CN107800108A - A kind of flexible cable joint explosion-proof box - Google Patents
A kind of flexible cable joint explosion-proof box Download PDFInfo
- Publication number
- CN107800108A CN107800108A CN201711114581.1A CN201711114581A CN107800108A CN 107800108 A CN107800108 A CN 107800108A CN 201711114581 A CN201711114581 A CN 201711114581A CN 107800108 A CN107800108 A CN 107800108A
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- CN
- China
- Prior art keywords
- cable
- explosion
- protective cover
- flexible
- hole
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- 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.)
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Classifications
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- 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
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- Cable Accessories (AREA)
Abstract
The invention discloses a kind of flexible cable joint explosion-proof box, including the protective cover with explosion-proof chamber, the both ends of the protective cover are provided with the cable port that current supply cable passes through, cable intermediate joint is located in explosion-proof chamber, protective rubber is filled with the explosion-proof chamber, the protective cover rushes down energy hole provided with what several were connected with explosion-proof chamber, and described let out can be provided with seal at hole, flexible shroud is connected with by pyrocondensation mode between the cable port and cable protective kit.The present invention can be installed according to cable bend degree by installing flexible flexible shroud additional at protective cover both ends, solve the problems, such as cable explosion-proof box in small space installation difficulty, the flexural deformation of appropriate cable transition joint.
Description
Technical field
The present invention relates to electric power facility protector technical field, and in particular to cable joint explosion-proof box.
Background technology
With urban development planning requirement and the continuous improvement of industrial automatization, it is raw that electric energy is increasingly becoming society now
Major impetus source living is produced, the spatter property and high efficiency of electric power energy bring very big convenience.Due to supply network
The factors such as huge, electric power system is complicated, power supply link is more, power supply distance length, the use of power cable and cable tunnel is also therewith
More and more, cable connector turns into the important splicing point of whole supply network, and its operation stability will directly affect electric power system
Running quality.
Cable intermediate joint after installation, is run by surrounding environment influence, inevitably because moisture is invaded at the scene
Enter, the external force factor such as mechanical stress causes insulation to wreck, cause cable intermediate connector breakdown and explosion accident.Cable connector
Cable tunnel caused by blast occurs, fire is the power system accident of most serious in work well.Due to subterranean tunnel, Gong Jing spaces
The arrangement of narrow, cable is intensive, so as to involve other cables, causes large area blackout, being caused to whole power system can not
The loss retrieved, has a strong impact on power supply reliability.
For these problems, the conventional safeguard measure of power supply unit or unit in charge of construction is used with fire prevention, waterproof, explosion-proof
The cable intermediate joint box of effect carries out disposition to cable intermediate joint, and cable intermediate connector protection is fastened on into shell
, can be to other electricity of periphery under the protection of cable explosion-proof box once breakdown and explosion accident occurs for cable intermediate joint inside body
Power facility is effectively protected, and prevents the generation of secondary injury.Currently used cable explosion-proof box is metal manufacture or glass
Steel making, product appearance are in strip column, do not have flexible curved dilatability.Because cable is disk contracting or be laid in cable duct or electricity
In cable well, general cable intermediate connector construction and laying can all cause cable torsional deformation, exactly because cable torsional deformation
Irregular curved state is presented, after causing cable intermediate joint construction, cable explosion-proof box is unable to appropriate cable transition joint
Torsional deformation, it is impossible to effectively cable intermediate joint is fastened in housing, cause cable explosion-proof box can not install or install it is tired
It is difficult.Therefore, currently used cable explosion-proof box just can only often use in the ideal situation, and site environment slightly changes, will
Cause the installation of cable explosion-proof box to be the devil or even can not install, the installation for abandoning cable explosion-proof box is ultimately resulted in, so as to cause
The cable intermediate connector of installation is lost due protection, the moment run under unprotected state and threaten periphery its
His electric power facility and the safety of personnel.
The content of the invention
The technical problems to be solved by the invention are just to provide a kind of flexible cable joint explosion-proof box, adapt to cable
The torsional deformation of transition joint.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of flexible cable joint explosion-proof box,
Including the protective cover with explosion-proof chamber, the both ends of the protective cover are provided with the cable port that current supply cable passes through, cable intermediate joint position
In in explosion-proof chamber, being filled with protective rubber in the explosion-proof chamber, the protective cover rushes down energy provided with what several were connected with explosion-proof chamber
Hole, described let out can be provided with seal at hole, be connected between the cable port and cable protective kit by pyrocondensation mode flexible
Sheath, first, flexible shroud is inserted in not connected cable both ends, the complete cable intermediate joint of fabrication and installation is fastened on protective cover
It is internal；Then, flexible shroud is placed on the correct position between protective cover cable port and cable protective kit, with air-heater or blowtorch
After heating, flexible shroud retraction makes cable be combined closely with protective cover both ends cable port；Finally, rushing down on protective cover is passed through
Protective rubber is filled in energy hole to explosion-proof chamber, and will be rushed down with seal after the completion of filling can hole sealing.
Preferably, the protective cover includes being connected to integral upper shell and lower house, the upper shell by connector
Include semicircle main paragraph, the half-conical changeover portion to connect with semicircle main paragraph at middle part, and and half-conical with lower house
The semicircular joint section that changeover portion connects.
Preferably, the connector includes being correspondingly arranged at upper shell, several engaging lugs of lower house side, the company
Lug is provided with the fixing hole penetrated for connecting bolt, and connecting bolt is consolidated through upper shell, the mutually corresponding engaging lug of lower house
Determine by nut check behind hole, so as to which upper shell, lower house are tightly secured together.
Preferably, the junction of upper shell and the lower house engaging lug is provided with silicone rubber O-ring.
Preferably, the seal is included located at the sealing ring rushed down in energy hole and located at the hole let out at energy outer end of hole mouth
Plug.
The present invention uses above-mentioned technical proposal, has the advantages that：
1st, by installing flexible flexible shroud additional at protective cover both ends, can be installed according to cable bend degree, effectively
Cable explosion-proof box is solved the problems, such as in small space installation difficulty, the flexural deformation of appropriate cable transition joint, the scope of application
Extensively, it is high to bend fitness.
2nd, using each component combination connected mode, convenience simple in construction, quick for installation, component are easy to transport and preserved, structure
Part is versatile, and suitable high-volume makes；
3rd, the cable of effective guard space narrow position, avoid because cable intermediate joint accident causes power equipment around
With the secondary injury of personnel.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the axial section for the cable joint explosion-proof box that the present invention is bent；
Fig. 2 is the radial cutaway view for the cable joint explosion-proof box that the present invention is bent.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
As depicted in figs. 1 and 2, a kind of flexible cable joint explosion-proof box, including the protective cover 1 with explosion-proof chamber 14,
The both ends of the protective cover 1 are provided with the cable port 11 that current supply cable passes through, and cable intermediate joint is located in explosion-proof chamber 14, described explosion-proof
Be filled with protective rubber in chamber 14, what the protective cover was provided with that several are connected with explosion-proof chamber rush down can hole 3, it is described to let out at energy hole 3
Seal is installed, flexible shroud 2 is connected with by pyrocondensation mode between the cable port 11 and cable protective kit.Flexible shroud
2 are made of rubber-like material or flexiplast, can basis by installing flexible flexible shroud 2 additional at the both ends of protective cover 1
Cable bend degree is installed, and solve thes problems, such as cable explosion-proof box among small space installation difficulty, appropriate cable
The flexural deformation of joint, applied widely, bending fitness is high.The cable of effective guard space narrow position, is avoided because of electricity
Other failures or injury caused by cable transition joint accident.
Wherein, the junction of the engaging lug 15 of the upper shell 12 and lower house 13 is provided with silicone rubber O-ring, to ensure
Junction seals.The seal include located at rush down can be in hole silicone rubber O-ring 31 and can be at outer end of hole mouth located at letting out
Stopple 32.Rush down can hole 3 there is pressure release guide effect, rush down can hole 3 can in the cable between joint failure in the case of, in time
The high pressure of inside is discharged, the protective rubber of the inside of explosion-proof chamber 14 filling can be effectively timely by arc light caused by puncture short
Extinguish, so as to the purpose for reaching knock down the flame, reducing fault coverage, ensure that the safe operation of other neighbouring cables.Therefore, prevent
Shield glue is needed using the fluid sealant for being mixed with fire retardant.
