CN108832585A - High-tension cable pyrocondensation waterproof sealing cap - Google Patents
High-tension cable pyrocondensation waterproof sealing cap Download PDFInfo
- Publication number
- CN108832585A CN108832585A CN201810715621.6A CN201810715621A CN108832585A CN 108832585 A CN108832585 A CN 108832585A CN 201810715621 A CN201810715621 A CN 201810715621A CN 108832585 A CN108832585 A CN 108832585A
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- CN
- China
- Prior art keywords
- cable
- capsule
- casing
- waterproof sealing
- swivel nut
- 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.)
- Granted
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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
- H02G15/02—Cable terminations
- H02G15/04—Cable-end sealings
- H02G15/043—Cable-end sealings with end caps, e.g. sleeve closed at one end
- H02G15/046—Cable-end sealings with end caps, e.g. sleeve closed at one end with bores or protruding portions allowing passage of cable conductors
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- Cable Accessories (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention belongs to the waterproof sealing cap fields of cable ferrule, and in particular to high-tension cable pyrocondensation waterproof sealing cap.The present invention is low to the thickness and casing diameter degree of dependence of cable, can guiding cable to various sizes and casing can preferably be blocked, whole device uses insulating materials and increases fire retardant and prepared, fire protecting performance is excellent, suitable for cable protection pipe, the protection and closure of all kinds of cable nozzles such as the cable incoming-outgoing wire mouth of substation, waterproof can be played simultaneously, fire prevention, insulation function, it is convenient to dismount, convenient for the constructing operation of early period and the maintenance management in later period, no metalwork leakage, ageing resistance, insulation performance, waterproof fireproofing performance, corrosion resistance is good, application scenarios are extensive.
Description
Technical field
The invention belongs to the waterproof sealing cap fields of cable ferrule, and in particular to the anti-water seal of high-tension cable pyrocondensation
Cap.
Background technique
The guiding cable on ground is drawn from cable duct by substation, needs to block the gap between casing and cable,
Fire-proof mud is mainly used, although which can protect closure site in short term, only carrying out closure with fire-proof mud will cause closure
Not firm, the problems such as not fastening, fire-proof mud also influence vulnerable to external condition over time and gap or cracking occur, deposit
In some potential safety problems.Especially in winter, rainwater can be immersed in casing and be frozen, and will ultimately result in the cable event in casing
Barrier, therefore research and develop the problem of one kind cable waterproof sealing cap convenient for installation and maintenance becomes urgent need to resolve.
Summary of the invention
The present invention is in order to solve above-mentioned problems of the prior art, and the present invention provides the anti-water seals of high-tension cable pyrocondensation
Cap, can Fast Installation and disassembly, appearance looks elegant avoids rain erosion without metalwork after installation, and waterproof performance is excellent, use
Fire prevention, isolation material, ensure that the safe and reliable of block-up position.
The specific technical solution that the present invention uses is：
High-tension cable pyrocondensation waterproof sealing cap, is arranged in the leading-out terminal of high-tension cable, and the leading-out terminal includes casing and electricity
Cable ontology, the cable body are sleeved in casing, the cannula tip setting waterproof sealing cap, outside the waterproof sealing cap
It is set with shell, the waterproof sealing cap includes end cap and Expansion sealing structure, and structure is sleeved on the end cap in a ring
Tube end, the Expansion sealing structure include the diaphragm seal set gradually, expansion ring plate and packing, and the expansion ring plate is cut
Face is in N-shaped groove-like structure, and the inside and outside lateral separation of the expansion ring plate is not provided with expansion tooth, and the packing is arranged swollen
In the groove-like structure of tensioner ring piece, the end cap and expansion loop on piece are correspondingly arranged on perforative through-hole, setting connection in through-hole
Screw rod, the connecting screw are fixed after sequentially passing through expansion ring plate, diaphragm seal and end cap by fastening nut.
The shell goes to upper and lower separate structure, including upper capsule and lower capsule, is provided with and is wrapped on the end cap
Upper envelope swivel nut on cable body, and the lower envelope swivel nut being wrapped on outside of sleeve wall, the upper envelope swivel nut, lower envelope swivel nut are set
Be equipped with external screw thread, the upper capsule is threadedly coupled by upper envelope swivel nut with end cap, the lower capsule by lower envelope swivel nut with
End cap is threadedly coupled.
