CN202180243U - Tapping tool for electric melting saddle type accessories - Google Patents
Tapping tool for electric melting saddle type accessories Download PDFInfo
- Publication number
- CN202180243U CN202180243U CN2011201840338U CN201120184033U CN202180243U CN 202180243 U CN202180243 U CN 202180243U CN 2011201840338 U CN2011201840338 U CN 2011201840338U CN 201120184033 U CN201120184033 U CN 201120184033U CN 202180243 U CN202180243 U CN 202180243U
- Authority
- CN
- China
- Prior art keywords
- cutter
- saddle type
- tapping tool
- electric smelting
- boring cutter
- 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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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model relates to the technical field of pipeline connection, in particular to a tapping tool for electric melting saddle type accessories. Standard threads are arranged on the outer wall of the upper portion of the tapping tool, a hexagon socket screw hole is disposed in the middle of the upper portion of the tapping tool, a tool hole is disposed on the lower portion of the tapping tool, trapezoidal threads are disposed on the inner wall of the tool hole, a plurality of tools with consistent inclinations are arranged below the trapezoidal threads, and wedge-shaped shoulders are disposed on blades of the tools. The wedge-shaped tools match with the trapezoidal threads, chips which are generated when holes are tapped on pipes are prevented from falling, and the chips are clamped at gaps of the trapezoidal threads.
Description
Technical field
The utility model relates to the pipeline connection technology field, is specifically related to a kind of electric smelting saddle type accessory boring cutter.
Background technology
At present, electric smelting saddle type pipe fitting be widely used in polyethylene gas pipe study for a second time courses one has flunked the welding with branch pipe(tube) be connected the extension in, can carry out constructing operation to broken pipe because of it need not to stop the supple of gas or steam, easy to use.And, be widely used in a plurality of industries such as feedwater, oil, chemical industry because the diversity of electric smelting saddle type pipe fitting has enlarged its purposes greatly.Boring cutter is the significant components of electric smelting saddle type pipe fitting; Except a sharp cutter will be arranged, blocking pipe and corollary equipment thereof also were problem demanding prompt solutions to handle the block bits of the plastics that stay after the perforate in case stops shape bits drop in tubing to the perforate of tubing.Sharp stage property is easy to realize, though and the boring cutter kind is different at present, never solve the problem that the block bits of plastics come off after the perforate.
Summary of the invention
The technical problem that the utility model solves is the deficiency that overcomes prior art, and a kind of electric smelting saddle type accessory boring cutter that prevents that effectively the tubing chip from coming off is provided.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is following:
A kind of electric smelting saddle type accessory boring cutter, external wall of upper portion has standard thread, hexagonal screw in offering in the middle of the top; The bottom offers the cutter hole; Said cutter hole inwall is provided with trapezoidal thread, and the trapezoidal thread below is provided with the consistent cutter in a plurality of angles of inclination, and the blade of cutter is provided with carves the type convex shoulder.The boring cutter of the utility model; When the cutter rotation pierces tubing; It is inner that the block bits of plastics get into the cutter hole, and be close to trapezoidal thread, and tubing is drilled through the stop motion of the block bits of back plastics; The type of the carving convex shoulder on the edge of a knife clamped the plastics bulk that might become flexible up and down with trapezoidal thread and considered to be worth doing this moment, had solved the problem that coming off appears in plastics after the tubing perforate effectively.Because the bigger structure of the distinctive opening of trapezoidal thread can guarantee effectively that the block bits of plastics are easier to get into its gap.
Preferably, said cutter is four.Four cutters are symmetrical set, and cooperate the design of wedge shape convex shoulder simultaneously, effectively prevent the effect that boring cutter boring is skidded.
From the consideration of stress, at the knife-edge part of cutter half cone-shaped feed groove is set, with the cutting tubing that is more prone to, effectively prevent the fracture of the edge of a knife simultaneously.
Said boring cutter top shoulder offers the groove that is used to install sealing ring, prevents that to reach combustion gas from revealing away the seal protection effect through thread gaps.
Compared with prior art; The beneficial effect of the utility model technical scheme is: the utility model is through the design of wedge shape convex shoulder in the cutter hole and trapezoidal thread; Can the chip that produce in the perforate process be stuck in the slit of trapezoidal thread, effectively prevent coming off of chip, avoid blocking pipe.
Description of drawings
Fig. 1 is the utility model cutaway view;
Fig. 2 is an A place enlarged drawing among Fig. 1;
Fig. 3 is the utility model upward view;
Fig. 4 is the utility model user mode figure.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the technical scheme of the utility model is done further explanation.
Be illustrated in figure 1 as the electric smelting saddle type accessory boring cutter of the utility model, external wall of upper portion has standard thread 1, hexagonal screw 2 in offering in the middle of the top, and the bottom offers cutter hole 3.Said cutter hole 3 inwalls are provided with trapezoidal thread 4, and trapezoidal thread 4 belows are provided with the consistent cutter 5 in four angles of inclination.The concrete structure of cutter 5 has on the blade of cutter and carves type convex shoulder (see figure 2) shown in Fig. 2 and 3, the wedge shape convex shoulder with remind threaded engagement, the chip that produces when better blocking the tubing perforate; Knife-edge part is provided with half cone-shaped feed groove (see figure 3), with the cutting tubing that is more prone to, effectively prevents the fracture of the edge of a knife simultaneously.Said boring cutter top shoulder offers groove 9, is used to install sealing ring, prevents that to reach combustion gas from revealing away the seal protection effect through thread gaps.
The method for using of the utility model is as shown in Figure 4: the interior hexagonal screw 2 with the boring cutter in the die nut 6 aligning saddle type accessories 7, rotate die nut 6, then under the effect of die nut 6; Boring cutter is along the inner thread of saddle type accessory 7; Down boring at leisure occurs one and encloses the flute mark of circular arc on the tubing 8, tiny plastics bits are extruded in the type edge of a knife from carving; And the circular block bits of the plastics that do not drill through are also stayed on the tubing 8.The plastics bits that existing this moment part drops get in the cutter hole 3, are carved the type convex shoulder by four of knife-edge part and withstand.Along with the block bits of plastics that get in the cutter advance darker and darker, the trapezoidal thread 4 of cutter hole 3 inwalls limits plastics bits trend up gradually, and forces the block bits of plastics to be close to trapezoidal thread 4 rotations, till tubing 8 is drilled through.After tubing 8 is drilled through, retracted upward boring cutter then, the block bits of plastics this moment just permanently rest in the cutter hole 3, the phenomenon that comes off no longer occurs, have so just stopped the possibility that the obstruction plastic conduit appears in the block bits of plastics.
Claims (4)
1. electric smelting saddle type accessory boring cutter; External wall of upper portion has standard thread, hexagonal screw in offering in the middle of the top, and the bottom offers the cutter hole; It is characterized in that; Said cutter hole inwall is provided with trapezoidal thread, and the trapezoidal thread below is provided with the consistent cutter in a plurality of angles of inclination, and the blade of cutter is provided with carves the type convex shoulder.
2. electric smelting saddle type accessory boring cutter according to claim 1 is characterized in that said cutter is four.
3. electric smelting saddle type accessory boring cutter according to claim 2 is characterized in that the knife-edge part of cutter is provided with half cone-shaped feed groove.
4. according to the arbitrary described electric smelting saddle type accessory boring cutter of claim 1-3, it is characterized in that said boring cutter top shoulder offers the groove that is used to install sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201840338U CN202180243U (en) | 2011-06-02 | 2011-06-02 | Tapping tool for electric melting saddle type accessories |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201840338U CN202180243U (en) | 2011-06-02 | 2011-06-02 | Tapping tool for electric melting saddle type accessories |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202180243U true CN202180243U (en) | 2012-04-04 |
Family
ID=46173292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201840338U Expired - Fee Related CN202180243U (en) | 2011-06-02 | 2011-06-02 | Tapping tool for electric melting saddle type accessories |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202180243U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962862A (en) * | 2012-12-07 | 2013-03-13 | 蚌埠新奥燃气发展有限公司 | PE pipe electric melting saddle type direct-through tapper |
| CN104438564A (en) * | 2014-12-11 | 2015-03-25 | 中国航空工业标准件制造有限责任公司 | Bottom chip removal punch |
-
2011
- 2011-06-02 CN CN2011201840338U patent/CN202180243U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962862A (en) * | 2012-12-07 | 2013-03-13 | 蚌埠新奥燃气发展有限公司 | PE pipe electric melting saddle type direct-through tapper |
| CN104438564A (en) * | 2014-12-11 | 2015-03-25 | 中国航空工业标准件制造有限责任公司 | Bottom chip removal punch |
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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: 20120404 Termination date: 20200602 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |