CN203707718U - Cable conduit - Google Patents
Cable conduit Download PDFInfo
- Publication number
- CN203707718U CN203707718U CN201420107641.2U CN201420107641U CN203707718U CN 203707718 U CN203707718 U CN 203707718U CN 201420107641 U CN201420107641 U CN 201420107641U CN 203707718 U CN203707718 U CN 203707718U
- Authority
- CN
- China
- Prior art keywords
- wall corrugated
- expansion joint
- connecting pipes
- tube connector
- pipes
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 12
- 239000010935 stainless steel Substances 0.000 claims abstract description 12
- 239000002689 soil Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010008 shearing Methods 0.000 description 6
- 230000001086 cytosolic effect Effects 0.000 description 3
- 230000035772 mutation Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011518 fibre cement Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model discloses a cable conduit. Thecable conduit comprises at least two single-wall corrugated pipes, at least one expansion joint and sealing rings, wherein every two adjacent single-wall corrugated pipes are connected through each expansion joint; each expansion joint comprises two connecting pipes and a communicatingcorrugated pipe arranged between the two connecting pipes, each connecting pipe is connected with one single-wall corrugated pipe, and positioning bosses extending in axis directions of the connecting pipes are arranged in positions where the inside of the connecting pipes is connected with each communicatingcorrugated pipe; stainless steel hoops are arranged on outer walls of the connecting pipes, and outer annular grooves for fixing the stainless steel hoops are formed in the outer walls of the connecting pipes; the sealing rings are fixed in grooves in outer surfaces of thesingle-wall corrugated pipes to seal inner walls of the connecting pipes. Thecable conduit has the advantages as follows: theshear deformation capability of a high-voltage power cable against soft soil foundation settlement and geologicalmutationsections is improved by the at least one expansion joint, and the structural safety of the cable conduit is guaranteed, so that the service life of the cable is prolonged, and normal operation of electric power facilities is guaranteed.
Description
Technical field
The utility model relates to a kind of cable duct tube.
Background technology
The cable duct tube using is at present divided into two kinds, one is that rigid cable conduit is as compound glass steel conduit, plastic-coated steel, fibre-cement pipe, CM pipe etc., it allows differential settlement in 30mm left and right, and bellmouth amount of deflection, 2.5 ° of left and right, is applicable to the relatively stable cable passage of ground.Another kind is that flexible cable conduit is as carbon element bellows, chliorinated polyvinyl chloride or Vybak double-wall corrugated pipe, Modified polypropylene single-wall corrugated pipe etc., it allows differential settlement in 200mm left and right, be applicable to soft soil foundation cable passage, but the shearing deformation ability in its cytoplasmic mutation location, opposing ground is lower.If cable duct tube wrecks, will certainly have a strong impact on the fail safe of cable, cause unnecessary loss.
Utility model content
The purpose of this utility model is to provide a kind of cable duct tube, can effectively solve the low problem of the anti-shearing deformability of existing flexible cable conduit.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of cable duct tube, comprise at least two single-wall corrugated pipes with by adjacent two expansion joints that single-wall corrugated pipe is connected, the tube connector that described expansion joint comprises two respectively and single-wall corrugated pipe joins and be arranged on two diaphragm for passageway between tube connector, described tube connector is inner is provided with diaphragm for passageway joint the positioning boss extending to tube connector axis direction;
Described tube connector outer wall is provided with stainless steel anchor ear, has the outer groove of annular of fixing stainless steel anchor ear on described tube connector outer wall;
Also comprise and be fixed on the sealing ring that forms sealing in single-wall corrugated pipe outer surface groove with tube connector inwall.
Preferably, all have an annular inner groovy coordinating with sealing ring on described each tube connector madial wall, the air line distance of described annular inner groovy and the outer groove distance positioning boss of annular equates; The location that annular inner groovy can better be realized sealing ring, it is tightr that annular inner groovy can make sealing ring contact with annular inner groovy when equating anchor ear banding with the air line distance of the outer groove distance positioning boss of annular again, has better waterproof effect.
Preferably, the bottom of described annular inner groovy is waveform; The contact area that reduces annular inner groovy bottom and anchor ear, makes expansion joint can produce larger distortion, thereby single-wall corrugated pipe and expansion joint can more firmly be linked together.
Compared with prior art, the utility model has the advantages that: the shearing deformation ability that has improved high voltage power cable opposing soft soil base sedimentation and cytoplasmic mutation location, ground by expansion joint is set between two single-wall corrugated pipes, can tackle cable passage significantly differential settlement produce time cable duct tube deformation even transition, guarantee the structural safety of cable duct tube, thereby improve the useful life of cable, guarantee the normal operation of electric power facility; When can making single-wall corrugated pipe be connected with expansion joint, positioning boss can accurately locate, prevent that two single-wall corrugated pipes from inserting expansion joints and cross dark and lose anti-shearing deformability, utilize stainless steel anchor ear to pinch tight expansion joint, make expansion joint that certain deformation energy occur better to fix the relative position of single-wall corrugated pipe and expansion joint, be not subjected to displacement, utilize sealing ring to snap between single-wall corrugated pipe external waviness and expansion joint and form good sealing effectiveness, anti-sealing enters in pipe.
