CN106523850A - Pulling-expanding type cracked pipe knife - Google Patents
Pulling-expanding type cracked pipe knife Download PDFInfo
- Publication number
- CN106523850A CN106523850A CN201610928169.2A CN201610928169A CN106523850A CN 106523850 A CN106523850 A CN 106523850A CN 201610928169 A CN201610928169 A CN 201610928169A CN 106523850 A CN106523850 A CN 106523850A
- Authority
- CN
- China
- Prior art keywords
- knife
- cutter hub
- knife body
- pulling
- pipe
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/18—Appliances for use in repairing pipes
Abstract
The invention relates to a pulling-expanding type cracked pipe knife which comprises a knife body; a central hole which penetrates through the front and the rear of the knife body is formed in the middle part of the knife body; the outer contour of the knife body is in the shape of a circular arc; the section radius of the knife body is gradually increased from front to rear; a plurality of cutting edges are arranged around the outer contour of the knife body; and the structure of each cutting edge is consistent with the structure of the position, wherein the cutting edge is located, of the outer contour of the knife body. Compared with the prior art, the pulling-expanding type cracked pipe knife has the advantages of simplifying the structure, increasing the speed of cutting waste pipes with the knife and improving construction efficiency, and is suitable for quick cracked pipe repair construction.
Description
Technical field
The present invention relates to a kind of application split pipe knife splitting the drawing cut to burst pipe on the pipe prosthetic device formula that rises.
Background technology
201210396104.X inventions propose a kind of non-device for opening control pneumatic cracking pipe reparation underground piping, system and side
Method, the system include existing well and working pit；Be provided with assembly pulley and hoist engine in existing Jing Chu, hoist engine by draw-gear with
Tube head connection is split, draw-gear is provided with forward and backward crossover sub, pin, adjuster, bolt；Air compression is additionally provided with outside working pit
Machine is driving the hoist engine.This splits tube head and is provided with conical nose and an afterbody for being used to connect replacement pipe, and logical with one
Hole:The through hole center line is overlapped with the conical nose center line, and anterior columnar through holes are used to install front crossover sub, and end cone leads to
Hole is used to connect poor pipe machine:This splits tube head and is provided with conical nose, and its outer surface is provided with swollen knife；What the swollen knife was formed splits tube head
External diameter is more than the internal diameter of old pipe to burst old pipe in propulsion.But this is swollen, and knife cuts old pipe speed slowly, and efficiency is low, it is impossible to adapt to
Pipe repairing construction is split quickly.
The content of the invention
It is an object of the invention to provide a kind of draw the formula that rises to split pipe knife, technical problem to be solved is：How structure is simplified,
Old pipe speed is cut in lifting, improves efficiency of construction, and pipe repairing construction is quickly split in adaptation.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：It is a kind of to draw the formula that rises to split pipe knife, including cutter hub, the knife
It is provided with centre bore of the insertion before and after which in the middle part of body, the outline of the cutter hub is in arc-shaped, the section radius of the cutter hub
Gradually increase from front to back；Multiple blades are provided with the outline of the cutter hub, the structure of each blade is equal
It is consistent with the cutter hub outline structure of its present position.
The invention has the beneficial effects as follows：Centre bore is easy to be connected with pull bar, lifts steadiness, and lifting construction efficiency is multiple
Blade can carry out comprehensive cutting to old pipe, and old pipe speed is cut in quickening；The structure of each blade is in arcuation, can be reduced
Suffered resistance during old pipe is cut, old pipe speed is cut in quickening；Efficiency of construction is improved, pipe repairing construction is quickly split in adaptation.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the cutting edge of each blade is in arc structure.
Using the beneficial effect of above-mentioned further scheme it is：In in arc structure, old pipe speed is cut in quickening to cutting edge.
Further, the front end of the cutter hub protrudes from the front end of multiple blades.
Using the beneficial effect of above-mentioned further scheme it is：Can strengthen and cut old pipe speed.
Description of the drawings
Fig. 1 is a kind of structural representation for drawing the formula that rises to split pipe knife of the present invention；
AA sectional views of the Fig. 2 for Fig. 1.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, cutter hub, 2, centre bore, 3, blade.
Specific embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
It is non-for limiting the scope of the present invention.
As depicted in figs. 1 and 2, it is a kind of to draw the formula that rises to split pipe knife, including cutter hub 1, the middle part of the cutter hub 1 be provided with insertion its
Centre bore 2 in front and back, in arc-shaped, the section radius of the cutter hub 1 gradually increase the outline of the cutter hub 1 from front to back；
Multiple blades 3 are provided with the outline of the cutter hub 1, the structure of each blade 3 with its present position
1 outline structure of cutter hub is consistent；Centre bore 2 is easy to be connected with pull bar, lifts steadiness, lifting construction efficiency, 3 energy of multiple blades
Comprehensive cutting is carried out to old pipe, old pipe speed is cut in quickening；The structure of each blade 3 is in arcuation, can reduce and cut
Suffered resistance during old pipe, quickening cut old pipe speed；Efficiency of construction is improved, pipe repairing construction is quickly split in adaptation.
