CN2634775Y

CN2634775Y - Consealed joint structure for hot line and cold line of heat generating cable

Info

Publication number: CN2634775Y
Application number: CN 03206710
Authority: CN
Inventors: 杨燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-30
Filing date: 2003-07-30
Publication date: 2004-08-18
Anticipated expiration: 2013-07-30

Abstract

The utility model, which discloses a concealed type joint structure of a heating cable hot wire and cold wire, comprises a hot wire and a cold wire, a hook of the hot-cold wire which is formed by hooking and jointing the end of the hot wire and the cold wire, and a pressed connector that is fixed tightly in the outside of the hot-cold wire hook and a thermoplastic tube covering the pressed connector. The outside of the thermoplastic tube is covered with an outside protective layer of the heat cable, a tin-copper plating shielding net extending along the cold wire and an outer PVC protective cover, and the outside of the PVC protective cover is sleeved with a ring-shaped red line mark and a yellow cold wire mark to distinguish hot-cold wire position that is united to a whole. The hot-cold wire concealed type joint structure of the utility model is applied in double guiding and double heating cables and double guiding and single heating cables and the utility model has the function of tight jointing and no revelation, and the hidden trouble of accidents can be eliminated completely.

Description

The hidden joint design of heating cable hot line and cold line

Technical field

The utility model relates to a kind of hot cold line joint design of heating cable, the especially a kind of double conductive double heating heating cable of private residence heating and pipe insulation, hot cold line hidden joint design of double conductive single heating heating cable of being used for.

Background technology

Usually, heating cable will be by common cable or wire energized, abbreviate the heating-wire of heating cable as hot line, but the cable or wire of energized abbreviates cold line as, during heating cable work, one end of cold line and an end of hot line are fixed together, and its joint is called for short hot cold line joint.Traditional hot cold line joint adopts presser type to connect, or adopts welding, and wrap with insulating then or be exposed shape, this joint design, often because of artificial technical factor, the contact imprecision exists accident potential.

The utility model content

The purpose of this utility model provides a kind of heating cable hot line of double conductive double heating heating cable, double conductive single heating heating cable and hidden joint design of cold line of being used for, and it is tight fixedly connected that the contact of hot cold line joint is constituted, and be latent type shape.

For achieving the above object; the solution that the utility model adopted is: the hidden joint design of a kind of heating cable hot line and cold line; comprise hot line 6 and cold line 10; it is characterized in that it also comprises: hot cold line eave tile 1; be fastened on the crimp 2 of hot cold line eave tile 1 periphery; be coated on the thermoplastic tube 3 on the crimp 2, the periphery of this thermoplastic tube 3 is coated with tin-coated copper gauze screen 7 and the outermost PVC protective sleeve 8 of the external protection of heating cable to the extension of cold line 10 directions.

Be with red hot line tag 9 of ring-type and yellow cold line mark 9 ' on the periphery of described outermost PVC protective sleeve 8.

After adopting such scheme; the utility model compared with prior art has following beneficial effect: because the hidden joint design of the utility model heating cable hot line and cold line; in being applied to double conductive double heating heating cable and double conductive single heating heating cable; being connected in the heating cable production process of hot line and cold line finished; crimp is crimped on hot cold line eave tile together closely; and thermoplastic tube is gone up in coating; the external protection tin-coated copper gauze screen of its heating cable and outermost PVC protective sleeve extend to the cold line direction; make hot cold line become an integral body fully; and hot cold line joint is hidden and constitute the hidden joint design or the latent type joint design of heating cable hot line and cold line, thereby thoroughly eliminated accident potential.In addition, owing on cold line joint outermost protective layer PVC sheath, be provided with heat, cold line mark, just can recognize the hot cold line portion of joint both sides significantly.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Description of drawings

Fig. 1 is the utility model heating cable hot line and the application schematic diagram of cold line hidden joint design in the double conductive double heating heating cable;

Fig. 2 is the utility model heating cable hot line and the application schematic diagram of cold line hidden joint design in the double conductive single heating heating cable.

