CN203547532U - Drill tool with protective device - Google Patents
Drill tool with protective device Download PDFInfo
- Publication number
- CN203547532U CN203547532U CN201320578960.7U CN201320578960U CN203547532U CN 203547532 U CN203547532 U CN 203547532U CN 201320578960 U CN201320578960 U CN 201320578960U CN 203547532 U CN203547532 U CN 203547532U
- Authority
- CN
- China
- Prior art keywords
- drill
- sleeve pipe
- drilling rod
- bushing
- drill pipe
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model provides a drill tool with a protective device. The drill tool comprises a drill machine, a drill pipe, a bushing and a drill bit. The tail of the drill pipe is connected with the drill machine, the drill bit is arranged at the front end of the drill pipe and is positioned in an underground guide hole, the drill pipe is positioned in the bushing, the lower end of the bushing is fixed to the ground, and the inner diameter of the bushing is larger than the outer diameter of the drill pipe. The drill tool has the advantages that the bushing is sleeved on the outside of the drill pipe, the drill pipe only can deform in a limited space between the bushing and the drill pipe even if the drill pipe elastically deforms, accordingly, deformation of the drill pipe due to soft soil and suspended sections can be effectively prevented by the bushing, and the drill tool is quite convenient to use.
Description
Technical field
The utility model belongs to Directional Drilling for Pipeline Crossing field, especially relates to a kind of drilling tool with protective device.
Background technology
Length is at more than 1000 meters Directional Drilling for Pipeline Crossings, larger for underground pilot hole difficulty of construction, especially length lengthens rig thrust later can increase, the thrust that drilling rod bears also will increase, rig buries end due to unsettled section between the more soft rig of geology and ground, drilling rod can not be by the effective prevention and control in stratum, thus drilling rod can be in stratum after being subject to thrust large or unsettled section easily there is deformation and cause drilling rod to become curved.
Summary of the invention
The purpose of this utility model is to provide a kind of sleeve pipe of protection drilling rod simple to operate, easy to use, is especially applicable to the directional traversing engineering of long distance.
The technical solution of the utility model is: a kind of drilling tool with protective device; comprise rig, drilling rod, sleeve pipe, drill bit; described drilling rod afterbody is connected with rig; drilling rod front end is with drill bit; described drill bit is positioned at underground pilot hole; described sleeve pipe is positioned at drilling rod periphery, and sleeve pipe lower end is fixed on ground, and the internal diameter of sleeve pipe is greater than the external diameter of drilling rod.
Further, described sleeve pipe is steel pipe.
Further, the mode that sleeve pipe fixes on the ground is that deep embeded type or piling are fixing.
Advantage and the good effect that the utlity model has are: owing to adopting casing pipe sleeve in drilling rod outside, even if drilling rod generation elastic deformation is also, in the confined space between sleeve pipe and drilling rod, deformation occurs like this.Therefore sleeve pipe can effectively be avoided, because of soft and unsettled section of drilling rod generation deformation of geology, using convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is sectional view of the present utility model
In figure:
1, rig 2, drilling rod 3, sleeve pipe
4, drill bit 5, underground pilot hole
The specific embodiment
As shown in Figure 1, 2,
The technical scheme of the utility model utility model is: a kind of drilling tool with protective device; comprise rig 1, drilling rod 2, sleeve pipe 3, drill bit 4; described drilling rod afterbody is connected with rig; drilling rod 2 front ends are with drill bit 4; described drill bit 4 is positioned at underground pilot hole 5; within drilling rod 2 is positioned at sleeve pipe 3, described sleeve pipe 3 lower ends are fixed on ground, and the internal diameter of sleeve pipe 3 is greater than the external diameter of drilling rod 2.The boring route of described underground pilot hole 5 for setting.
In the present embodiment, described sleeve pipe 3 is steel pipe, and the mode that sleeve pipe 3 fixes on the ground is that deep embeded type or piling are fixing.
The course of work of this example: first that the lower end of sleeve pipe 3 is buried in ground, then the upper end threading 3 from sleeve pipe 3 by drilling rod 2, the afterbody of drilling rod 2 is fixedly connected with rig 1, and the front end of drilling rod 2 is installed to drill bit 4, start rig 1, drilling rod 2 creeps into along underground pilot hole 5 under the drive of drill bit 4.Have sleeve pipe 3 protection due to unsettled section between drilling rod 2 and ground, sleeve pipe 3 is not easy flexural deformation, has effectively improved the efficiency of creeping into.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (3)
1. the drilling tool with protective device; comprise rig, drilling rod, sleeve pipe, drill bit; described drilling rod afterbody is connected with rig; drilling rod front end is with drill bit; described drill bit is positioned at underground pilot hole; it is characterized in that: described sleeve pipe is positioned at drilling rod periphery, sleeve pipe lower end is fixed on ground, and the internal diameter of sleeve pipe is greater than the external diameter of drilling rod.
2. a kind of drilling tool with protective device according to claim 1, is characterized in that: sleeve pipe is steel pipe.
3. a kind of drilling tool with protective device according to claim 1, is characterized in that: the mode that sleeve pipe fixes on the ground is that deep embeded type or piling are fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320578960.7U CN203547532U (en) | 2013-09-18 | 2013-09-18 | Drill tool with protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320578960.7U CN203547532U (en) | 2013-09-18 | 2013-09-18 | Drill tool with protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547532U true CN203547532U (en) | 2014-04-16 |
Family
ID=50465661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320578960.7U Expired - Fee Related CN203547532U (en) | 2013-09-18 | 2013-09-18 | Drill tool with protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485920A (en) * | 2018-05-15 | 2019-11-22 | 长江岩土工程总公司（武汉） | Inverted vertical hole aperture degree control method |
-
2013
- 2013-09-18 CN CN201320578960.7U patent/CN203547532U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485920A (en) * | 2018-05-15 | 2019-11-22 | 长江岩土工程总公司（武汉） | Inverted vertical hole aperture degree control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202360120U (en) | Continuous resistance-increasing deformation anchor rod and continuous resistance-increasing deformation anchor cable | |
| CN1982651A (en) | Method for mining ultra-long roofbolt slip casting with top plate large-area and long-time exposed under mining well | |
| CN105201494A (en) | Method for performing ground stress test by using complete equipment | |
| CN203547532U (en) | Drill tool with protective device | |
| CN202659146U (en) | Double-drilling combined drill structure suitable for drilling operation of oil well and horizontal well | |
| CN203515558U (en) | Deep well water source well water level monitoring process pipe column | |
| CN110984878B (en) | Rope coring drilling device for urban deep-buried tunnel exploration hole | |
| CN204457466U (en) | Colliery geologic drilling rod | |
| CN102434179A (en) | Deformation anchor cable capable of increasing resistance continuously | |
| CN205049135U (en) | Solve inclinometer card gauge head unit | |
| CN204532329U (en) | Borehole accuracy precise control device | |
| CN203412596U (en) | Grouting device and grouting pipe for deep rock tunnel | |
| CN203834531U (en) | Novel exploitation shovel | |
| CN104314463A (en) | Earth drill for tubular pile | |
| CN203257330U (en) | Horizontal section suspended sidetrack drilling tool | |
| CN203569565U (en) | Anti-vibration foundation spiral ground pile | |
| CN203097716U (en) | Combined drill column device for drilling of directional well | |
| CN104131782B (en) | A kind of drifting Bottom Hole Assembly (BHA) defining method | |
| CN103441463A (en) | Long-distance cluster PE pipeline non-excavation crossing method | |
| CN204152425U (en) | A kind of pile tube land used rig | |
| CN208650820U (en) | A kind of lithosphere Directional Drilling returns and drags guide device | |
| CN204476248U (en) | A kind of jumbo take over a business mechanism | |
| CN103758451A (en) | Gyrator power head with buffer device | |
| CN209724253U (en) | A kind of anti-collapse hole Double-sleeve protective device of high pressure jet grouting | |
| WO2011100966A3 (en) | Method and device for direction-controlled drilling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20180918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |