a realize like this:
the utility model provides a high pressure slip casting hole sealing device, includes the slip casting pipe, the slip casting pipe is worn to locate a plurality of longitudinal interval distribution and is aerifyd the intra-annular, the interval is fixed with a plurality of locking end on the lateral wall of slip casting pipe, makes every aerify the equal block of ring of aerifing after aerifing between two upper and lower locking ends.
Further, the locking end is a steel ring.
Further, the inflation ring is made of elastic high-strength rubber.
Further, the inflation ring is connected with an inflation device through an inflation pipeline.
Furthermore, the upper part of the grouting pipe is fixedly sleeved with a pressure-bearing end on the outer side wall of the grouting pipe, and the diameter of the pressure-bearing end is larger than that of the drill hole.
Further, the bearing end is a steel ring.
The utility model has the advantages that:
1) the inflatable ring is clamped on the side wall of the drilled hole after inflation, so that the pulling resistance of the grouting pipe is improved;
2) the locking end is used for fixing the inflatable ring, so that the inflatable ring is prevented from sliding up and down, and the pulling resistance of the grouting pipe is further increased;
3) the pulling resistance of the grouting pipe can be increased again by using the weight of the heavy object on the upper part of the pressure bearing end.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
Referring to fig. 1, the high pressure grouting hole sealing device of the present invention includes an air-filling ring 1, a grouting pipe 2, a locking end 3 and a bearing end 4. The inflation ring 1 is made of elastic high-strength rubber, is annular and can bear 2-3 MPa of air pressure, the inner diameter is about 20mm when the inflation ring is not inflated, and the outer diameter is 40-60 mm. When the air pressure reaches 2MPa, the external diameter reaches 100-150 mm; the inflation ring 1 is connected with an inflation device (not shown) through an air pipe (not shown), the air pipe is a high-pressure inflation pipe which can bear high pressure and has the outer diameter of 5mm, and the air pipe is connected to the top of the inflation ring 1 and is used for inflating the inflation ring 1; the grouting pipe 2 is made of a steel pipe, the outer diameter of the grouting pipe is 15-20 mm, the grouting pipe penetrates through the ring inner part of the inflatable ring 1, and the inflatable rings 1 are sleeved on the outer side of the grouting pipe 2; the locking end 3 is a steel ring, the inner diameter of the locking end is equal to the outer diameter of the grouting pipe 2, the outer diameter of the locking end is 40-60 mm, the locking end 3 is welded on the outer side of the grouting pipe 2, and the locking end 3 is welded on the upper portion and the lower portion of each inflation ring 1 to limit the position of the inflation ring 1 after inflation; the bearing end 4 is welded on the upper part of the grouting pipe 2 and is a steel ring with the area larger than that of the locking end 3 and the drilled hole.
The following are used specifically:
certain place needs to carry out high-pressure slip casting and handles, adopts the utility model discloses a hole sealing device carries out the hole sealing. Firstly, placing a grouting pipe 2 with three inflation rings 1 into a drill hole, fixing a locking end 3 on each inflation ring 1, guiding a gas pipe to the ground along the hole wall, firstly, inflating the gas pipe into the lowermost inflation ring 1, stopping inflating when the gas pressure reaches 2.0MPa, and sealing the mouth of the gas pipe; then, inflating the middle inflating ring 1, wherein the method and the process are the same as those of the lowermost inflating ring, and thus, the uppermost inflating ring is filled with gas; and a heavy object is applied above the pressure bearing end 4, so that the pulling resistance of the grouting pipe 2 is improved.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (6)
1. The utility model provides a high pressure slip casting hole sealing device, includes the slip casting pipe, its characterized in that: the grouting pipe penetrates through a plurality of air inflation rings which are longitudinally distributed at intervals, and a plurality of locking ends are fixed on the outer side wall of the grouting pipe at intervals, so that each inflated air inflation ring is clamped between the upper locking end and the lower locking end.
2. The high-pressure grouting hole sealing device according to claim 1, characterized in that: the locking end is a steel ring.
3. The high-pressure grouting hole sealing device according to claim 1, characterized in that: the inflation ring is made of elastic high-strength rubber.
4. The high-pressure grouting hole sealing device according to claim 1, characterized in that: the inflation ring is connected with an inflation device through an inflation pipeline.
5. The high-pressure grouting hole sealing device according to claim 1, characterized in that: the upper part of the grouting pipe is fixedly sleeved with a pressure-bearing end on the outer side wall of the grouting pipe, and the diameter of the pressure-bearing end is larger than that of the drill hole.
6. The high-pressure grouting hole sealing device according to claim 5, characterized in that: the pressure-bearing end is a steel ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920233317.8U CN210396691U (en) | 2019-11-20 | 2019-11-20 | High-pressure grouting hole sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920233317.8U CN210396691U (en) | 2019-11-20 | 2019-11-20 | High-pressure grouting hole sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210396691U true CN210396691U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920233317.8U Active CN210396691U (en) | 2019-11-20 | 2019-11-20 | High-pressure grouting hole sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210396691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216157A (en) * | 2021-05-15 | 2021-08-06 | 湖南省筱沅水利水电建设有限公司 | Prefabricated tubular pile convenient to used repeatedly |
-
2019
- 2019-11-20 CN CN201920233317.8U patent/CN210396691U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216157A (en) * | 2021-05-15 | 2021-08-06 | 湖南省筱沅水利水电建设有限公司 | Prefabricated tubular pile convenient to used repeatedly |
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