CN2500010Y - Anti-fire joint for cable - Google Patents
Anti-fire joint for cable Download PDFInfo
- Publication number
- CN2500010Y CN2500010Y CN 01217916 CN01217916U CN2500010Y CN 2500010 Y CN2500010 Y CN 2500010Y CN 01217916 CN01217916 CN 01217916 CN 01217916 U CN01217916 U CN 01217916U CN 2500010 Y CN2500010 Y CN 2500010Y
- Authority
- CN
- China
- Prior art keywords
- earthenware
- double
- cable
- bolt
- fixed
- 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 cable fireproof joint, composed of two copper jackets, double-heat nuts, ceramic tubes, and two bolts etc., which is characterized in that the two copper jackets are processed with positive thread and negative thread, when used, wire cores are respectively pressed tightly in the copper jackets and connected together via the double-head nuts, and the ceramic tube is covered outside the double-head nut and is pressed between the other two ceramic tubes. The connecting mode of structure is characterized by high temperature resistance, high connection strength, small contact resistance, high insulation performance, and long service lift etc.
Description
The utility model relates to a kind of line connecting joint, refers more particularly to a kind of cable fire-proof joint.
Harbour, oil depot, power plant and more than ten layers the electric power system of building etc. must adopt fireproof cable.At present, the joint of the fireproof cable that is adopted on the market all adopts core copper sheathing crimping, outer then suit heat shrink films insulation or the insulation of employing magnesia tube, adopt these two kinds of methods all to have following defective: shortcomings such as strength of joint is low, contact resistance is big, adopt the former also to have shortcomings such as refractory temperature is low, adopt the latter to have shortcomings such as magnesia tube is easily broken, useful life is low.
The utility model purpose is in order to overcome above defective, a kind of cable fire-proof joint to be provided, and makes the cable of connection have characteristics such as bonding strength height, contact resistance are little, heat resisting temperature height.
Order of the present utility model is achieved in that a kind of cable fire-proof joint is made up of copperhead, double end nut, earthenware, metal shell, bolt, clamp nut etc., it is characterized in that: two copper sheathings are processed to a positive silk and an anti-silk respectively, be fixed in the double end nut, double end nut skin is with earthenware.The double end nut that is with earthenware is crushed in the middle of other two earthenwares, is with metal-coating at its skin then, and the bolt by two compresses the double end nut of centre, and the other end of bolt is fixed with clamp nut.
Adopt the cable fire-proof joint of this structure to have the bonding strength height, advantages such as contact resistance is little, heat resisting temperature is high, be difficult for fragmentation, long service life.
Below in conjunction with accompanying drawing the utility model is done further narration.
Fig. 1 is the structural representation of a kind of cable fire-proof joint described in the utility model.
1, compress gasket 2, clamp nut 3, bolt 4, earthenware A 5, earthenware B 6, double end nut 7, copper sheathing 8, metal shell 9, core 10, cable
As can be seen from Figure 1, a kind of cable fire-proof joint described in the utility model is by double end nut 6, copper sheathing 7, earthenware A4, B5, bolt 3, metal-coating 8 grades are partly formed, the two ends of metal-coating 8 are fixed with bolt 3 respectively, the other end of bolt 3 is fixed with clamp nut 2, it is characterized in that: two copper sheathings 7 are processed to positive silk and anti-silk respectively, two copper sheathings 7 are tightened in the double end nut 6, double end nut 6 skins are with earthenware B5, the double end nut 6 that is with earthenware B5 is sandwiched in the centre of two earthenware A4, and be pressed in its outer field metal-coating 8 by the bolt 3 of both-end, in use, at first the cable 10 with an end is fixed in the bolt 3 by compress gasket 1 and clamp nut 2, put earthenware A4, and core 9 is pressed in the copper sheathing 7, core 9 with the other end is pressed in another copper sheathing 7 then, because two copper sheathings are processed to positive silk and anti-silk, Gu between just two copper sheathings 7 can being fixed therein by rotation double end nut 6, put earthenware B5 and earthenware A4 then, metal-coating 8 is enclosed within the outer of earthenware A4 again and is fixed in the bolt 3 at two ends, the cable 10 with the other end is fixed in the bolt 3 by compress gasket 1 and clamp nut 2 at last.Adopt the connected mode of this structure, be threaded owing to connect to adopt, so characteristics such as contact resistance is little, bonding strength height.It is broken that insulating material has adopted earthenware to be difficult for, and has advantages such as height in useful life.
Claims (2)
1, a kind of cable fire-proof joint is by double end nut (6), copper sheathing (7), earthenware A (4), earthenware B (5), bolt (3), part such as metal-coating (8) is formed, the two ends of metal-coating (8) are fixed with two bolts (3) respectively, the other end of bolt (3) is fixed with clamp nut (2), it is characterized in that: be fixed with two copper sheathings (7) by screw thread in the double end nut (6), its skin is with earthenware B (5), the double end nut (6) that is with earthenware (5) is sandwiched in the centre of two earthenwares (4), and is fixed in the metal-coating (8) by the bolt (3) at two ends.
2, a kind of cable fire-proof joint according to claim 1 is characterized in that: described two copper sheathings (7) are processed to a positive silk and an anti-silk respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01217916 CN2500010Y (en) | 2001-03-16 | 2001-03-16 | Anti-fire joint for cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01217916 CN2500010Y (en) | 2001-03-16 | 2001-03-16 | Anti-fire joint for cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2500010Y true CN2500010Y (en) | 2002-07-10 |
Family
ID=33636051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01217916 Expired - Fee Related CN2500010Y (en) | 2001-03-16 | 2001-03-16 | Anti-fire joint for cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2500010Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468639A (en) * | 2010-11-10 | 2012-05-23 | 江苏宝安电缆有限公司 | Fireproof cable terminal envelope |
| CN102468640A (en) * | 2010-11-10 | 2012-05-23 | 江苏宝安电缆有限公司 | Intermediate connector special for fireproof cables |
| CN104332720A (en) * | 2014-10-30 | 2015-02-04 | 武汉钢铁(集团)公司 | Bonding head |
| CN104874563A (en) * | 2015-06-04 | 2015-09-02 | 王丽 | Washing unit of conveying washing machine for chain fixtures |
| CN107613592A (en) * | 2017-10-31 | 2018-01-19 | 山东华宁电伴热科技有限公司 | One kind series connection high-power connectivity kit of heating tape |
-
2001
- 2001-03-16 CN CN 01217916 patent/CN2500010Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468639A (en) * | 2010-11-10 | 2012-05-23 | 江苏宝安电缆有限公司 | Fireproof cable terminal envelope |
| CN102468640A (en) * | 2010-11-10 | 2012-05-23 | 江苏宝安电缆有限公司 | Intermediate connector special for fireproof cables |
| CN104332720A (en) * | 2014-10-30 | 2015-02-04 | 武汉钢铁(集团)公司 | Bonding head |
| CN104874563A (en) * | 2015-06-04 | 2015-09-02 | 王丽 | Washing unit of conveying washing machine for chain fixtures |
| CN107613592A (en) * | 2017-10-31 | 2018-01-19 | 山东华宁电伴热科技有限公司 | One kind series connection high-power connectivity kit of heating tape |
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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 |