CN112290444A - Underground cable overhauls draw gear - Google Patents
Underground cable overhauls draw gear Download PDFInfo
- Publication number
- CN112290444A CN112290444A CN202011049790.4A CN202011049790A CN112290444A CN 112290444 A CN112290444 A CN 112290444A CN 202011049790 A CN202011049790 A CN 202011049790A CN 112290444 A CN112290444 A CN 112290444A
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- China
- Prior art keywords
- guide rail
- hinged
- pipe gallery
- underground
- underground cable
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- 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.)
- Pending
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 230000005484 gravity Effects 0.000 claims description 14
- 238000007689 inspection Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
-
- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
-
- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/083—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using lines, e.g. needles, rods or tapes
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention provides an underground cable maintenance traction device, which comprises two sections of guide rails arranged between adjacent maintenance wells, wherein the middle parts of the two sections of guide rails are hinged, the two ends of each guide rail are hinged with suspenders, the suspenders are hinged and hung on the inner top wall of an underground pipe gallery, rollers matched with the guide rails are arranged on the guide rails, the rotating shafts of the rollers are rotatably connected with lantern rings, the hinged shafts in the middle parts of the guide rails are hinged with telescopic devices, the telescopic devices are used for pushing the middle parts of the guide rails to move upwards or downwards in the vertical direction, the technical problems that a coiled wire is easily blocked when extending to the adjacent maintenance wells, the operation is complex, the consumption of operators is large, time and labor are wasted, the cable replacement efficiency is low are solved, the operation is convenient, the manual strength is reduced, the operation time is saved, and the stay cord is smoothly and quickly pulled in the underground pipe gallery, the technical effect of the replacement efficiency of the cable is improved.
Description
Technical Field
The invention relates to the technical field of cable maintenance, in particular to an underground cable maintenance traction device.
Background
In the real life, when the cable is inspected and changed, need the operation workman to use the spiral that has certain hardness to tie up the stay cord, stretch into the underground pipe gallery with the spiral from an access well, take off the stay cord from adjacent access well again, the other end of stay cord is tied up the cable, then the pulling stay cord, pull the cable to access well department, or take out the spiral in adjacent access well department, then tie the cable on the reel, the operation workman is advancing to drag the spiral when overhauing, take the cable to adjacent access well department, this in-process, the spiral stretches to adjacent access well and receives the hindrance easily, the operation is complicated, the operation workman consumes great, waste time and energy, the cable is changed efficiency and is lower.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an underground cable maintenance traction device, which solves the problems that a coiled wire extending to an adjacent maintenance well is easily blocked, the operation is complex, the consumption of operators is high, time and labor are wasted, and the cable replacement efficiency is low in the prior art.
According to the embodiment of the invention, the underground cable overhaul traction device comprises two sections of guide rails arranged between adjacent overhaul wells, the middle parts of the two sections of guide rails are hinged, two ends of each guide rail are hinged with suspenders, the suspenders are hinged and hung on the inner top wall of an underground pipe gallery, rollers matched with the guide rails are arranged on the guide rails, lantern rings are rotatably connected to rotating shafts of the rollers, and telescopic devices are hinged to hinged shafts in the middle parts of the guide rails and used for pushing the middle parts of the guide rails to move upwards or downwards in the vertical direction.
The technical principle of the invention is as follows: the initial state after opening the manhole is that the guide rail is in a natural state, at the moment, the middle part of the guide rail is in the lowest position, the pull rope is tied on a lantern ring of the roller, then the roller is placed on the guide rail, the roller rolls towards the middle part of the guide rail on the front half section of the guide rail under the action of self gravity to drive the pull rope to move together, when the roller reaches the middle part of the guide rail, the middle part of the guide rail is pushed to move upwards in the vertical direction by using a telescopic device, the roller passes over the middle part of the guide rail under the action of rolling and inertia, when the middle part of the guide rail rises to a high position, at the moment, the rear half section of the guide rail inclines downwards towards the tail end of the guide rail, the roller continues to roll towards the tail end of the guide rail on the rear half section of the inclined guide rail until the tail end of the guide rail is rolled, an operator takes out the roller at the adjacent manhole, then takes out the, after the replacement is completed, the guide rail is restored to the initial state, the operation is convenient, the manual strength is reduced, the operation time is saved, the pull rope is smoothly and quickly pulled in the underground pipe gallery, and the replacement efficiency of the cable is improved.
