CN203939057U - A kind of ventilation well lid for cable shaft - Google Patents
A kind of ventilation well lid for cable shaft Download PDFInfo
- Publication number
- CN203939057U CN203939057U CN201420367459.0U CN201420367459U CN203939057U CN 203939057 U CN203939057 U CN 203939057U CN 201420367459 U CN201420367459 U CN 201420367459U CN 203939057 U CN203939057 U CN 203939057U
- Authority
- CN
- China
- Prior art keywords
- well lid
- cable
- section body
- well
- cable shaft
- 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.)
- Expired - Lifetime
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 2
- 238000009833 condensation Methods 0.000 abstract description 5
- 230000005494 condensation Effects 0.000 abstract description 5
- 239000002352 surface water Substances 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model relates to cable run auxiliary equipment technical field, specifically a kind of ventilation well lid for cable shaft.Ventilate in cable shaft and cable passage poor, air humidity is large, and existing well lid does not possess ventilation and seepage prevention design, causes power equipment in passage because of moist Frequent Troubles.The bearing surface of the utility model Jing Zuoquankou is provided with a circle annular flange flange; The inner side of well lid body is provided with a ring annular groove, and this groove coordinates with the annular flange flange of well seat; Air chimney is communicated with and is formed by vertical section body and tilting section body, and vertical section body lower end and well lid body are connected and fixed.The utility model has the advantages that simple in structure, well lid and walling crib cooperation place are provided with leakage preventing structure, prevent that excess surface water from leaking in cable shaft, well lid is provided with air pipeline, make to carry out circulation of air with the external world in down-hole and cable trench, air humidity in cable trench is down to below safety value, has avoided equipment condensation, frosting, guaranteed the safe operation of circuit.
Description
Technical field
The utility model relates to power industry cable run auxiliary equipment technical field, specifically a kind of ventilation well lid for cable shaft.
Background technology
The pernicious gases such as cable passage, equipment Foundations locate below ground level, and ventilate in cable shaft and passage poor, and air humidity is larger, foul smell are more, overhaul of the equipments or while safeguarding staff be difficult to long-time underground work.The well lid that cable shaft is used is how concordant with ground, excess surface water is infiltrated in well by the air vent of well lid, further strengthened the humidity of channel interior, cable, transmission facility etc. operate in wet environment for a long time, to the equipment such as ring main unit on ditch inner cable equipment and ditch, all there is great potential safety hazard.The condensations such as cable accessory, winter temperature is lower, equipment surface frosting, greatly reduce the class of insulation of insulation materials, the method of taking is at present to do moistureproof shutoff for equipment, but effect is general, the Frequent Troubles that causes the power equipments such as cable, cable accessory and ring main unit to damage every year because of condensation phenomenon, cause large-area power-cuts, affect transmission line of electricity safe operation.
Summary of the invention
The purpose of this utility model is to provide a kind of ventilation well lid for cable shaft, simple in structure, installs air chimney on well lid additional, and is provided with seepage-proof structure between well lid and well seat, has solved the problem of moist condensation in current cable shaft and passage.
The technical solution of the utility model: comprise well lid body, air chimney and well seat; The lower end of well seat is provided with pedestal eaves board, and the upper end circle mouthful of well seat is the bearing surface of well lid, and bearing surface is provided with a circle annular flange flange;
The inner side of well lid body is provided with a ring annular groove, and annular groove coordinates with the annular flange flange of well seat ring mouth top edge; Air chimney is bending, by vertical section body and tilting section body, is communicated with and is formed, and well lid body has through hole, and the vertical section body lower end of air chimney is connected to the through hole edge of well lid body, and the upper end of vertical section body is connected with the high-end of tilting section body.
Further, the tilting section body opening part of described air chimney is equipped with separation net.
Further, in the annular groove of described well lid body, antiseep pad circle is housed.
The utility model has the advantages that: simple in structure, well lid and walling crib cooperation place are provided with cannelure and the flange of percolation-proof, prevent that excess surface water from leaking in cable shaft, well lid is provided with air pipeline, make the interior gas of down-hole and cable trench and the external world carry out circulation of air, air humidity in cable trench is down to below safety value, has effectively avoided equipment condensation, frosting, guaranteed the safe operation of circuit.
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is elaborated.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is use state diagram of the present utility model.
The specific embodiment
In figure: 1, well lid body, 2, vertical section body, 3, tilting section body, 4, separation net, 5, annular groove, 6, well seat, 7, annular flange flange, 8, pedestal eaves board, 9, seepage-proofing gasket.
