CN204283233U - A kind of telescopic drill rod - Google Patents
A kind of telescopic drill rod Download PDFInfo
- Publication number
- CN204283233U CN204283233U CN201420668465.XU CN201420668465U CN204283233U CN 204283233 U CN204283233 U CN 204283233U CN 201420668465 U CN201420668465 U CN 201420668465U CN 204283233 U CN204283233 U CN 204283233U
- Authority
- CN
- China
- Prior art keywords
- expansion link
- sleeve pipe
- hole
- main sleeve
- 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.)
- Expired - Fee Related
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- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of telescopic drill rod, comprise main sleeve pipe and expansion link, expansion link extend into also can relative to quill to slip in main sleeve pipe; The through hole that the radial direction that the circumferential wall of expansion link has more than a group extends, the locating hole that the radial direction that the circumferential wall of main sleeve pipe is provided with more than two groups extends, locating hole and through hole are equipped with alignment pin.The structure of this drilling rod is simple, is convenient to processing, reduces costs.
Description
Technical field
The utility model relates to telescopic drill rod, particularly long-spiral drilling machine telescopic drill rod.
Background technology
For long-spiral drilling machine, drilling rod is absolutely necessary parts.Traditional drilling rod on long-spiral drilling machine is all regular length, and it can only drill through the hole of certain depth, and therefore, the range of work is little.Afterwards, in order to expand the punching degree of depth of long-spiral drilling machine, there is telescopic drill rod, be in the patent document of 2010.6.23, disclose a kind of long spire telescopic drill rod as being 200920310159.8 publication date at application number, specifically disclose it and comprise drill pipe body, fixing drilling rod, movable snap ring, clip, fixing drilling rod top is provided with upper flange, bottom is provided with movable snap ring mounting groove, drill pipe body top is provided with lower flange, drill pipe body and fixing drilling rod are in contraction link position, clip is fastened in lower flange and upper flange outside, drill pipe body and fixing drilling rod are in elongation link position, clip is fastened in lower flange and movable snap ring outside.Fixing drilling rod adopts external circular type clip to be connected fast with drill pipe body upper end on two positions.Although the drilling rod of this structure can stretch, but prevent from drill pipe body and fixing drilling rod from relatively rotating to be realized by spline, as drill pipe body being fixed on a certain position of fixing drilling rod, then need the acting in conjunction of movable snap ring, clip to realize, therefore, not only its complex structure, and process inconvenience.
Summary of the invention
In order to simplify the structure of drilling rod, be convenient to processing, reduce costs, the utility model provides a kind of telescopic drill rod.
For achieving the above object, a kind of telescopic drill rod, comprises main sleeve pipe and expansion link, and expansion link extend into also can relative to quill to slip in main sleeve pipe; The through hole that the radial direction that the circumferential wall of expansion link has more than a group extends, the locating hole that the radial direction that the circumferential wall of main sleeve pipe is provided with more than two groups extends, locating hole and through hole are equipped with alignment pin.
Said structure, when needs extend drilling rod, dismounting, to alignment pin, makes expansion link skid off relative to main sleeve pipe, skids off after putting in place, is inserted into by alignment pin in another group locating hole and through hole.When needs condensation drilling rod, alignment pin is extracted, allow expansion link extend in main sleeve pipe, and alignment pin is inserted in locating hole and through hole.Like this, the telescopic drill rod of this structure is only made up of main sleeve pipe, expansion link and alignment pin, in addition, when alignment pin is inserted into after in locating hole and through hole, can not only position the axis of expansion link, and can prevent main sleeve pipe from rotating relative to expansion link, therefore, the structure of the telescopic drill rod of this structure is not only simple, and can complete the function of existing telescopic drill rod by simple structure; Further, the processing of locating hole, through hole is simple, therefore, old low.Utilize structure of the present utility model, the working range of long-spiral drilling machine can be expanded.
Further, described through hole is opening groove.It is more easy that described opening groove processing is got up, and therefore, processing is easier, and processing cost is lower.
Further, six square toes that described expansion link comprises main expansion link, is connected to the connecting rod at main expansion link two ends and is connected on connecting rod, connecting rod is respectively equipped with the opening groove described in a group; Described locating hole is respectively equipped with at the both ends of main sleeve pipe.
Further, the diameter of connecting rod is less than the diameter of main expansion link.
Further, each group opening groove comprises two, and arranges relative to the plane symmetry through expansion link axis.Make the easy to process of opening groove, the locking between main sleeve pipe and expansion link is more firm, lock power is even.
Accompanying drawing explanation
Fig. 1 is the structural representation of telescopic drill rod.
The top view of Fig. 2 to be flexible be drilling rod.
Fig. 3 is the structural representation of main sleeve pipe.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
As depicted in figs. 1 and 2, telescopic drill rod comprises main sleeve pipe 1 and expansion link 2.Expansion link 2 extend into also can relative to quill to slip in main sleeve pipe 1.
As shown in Figure 3, the upper end of main sleeve pipe is connected on unit head, is provided with helical blade 3 outside main sleeve pipe.The locating hole 11 that the radial direction that the circumferential wall of main sleeve pipe 1 is provided with more than two groups extends, in the present embodiment, be respectively equipped with one group of locating hole 11 at the both ends up and down of main sleeve pipe, each group locating hole 11 forms by two, and arranges relative to the plane symmetry through main cannula center axis.
Six square toes 23 that described expansion link 2 comprises main expansion link 21, is connected to the connecting rod 22 at main expansion link 21 two ends and is connected on connecting rod 22, the diameter of connecting rod is less than the diameter of main expansion link, connecting rod is respectively equipped with one group of through hole, described through hole is opening groove 24, each group opening groove comprises two, and arranges relative to the plane symmetry through expansion link axis.
Locating hole 11 and opening groove 24 are equipped with alignment pin.
When needs extend drilling rod, alignment pin is extracted, expansion link 2 is skidded off relative to main sleeve pipe 1, skid off after putting in place, alignment pin is inserted in the locating hole of main its lower end and the open slot of expansion link upper end, realize the locking to expansion link 2, location, and when unit head drives main sleeve pipe 1 to rotate, main sleeve pipe 1 synchronous rotary of expansion link 2 barrels can be ensured.When needs condensation drilling rod, alignment pin is extracted, allow expansion link 2 extend in main sleeve pipe 1, and alignment pin is inserted in the locating hole of main sleeve upper end and the open slot of expansion link upper end.Like this, the telescopic drill rod of this structure is only made up of main sleeve pipe 1, expansion link 2 and alignment pin, in addition, when alignment pin is inserted into after in locating hole 11 and open slot 24, can not only position the axis of expansion link 2, and can prevent main sleeve pipe 1 from rotating relative to expansion link 2, therefore, the structure of the telescopic drill rod of this structure is not only simple, and can complete the function of existing telescopic drill rod by simple structure; Further, the processing of locating hole, through hole is simple, therefore, old low.Utilize structure of the present utility model, the working range of long-spiral drilling machine can be expanded.In the present embodiment, through hole adopts open slot structure, easy to process, easy, thus can cut down finished cost.
Claims (5)
1. a telescopic drill rod, comprises main sleeve pipe and expansion link, and expansion link extend into also can relative to quill to slip in main sleeve pipe; It is characterized in that: the through hole that the radial direction having more than a group in the circumferential wall of expansion link extends, the locating hole that the radial direction that the circumferential wall of main sleeve pipe is provided with more than two groups extends, locating hole and through hole are equipped with alignment pin.
2. telescopic drill rod according to claim 1, is characterized in that: described through hole is opening groove.
3. telescopic drill rod according to claim 2, is characterized in that: six square toes that described expansion link comprises main expansion link, is connected to the connecting rod at main expansion link two ends and is connected on connecting rod, and connecting rod is respectively equipped with the opening groove described in a group; Described locating hole is respectively equipped with at the both ends of main sleeve pipe.
4. telescopic drill rod according to claim 3, is characterized in that: the diameter of connecting rod is less than the diameter of main expansion link.
5. telescopic drill rod according to claim 3, is characterized in that: each group opening groove comprises two, and arranges relative to the plane symmetry through expansion link axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420668465.XU CN204283233U (en) | 2014-01-23 | 2014-11-11 | A kind of telescopic drill rod |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042222 | 2014-01-23 | ||
| CN2014200422225 | 2014-01-23 | ||
| CN201420668465.XU CN204283233U (en) | 2014-01-23 | 2014-11-11 | A kind of telescopic drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283233U true CN204283233U (en) | 2015-04-22 |
Family
ID=52866408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420668465.XU Expired - Fee Related CN204283233U (en) | 2014-01-23 | 2014-11-11 | A kind of telescopic drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283233U (en) |
-
2014
- 2014-11-11 CN CN201420668465.XU patent/CN204283233U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151111 |
|
| EXPY | Termination of patent right or utility model |