CN110318683B - Anti-blocking device for cement mixing pile drill bit guniting hole and using method thereof - Google Patents
Anti-blocking device for cement mixing pile drill bit guniting hole and using method thereof Download PDFInfo
- Publication number
- CN110318683B CN110318683B CN201810273605.6A CN201810273605A CN110318683B CN 110318683 B CN110318683 B CN 110318683B CN 201810273605 A CN201810273605 A CN 201810273605A CN 110318683 B CN110318683 B CN 110318683B
- Authority
- CN
- China
- Prior art keywords
- guniting
- drill bit
- hole
- bolt
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/61—Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to the field of drill bits for drilling soil layers or rocks, in particular to an anti-blocking device for a drill bit guniting hole of a cement mixing pile and a using method thereof. The utility model provides a cement mixing stake drill bit whitewashing hole anti-clogging device, includes tubular drill bit (1), characterized by: the mortar spraying bolt comprises a mortar spraying bolt (2), a nut (3) and a sealing washer (4), wherein a mortar outlet (23) is formed in a mortar spraying surface (21) of a screw rod of the mortar spraying bolt (2); a nut cap of the guniting bolt (2) is provided with a connecting hole (24); the guniting bolt (2) is sleeved in the guniting hole (11). The use method of the anti-blocking device for the guniting hole of the drill bit of the cement mixing pile is characterized by comprising the following steps of: the method is implemented in sequence according to the following steps: firstly, spraying slurry; and (9) sealing holes. The anti-blocking device is simple in structure, convenient to use, good in anti-blocking effect and wide in application range.
Description
Technical Field
The invention relates to the field of drill bits for drilling soil layers or rocks, in particular to an anti-blocking device for a drill bit guniting hole of a cement mixing pile and a using method thereof.
Background
The guniting hole of the drill bit of the traditional cement mixing pile machine is a common hole, and slurry or soil slag is easily extruded into the guniting hole due to soil pressure in the drilling process of the pile machine and the empty pile section due to no guniting, so that the guniting hole and even the whole drill rod are blocked; and in the construction process, intermittent guniting or construction interruption caused by power failure exists, so that when guniting is not performed, slurry and slurry residues flow back to block a guniting hole, and the problem of blocking of a drill bit and a drill bit rod is also caused. In the traditional construction, in order to solve the problem of blockage, high-pressure washing is generally adopted, pile foundation construction is carried out again after repeated dredging, the construction period is delayed, and the pile forming quality is also influenced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides drilling equipment which is simple in structure, convenient to use, good in anti-blocking effect and wide in application range, and discloses an anti-blocking device for a drill bit grout spraying hole of a cement mixing pile and a using method of the anti-blocking device.
The invention achieves the purpose by the following technical scheme:
the utility model provides a cement mixing stake drill bit whitewashing hole anti-clogging device, includes the tubular drill bit, opens on the lateral wall of drill bit have with the whitewashing hole that the drill bit inner chamber link up, characterized by: also comprises a guniting bolt, a nut and a sealing washer,
the outer diameter of the guniting bolt screw is matched with the aperture of the guniting hole, the guniting bolt screw is provided with a guniting surface without external threads and a thread surface with the external threads in sequence from the inner end of the connecting nut to the outer end departing from the nut, and the width of the guniting surface is greater than the wall thickness of the drill bit;
the pulp spraying surface is provided with pulp outlet holes, the central axis of each pulp outlet hole is arranged along the radial direction of the pulp spraying surface, the pulp outlet holes are arranged into at least two circles around the circumferential direction of the pulp spraying surface, and each circle comprises at least six pulp outlet holes;
the nut of the guniting bolt is provided with a connecting hole which is a blind hole, and the connecting hole is communicated with each grout outlet hole;
the guniting bolt sleeve is arranged in the guniting hole, the nut of the guniting bolt is arranged in the inner cavity of the drill bit, the outer end of the guniting bolt screw is arranged outside the outer side wall of the drill bit, the nut is screwed at the outer end of the guniting bolt screw, and a sealing washer is lined between the nut and the outer side wall of the drill bit.
Cement mixing stake drill bit whitewashing hole anti-clogging device, characterized by: the connecting line connecting the guniting holes from one end of the drill bit to the other end forms at least one spiral line coiled on the outer side surface of the drill bit.