Compared with the prior art, the invention has the following beneficial effects: be in the V-arrangement state and the state of falling the V-arrangement through controlling the guide rail, make the gyro wheel roll the end of guide rail from the initiating terminal of guide rail, it has solved the spiral and has stretched adjacent manhole and receive the hindrance easily, the operation is complicated, the operation workman consumes great, waste time and energy, the lower technical problem of cable replacement efficiency, convenient operation has been produced, the labor strength has been reduced, operating time has been saved, the stay cord pulls smoothly and fast in the underground pipe gallery, the technical effect of the change efficiency of cable has been improved.
As a further improvement of the embodiment of the invention, the telescopic device comprises a pneumatic cylinder, the pneumatic cylinder is fixed on the bottom surface of the underground pipe gallery and is positioned right below the middle part of the guide rail, and a telescopic shaft of the pneumatic cylinder is hinged on a hinged shaft in the middle part of the guide rail.
As a further improvement of the embodiment of the present invention, the telescopic device includes a vertical rod, the vertical rod is hinged to a hinge shaft in the middle of the guide rail, the end of the vertical rod is hinged to a horizontal rod, a support rod is hinged to the horizontal rod, the support rod is fixed to the bottom surface of the underground pipe gallery, the end of the horizontal rod is hinged to a gravity braking device, and the gravity braking device is used for pressing one end of the horizontal rod and keeping the horizontal rod balanced.
As a further improvement of the embodiment of the invention, the gravity braking device comprises a groove which is vertically arranged on the side wall of the underground pipe gallery and has a convex cross section, the wide edge of the groove faces the inner side of the side wall of the underground pipe gallery, two rows of gears which are meshed with each other are arranged in the groove in parallel, a fluted disc which is matched with the gears is also arranged between the gears, a connecting shaft is fixedly connected onto the fluted disc, the connecting shaft extends out of the groove and is fixedly connected with a water tank, the cross bar is hinged to the bottom of the water tank, the water tank is arranged right below the inspection well, a clamping strip is arranged right above the gears and is connected onto the side wall of the underground pipe gallery in a sliding manner, and the clamping strip is close to the inspection well.
As a further improvement of the embodiment of the invention, the water tank is fixedly connected with a rope which is fixed on the side wall of the underground pipe gallery close to the maintenance well.
As a further improvement of the embodiment of the invention, a buffer table is arranged under the water tank, and springs are uniformly and fixedly connected to the buffer table.
As a further improvement of the embodiment of the present invention, the guide rail includes vertical plates arranged in opposite directions, a transverse plate is fixedly connected to the bottom of the vertical plate, a groove cavity is formed by the vertical plate and the transverse plate, the roller includes a rotating disc matched with the groove cavity, a cylinder is rotatably connected to a rotating shaft of the roller, and the cylinder is placed on the vertical plate.
As a further improvement of the embodiment of the invention, the vertical plates in the middle of the guide rails are respectively matched in a staggered manner.
As a further improvement of the embodiment of the invention, a concave ring is arranged on the lantern ring.
As a further improvement of the embodiment of the invention, the starting end and the tail end of the guide rail are both provided with a stop block, and the stop blocks are fixed on the guide rail.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of the embodiment of the invention.
Fig. 2 is a schematic view of a matching structure of a guide rail and a roller according to an embodiment of the invention.
Fig. 3 is a schematic view of a hinge-fitting structure of a guide rail according to an embodiment of the present invention.
Figure 1, underground pipe gallery; 11. repairing the well; 2. a guide rail; 21. a boom; 22. a vertical plate; 23. a transverse plate; 24. a slot cavity; 25. a stopper; 3. a roller; 31. a collar; 32. rotating the disc; 33. a barrel; 34. a concave ring; 4. a telescoping device; 41. a vertical rod; 42. a cross bar; 43. a support bar; 5. a gravity braking device; 51. a groove; 52. a gear; 53. a fluted disc; 54. a water tank; 55. clamping the strip; 56. a rope; 57. a buffer table; 58. a spring.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the embodiments.