The lower edge of the upper capsule is arranged on lower envelope swivel nut, along it on the lower edge of the upper capsule and lower capsule
Between be provided with capsule circle.
The first trapezoidal ladder-shaped sealing ring of section is provided between the upper edge and cable body of the upper capsule, it is described
The first ladder-shaped sealing ring be sleeved on cable body, the upper edge of the upper capsule is set as bell mouth shape structure.
It is provided with the second trapezoidal ladder-shaped sealing ring of section between the lower edge and casing of the lower capsule, described
Two ladder-shaped sealing rings are sleeved on casing, and the lower edge of the lower capsule is set as bell mouth shape structure.
Cushion is provided between the end cap and casing.
Silica gel is coated on the diaphragm seal.
The cannula tip is provided with the waterproof elbow of semicircular arc-shaped structure.
The beneficial effects of the invention are as follows：
The present invention is sealed using dilating principle, and the thickness and casing diameter degree of dependence to cable are low, can be to each
The guiding cable and casing of kind size are preferably blocked, and improve closure efficiency, whole device is using insulating materials and increases
Fire retardant, fire protecting performance is excellent, suitable for cable protection pipe, substation cable into and out of all kinds of cable nozzles such as line mouth guarantor
Shield and closure, while waterproof, fire prevention, insulation function are played, when maintenance, only need simple tool that can dismantle, and the side of reset
Just, it convenient for the maintenance management in the constructing operation of early period and later period, and leaks outside without metalwork, dismounts convenient, ageing resistance, insulating properties
Energy, waterproof fireproofing performance, corrosion resistance are good, and application scenarios are extensive.
Detailed description of the invention
Fig. 1 is the structural schematic diagram under use state of the invention；
Fig. 2 is the internal structure enlarged diagram of waterproof sealing cap of the present invention；
Fig. 3 is the structural schematic diagram for expanding ring plate；
Fig. 4 is the structural schematic diagram of diaphragm seal；
In attached drawing, 1, casing, 2, cable body, 3, end cap, 4, diaphragm seal, 5, expansion ring plate, 6, packing, 7, expansion tooth,
8, connecting screw, 9, fastening nut, 10, upper capsule, 11, lower capsule, 12, upper envelope swivel nut, 13, lower envelope swivel nut, 14, capsule circle,
15, the first ladder-shaped sealing ring, the 16, second ladder-shaped sealing ring, 17, cushion, 18, waterproof elbow.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the invention will be further described：
Specific embodiment is as shown in Figures 1 and 2, and the present invention is high-tension cable pyrocondensation waterproof sealing cap, is arranged in high-tension cable
Leading-out terminal, the leading-out terminal includes casing 1 and cable body 2, and the cable body 2 is sleeved in casing 1, described
Waterproof sealing cap is arranged in 1 end of casing, is set with shell outside the waterproof sealing cap, and the waterproof sealing cap includes end cap 3 and swollen
Swollen sealing structure, structure is sleeved on 1 end of casing to the end cap 3 in a ring, and the Expansion sealing structure includes successively setting
Diaphragm seal 4, expansion ring plate 5 and the packing 6 set, 5 section of expansion ring plate are in N-shaped groove-like structure, the expansion ring plate 5
Inside and outside lateral separation be not provided with expansion tooth 7, the packing 6 be arranged in expansion ring plate 5 groove-like structure in, the end
It is correspondingly arranged on perforative through-hole on lid 3 and expansion ring plate 5, connecting screw 8 is set in through-hole, the connecting screw 8 is successively
It is fixed by fastening nut 9 after expansion ring plate 5, diaphragm seal 4 and end cap 3.The principle of the present invention is by cricoid packing 6
Extrusion expansion ring plate 5, as shown in figure 3,7 spreading of expansion tooth that will expand ring plate 5, takes the diaphragm seal 4 being placed in expansion ring plate 5 and exist
It expands ring plate 5 and end cap 3 squeezes jointly and squeezes diaphragm seal 4 wherein, so that the inner tubal wall and cable of diaphragm seal 4 and casing 1
The extruding of ontology 2 is fixed as entirety, while ensure that have preferable sealed waterproof effect by diaphragm seal 4 and avoid end cap 3 de-
It falls, provides installation position for shell installation.