In addition, the protective cover 1 includes being connected to integral upper shell 12 and lower house 13, the upper casing by connector
Body 12 and lower house 13 include semicircle main paragraph, the half-conical changeover portion to connect with semicircle main paragraph at middle part, Yi Jiyu
The semicircular joint section that half-conical changeover portion connects.If the connector includes being correspondingly arranged at upper shell, lower house side
A dry engaging lug 15, the engaging lug are provided with the fixing hole 17 penetrated for connecting bolt, connecting bolt 16 through upper shell, under
By nut check after the mutually corresponding engaging lug fixing hole of housing, so as to which upper shell, lower house are tightly secured together.Adopt
With each component combination connected mode, convenience simple in construction, quick for installation, component are easy to transport and preserved, and component is versatile,
Suitable high-volume makes.
Above-mentioned cable joint explosion-proof box is primarily adapted for use in nominal 35~630mm210~35kV crosslinked polyethylenes electric power electricity
The preventing fires, the be explosion-proof of hot and cold contracting of cable, waterproof and enhancing cable intermediate joint protection mechanical stress.
Flexible shroud (flexible) is first inserted in not connected cable both ends, the complete cable intermediate joint of fabrication and installation fastens
Inside protective cover, the cooperation of fixing hole and connecting bolt that upper shell and lower house pass through both sides, sealing fastening fastens；Will be soft
Property sheath put to the correct position between protective cover cable port and cable protective kit, with air-heater or blowtorch heating after, flexibility shield
Set retraction makes cable be combined closely with protective cover both ends cable port；Filled out afterwards by the energy hole of rushing down on protective cover to explosion-proof chamber
The fluid sealant for being mixed with fire retardant is filled, then will rush down energy stopple with stopple lives.Above-mentioned cable joint explosion-proof box is primarily adapted for use in nominally
35~630mm2The preventing fires, the be explosion-proof of hot and cold contracting of 10~35kV cross-inked polyethylene power cables, in waterproof and enhancing cable indirectly
Head protection mechanical stress.
In addition to above preferred embodiment, the present invention also has other embodiments, and those skilled in the art can be according to this
Invention is variously modified and deformed, and without departing from the spirit of the present invention, all should belong in claims of the present invention and determine
The scope of justice.
Claims (5)
1. a kind of flexible cable joint explosion-proof box, including the protective cover with explosion-proof chamber, the both ends of the protective cover are provided with
The cable port that current supply cable passes through, cable intermediate joint are located in explosion-proof chamber, and protective rubber, the protection are filled with the explosion-proof chamber
Be covered with that several are connected with explosion-proof chamber rush down can hole, described let out can be provided with seal at hole, it is characterised in that：The electricity
Flexible shroud is connected with by pyrocondensation mode between cable mouth and cable protective kit, first, flexible shroud is inserted in not connected electricity
Cable both ends, the complete cable intermediate joint of fabrication and installation are fastened on inside protective cover；Then, flexible shroud is placed on protective cover cable
Correct position between mouth and cable protective kit, after air-heater or blowtorch heating, flexible shroud retraction makes cable and protective cover
Both ends cable port is combined closely；Finally, protective rubber is filled to explosion-proof chamber by the energy hole of rushing down on protective cover, after the completion of filling
To be rushed down with seal can hole sealing.
A kind of 2. flexible cable joint explosion-proof box according to claim 1, it is characterised in that：The protective cover includes
Integral upper shell and lower house are connected to by connector, the upper shell and lower house include the semicircle main body at middle part
Section, the half-conical changeover portion to connect with semicircle main paragraph, and the semicircular joint section to connect with half-conical changeover portion.
A kind of 3. flexible cable joint explosion-proof box according to claim 2, it is characterised in that：The connector includes
Upper shell, several engaging lugs of lower house side are correspondingly arranged at, the engaging lug is provided with to be consolidated for what connecting bolt penetrated
Determine hole, connecting bolt through after upper shell, the mutually corresponding engaging lug fixing hole of lower house by nut check, so as to by upper casing
Body, lower house are tightly secured together.
A kind of 4. flexible cable joint explosion-proof box according to claim 3, it is characterised in that：The upper shell is with
The junction of housing engaging lug is provided with silicone rubber O-ring.
A kind of 5. flexible cable joint explosion-proof box according to claim 1, it is characterised in that：The seal includes
Located at the sealing ring rushed down in energy hole and located at the stopple let out at energy outer end of hole mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711114581.1A CN107800108A (en) | 2017-11-13 | 2017-11-13 | A kind of flexible cable joint explosion-proof box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711114581.1A CN107800108A (en) | 2017-11-13 | 2017-11-13 | A kind of flexible cable joint explosion-proof box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107800108A true CN107800108A (en) | 2018-03-13 |
Family
ID=61534995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711114581.1A Pending CN107800108A (en) | 2017-11-13 | 2017-11-13 | A kind of flexible cable joint explosion-proof box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107800108A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879576A (en) * | 2018-07-19 | 2018-11-23 | 3M中国有限公司 | Cable-joint protector box |
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| DE10018009A1 (en) * | 2000-04-11 | 2001-10-25 | Jordan Paul Eltech | Expanding material seal for cable joint boxes formed of material expanding in the presence of moisture |
| CN203813391U (en) * | 2014-04-22 | 2014-09-03 | 鼎阳电力科技服务有限公司 | Power cable sealing and protecting sleeve |
| CN204290251U (en) * | 2014-12-22 | 2015-04-22 | 鼎阳电力科技服务有限公司 | A kind of cable intermediate joint flexible explosion-proof box |
| CN204578049U (en) * | 2015-04-03 | 2015-08-19 | 重庆大业电气有限责任公司 | The fire-retardant box of cable joint |
| CN205039508U (en) * | 2015-10-13 | 2016-02-17 | 廊坊辰瑞电气有限公司 | Cable intermediate joint waterproof explosion -proof box |
| CN105576596A (en) * | 2016-03-21 | 2016-05-11 | 江苏省电力公司扬州市江都供电公司 | Novel-cable intermediate-joint explosion-proof apparatus |
| CN205429684U (en) * | 2016-03-21 | 2016-08-03 | 江苏省电力公司扬州市江都供电公司 | Novel cable intermediate head is explosion -proof device |
| CN106207942A (en) * | 2016-07-27 | 2016-12-07 | 国网山东省电力公司茌平县供电公司 | Cable intermediate joint protecting box |
| CN107104413A (en) * | 2017-06-25 | 2017-08-29 | 国网江苏省电力公司扬州市江都区供电公司 | A kind of cable connector reinforcing device |
| CN107294047A (en) * | 2017-06-25 | 2017-10-24 | 国网江苏省电力公司扬州市江都区供电公司 | A kind of cable explosion-proof device |
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2017
- 2017-11-13 CN CN201711114581.1A patent/CN107800108A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10018009A1 (en) * | 2000-04-11 | 2001-10-25 | Jordan Paul Eltech | Expanding material seal for cable joint boxes formed of material expanding in the presence of moisture |
| CN203813391U (en) * | 2014-04-22 | 2014-09-03 | 鼎阳电力科技服务有限公司 | Power cable sealing and protecting sleeve |
| CN204290251U (en) * | 2014-12-22 | 2015-04-22 | 鼎阳电力科技服务有限公司 | A kind of cable intermediate joint flexible explosion-proof box |
| CN204578049U (en) * | 2015-04-03 | 2015-08-19 | 重庆大业电气有限责任公司 | The fire-retardant box of cable joint |
| CN205039508U (en) * | 2015-10-13 | 2016-02-17 | 廊坊辰瑞电气有限公司 | Cable intermediate joint waterproof explosion -proof box |
| CN105576596A (en) * | 2016-03-21 | 2016-05-11 | 江苏省电力公司扬州市江都供电公司 | Novel-cable intermediate-joint explosion-proof apparatus |
| CN205429684U (en) * | 2016-03-21 | 2016-08-03 | 江苏省电力公司扬州市江都供电公司 | Novel cable intermediate head is explosion -proof device |
| CN105576596B (en) * | 2016-03-21 | 2017-07-28 | 江苏省电力公司扬州市江都供电公司 | A kind of novel cable transition joint explosion-protection equipment |
| CN106207942A (en) * | 2016-07-27 | 2016-12-07 | 国网山东省电力公司茌平县供电公司 | Cable intermediate joint protecting box |
| CN107104413A (en) * | 2017-06-25 | 2017-08-29 | 国网江苏省电力公司扬州市江都区供电公司 | A kind of cable connector reinforcing device |
| CN107294047A (en) * | 2017-06-25 | 2017-10-24 | 国网江苏省电力公司扬州市江都区供电公司 | A kind of cable explosion-proof device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879576A (en) * | 2018-07-19 | 2018-11-23 | 3M中国有限公司 | Cable-joint protector box |
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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: 20180313 |