CN205078226U - Sweep hole slip casting head - Google Patents
Sweep hole slip casting head Download PDFInfo
- Publication number
- CN205078226U CN205078226U CN201520897672.7U CN201520897672U CN205078226U CN 205078226 U CN205078226 U CN 205078226U CN 201520897672 U CN201520897672 U CN 201520897672U CN 205078226 U CN205078226 U CN 205078226U
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- apical pore
- casting head
- slip casting
- utility
- model
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Abstract
The utility model relates to a building field. A sweep hole slip casting head which the main points lie in that it is a tubular structure, there is the apical pore on the top for pointed cone shape, has a plurality of out grouting holes in the side surface design of managing, has a steel ball that is greater than the apical pore to be used for plugging up the apical pore. The utility model has the advantage of simple structure, since porous play thick liquid, it is difficult by stifled, little, the long service life of fault rate.
Description
Technical field
The utility model relates to building field, specifically a kind of cleaning bottom of hole tool for grouting in loose.
Background technology
In drill process, run into the construction problem that the pore-formings such as bit freezing, stick of tool, bury drills, the burning of bits are difficult, pore-forming is slow, all can use mortar depositing construction, with Reinforcing hole wall, reach the object of water blockoff.But existing tool for grouting in loose, the direct cut of many employings drilling rod, as shown in Figure 1, directly at drilling rod 7 bottom end opening, form breach 8, with the slip casting of drilling rod cut, if run into relatively large rubble in work progress, easily block in drilling rod indentation, there, cause bit freezing, if chance silt easily blocks up in indentation, there bore even bury drills, the burning of bits.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming that existing cleaning bottom of hole tool for grouting in loose exists, and provides that a kind of fault rate is little, the cleaning bottom of hole casting head of long service life.
The technical scheme that the utility model adopts is a kind of cleaning bottom of hole casting head, and its main points are that it is a tubular structure, and top is sharp cone distal, has apical pore, is designed with a plurality of slurry outlet at the side surface of pipe, has a steel ball being greater than apical pore for blocking apical pore.
Apical pore is less than more than internal diameter of tube body 3mm.
The utility model has the advantage of that structure is simple, owing to being porous pulp, be not easily blocked, fault rate is little, long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing tool for grouting in loose
Fig. 2 is structural representation of the present utility model
1 cleaning bottom of hole casting head 2 apical pore 3 slurry outlet 4 steel ball 7 drilling rod 8 breach.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further illustrated
As shown in Figure 1, a kind of cleaning bottom of hole casting head 1, it is a tubular structure, and top is sharp cone distal, has apical pore 2, is designed with a plurality of slurry outlet 3 at the side surface of pipe, has a steel ball 4 being greater than apical pore for blocking apical pore.The diameter of cleaning bottom of hole casting head is determined by boring aperture, its underpart is tapered and diminish gradually along direction, bottom, the concrete lower end outside of described Cementer is circumferentially evenly provided with multiple slurry outlet, and arrange circular hole bottom bullet, apical pore 2 is less than more than internal diameter of tube body 3mm.In use: in cleaning bottom of hole process, adopt water under high pressure not blocked to ensure the apical pore of cleaning bottom of hole casting head.Steel ball, to after needing slip casting position, is thrown in, is made it drop down onto apical pore 2 place, blocked, subsequently flushing test by cleaning bottom of hole in the middle of drilling rod.In the normal situation of water flowing, mortar depositing construction is carried out to its position.
Claims (2)
1. a cleaning bottom of hole casting head, it is characterized in that it is a tubular structure, top is sharp cone distal, has apical pore (2), is designed with a plurality of slurry outlet (3) at the side surface of pipe, has a steel ball (4) being greater than apical pore for blocking apical pore.
2. a kind of cleaning bottom of hole casting head according to claim 1, is characterized in that apical pore (2) is less than more than internal diameter of tube body 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520897672.7U CN205078226U (en) | 2015-11-12 | 2015-11-12 | Sweep hole slip casting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520897672.7U CN205078226U (en) | 2015-11-12 | 2015-11-12 | Sweep hole slip casting head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205078226U true CN205078226U (en) | 2016-03-09 |
Family
ID=55430640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520897672.7U Active CN205078226U (en) | 2015-11-12 | 2015-11-12 | Sweep hole slip casting head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205078226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847888A (en) * | 2019-11-12 | 2020-02-28 | 山东大学 | Auxiliary device and method for cross-hole resistivity CT detection of fractured rock mass |
-
2015
- 2015-11-12 CN CN201520897672.7U patent/CN205078226U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847888A (en) * | 2019-11-12 | 2020-02-28 | 山东大学 | Auxiliary device and method for cross-hole resistivity CT detection of fractured rock mass |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |