CN204386535U - A kind of drilling rod takes out instrument - Google Patents
A kind of drilling rod takes out instrument Download PDFInfo
- Publication number
- CN204386535U CN204386535U CN201420707954.1U CN201420707954U CN204386535U CN 204386535 U CN204386535 U CN 204386535U CN 201420707954 U CN201420707954 U CN 201420707954U CN 204386535 U CN204386535 U CN 204386535U
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- rod
- internal thread
- diameter
- thread
- 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
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Abstract
A kind of drilling rod takes out instrument, belongs to coal mine equipment field, comprises the body of rod, head, afterbody; The described body of rod is positioned at middle part, and its diameter equals drill pipe diameter; Described head is positioned at body of rod one end, and its external surface has internal-threading tool, screw thread specification and pitch and tooth form identical with internal thread on drilling rod; Described head entirety is tapered, and in the middle part of it, the pitch diameter of thread equals the central diameter of internal thread on drilling rod; Described afterbody is positioned at the other end of the body of rod, and axle center part has internal thread, and its internal thread is identical with the internal thread on drilling rod, has the drilling rod that taking-up is easily lost in boring, reduces drilling rod loss, the feature of increasing work efficiency.
Description
Technical field
The utility model belongs to coal mine equipment field, and particularly a kind of drilling rod takes out instrument.
Background technology
In coal production, down-hole coal excavation operation is, the work often carried out during boring, darker in the down-hole drilling degree of depth, in order to transport and easy to use, drilling rod adopts segment type mostly, and that is boring a deep hole needs the drilling rod of more piece to couple together the probing that can complete this hole; Current drilling rod is threaded with most employing between drilling rod, that is, in one end of a joint drilling rod, internal thread hole is set, the other end arranges external screw thread, when drilling rod to be drilled in certain depth i.e. drilling rod access aperture length enough dark time, next joint drilling rod is connected on prosthomere drilling rod, continues to deepen drilling depth; In real work, along with drilling rod lengthens service time, or probing target geological conditions is special, can by the thread damage on a certain joint drilling rod, when boring released by drilling rod, drilling rod can be lost in by boring, if do not taken out losing the drilling rod fallen, not only loses drilling rod, and hole and can not use, simultaneously because drilling depth is comparatively dark, can not enter large-scale instrument again in hole, more drilling construction causes great difficulty.
Summary of the invention
Lose all difficulties falling to causing for drilling rod in existing coal bed drilling operation, the utility model proposes a kind of drilling rod and take out instrument, it is characterized in that: comprise the body of rod, head, afterbody; The described body of rod is positioned at middle part, and its diameter equals drill pipe diameter; Described head is positioned at body of rod one end, and its external surface has internal-threading tool, screw thread specification and pitch and tooth form identical with internal thread on drilling rod; Described head entirety is tapered, and in the middle part of it, the pitch diameter of thread equals the central diameter of internal thread on drilling rod; Described afterbody is positioned at the other end of the body of rod, and axle center part has internal thread, and its internal thread is identical with the internal thread on drilling rod.
beneficial effect
The beneficial effects of the utility model are, take out the drilling rod be lost in boring easily, reduce drilling rod loss, increase work efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
1. head, the 2. body of rod, 3. afterbody.
Detailed description of the invention
In order to further illustrate the technical solution of the utility model, now further illustrate detailed description of the invention of the present utility model by reference to the accompanying drawings, as Fig. 1, select the hollow steel pipe identical with drill pipe diameter as the body of rod 2, at one end welded header 1 of the body of rod 2, head 1 adopts the round steel identical with the body of rod 2 internal diameter to be nested in 30-50 millimeter in the body of rod, and end is welded with the body of rod 2 is concordant; Producing external surface in the axial portions of round steel is 1-3 degree tapering screw tap, and described screw tap is the hole processing instrument that mechanical processing industry is conventional, can go out internal thread in unthreaded hole internal cutting; Its mid diameter is identical with drilling rod internal thread diameter, can enter easily because head diameter is little by lose fall drilling rod internal thread in, because rear portion is that tapering diameter is increasing, again that screw tap structure can cut new screw thread with the drilling rod internal thread of repair damaged in the internal thread hole damaged simultaneously, and combine closely with it, just can take out losing the drilling rod fallen easily, the internal thread of its afterbody 3 is convenient to be connected with rig or other drilling rods.
Claims (1)
1. drilling rod takes out an instrument, it is characterized in that: comprise the body of rod, head, afterbody; The described body of rod is positioned at middle part, and its diameter equals drill pipe diameter; Described head is positioned at body of rod one end, and its external surface has internal-threading tool, screw thread specification and pitch and tooth form identical with internal thread on drilling rod; Described head entirety is tapered, and in the middle part of it, the pitch diameter of thread equals the central diameter of internal thread on drilling rod; Described afterbody is positioned at the other end of the body of rod, and axle center part has internal thread, and its internal thread is identical with the internal thread on drilling rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420707954.1U CN204386535U (en) | 2014-11-24 | 2014-11-24 | A kind of drilling rod takes out instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420707954.1U CN204386535U (en) | 2014-11-24 | 2014-11-24 | A kind of drilling rod takes out instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204386535U true CN204386535U (en) | 2015-06-10 |
Family
ID=53359266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420707954.1U Expired - Fee Related CN204386535U (en) | 2014-11-24 | 2014-11-24 | A kind of drilling rod takes out instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204386535U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635670A (en) * | 2022-02-25 | 2022-06-17 | 中国矿业大学 | Method for preventing fracture of geological casing for underground existing hydrographic drilling |
-
2014
- 2014-11-24 CN CN201420707954.1U patent/CN204386535U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635670A (en) * | 2022-02-25 | 2022-06-17 | 中国矿业大学 | Method for preventing fracture of geological casing for underground existing hydrographic drilling |
| CN114635670B (en) * | 2022-02-25 | 2023-02-10 | 中国矿业大学 | Method for preventing fracture of geological casing for underground existing hydrographic drilling |
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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: 20150610 Termination date: 20151124 |