CN208441130U - A kind of cable duct - Google Patents
A kind of cable duct Download PDFInfo
- Publication number
- CN208441130U CN208441130U CN201821014791.3U CN201821014791U CN208441130U CN 208441130 U CN208441130 U CN 208441130U CN 201821014791 U CN201821014791 U CN 201821014791U CN 208441130 U CN208441130 U CN 208441130U
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- CN
- China
- Prior art keywords
- trench
- cable
- cable duct
- drain bar
- duct according
- 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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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model relates to a kind of cable duct, including bottom of trench and furrow bank, the part of bottom of trench is to pour the drain bar built up by permeable material, and drain bar extends to sump.The end of drain bar extends to the outside of furrow bank, and sump is set to the outside of furrow bank.Bottom of trench is spaced several drain bars of setting according to preset spacing distance.The utility model can in time exclude ponding, and water-less environment promotes the safety operation level of cable to eliminate the security risk of cable in guarantee ditch, carry out routine work convenient for operations staff.
Description
Technical field
The utility model relates to a kind of cable ducts for cabling.
Background technique
Cable duct for cabling is embedded in underground, and concreting is used to form, so that constituting section is rectangle
Hollow tubular, as shown in Fig. 1.The bottom of trench of cable duct is made of concrete completely, as shown in Fig. 2, can not be in discharge gutter
Ponding.
There is following harm after cable duct water inlet:
(1) after cable shaft (ditch) water inlet, because draining is difficult, cable tour personnel, which can not go into the well, normally to be maked an inspection tour, and is influenced
Quality is maked an inspection tour to cable, causes the running potential faults of cable that cannot find in time, not only influences the normal fortune of cable in this way
Row, and have and make the widened danger of cable fault, easily generation end fracture phenomena, and in replacing end or doing indirectly
Head, not only power off time is long, influences normal power supply, also cable run can be made to increase new fault point.
(2) after cable shaft (ditch) water inlet, moisture is generated, such as cable because crack, electricity occur for construction or product quality problem
When entering steam in cable, cable insulation has been not only broken up, cable water inlet has been also resulted in and cable is caused to burst.
(3) when just having started two-channel filter banks, high pressure coupling box is placed in cable shaft, high pressure coupling box long period of soaking is caused
In water, as a result, influencing the normal operation of equipment, occurrence of equipment corrosion, easily initiation failure.
(4) cable in laying, soak in water sometimes, and water is made to enter cable by the end wrapped with plastic paper.It is leading
When drawing with poling, it some times happens that oversheath fracture phenomena makes cable infilter water.
(5) because cable shaft (ditch) has water, after cabling, manufacturing cable head is such as carried out not in time, makes not sealed place
The cableport of reason is chronically exposed in air, or even under water, and steam is made largely to enter cable, and cable is caused to burn or hit
It wears.
(6) (including terminals and transition joint) when manufacturing cable head, due to the general idea of producer, cable socket is sometimes
It can slide into the cable shaft of ponding, damage cable.
(7) in cable operation, when the failures such as transition joint breakdown occur, the ponding in cable shaft will enter along notch
Cable.Cable water inlet can also occur for the cable failure caused by construction site, external force or breakdown.
(8) water in cable duct is mostly rain sewage, carries corrosivity, can corrode the external protection of cable on long terms.
Therefore, cable can gradually form water tree type and climb electricity, or even breakdown once water inlet or aqueous vapor enter in cable,
To cause irreversible damage.
Cable duct internal water accumulation is eliminated by the way of periodically drawing water always at present, but effect is not apparent.
Summary of the invention
The purpose of this utility model is the cable duct for having good drainage effect, avoiding internal ponding.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
A kind of cable duct, including bottom of trench and furrow bank, the part of the bottom of trench are to pour the drain bar built up by permeable material,
The drain bar extends to sump.
Preferably, the end of the drain bar extends to the outside of the furrow bank, and the sump is set to the furrow bank
Outside.
Preferably, the bottom of trench is spaced several drain bars of setting according to preset spacing distance.
Preferably, length direction of the length direction of the drain bar perpendicular to the bottom of trench.
Preferably, the drain bar is internally provided with permeable reinforcer.
Preferably, the reinforcer is the grid that reinforcing bar is constituted.
Preferably, the cable duct further includes bed course, and the bottom of trench is set on the bed course.
Preferably, the bottom of trench has to the inclined upper surface in drain bar position.
Preferably, the upper surface of the bottom of trench is provided with water guide item.
Since above-mentioned technical proposal is used, the utility model has the advantage that the utility model compared with prior art
Ponding can be excluded in time, water-less environment promotes the safe operation of cable to eliminate the security risk of cable in guarantee ditch
Level carries out routine work convenient for operations staff.