Embodiment

The heating cable hot line as depicted in figs. 1 and 2 and the hidden joint design of cold line; be applied to double conductive double heating heating cable and double conductive single heating heating cable; it among Fig. 1 the hidden joint design of double conductive double heating heating cable; comprise hot line 6 and cold line 10; its heating-wire; be that hot line 6 has 2; have protective layer Teflon 4 and crosslinked polyethylene 5 outside the hot line 6; outwards also matcoveredn tin-coated copper gauze screen 7 and outermost PVC protective sleeve 8 successively; these 2 heating-wires; be that an end of hot line 6 and an end of 2 cold lines 10 are fixedly connected separately; its 2 hot cold line joint design features are duplicate; promptly comprise hot cold eave tile 1, be fastened on the crimp 2 of hot cold line eave tile 1 periphery.Be coated on the thermoplastic tube 3 on the crimp 2; the periphery of thermoplastic tube 3 is coated with tin-coated copper gauze screen 7 and the outermost PVC protective sleeve 8 of the external protection of heating cable to the extension of cold line direction; tin-coated copper gauze screen 7 and PVC protective sleeve 8 constitute the total protective layer of hot cold line; hot cold line is become one fully; and the joint of hot cold line is hidden, and constitute latent type joint.

It among Fig. 2 the hidden joint design of double conductive single heating heating cable; comprise hot line 6 and cold line 10; its heating-wire is that an end of hot line 6 and zero line 18 and an end of 2 cold lines 10 are fixedly connected separately; zero line 18 is leads that and heating-wire 6 have the loop of one's own; because of the joint design of zero line 18 and cold line 10 is same as heating-wire is hot line 6 and the joint design of cold line 10; so zero line 18 is also regarded as hot line; and be connected with cold line 10; among Fig. 2; be wrapped in the hot line 6 on the Kai Fula strengthening core 17; its periphery has special volt dragon 4 of protective layer and polyamide 15; outwards also matcoveredn tin-coated copper gauze screen 7 and outermost PVC sheath 8 successively, shock resistance liner 13 does not participate in and being connected of cold line among Fig. 2.The hot line 6 of this double conductive single heating heating cable and the joint design of cold line 10 and the hot line of double conductive double heating heating cable and the joint design of cold line are duplicate, repeat no more.In order to distinguish the hot cold line position that connects as one, no matter be the double conductive double heating heating cable, or double conductive single heating heating cable, it is with after cold line is connected, on the periphery of its outer field PVC sheath 8 of hot line portion, promptly be with the red hot line tag 9 of a ring-type as PVC sheath 8 among Fig. 1 and Fig. 2, be with the yellow cold line mark 9 ' of a ring-type in an identical manner in its cold line portion, the right side side of red hot line tag 9 as depicted in figs. 1 and 2 is a hot line, the left side side of yellow cold line mark 9 ' is a cold line, then is hot cold line connector portions therebetween.

The hidden joint design of the utility model heating cable hot line and cold line; constituting the fixedly connected course of work is: at first the end with hot cold line is bent into the eave tile shape; and hook joint forms hot cold line eave tile 1 together mutually; utilize specific purpose tool 2 pairs of hot cold line eave tiles 1 of crimp to be carried out crimping again 1 one of hot cold line eave tile; its contacted hot cold line eave tile 1 closely is crimped on together; form tight joint; coat one deck thermoplastic tube 3 then; after constituting firm hot cold line joint; the external protection tin-coated copper gauze screen 7 and the outermost PVC sheath 8 of hot line extend to the cold line direction; fully that hot cold line joint is hidden and constitute the hidden joint design of heating cable hot line and cold line; this hidden joint design is also referred to as latent type joint design; it is to form in the production process of double conductive double heating heating cable and double conductive single heating heating cable; because automatic and mechanical production; guarantee that its contact is tight, thoroughly eliminated accident potential.

Claims

1. the hidden joint design of heating cable hot line and cold line; comprise hot line (6) and cold line (10); it is characterized in that it also comprises: hot cold line eave tile (1); be fastened on the crimp (2) of hot cold line eave tile (1) periphery; be coated on the thermoplastic tube (3) on the crimp (2), the periphery of this thermoplastic tube (3) is coated with tin-coated copper gauze screen (7) and the outermost PVC protective sleeve (8) of the external protection of heating cable to the extension of cold line (10) direction.

2. the hidden joint design of a kind of heating cable hot line according to claim 1 and cold line is characterized in that: be with red hot line tag (9) of ring-type and yellow cold line mark (9 ') on the periphery of described outermost PVC protective sleeve (8).