CN101651319A - Sealing device of cable pipeline - Google Patents
Sealing device of cable pipeline Download PDFInfo
- Publication number
- CN101651319A CN101651319A CN200910101726A CN200910101726A CN101651319A CN 101651319 A CN101651319 A CN 101651319A CN 200910101726 A CN200910101726 A CN 200910101726A CN 200910101726 A CN200910101726 A CN 200910101726A CN 101651319 A CN101651319 A CN 101651319A
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- Prior art keywords
- platen
- inner ring
- sealing device
- outer ring
- cable
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Abstract
The invention provides a sealing device of a cable pipeline with a simple passing structure, belonging to the field of electric systems and comprising a cable wire. The cable wire is sleeved into thecable pipeline and is externally sleeved with a ring-shaped inner ring, the periphery of the inner ring is provided with a homocentric ring-shaped outer ring, and the outer diameter of the outer ringis connected with the inner diameter of the cable pipeline; and an extrusion device is arranged between the inner ring and the outer ring and can internally and externally extrude the inner ring and the outer ring so that sealing is generated among the extrusion device, the inner ring and the outer ring. Compared with the prior art, the sealing device of the cable pipeline has low cost, easy installation and convenient disassembly.
Description
Technical field
The present invention relates to field of power, specifically, is a kind of sealing device of cable duct.
Background technology
During at present national grid is built because of the needs of urban construction, the electrical network passage is changed into underground by the high-altitude, adopt the form of power cable laying more and more, the application of power cable also more and more widely, from several years ago 0.4 kilovolt, 10 kilovolts, 35 kilovolts, 110 kilovolts by now, 220 kilovolts, the cable more than 500 kilovolts have all been used very at large.These cables arrive each step-down substation, middle switching station by pre-buried municipal pipeline, until Terminal Substation; At several kilometers even in tens kilometers the pipe network, can reserve a maintenance well every 30-50 rice, lead to one-end substation again; And increasing skyscraper is in order to utilize the space in the urban construction, and a lot of supporting power distribution rooms also can be built up in subterranean layer.
Now a lot of cities, particularly in the coastal area, level of ground water is higher, add that rainwater weather is on the high side every year, the ubiquity rainwater penetrates into one-end substation along the cable pore, causes the equipment impaired situation of making moist, and the mud that contains in the municipal sewage, also pouring into the cable pore easily and cause cable to extract out, is at most to adopt cement, anti-chamotte or the leak stopping king carries out shutoff at present.These shutoff mode can only be blocked the intrusion of outside silt, particle etc., but be difficult to take precautions against for the phenomenons such as infiltration that cause owing to hydraulic pressure, excess surface water once just taking place by the transformer station under the cable duct inflow place, caused the covered situation of transformer station at last in reality.
Present stage uses another defective of shutoff cable pore technology to be to change being difficult for of cable in the future.Chisel when originally being used for sealing the cement of pore when needing the extending and replacing cable, cause the damage of cable easily; And after the silt behind municipal sewage or the rainwater pours into the cable pore, can't twitch cable at all and cause cable passage to be scrapped, can't second use.Though some imported material can be used as substituting of shutoff pore with wasting one's talent on a petty job at present, the costliness of these import prices makes the input cost of electrical network be difficult to bear.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned deficiency of the prior art, a kind of sealing device of cable duct of simple current structure is provided.
To achieve these goals, technical scheme of the present invention is:
A kind of sealing device of cable duct comprises the cable that is inserted in the cable duct, and the inner ring of an annular is being overlapped in the outside of described cable; The periphery of described inner ring also has a concentric annular outer ring, and the external diameter of this outer ring and the internal diameter of described cable duct join; Be provided with a pressurizing unit between described inner ring and described outer ring, described pressurizing unit can make and produce sealing between the three to above-mentioned inner ring of inside and outside extruding and outer ring.
As a further improvement on the present invention, described pressurizing unit comprises platen and following platen; Described bottom surface of going up platen and following platen is arc surfaced, and intersects with described inner ring and outer ring; Being connected with screw rod between platen and the following platen on described fixes.
As a further improvement on the present invention, the described section of going up platen and following platen is the disc of interior sky, to save materials; The reinforcement that is provided with in the disk more than at least one fixes.
As a further improvement on the present invention, the described platen of going up is partly synthesized convenient dismounting in the future by two semicircles cutting open from the centre with following platen.
As a further improvement on the present invention, the end of described screw rod is provided with seal washer, to strengthen sealing.
As a further improvement on the present invention, an end of described screw rod is fixed on the body of described platen down, to reduce sealing part; The other end was movably connected with nut after wearing then described excessively last platen again.
As a further improvement on the present invention, have the inner ring joint close on the described inner ring, be convenient to the oneself of inner ring after being squeezed and adjust and adorn, dismantle.
As a further improvement on the present invention, described inner ring joint close departs from the center of circle of described inner ring, and the sealing effectiveness after being squeezed is better than over against the joint close of center of circle time institute opening.
As a further improvement on the present invention, have the outer ring joint close on the described outer ring, be convenient to the oneself of outer ring after being squeezed and adjust and adorn, dismantle.
As a further improvement on the present invention, described outer ring joint close departs from the center of circle of described outer ring, and the sealing effectiveness after being squeezed is better than over against the joint close of center of circle time institute opening.
Inner ring in the sealing device of the present invention, outer loop material all adopt high-quality rubber, and its elasticity is moderate, the good sealing effect after being squeezed; Compared with prior art, cable duct sealing device of the present invention, it is low to have a cost, install simple, the advantage of convenient disassembly.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention.
Fig. 2 is the vertical view of the last platen among Fig. 1.
Fig. 3 is the structural representation of the outer ring among Fig. 1.
Fig. 4 is the structural representation of the inner ring among Fig. 1.
Among the figure: platen on 1 inner ring, 2 outer rings, 3 cables, 4,5 cable ducts, 6 nuts, 7 screw rods, 8 times platens, 9, reinforcement, 10 through holes, 11 inner ring joint closes, 12 outer ring joint closes.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
As shown in Figure 1, the sealing device of cable duct of the present invention, cable 3 pass cable duct 5 (diameter of cable duct 5 is generally about 150cm); At mouth of pipe position, the end of the cable 3 that is promptly exposed, the outside suit the inner ring 1 of an annular, and the periphery of inner ring 1 also has a concentric annular outer ring 2 to be arranged in inside pipe wall, and promptly the external diameter of outer ring 2 is slightly less than the internal diameter of cable duct 5 of living in; Between inner ring 1 and outer ring 2, be provided with a pressurizing unit, pressurizing unit comprises platen 4 and following platen 8, and the bottom surface is arc surfaced, intersects with inner ring 1 and outer ring 2, can make and produce the tightly effect of sealing between the three respectively to inside and outside extruding above-mentioned inner ring 1 and outer ring 2; On above-mentioned between platen 4 and the following platen 8, also be connected with 4 equally distributed screw rods 7 as securing member; One end of screw rod 7 can fixedly be made of one with following platen 8 in advance, with reduce may sealing leak link, after the other end then passes through hole 10 on the platen 4, be inserted in seal washer and cooperate with nut 6 again and tighten.
It is the shape of interior empty disk that the shape of upper and lower platen 4,8 is a kind of section that two semicircular body cutting open from the centre synthesize, and is convenient to installation and removal.Shown in Figure 2 is the structural representation of last platen 4.Among the figure, 4 reinforcements 9 that distributing symmetrically in the disk of sky in this are reinforced disk body in order to conduct; Also have 4 through holes 10 in addition in the disk symmetrically, be convenient to the connection of passing of 4 corresponding screw rods 7.
As shown in Figure 3, have outer ring joint close 12 on the outer ring 2, be convenient to the oneself of outer ring 2 when being squeezed and adjust, and dress, dismantlement work; Outer ring joint close 12 departs from the home position of outer ring 2, and therefore the sealing effectiveness after being squeezed can be better than over against the position of center of circle time institute opening.
As shown in Figure 4, inner ring 1 also has inner ring joint close 11, and be convenient to the oneself of inner ring 1 when being squeezed and adjust, and conveniently dress, dismounting; Inner ring joint close 11 departs from the home position of inner ring 1, and therefore the sealing effectiveness after being squeezed can be better than over against the position of center of circle time institute opening.
