CN203761593U - Novel electric heating tube - Google Patents
Novel electric heating tube Download PDFInfo
- Publication number
- CN203761593U CN203761593U CN201420118854.5U CN201420118854U CN203761593U CN 203761593 U CN203761593 U CN 203761593U CN 201420118854 U CN201420118854 U CN 201420118854U CN 203761593 U CN203761593 U CN 203761593U
- Authority
- CN
- China
- Prior art keywords
- protective sleeve
- electric heating
- heating wire
- electrothermal tube
- protective sleeves
- 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
Links
Abstract
The utility model discloses a novel electric heating tube which comprises a conducting rod, an electric heating wire and a casing of the electric heating tube, wherein the inner wall of the casing is provided with multiple sections of protective sleeves, the protective sleeves are tubular and sleeve the electric heating wire, the number of the protective sleeves is no less than 3, and the ratio of the width L1 of the protective sleeves to the spacing L2 between the protective sleeves is 1 to 3.5. Due to the structure of the multiple sections of protective sleeves, it is ensured that most of the electric heating wire is filled with magnesium oxide powder. The wire is not deviated in the compression process of a knocking type pipe contracting machine, and excellent electrical performance is ensured.
Description
Technical field
The utility model relates to a kind of electrothermal tube.
Background technology
When electrothermal tube length longer, at 4000-10000mm, diameter is thinner again, electrothermal tube is filled in the process of compressing at hamming type machine for shrinking after magnesium powder, during due to work, vibrate excessive, in the middle of causing originally occuping in pipe pipe there is silk partially in heating wire, causes electrical strength disqualified upon inspection, or silk is scrapped with the rebuffed direct short-circuit of tube wall.In order to solve this technical problem, general way is that whole pipe all directly does inner sheath with the cylindrical magnesium pipe baking.But this technique is taken material, time-consuming, greatly strengthened enterprise's production cost, and quality is not high, has reduced product quality.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of electrothermal tube for above drawback, utilizes more piece sleeve pipe structure, ensures that in electrothermal tube, the overwhelming majority is filled by magnesia powder.And in the process of hamming type machine for shrinking compression, there is not inclined to one side silk, guarantee good electric property.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of electrothermal tube, comprises contact rod, heating wire and electrothermal tube shell, wherein, on described electrothermal tube outer casing inner wall, is provided with more piece protective sleeve, and described protective sleeve in a tubular form, is linked in heating wire surrounding, and described protective sleeve quantity is no less than 3 joints; The ratio of spacing L2 between described protective sleeve width L1 and protective sleeve is 0.8～1.2:3～4, and preferably, the ratio of the spacing L2 between described protective sleeve width L1 and protective sleeve is 1:3.5.
Beneficial effect; Utilize more piece sleeve pipe structure, avoid due to when work vibrate excessive, cause originally occuping pipe in pipe in the middle of heating wire there is silk partially, cause the situation of electrical strength disqualified upon inspection to occur, and protection heating wire, avoid silk to be rebuffed and to cause short circuit to scrap with tube wall.Through the measuring and calculating of science repeatedly, in the time that the ratio of the spacing L2 between protective sleeve width L1 and protective sleeve is 1:3.5, can either ensure that in electrothermal tube, the overwhelming majority is filled by magnesia powder, also can be best heating wire is carried out to protective effect.If the ratio of the spacing L2 between protective sleeve width L1 and protective sleeve is less than 1:3.5, protective sleeve spacing is excessive, and heating wire the possibility of silk partially occurs and strengthens, and cannot ensure its electric property, reduces product result of use; If the ratio of the spacing L2 between protective sleeve width L1 and protective sleeve is greater than 1:3.5, protective sleeve spacing is too small, cannot ensure that in electrothermal tube, the overwhelming majority is filled by magnesia powder, reduces electric heating effect.More piece protective sleeve ensures inclined to one side silk does not occur in the process of electrothermal tube hamming type machine for shrinking compression, guarantees good electric property.The utility model has improved the quality of product greatly, has extended the useful life of electrothermal tube.
Brief description of the drawings
Fig. 1 is utility model exploded view.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment
As shown in the figure, a kind of electrothermal tube, comprises contact rod 1, heating wire 2 and electrothermal tube shell 3, wherein, on described electrothermal tube shell 3 inwalls, be provided with more piece protective sleeve 4, described protective sleeve 4 in a tubular form, be linked in heating wire 3 surroundings, described protective sleeve 4 quantity are no less than 3 joints; The ratio of spacing L2 between described protective sleeve 4 width L1 and protective sleeve 4 is 1:3.5.
Beneficial effect; Utilize more piece sleeve pipe structure, avoid due to when work vibrate excessive, cause originally occuping pipe in pipe in the middle of heating wire there is silk partially, cause the situation of electrical strength disqualified upon inspection to occur, and protection heating wire, avoid silk to be rebuffed and to cause short circuit to scrap with tube wall.Through the measuring and calculating of science repeatedly, in the time that the ratio of the spacing L2 between protective sleeve width L1 and protective sleeve is 1:3.5, can either ensure that in electrothermal tube, the overwhelming majority is filled by magnesia powder, also can be best heating wire is carried out to protective effect.If the ratio of the spacing L2 between protective sleeve width L1 and protective sleeve is less than 1:3.5, protective sleeve spacing is excessive, and heating wire the possibility of silk partially occurs and strengthens, and cannot ensure its electric property, reduces product result of use; If the ratio of the spacing L2 between protective sleeve width L1 and protective sleeve is greater than 1:3.5, protective sleeve spacing is too small, cannot ensure that in electrothermal tube, the overwhelming majority is filled by magnesia powder, reduces electric heating effect.More piece protective sleeve ensures inclined to one side silk does not occur in the process of electrothermal tube hamming type machine for shrinking compression, guarantees good electric property.The utility model has improved the quality of product greatly, has extended the useful life of electrothermal tube.
The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, all should be encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (1)
1. an electrothermal tube, comprises contact rod, heating wire and electrothermal tube shell, it is characterized in that, on described electrothermal tube outer casing inner wall, is provided with more piece protective sleeve, and described protective sleeve in a tubular form, is linked in heating wire surrounding, and described protective sleeve quantity is no less than 3 joints; The ratio of spacing L2 between described protective sleeve width L1 and protective sleeve is 0.8～1.2:3～4, and preferably, the ratio of the spacing L2 between described protective sleeve width L1 and protective sleeve is 1:3.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118854.5U CN203761593U (en) | 2014-03-17 | 2014-03-17 | Novel electric heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118854.5U CN203761593U (en) | 2014-03-17 | 2014-03-17 | Novel electric heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203761593U true CN203761593U (en) | 2014-08-06 |
Family
ID=51256820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420118854.5U Expired - Fee Related CN203761593U (en) | 2014-03-17 | 2014-03-17 | Novel electric heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203761593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864864A (en) * | 2016-04-12 | 2016-08-17 | 赵士立 | Electrothermal pipe type electrothermal heating barrel |
-
2014
- 2014-03-17 CN CN201420118854.5U patent/CN203761593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864864A (en) * | 2016-04-12 | 2016-08-17 | 赵士立 | Electrothermal pipe type electrothermal heating barrel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202199890U (en) | Anti-scald electric soldering iron | |
| CN203761593U (en) | Novel electric heating tube | |
| CN204524482U (en) | A kind of electric iron | |
| CN207800535U (en) | A kind of scalable fuse | |
| CN205793413U (en) | A kind of U-shaped electrothermal tube detection debugging apparatus | |
| CN205017613U (en) | Novel electric heating pipe is with drawing forth stick | |
| CN204577317U (en) | Vacuum switch tube | |
| CN207676751U (en) | A kind of fuse-resistor | |
| CN203931807U (en) | A kind of electric capacity with explosion-proof shear knife | |
| CN105357779A (en) | Electrothermal tube plugging frame | |
| CN104882234A (en) | Power resistor of three-dimensional network structure and processing technique of power resistor | |
| CN213462383U (en) | Heating pipe heating core structure with magnesium powder filling uniform effect | |
| CN204178752U (en) | A kind of movable cable | |
| CN205160812U (en) | Energy -saving solar heating pipe | |
| CN204187271U (en) | SF 6gas filling bottle heating equipment | |
| CN204088741U (en) | A kind of plug and socket | |
| CN204234930U (en) | A kind of semi-automatic electric iron | |
| CN205264410U (en) | High -speed wire rod of flat USB3. 0 of high elasticity | |
| CN203159955U (en) | Heating tube of washing machine | |
| CN209822404U (en) | Temperature safety resistor | |
| CN208112992U (en) | A kind of electrothermal tube seal | |
| CN205793429U (en) | A kind of electrothermal tube and heating wire bushing device | |
| CN208767606U (en) | A kind of spiral locking connector of CO2 laser pipe electrode | |
| CN207246561U (en) | A kind of anchor ear | |
| CN204119561U (en) | A kind of electrothermal tube improving the electric heater of terminal |
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: 20140806 Termination date: 20190317 |