As shown in fig. 1 to 3, the embodiment of the invention provides an underground cable overhaul traction device, which is applied to an underground pipe gallery 1, wherein an overhaul well 11 is arranged on the underground pipe gallery 1 and comprises two sections of guide rails 2 arranged between the adjacent overhaul wells 11, the middle parts of the two sections of guide rails 2 are hinged, two ends of each guide rail 2 are hinged with a suspender 21, the suspender 21 is hinged and hung on the inner top wall of the underground pipe gallery 1, a roller 3 matched with the guide rail 2 is arranged on the guide rail 2, a sleeve ring 31 is rotatably connected to a rotating shaft of the roller 3, a hinge shaft in the middle part of the guide rail 2 is hinged with a telescopic device 4, and the telescopic device 4 is used for pushing the middle part of the guide rail 2 to move upwards or downwards in the vertical direction.
According to another embodiment of the invention, the underground cable maintenance traction device comprises a pneumatic cylinder 4, the pneumatic cylinder is fixed on the bottom surface of the underground pipe gallery 1 and is positioned right below the middle part of the guide rail 2, the telescopic shaft of the pneumatic cylinder is hinged on the hinged shaft in the middle part of the guide rail 2, an air pump is connected with the pneumatic cylinder when the cable is replaced, the pneumatic cylinder is used for pushing the middle part of the guide rail 2 to ascend or descend so as to move the roller 3 from the starting end of the guide rail 2 to the tail end of the guide rail 2, and the operation is convenient and the control is convenient.
According to another embodiment of the invention, as shown in fig. 1, the underground cable maintenance traction device comprises a vertical rod 41, the vertical rod 41 is hinged on a hinged shaft in the middle of the guide rail 2, the tail end of the vertical rod 41 is hinged on a cross rod 42, a support rod 43 is hinged on the cross rod 42, the support rod 43 is fixed on the bottom surface of the underground pipe gallery 1, the tail end of the cross rod 42 is hinged on a gravity braking device 5, and the gravity braking device 5 is used for pressing one end of the cross rod 42 and keeping the cross rod 42 balanced.
The detailed working process of the embodiment is as follows: the gravity braking device 5 is used for rapidly pressing one end of the cross rod 42, one end of the cross rod 42 is stabilized at a position close to the bottom surface of the underground pipe gallery 1, the other end of the cross rod 42 rapidly jacks up the middle part of the guide rail 2 through the vertical rod 41, so that the roller 3 smoothly moves from one end of the guide rail 2 to the tail end of the guide rail 2, the lever principle is utilized, the manufacturing cost is reduced, and the maintenance cost is reduced.
According to another embodiment of the invention, as shown in fig. 1, the gravity braking device 5 includes a groove 51 with a convex cross section vertically formed on the side wall of the underground pipe gallery 1, a wide edge of the groove 51 faces the inner side of the side wall of the underground pipe gallery 1, two rows of gears 52 meshed with each other are arranged in the groove 51 in parallel, a fluted disc 53 matched with the gears 52 is further arranged between the gears 52, a connecting shaft is fixedly connected to the fluted disc 53, the connecting shaft extends out of the groove 51 and is fixedly connected with a water tank 54, the cross bar 42 is hinged to the bottom of the water tank 54, the water tank 54 is arranged right below the inspection well 11, a clamping bar 55 is arranged right above the gear 52, the clamping bar 55 is slidably connected to the side wall of the underground pipe gallery 1, and the clamping bar 55 is close to the inspection well 11.
The detailed working process of the embodiment is as follows: after raining, the water tank 54 collects rainwater, or water is injected into the water tank 54 during maintenance, so that the gravity of the water tank 54 is increased, the initial state is that the gear 52 is clamped by the clamping strip 55, the water tank 54 is stabilized at the upper part of the groove 51 and is adapted to the initial state of the guide rail 2, when the middle part of the guide rail 2 needs to be lifted, an operator lifts the clamping strip 55 at the maintenance well 11, the water tank 54 moves downwards rapidly under the action of the gravity of the operator, so that the middle part of the guide rail 2 is lifted rapidly by the other end of the cross rod 42, the roller 3 smoothly moves from one end of the guide rail 2 to the tail end of the guide rail 2, after the cable is replaced, the water tank 54 is lifted to the upper end of the groove 51, the clamping strip 55 is inserted, the water tank 54 is clamped at the upper part of the groove 51, at the moment, the guide rail 2 is in the initial state, the next maintenance and replacement are facilitated, an operator does not need to carry an electric device when replacing the cable, and the cable is convenient and quick to carry along with the detection.