Embodiment
As can be seen from Figure 1, the utility model comprises well lid body 1, air chimney and well seat 6; The lower end of well seat 6 is provided with pedestal eaves board 8, for fixing well seat; The upper end circle mouthful of well seat 6 is the bearing surface of well lid, and bearing surface is provided with a circle annular flange flange 7, and this annular flange flange height can be set according to local amount of precipitation situation, and the present embodiment flange height is chosen as 2cm;
The inner surface of well lid body 1 (being well lid soffit) is provided with a ring annular groove 5, and annular groove 5 is identical with annular flange flange 7 diameters of well seat; After well lid covers, this annular groove 5 coordinates with the annular flange flange 7 of well seat 6 circle mouthful top edges; For avoiding excess surface water to flow in well along well seat and well lid mating face seepage, the seepage-proofing gasket 9 of quality of rubber materials is housed in annular groove 5.
Air chimney is communicated with L-shaped bending-like structure by vertical section body 2 and tilting section body 3, well lid body 1 middle part have a through hole, vertical section body 2 lower ends of air chimney are connected to the through hole edge of well lid body, the upper end of vertical section body 2 is communicated with the high-end of tilting section body 3, the low side of tilting section body 3 is ventilation opening, avoids rainwater flow ventilation pipe.Because cable shaft is located on vacant lot more, away from public way, so ventilating structure and the part above ground level of well lid top can not impact pedestrian or vehicle pass-through.
The tilting section body 3 low side opening parts (being ventilation opening) of described air chimney are equipped with separation net 4, can prevent that toy or rubbish, foreign material etc. from entering pipeline.
For guaranteeing the ventilation effect in cable passage, should ventilation well lid be all installed at uptake and the place, lower air port of cable passage, utilize cross-ventilation to make gas natural circulation in passage.During 6 installation of well seat, the arranging manhole cover face that should make Jing Zuoquankou and ground baseline flat or bearing surface at a stalemate is baseline above Ground, sees Fig. 2, to guarantee that the ponding on rainy weather ground can not flow directly in well.
Finally should be noted that: above embodiment is used for illustrating that the technical solution of the utility model is not intended to limit; those skilled in the art modifies to embodiment or part technical characterictic is equal to replacement; and do not depart from the essence of technical solutions of the utility model, within all should being encompassed in the utility model scope required for protection.
Claims (3)
1. for a ventilation well lid for cable shaft, it is characterized in that: comprise well lid body (1), air chimney and well seat (6); The lower end of well seat (6) is provided with pedestal eaves board (8), and the upper end circle mouthful of well seat (6) is the bearing surface of well lid, and bearing surface is provided with a circle annular flange flange (7);
The inner side of well lid body (1) is provided with a ring annular groove (5), and annular groove (5) coordinates with the annular flange flange (7) of well seat (6) circle mouthful top edge; Air chimney is bending, by vertical section body (2) and tilting section body (3), be communicated with and form, well lid body (1) has through hole, vertical section body (2) lower end of air chimney is connected to the through hole edge of well lid body, the high-end connection of the upper end of vertical section body (2) and tilting section body (3).
2. a kind of ventilation well lid for cable shaft according to claim 1, is characterized in that: tilting section body (3) opening part of described air chimney is equipped with separation net (4).
3. a kind of ventilation well lid for cable shaft according to claim 1, is characterized in that: in the annular groove (5) of described well lid body (1), seepage-proofing gasket (9) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420367459.0U CN203939057U (en) | 2014-07-04 | 2014-07-04 | A kind of ventilation well lid for cable shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420367459.0U CN203939057U (en) | 2014-07-04 | 2014-07-04 | A kind of ventilation well lid for cable shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939057U true CN203939057U (en) | 2014-11-12 |
Family
ID=51858384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420367459.0U Expired - Lifetime CN203939057U (en) | 2014-07-04 | 2014-07-04 | A kind of ventilation well lid for cable shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107794949A (en) * | 2017-09-21 | 2018-03-13 | 国网宁夏电力公司吴忠供电公司 | A kind of ventilation dewetting well cover of cable well |
-
2014
- 2014-07-04 CN CN201420367459.0U patent/CN203939057U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107794949A (en) * | 2017-09-21 | 2018-03-13 | 国网宁夏电力公司吴忠供电公司 | A kind of ventilation dewetting well cover of cable well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141112 |
|
| CX01 | Expiry of patent term |