CN107293869A - The insulation protecting device of snap joint in the middle of a kind of flexible cable - Google Patents
The insulation protecting device of snap joint in the middle of a kind of flexible cable Download PDFInfo
- Publication number
- CN107293869A CN107293869A CN201710566440.7A CN201710566440A CN107293869A CN 107293869 A CN107293869 A CN 107293869A CN 201710566440 A CN201710566440 A CN 201710566440A CN 107293869 A CN107293869 A CN 107293869A
- Authority
- CN
- China
- Prior art keywords
- bar
- insulation
- shaped trough
- protecting device
- snap joint
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses covered on a kind of insulation protecting device of snap joint in the middle of flexible cable, including insulator foot, some insulation fixing plates, insulated cable seat and insulation；Insulated cable seat is made up of flexible silicone rubber and be provided with some in top surface opening and pre-and post perforative bar-shaped trough, and those bar-shaped troughs are separate, and is provided with each bar-shaped trough in dividing plate, each bar-shaped trough between two side and passes through the dividing plate and form striation in discharge；Lid is coated on the insulated cable seat in the insulation, and the insulated cable seat is fixed with the insulator foot by the slot with the insulation fixing plate grafting.The insulation protecting device of the present invention can realize high temperature-proof, anti-slip, anti-lost territory, anti-short circuit, protected against the effects of immersion, anti-wear 6 safeguard functions, while volume is further reduced by Structured Design, it is lighter, it is easier to carry, save cost.
Description
Technical field
The present invention relates to the insulation that distribution network load turns snap joint in the middle of power supply field, more particularly to a kind of flexible cable
Protector.
Background technology
Since 2014, domestic 10kV (0.4kV) distribution network load turns power supply field by using flexible cable operation work
Device is provided with larger innovation and development, have developed various panoramic operation Work tools, fast wherein in the middle of flexible cable
Quick coupling is exactly a kind of important tool of quick connection flexible cable, because the integrity problem of its connection is easily caused centre soon
Quick coupling heating, there is discharging gap and cause the equipment faults such as lost territory, short circuit, and then influence power grid security and personal injury, make
Into bad social influence.
For this potential safety hazard, current domestic-developed has gone out the protection of snap joint in the middle of different types of flexible cable
Box device, mainly snap joint in the middle of three-phase flexible cable is placed in the protecting box made by epoxy resin board simultaneously or
Split-phase is placed.There is problems with existing protection box device：1. its heat resistance is made typically using hard epoxy material,
Heatproof is no more than 100 degrees Celsius, and adhesive force is low, and snap joint easily slips sliding race and loses protection in the middle of shielded flexible cable
Effect；2. the protecting box of the shared single groove profile of snap joint fails effectively to prevent phase fault, three in the middle of three-phase flexible cable
The universal of phase separation type does not consider the requirement that discharging gap is more than 15 centimetres, and discharging gap is more than the protecting box of 15 centimetres of requirement
Volume is big, heavy, and cost is high, difficult；3. being isolated by the direct insulation against ground of epoxy resin board, easy to wear, easily water inlet is made
Discharge in couples and short circuit of intaking；Cause volume larger 4. structure setting is unreasonable, assemble and use operating difficulties.
Therefore, a kind of high performance insulation protecting device is developed, the raising for power supply reliability has great importance.
The content of the invention
For the shortcoming that snap joint protecting box is present in the middle of existing flexible cable, the invention provides a kind of flexible cable
The insulation protecting device of middle snap joint, mainly realizes high temperature-proof, anti-slip, anti-lost territory, anti-short circuit, protected against the effects of immersion, anti-wear 6
Item safeguard function, while volume is further reduced by Structured Design, it is lighter, it is easier to carry, save cost.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
The insulation protecting device of snap joint in the middle of a kind of flexible cable, including insulator foot, some insulation fixing plates, absolutely
Covered in edge cable block and insulation；Some insulation fixing plates are fixed on the insulator foot；The insulated cable seat is by soft
Property silicon rubber be made, insulated cable seat is provided with some in top surface opening and pre-and post perforative bar-shaped trough, those bar-shaped trough phases
It is mutually independent, and be provided with each bar-shaped trough between two side in dividing plate, each bar-shaped trough by dividing plate formation electric discharge seam
Gap；Insulated cable seat is provided with some in bottom surface opening and the slot that is shifted to install with the bar-shaped trough, the slot and institute
State insulation fixing plate one-to-one corresponding；Lid includes top plate and side plate in the insulation, the side plate of wherein front and rear sides be respectively equipped with and
The one-to-one breach of bar-shaped trough；Lid is coated on insulated cable seat in the insulation, the insulated cable seat with
The insulator foot is fixed by the slot with the insulation fixing plate grafting.