In above-described embodiment, the cutting edge of each blade 3 is in arc structure；Cutting edge is accelerated in arc structure
Cut old pipe speed.
In above-described embodiment, the front end of the cutter hub 1 protrudes from the front end of multiple blades 3；Can strengthen and cut old pipe
Speed.
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (3)
- It is 1. a kind of to draw the formula that rises to split pipe knife, including cutter hub (1), it is characterised in that：Insertion is provided with the middle part of the cutter hub (1) before which Centre bore (2) afterwards, in arc-shaped, the section radius of the cutter hub (1) gradually increase the outline of the cutter hub (1) from front to back Greatly；Multiple blades (3) are provided with the outline of the cutter hub (1), the structure of each blade (3) with its institute Cutter hub (1) the outline structure of place position is consistent.
- It is 2. a kind of according to claim 1 to draw the formula that rises to split pipe knife, it is characterised in that：The cutting edge of each blade (3) is equal In arc structure.
- It is 3. a kind of according to claim 1 to draw the formula that rises to split pipe knife, it is characterised in that：The front end of the cutter hub (1) protrudes from many The front end of the individual blade (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610928169.2A CN106523850A (en) | 2016-10-31 | 2016-10-31 | Pulling-expanding type cracked pipe knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610928169.2A CN106523850A (en) | 2016-10-31 | 2016-10-31 | Pulling-expanding type cracked pipe knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106523850A true CN106523850A (en) | 2017-03-22 |
Family
ID=58292148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610928169.2A Pending CN106523850A (en) | 2016-10-31 | 2016-10-31 | Pulling-expanding type cracked pipe knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106523850A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859784A (en) * | 2017-12-21 | 2018-03-30 | 上海煤气第二管线工程有限公司 | A kind of pipeline splits pipe device and its construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0379707A2 (en) * | 1989-01-25 | 1990-08-01 | Hans Brochier GmbH & Co | Pneumatic pipe-expanding device |
| US6896077B1 (en) * | 2002-11-04 | 2005-05-24 | The Charles Machines Works, Inc. | Rotary driven pipe-bursting tool |
| US20110081206A1 (en) * | 2009-10-05 | 2011-04-07 | Tt Technologies, Inc. | Jointed pipe splitter with pneumatic hammer |
| CN202228785U (en) * | 2011-09-09 | 2012-05-23 | 中国石化集团第十建设公司 | Jack type pipe-jacking head for long transmission pipeline |
| CN202852194U (en) * | 2012-10-18 | 2013-04-03 | 北京隆科兴非开挖工程有限公司 | Device and system of under ground pipeline repair without excavation of pneumatic burst pipe |
| CN103273134A (en) * | 2013-05-20 | 2013-09-04 | 哈尔滨天泰科技有限公司 | Pipe cutter |
| CN105750634A (en) * | 2015-06-25 | 2016-07-13 | 中山佑腾电子科技有限公司 | Tube cutter |
-
2016
- 2016-10-31 CN CN201610928169.2A patent/CN106523850A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0379707A2 (en) * | 1989-01-25 | 1990-08-01 | Hans Brochier GmbH & Co | Pneumatic pipe-expanding device |
| US6896077B1 (en) * | 2002-11-04 | 2005-05-24 | The Charles Machines Works, Inc. | Rotary driven pipe-bursting tool |
| US20110081206A1 (en) * | 2009-10-05 | 2011-04-07 | Tt Technologies, Inc. | Jointed pipe splitter with pneumatic hammer |
| CN202228785U (en) * | 2011-09-09 | 2012-05-23 | 中国石化集团第十建设公司 | Jack type pipe-jacking head for long transmission pipeline |
| CN202852194U (en) * | 2012-10-18 | 2013-04-03 | 北京隆科兴非开挖工程有限公司 | Device and system of under ground pipeline repair without excavation of pneumatic burst pipe |
| CN103273134A (en) * | 2013-05-20 | 2013-09-04 | 哈尔滨天泰科技有限公司 | Pipe cutter |
| CN105750634A (en) * | 2015-06-25 | 2016-07-13 | 中山佑腾电子科技有限公司 | Tube cutter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859784A (en) * | 2017-12-21 | 2018-03-30 | 上海煤气第二管线工程有限公司 | A kind of pipeline splits pipe device and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |
|
| RJ01 | Rejection of invention patent application after publication |