The use method of the anti-blocking device for the guniting hole of the drill bit of the cement mixing pile is characterized by comprising the following steps of: the method is implemented in sequence according to the following steps:
slurry spraying: when the drill bit operates for guniting, slurry in the inner cavity of the drill bit generates pressure on the guniting bolt from the inner cavity of the drill bit to the outer side wall of the drill bit, the guniting bolt is outwards popped out to enable a nut of the guniting bolt to abut against the inner side wall of the inner cavity of the drill bit around the guniting hole, and the slurry flows through the inner cavity of the drill bit, the connecting hole, the slurry outlet hole and the guniting hole in sequence and is discharged out;
sealing holes: when the drill bit stops running and does not spray, the soil outside the drill bit generates a pressure from the outer side wall of the drill bit to the inner cavity of the drill bit on the guniting bolt, the guniting bolt retracts inwards to enable the nut and the sealing washer to abut against the outer side wall of the drill bit around the guniting hole, and the guniting hole is sealed and does not discharge any more slurry.
The invention effectively solves the problem of blockage of the grout spraying hole in the cement stirring construction process, has simple structure and convenient operation, realizes full-automatic blockage prevention, is economic to put into use, can be widely popularized and applied, greatly saves invalid construction time caused by mud hole blockage, shortens construction period and improves working efficiency.
The advantages or positive effects of the technology of the present application compared to the prior art
1. The principle is simple, the full-automatic anti-blocking effect is achieved, and the effect is obvious;
2. the problem of hole plugging of the cement mixing pile is fundamentally solved;
3. the pile head is suitable for various cement mixing pile heads, and has wide applicability and strong popularization;
4. the investment is economic, and the brought benefits are obvious;
5. the invalid construction time caused by mud hole plugging is greatly saved, the construction period is shortened, and the work efficiency is improved.
6. The resource waste of high-pressure flushing during blockage and pile driving after repeated dredging is avoided, and the manufacturing cost is greatly saved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic cross-sectional view of a drill bit at a hole for injecting grout in the present invention;
fig. 3 is a schematic structural view of a guniting bolt, a nut and a sealing washer according to the invention.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
The utility model provides a cement mixing stake drill bit whitewashing hole anti-clogging device, includes drill bit 1, whitewashing bolt 2, nut 3 and seal ring 4, as shown in fig. 1-3, concrete structure is:
the drill bit 1 is tubular, and the outer side wall of the drill bit 1 is provided with a guniting hole 11 communicated with the inner cavity of the drill bit 1;
the outer diameter of the screw rod of the guniting bolt 2 is matched with the aperture of the guniting hole 11, the screw rod of the guniting bolt 2 is provided with a guniting surface 21 without external threads and a thread surface 22 with the external threads in sequence from the inner end of the connecting nut to the outer end departing from the nut, and the width of the guniting surface 21 is larger than the wall thickness of the drill bit 1;
the pulp spraying surface 21 is provided with pulp outlet holes 23 with the diameter of 5mm, the central axes of the pulp outlet holes 23 are arranged along the radial direction of the pulp spraying surface 21, the pulp outlet holes 23 are arranged into two circles around the circumferential direction of the pulp spraying surface 21, and each circle comprises ten pulp outlet holes 23 which are uniformly distributed around the pulp spraying surface 21;
the nut of the guniting bolt 2 is provided with a connecting hole 24, the connecting hole 24 is a blind hole, and the connecting hole 24 is respectively communicated with each grout outlet hole 23;
the guniting bolt 2 is sleeved in the guniting hole 11, a nut of the guniting bolt 2 is arranged in an inner cavity of the drill bit 1, an outer end of a screw of the guniting bolt 3 is arranged outside an outer side wall of the drill bit 1, the nut 3 is screwed at an outer end of the screw of the guniting bolt 2, and a sealing washer 4 is lined between the nut 3 and the outer side wall of the drill bit 1.
In this embodiment: the connecting lines connecting the respective shotcrete holes 11 from one end of the drill bit 1 to the other end constitute a spiral line wound around the outer side surface of the drill bit 1, and may also constitute two or more spiral lines.