The expansion ring plate 5 and packing 6 uses split left and right structures to form for ring-type, is easy to use, the sealing of setting
Piece 4 is interspersed on cable in advance when in use or cuts off diaphragm seal 4 and is set with, and the shell of setting is also left and right point
Body is adhesively fixed after reaching scene, is convenient for safeguarding.
Specific embodiment 2, as shown in Fig. 2, the shell goes to upper and lower separate structure, including upper capsule 10 and lower capsule
11, the upper envelope swivel nut 12 being wrapped on cable body 2 is provided on the end cap 3, and under being wrapped on 1 lateral wall of casing
Swivel nut 13 is sealed, the upper envelope swivel nut 12, lower envelope swivel nut 13 are provided with external screw thread, and the upper capsule 10 is by upper envelope swivel nut 12
It is threadedly coupled with end cap 3, the lower capsule 11 is threadedly coupled by lower envelope swivel nut 13 with end cap 3.Upper capsule 10 and lower capsule
11 fix by the external screw thread being arranged on internal end cap 3, and overall appearance is neat, and no metalwork avoids rain outside being exposed to
Water etc. is overlooked, and shell has good insulation performance using fire prevention material such as electrician's wood.
Further, the lower edge of the upper capsule 10 is arranged on lower envelope swivel nut 13, the lower edge of the upper capsule 10
Capsule circle 14 is provided between the upper edge of lower capsule 11.Capsule circle 14 squeezes after upper capsule 10 screws in respectively with lower capsule 11
Between two capsules, the sealing of the seam to two capsules is played, there is good sealing effect.
Further, the first trapezoidal ladder of section is provided between the upper edge of the upper capsule 10 and cable body 2
Shape sealing ring 15, first ladder-shaped sealing ring 15 are sleeved on cable body 2, and the upper edge of the upper capsule 10 is set as
Bell mouth shape structure.The second trapezoidal ladder-shaped sealing ring of section is provided between the lower edge and casing 1 of the lower capsule 11
16, second ladder-shaped sealing ring 16 is sleeved on casing 1, and the lower edge of the lower capsule 11 is set as bell mouth shape knot
Structure.By the first ladder-shaped sealing ring 15 of setting, the second ladder-shaped sealing ring 16 to the end up and down of upper capsule 10 and lower capsule 11
Position is sealed, and principle is the edge by bell mouth shape when corresponding capsule screws in, by the sealing ring of trapezium structure
Receipts pressure is carried out, and sealing ring is that rubber material has certain elasticity, so that the opening of envelope end is filled out by sealing ring up and down
Expire and seal, ensure that the leakproofness of shell, the Expansion sealing structure collective effect at inventive shell and end cap plays double
The effect of weight waterproof.
Further, it is provided with cushion 17 between the end cap 3 and casing 1, since casing 1 is metal material,
End portion treatment and out-of-flatness, it is bad that the cushion 17 of setting prevents end cap 3 from being pressed against, while playing the sealing to end cap 3 and casing and making
With raising leakproofness.
Further, silica gel is coated on the diaphragm seal 4.And fastening nut 9 is pre- next on end cap 3, along electricity
Silica gel is perfused into end cap 3 for cable ontology 2, and continues to screw fastening nut 9, so that silica gel overflows between end cap 3 and cable body 2
Out, to know to form preferable sealing between the diaphragm seal 4 and end cap 3 on the downside of end cap 3, the packing 6 of setting first will be swollen
By diaphragm seal 4, so that end cap 3 and diaphragm seal 4 form sealing space, it is detectable that silica gel is perfused in 5 lower end distending of tensioner ring piece at this time
Whether the sealing space is closed, if closing can also be filled up by silica gel by not closing, the mode of the perfusion silica gel is in cable
It is set with heat-shrink tube on ontology 2, and heat-shrink tube is encased to the upper envelope swivel nut of end cap 3 simultaneously, silicon is perfused into end cap 3 by syringe
Glue, volume silica gel caused by avoiding due to gravity are flow backwards, meanwhile, the pyrocondensation tube layer of setting also again forms end cap and seals, into
One step lift-off seal effect.