Optionally, some bar-shaped troughs are arranged in parallel is set, insulated cable seat in bar-shaped trough region both sides with
And the slot is formed between adjacent bar groove, those slots are arranged in parallel.
Optionally, some insulation fixing plates are parallel on the insulator foot, the insulation fixing plate and institute
Insulator foot is stated to be vertically arranged.
Optionally, the insulation fixing plate inserts the height of the insulated cable seat higher than the height where the dividing plate.
Optionally, the bar-shaped trough is that the breach covered in U-type groove, the insulation is inverted U, and both cooperatively form ellipse
Through hole.
Optionally, the bottom surface of the insulator foot is interval with some legs.
Optionally, the insulated cable seat is provided with three bar-shaped troughs, and the dividing plate positioned at middle bar-shaped trough is by left and right two
Sub-dividing plate is constituted；Two sub-dividing plate sides are connected respectively forms the electric discharge seam between the side wall of the middle bar-shaped trough, opposite side
Gap.
Optionally, the dividing plate positioned at both sides bar-shaped trough connects corresponding bar-shaped trough close to the middle bar-shaped trough side respectively
Side wall, and form between the side wall of opposite side the striation in discharge.
Optionally, some reinforcements are respectively equipped with the dividing plate of the both sides bar-shaped trough, those reinforcements are in left-right direction
Extend and parallel interval is set.
Optionally, the both sides bar-shaped trough is provided with support bar respectively at the side wall away from the middle bar-shaped trough, accordingly
The side of dividing plate is overlapped on the support bar.
The beneficial effects of the invention are as follows：
1. the main body of insulation protecting device is made up of flexible silicone rubber, heat resistance is good, prevents cable intermediate joint from generating heat
High temperature causes insulating capacity to decline；
2. improving the adhesive force between flexible cable and middle snap joint and insulation protecting device, prevent middle quick
Joint slips sliding run；
3. increase alternate, relatively discharging gap, alternate and relatively dielectric strength is lifted, dielectric strength deficiency is prevented
Cause relatively to discharge and anti-phase fault；
4. lifting waterproof, moistureproof level, prevent immersion from causing relatively to discharge and phase fault；
5. lid has fixed limit function in insulation, prevent from slipping sliding race；
6. increase base contacts leg with ground, prevent direct wear protection from insulating.
6 safeguard functions more than by realizing, will greatly improve flexible cable centre snap joint in protector
Safe and reliable operation ability, it is ensured that bypass turns effective implementation of power supply lotus, promotes power supply enterprise further to lift power supply reliability.
Brief description of the drawings
Fig. 1 is the overall structure diagram of insulation protecting device of the present invention；
Fig. 2 is the decomposition texture schematic diagram of the angle of insulation protecting device one of the present invention；
Fig. 3 is the decomposition texture schematic diagram of another angle of insulation protecting device of the present invention；
Fig. 4 is the sectional view of insulated cable seat of the present invention；
Fig. 5 is the partial structural diagram of insulated cable seat of the present invention；
Fig. 6 is the mplifying structure schematic diagram of a-quadrant in Fig. 5.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
With reference to Fig. 1-3, in the middle of a kind of flexible cable the insulation protecting device of snap joint include insulator foot 1, it is some absolutely
Edge fixed plate 2, insulated cable seat 3 and the upper lid 4 of insulation；Some insulation fixing plates 2 are fixed on the insulator foot 1；Institute
State insulated cable seat 3 to be made up of flexible silicone rubber, the insulated cable seat is provided with some in top surface opening and pre-and post perforative bar
Shape groove 31, those bar-shaped troughs 31 are separate, and are provided with dividing plate 32, each bar-shaped trough in each bar-shaped trough 31 between two side
Pass through the dividing plate 32 formation striation in discharge in 31；Insulated cable seat 3 provided with it is some in bottom surface opening and with the bar shaped
The slot 33 that groove 31 is shifted to install, the slot 33 is corresponded and is adapted with the insulation fixing plate 2；Covered in the insulation
4 include top plate 41 and side plate 42, and the side plate 42 of wherein front and rear sides is respectively equipped with and the one-to-one breach of the bar-shaped trough 31
43；Lid 4 is coated on the insulated cable seat 3 in the insulation, and the insulated cable seat 3 passes through institute with the insulator foot 1
Slot 33 is stated to fix with the grafting of insulation fixing plate 2.
