CN103510874A - Protection connector of drill rod - Google Patents
Protection connector of drill rod Download PDFInfo
- Publication number
- CN103510874A CN103510874A CN201310460180.7A CN201310460180A CN103510874A CN 103510874 A CN103510874 A CN 103510874A CN 201310460180 A CN201310460180 A CN 201310460180A CN 103510874 A CN103510874 A CN 103510874A
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- CN
- China
- Prior art keywords
- connection pipe
- unscrewing
- connection
- face
- drill rod
- 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.)
- Pending
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- Earth Drilling (AREA)
Abstract
The invention relates to a protection connector of a drill rod. The protection connector of the drill rod comprises an upper connection pipe and a lower connection pipe which is connected with the upper connection pipe in a threaded mode. A five-end threaded connection structure is adopted for threaded connection. The upper connection pipe is provided with outer threads and the lower connection pipe is provided with inner threads. The connection contact position of the upper connection pipe and the lower connection pipe is provided with an unscrewing structure which is provided with a step screwed structure. The unscrewing structure comprises a first unscrewing portion located at the outer thread root portion of the upper connection pipe and a second unscrewing portion located at the end face of the lower connection pipe. The end face of the first unscrewing portion tightly abuts against the end face of the second unscrewing portion. According to the protection connector of the drill rod, the connection pipes are connected in a five-end threaded connection mode. The unscrewing structure is arranged on the connection pipes and thus, accidents in holes due to excessive screwing of connection rods are avoided, the safety performance of the drill rod is improved and in addition, the connection rods can be easily disengaged and the operation performance is improved.
Description
Technical field
The present invention relates to geological prospecting apparatus field, relate in particular to the drilling rod of rig.
Background technology
Rig is requisite equipment in geological prospecting, and the drilling rod on rig is cylindricality strip structure, in order to improve the intensity of drilling rod, is provided with protection joint on drilling rod; Traditional protection connector by using two extension bar spirals connect, and its connecting thread is one start screw, and between two extension bars, revolves dead connection; The shortcoming of this protection joint is when drilling rod High Rotation Speed and at the bottom of making drilling tool get into hole time, and the connection meeting between extension bar is further strengthened, and causes screw thread generation imposed deformation; when serious, can twist off drilling rod, drilling accident occurs, and when drilling rod reverses; between extension bar, be difficult for threading off, cause operating difficulties.
Summary of the invention
The applicant, for the above-mentioned shortcoming of existing drilling rod protection joint, studies and improves, and a kind of easy dropout is provided, uses the protection joint of safe drilling rod.
The technical solution adopted in the present invention is as follows:
A protection joint, comprise upper connecting tube and lower linking tube that spiral connects, described spiral connects and adopts five head thread syndetons, described upper connecting tube is with external screw thread, lower linking tube is with internal thread; The contact position that is connected of described upper connecting tube and lower linking tube has to revolve and moves back structure, described in revolve and move back structure with step helix structure; Described revolving moved back structure and comprised first the revolving the portion of moving back and be positioned at second of lower linking tube end face and revolve the portion of moving back of external screw thread root that is positioned at upper connecting tube, and described the first end face that revolves the portion of moving back is close proximity to described second and revolves the end face of the portion of moving back.
Beneficial effect of the present invention is as follows:
The mode that the present invention adopts five head threads to connect realizes the connection between adapter, and in taking over above to arrange to revolve, move back structure, not only avoided causing due to overwinding between extension bar the phenomenon of drilling accident, improved the security performance of drilling rod, and can make easily to thread off between extension bar, improve operating characteristics.
Accompanying drawing explanation
Fig. 1 is three-dimensional adapter figure of the present invention.
Fig. 2 is the A place partial enlarged drawing of Fig. 1.
Fig. 3 is the three-dimensional structure diagram of lower linking tube.
