CN2729491Y - Electric smelting pipe fitting with novel observation hole - Google Patents
Electric smelting pipe fitting with novel observation hole Download PDFInfo
- Publication number
- CN2729491Y CN2729491Y CN 200420061299 CN200420061299U CN2729491Y CN 2729491 Y CN2729491 Y CN 2729491Y CN 200420061299 CN200420061299 CN 200420061299 CN 200420061299 U CN200420061299 U CN 200420061299U CN 2729491 Y CN2729491 Y CN 2729491Y
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- Prior art keywords
- cavity
- peep hole
- observation hole
- electric
- novel
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- Expired - Fee Related
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Abstract
The utility model provides an electric smelting pipe fitting with novel observation hole, which is composed of a pipe body, an observation hole which is arranged on the pipe body, an electric heating wire which is embedded in the inner wall of the pipe body, and at least two electrodes with protective covers which are connected with the electric heating wire. Wherein the observation hole is composed of a cavity which is opened in the pipe body, an observation column in the cavity which is connected with the bottom of the cavity, and at leat a convex area which is arranged on the inner wall or at the upper end of the cavity. Because the electric melting pipe fitting is provided with the novel observation hole, the welding quality of the electric melting pipe fitting is assured; the generations of the welding failure and the bodily injury are avoided; the safety of the engineering construction is assured; the construction progress is improved; the engineering cost is reduced. The utility model is mainly used in a plurality of fields of the pressure piping construction such as fuel gas, water supply, chemical industry, etc.
Description
Technical field
The utility model relates to the electric melting pipe fittings of using in a kind of pipe-line construction, particularly relates to a kind of electric melting pipe fittings that has novel peep hole.
Background technique
At present, the PE pipeline has been widely used in the pressure piping construction in a plurality of fields such as combustion gas, feedwater, chemical industry, and wherein, the connection of PE pipeline is crucial link in the pipework.Electric melting pipe fittings with its connect reliable, easy construction, construction equipment is few, the welding quality inspection directly perceived and used on pipeline connects by a large amount of.For checking whether welding quality is qualified, adopt and on the body of electric melting pipe fittings, peep hole is set, peep hole is by being arranged on the cavity on the body and being positioned at cavity and forming with the observation post that the body of cavity bottom is connected as a single entity.When the height that the observation post is emerged when welding reaches the altitude range of electric melting pipe fittings manufacturer appointment, promptly characterize the welding zone pressure and temp and meet the requirements, thereby judge that welding quality is qualified.But this peep hole is because the influence of existing field boundary construction environment, normal the post excessive height of emerging takes place to observe, the melt of emerging breaks under the effect of welding zone melt pressure, causes that melt is excessive very to cause injection, cause welding failure and personal injury accident, influence construction speed and engineering cost.
Summary of the invention
It is a kind of when guaranteeing its observation welding quality function that the purpose of this utility model is to provide, and also guarantees to deposit the welding procedure Security, and greatly improve the electric melting pipe fittings that has novel peep hole that is welded into power.
The electric melting pipe fittings that the utility model has novel peep hole comprises body and the peep hole that is arranged on the body, embeds the electric heating wire of inboard wall of tube body, is arranged at least two electrodes of being with protective housings and being connected with electric heating wire on the body.Wherein, peep hole is by the cavity of opening on body, the observation post that is positioned at cavity and links to each other with cavity bottom, and at least one projection that is arranged on cavity inner wall and/or upper end constitutes.Observing post can become one with body, also can be the individual components that inserts in the cavity.Projection can be point-like projection or annular projection, or the projection of other shape.Projection can become one with body, and this kind projection generally is positioned at cavity inner wall and/or cavity upper end; Also can be individual components, this kind projection generally cooperates with the cavity upper end; Or be aforementioned the two combination, the promptly existing projection that becomes one with body has the projection that cooperates with the cavity upper end again.Electric melting pipe fittings comprises electric smelting guide, electric smelting elbow and electric smelting special-shaped casing tube etc.
The working principle that the utility model has the electric melting pipe fittings of novel peep hole is, during construction, PE tubing inserts the electric melting pipe fittings endoporus that is mated, after the energising, the PE tubing corresponding site volumetric expansion that the electric heating wire that body is embedded in makes cavity bottom and is mated, produce melt pressure, observing post under the effect of this pressure is ejected with cavity floor, show and observe the post rising, under the continuous action of melt pressure, observe post and continue to rise, when cavity floor rises to boss, observe post and be subjected to stopping of boss, thereby the rising of post is observed in restriction, when observation post lifting height reaches the altitude range of electric melting pipe fittings producer requirement, represent that promptly the welding zone pressure and temp reaches the required value scope, judge that welding quality is qualified.
The advantage that the utility model has the electric melting pipe fittings of novel peep hole is owing to have the novel peep hole of this kind, not only can observe the welding situation, guarantee welding quality, greatly improved and be welded into power and welding efficiency, simultaneously, avoided guaranteeing the electric melting pipe fittings safety of construction owing to observing melt fracture or the injection that post ceaselessly rises and causes.Be mainly used in the connection of PE pipeline.
Embodiment
Fig. 1: the utility model structural representation
Fig. 2～Fig. 8: novel peep hole structural representation
Embodiment 1: the utility model comprises body 1 with the electric melting pipe fittings of novel observation hole, embeds pipe Heating wire 2 on the body inner hole wall is arranged on the peep hole 3 on the body 1, is arranged on the body 1 with anti-Guard shield 5 and the electrode 4 that is connected with heating wire 2. Wherein, peep hole 3 is by the cavity 6 of opening on body 1, The observation post 7 that is positioned at cavity 6 and becomes one with cavity 6 bottoms, and be arranged on cavity 6 inwalls On projection 8 consist of.
Embodiment 2: peep hole 3 is by the cavity of opening on body 16, the observation post 7 that is positioned at cavity 6 and becomes one with cavity 6 bottoms, and the projection 8 that is arranged on cavity 6 upper ends constitutes (Fig. 2).
Embodiment 3: peep hole 3 inserts the observation post 7 in the cavity 6 by the cavity of opening on body 16, and the projection 8 that is arranged on cavity 6 inwalls constitutes (Fig. 3).
Embodiment 4: peep hole 3 inserts the observation post 7 in the cavity 6 by the cavity of opening on body 16, and the projection 8 that cooperates with cavity 6 upper ends constitutes (Fig. 4).
Embodiment 5: peep hole 3 inserts the observation post 7 in the cavity 6 by the cavity of opening on body 16, and the projection 8 that cooperates with cavity 6 upper ends constitutes (Fig. 5).
Embodiment 6: peep hole 3 inserts the observation post 7 in the cavity 6 by the cavity of opening on body 16, and the projection 8 that cooperates with cavity 6 upper ends constitutes (Fig. 6) with the projection 8 that is arranged on cavity 6 inwalls.
Embodiment 7: peep hole 3 is by the cavity of opening on body 16, the observation post 7 that is positioned at cavity 6 and becomes one with cavity 6 bottoms, and the projection 8 that cooperates with cavity 6 upper ends and the projection 8 that is arranged on cavity 6 inwalls constitute (Fig. 7).
Embodiment 8: peep hole 3 inserts the observation post 7 in the cavity 6 by the cavity of opening on body 16, and the projection 8 that is arranged on cavity 6 upper ends and the inwall constitutes.
Claims (3)
1, a kind of electric melting pipe fittings that has novel peep hole, comprise body and the peep hole that is arranged on the body, inboard wall of tube body is embedded with electric heating wire, the electrode that body is provided with at least two band protective housings and is connected with electric heating wire, it is characterized in that peep hole is by the cavity of opening on body, the observation post that is positioned at cavity and links to each other, and at least one the projection formation that is arranged on cavity inner wall and/or upper end with cavity bottom.
2, the electric melting pipe fittings that has novel peep hole as claimed in claim 1 is characterized in that projection becomes one with body, or the parts that cooperate with the cavity upper end, or is aforementioned the two combination.
3, the electric melting pipe fittings that has novel peep hole as claimed in claim 1 is characterized in that the observation post that links to each other with cavity bottom or becomes one with body, or inserts the individual components in the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061299 CN2729491Y (en) | 2004-09-20 | 2004-09-20 | Electric smelting pipe fitting with novel observation hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061299 CN2729491Y (en) | 2004-09-20 | 2004-09-20 | Electric smelting pipe fitting with novel observation hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2729491Y true CN2729491Y (en) | 2005-09-28 |
Family
ID=35048268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420061299 Expired - Fee Related CN2729491Y (en) | 2004-09-20 | 2004-09-20 | Electric smelting pipe fitting with novel observation hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2729491Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788219A (en) * | 2012-07-17 | 2012-11-21 | 山东东宏管业有限公司 | Electric smelting plastic pipe fitting for plastic pipeline connection and producing method of electric smelting plastic pipe fitting |
| CN108426113A (en) * | 2018-05-16 | 2018-08-21 | 宁波恒元精工管阀科技有限公司 | A kind of electric melting pipe fittings |
| CN109058637A (en) * | 2018-09-21 | 2018-12-21 | 江特科技股份有限公司 | Cloth wire form electric melting pipe fittings after a kind of |
-
2004
- 2004-09-20 CN CN 200420061299 patent/CN2729491Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788219A (en) * | 2012-07-17 | 2012-11-21 | 山东东宏管业有限公司 | Electric smelting plastic pipe fitting for plastic pipeline connection and producing method of electric smelting plastic pipe fitting |
| CN108426113A (en) * | 2018-05-16 | 2018-08-21 | 宁波恒元精工管阀科技有限公司 | A kind of electric melting pipe fittings |
| CN109058637A (en) * | 2018-09-21 | 2018-12-21 | 江特科技股份有限公司 | Cloth wire form electric melting pipe fittings after a kind of |
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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 |