CN2894014Y - Heat-resisting flexible electric conduit - Google Patents
Heat-resisting flexible electric conduit Download PDFInfo
- Publication number
- CN2894014Y CN2894014Y CN 200620023663 CN200620023663U CN2894014Y CN 2894014 Y CN2894014 Y CN 2894014Y CN 200620023663 CN200620023663 CN 200620023663 CN 200620023663 U CN200620023663 U CN 200620023663U CN 2894014 Y CN2894014 Y CN 2894014Y
- Authority
- CN
- China
- Prior art keywords
- conduit
- heat
- flexible electric
- spiral
- resisting flexible
- 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 - Lifetime
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Abstract
The utility model discloses a heat-resistant flexible electrical conduit which is structured by spiral buckling for metal bar materials with ''S''-shaped cross section, whereinthe radial clearance is 0.01-0.05mm for the adjacent side between ''S''-shaped head and end on the second spiral section and the first and third spiral section,is characterized in that: the thermal-insulating layer is packed on the exterior of conduit with wire mesh to ensure high-temperature for the conduit and improve safety for transmission line. The utility model is a significant innovation for the prior technology.
Description
Technical field
The utility model relates to a kind of electric installation conduit, particularly relates to a kind of electric installation of using with heat-resisting flexible electric conduit in hot environment.
Background technology
The electric installation of State Standard of the People's Republic of China is with in the catheter, electric installation is divided into from the renaturation conduit with conduit, flexible conduit, flexible conduit is a flexible conduit etc., now also to be flexible metal conduit be to be formed by the bonding jumper spiral snapping that cross sections is approximately serpentine to the metal hose that uses, though this kind conduit can be crooked, but the defective that exists is to formalize, after external force disappears, just return to original form in short time, belong to from the renaturation conduit, thereby can only be applied in circuit to the short distance line between electrical appliance, can not in the electric wiring of longer distance is laid, make conduit and use.For addressing the above problem, the applicant applied for a kind of flexible electric conduit, the patent No. 200520008083.5 on March 15th, 2005.But in use find, be unsuitable for use in hot environment.The coated thing of the lead that prior art is used in hot environment, there is short circuit hidden danger in the easy fusion of plastic cement foreskin as the electrical wire of high temperature melting furnace uses; Metal hose readily conducts heat again, is unsuitable for using.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, provide a kind of can be after the external force bending solid shape, can be used for hot environment, the long high temperature resistant flexible electric conduit of laying apart from electric wiring.
The technical solution of the utility model is to realize like this, heat-resisting flexible electric conduit, the metal bar material spiral snapping that is approximately serpentine by cross section is formed conduit, second spiral fragment serpentine head of intercepting and afterbody and with its snapping first, the radial clearance of triple helical fragment adjacent side is 0.01～0.05mm, it is characterized in that, in conduit outer coated heat insulation layer is arranged, oven wire mesh blanket is arranged in heat insulation layer outer coated.
As a kind of improvement of the present utility model, be coated with insulating barrier at described pipe inner wall.
Because the heat-resisting flexible electric conduit of the utility model is on the basis of existing technology, specification requirement in conjunction with high temperature resistant environment, through test of many times, by prior art by cross sections be approximately that the bonding jumper spiral snapping of serpentine forms from the second spiral fragment serpentine head of renaturation conduit intercepting and afterbody and with its snapping first, the radial clearance of triple helical fragment adjacent side changes into 0.01～0.05mm by being about 1mm.Because radial clearance is dwindled, behind the conduit of power effect outside, owing to the frictional force effect, conduit can be fixed voluntarily by the shape of bending between each spiral fragment of intercepting.In conduit outer coated heat insulation layer is arranged, in heat insulation layer outer coated oven wire mesh blanket is arranged, having guaranteed the resistance to elevated temperatures of this conduit, used the transmission line under the coated hot environment of this conduit to improve electrical safety greatly, is the once great innovation to prior art.
Description of drawings
Fig. 1 is heat-resisting flexible electric conduit structural representation.
Fig. 2 analyses and observe partial enlarged drawing for heat-resisting flexible electric conduit.
In Fig. 1, Fig. 2, the heat-resisting flexible electric conduit of 1-, 2-oven wire mesh blanket, 3-heat insulation layer, 4-vessel layers, 5-insulating barrier.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail, among Fig. 1, Fig. 2, the vessel layers (4) of heat-resisting flexible electric conduit (1) is formed by the bar material spiral snapping that cross section is approximately serpentine, the serpentine head of second spiral fragment of intercepting and afterbody and with its snapping first, the radial clearance of the adjacent side of triple helical fragment is 0.01～0.05mm.Behind the conduit of power effect outside, owing to the frictional force effect, conduit can be fixed voluntarily by the shape of bending between each spiral fragment.Making the utility model is flexible conduit by prior art from one transition of replica conduit, in vessel layers (4) outer coated heat insulation layer (3) is arranged, in heat insulation layer (3) outer coated oven wire mesh blanket (2) is arranged, insulating barrier (5) is arranged in vessel layers (4) coated inner wall.Having guaranteed the resistance to elevated temperatures of this conduit, used the transmission line under the coated hot environment of this conduit to improve electrical safety greatly, is the once great innovation to prior art.Described heat insulation layer (3) adopts asbestos or mica material.Described insulating barrier (5) is a pipe inner wall plastic-blasting layer.
Claims (2)
1, heat-resisting flexible electric conduit, the metal bar material spiral snapping that is approximately serpentine by cross section is formed conduit, second spiral fragment serpentine head of intercepting and afterbody and with its snapping first, the radial clearance of triple helical fragment adjacent side is 0.01～0.05mm, it is characterized in that, in conduit outer coated heat insulation layer is arranged, oven wire mesh blanket is arranged in heat insulation layer outer coated.
2, heat-resisting flexible electric conduit according to claim 1 is characterized in that, is coated with insulating barrier at described pipe inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620023663 CN2894014Y (en) | 2006-03-11 | 2006-03-11 | Heat-resisting flexible electric conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620023663 CN2894014Y (en) | 2006-03-11 | 2006-03-11 | Heat-resisting flexible electric conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2894014Y true CN2894014Y (en) | 2007-04-25 |
Family
ID=38062166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620023663 Expired - Lifetime CN2894014Y (en) | 2006-03-11 | 2006-03-11 | Heat-resisting flexible electric conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2894014Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736401A (en) * | 2018-08-13 | 2018-11-02 | 江苏捷通管业科技有限公司 | A kind of telescoping cable protecting pipe |
-
2006
- 2006-03-11 CN CN 200620023663 patent/CN2894014Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736401A (en) * | 2018-08-13 | 2018-11-02 | 江苏捷通管业科技有限公司 | A kind of telescoping cable protecting pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070425 |
|
| EXPY | Termination of patent right or utility model |