The insulator foot 1, insulation fixing plate 2 and the upper lid 4 of insulation made respectively by hard insulation one-shot forming and
Into such as polyethylene board.
The major function one of insulator foot 1 is that interlayer is exhausted between playing reinforcement flexible cable centre snap joint over the ground
Edge；Two be that hard supporting role is played to insulation protective jacket, improves the stability of insulation protecting device.The insulator foot 1
Bottom surface is interval with some legs 11, and such as three bar supporting feets arranged in parallel make insulation protecting device and surface separation, i.e.,
Being conducive to the dielectric level for preventing water logging from causing to decline causes snap joint in the middle of cable to discharge over the ground and cause phase fault, together
When as leg, it is to avoid the friction damage of insulation protecting device and ground.
Some insulation fixing plates 2 are parallel on the insulator foot 1, the insulation fixing plate 2 with it is described absolutely
Edge base 1 is vertically arranged.Some bar-shaped troughs 31 are arranged in parallel to be set, and the insulated cable seat 3 is in the two of bar-shaped trough region
The slot 33 is formed between side and adjacent bar groove, those slots 33 are arranged in parallel.With reference to Fig. 4, the depth of the slot 33
The height spent with the insulation fixing plate 2 matches, and the height that the insulation fixing plate 2 inserts the insulated cable seat 3 is higher than
Height where the dividing plate 32, on the one hand realizes the fixation of insulated cable seat 3 and insulator foot 1；On the other hand rise
To supporting role, the intensity and hardness of heavy insulation cable seat 3, it is ensured that insulated cable seat 3 is indeformable, while not influenceing flexible electrical
Snap joint is put into insulated cable seat 3 in the middle of cable, while further improving the stability of insulation protecting device.In addition, logical
Cross above-mentioned be arranged between adjacent bar groove 31 and form the three of silicone rubber insulation material-insulation fixing plate-silicone rubber insulation material
Layer isolation structure, effectively improves phase insulation isolating power, prevents phase fault.
The bar-shaped trough 31 is that the breach 43 covered in U-type groove, the insulation is inverted U, and it is logical that both cooperatively form ellipse
Hole.Flexible cable and middle snap joint are arranged within the U-type groove, and two ends are drawn by the ellipse hole, further
Sliding race will not also be slipped by playing lid 4 in spacing effect, insulation, while rainwater-proof, anti-external force destruction function are significantly increased.
With reference to Fig. 4-5, prevented below with the insulation that snap joint in the middle of three-phase flexible cable is bypassed applied to 10kV/0.4kV
It is further described exemplified by protection unit.
The insulated cable seat 3 is provided with three bar-shaped trough 31-1,31-2 and 31-3 arranged in parallel；Middle bar-shaped trough 31-1
Dividing plate 32-1 be made up of left and right two sub-dividing plate 324, the side of two sub-dividing plate 324 connects the middle bar-shaped trough 31-1's respectively
Striation in discharge a is formed between side wall, opposite side；Left side bar-shaped trough 31-2 dividing plate 32-2 sides connection left side bar-shaped trough 31-2's
Right side wall, the left side wall formation striation in discharge b of opposite side and left side bar-shaped trough 31-2；Right bars groove 31-3 dividing plate 32-3 mono-
Side connection right bars groove 31-3 left side wall, the right side wall formation striation in discharge c of opposite side and right bars groove 31-2.By three
Phase flexible cable is respectively placed in three bar-shaped troughs, then the distance of intermediate cable and both sides cable for two bar shaped groove center lines it
Between distance, and discharging gap be striation in discharge (a and b, a and the distance between c), i.e., more than the distance between two center lines,
So as to be reduced on the premise of the alternate discharging gap of safety is ensured between the distance between two-phase cable, two cables without setting
15cm distance can meet the requirement that discharging gap is more than 15cm, reduce overall volume.
Further, some reinforcements 325 are respectively equipped with the dividing plate 32-2 and 32-3, those reinforcements 325 are along left and right
Simultaneously parallel interval sets to improve the support force of dividing plate for direction extension, dividing plate is kept horizontality.Further, with reference to Fig. 6,
Described both sides bar-shaped trough 31-2,31-3 is provided with support bar 326 respectively at the side wall away from the middle bar-shaped trough 31-1, accordingly
The side in dividing plate 32-2,32-3 formation gap is overlapped on the support bar 326 further to avoid dividing plate sagging respectively.
The setting of insulated cable seat 3 ensure that layer insulation and air over the ground between flexible cable centre snap joint over the ground
Discharging gap insulating requirements, it is ensured that snap joint layer insulation and air between phase and phase between phase and phase in the middle of flexible cable
Discharging gap insulating requirements；Secondly silicon rubber has scalability, plasticity, elasticity make it have preferable adhesive force, can
To ensure to be placed in insulation protective jacket, snap joint does not slip sliding race in the middle of flexible cable, it is ensured that the stability of operation；It is new in addition
Clever rational structural modality design substantially reduces the volume of insulation protecting device compared with similar products, mitigates weight and is easy to remove
Fortune, while material is reduced, it is cost-effective.
Above-described embodiment is only used for further illustrating the insulating protection of snap joint in the middle of a kind of flexible cable of the present invention
Device, but the invention is not limited in embodiment, it is any that every technical spirit according to the present invention is made to above example
Simple modification, equivalent variations and modification, each fall within the protection domain of technical solution of the present invention.
Claims (10)
1. the insulation protecting device of snap joint in the middle of a kind of flexible cable, it is characterised in that：Including insulator foot, some insulation
Covered in fixed plate, insulated cable seat and insulation；
Some insulation fixing plates are fixed on the insulator foot；
Insulated cable seat is made up of flexible silicone rubber, and the insulated cable seat in top surface opening and front and rear runs through provided with some
Bar-shaped trough, those bar-shaped troughs are separate, and are provided with dividing plate, each bar-shaped trough and lead between two side in each bar-shaped trough
Cross the dividing plate formation striation in discharge；Insulated cable seat is shifted to install in bottom surface opening and with the bar-shaped trough provided with some
Slot, the slot and the insulation fixing plate are corresponded；
Lid includes top plate and side plate in the insulation, and the side plate of wherein front and rear sides is respectively equipped with to be corresponded with the bar-shaped trough
Breach；
Lid is coated on the insulated cable seat in the insulation, and the insulated cable seat is inserted with the insulator foot by described
Groove is fixed with the insulation fixing plate grafting.
2. the insulation protecting device of snap joint in the middle of flexible cable according to claim 1, it is characterised in that：If described
Dry bar-shaped trough is arranged in parallel to be set, and the insulated cable seat forms institute between the both sides in bar-shaped trough region and adjacent bar groove
Slot is stated, those slots are arranged in parallel.
3. the insulation protecting device of snap joint in the middle of flexible cable according to claim 2, it is characterised in that：If described
Dry insulation fixing plate is parallel on the insulator foot, and the insulation fixing plate is vertically arranged with the insulator foot.
4. the insulation protecting device of snap joint in the middle of flexible cable according to claim 1, it is characterised in that：It is described exhausted
Edge fixed plate inserts the height of the insulated cable seat higher than the height where the dividing plate.
5. the insulation protecting device of snap joint in the middle of flexible cable according to claim 1, it is characterised in that：The bar
Shape groove is that the breach covered in U-type groove, the insulation is inverted U, and both cooperatively form ellipse hole.
6. the insulation protecting device of snap joint in the middle of flexible cable according to claim 1, it is characterised in that：It is described exhausted
The bottom surface of edge base is interval with some legs.