Fig. 4 is the three-dimensional structure diagram of upper connecting tube.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
See Fig. 1 to Fig. 4, the present invention includes upper connecting tube 1 and lower linking tube 2 that spiral connects, described spiral connects employing five head thread syndetons, and described upper connecting tube 1 is with external screw thread 12, and lower linking tube 2 is with internal thread 22; The contact position that is connected of described upper connecting tube 1 and lower linking tube 2 has to revolve and moves back structure 3, described in revolve and move back structure 3 with step helix structure; Described revolving moved back structure 3 and comprised first the revolving the portion of moving back 11 and be positioned at second of lower linking tube 2 end faces and revolve the portion of moving back 21 of external screw thread root that is positioned at upper connecting tube 1, after upper connecting tube 1 screws with lower linking tube 2, described the first end face that revolves the portion of moving back 11 is close proximity to described second and revolves the end face of the portion of moving back 21, external screw thread 12 cannot be screwed in to the root of internal thread 22, thereby avoided spinning tension between upper connecting tube 1 and lower linking tube 2 and the problem that causes screw thread distortion and cannot thread off.
More than describing is explanation of the invention, is not the restriction to invention, and limited range of the present invention is referring to claim, and without prejudice to spirit of the present invention in the situation that, the present invention can do any type of modification.
Claims (1)
1. the protection joint of a drilling rod, comprise upper connecting tube (1) and lower linking tube (2) that spiral connects, it is characterized in that: described spiral connects employing five head thread syndetons, and described upper connecting tube (1) is with external screw thread (12), and lower linking tube (2) is with internal thread (22); The contact position that is connected of described upper connecting tube (1) and lower linking tube (2) has to revolve and moves back structure (3), described in revolve and move back structure (3) with step helix structure; Described revolving moved back structure (3) and comprised first the revolving the portion of moving back (11) and be positioned at second of lower linking tube (2) end face and revolve the portion of moving back (21) of external screw thread root that is positioned at upper connecting tube (1), and the described first end face that revolves the portion of moving back (11) is close proximity to described second and revolves the end face of the portion of moving back (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310460180.7A CN103510874A (en) | 2013-09-30 | 2013-09-30 | Protection connector of drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310460180.7A CN103510874A (en) | 2013-09-30 | 2013-09-30 | Protection connector of drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103510874A true CN103510874A (en) | 2014-01-15 |
Family
ID=49894239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310460180.7A Pending CN103510874A (en) | 2013-09-30 | 2013-09-30 | Protection connector of drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103510874A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722802A (en) * | 2015-03-16 | 2015-06-24 | 湖南状元地质装备有限公司 | Portable prospecting drill |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2929143Y (en) * | 2006-06-24 | 2007-08-01 | 李永祥 | Anti-bias wear oil pumping rod |
| CN201763287U (en) * | 2010-09-20 | 2011-03-16 | 湖南省地质矿产勘查开发局四一八队 | Rope coring safety joint |
| CN202348149U (en) * | 2011-10-26 | 2012-07-25 | 檀志远 | Self-rotating rod tube abrasion-resisting device |
| CN203081329U (en) * | 2012-12-20 | 2013-07-24 | 辽宁石油机械制造有限公司 | Sawtooth-shaped safety connector |
| CN203559799U (en) * | 2013-09-30 | 2014-04-23 | 无锡中地地质装备有限公司 | Protection joint of drill rod |
-
2013
- 2013-09-30 CN CN201310460180.7A patent/CN103510874A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2929143Y (en) * | 2006-06-24 | 2007-08-01 | 李永祥 | Anti-bias wear oil pumping rod |
| CN201763287U (en) * | 2010-09-20 | 2011-03-16 | 湖南省地质矿产勘查开发局四一八队 | Rope coring safety joint |
| CN202348149U (en) * | 2011-10-26 | 2012-07-25 | 檀志远 | Self-rotating rod tube abrasion-resisting device |
| CN203081329U (en) * | 2012-12-20 | 2013-07-24 | 辽宁石油机械制造有限公司 | Sawtooth-shaped safety connector |
| CN203559799U (en) * | 2013-09-30 | 2014-04-23 | 无锡中地地质装备有限公司 | Protection joint of drill rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722802A (en) * | 2015-03-16 | 2015-06-24 | 湖南状元地质装备有限公司 | Portable prospecting drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |