CN203822233U - Fishing tap for broken drill rod - Google Patents
Fishing tap for broken drill rod Download PDFInfo
- Publication number
- CN203822233U CN203822233U CN201420153753.1U CN201420153753U CN203822233U CN 203822233 U CN203822233 U CN 203822233U CN 201420153753 U CN201420153753 U CN 201420153753U CN 203822233 U CN203822233 U CN 203822233U
- Authority
- CN
- China
- Prior art keywords
- drill rod
- broken drill
- tap
- tap body
- fishing
- 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
Abstract
The utility model discloses a fishing tap for a broken drill rod, and relates to the technical field of borehole drilling. The fishing tap comprises a tap body, wherein a hollow cavity is formed in the tap body, and two annular grooves are formed in the front part; an expansion rod is nested in the tap body; and a cross section of the expansion rod is cross-shaped or elliptic. The fishing tap for the broken drill rod has the benefits as follows: the tap body can be hammered into the tail part of the broken drill rod under the condition that the broken drill rod is not burst apart, the tap body can be hammered into the broken drill rod more quickly by means of the special shape of the front end of the tap body, the tap body and the broken drill rod can be more firmly combined by the expansion rod nested in the tap body, and accordingly, the broken drill rod is pulled out quickly.
Description
Technical field
The utility model relates to borehole drilling technical field, specifically a kind of disconnected pricker fishing spear.
Background technology
Borehole drilling is executed in the course of work because rock texture is complicated and changeable, and in rock drilling process, the drill steel of hammer drill can rupture, and this is just need to be from new punching.In order to cut the waste and the number of openings, the drill rod getting lodged in hole need to be taken out, way is in the past that a thinner drill rod is hammered into the bit shank portion of breaking, if the drill rod of selecting meeting really up to the mark will be broken, bit shank portion bursts apart, cross and softly cannot extract again disconnected pricker, so success rate is very low.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of disconnected pricker fishing spear, the disconnected pricker of taking-up of this fishing spear energy efficient quick.
The technical scheme of the utility model technical solution problem is:
A kind of disconnected pricker fishing spear, comprises cone, in cone, is hollow cavity, and front portion is provided with two annular grooves.
In cone, be set with expansion bar.
The cross section of expanding bar is cross.
The cross section of expanding bar is ellipse.
The beneficial effects of the utility model are: cone can hammer into the bit shank portion of breaking in the situation that not bursting apart disconnected pricker, the special shape of cone front end can make cone hammer into sooner disconnected pricker, what the expansion bar of socket can make that cone is combined with disconnected pricker in cone is more firm, and then the pricker that will break is extracted fast.
Brief description of the drawings
Fig. 1 is this practical new construction schematic diagram.
Fig. 2 is new the 1st scenario-frame schematic diagram of this practicality.
Fig. 3 is new the 1st scheme upward view of this practicality.
Fig. 4 is new the 2nd scenario-frame schematic diagram of this practicality.
Fig. 5 is new the 2nd scheme upward view of this practicality.
Description of reference numerals: cone 1, expansion bar 2, groove 3.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further: a kind of disconnected pricker fishing spear, comprise cone 1 and expand bar 2, in cone 1, be hollow cavity, front portion has two annular grooves 3, expands bar 2 and is sleeved in cone 1.In order to play good result of use, cone 1 is used the softer mild steel of material to make, and expands bar 2 and can adopt the harder high-carbon steel of material to make.The total two sets of plan of shape that expands bar 2, the cross section of expanding bar 2 in scheme one is cross, the cross section of expanding bar 2 in scheme two is ellipse.
