CN107008710A - A kind of cable pipeline dredging device - Google Patents
A kind of cable pipeline dredging device Download PDFInfo
- Publication number
- CN107008710A CN107008710A CN201710451645.0A CN201710451645A CN107008710A CN 107008710 A CN107008710 A CN 107008710A CN 201710451645 A CN201710451645 A CN 201710451645A CN 107008710 A CN107008710 A CN 107008710A
- Authority
- CN
- China
- Prior art keywords
- traveler
- drawstring
- mounting cylinder
- dismounting apparatus
- air bag
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/049—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
A kind of cable pipeline dredging device, is related to electric construction tool technical field, the problem of being difficult to dredging cable channel for solution.A kind of cable pipeline dredging device, including preceding traveler, dredge, compression spring, rear traveler, rope winder, drawstring group, air pump, water pump and controller, before the front end of the compression spring is connected in traveler, the rear end of the compression spring is connected in rear traveler, the preceding traveler and rear traveler respectively include air bag, the rope winder connection is in the rear in traveler, the rope winder includes rope-winding wheel, the drawstring group includes drawstring, before the front end of the drawstring is connected in traveler, the rear end of drawstring is wrapped on the rope-winding wheel；The dredge includes nozzle, and nozzle is connected with the water pump, and the water pump, the air pump, the motor are electrically connected with the controller.Beneficial effect is can smoothly to be moved in cable channel, be easy to the dredging of cable channel.
Description
Technical field
The present invention relates to electric construction tool technical field, specifically a kind of cable pipeline dredging device.
Background technology
For buried cable, it is necessary to what the cable channel by cable shaft and between cable shaft was connected up
Work, for example, when two spacing is the work of progress cable distribution between 50 meters of cable shaft, cable is from positioned at this
Pass through, the diameter of cable channel is unsatisfactory for the condition that workmen passes through, only meet among cable channel between two hoistways
The condition that one or several cables are passed through, and for some cable channels idle for a long time, often due to some natures
Factor causes inside cable channel to be blocked by mud or soil block.So, had to pair before cable distribution work is carried out
Cable shaft carries out dredging work.
During being dredged to cable channel, because the width of cable shaft is limited, it is impossible to entered using rod member
Row smashes logical work.So, prior art is difficult to the dredging work of cable channel.
The content of the invention
It is an object of the invention to provide a kind of cable pipeline dredging device, for solving to be difficult to dredge asking for cable channel
Topic.
The technical scheme adopted by the invention to solve the technical problem is that：
A kind of cable pipeline dredging device, including preceding traveler, dredge, compression spring, rear traveler, rope winder, drawing
Rope group, air pump, water pump and controller, before the front end of the compression spring is connected in traveler, the rear end of the compression spring
It is connected in rear traveler, the preceding traveler and rear traveler respectively include air bag, each air bag connects with the air pump respectively
Connect, the rope winder connection is in the rear in traveler, and the rope winder includes motor and rope-winding wheel, the motor
Working shaft and rope-winding wheel drive connection, the drawstring group includes drawstring, and the front end of the drawstring is connected to described move ahead
Enter on device, the rear end of the drawstring is wrapped on the rope-winding wheel；
The dredge is connected to the front end of the preceding traveler, and the dredge includes nozzle, the nozzle with it is described
Water pump is connected, and the water pump, the air pump, the motor are electrically connected with the controller.
Further, in addition to illuminating lamp, camera and monitor, illuminating lamp and camera are located at the preceding traveler
Front end, illuminating lamp and controller electrical connection, camera and monitor signal connection.
Further, the dredge also includes dredging drill, and dredging drill includes dredging motor and motor-driven by dredging
Rotary cutter, dredging motor and controller electrical connection.
Further, the preceding traveler and rear traveler respectively include mounting cylinder, and the rear and front end opening of mounting cylinder is installed
The rear and front end of cylinder is respectively provided with some screwed holes.
