CN204206490U - A kind of heating cable series connection structure - Google Patents
A kind of heating cable series connection structure Download PDFInfo
- Publication number
- CN204206490U CN204206490U CN201420475350.9U CN201420475350U CN204206490U CN 204206490 U CN204206490 U CN 204206490U CN 201420475350 U CN201420475350 U CN 201420475350U CN 204206490 U CN204206490 U CN 204206490U
- Authority
- CN
- China
- Prior art keywords
- fixed cover
- metallic sheath
- inner core
- insulating case
- heating
- 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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Abstract
The utility model relates to a kind of heating cable series connection structure, comprise heating wire, the fixed cover that metallic sheath and insulating material are made, described heating wire is made up of inner core and the insulating case be coated on outside described inner core, described metallic sheath is sleeved on the contact of the inner core of adjacent two heating wires, described fixed cover is sleeved on the outside of described metallic sheath, it is characterized in that: between described metallic sheath and described fixed cover, there is gap, the two ends of described fixed cover are connected with the insulating case of adjacent two heating wires respectively, described insulating case is provided with circumferential registration groove, the inner peripheral surface of described fixed cover is provided with the circumferential protrusion with described circumferential registration slot fit, the internal periphery of described fixed cover has chamfering.This structure, while ensure that the function that fixed cover is protected metallic sheath, can avoid metallic sheath to be subject to axial force, thus effectively avoids metallic sheath to be shifted, and eliminates safe hidden trouble.
Description
Technical field
The utility model belongs to field of cable technology, particularly relates to a kind of heating cable series connection structure.
Background technology
Heating cable makes the construction of cable, take electric power as the energy, utilizes alloy resistance wire to carry out heating power, reach the effect of heating or insulation.Usually have singly lead and two lead point, be called heating cable.Heating cable is made up of inner core and the insulating barrier having coated inner core.At present, heating cable is due to the restriction of materials and structures, and cause the use length of heating cable to be restricted, the inner core of heating cable links together by root mainly through the mode of serial connection by people, and there is tie point between adjacent two heating cables, this tie point is wound around by inner core and forms, in order to carry out energising protection to tie point, usually metallic sheath is set at tie point place, with metallic sheath, tie point is wrapped up, on the one hand for the protection of tie point, metallic sheath has conducting function on the other hand, can promote that the energising of tie point is smooth and easy, fix the chuck that plastics are made afterwards again outside metallic sheath.But, be easy to the displacement of the metallic sheath causing fixed cover inside when clamping head or cable use and pull, make metallic sheath can not cover tie point completely, cause tie point to be revealed, occur leaky, there is great potential safety hazard.
Summary of the invention
The utility model is the technical problem solving in known technology the metallic sheath that exists and be easily shifted and provide a kind of heating cable series connection structure that metallic sheath can be prevented to be shifted.
The technical scheme that the utility model is taked for the technical problem existed in solution known technology is: a kind of heating cable series connection structure, comprise heating wire, the fixed cover that metallic sheath and insulating material are made, described heating wire is made up of inner core and the insulating case be coated on outside described inner core, described metallic sheath is sleeved on the contact of the inner core of adjacent two heating wires, described fixed cover is sleeved on the outside of described metallic sheath, it is characterized in that: between described metallic sheath and described fixed cover, there is gap, the two ends of described fixed cover are connected with the insulating case of adjacent two heating wires respectively, described insulating case is provided with circumferential registration groove, the inner peripheral surface of described fixed cover is provided with the circumferential protrusion with described circumferential registration slot fit, the internal periphery of described fixed cover has chamfering.
The utility model can also adopt following technical measures:
Described insulating case is provided with vertically two circumferential registration grooves.
The advantage that the utility model has and good effect are: because the utility model adopts as above technical scheme; be connected with the insulating case of heating wire by the two ends of fixed cover; and leave gap between fixed cover and metallic sheath; this structure is while ensure that the function that fixed cover is protected metallic sheath; metallic sheath can be avoided to be subject to axial force; thus effectively avoid metallic sheath to be shifted, eliminate safe hidden trouble.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, metallic sheath; 2, fixed cover; 2-1, circumferential protrusion; 3, inner core; 4, insulating case; 4-1, circumferential registration groove.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of heating cable series connection structure, comprise the fixed cover 2 that heating wire, metallic sheath 1 and insulating material are made.Heating wire is made up of inner core 3 and the insulating case 4 be coated on outside described inner core 3.Metallic sheath 1 is wrapped in the contact place of the inner core 3 of two adjacent heating wires.Fixed cover 2 is sleeved on the outside of described metallic sheath 1, to play the protective effect to metallic sheath 1.The two ends of fixed cover 2 are connected with the insulating case 4 of two heating wires respectively, and have gap between metallic sheath 1 and described fixed cover 2.Said structure, while guarantee fixed cover 2 is reliably installed, turn eliminates contacting directly between fixed cover 2 and metallic sheath 1, thus avoids fixed cover 2 External Force Acting in metallic sheath 1, metallic sheath 1 to be shifted.
In order to make fixed cover 2 reliable and Fast Installation location, described insulating case 4 is provided with circumferential registration groove 4-1, and the inner peripheral surface of described fixed cover 2 is provided with the circumferential protrusion 2-1 coordinated with described circumferential registration groove 4-1, and the internal periphery of described fixed cover 2 has chamfering.
Claims (2)
1. a heating cable series connection structure, comprise heating wire, the fixed cover (2) that metallic sheath (1) and insulating material are made, described heating wire is made up of inner core (3) and the insulating case (4) be coated on outside described inner core (3), described metallic sheath (1) is sleeved on the contact of inner core (3) of adjacent two heating wires, described fixed cover (2) is sleeved on the outside of described metallic sheath (1), it is characterized in that: between described metallic sheath (1) and described fixed cover (2), there is gap, the two ends of described fixed cover (2) are connected with the insulating case (4) of adjacent two heating wires respectively, described insulating case (4) is provided with circumferential registration groove (4-1), the inner peripheral surface of described fixed cover (2) is provided with the circumferential protrusion (2-1) coordinated with described circumferential registration groove (4-1), the internal periphery of described fixed cover (2) has chamfering.
2. heating cable series connection structure according to claim 1, is characterized in that: described insulating case (4) is provided with vertically two circumferential registration grooves (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420475350.9U CN204206490U (en) | 2014-08-21 | 2014-08-21 | A kind of heating cable series connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420475350.9U CN204206490U (en) | 2014-08-21 | 2014-08-21 | A kind of heating cable series connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204206490U true CN204206490U (en) | 2015-03-11 |
Family
ID=52664397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420475350.9U Expired - Fee Related CN204206490U (en) | 2014-08-21 | 2014-08-21 | A kind of heating cable series connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204206490U (en) |
-
2014
- 2014-08-21 CN CN201420475350.9U patent/CN204206490U/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 |
Granted publication date: 20150311 Termination date: 20150821 |
|
| EXPY | Termination of patent right or utility model |