Further, 1 end of casing is provided with the waterproof elbow 18 of semicircular arc-shaped structure.So that waterproof sealing cap and
Shi Jinshui is also avoided that moisture enters in casing 1 or enters cable duct along casing 1, ensure that normal, the safety fortune of equipment
Row.
Claims (7)
1. high-tension cable pyrocondensation waterproof sealing cap, is arranged in the leading-out terminal of high-tension cable, the leading-out terminal includes casing (1) and electricity
Cable ontology (2), the cable body (2) are sleeved in casing (1), and waterproof sealing cap is arranged in casing (1) end, described
Waterproof sealing cap outside be set with shell, it is characterised in that：The waterproof sealing cap includes end cap (3) and Expansion sealing structure, institute
Structure is sleeved on casing (1) end to the end cap (3) stated in a ring, and the Expansion sealing structure includes the diaphragm seal set gradually
(4), ring plate (5) and packing (6) are expanded, expansion ring plate (5) section is in N-shaped groove-like structure, the expansion ring plate (5)
Inside and outside lateral separation be not provided with expansion tooth (7), the packing (6) setting expansion ring plate (5) groove-like structure in, institute
The end cap (3) stated and it is correspondingly arranged on perforative through-hole in expansion ring plate (5), connecting screw (8) is set in through-hole, the company
It connects after screw rod (8) sequentially passes through expansion ring plate (5), diaphragm seal (4) and end cap (3) and is fixed by fastening nut (9)；The shell
Body goes to upper and lower separate structure, including upper capsule (10) and lower capsule (11), is provided on the end cap (3) and is wrapped in cable
Upper envelope swivel nut (12) on ontology (2), and the lower envelope swivel nut (13) being wrapped on casing (1) lateral wall, the upper envelope swivel nut
(12), lower envelope swivel nut (13) is provided with external screw thread, and the upper capsule (10) connects by upper envelope swivel nut (12) and end cap (3) screw thread
It connects, the lower capsule (11) is threadedly coupled by lower envelope swivel nut (13) with end cap (3), the cable body (2) and upper envelope
Heat-shrink tube is enclosed between swivel nut (12), heat-shrink tube one end and cable body (2) are set with, and the other end is sleeved on envelope swivel nut (12)
Lateral surface.
2. high-tension cable pyrocondensation waterproof sealing cap according to claim 1, it is characterised in that：Under the upper capsule (10)
Along being arranged on lower envelope swivel nut (13), capsule is provided between the lower edge of the upper capsule (10) and the upper edge of lower capsule (11)
It encloses (14).
3. high-tension cable pyrocondensation waterproof sealing cap according to claim 1, it is characterised in that：The upper capsule (10) it is upper
Along with trapezoidal the first ladder-shaped sealing ring (15) in section, first ladder-shaped sealing ring are provided between cable body (2)
(15) it is sleeved on cable body (2), the upper edge of the upper capsule (10) is set as bell mouth shape structure.
4. high-tension cable pyrocondensation waterproof sealing cap according to claim 1, it is characterised in that：Under the lower capsule (11)
Along trapezoidal the second ladder-shaped sealing ring (16), second ladder-shaped sealing ring (16) with section is provided between casing (1)
It is sleeved on casing (1), the lower edge of the lower capsule (11) is set as bell mouth shape structure.
5. high-tension cable pyrocondensation waterproof sealing cap according to claim 1, it is characterised in that：The end cap (3) and casing
(1) cushion (17) are provided between.
6. high-tension cable pyrocondensation waterproof sealing cap according to claim 1, it is characterised in that：It is applied on the diaphragm seal (4)
It is covered with silica gel.