In use, first disconnected pricker fishing spear is arranged on to the head of drilling rod on rig, then start rig, the drilling rod that disconnected pricker fishing spear is housed is stretched into card and have the hole of disconnected money, when touching, disconnected pricker fishing spear breaks after bit shank portion, under the promotion of rig, the head of disconnected pricker fishing spear will be squeezed into the bit shank portion of breaking, because cone 1 material of disconnected pricker fishing spear is softer, the afterbody that can enter fast disconnected pricker after extruding can not burst apart the pricker that breaks simultaneously, expand bar 2 because material is more not yielding, can make the inner fully laminating of cone 1 and disconnected pricker, the pricker that so just can will break is extracted fast.
Claims (4)
1. a disconnected pricker fishing spear, comprises cone, it is characterized in that: in described cone (1), be hollow cavity, front portion is provided with two annular grooves (3).
2. a kind of fracture of wire fishing spear according to claim 1, is characterized in that: in described cone (1), be set with and expand bar (2).
3. the disconnected pricker fishing spear of one according to claim 2, is characterized in that: the cross section of described expansion bar (2) is cross.
4. the disconnected pricker fishing spear of one according to claim 2, is characterized in that: the cross section of described expansion bar (2) is ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153753.1U CN203822233U (en) | 2014-04-01 | 2014-04-01 | Fishing tap for broken drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153753.1U CN203822233U (en) | 2014-04-01 | 2014-04-01 | Fishing tap for broken drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822233U true CN203822233U (en) | 2014-09-10 |
Family
ID=51477746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420153753.1U Expired - Fee Related CN203822233U (en) | 2014-04-01 | 2014-04-01 | Fishing tap for broken drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106416460A (en) * | 2016-11-14 | 2017-02-22 | 马鞍山市绿之友机械制造有限公司 | Cross-shaped perforating needle and manufacturing method thereof |
-
2014
- 2014-04-01 CN CN201420153753.1U patent/CN203822233U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106416460A (en) * | 2016-11-14 | 2017-02-22 | 马鞍山市绿之友机械制造有限公司 | Cross-shaped perforating needle and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206693919U (en) | Drill hole of drilling machine reaming bit | |
| CN203822233U (en) | Fishing tap for broken drill rod | |
| WO2010127233A4 (en) | Casing bits, drilling assemblies, and methods for use in forming wellbores with expandable casing | |
| CN203499567U (en) | Self-breaking type micro coring drill bit | |
| CN210829078U (en) | Eccentric reaming pipe following drilling tool | |
| CN105735900A (en) | Back-enlarging head for anchor hole chambering | |
| CN203097718U (en) | Powerful reaming drill | |
| CN205936408U (en) | Toper anti -sticking bores drill bit | |
| CN201258477Y (en) | Thick covering layer preconsolidation grouting advanced tubule | |
| CN202673167U (en) | Three-arris drill pipe special for coal mine underground gas drainage | |
| CN102606105B (en) | Casing extractor | |
| CN205869544U (en) | Area is pull umbrella -type of drill bit and is bored | |
| CN202343997U (en) | Drill sleeve | |
| CN101775961A (en) | Special drill bit for tapered hole and application method of tapered hole | |
| CN206263308U (en) | Large aperture multi-stage reducing drill hammer | |
| CN203171035U (en) | Stepped drill | |
| CN204691682U (en) | A kind of drill bit with anticreep alloy sheet | |
| CN202745783U (en) | Drilling and milling type spiral external hook for salvaging clustered sucker rod | |
| CN105312593A (en) | Ejection rod hole drilling method after surfacing of crankshaft forging die | |
| CN201037379Y (en) | Blocking-proof drill bit | |
| CN104165029A (en) | Gas extraction method for underground coal mine full-length drill hole | |
| CN204371170U (en) | A kind of DTH drilling drill rod breaking extracts draw-gear | |
| CN204492727U (en) | Pipe nipple repaired by the borehole wall | |
| CN205012923U (en) | Tapered rock bit | |
| CN109296326A (en) | It is a kind of can be improved supporting construction efficiency pierce method |
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: 20140910 Termination date: 20150401 |
|
| EXPY | Termination of patent right or utility model |