CN202052969U - Cutter used for electric-melting saddle-shaped three-way pipe fitting - Google Patents
Cutter used for electric-melting saddle-shaped three-way pipe fitting Download PDFInfo
- Publication number
- CN202052969U CN202052969U CN2011200773482U CN201120077348U CN202052969U CN 202052969 U CN202052969 U CN 202052969U CN 2011200773482 U CN2011200773482 U CN 2011200773482U CN 201120077348 U CN201120077348 U CN 201120077348U CN 202052969 U CN202052969 U CN 202052969U
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- cutter
- cutter hub
- pipe fitting
- utility
- electric
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Abstract
The utility model discloses a cutter used for electric-melting saddle-shaped three-way pipe fittings. The cutter comprises a cylindrical cutter body, wherein the cutter body is hollow and external threads are formed at the upper part of the outer surface of the cutter body and matched with an electric-melting saddle-shaped three-way pipe fitting. The utility model is characterized in that more than three independent cutting edges are arranged on the lower end surface of the cutter body, the independent cutting edges are uniformly distributed in the axial direction of the cutter body, and the front cutting faces of the independent cutting edges are lowered from outside to inside and tilted inwards. By adopting the structural design that the cutting edges have the effect of inward scrap discharge, the cutter effectively solves the problem that the main pipe is blocked by scraps, is operated more safely and conveniently with labor-saving effects.
Description
Technical field
The utility model relates to the buried pipeline aid, particularly a kind of cutter that is used for electric smelting saddle type tee pipe fitting.
Background technology
At present, the buried pipeline connector is the polyethylene electric melting pipe fittings particularly, has been known technology.The threeway of electric smelting saddle type is a kind of in the buried pipeline connector, and the effect of electric smelting saddle type tee pipe fitting is under pipeline situation with pressure, and rotary drilling on pipeline is drawn a branch road.The threeway of electric smelting saddle type specifically is to utilize its cutter that carries perforate on pipeline.
Wherein, described cutter comprises the cutter hub of inner hollow, and the top of described cutter hub outer surface is provided with the external screw thread that matches with the threeway of described electric smelting saddle type, and the bottom of described cutter hub is provided with a circle cutting edge.Wherein, external screw thread is common triangle thread.The cutter of this structure is relatively required great effort in the use, and after using described cutter boring, has the problem of debris blocking trunk line.
The utility model content
In order to solve the problem of prior art boring back debris blocking trunk line, the utility model embodiment provides a kind of cutter that is used for electric smelting saddle type tee pipe fitting.Described technical scheme is as follows:
A kind of cutter that is used for electric smelting saddle type tee pipe fitting, described cutter comprises columniform cutter hub, described cutter hub inner hollow, the top of described cutter hub outer surface is provided with the external screw thread that matches with the threeway of described electric smelting saddle type, the lower surface of described cutter hub is provided with the independent cutting edge more than three, and described independent cutting edge is all axially uniform along described cutter hub, all high outside and low outside and inclination inwards of the rake face of described independent cutting edge, can make chip-flowing cutter hub inside, form the introversive structure of walking to consider to be worth doing.
In order to improve the moment of operative orientation, the moment when promptly holing, described external screw thread is a saw-tooth thread.
In order to make boring procedure more laborsaving, described cutter hub is provided with steam vent.
The beneficial effect of the technical scheme that the utility model embodiment provides is: compared to existing technology, the utility model has adopted the introversive cutting edge structure design of walking to consider to be worth doing, has effectively avoided the problem of debris blocking trunk line.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, to do one to the accompanying drawing that uses among the embodiment below introduces simply, apparently, below listed accompanying drawing only be embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the assembling schematic diagram of described cutter of the utility model embodiment and electric smelting saddle type tee pipe fitting;
Fig. 2 is the main cutaway view of the described cutter of the utility model embodiment;
Fig. 3 is an externally threaded enlarged drawing in the described cutter;
Fig. 4 is the enlarged drawing of looking up of Fig. 2.
In the accompanying drawing, the component list of each label representative is as follows:
1 electric smelting saddle type threeway, 2 cutters, 2.1 cutter hubs, 2.2 independent cutting edges, 2.3 external screw threads, 2.4 rake faces.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model embodiment is described in further detail below in conjunction with accompanying drawing.
Shown in Fig. 1-2, a kind of cutter that is used for electric smelting saddle type tee pipe fitting comprises the cutter hub 2.1 of inner hollow, and the top of cutter hub 2.1 outer surfaces is provided with the external screw thread 2.3 that matches with electric smelting saddle type threeway 1, and the bottom of cutter hub 2.1 is processed with a plurality of independent cutting edges 2.2.As shown in Figure 4, all independent cutting edges 2.2 are distributed on the inboard of bottom end face of described cutter hub 2.1, and introversion is walked bits.Breach between the bottom end face of independent cutting edge 2.2 and cutter hub 2.1 is a rake face 2.4, and all high outside and low outside and inclination (referring to Fig. 4) inwards of all rake faces 2.4 can make chip-flowing cutter hub inside, forms the introversive structure of walking to consider to be worth doing.The quantity of independent cutting edge 2.2 is at least three, adopts three independent cutting edges 2.2 in this example, can also be according to the quantity of the size design independence cutting edge 2.2 of cutter 2 diameters when specifically implementing.
As shown in Figure 1, cutter 2 described in the utility model is installed in the electric smelting saddle type threeway 1, rotate on pipeline by cutter 2 and to carry out perforate, pieces of crumb (on the vial road cut part) enters into cutter 2 the insides under the situation of rotation, can not stay waste material and produce and pollute.Therefore the utility model makes cutting swarf all collect cutter hub inside, has avoided the debris blocking trunk line, and the independent cutting edge 2.2 of this structure, and cutter 2 can better be cut pipeline.
In order to improve the moment of operative orientation, the moment when promptly holing, as shown in Figure 3, external screw thread 2.3 is a saw-tooth thread.Its profile of tooth is thicker, has reduced the damage to the plastics internal thread.In this example, the angle of rifling of saw-tooth thread, a side are 30 °, and opposite side is 3 °.Therefore, operative orientation is stressed bigger, and the screw thread transverse tooth thickness is bigger, makes the internal thread in the electric smelting tee pipe fitting firmer, thereby more safe.
As shown in Figure 2, cutter hub 2.1 is provided with steam vent 2.5, make cutter hub 2.1 inner and outer air pressures equate, so boring procedure is more laborsaving.In this example, steam vent 2.5 is arranged on the side of cutter hub 2.1.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. cutter that is used for electric smelting saddle type tee pipe fitting, described cutter comprises columniform cutter hub, described cutter hub inner hollow, the top of described cutter hub outer surface is provided with the external screw thread that matches with the threeway of described electric smelting saddle type, it is characterized in that, the lower surface of described cutter hub is provided with the independent cutting edge more than three, and described independent cutting edge is all axially uniform along described cutter hub, all high outside and low outside and inclination inwards of the rake face of described independent cutting edge.
2. cutter as claimed in claim 1 is characterized in that, described external screw thread is a saw-tooth thread.
3. cutter as claimed in claim 1 or 2 is characterized in that described cutter hub is provided with steam vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200773482U CN202052969U (en) | 2011-03-22 | 2011-03-22 | Cutter used for electric-melting saddle-shaped three-way pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200773482U CN202052969U (en) | 2011-03-22 | 2011-03-22 | Cutter used for electric-melting saddle-shaped three-way pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202052969U true CN202052969U (en) | 2011-11-30 |
Family
ID=45012956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200773482U Expired - Fee Related CN202052969U (en) | 2011-03-22 | 2011-03-22 | Cutter used for electric-melting saddle-shaped three-way pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202052969U (en) |
-
2011
- 2011-03-22 CN CN2011200773482U patent/CN202052969U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20180322 |