According to another embodiment of the invention, as shown in fig. 1, a rope 56 is fixedly connected to a water tank 54, the rope 56 is fixed to the side wall of an underground pipe gallery 1 close to a maintenance well 11, after the cable is replaced, the water tank 54 is lifted by the rope 56, the use is convenient, the whole cable replacement process is carried out, an operator does not need to enter the underground pipe gallery 1 for maintenance, and the comfort of the operator is improved.
According to another embodiment of the invention, as shown in fig. 1, a buffer table 57 is arranged under the water tank 54, a spring 58 is uniformly and fixedly connected to the buffer table 57, and the spring 58 is used for buffering the collision of the water tank 54 and preventing the water tank 54 from leaking water.
According to another embodiment of the invention, as shown in fig. 2, the underground cable maintenance traction device comprises a guide rail 2 and a vertical plate 22, wherein the vertical plate 22 is arranged in an opposite manner, a transverse plate 23 is fixedly connected to the bottom of the vertical plate 22, the vertical plate 22 and the transverse plate 23 form a groove cavity 24, the roller 3 comprises a rotating disc 32 matched with the groove cavity 24, a cylinder 33 is rotatably connected to a rotating shaft of the roller 3, the cylinder 33 is placed on the vertical plate 22, the vertical plate 22 is used for clamping the rotating disc 32 of the roller 3, the roller 3 is prevented from running out of the guide rail 2 when rolling, and the roller 3 can move on the guide rail 2 more smoothly.
According to another embodiment of the invention, as shown in fig. 3, the vertical plates 22 in the middle of the guide rail 2 are respectively matched in a staggered manner, so that the roller 3 can pass through the middle of the guide rail 2 more smoothly.
According to another embodiment of the present invention, as shown in fig. 2, a traction device for repairing underground cables, a concave ring 34 is provided on the collar 31 to facilitate binding of a pull rope.
According to another embodiment of the invention, as shown in fig. 1, the underground cable maintenance traction device is provided with the stop blocks 25 at the starting end and the tail end of the guide rail 2, and the stop blocks 25 are fixed on the guide rail 2 to prevent the roller 3 from running out of the guide rail 2, so that unnecessary operation is avoided.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides an underground cable overhauls draw gear which characterized in that: including setting up two sections guide rails between adjacent manhole, two sections the middle part of guide rail is articulated, and the both ends of guide rail are articulated to have the jib, the jib is articulated to be hung and is established on the interior roof of underground pipe gallery, be provided with on the guide rail with guide rail matched with gyro wheel, the axis of rotation of gyro wheel is gone up to rotate and is connected with the lantern ring, articulated on the articulated shaft at guide rail middle part has the telescoping device, the telescoping device is used for promoting the middle part of guide rail upwards or downstream in vertical direction.
2. An underground cable service towing attachment according to claim 1, wherein: the telescoping device includes the pneumatic cylinder, the pneumatic cylinder is fixed on the bottom surface of underground pipe gallery, and the pneumatic cylinder is located under the middle part of guide rail, the telescopic shaft of pneumatic cylinder articulates on the articulated shaft in the middle part of the guide rail.
3. An underground cable service towing attachment according to claim 1, wherein: the telescopic device comprises a vertical rod, the vertical rod is hinged to a hinged shaft at the middle part of the guide rail, the tail end of the vertical rod is hinged to a transverse rod, a supporting rod is hinged to the transverse rod, the supporting rod is fixed to the bottom surface of the underground pipe gallery, the tail end of the transverse rod is hinged to a gravity braking device, and the gravity braking device is used for pressing one end of the transverse rod and keeping the transverse rod balanced.
4. An underground cable service towing attachment according to claim 3, wherein: gravity braking device includes vertical seting up cross-section on the lateral wall of underground pipe gallery is convex recess, the wide edge of recess is inboard towards the lateral wall of underground pipe gallery, is provided with the gear of two rows of interlocks of each other in the recess side by side, still be provided with rather than the complex fluted disc between the gear, fixedly connected with connecting axle on the fluted disc, the connecting axle stretches out recess fixedly connected with water tank, the horizontal pole articulates the bottom at the water tank, the water tank sets up under the inspection shaft, be provided with the trip directly over the gear, trip sliding connection is in on the lateral wall of underground pipe gallery, the trip is close to the inspection shaft.
5. An underground cable service towing attachment according to claim 4, wherein: fixedly connected with rope on the water tank, the rope is fixed on the lateral wall of the underground pipe gallery that is close to the inspection shaft.