At last, it should be noted that above what enumerate only is specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, a lot of distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate all should be thought protection scope of the present invention.
Claims (10)
1. the sealing device of a cable duct comprises the cable (3) that is inserted in the cable duct (5), it is characterized in that, the inner ring (1) of an annular is being overlapped in the outside of described cable (3); The periphery of described inner ring (1) also has a concentric annular outer ring (2), and the internal diameter of the external diameter of this outer ring (2) and described cable duct (5) joins; Be provided with a pressurizing unit between described inner ring (1) and described outer ring (2), described pressurizing unit can make and produce sealing between the three to the above-mentioned inner ring of inside and outside extruding (1) and outer ring (2).
2. the sealing device of cable duct according to claim 1 is characterized in that, described pressurizing unit comprises platen (4) and following platen (8); Described bottom surface of going up platen (4) and following platen (8) is arc surfaced, and intersects with described inner ring (1) and outer ring (2); It is fixing to be connected with screw rod (7) on described between platen (4) and the following platen (8).
3. the sealing device of cable duct according to claim 2 is characterized in that, the described section of going up platen (4) and following platen (8) is the disc of interior sky, and the reinforcement (9) that is provided with in the disk more than at least one fixes.
4. according to the sealing device of claim 2 or 3 described cable ducts, it is characterized in that described upward platen (4) and following platen (8) are partly synthesized by two semicircles cutting open from the centre.
5. the sealing device of cable duct according to claim 2 is characterized in that, the end of described screw rod (7) is provided with seal washer.
6. according to the sealing device of claim 2 or 5 described cable ducts, it is characterized in that an end of described screw rod (7) is fixed on the body of described platen (8) down, the other end passes described platen (4) back of going up and is movably connected with nut (6).
7. the sealing device of cable duct according to claim 1 is characterized in that, has inner ring joint close (11) on the described inner ring (1).
8. the sealing device of cable duct according to claim 7 is characterized in that, described inner ring joint close (11) departs from the center of circle of described inner ring (1).
9. the sealing device of cable duct according to claim 1 is characterized in that, has outer ring joint close (12) on described outer ring (2).
10. the sealing device of cable duct according to claim 9 is characterized in that, described outer ring joint close (12) departs from the center of circle of described outer ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910101726A CN101651319A (en) | 2009-08-13 | 2009-08-13 | Sealing device of cable pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910101726A CN101651319A (en) | 2009-08-13 | 2009-08-13 | Sealing device of cable pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101651319A true CN101651319A (en) | 2010-02-17 |
Family
ID=41673478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910101726A Pending CN101651319A (en) | 2009-08-13 | 2009-08-13 | Sealing device of cable pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101651319A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709863A (en) * | 2012-04-10 | 2012-10-03 | 山西省电力公司太原供电分公司 | Sealer for tip of cable through pipe |
| CN106684804A (en) * | 2017-01-10 | 2017-05-17 | 湖南空天科技工程有限公司 | Deformable orifice plugging apparatus |
| CN108306232A (en) * | 2017-12-20 | 2018-07-20 | 国网山东省电力公司聊城供电公司 | A kind of mechanical fasteners formula cable waterproof clutch and its application method |
-
2009
- 2009-08-13 CN CN200910101726A patent/CN101651319A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709863A (en) * | 2012-04-10 | 2012-10-03 | 山西省电力公司太原供电分公司 | Sealer for tip of cable through pipe |
| CN106684804A (en) * | 2017-01-10 | 2017-05-17 | 湖南空天科技工程有限公司 | Deformable orifice plugging apparatus |
| CN108306232A (en) * | 2017-12-20 | 2018-07-20 | 国网山东省电力公司聊城供电公司 | A kind of mechanical fasteners formula cable waterproof clutch and its application method |
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| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Haiping Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Addressee: Li Haiping Document name: Notification of Publication and of Entering the Substantive Examination Stage of the Application for Invention |
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| DD01 | Delivery of document by public notice |
Addressee: Li Haiping Document name: the First Notification of an Office Action |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100217 |