7. high-tension cable pyrocondensation waterproof sealing cap according to claim 1, it is characterised in that：Described casing (1) end is set
It is equipped with the waterproof elbow (18) of semicircular arc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715621.6A CN108832585B (en) | 2018-07-03 | 2018-07-03 | High-voltage cable thermal shrinkage waterproof sealing cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715621.6A CN108832585B (en) | 2018-07-03 | 2018-07-03 | High-voltage cable thermal shrinkage waterproof sealing cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108832585A true CN108832585A (en) | 2018-11-16 |
| CN108832585B CN108832585B (en) | 2020-02-18 |
Family
ID=64133578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810715621.6A Active CN108832585B (en) | 2018-07-03 | 2018-07-03 | High-voltage cable thermal shrinkage waterproof sealing cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108832585B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510159A (en) * | 2018-11-23 | 2019-03-22 | 上海晗普新材料科技有限公司 | A kind of transparent pyrocondensation sealing cap |
| CN111106573A (en) * | 2018-10-26 | 2020-05-05 | 苏州中明光电有限公司 | Cable joint insulation waterproof connection method |
| CN112072602A (en) * | 2020-10-10 | 2020-12-11 | 国网湖北省电力有限公司十堰供电公司 | High tension cable protection pipe plugging device |
| CN112510637A (en) * | 2020-11-26 | 2021-03-16 | 国家电网有限公司 | Silicone rubber fireproof sealing cap suitable for circular cable protection pipe |
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| CN2401768Y (en) * | 1999-10-29 | 2000-10-18 | 靳卫新 | Butt clamped expansion water flow stop |
| CN201155649Y (en) * | 2008-02-01 | 2008-11-26 | 于大成 | Universal elastic pipe plugging piece |
| CN202076759U (en) * | 2011-06-09 | 2011-12-14 | 北京华商电力管道有限公司 | Improved elastic pipeline plugging piece |
| EP2369211A3 (en) * | 2010-03-10 | 2013-12-25 | Pflitsch GmbH & Co. KG. | Device for a sealed feedthrough of long moulded parts |
| CN104966913A (en) * | 2015-07-09 | 2015-10-07 | 中国石油天然气集团公司 | Sealing protection device for water immersed cable welded joints |
| CN107634495A (en) * | 2017-09-22 | 2018-01-26 | 平高集团有限公司 | The end seal structure of ultrahigh voltage direct current wall bushing |
| CN207234368U (en) * | 2017-09-22 | 2018-04-13 | 山东电力建设第一工程公司 | A kind of buried cable fire-proof and water-proof sealing device |
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2018
- 2018-07-03 CN CN201810715621.6A patent/CN108832585B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401768Y (en) * | 1999-10-29 | 2000-10-18 | 靳卫新 | Butt clamped expansion water flow stop |
| CN201155649Y (en) * | 2008-02-01 | 2008-11-26 | 于大成 | Universal elastic pipe plugging piece |
| EP2369211A3 (en) * | 2010-03-10 | 2013-12-25 | Pflitsch GmbH & Co. KG. | Device for a sealed feedthrough of long moulded parts |
| CN202076759U (en) * | 2011-06-09 | 2011-12-14 | 北京华商电力管道有限公司 | Improved elastic pipeline plugging piece |
| CN104966913A (en) * | 2015-07-09 | 2015-10-07 | 中国石油天然气集团公司 | Sealing protection device for water immersed cable welded joints |
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| CN207234368U (en) * | 2017-09-22 | 2018-04-13 | 山东电力建设第一工程公司 | A kind of buried cable fire-proof and water-proof sealing device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106573A (en) * | 2018-10-26 | 2020-05-05 | 苏州中明光电有限公司 | Cable joint insulation waterproof connection method |
| CN109510159A (en) * | 2018-11-23 | 2019-03-22 | 上海晗普新材料科技有限公司 | A kind of transparent pyrocondensation sealing cap |
| CN109510159B (en) * | 2018-11-23 | 2024-04-30 | 苏州晗普新材料科技有限公司 | Transparent thermal shrinkage sealing cap |
| CN112072602A (en) * | 2020-10-10 | 2020-12-11 | 国网湖北省电力有限公司十堰供电公司 | High tension cable protection pipe plugging device |
| CN112510637A (en) * | 2020-11-26 | 2021-03-16 | 国家电网有限公司 | Silicone rubber fireproof sealing cap suitable for circular cable protection pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108832585B (en) | 2020-02-18 |
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