When the method is used, the steps are implemented in sequence as follows:
slurry spraying: when the drill bit 1 operates for guniting, mud in the inner cavity of the drill bit 1 generates pressure on the guniting bolt 2 from the inner cavity of the drill bit 1 to the outer side wall of the drill bit 1, the guniting bolt 2 is outwards popped out to enable the screw cap of the guniting bolt 2 to abut against the inner side wall of the inner cavity of the drill bit 1 around the guniting hole 11, and the mud sequentially flows through the inner cavity of the drill bit 1, the connecting hole 24, the mud outlet hole 23 and the guniting hole 11 and is discharged;
sealing holes: when the drill bit 1 is stopped and does not spray, the soil outside the drill bit 1 generates pressure from the outer side wall of the drill bit 1 to the inner cavity of the drill bit 1 to the guniting bolt 2, the guniting bolt 2 retracts inwards to enable the nut 3 and the sealing washer 4 to abut against the outer side wall of the drill bit 1 around the guniting hole 11, and the guniting hole 11 is sealed to prevent mud from being discharged.
Claims (2)
1. The utility model provides a cement mixing stake drill bit whitewashing hole anti-clogging device, includes tubular drill bit (1), opens on the lateral wall of drill bit (1) have with drill bit (1) inner chamber link up whitewashing hole (11), characterized by: also comprises a guniting bolt (2), a nut (3) and a sealing washer (4),
the outer diameter of a screw rod of the guniting bolt (2) is matched with the aperture of the guniting hole (11), the screw rod of the guniting bolt (2) is provided with a guniting surface (21) without external threads and a thread surface (22) with the external threads in sequence from the inner end of the connecting nut to the outer end departing from the nut, and the width of the guniting surface (21) is greater than the wall thickness of the drill bit (1);
the pulp spraying surface (21) is provided with pulp outlet holes (23), the central axis of each pulp outlet hole (23) is arranged along the radial direction of the pulp spraying surface (21), the pulp outlet holes (23) are arranged into at least two circles around the circumferential direction of the pulp spraying surface (21), and each circle comprises at least six pulp outlet holes (23);
a nut of the guniting bolt (2) is provided with a connecting hole (24), the connecting hole (24) is a blind hole, and the connecting hole (24) is communicated with each grout outlet hole (23);
the guniting bolt (2) is sleeved in the guniting hole (11), a nut of the guniting bolt (2) is arranged in an inner cavity of the drill bit (1), the outer end of a screw rod of the guniting bolt (2) is arranged outside the outer side wall of the drill bit (1), a nut (3) is screwed at the outer end of the screw rod of the guniting bolt (2), and a sealing gasket (4) is lined between the nut (3) and the outer side wall of the drill bit (1);
the connecting line connecting each guniting hole (11) from one end of the drill bit (1) to the other end forms at least one spiral line coiled on the outer side surface of the drill bit (1).
2. The use method of the anti-blocking device for the shotcrete hole of the cement mixing pile drill bit as recited in claim 1, is characterized in that: the method is implemented in sequence according to the following steps:
slurry spraying: when the drill bit (1) runs for guniting, slurry in the inner cavity of the drill bit (1) generates pressure on the guniting bolt (2) from the inner cavity of the drill bit (1) to the outer side wall of the drill bit (1), the guniting bolt (2) is outwards popped out to enable the screw cap of the guniting bolt (2) to abut against the inner side wall of the inner cavity of the drill bit (1) around the guniting hole (11), and the slurry sequentially flows through the inner cavity of the drill bit (1), the connecting hole (24), the slurry outlet hole (23) and the guniting hole (11) and is discharged out of the drill bit (;