Further, the rear and front end of the compression spring is respectively provided with ring flange, the ring flange positioned at compression spring front end
It is bolted positioned at moving ahead into the rear end of the mounting cylinder on device, the ring flange positioned at compression spring rear end is connected by bolt
The front end for the mounting cylinder being connected in rear traveler.
Further, the dredge is bolted positioned at moving ahead into the front end of the mounting cylinder on device.
Further, the preceding traveler and the rear traveler respectively include the air bag collar, in the preceding traveler
Air bag be connected on the excircle of the air bag collar in preceding traveler, the Air sac cover ring set in preceding traveler is located at
The outer ring of the mounting cylinder in preceding traveler；Air bag in the rear traveler is connected in rear traveler
The air bag collar excircle on, the Air sac cover ring set in rear traveler is provided at the mounting cylinder in rear traveler
Outer ring, be respectively provided with each air bag collar for and corresponding mounting cylinder connect air bag otic placode, air bag otic placode is connected by bolt
It is connected on the end of corresponding mounting cylinder.
Further, the preceding traveler includes preceding dismounting apparatus, and preceding dismounting apparatus include drawstring ring and preceding dismounting apparatus otic placode, preceding
Dismounting apparatus otic placode is located at the front end of preceding dismounting apparatus, and preceding dismounting apparatus otic placode is bolted positioned at moving ahead into the peace on device
The front end of fitted tube, the rear end of dismounting apparatus before drawstring ring is connected to, the front end of the drawstring is tied up on drawstring ring, and preceding dismounting apparatus are arranged
Positioned at moving ahead into the mounting cylinder on device.
Further, the rear traveler includes rear dismounting apparatus, and rear dismounting apparatus include drawstring hole and rear dismounting apparatus otic placode, after
Dismounting apparatus otic placode is located at the rear end of rear dismounting apparatus, and rear dismounting apparatus otic placode is bolted in the peace in rear traveler
The rear end of fitted tube, is set before and after drawstring hole, and the rear end that the drawstring goes out passes through drawstring hole, rear dismounting apparatus are set in be located at after advance
In the mounting cylinder on device, rear dismounting apparatus include rear dismounting apparatus inner chamber, and the rope-winding wheel is located in rear dismounting apparatus inner chamber.
The beneficial effects of the invention are as follows：
1st, a kind of cable shaft dredger that the present invention is provided, can enter in cable channel and cable channel is carried out
Dredge work.Because cable channel is being embedded to after underground, locally slight bending, this bending can occur for cable channel
The object especially rigid objects with certain length walked in cable shaft can be affected, compression spring
The present invention is used not only in cable channel to advance, and the elastic deformation of compression spring and bending can be good at being applicable
Cable channel is located at local slight bending, so that it is guaranteed that the present invention smoothly moves ahead in cable channel.Cable channel is at some
In the case of can use bellows, and the inwall of bellows is in the presence of rising and falling, and this rise and fall causes what some were advanced using train
Mechanism can not normal work, the air bag in preceding traveler and rear traveler of the invention can be good at being applicable it is this rise and fall, protect
Traveler normal forward in cable channel before card.
2nd, illuminating lamp provides light source for the work of camera, and illumination etc. is connected by controller, and staff is at ground
The traveling situation of preceding traveler is made by monitor and timely being understood.
3rd, after nozzle unlatching, controller control dredging drill is opened, so as to improve the efficiency of dredging.
4th, the structure of mounting cylinder can facilitate the dismounting between each structure, so as to be conducive to the service work of the present invention.
