CN205668334U - Cutting ring drill bit - Google Patents
Cutting ring drill bit Download PDFInfo
- Publication number
- CN205668334U CN205668334U CN201620501262.0U CN201620501262U CN205668334U CN 205668334 U CN205668334 U CN 205668334U CN 201620501262 U CN201620501262 U CN 201620501262U CN 205668334 U CN205668334 U CN 205668334U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- inner sleeve
- trocar sheath
- water drilling
- blank
- 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
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
This utility model relates to a kind of cutting ring drill bit, including water drilling joint, trocar sheath and inner sleeve, the internal diameter of described trocar sheath is more than the external diameter of described inner sleeve, described inner sleeve is positioned at the inside of described trocar sheath, the upper end of described trocar sheath is connected with described water drilling joint, the upper end of described inner sleeve is connected with described water drilling joint, and the lower end of described trocar sheath connects outer drill bit, and the lower end of described inner sleeve connects interior drill bit.Trocar sheath and the setting of inner sleeve, make the drill bit having two for cutting on water drilling drill bit, thus when utilizing this utility model cutting building stones blank, only need to operate water drilling once, just can get the blank of bracelet, maintain static relative to trocar sheath additionally, due to inner sleeve, thus without drawing concentric circular on building stones blank.
Description
Technical field
This utility model relates to a kind of drill bit, particularly relates to a kind of cutting ring drill bit, is mainly used in bracelet or pulls adding of finger
During work.
Background technology
The existing method preparing bracelet blank is first to draw two concentric circulars on building stones blank, then utilize water drilling at stone
Drill through twice respectively along concentric circular on Liao, the blank of bracelet can be obtained, thus operation more bothers.
Utility model content
In order to solve the problem that prior art exists, this utility model provides a kind of cutting ring drill bit, it is not necessary at building stones hair
Base upper drawing circle, directly utilizes water drilling and drills through the blank that the most just can obtain bracelet on building stones, in hgher efficiency.
The technical scheme that this utility model is used is:
A kind of cutting ring drill bit, including water drilling joint, trocar sheath and inner sleeve, the internal diameter of described trocar sheath is more than described inner sleeve
The external diameter of pipe, described inner sleeve is positioned at the inside of described trocar sheath, and the upper end of described trocar sheath is connected with described water drilling joint, institute
The upper end stating inner sleeve is connected with described water drilling joint, and the lower end of described trocar sheath connects has outer drill bit, under described inner sleeve
End connection has interior drill bit.
Further technical scheme is: the downside of described outer drill bit flushes with the downside of described interior drill bit.
Further technical scheme is: described interior drill bit is one-body molded with described inner sleeve, described outer drill bit and described outside
Sleeve pipe is one-body molded.
Further technical scheme is: the mode that described interior drill bit is threaded connection is fixed on described inner sleeve, institute
State the mode that outer drill bit is threaded connection to be fixed on described trocar sheath.
Further technical scheme is: described trocar sheath and described inner sleeve are all screwed on described water drilling joint.
The beneficial effects of the utility model are:
Trocar sheath and the setting of inner sleeve so that have two drill bits for cutting on water drilling drill bit, thus utilizing this
During utility model cutting building stones blank, only need to operate water drilling once, just can get the blank of bracelet, relative additionally, due to inner sleeve
Maintain static in trocar sheath, thus without drawing concentric circular on building stones blank.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model.
Wherein: 1, water drilling joint；2, trocar sheath；3, inner sleeve.
Detailed description of the invention
Seeing Fig. 1, this utility model provides a kind of cutting ring drill bit, including water drilling joint 1, trocar sheath 2 and inner sleeve 3,
The internal diameter of described trocar sheath 2 is more than the external diameter of described inner sleeve 3, and described inner sleeve 3 is positioned at the inside of described trocar sheath 2, described
The upper end of trocar sheath 2 is connected with described water drilling joint 1, and the upper end of described inner sleeve 3 is connected with described water drilling joint 1, described outside
The lower end of sleeve pipe 2 connects outer drill bit, and the lower end of described inner sleeve 3 connects interior drill bit.
In practical work process, this utility model is arranged on water drilling, starts water drilling, and this utility model is the most right
Building stones blank cuts, and whole runs through building stones blank, thus just can get bracelet between inner sleeve 3 and trocar sheath 2
Blank.
Owing to inner sleeve 3 maintains static relative to trocar sheath 2, thus when cutting building stones blank, it is possible to guarantee obtains
The blank conformance with standard of bracelet, referring now to (if the concentric circular drawn on building stones blank is eccentric) for prior art, just having can
The blank of the bracelet of incomplete product can be obtained, thus this utility model can improve yields.
The downside of described outer drill bit flushes with the downside of described interior drill bit, it is ensured that interior drill bit and outer drill bit are simultaneously to building stones
Blank cuts.
Described interior drill bit is one-body molded with described inner sleeve 3, and described outer drill bit is one-body molded with described trocar sheath 2；Or,
The mode that described interior drill bit is threaded connection is fixed on described inner sleeve 3, the mode that described outer drill bit is threaded connection
It is fixed on described trocar sheath 2.
Described trocar sheath 2 and described inner sleeve 3 are all screwed on described water drilling joint 1.
Inventor is it is considered that owing to needing to cut the blank of various sizes of bracelet, so that various sizes of inner sleeve
Pipe 3 and trocar sheath 2, and inner sleeve 3 and trocar sheath 2 are all fixed on water drilling joint 1 by the way of spinning, thus cut at needs
When cutting various sizes of bracelet, only need to change corresponding inner sleeve 3 and trocar sheath 2.
It is emphasized that the above citing just for bracelet, in like manner this utility model is also applicable in processing and pulls finger
During, only need to replace with corresponding trocar sheath 3 and inner sleeve 4 to be dimensioned for processing and pull the trocar sheath of finger and inner sleeve i.e.
Can, just repeat no more at this.
Claims (5)
1. a cutting ring drill bit, it is characterised in that: include water drilling joint (1), trocar sheath (2) and inner sleeve (3), described trocar sheath
(2) internal diameter is more than the external diameter of described inner sleeve (3), and described inner sleeve (3) is positioned at the inside of described trocar sheath (2), described outside
The upper end of sleeve pipe (2) is connected with described water drilling joint (1), and the upper end of described inner sleeve (3) is connected with described water drilling joint (1),
The lower end of described trocar sheath (2) connects outer drill bit, and the lower end of described inner sleeve (3) connects interior drill bit.
Cutting ring drill bit the most according to claim 1, it is characterised in that: under the downside of described outer drill bit and described interior drill bit
Side flushes.
Cutting ring drill bit the most according to claim 1, it is characterised in that: described interior drill bit becomes with described inner sleeve (3) one
Type, described outer drill bit is one-body molded with described trocar sheath (2).
Cutting ring drill bit the most according to claim 1, it is characterised in that: the mode that described interior drill bit is threaded connection is fixed
On described inner sleeve (3), the mode that described outer drill bit is threaded connection is fixed on described trocar sheath (2).
Cutting ring drill bit the most according to claim 1, it is characterised in that: described trocar sheath (2) and described inner sleeve (3) all revolve
It is connected on described water drilling joint (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620501262.0U CN205668334U (en) | 2016-05-27 | 2016-05-27 | Cutting ring drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620501262.0U CN205668334U (en) | 2016-05-27 | 2016-05-27 | Cutting ring drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205668334U true CN205668334U (en) | 2016-11-02 |
Family
ID=57193609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620501262.0U Expired - Fee Related CN205668334U (en) | 2016-05-27 | 2016-05-27 | Cutting ring drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205668334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368613A (en) * | 2016-11-25 | 2017-02-01 | 中国科学院武汉岩土力学研究所 | Drill bit and drilling machine for preparing hollow cylindrical rock specimen |
-
2016
- 2016-05-27 CN CN201620501262.0U patent/CN205668334U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368613A (en) * | 2016-11-25 | 2017-02-01 | 中国科学院武汉岩土力学研究所 | Drill bit and drilling machine for preparing hollow cylindrical rock specimen |
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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: 20161102 Termination date: 20180527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |