CN103993835A - Special drill bit for underground pipeline exploration - Google Patents
Special drill bit for underground pipeline exploration Download PDFInfo
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- CN103993835A CN103993835A CN201410237250.7A CN201410237250A CN103993835A CN 103993835 A CN103993835 A CN 103993835A CN 201410237250 A CN201410237250 A CN 201410237250A CN 103993835 A CN103993835 A CN 103993835A
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- drill bit
- drill
- bit body
- underground utilities
- drill body
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Abstract
The invention discloses a special drill bit for underground pipeline exploration. The special drill bit for underground pipeline exploration comprises a drill bit body, wherein the drill bit body is cylindrical, a connecting part matched with a drill stem of a drilling rig is arranged on the upper portion of the drill bit body, and the lower end of the drill bit body is planar. A water jetting hole is formed in the center of the drill bit body, a water drainage groove is vertically formed in the outer wall of the drill bit body, a water guide groove corresponding to the water drainage groove is formed in the bottom face of the drill bit body, the inner side of the water guide groove is communicated with the water jetting hole, and the outer side of the water guide groove is communicated with the water drainage groove. The special drill bit for underground pipeline exploration has the advantages that because the drill bit body is cylindrical, and the lower end of the drill bit body is of a planar structure, the requirement for cutting soft soil and medium-hardness soil and the backfill requirement can be met, but hard components such as a metal pipeline will not be cut; when the drill bit encounters a hard component, the drill bit can only feed back hole bottom information to the ground surface but cannot cut the hard object, and thus damage to underground pipelines can be effectively avoided. The drill bit body is formed by machining ABS hard plastics, and the special drill bit for underground pipeline exploration is simple in structure, convenient to manufacture, safe in use and low in cost.
Description
Technical field
The present invention relates to a kind of underground utilities exploration technique field, specifically a kind of underground utilities are reconnoitred target drill.
Background technology
It is for underground pipelines attribute and locus definitely and the technological means of implementing that underground utilities are reconnoitred, and comprises two substances of mapping with underground utilities of detecting of underground utilities.It is by field investigation and detection that underground utilities are detected, understand burial place, the depth of burying and the association attributes of underground utilities, find out plan-position, trend, buried depth (or elevation), specification, character, the material of underground utilities, draw buried pipe line chart, and set up on the ground the mark of statement pipeline space characteristics.
At present Electromagnetic Survey of Underground Pipelines method mainly comprises two large classes: one, geophysical prospecting method, two, engineering drilling method.Wherein, geophysical prospecting method can comprise again (1) electromagnetic method, (2) DC electrical method, (3) magnetic method, (4) seismic wave method, (5) infrared radiation method.But geophysical prospecting method is to take single straight pipe-line to determine as model, and positioning precision and the scope of application are very restricted.
When underground utilities are buried complexity underground, during demand hi-Fix, adopt engineering drilling method the most accurately and reliably.Existing engineering drilling drill bit, adopts high-quality steel to be processed into bit body, and bit body bottom tungsten carbide button or diamond are as cutting edge.
Existing project auger, in engineering geological drilling, can drill hard stratum and rock, and the object that reaches pore-forming or get core is the important tool of geotechnical investigation industry.Engineering geologic investigation drill bit, because get core requirement, is made thin drilling bit mostly in structure.The drill bit that the external diameter of take is 110mm is example, and its wall thickness is generally 5mm to 10mm, hollow.
Now, China is just locating the large-scaled construction period, and house, bridge, urban road, high ferro, subway etc. all need construction plant and periphery underground utilities to implement careful prospecting.Especially city, underground utilities facility is intricate, and paving cloth compares comparatively dense, reconnoitre and can not have mishap, otherwise may damage the water of provided underground, gas, oil-piping or electric wire, the network facilities, thereby cause heavy losses can to country, society and the people, sometimes even can lead to major accident.Underground utilities are reconnoitred, and object is exactly for the locus of underground pipelines definitely.When existing project auger creeps into, often can be because drilling process data be inaccurate, constructor lacks experience or estimate deficiency and cause the destruction to pipeline, existing project auger can not adapt to underground utilities and reconnoitre.
Summary of the invention
The present invention's object is to make up above-mentioned deficiency, discloses a kind of simple in structurely to society, uses safety, and the underground utilities that can not damage pipeline are reconnoitred target drill.
Technical scheme of the present invention is achieved in that
Underground utilities are reconnoitred a target drill, comprise drill body, it is characterized in that: described drill body is column type, and its top arranges the connecting portion suitable with borer drill rod, and it is one plane that its lower end is; The center of described drill body offers a jetting hole, the outer wall of described drill body vertically offers rhone, its bottom surface offers the gutter corresponding with described rhone, and the inner side of described gutter is connected with described jetting hole, and its outside is connected with described rhone.
The measure of further optimizing the technical program is:
The middle part, lower end of described drill body is provided with smooth cushion chamber, and described cushion chamber is big top and small bottom flared structure.
The number of described rhone is two, and described two rhones are symmetricly set on the outer wall of described drill body; Accordingly, the number of described gutter is also two.
The wall thickness of described drill body is more than or equal to 30mm.The diameter in described jetting hole is less than or equal to 45mm.The suitable connecting portion of described and borer drill rod is the external screw thread that drill body top arranges.
Described external screw thread is trapezoidal thread.
Described target drill body is made by ABS rigid plastics.
The present invention's advantage is compared with prior art:
Described drill body is column type, its top arranges the connecting portion suitable with borer drill rod, and it is one plane that its lower end is, when drill bit runs into rigid component, only information at the bottom of hole can be fed back to earth's surface but can not cut hard thing, can effectively avoid the infringement of underground utilities.
The center of described drill body offers jetting hole, the outer wall of described drill body vertically offers rhone, its bottom surface offers the gutter corresponding with described rhone, and the inner side of described gutter is connected with described jetting hole, and its outside is connected with described rhone.Jetting hole is for the injection of flushing liquor, and the setting of gutter and rhone can guarantee that flushing liquor circulation is unimpeded and avoid suppressing pump.
Drill body adopts ABS rigid plastics to process, simple in structure, easy to make, with low cost, can meet cutting weak soil and middle pan soil, the requirement of banketing, the normal drilling and forming hole of energy in weak soil or medium hardness cohesive soil, but can not cause damage to rigid component such as metal pipe lines.
The diameter in jetting hole is less than or equal to 45mm, is far smaller than the internal diameter of existing drill bit, adopts the jetting hole of minor diameter, can guarantee that flushing liquor injects from jetting hole high-voltage high-speed, guarantees sediment at the bottom of timely cleaning hole, does not repeat fragmentation; In the situation that drill body external diameter is certain, jetting bore dia is less, and its wall thickness will be thicker, adopts the jetting hole of minor diameter can not only guarantee that flushing liquor injects fast from jetting hole, guarantee the wall thickness of drill body simultaneously, thereby guaranteed the Rigidity and strength of drill body.
In addition, external screw thread is trapezoidal thread, and trapezoidal thread stress-bearing capability is strong, guarantees the reliability being connected between drill body and borer drill rod.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is that Fig. 2 is upward view;
Fig. 4 is the sectional view of Fig. 3 A-A.
The specific embodiment
In accompanying drawing of the present invention, the title of each Reference numeral is:
Diameter D, wall thickness H, drill body 1, external screw thread 11, jetting hole 12, gutter 13, rhone 14, cushion chamber 15.
Below in conjunction with accompanying drawing, the present invention is described in further detail:
As shown in Figures 1 to 4, a kind of underground utilities are reconnoitred target drill, comprise drill body 1, and described drill body 1 is column type, and its top arranges the connecting portion 11 suitable with borer drill rod, and it is one plane that its lower end is; The center of described drill body 1 has a jetting hole 12, the outer wall of described drill body 1 vertically offers rhone 14, its bottom surface offers the gutter 13 corresponding with described rhone 14 quantity, the inner side of described gutter 13 is connected with described jetting hole 12, and its outside is connected with described rhone 14.
Described target drill body 1 is made by ABS rigid plastics.
The middle part, lower end of described drill body 1 is provided with smooth cushion chamber 15, and described cushion chamber 15 is big top and small bottom flared structure.
The effect in jetting hole 12 is in reconnoitring boring procedure, to inject flushing liquor, and the effect of gutter 13 and rhone 14 is that the flushing liquor of injection is discharged in time, and jetting hole 12, gutter 13 and rhone 14 are connected to form the circulation canal of flushing liquor.Reconnoitre in boring procedure and can produce a large amount of native slags in the bottom of drill bit, the native slag that flushing liquor can cause boring in cyclic process is taken out of, and the cushion chamber 15 of flared structure can give native slag and flushing liquor with enough bufferings, avoid stopping up, suppress carrying out smoothly that the phenomenon impacts such as pump reconnoitre.
In the present embodiment, the number of described rhone 14 is two, and the rhone 14 described in two is symmetricly set on the outer wall of described drill body 1, and accordingly, the number of described gutter 13 is also two.
The suitable connecting portion of described and borer drill rod is the external screw thread 11 that drill body top arranges.Described external screw thread 11 is trapezoidal thread.
The wall thickness H of described drill body 1 is 30mm.
The diameter D in described jetting hole 12 is 45mm.
The diameter D in jetting hole 12 is 45mm, is far smaller than the jetting bore dia of existing drill bit, adopts the jetting hole 12 of minor diameter, and when flushing liquor injects, speed is fast, pressure is large, can guarantee sediment at the bottom of timely cleaning hole, does not repeat fragmentation; Meanwhile, at drill body 1 external diameter, certain in the situation that, the diameter D in jetting hole 12 is less, and its wall thickness H is just thicker, adopts the jetting hole 12 of minor diameter to guarantee the wall thickness H of drill body 1, thereby has guaranteed the Rigidity and strength of drill body 1.The drill bit that the external diameter of take is equally 110mm is example, and when the diameter D in its jetting hole 12 is 40mm, its wall thickness H is 35mm, and the wall thickness of existing drill bit is generally 5mm to 10mm, and the diameter in jetting hole is 90mm to 100mm; Both compare, and underground utilities of the present invention are reconnoitred the wall thickness H of target drill much larger than the wall thickness of existing drill bit, the diameter D in jetting hole 12 much smaller than existing drill bit diameter.
Described external screw thread 11 is trapezoidal thread; Trapezoidal thread stress-bearing capability is strong, guarantees the reliability that is connected between drill body 1 and borer drill rod also to make drill body 1 can bear larger power.
Underground utilities of the present invention are reconnoitred target drill, its drill body 1 adopts ABS rigid plastics to process, low cost of manufacture, and lower end is plane structure, cutting force is limited, can meet cutting weak soil and middle pan soil, the requirement of banketing, the normal drilling and forming hole of energy in weak soil or medium hardness cohesive soil, but be difficult to the rigid component such as cutting metal pipeline, when drill bit runs into rigid component, only information at the bottom of hole can be fed back to earth's surface but can not cut hard thing, can effectively avoid the injury to underground utilities, operating efficiency in the time of can effectively improving underground utilities and reconnoitre and the safety while guaranteeing to reconnoitre.
Claims (8)
1. underground utilities are reconnoitred a target drill, comprise drill body (1), it is characterized in that: described drill body (1) is column type, and its top arranges the connecting portion (11) suitable with borer drill rod, and it is one plane that its lower end is; The center of described drill body (1) offers a jetting hole (12), the outer wall of described drill body (1) vertically offers rhone (14), its bottom surface offers the gutter (13) corresponding with described rhone (14), the inner side of described gutter (13) is connected with described jetting hole (12), and its outside is connected with described rhone (14).
2. a kind of underground utilities according to claim 1 are reconnoitred target drill, it is characterized in that: the middle part, lower end of described drill body (1) is provided with smooth cushion chamber (15), and described cushion chamber (15) is big top and small bottom flared structure.
3. a kind of underground utilities according to claim 2 are reconnoitred target drill, it is characterized in that: the number of described rhone (14) is two, and described two rhones (14) are symmetricly set on the outer wall of described drill body (1); Accordingly, the number of described gutter (13) is also two.
4. a kind of underground utilities according to claim 3 are reconnoitred target drill, it is characterized in that: wall thickness (the H) >=30mm of described drill body (1).
5. a kind of underground utilities according to claim 4 are reconnoitred target drill, it is characterized in that: diameter (the D)≤45mm in described jetting hole (12).
6. a kind of underground utilities according to claim 5 are reconnoitred target drill, it is characterized in that: the suitable connecting portion of described and borer drill rod is external screw thread (11).
7. a kind of underground utilities according to claim 6 are reconnoitred target drill, it is characterized in that: described external screw thread (11) is trapezoidal thread.
8. according to the underground utilities described in the arbitrary claim of claim 1-7, reconnoitre target drill, it is characterized in that: described target drill body (1) is made by ABS rigid plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410237250.7A CN103993835B (en) | 2014-05-30 | 2014-05-30 | A kind of underground utilities reconnoitre target drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410237250.7A CN103993835B (en) | 2014-05-30 | 2014-05-30 | A kind of underground utilities reconnoitre target drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103993835A true CN103993835A (en) | 2014-08-20 |
| CN103993835B CN103993835B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410237250.7A Active CN103993835B (en) | 2014-05-30 | 2014-05-30 | A kind of underground utilities reconnoitre target drill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355183A (en) * | 2017-07-25 | 2017-11-17 | 中国铁路设计集团有限公司 | The geological drilling hollow boring bit suitably used in earth's surface broken ground |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2928335Y (en) * | 2006-07-18 | 2007-08-01 | 王菊英 | Plate drill bit |
| CN201280927Y (en) * | 2008-09-17 | 2009-07-29 | 上海市电力公司 | Underground pipeline detecting and prewarning apparatus |
| CN102287136A (en) * | 2011-08-20 | 2011-12-21 | 大庆井泰石油工程技术股份有限公司 | Hydraulic jetting drilling-well shower nozzle |
| CN102678058A (en) * | 2012-05-18 | 2012-09-19 | 上海市城市建设设计研究总院 | Special drill for geophysical prospecting |
| CN103291219A (en) * | 2013-06-29 | 2013-09-11 | 河南理工大学 | Drilling and punching integrated hydraulic drill bit |
| US20140054092A1 (en) * | 2012-08-24 | 2014-02-27 | Buckman Jet Drilling, Inc. | Rotary jet bit for jet drilling and cleaning |
| CN203925288U (en) * | 2014-05-30 | 2014-11-05 | 浙江省工程勘察院 | A kind of underground utilities are reconnoitred target drill |
-
2014
- 2014-05-30 CN CN201410237250.7A patent/CN103993835B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2928335Y (en) * | 2006-07-18 | 2007-08-01 | 王菊英 | Plate drill bit |
| CN201280927Y (en) * | 2008-09-17 | 2009-07-29 | 上海市电力公司 | Underground pipeline detecting and prewarning apparatus |
| CN102287136A (en) * | 2011-08-20 | 2011-12-21 | 大庆井泰石油工程技术股份有限公司 | Hydraulic jetting drilling-well shower nozzle |
| CN102678058A (en) * | 2012-05-18 | 2012-09-19 | 上海市城市建设设计研究总院 | Special drill for geophysical prospecting |
| US20140054092A1 (en) * | 2012-08-24 | 2014-02-27 | Buckman Jet Drilling, Inc. | Rotary jet bit for jet drilling and cleaning |
| CN103291219A (en) * | 2013-06-29 | 2013-09-11 | 河南理工大学 | Drilling and punching integrated hydraulic drill bit |
| CN203925288U (en) * | 2014-05-30 | 2014-11-05 | 浙江省工程勘察院 | A kind of underground utilities are reconnoitred target drill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355183A (en) * | 2017-07-25 | 2017-11-17 | 中国铁路设计集团有限公司 | The geological drilling hollow boring bit suitably used in earth's surface broken ground |
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| Publication number | Publication date |
|---|---|
| CN103993835B (en) | 2015-11-18 |
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