sealing holes: when the drill bit (1) is stopped and is not guniting, soil outside the drill bit (1) generates pressure from the outer side wall of the drill bit (1) to the inner cavity of the drill bit (1) to the guniting bolt (2), the guniting bolt (2) retracts inwards to enable the nut (3) and the sealing washer (4) to abut against the outer side wall of the drill bit (1) around the guniting hole (11), and the guniting hole (11) is sealed to prevent mud from being discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810273605.6A CN110318683B (en) | 2018-03-29 | 2018-03-29 | Anti-blocking device for cement mixing pile drill bit guniting hole and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810273605.6A CN110318683B (en) | 2018-03-29 | 2018-03-29 | Anti-blocking device for cement mixing pile drill bit guniting hole and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110318683A CN110318683A (en) | 2019-10-11 |
| CN110318683B true CN110318683B (en) | 2021-03-26 |
Family
ID=68111048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810273605.6A Active CN110318683B (en) | 2018-03-29 | 2018-03-29 | Anti-blocking device for cement mixing pile drill bit guniting hole and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110318683B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2438395B (en) * | 2006-05-26 | 2010-02-24 | John Merlin Copplestone-Bruce | Liquid dispenser |
| DE202007012817U1 (en) * | 2007-09-13 | 2007-12-20 | Siemens & Co. Heilwasser Und Quellenprodukte Des Staatsbades Bad Ems Gmbh & Co. Kg | Check valve for a nasal douche |
| CN201865113U (en) * | 2010-11-26 | 2011-06-15 | 湖北地矿建设工程承包集团有限公司 | Automatic check valve type pressure grouting device |
| CN205712134U (en) * | 2016-06-23 | 2016-11-23 | 南京中艺建筑设计院股份有限公司 | Soil nailing |
| KR101897651B1 (en) * | 2016-07-19 | 2018-09-12 | 주식회사 스탠드팩 | Air valve for vinyl pack |
| CN206090655U (en) * | 2016-09-30 | 2017-04-12 | 上海岩土工程勘察设计研究院有限公司 | Injected hole block structure |
| CN206581254U (en) * | 2016-11-16 | 2017-10-24 | 上海市建工设计研究总院有限公司 | Grouting device and bottom-enlarging prefabricated pile tube |
| CN206902717U (en) * | 2017-05-09 | 2018-01-19 | 深圳市蛇口招商港湾工程有限公司 | A kind of Grouting Pipe for foundation engineering |
-
2018
- 2018-03-29 CN CN201810273605.6A patent/CN110318683B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110318683A (en) | 2019-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110130326B (en) | High-pressure jet grouting pile construction method for building application | |
| CN101251018B (en) | Subsection retrusive slip-casting method for porthole slurry-stop mixed double-pipe | |
| WO2020000914A1 (en) | Reverse rotation water spray type anti-jamming drill pipe system and usage method therefor | |
| CN102720461B (en) | Grout stopping method and grout stopping device for hydraulic drill jumbo | |
| CN107288671A (en) | Reinforcing soft broken coal rock body bores the integrated extensible anchor pole of envelope note and its construction method | |
| CN104314587A (en) | Targeted domain-control grouting device and grouting process | |
| CN105041218B (en) | A kind of anti-collapse two-way rib winged injection grouting drill bit and its application method | |
| CN210031786U (en) | Large-diameter rock drilling and filling device | |
| CN110130325B (en) | Construction method for rock drilling and grouting | |
| CN110318683B (en) | Anti-blocking device for cement mixing pile drill bit guniting hole and using method thereof | |
| CN210049233U (en) | Construction equipment based on high-pressure jet grouting pile application | |
| CN208918491U (en) | A kind of reversed hole flushing device for geologic cavitiy construction | |
| CN213061989U (en) | High-pressure rotary spraying device | |
| CN210315529U (en) | Self-drilling high-pressure rotary-jetting bag grouting expanding anti-floating anchor rod | |
| CN110821417B (en) | High-toughness outer flat drill rod | |
| CN209837006U (en) | Rotary-spraying grouting rotary-digging construction system | |
| CN113653511B (en) | Shield tunnel joint plugging grouting method | |
| CN115030147B (en) | Stirring pile up-down guniting conversion mechanism and construction method | |
| CN215761703U (en) | Rich water tunnel tubular prestressing force concreties cementer | |
| CN214194502U (en) | Anti-blocking air injection device for cement mixing pile | |
| CN211397479U (en) | High-toughness outer flat drill rod | |
| CN204152525U (en) | Fixed point control territory grouting device | |
| CN218437006U (en) | Self-drilling high-pressure jet grouting pile | |
| CN113027487A (en) | Rich water tunnel tubular prestressing force concreties cementer | |
| CN218816404U (en) | Cleaning device for outer surface of shield shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |