CN104526733B - A kind of casing knife - Google Patents
A kind of casing knife Download PDFInfo
- Publication number
- CN104526733B CN104526733B CN201410764732.8A CN201410764732A CN104526733B CN 104526733 B CN104526733 B CN 104526733B CN 201410764732 A CN201410764732 A CN 201410764732A CN 104526733 B CN104526733 B CN 104526733B
- Authority
- CN
- China
- Prior art keywords
- flange
- blade
- otic placode
- connecting rod
- casing knife
- 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
Disclosure one casing knife, including adapter sleeve and flange, described flange and adapter sleeve one end are slidably connected, described flange is connected with adpting flange by spring, the otic placode of described flange is rotationally connected with connecting rod one end respectively, the other end of described connecting rod is rotationally connected with blade one end respectively, and the other end of described blade is rotationally connected with described adpting flange otic placode respectively.When no-dig technique pipeline construction, when the situation of hole landslide encountered by pipe when returning and dragging, utilize the casing knife of the present invention can cut off PE pipe in time, make the loss of construction accident reduce to minimum, safe and reliable, and also the pipe cutter of the present invention is simple, it is simple to operation.
Description
Technical field
The present invention relates to a kind of casing knife, in particular for the casing knife of PE pipe.
Background technology
At present, when no-dig technique pipeline construction, encounter hole landslide when returning and dragging when pipe and often make pipe to return to drag, cause very big loss to construction accident.
Summary of the invention
Encountering hole landslide when returning and dragging in order to solve current pipe, make pipe cannot return the problem dragged, the present invention provides a kind of casing knife.
The technical scheme is that a kind of casing knife, including adapter sleeve and flange, described flange and adapter sleeve one end are slidably connected, described flange is connected with adpting flange by spring, the otic placode of described flange is rotationally connected with connecting rod one end respectively, the other end of described connecting rod is rotationally connected with blade one end respectively, and the other end of described blade is rotationally connected with described adpting flange otic placode respectively.
Preferably, described adpting flange is connected by bolt, nut with spring, and is provided with spring washer and the first packing ring.
Preferably, described flange otic placode is connected each through bearing pin with between blade, blade and adpting flange otic placode with connecting rod, connecting rod.
Preferably, the described adapter sleeve other end is provided with female thread, for being connected with drilling rod.
Beneficial effects of the present invention: when no-dig technique pipeline construction, when the situation of hole landslide encountered by pipe when returning and dragging, utilizes the casing knife of the present invention can cut off PE pipe in time, the loss making construction accident reduces to minimum, safe and reliable, and the pipe cutter of the present invention is simple, it is simple to operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of casing knife blade closed configuration of the present invention；
Fig. 2 is the structural representation of casing knife open mode of the present invention；
Fig. 3 is the sectional view of adapter sleeve of the present invention；
Fig. 4 is the side view of Fig. 3；
Fig. 5 is flange arrangement schematic diagram of the present invention；
Fig. 6 is the side view of Fig. 5；
Fig. 7 is the structural representation of adpting flange of the present invention；
Fig. 8 is the side view of Fig. 7；
In figure: 1, adapter sleeve；2, flange；3, spring；4, connecting rod；5, blade；6, adpting flange；7, bolt；8, tube head；9, nut；10, spring washer；11, the first packing ring；12, the 3rd bearing pin；13, the second packing ring；14, split pin；15, the first bearing pin；16, the second bearing pin；17, PE pipe.
Detailed description of the invention
In conjunction with accompanying drawing, embodiment provided by the invention is described in further detail:
As shown in figures 1-8, a kind of casing knife, including adapter sleeve 1 and flange 2, described flange 2 is slidably connected with adapter sleeve 1 one end, described flange 2 is connected with adpting flange 6 by spring 3, the otic placode of described flange 2 is rotationally connected with connecting rod 4 one end respectively, and the other end of described connecting rod 4 is rotationally connected with blade 5 one end respectively, and the other end of described blade 5 is rotationally connected with described adpting flange 6 otic placode respectively.
Adpting flange 6 described in the present embodiment is connected with spring 3 by bolt 7, nut 9, and is provided with spring washer 10 and the first packing ring 11.
Preferably, described flange 2 otic placode is connected each through first bearing pin the 15, second bearing pin the 16, the 3rd bearing pin 12 with between blade 5, blade 5 and adpting flange 6 otic placode respectively with connecting rod 4, connecting rod 4, is additionally additionally provided with the second packing ring 13 and split pin 14 between blade 5 and adpting flange 6 otic placode.