7. the insulation protecting device of snap joint in the middle of flexible cable according to claim 1, it is characterised in that：It is described exhausted
Edge cable block is provided with three bar-shaped troughs, and the dividing plate positioned at middle bar-shaped trough is made up of left and right two sub-dividing plate；Two sub-dividing plates one
Side connects form the striation in discharge between the side wall of the middle bar-shaped trough, opposite side respectively.
8. the insulation protecting device of snap joint in the middle of flexible cable according to claim 7, it is characterised in that：Positioned at two
The dividing plate of side bar-shaped trough connects side wall of the corresponding bar-shaped trough close to the middle bar-shaped trough side respectively, and with the side wall of opposite side
Between form the striation in discharge.
9. the insulation protecting device of snap joint in the middle of flexible cable according to claim 8, it is characterised in that：Described two
Some reinforcements are respectively equipped with the dividing plate of side bar-shaped trough, those reinforcements extend in left-right direction and parallel interval is set.
10. the insulation protecting device of snap joint in the middle of flexible cable according to claim 8 or claim 9, it is characterised in that：Institute
State both sides bar-shaped trough and be provided with support bar respectively at the side wall away from the middle bar-shaped trough, the side of respective diaphragms is overlapped in institute
State on support bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566440.7A CN107293869B (en) | 2017-07-12 | 2017-07-12 | Insulation protection device of quick-operation joint in middle of flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566440.7A CN107293869B (en) | 2017-07-12 | 2017-07-12 | Insulation protection device of quick-operation joint in middle of flexible cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107293869A true CN107293869A (en) | 2017-10-24 |
| CN107293869B CN107293869B (en) | 2023-06-13 |
Family
ID=60101332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710566440.7A Active CN107293869B (en) | 2017-07-12 | 2017-07-12 | Insulation protection device of quick-operation joint in middle of flexible cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN107293869B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706852A (en) * | 2017-11-23 | 2018-02-16 | 国网上海市电力公司 | One kind configuration fast cable joint insulation protecting box |
| CN108879572A (en) * | 2018-08-15 | 2018-11-23 | 深圳供电局有限公司 | A kind of high-voltage cable middle joint protecting crust with stuffing box |
| CN108899859A (en) * | 2018-08-14 | 2018-11-27 | 深圳供电局有限公司 | A kind of plate partitioned compartment type high-voltage cable middle joint protecting crust |
| CN109961912A (en) * | 2017-12-26 | 2019-07-02 | 厦门市众慧悦和科技有限公司 | A kind of insulation protecting device of single-phase flexible cable centre quick coupling |
| CN112018716A (en) * | 2020-09-21 | 2020-12-01 | 安徽伊法拉电气股份有限公司 | Insulation protection device for quick connector in middle of flexible cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706852A (en) * | 2017-11-23 | 2018-02-16 | 国网上海市电力公司 | One kind configuration fast cable joint insulation protecting box |
| CN109961912A (en) * | 2017-12-26 | 2019-07-02 | 厦门市众慧悦和科技有限公司 | A kind of insulation protecting device of single-phase flexible cable centre quick coupling |
| CN108899859A (en) * | 2018-08-14 | 2018-11-27 | 深圳供电局有限公司 | A kind of plate partitioned compartment type high-voltage cable middle joint protecting crust |
| CN108899859B (en) * | 2018-08-14 | 2024-04-09 | 深圳供电局有限公司 | Flashboard compartment type high-voltage cable middle joint protecting shell |
| CN108879572A (en) * | 2018-08-15 | 2018-11-23 | 深圳供电局有限公司 | A kind of high-voltage cable middle joint protecting crust with stuffing box |
| CN108879572B (en) * | 2018-08-15 | 2024-04-19 | 深圳供电局有限公司 | High-voltage cable middle joint protective shell with packing box |
| CN112018716A (en) * | 2020-09-21 | 2020-12-01 | 安徽伊法拉电气股份有限公司 | Insulation protection device for quick connector in middle of flexible cable |
| CN112018716B (en) * | 2020-09-21 | 2021-12-28 | 安徽伊法拉电气股份有限公司 | Insulation protection device for quick connector in middle of flexible cable |
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| CN107293869B (en) | 2023-06-13 |
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