6. An underground cable service towing attachment according to claim 5, wherein: the water tank is provided with a buffer table under water, and springs are uniformly and fixedly connected to the buffer table.
7. An underground cable service towing attachment according to any one of claims 1, 2 or 6, wherein: the guide rail comprises vertical plates arranged oppositely, a transverse plate is fixedly connected to the bottoms of the vertical plates, a groove cavity is formed by the vertical plates and the transverse plate, the idler wheel comprises a rotating disc matched with the groove cavity, a barrel is rotatably connected to the rotating shaft of the idler wheel, and the barrel is placed on the vertical plates.
8. An underground cable service towing attachment according to claim 7, wherein: and the vertical plates in the middle of the guide rails are respectively matched in a staggered manner.
9. An underground cable service towing attachment according to claim 1, wherein: the lantern ring is provided with a concave ring.
10. An underground cable service towing attachment according to claim 1, wherein: the starting end and the tail end of the guide rail are both provided with a stop block, and the stop blocks are fixed on the guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011049790.4A CN112290444A (en) | 2020-09-29 | 2020-09-29 | Underground cable overhauls draw gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011049790.4A CN112290444A (en) | 2020-09-29 | 2020-09-29 | Underground cable overhauls draw gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112290444A true CN112290444A (en) | 2021-01-29 |
Family
ID=74422497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011049790.4A Pending CN112290444A (en) | 2020-09-29 | 2020-09-29 | Underground cable overhauls draw gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112290444A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113612164A (en) * | 2021-08-25 | 2021-11-05 | 国家电网有限公司 | Power line corridor wiring device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1207331A2 (en) * | 2000-11-16 | 2002-05-22 | Tesmec SpA | Machine for laying underground pipes, electrical cables, optical fibres or similar, and device for pushing the pipes associated with this machine |
| CN103043572A (en) * | 2012-12-25 | 2013-04-17 | 日立电梯（中国）有限公司 | Foldable maintenance platform |
| CN106081995A (en) * | 2016-07-16 | 2016-11-09 | 成都赋阳技术开发有限公司 | A kind of electric power overhaul device |
| CN108086152A (en) * | 2018-02-05 | 2018-05-29 | 东莞市粤惠建筑工程技术咨询有限公司 | A kind of universal road and bridge suspension maintenance tool |
| CN108107053A (en) * | 2018-01-30 | 2018-06-01 | 南京卓茨机电科技有限公司 | A kind of wide underground pipe gallery inspection device of investigative range based on Internet of Things |
| CN208946152U (en) * | 2018-10-12 | 2019-06-07 | 陕西西驱电子科技有限公司 | A kind of piping lane crusing robot guide track system |
-
2020
- 2020-09-29 CN CN202011049790.4A patent/CN112290444A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1207331A2 (en) * | 2000-11-16 | 2002-05-22 | Tesmec SpA | Machine for laying underground pipes, electrical cables, optical fibres or similar, and device for pushing the pipes associated with this machine |
| CN103043572A (en) * | 2012-12-25 | 2013-04-17 | 日立电梯（中国）有限公司 | Foldable maintenance platform |
| CN106081995A (en) * | 2016-07-16 | 2016-11-09 | 成都赋阳技术开发有限公司 | A kind of electric power overhaul device |
| CN108107053A (en) * | 2018-01-30 | 2018-06-01 | 南京卓茨机电科技有限公司 | A kind of wide underground pipe gallery inspection device of investigative range based on Internet of Things |
| CN108086152A (en) * | 2018-02-05 | 2018-05-29 | 东莞市粤惠建筑工程技术咨询有限公司 | A kind of universal road and bridge suspension maintenance tool |
| CN208946152U (en) * | 2018-10-12 | 2019-06-07 | 陕西西驱电子科技有限公司 | A kind of piping lane crusing robot guide track system |
Non-Patent Citations (1)
| Title |
|---|
| 杨文睿等: "电梯导轨检测***及检测方法研究", 《检验检疫学刊》, vol. 2019, no. 06, 20 December 2019 (2019-12-20), pages 107 - 109 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113612164A (en) * | 2021-08-25 | 2021-11-05 | 国家电网有限公司 | Power line corridor wiring device |
| CN113612164B (en) * | 2021-08-25 | 2023-08-29 | 国家电网有限公司 | Power line corridor wiring device |
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