Detailed description of the invention
Attached drawing 1 is the schematic cross-section of existing cable duct.
Attached drawing 2 is the bottom of trench schematic top plan view of existing cable duct.
Attached drawing 3 is the schematic cross-section of the cable duct of the utility model.
Attached drawing 4 is the bottom of trench schematic top plan view of the cable duct of the utility model.
In the figures above: 1, cable duct；2, bottom of trench；3, furrow bank；4, Gou Ding；5, drain bar；6, sump；7, bed course.
Specific embodiment
Embodiment shown in reference to the accompanying drawing is further described the utility model.
Embodiment one: a kind of cable duct 1, section are rectangle, therefore it includes 2, two furrow banks 3 of bottom of trench and ditch top 4, such as attached
Shown in Fig. 3.The part of bottom of trench 2 is that the drain bar 5 built up is poured by permeable material, and drain bar 5 extends to sump 6.To work as
When having ponding in ditch, it can be guided in sump 6 by drain bar 5, prevent ditch internal water accumulation, to ensure cable safety.And
The part bottom of trench 2 of non-drain bar 5, then still poured using normal concrete.The other parts of drain bar 5 and cable duct 1 are disposable
Pour completion, proof strength.
Since the length of cable duct 1 is often longer, if being spaced setting according to preset spacing distance in bottom of trench 2
Dry drain bar 5, these drain bars 5 are distributed along the length direction of cable duct 1.Usually every 500 meters of one drain bars 5 of setting.
Drain bar 5 has length direction, length direction of the length direction perpendicular to bottom of trench 2.And the length of drain bar 5
The both ends in direction extend respectively to the outside of two furrow banks 3, and sump 6 is also disposed on the outside of furrow bank 3, as shown in Fig. 4.
Intensity in order to ensure drain bar 5 is reliable, permeable reinforcer can be arranged inside drain bar 5, such as reinforcing bar structure
At grid.
In order to enhance drainage effect, bottom of trench 2 has to the inclined upper surface in 5 position of drain bar, i.e., for commonly mixing
The part that solidifying soil pours forms inclined-plane.Water guide item can also be set in the upper surface of bottom of trench 2 to promote water flow to flow to drain bar 5
It is dynamic.
Above-mentioned cable duct 1 further includes bed course 7, and bottom of trench 2 is set on bed course 7, and the area of usual bed course 7 is slightly larger than bottom of trench 2
Area.
The permeable material used in above scheme can be permeable concrete, existing to be poured the infiltration to be formed
Terrace usually possesses the hole of 15%-25%, can make seepage velocity reach 31-52 liter/square m/h, and its bearing capacity energy
Enough reach required standard.If its gap blocks, can be solved by way of high-pressure washing.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (9)
1. a kind of cable duct, including bottom of trench and furrow bank, it is characterised in that: the part of the bottom of trench is to be poured to build up by permeable material
Drain bar, the drain bar extends to sump.
2. a kind of cable duct according to claim 1, it is characterised in that: the end of the drain bar extends to the furrow bank
Outside, the sump is set to the outside of the furrow bank.
3. a kind of cable duct according to claim 1, it is characterised in that: the bottom of trench according to preset spacing distance and
Every several drain bars of setting.
4. a kind of cable duct according to claim 1, it is characterised in that: the length direction of the drain bar is perpendicular to described
The length direction of bottom of trench.
5. a kind of cable duct according to claim 1, it is characterised in that: the drain bar is internally provided with permeable reinforcement
Part.
6. a kind of cable duct according to claim 5, it is characterised in that: the reinforcer is the grid that reinforcing bar is constituted.
7. a kind of cable duct according to claim 1, it is characterised in that: the cable duct further includes bed course, the bottom of trench
It is set on the bed course.
8. a kind of cable duct according to claim 1, it is characterised in that: the bottom of trench has in place to the drain bar institute
Set inclined upper surface.
9. a kind of cable duct according to claim 8, it is characterised in that: the upper surface of the bottom of trench is provided with water guide item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821014791.3U CN208441130U (en) | 2018-06-29 | 2018-06-29 | A kind of cable duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821014791.3U CN208441130U (en) | 2018-06-29 | 2018-06-29 | A kind of cable duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208441130U true CN208441130U (en) | 2019-01-29 |
Family
ID=65087908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821014791.3U Active CN208441130U (en) | 2018-06-29 | 2018-06-29 | A kind of cable duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208441130U (en) |
-
2018
- 2018-06-29 CN CN201821014791.3U patent/CN208441130U/en active Active
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