Preferably, described adapter sleeve 1 other end is provided with female thread, for being connected with drilling rod.
Fig. 1 is that casing knife is in closed configuration structure chart at blade, otic placode composition linkage on otic placode on flange 2, connecting rod 4, blade 5, adpting flange 6, the elasticity utilizing spring 3 makes flange 2 move toward adapter sleeve 1 end, the characteristic utilizing linkage makes blade 5 draw in, to avoid blade 5 to scratch PE pipe 17 inwall.When casing knife is in blade gathering, the female thread utilizing adapter sleeve 1 is connected with drilling rod, casing knife puts in PE pipe 17 along with drilling rod, when casing knife contacts with tube head 8, utilize unit head rotary drill rod to drive casing knife to rotate slush pump on machine to be opened simultaneously, the pressure utilizing water overcomes the elastic force of spring 3 to make flange 2 be moved along, the linkage being made up of the otic placode on the otic placode on flange 2, connecting rod 4, blade 5, adpting flange 6 makes blade 5 open, and cuts off PE pipe 17 while hydraulic pressure and unit head rotate under effect.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that still may be made that various amendment and conversion are without departing from the spirit and scope of the present invention.Therefore, specification and drawings is regarded in an illustrative, rather than a restrictive.
Claims (4)
1. a casing knife, it is characterized in that, including adapter sleeve and flange, described flange and adapter sleeve one end are slidably connected, described flange is connected with adpting flange by spring, the otic placode of described flange is rotationally connected with connecting rod one end respectively, and the other end of described connecting rod is rotationally connected with blade one end respectively, and the other end of described blade is rotationally connected with described adpting flange otic placode respectively.
2. casing knife according to claim 1, it is characterised in that described adpting flange is connected by bolt, nut with spring, and it is provided with spring washer and the first packing ring.
3. casing knife according to claim 1 and 2, it is characterised in that described flange otic placode is connected each through bearing pin with between blade, blade and adpting flange otic placode with connecting rod, connecting rod.
4. casing knife according to claim 1 and 2, it is characterised in that the described adapter sleeve other end is provided with female thread, for being connected with drilling rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410764732.8A CN104526733B (en) | 2014-12-15 | 2014-12-15 | A kind of casing knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410764732.8A CN104526733B (en) | 2014-12-15 | 2014-12-15 | A kind of casing knife |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104526733A CN104526733A (en) | 2015-04-22 |
| CN104526733B true CN104526733B (en) | 2016-07-20 |
Family
ID=52842458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410764732.8A Expired - Fee Related CN104526733B (en) | 2014-12-15 | 2014-12-15 | A kind of casing knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104526733B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735513B (en) * | 2016-11-15 | 2018-10-09 | 北京空间机电研究所 | A kind of pipeline separator of sealing structure, quick response |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB685515A (en) * | 1951-06-07 | 1953-01-07 | Maurycy Ringler | Apparatus for cutting pipes of rotary well-boring apparatus |
| CN2564736Y (en) * | 2002-03-26 | 2003-08-06 | 贾伟志 | Tool for cutting and fishing pipe string of oil field downhole |
| RU2365736C1 (en) * | 2008-03-12 | 2009-08-27 | Степан Васильевич Гнатив | Device for cutting of pipes in well |
| CN202381009U (en) * | 2011-11-25 | 2012-08-15 | 中国石油天然气集团公司 | Hydraulic machinery inner cutter body cutting device |
| CN203532956U (en) * | 2013-10-08 | 2014-04-09 | 佛山市钻龙市政工程有限公司 | Underground pipeline cutter |
-
2014
- 2014-12-15 CN CN201410764732.8A patent/CN104526733B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB685515A (en) * | 1951-06-07 | 1953-01-07 | Maurycy Ringler | Apparatus for cutting pipes of rotary well-boring apparatus |
| CN2564736Y (en) * | 2002-03-26 | 2003-08-06 | 贾伟志 | Tool for cutting and fishing pipe string of oil field downhole |
| RU2365736C1 (en) * | 2008-03-12 | 2009-08-27 | Степан Васильевич Гнатив | Device for cutting of pipes in well |
| CN202381009U (en) * | 2011-11-25 | 2012-08-15 | 中国石油天然气集团公司 | Hydraulic machinery inner cutter body cutting device |
| CN203532956U (en) * | 2013-10-08 | 2014-04-09 | 佛山市钻龙市政工程有限公司 | Underground pipeline cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104526733A (en) | 2015-04-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160720 Termination date: 20161215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |