CN108321755A - Cable intermediate joint water proof fire retardant armored cassette - Google Patents
Cable intermediate joint water proof fire retardant armored cassette Download PDFInfo
- Publication number
- CN108321755A CN108321755A CN201810130362.0A CN201810130362A CN108321755A CN 108321755 A CN108321755 A CN 108321755A CN 201810130362 A CN201810130362 A CN 201810130362A CN 108321755 A CN108321755 A CN 108321755A
- Authority
- CN
- China
- Prior art keywords
- necking part
- intermediate joint
- cable
- water proof
- flame retardant
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
Abstract
The invention discloses a kind of cable intermediate joint water proof fire retardant armored cassettes, the semi-cylindrical shell docked including two, flame retardant rubber sealing ring and limiting device, the both ends of the semi-cylindrical shell are both provided with necking part, the necking part has the through-hole that current supply cable passes through, the necking part is internally provided with the seal groove being adapted with the flame retardant rubber sealing ring, the end face of the necking part is provided with the fixed component being adapted with the limiting device, the limiting device is fixed on the outside of the semi-cylindrical shell, the flame retardant rubber sealing ring is internally provided with several dovetail grooves.The armored cassette sealing performance is excellent, and service life is long, and fire-retardant uprising performance is good.
Description
Technical field
The invention belongs to explosion-protection equipment technical fields, and in particular to a kind of cable intermediate joint water proof fire retardant armored cassette.
Background technology
With the high speed development of national economy, power grid cables popularity is higher and higher, and more and more cables are concentrated
To cable duct, cable shaft or the subsurface that is laid in side by side need one due to unit cable limited length on a usual circuit
Or more connector carry out extension length.To meet power reguirements, it is well known that cable intermediate joint is that cable does weak ring
Section.According to relevant statistics, in the past 20 years, cable fire more than 1140 times occurs for China, and 2005-2010 is unexpectedly up to 562 times, power plant
Occur 2 times, cause directly or indirectly economic loss up to more than 50 hundred million yuan.According to power fault analysis, cable fire is caused to occur
The reason is that cable mid head production quality is bad, crimp head is not tight, contact cable resistance is excessive, the made end mistake of long-term long journey
Heat wears insulation, finally results in the generation of cable duct or direct-buried cable fire.Along with urban waterlogging by various acid-alkali salt corrosivity
Liquid, which pours into cable duct well and generates burn into cable intermediate joint to cable intermediate joint, constructs under wet weather and has been mixed into aqueous vapor
And other reasons, causing cable intermediate joint, it is easy to appear failures even to explode.And now, common cable is more in cable duct well,
Some ditch wells are also possible to be flooded with the imflammable gas such as biogas, and cable connector once explodes, even a spark, may all ignite
Entire ditch well, causes huge economic loss, or even raise cable duct manhole cover plate and damaged to pedestrian.Therefore, in the cable
Between to install protection box on connector additional extremely necessary.
The protection of cable connector, it is necessary to be comprehensive, i.e., must have waterproof, anti-acid-alkali salt burn into explosion-proof, fire-retardant
The features such as.Cable connector since individual big, length is long, explosive force is strong, for it makes protection box, and must to possess mouldability splendid
Material and the high technique of precision, complete at this 2 points still has sizable research space at present, cable connector traditional at present
Means of defence has two classes：The first kind be installed additional outside connector one with unload can hole fiberglass outer cover, then can hole handle by unloading
Outer cover fills AB glue, and cable connector seal note completely after AB glue solidification and is wrapped up, to play waterproof and anti-acid-alkali salt corrodes
Effect；Therefore mode is at all without antiknock ability, once exploding, explode generated energy, flame can only be led by unloading energy hole
To being discharged in the comparatively safe space of cable duct well, due to cable duct well inclement condition and complex, this protection method
There are huge unreliabilities.Second class is the buckle sandwich type element made of the SMC material of high intensity, is pressed and is connected by handware
It connects, two ends are stifled using inorganic fire mudding, and are aided with the winding of waterproof self-tightening adhesive tape to solve waterproof problem, within a certain period of time
The function of explosive-proof protector can be reached, but due to plugging material own physical performance reason, there are congenital for weatherability, durability
Property defect, construction personnel is required high, is not easy to organizational standard and is turned into industry.However, existing cable protection of welded joints method is adopted
Its sealing performance effect of protective cover is less desirable, and durability is also poor.
Invention content
The present invention proposes a kind of cable intermediate joint water proof fire retardant armored cassette, and the armored cassette sealing performance is excellent, uses the longevity
Life length, fire-retardant uprising performance are good.
The technical proposal of the invention is realized in this way：
A kind of cable intermediate joint water proof fire retardant armored cassette, including the semi-cylindrical shell of two docking, flame retardant rubber are close
The both ends of seal and limiting device, the semi-cylindrical shell are both provided with necking part, and the necking part is worn with current supply cable
The through-hole crossed, the necking part are internally provided with the seal groove being adapted with the flame retardant rubber sealing ring, the necking part
End face be provided with the fixed component being adapted with the limiting device, the limiting device is fixed on the semi-cylindrical shell
Outside, the flame retardant rubber sealing ring is internally provided with several dovetail grooves.
Preferably, the flame retardant rubber sealing ring includes inner seal ring and exterior seal ring, is provided in the exterior seal ring
Internal thread groove, the outside of the inner seal ring be equipped with the matched external thread groove of the internal thread groove, in the inner seal ring
Portion is equipped with several dovetail grooves.
Preferably, the inside of the necking part is provided with screens protrusion close to the position of the seal groove, and the screens is convex
It rises for blocking the flame retardant rubber sealing ring.
Preferably, the limiting device is flange, and the fixed component is to be arranged on the end face of the necking part
Bolt hole, the flange are bolted to connection with the necking part.
Preferably, the bolt is stainless steel bolt, and the specification of the stainless steel bolt is M8-60.
Preferably, the semi-cylindrical shell is prepared by the forging and stamping one-pass molding of SMC composite materials.
Beneficial effects of the present invention：
Its necking part of the cable intermediate joint water proof fire retardant armored cassette of the present invention has the through-hole that current supply cable passes through, necking part
Be internally provided with flame retardant rubber sealing ring be adapted seal groove, flame retardant rubber sealing ring is internally provided with several trapezoidal
Slot, the dovetail groove of several arrangements is adapted with cable enhances flame retardant rubber sealing ring to the sealing effect of cable, extends
The service life of cable.According to the cable size at scene, select the flame retardant rubber of monomer flame retardant rubber sealing ring or combination close
Seal (including inner seal ring and exterior seal ring), flame retardant rubber sealing ring have several dovetail grooves, can there is very strong retractility
With anti-extrusion, flange is then bolted on semi-cylindrical shell both ends, thus can constantly squeeze fire-retardant rubber
Glue sealing ring reaches sealing effect by it.
By the cable intermediate joint water proof fire retardant explosion proof applications of the present invention in 10KV cables, has the following advantages：(1) corrosion resistant
Lose pollution-free, product can antiacid, alkali, salt, seawater, raw sewerage, corrosive ground or underground water and numerous chemistry streams
The corrosion of body.With nontoxic, rustless, tasteless, to water quality non-secondary pollution and it is not necessarily to corrosion-resistant good characteristic.(2) antifouling anti-
Moth, has used unsaturated polyester resin, so its clean surface is smooth, it will not be by the first shellfish in ocean or sewage, mushroom etc. is micro-
Biofouling moth is attached, so that increasing roughness, reduces the cross-section of river, increases maintenance cost.No these pollutions, are used for a long time clean
As before.(3) heat-resisting freeze proof, under -30 DEG C of states, still there is good toughness and high intensity, it can be at -50 DEG C to 80 DEG C
It is used for a long time in range, can also be worked in 110 DEG C or more of temperature using the resin of special formulation.(4) electric heating good insulating, should
Material has the characteristics that electrical insulating property, and insulation resistance most adapts to be used in transmission of electricity, telecommunication line is intensive in 1012-1015 Ω .cm
Area, and excellent thermal insulation performance.(5) the capability of antidetonance is strong, uses high-strength composite material SMC forging and stamping one-pass molding, without weak spot,
There are extremely strong explosion-proof capabilities.Accident occurs among cable and generates explosion time.High pressure draught, the flame and broken that explosion can be generated
Piece is limited in armored cassette, avoids fault spread, prevents the generation of the secondary disaster.(6) fire retardancy is strong, product fire retardancy
By force, reach A1 grades of high standard；It is also configured with high-performance thermal insulation layer in tray interior, when fire occurs for cable intermediate joint, this
Product not only has superpower fire retardancy, while also assuring that shell will not rise substantially, to protect adjacent cable will not
It is ruined.(7) there is the strong product of resistance to pressure very strong pressure-resistant performance, shell can bear from internal or external superpower impact.
It prevents from rolling failure because of weight.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the explosive view of cable intermediate joint water proof fire retardant armored cassette of the present invention；
Fig. 2 is the structural schematic diagram of semi-cylindrical shell.
Attached drawing indicates：1- semi-cylindrical shells；2- necking parts；3- through-holes；4- seal grooves；5- screens protrusions；6- interior sealings
Circle；7- exterior seal rings；8- flanges；9- fixed components.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig.1 with Fig. 2, a kind of cable intermediate joint water proof fire retardant armored cassette, including two docking semi-cylindricals outside
Shell 1, flame retardant rubber sealing ring and limiting device, semi-cylindrical shell 1 are prepared by the forging and stamping one-pass molding of SMC composite materials
It arrives.The both ends of semi-cylindrical shell 1 are both provided with necking part 2, and necking part 2 has the through-hole 3 that current supply cable passes through, necking part 2
It is internally provided with the seal groove 4 being adapted with flame retardant rubber sealing ring, the end face of necking part 2 is provided with to be adapted with limiting device
Fixed component 9, limiting device is fixed on the outside of semi-cylindrical shell 1, and flame retardant rubber sealing ring is internally provided with several ladders
Shape slot.Flame retardant rubber sealing ring includes inner seal ring 6 and exterior seal ring 7, and internal thread groove, interior sealing are provided in exterior seal ring 7
The outside of circle 6 is equipped with is internally provided with several dovetail grooves with the matched external thread groove of internal thread groove, inner seal ring 6.Necking part 2
The internal position close to seal groove 4 is provided with screens protrusion 5, and screens protrusion 5 is for blocking flame retardant rubber sealing ring.Limiting device
For flange 8, fixed component 9 is the bolt hole being arranged on the end face of necking part 2, and flange 8 is bolted with necking part 2
Connection.Bolt is stainless steel bolt, and the specification of stainless steel bolt is M8-60.
Its explosion-proof necking part 2 of cable intermediate joint water proof fire retardant of the present invention has the through-hole 3 that current supply cable passes through, necking part
2 be internally provided with flame retardant rubber sealing ring be adapted seal groove 4, flame retardant rubber sealing ring is internally provided with several trapezoidal
Slot, the dovetail groove of several arrangements is adapted with cable enhances flame retardant rubber sealing ring to the sealing effect of cable, extends
The service life of cable.According to the cable size at scene, select the flame retardant rubber of monomer flame retardant rubber sealing ring or combination close
Seal (including inner seal ring 6 and exterior seal ring 7), flame retardant rubber sealing ring has several dovetail grooves, can there is very strong stretch
Property and anti-extrusion, are then bolted on 1 both ends of semi-cylindrical shell by flange 8, thus can constantly squeeze resistance
Combustion rubber seal allows it to reach sealing effect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (5)
1. a kind of cable intermediate joint water proof fire retardant armored cassette, which is characterized in that including two semi-cylindrical shells docked, resistance
Combustion rubber seal and limiting device, the both ends of the semi-cylindrical shell are both provided with necking part, and the necking part has
The through-hole that current supply cable passes through, the necking part are internally provided with the seal groove being adapted with the flame retardant rubber sealing ring, institute
The end face for stating necking part is provided with the fixed component being adapted with the limiting device, and the limiting device is fixed on the semicircle
The outside of cylindrical outer cover, the flame retardant rubber sealing ring are internally provided with several dovetail grooves.
2. cable intermediate joint water proof fire retardant armored cassette according to claim 1, which is characterized in that the flame retardant rubber is close
Seal includes inner seal ring and exterior seal ring, and internal thread groove is provided in the exterior seal ring, and the outside of the inner seal ring is set
Have and is internally provided with several dovetail grooves with the matched external thread groove of the internal thread groove, the inner seal ring.
3. cable intermediate joint water proof fire retardant armored cassette according to claim 1, which is characterized in that the limiting device is
Flange, the fixed component are the bolt hole being arranged on the end face of the necking part, and the flange is logical with the necking part
Bolt is crossed to be fixedly connected.
4. cable intermediate joint water proof fire retardant armored cassette according to claim 3, which is characterized in that the bolt is stainless
Steel bolt.