Accompanying drawing explanation
Fig. 1 is the structural representation of expansion joint in a kind of cable duct tube of the utility model;
Fig. 2 is the structural representation of a kind of cable duct tube of the utility model.
Embodiment
Consult the embodiment that Fig. 1, Fig. 2 are a kind of cable duct tube of the utility model, a kind of cable duct tube, comprise at least two single-wall corrugated pipes 1 and the expansion joint 2 that adjacent two single-wall corrugated pipes 1 are connected, the tube connector 3 that described expansion joint 2 comprises two respectively and single-wall corrugated pipe 1 joins and be arranged on two diaphragm for passageway 4 between tube connector 3, described tube connector 3 is inner is provided with diaphragm for passageway 4 joints the positioning boss 5 extending to tube connector 3 axis directions;
Described tube connector 3 outer walls are provided with stainless steel anchor ear 6, have the outer groove 7 of annular of fixing stainless steel anchor ear 6 on described tube connector 3 outer walls;
Also comprise and be fixed on the sealing ring 8 that forms sealing in single-wall corrugated pipe 1 outer surface groove with tube connector 3 inwalls.
On described each tube connector 3 madial walls, all have an annular inner groovy 9 coordinating with sealing ring 8, described annular inner groovy 9 and the outer groove 7 of annular are equal apart from the air line distance of positioning boss 5, and the bottom of described annular groove is waveform.
First sealing ring 8 is enclosed within on single-wall corrugated pipe 1, estimate the position of sealing ring 8 on single-wall corrugated pipe 1, insert at single-wall corrugated pipe 1 after the tube connector 3 of expansion joint 2, can make sealing ring 8 just in time be positioned at annular inner groovy 9, stainless steel anchor ear 6 snaps in the outer groove 7 of annular, then tightening stainless steel anchor ear 6, single-wall corrugated pipe 1 and expansion joint 2 are being fixed.By being set between two single-wall corrugated pipes 1, expansion joint 2 improves the shearing deformation ability in high voltage power cable opposing soft soil base sedimentation and cytoplasmic mutation location, ground, can tackle cable passage significantly differential settlement produce time cable duct tube deformation even transition, guarantee the structural safety of cable duct tube, thereby improve the useful life of cable, guarantee the normal operation of electric power facility; When can making single-wall corrugated pipe 1 be connected with expansion joint 2, positioning boss 5 can accurately locate, prevent that two single-wall corrugated pipes 1 from inserting expansion joint 2 and excessively deeply losing anti-shearing deformability, utilize 6 pinches of tight expansion joints 2 of stainless steel anchor ear, make expansion joint 2 that certain deformation energy occur better to fix the relative position of single-wall corrugated pipe 1 and expansion joint 2, be not subjected to displacement, utilize sealing ring 8 to snap between single-wall corrugated pipe 1 external waviness and expansion joint 2 and form good sealing effectiveness, anti-sealing enters in pipe.
The foregoing is only specific embodiment of the utility model, but technical characterictic of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification are all encompassed among the scope of the claims of the present utility model.
Claims (3)
1. a cable duct tube, it is characterized in that: comprise at least two single-wall corrugated pipes (1) and the expansion joint (2) that adjacent two single-wall corrugated pipes (1) are connected, the tube connector (3) that described expansion joint (2) comprises two respectively and a single-wall corrugated pipe (1) joins and be arranged on the diaphragm for passageway (4) between two tube connectors (3), described tube connector (3) is inner is provided with diaphragm for passageway (4) joint the positioning boss (5) extending to tube connector (3) axis direction;
Described tube connector (3) outer wall is provided with stainless steel anchor ear (6), has the outer groove (7) of annular of fixing stainless steel anchor ear (6) on described tube connector (3) outer wall;
Also comprise and be fixed on the sealing ring (8) that forms sealing in single-wall corrugated pipe (1) outer surface groove with tube connector (3) inwall.
2. a kind of cable duct tube as claimed in claim 1, it is characterized in that: on described each tube connector (3) madial wall, all have an annular inner groovy (9) coordinating with sealing ring (8), described annular inner groovy (9) and the outer groove of annular (7) equate apart from the air line distance of positioning boss (5).
3. a kind of cable duct tube as claimed in claim 1 or 2, is characterized in that: the bottom of the outer groove (7) of described annular is waveform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420107641.2U CN203707718U (en) | 2014-03-11 | 2014-03-11 | Cable conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420107641.2U CN203707718U (en) | 2014-03-11 | 2014-03-11 | Cable conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203707718U true CN203707718U (en) | 2014-07-09 |
Family
ID=51058100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420107641.2U Expired - Lifetime CN203707718U (en) | 2014-03-11 | 2014-03-11 | Cable conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203707718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928898A (en) * | 2014-03-11 | 2014-07-16 | 国家电网公司 | Cable guide |
-
2014
- 2014-03-11 CN CN201420107641.2U patent/CN203707718U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928898A (en) * | 2014-03-11 | 2014-07-16 | 国家电网公司 | Cable guide |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |