CN104526733A - Pipe cutter - Google Patents
Pipe cutter Download PDFInfo
- Publication number
- CN104526733A CN104526733A CN201410764732.8A CN201410764732A CN104526733A CN 104526733 A CN104526733 A CN 104526733A CN 201410764732 A CN201410764732 A CN 201410764732A CN 104526733 A CN104526733 A CN 104526733A
- Authority
- CN
- China
- Prior art keywords
- flange
- blade
- connecting rod
- pipe
- otic placode
- 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.)
- Granted
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- Earth Drilling (AREA)
Abstract
The invention discloses a pipe cutter, comprising a connecting sleeve and a flange, the flange is in sliding connection with one end of the connecting sleeve, the flange is connected with a connecting flange through a spring, the ear plate of the flange is in rotational connection with one end of a connecting rod respectively, the other end of the connecting rod is in rotational connection with one end of a blade respectively, and the other end of the blade is in rotational connection with the ear plate of the connecting flange respectively. When a trenchless pipeline is constructed, and a pipe runs into the situation that a hole collapses during being pulled back, the pipe cutter can be used to timely cut off a PE (Poly Ethylene) pipe so as to have the loss caused by a construction accident reduced to the largest extent, and is safe and reliable, and the pipe cutter has a simple structure and is convenient to operate.
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 return to drag, cause very large loss to construction accident.
Summary of the invention
Encountering hole landslide when returning and dragging in order to solve current pipe, making pipe cannot return the problem of dragging, the invention provides a kind of casing knife.
Technical scheme of the present invention is: a kind of casing knife, comprise 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 bullet pad and the first packing ring.
Preferably, described flange otic placode and connecting rod, connecting rod and blade, all pass through pinned connection between blade and adpting flange otic placode.
Preferably, the described adapter sleeve other end is provided with internal thread, for being connected with drilling rod.
Beneficial effect of the present invention: when no-dig technique pipeline construction, when the situation of hole landslide encountered by pipe when returning and dragging, utilizes casing knife of the present invention can cut off PE pipe in time, the loss of construction accident is made to reduce to minimum, safe and reliable, and pipe cutter of the present invention is simple, convenient 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, bullet pad; 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
By reference to the accompanying drawings embodiment provided by the invention is described in further detail:
As shown in figures 1-8, a kind of casing knife, comprise 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 by bolt 7, nut 9 with spring 3, and is provided with bullet pad 10 and the first packing ring 11.
Preferably, described flange 2 otic placode and connecting rod 4, connecting rod 4 with blade 5, be all connected by the first bearing pin 15, second bearing pin 16, the 3rd bearing pin 12 respectively between blade 5 with adpting flange 6 otic placode, are also provided with the second packing ring 13 and split pin 14 between blade 5 and adpting flange 6 otic placode in addition.
Preferably, described adapter sleeve 1 other end is provided with internal 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, utilize the elasticity of spring 3 that flange 2 is moved toward adapter sleeve 1 end, utilize the characteristic of linkage that blade 5 is drawn in, scratch PE pipe 17 inwall to avoid blade 5.When casing knife is in blade gathering, the internal thread of adapter sleeve 1 is utilized to be 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 elastic force utilizing the pressure of water to overcome spring 3 makes flange 2 move forward, the linkage be 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, while hydraulic pressure and unit head rotate, cut off PE pipe 17 under effect.
In this description, the present invention is described with reference to its specific embodiment.But, still can make various amendment and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, description and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (4)
1. a casing knife, it is characterized in that, comprise 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, is characterized in that, described adpting flange is connected by bolt, nut with spring, and is provided with bullet pad and the first packing ring.
3. casing knife according to claim 1 and 2, is characterized in that, described flange otic placode and connecting rod, connecting rod and blade, all passes through pinned connection between blade and adpting flange otic placode.
4. casing knife according to claim 1 and 2, is characterized in that, the described adapter sleeve other end is provided with internal 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 true CN104526733A (en) | 2015-04-22 |
| CN104526733B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735513A (en) * | 2016-11-15 | 2017-05-31 | 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735513A (en) * | 2016-11-15 | 2017-05-31 | 北京空间机电研究所 | A kind of pipeline separator of sealing structure, quick response |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104526733B (en) | 2016-07-20 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160720 Termination date: 20161215 |