5. cable intermediate joint water proof fire retardant armored cassette according to claim 1, which is characterized in that outside the semi-cylindrical
Shell is prepared by the forging and stamping one-pass molding of SMC composite materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810130362.0A CN108321755A (en) | 2018-02-08 | 2018-02-08 | Cable intermediate joint water proof fire retardant armored cassette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810130362.0A CN108321755A (en) | 2018-02-08 | 2018-02-08 | Cable intermediate joint water proof fire retardant armored cassette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108321755A true CN108321755A (en) | 2018-07-24 |
Family
ID=62902276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810130362.0A Pending CN108321755A (en) | 2018-02-08 | 2018-02-08 | Cable intermediate joint water proof fire retardant armored cassette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108321755A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2782814Y (en) * | 2005-03-03 | 2006-05-24 | 柳州欧维姆机械股份有限公司 | In vitro cable seal device |
| CN101938107A (en) * | 2010-08-17 | 2011-01-05 | 刘金炜 | Full-sealed water, fire and explosion prevention cable joint safety box |
| CN202384736U (en) * | 2011-12-09 | 2012-08-15 | 郑志远 | Flame-retardant and anti-explosion box for intermediate joint of cable |
| CN103633610A (en) * | 2013-11-04 | 2014-03-12 | 珠海市普立永信电力设备有限公司 | Anti-explosion protection box for center coupling of cable |
| CN204179624U (en) * | 2014-10-31 | 2015-02-25 | 陈晓庭 | Cable waterproof blocks up mechanism |
| CN204225787U (en) * | 2014-10-28 | 2015-03-25 | 中国石油集团西部钻探工程有限公司 | Cross linear sealing joint |
| CN204333885U (en) * | 2015-01-05 | 2015-05-13 | 杨洪柱 | A kind of cable intermediate joint anti-explosion cover |
| CN204333881U (en) * | 2014-10-28 | 2015-05-13 | 成都峰达科技有限公司 | The cable unit that can compress |
| CN206099281U (en) * | 2016-10-20 | 2017-04-12 | 东莞市奥科兴复合材料制品有限公司 | Convenient cable intermediate head SMC explosion -proof box fills |
| CN206293867U (en) * | 2016-12-30 | 2017-06-30 | 重庆大业电气有限责任公司 | Hermetically sealed cable joint explosion-proof box |
| CN206368689U (en) * | 2016-08-30 | 2017-08-01 | 天津德华石油装备制造有限公司 | A kind of offshore drill uses riser pipe Special threading connector |
| CN206830987U (en) * | 2017-06-12 | 2018-01-02 | 山东高原新材料科技有限公司 | A kind of novel pipeline thread seal joint |
-
2018
- 2018-02-08 CN CN201810130362.0A patent/CN108321755A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2782814Y (en) * | 2005-03-03 | 2006-05-24 | 柳州欧维姆机械股份有限公司 | In vitro cable seal device |
| CN101938107A (en) * | 2010-08-17 | 2011-01-05 | 刘金炜 | Full-sealed water, fire and explosion prevention cable joint safety box |
| CN202384736U (en) * | 2011-12-09 | 2012-08-15 | 郑志远 | Flame-retardant and anti-explosion box for intermediate joint of cable |
| CN103633610A (en) * | 2013-11-04 | 2014-03-12 | 珠海市普立永信电力设备有限公司 | Anti-explosion protection box for center coupling of cable |
| CN204225787U (en) * | 2014-10-28 | 2015-03-25 | 中国石油集团西部钻探工程有限公司 | Cross linear sealing joint |
| CN204333881U (en) * | 2014-10-28 | 2015-05-13 | 成都峰达科技有限公司 | The cable unit that can compress |
| CN204179624U (en) * | 2014-10-31 | 2015-02-25 | 陈晓庭 | Cable waterproof blocks up mechanism |
| CN204333885U (en) * | 2015-01-05 | 2015-05-13 | 杨洪柱 | A kind of cable intermediate joint anti-explosion cover |
| CN206368689U (en) * | 2016-08-30 | 2017-08-01 | 天津德华石油装备制造有限公司 | A kind of offshore drill uses riser pipe Special threading connector |
| CN206099281U (en) * | 2016-10-20 | 2017-04-12 | 东莞市奥科兴复合材料制品有限公司 | Convenient cable intermediate head SMC explosion -proof box fills |
| CN206293867U (en) * | 2016-12-30 | 2017-06-30 | 重庆大业电气有限责任公司 | Hermetically sealed cable joint explosion-proof box |
| CN206830987U (en) * | 2017-06-12 | 2018-01-02 | 山东高原新材料科技有限公司 | A kind of novel pipeline thread seal joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180724 |