Brief description of the drawings
Fig. 1 is the structural representation of cable shaft and cable channel；
Fig. 2 is Fig. 2 A-A cross section views；
Fig. 3 is the connected mode view of preceding traveler, rear traveler and dredge；
Fig. 4 is Fig. 3 B direction views；
Fig. 5 is the structural representation of air bag and Air sac cover ring；
Fig. 6 is the topology view of mounting cylinder；
Fig. 7 is the structural representation of rear dismounting apparatus；
Fig. 8 is the structural representation of preceding dismounting apparatus；
Fig. 9 is the structural representation of dredge；
In figure：1 first cable shaft, 11 cable channels, 12 second cable shafts, 13 hoistways mouthful, traveler, 21 peaces before 2
Fitted tube, 22 screwed holes, dismounting apparatus before 23,24 drawstring rings, dismounting apparatus otic placode, 3 dredges, 31 dredge installing plates, 32 sprays before 25
Mouth, 321 water bands, 33 illuminating lamps, 34 cameras, 35 dredging motors, 36 rotary cutters, 4 compression springs, 41 ring flanges are advanced after 5
Device, dismounting apparatus after 51, dismounting apparatus otic placode after 52,53 drawstring holes, after 54 dismounting apparatus inner chamber, and 6 air bags, the 61 air bag collars, 62 cards are fast,
63 air bag otic placodes, 64 Valve for aerocyst, 7 motors, 71 rope-winding wheels, 8 drawstrings.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
As depicted in figs. 1 and 2, buried cable installation work for convenience, sets the first cable shaft 1 and the second cable shaft
Road 12, underground preburied between the first cable shaft 1 and the second cable shaft 12 has some cable channels 11, is carrying out
Staff needs to carry out operation into hoistway under hoistway mouthful 13 when connecting up or safeguard, the present invention be directed to such electricity
The dredging of cable pipeline 11 carries out invention design.
As shown in Fig. 3 to Fig. 9, describe for convenience, it is " preceding " to define the direction for pointing to preceding traveler 2 from rear traveler 5.
As shown in figures 1 to 6, the present invention includes preceding traveler 2, dredge 3, compression spring 4, rear traveler 5, wiring
Device, drawstring group, air pump, water pump and controller.Preceding traveler 2 and rear traveler 5 respectively include mounting cylinder 21, mounting cylinder 21 it is front and rear
Both ends open, the rear and front end of mounting cylinder 21 is respectively provided with some screwed holes 22.The front end of compression spring 4 is connected to preceding traveler
On, the rear end of compression spring 4 is connected in rear traveler, and the rear and front end of compression spring 4 is respectively provided with ring flange 41, positioned at compression
The ring flange of spring at front end is bolted positioned at moving ahead into the rear end of the mounting cylinder 21 on device 2, after compression spring
The ring flange 41 at end is bolted in the front end of the mounting cylinder in rear traveler 5.
As shown in Figures 3 to 6, preceding traveler 2 and rear traveler 5 respectively include air bag 6, and preceding traveler 2 and rear traveler 5 are each
Including the air bag collar 61, the air bag 6 positioned in preceding traveler 2 is connected to the excircle of the air bag collar 61 in preceding traveler
On, the outer ring of the mounting cylinder 21 before the Air sac cover ring set 61 in preceding traveler is provided in traveler 2；Advanced after being located at
Air bag on device is connected on the excircle of the air bag collar in rear traveler, the Air sac cover ring set in rear traveler
It is respectively provided with the outer ring for the mounting cylinder being provided in rear traveler, each air bag collar 61 for being connected with corresponding mounting cylinder
Air bag otic placode 63, air bag otic placode 63 is bolted in the end of corresponding mounting cylinder.Each air bag collar respectively includes fixture block
62 and Valve for aerocyst 64, Valve for aerocyst, which is located at Valve for aerocyst 64 on fixture block, to be used to connect tracheae, and each air bag passes through tracheae and connected with air pump respectively
Connect, tracheae uses flexible material, air pump is electrically connected with the controller.
As shown in Figure 3 and Figure 4, rope winder is connected in rear traveler 5, and rope winder includes motor 7 and rope-winding wheel 71.
The working shaft and rope-winding wheel 71 of motor 7 are connected, and such as working shaft of motor 7 and rope-winding wheel 71 pass through gear train
It is connected.Motor and controller electrical connection.Drawstring group includes drawstring 8, and the quantity of drawstring, which is tried one's best, is greater than three,
Each drawstring is passed through from the inner ring of compression spring, and each drawstring is uniformly distributed in the circumference of the inner ring of compression spring.
As shown in Fig. 3, Fig. 4, Fig. 6, Fig. 7 and Fig. 8, before the front end of drawstring 8 is connected in traveler 2, the rear end of drawstring 8 is twined
It is wound on rope-winding wheel 71.Preceding traveler 2 includes preceding dismounting apparatus 23, and preceding dismounting apparatus 23 include drawstring ring 24 and preceding dismounting apparatus otic placode
25, preceding dismounting apparatus otic placode 25 be located at preceding dismounting apparatus 25 front end, preceding dismounting apparatus otic placode 25 be bolted positioned at move ahead into
The front end of mounting cylinder 21 on device 2, the rear end of dismounting apparatus 23 before drawstring ring 24 is connected to, the front end of drawstring 8 ties up to drawstring ring 24
On, preceding dismounting apparatus 23 are set in the mounting cylinder 21 in preceding traveler.Afterwards traveler 5 include rear dismounting apparatus 51, after pull
Device 51 includes drawstring hole 53 and the otic placode of rear dismounting apparatus 52, and rear dismounting apparatus otic placode 52 is located at the rear end of rear dismounting apparatus 51, rear dismounting apparatus
Otic placode 52 is bolted in the rear end of the mounting cylinder in rear traveler, is set before and after drawstring hole 53, after drawstring 8 goes out
End is through drawstring hole 53, and rear dismounting apparatus are set in the mounting cylinder in rear traveler, and rear dismounting apparatus are included in rear dismounting apparatus
Chamber 54, rope-winding wheel 71 is located in rear dismounting apparatus inner chamber 54.
As shown in Fig. 3, Fig. 6 and Fig. 9, dredge 3 is bolted in the front end of preceding traveler.Dredge includes nozzle
32nd, dredge installing plate 31 and dredging drill, dredging drill include dredging motor 35 and by dredging motor-driven rotary cutter 36, dredge
Three-way motor 35 and controller electrical connection.The support of nozzle 32 and dredging motor 35 is connected on dredge installing plate 31, dredge
Installing plate 31 is bolted positioned at moving ahead into the front end of the mounting cylinder 21 on device 2.Nozzle 32 is connected with water pump, nozzle 32
A water band 321 is connected, water band 321 is connected from the inner ring through compression spring and rear traveler, nozzle 32 by water band 321 and water pump
Connect, water pump and controller electrical connection, dredging motor and controller electrical connection.
As shown in Fig. 3, Fig. 6 and Fig. 9, present invention additionally comprises illuminating lamp 33, camera 34 and monitor, illuminating lamp 33 and take the photograph
The front end of traveler 2 before being located at as first 34, illuminating lamp 33 and controller electrical connection, the electricity for connecting illuminating lamp 33 and controller
Line is passed through from the inner ring and rear traveler of compression spring, and is drawn from the rear end of rear traveler.Camera and monitor signal connect
Connect.
As shown in Figures 1 to 9, when cable channel dredging work is carried out using the present invention, by air pump, water pump and control
The devices such as device processed are placed on the open place such as ground, by air pump by preceding traveler 2 and the inside of the air bag 6 of rear traveler 5
Air extract out respectively, then by preceding traveler 2 and rear traveler 5 be placed into need dredge cable channel 11 in.In cable
Traveler 2 is preceding before ensureing when being placed in pipeline 11, and rear traveler 5 is rear.Then, the airbag aeration of preceding traveler 2, moves ahead
Enter device 2 to be clamped under the left and right of the air bag of expansion in cable channel 11, then motor 7 is rotated, rope-winding wheel 71 is carried out
Wiring works, traveler 2 before then rear traveler 5 is pulled to.Then, the work that air pump is inflated to the air bag of rear traveler 5
Make, the air bag expansion of rear traveler 5, so that rear traveler 5 is clamped in cable channel 11.Then, by air pump by position
Air in the air bag in preceding traveler 2 is extracted out, and preceding traveler is released from cable channel 11, and preceding traveler 2 is in compression
It is advanced in the presence of spring 4.Then the air bag of preceding traveler 2 is inflated by air pump again so that preceding traveler 2
It is clamped in cable channel 11, is then again extracted out the air in the air bag of rear traveler 5 by air pump, so that rear advances
Device discharges from cable channel, then repeats the action of traveler before above-mentioned propulsion so that preceding traveler 2 is constantly in cable channel
Moved ahead in 11, until making the dredge 3 being located in preceding traveler 2 arrive at the position of needs dredging.Then, water pump is acted, spray
Mouth sprays the water column of certain pressure, so as to mud or soil block be broken up, so as to realize the dredging work to cable channel.In electricity
Cable pipeline is by after dredging, by pulling water band or pulling for connecting the circuit of motor and controller by the present invention
Part in cable channel is pulled out.
As shown in Figures 1 to 9, because cable channel is being embedded to after underground, cable channel 11 can locally occur gently
Micro- bending, this bending can cause one to the object especially rigid objects with certain length walked in cable shaft
Fixed influence, compression spring 4 is used not only for the present invention and advanced in cable channel 11, and the elasticity change of compression spring 4
Shape and bending can be good at being applicable the slight bending that cable channel 11 is located at part, so that it is guaranteed that the present invention is in cable channel
Smoothly move ahead.
As shown in Figures 1 to 9, cable channel 11 can use bellows in some cases, and the inwall of bellows is to deposit
In fluctuating, it is this rise and fall some are advanced using train mechanism can not normal work, preceding traveler 2 of the invention and after
Air bag in traveler 5 can be good at being applicable this rise and fall, it is ensured that preceding traveler 2 normal forward in cable channel 11.
As shown in Figure 3 and Figure 9, illuminating lamp 33 provides light source for the work of camera 34, and illumination etc. is connected by controller,
Staff is made at ground by monitor to the traveling situation of preceding traveler 2 timely to be understood.When nozzle 32 open with
Afterwards, controller control dredging drill is opened, so as to improve the efficiency of dredging.
As shown in Fig. 3 to Fig. 9, the structure of mounting cylinder can facilitate the dismounting between each structure, so as to be conducive to this to send out
Bright service work.
Claims (9)
1. a kind of cable pipeline dredging device, it is characterized in that, including preceding traveler, dredge, compression spring, rear traveler, around
Rope device, drawstring group, air pump, water pump and controller, before the front end of the compression spring is connected in traveler, the compression spring
Rear end be connected in rear traveler, the preceding traveler and rear traveler respectively include air bag, each air bag respectively with it is described
Air pump is connected, and the rope winder connection is in the rear in traveler, and the rope winder includes motor and rope-winding wheel, the drive
The working shaft of dynamic motor and rope-winding wheel drive connection, the drawstring group include drawstring, and the front end of the drawstring is connected to institute
Before stating in traveler, the rear end of the drawstring is wrapped on the rope-winding wheel；
The dredge is connected to the front end of the preceding traveler, and the dredge includes nozzle, the nozzle and the water pump
Connection, the water pump, the air pump, the motor are electrically connected with the controller.
2. a kind of cable pipeline dredging device according to claim 1, it is characterized in that, in addition to illuminating lamp, camera and
Monitor, illuminating lamp and camera are located at the front end of the preceding traveler, illuminating lamp and controller electrical connection, camera and
The monitor signal connection.
3. a kind of cable pipeline dredging device according to claim 1, it is characterized in that, the dredge also includes dredging
Bore, dredging drill includes dredging motor and by dredging motor-driven rotary cutter, dredging motor and controller electrical connection.
4. a kind of cable pipeline dredging device according to claims 1 to 3 any one, it is characterized in that, the preceding traveling
Device and rear traveler respectively include mounting cylinder, and the rear and front end opening of mounting cylinder, the rear and front end of mounting cylinder is respectively provided with some spiral shells
Pit.
5. a kind of cable pipeline dredging device according to claim 4, it is characterized in that, the rear and front end of the compression spring
Ring flange is respectively provided with, the ring flange positioned at compression spring front end is bolted positioned at moving ahead into after the mounting cylinder on device
End, the ring flange positioned at compression spring rear end is bolted in the front end of the mounting cylinder in rear traveler.
6. a kind of cable pipeline dredging device according to claim 4, it is characterized in that, the dredge is bolted
Positioned at moving ahead into the front end of the mounting cylinder on device.
7. a kind of cable pipeline dredging device according to claim 4, it is characterized in that, the preceding traveler and the rear row
Entering device respectively includes the air bag collar, and the air bag in the preceding traveler is connected to the outer of the air bag collar in preceding traveler
On circumference, the outer ring of the mounting cylinder before the Air sac cover ring set in preceding traveler is provided in traveler；Positioned at institute
On the excircle for stating the air bag collar that the air bag in rear traveler is connected in rear traveler, the gas in rear traveler
Cuff ring set, which is provided at being respectively provided with the outer ring of the mounting cylinder in rear traveler, each air bag collar, to be used for and corresponding
Mounting cylinder connects air bag otic placode, and air bag otic placode is bolted in the end of corresponding mounting cylinder.
8. a kind of cable pipeline dredging device according to claim 4, it is characterized in that, the preceding traveler is pulled before including
Device, preceding dismounting apparatus include drawstring ring and preceding dismounting apparatus otic placode, and preceding dismounting apparatus otic placode is located at the front end of preceding dismounting apparatus, preceding dismounting apparatus ear
Plate is bolted positioned at moving ahead into the front end of the mounting cylinder on device, and drawstring ring is connected to the rear end of preceding dismounting apparatus,
The front end of the drawstring is tied up on drawstring ring, and preceding dismounting apparatus are set in the mounting cylinder in preceding traveler.
9. a kind of cable pipeline dredging device according to claim 4, it is characterized in that, the rear traveler is pulled after including
Device, rear dismounting apparatus include drawstring hole and rear dismounting apparatus otic placode, and rear dismounting apparatus otic placode is located at the rear end of rear dismounting apparatus, rear dismounting apparatus ear
Plate is bolted in the rear end of the mounting cylinder in rear traveler, is set before and after drawstring hole, what the drawstring went out
Rear end passes through drawstring hole, and rear dismounting apparatus are set in the mounting cylinder in rear traveler, and rear dismounting apparatus are pulled after including
Device inner chamber, the rope-winding wheel is located in rear dismounting apparatus inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710451645.0A CN107008710B (en) | 2017-06-15 | 2017-06-15 | A kind of cable pipeline dredging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710451645.0A CN107008710B (en) | 2017-06-15 | 2017-06-15 | A kind of cable pipeline dredging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107008710A true CN107008710A (en) | 2017-08-04 |
| CN107008710B CN107008710B (en) | 2019-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710451645.0A Active CN107008710B (en) | 2017-06-15 | 2017-06-15 | A kind of cable pipeline dredging device |
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| CN (1) | CN107008710B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110639901A (en) * | 2019-08-23 | 2020-01-03 | 国网山东省电力公司寿光市供电公司 | Cable duct cleaning device |
| CN111940434A (en) * | 2020-06-28 | 2020-11-17 | 西安理工大学 | Cleaning device for inside oil cake of pipeline |
| CN112077083A (en) * | 2020-09-01 | 2020-12-15 | 浙江新寰科环保科技股份有限公司 | Algae removal device for sampling pipeline of water quality online monitoring analyzer |
| CN114054441A (en) * | 2021-11-25 | 2022-02-18 | 国网天津市电力公司 | Rotary cutting device for obstacles in cable arrangement pipe |
| CN115254827A (en) * | 2022-07-21 | 2022-11-01 | 国网山东省电力公司济南市历城区供电公司 | Cable protection pipe dredging equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115254827B (en) * | 2022-07-21 | 2023-09-22 | 国网山东省电力公司济南市历城区供电公司 | Cable protection pipe dredging equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107008710B (en) | 2019-02-19 |
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