CN2670723Y - Wiring terminal of electric melting pipe - Google Patents
Wiring terminal of electric melting pipe Download PDFInfo
- Publication number
- CN2670723Y CN2670723Y CNU2003201292432U CN200320129243U CN2670723Y CN 2670723 Y CN2670723 Y CN 2670723Y CN U2003201292432 U CNU2003201292432 U CN U2003201292432U CN 200320129243 U CN200320129243 U CN 200320129243U CN 2670723 Y CN2670723 Y CN 2670723Y
- Authority
- CN
- China
- Prior art keywords
- electric melting
- electrical heating
- heating wire
- wiring terminal
- utility
- 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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- Lining Or Joining Of Plastics Or The Like (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model provides a wiring terminal of electric melting pipes, belonging to the technical field of pipes. The utility model is used to solve the problems that the contact resistance is big and the phenomenon of circuit break is easy to happen in the prior art. The utility model is formed from a contact end which is connected with an external connected electric melting welding machine and another contact end which is connected with an electrical heating wire. A wiring hole is arranged on the circumferential surface of the contact end of the electrical heating wire, and a screw is arranged on the outer end surface of the contact end of the electrical heating wire. The screw is communicated with the wiring hole, and a jackscrew is arranged in the screw. Compared with the prior art, the utility model has the advantages of simple structure, easy use, and high reliability of connection; being suitable for the connection of electric melting pipes with plastic skeleton or steel skeleton.
Description
Technical field
The utility model relates to the wiring terminal of a kind of plastics or steel skeleton plastic clad pipe class electric melting pipe fittings, especially electric melting pipe fittings, belongs to the pipe fitting technical field.
Background technique
Steel skeleton plastic clad pipe be with the steel wire is strengthen skeleton, be a kind of novel two-sided anticorrosion, the withstand voltage duct products of matrix with high density polyethylene (HDPE) (HDPE) or medium density polyethylene (MDPE).At present, the Placement of polyethylene (PE) pipe or steel skeleton plastic clad pipe mainly is that the electric smelting connection is connected with flange, is connected to the master with electric smelting especially.Steel skeleton plastic clad pipe manufacturer generally adopts at present, and to be wiring terminal connect or the Placement of solderless wrapped connection with electrical heating wire is stubborn, the material of electric melting pipe fittings is the composite material of plastics or plastics and Steel Skeleton, treat to install on the jointed tubular workpieces electric melting pipe fittings at two, internal surface at electric melting pipe fittings is wound with electrical heating wire, and the wiring terminal that is connected with electrical heating wire is equipped with in its end.One annular groove is arranged at described wiring terminal bottom, makes a call to a through hole in the middle of groove.Electrical heating wire is tightened after passing and twining 2～3 circles behind the hole.The problem that adopts this mode of connection to exist is, when molding and forming, under High Temperature High Pressure, partly plastic can be got between wiring terminal and the electrical heating wire, have only the small part electric fuse to contact with wiring terminal, thereby resistance can occur and become big phenomenon, serious resistance can reach original several times, have in addition breaking phenomena appears.
Summary of the invention
The purpose of this utility model is to overcome the defective that exists in the existing structure and a kind of electric melting pipe fittings wiring terminal of simple in structure, easy to use, good connecting effect is provided.
Problem described in the utility model is realized by following technological scheme:
A kind of electric melting pipe fittings wiring terminal, comprise the contact jaw 1 that is connected with external electro-fusion welding machine and with electric heating wire contact jaw 2, its improvements are, be provided with a wire connecting hole 3 at described electrical heating wire contact jaw circumferential surface, be provided with screw in its exterior edge face, screw communicates with wire connecting hole 3, and jackscrew 4 is housed in the screw.
Above-mentioned electric melting pipe fittings wiring terminal, described resistance wire contact jaw circumferential surface is provided with a groove, and wire connecting hole 3 is located in the groove.
The utility model adopts the jackscrew fastening means, so good connecting effect, and unreal, breaking phenomena can not appear connecting in the reliability height.
Description of drawings:
Fig. 1 is the utility model sectional view;
Fig. 2 is another embodiment's a structural representation.
Each unit number is among the figure: 1 electro-fusion welding machine contact jaw; 2 resistance wire contact jaws; 3 wire connecting holes; 4 jackscrews.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
When the utility model uses, earlier electrical heating wire is passed wire connecting hole 3, tighten after twining 2-3 circle (also can not around) again, utilize jackscrew 4 that electrical heating wire is tightly withstood at last.Like this, an end of wiring terminal is connected with resistance wire, and the other end is connected with electro-fusion welding machine.The utility model and original technology structure compared are simple, easy to operate, and the connection reliability height is applicable to the connection of plastics or steel skeleton plastic clad pipe electric melting pipe fittings wiring terminal.
Claims (2)
1, a kind of electric melting pipe fittings wiring terminal, comprise contact jaw (1) that is connected with external electro-fusion welding machine and the contact jaw that is connected with electrical heating wire (2), it is characterized in that, on described electrical heating wire contact jaw circumferential surface, be provided with a wire connecting hole (3), be provided with screw in its exterior edge face, screw communicates with wire connecting hole (3), and jackscrew (4) is housed in the screw.
2, a kind of electric melting pipe fittings wiring terminal according to claim 1 is characterized in that, is provided with a groove at described electrical heating wire contact jaw circumferential surface, and wire connecting hole (3) is located in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201292432U CN2670723Y (en) | 2003-12-26 | 2003-12-26 | Wiring terminal of electric melting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201292432U CN2670723Y (en) | 2003-12-26 | 2003-12-26 | Wiring terminal of electric melting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2670723Y true CN2670723Y (en) | 2005-01-12 |
Family
ID=34477213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201292432U Expired - Fee Related CN2670723Y (en) | 2003-12-26 | 2003-12-26 | Wiring terminal of electric melting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2670723Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591660A (en) * | 2018-05-16 | 2018-09-28 | 宁波恒元精工管阀科技有限公司 | Wiring terminal of electric melting pipe |
-
2003
- 2003-12-26 CN CNU2003201292432U patent/CN2670723Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591660A (en) * | 2018-05-16 | 2018-09-28 | 宁波恒元精工管阀科技有限公司 | Wiring terminal of electric melting pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |