CN111463720A - Paying-off walking device for laying cable on outer wall of pipeline - Google Patents
Paying-off walking device for laying cable on outer wall of pipeline Download PDFInfo
- Publication number
- CN111463720A CN111463720A CN202010471791.1A CN202010471791A CN111463720A CN 111463720 A CN111463720 A CN 111463720A CN 202010471791 A CN202010471791 A CN 202010471791A CN 111463720 A CN111463720 A CN 111463720A
- Authority
- CN
- China
- Prior art keywords
- wall
- main frame
- pipeline
- paying
- pay
- 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.)
- Pending
Links
- 238000004891 communication Methods 0.000 claims description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 13
- 230000009194 climbing Effects 0.000 abstract description 3
- 239000011229 interlayer Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 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
- 230000003287 optical effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/504—Installation in solid material, e.g. underground
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/54—Underground or underwater installation; Installation through tubing, conduits or ducts using mechanical means, e.g. pulling or pushing devices
-
- 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
- H02G1/088—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 pulling devices movable inside conduits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention discloses a paying-off walking device for laying cables on the outer wall of a pipeline, which comprises a main frame with a certain radian, wherein a four-wheel drive device with an adjustable wheel track to adapt to pipelines with different diameters is arranged on the concave surface of the main frame, and the four-wheel drive device is tightly attached to the outer wall of the pipeline to drive and walk; the convex surface of the main frame is provided with a power supply device, a main supporting device and a rotary pay-off device. The pay-off walking device for laying the cable on the outer wall of the pipeline can automatically walk in an interlayer between the pipeline and a roadway, and can complete pay-off work, so that the situation that the cable is manually paved on the outer wall of the pipeline in a climbing manner is avoided, the risk probability of harm of constructors is reduced, and the work efficiency of pay-off construction of a jacking pipe is effectively improved.
Description
Technical Field
The invention relates to the field of pipeline cable laying, in particular to a paying-off walking device for laying cables on the outer wall of a pipeline.
Background
The pipeline transportation is widely applied to modern society as a safe and convenient transportation mode, and particularly occupies a leading position in the fields of long-distance oil and gas transportation, water supply, heat supply and the like, thereby bringing great convenience to production and life of people. However, the pipeline may cross a river or cross a railway during the laying process, and the pipe jacking technology may be adopted to ensure the normal construction and laying of the pipeline. The pipe jacking technology is a trenchless tunneling type pipeline laying construction technology used for municipal construction. The method has the advantages of no influence on the surrounding environment or less influence, small construction site and low noise. But also can be deeply operated underground, which is incomparable with the advantages of digging and burying pipes.
However, in the construction by using the pipe-jacking technology, after the pipeline is installed, the cable or the optical cable needs to be laid on the outer wall of the pipeline in a manual climbing manner, and because the space between the underground tunnel established by the pipe-jacking construction and the outer wall of the laid pipeline is very narrow, the cable laying personnel can only crawl forward, the construction efficiency is low, and the danger coefficient of the cable laying personnel is extremely high due to the influence of the construction environment.
Disclosure of Invention
The invention aims to provide a paying-off walking device for laying cables on the outer wall of a pipeline, which solves the problems that the space between an underground tunnel established by pipe jacking construction and the outer wall of the laid pipeline is very narrow, cable laying personnel can only crawl forward, the construction efficiency is low, and the danger coefficient of the cable laying personnel is extremely high under the influence of the construction environment.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a paying-off walking device for laying cables on the outer wall of a pipeline, which comprises a main frame with a certain radian, wherein a four-wheel drive device with an adjustable wheel track to adapt to pipelines with different diameters is arranged on the concave surface of the main frame, and the four-wheel drive device is tightly attached to the outer wall of the pipeline to drive and walk; the convex surface of the main frame is provided with a power supply device, a main supporting device and a rotary pay-off device;
the main supporting device comprises four uniformly distributed telescopic rods, the lower ends of the telescopic rods are fixedly connected with the convex surface of the main frame, and the upper ends of the telescopic rods are provided with first rollers;
the rotary pay-off device comprises a pay-off motor arranged on the convex surface of the main frame, a pay-off tray is arranged on a power output shaft of the pay-off motor, and a wire guide ring is arranged behind the pay-off tray.
Further, the four-wheel drive device comprises four uniformly distributed driving wheels, wherein a base is arranged at the top of each driving wheel, a plurality of mounting hole sites used for adjusting the distance between two adjacent transverse wheels are arranged on the concave surface of the main frame, and mounting bolts on the base are in threaded connection with the corresponding mounting hole sites.
Further, the power supply device comprises a power supply housing arranged on the main frame, and a lithium battery for supplying power is placed in the power supply housing.
Furthermore, a lighting device and a camera device are arranged in front of the power supply shell;
the wireless communication control module is arranged on the main frame, and the illuminating device, the camera device, the driving wheel and the pay-off motor are electrically connected with the wireless communication control module.
Furthermore, the telescopic link adopts the electric push rod, the electric push rod with wireless communication control module electric connection.
Furthermore, be located two of homonymy be provided with inclination adjustable auxiliary stay pole between the telescopic link, auxiliary stay pole's top is provided with the second gyro wheel.
Furthermore, the auxiliary support rod comprises a fixed rod and a rotating rod, the fixed rod is fixedly connected to the main frame, and the top end of the rotating rod is connected with the second roller;
the fixed rod is provided with two first waist-shaped holes which are arranged side by side, and the rotating rod is provided with a second waist-shaped hole; the second waist-shaped hole is matched with the two first waist-shaped holes and is connected and fastened through a bolt assembly.
Furthermore, the radian of the main frame is 80 degrees so as to meet the walking requirement of the outer wall of the pipe diameter with the pipe diameter specification of DN 500-DN 1400; and a gap layer is arranged in the middle of the main frame to reduce the self weight.
Compared with the prior art, the invention has the beneficial technical effects that:
the pay-off walking device for laying the cable on the outer wall of the pipeline can automatically walk in an interlayer between the pipeline and a roadway, and can complete pay-off work, so that the situation that the cable is manually paved on the outer wall of the pipeline in a climbing manner is avoided, the risk probability of harm of constructors is reduced, and the work efficiency of pay-off construction of a jacking pipe is effectively improved.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic structural view of a pay-off running gear of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of the main support apparatus of the present invention;
FIG. 4 is a schematic view of the rotary pay-off device of the present invention;
FIG. 5 is a schematic view of the auxiliary support rod according to the present invention;
FIG. 6 is a front view of the present invention in use;
fig. 7 is a side view of the present invention in use.
Description of reference numerals: 1. a main frame; 2. a four-wheel drive device; 201. a drive wheel; 202. a base; 203. mounting hole sites; 3. a power supply device; 301. a power supply housing; 302. a lithium battery; 4. a main support device; 401. a telescopic rod; 402. a first roller; 5. rotating the pay-off device; 501. paying off a motor; 502. paying off a tray; 503. a wire loop; 6. an illumination device; 7. a camera device; 8. a wireless communication control module; 9. an auxiliary support bar; 901. fixing the rod; 901-1, a first waist-shaped hole; 902. rotating the rod; 902-1, a second waist-shaped hole; 10. a second roller; 11. a roadway; 12. a pipeline; 13. a cable.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, the present embodiment discloses a paying-off running gear for laying cables on the outer wall of a pipeline, which includes a main frame 1 with a certain radian, wherein the radian of the main frame 1 is 80 ° in order to meet the running requirement of the outer wall of a pipe diameter with the pipe diameter specification of DN 500-DN 1400; and a space layer is provided in the middle of the main frame 1 to reduce self-weight. The concave surface of the main frame 1 is provided with a four-wheel drive device 2 with adjustable wheel track to adapt to pipelines with different diameters, and the four-wheel drive device 2 is tightly attached to the outer wall of the pipeline 12 to drive the walking; the convex surface of the main frame 1 is provided with a power supply device 3, a main support device 4, and a rotary pay-off device 5.
As shown in fig. 1 and 2, the four-wheel drive device 2 includes four driving wheels 201 uniformly distributed, the driving wheels 201 adopt a driving structure of an integrated motor and tire, a base 202 is disposed on the top of each driving wheel 201, a plurality of mounting holes 203 for adjusting two transverse adjacent wheel distances are disposed on the concave surface of the main frame 1, and mounting bolts on the base 202 are in threaded connection with the corresponding mounting holes 203. The track width can be adjusted to adapt to different pipe diameters, so that each driving wheel 201 is tightly attached to the outer wall of the pipeline 12.
As shown in fig. 3, the main supporting device 4 includes four evenly distributed telescopic rods 401, the lower ends of the telescopic rods 401 are welded and fixed with the convex surface of the main frame 1, and the upper ends of the telescopic rods 401 are provided with first rollers 402. In this embodiment, the telescopic rod 401 is an electric push rod.
As shown in fig. 4, the rotary pay-off device 5 includes a pay-off motor 501 mounted on the convex surface of the main frame 1, a pay-off tray 502 is arranged on a power output shaft of the pay-off motor 501, the coiled cable 13 is placed on the pay-off tray 502, a wire guiding ring 503 is arranged behind the pay-off tray 502, the wire guiding ring 503 is connected to the main frame 1 through a bracket, the cable 13 in the pay-off tray 502 penetrates through the wire guiding ring 503, and the wire guiding ring 503 plays a role in stabilizing pay-off.
The power supply device 3 includes a power supply case 301 provided on the main frame 1, and a lithium battery 302 for supplying power is placed in the power supply case 301. Lithium battery 302 provides power to the components in the device. The front of the power supply shell 301 is provided with an illuminating device 6 and an image pick-up device 7; the main frame 1 is provided with a wireless communication control module 8, and the illuminating device 6, the camera device 7, the driving wheel 201 and the electric push rod of the pay-off motor 501 are electrically connected with the wireless communication control module 8. The wireless communication control module 8 receives a radio signal of an external remote control device and controls the actions of the components.
The camera device 7 is arranged between the two lighting devices 6, the lighting devices 6 are composed of a left 10W L ED lamp and a right 10W L ED lamp and provide lighting for the camera device, the camera device 7 can perform real-time camera shooting and video storage functions, and the information of the internal space of the jacking pipe is provided for inspectors through the wireless signal transmission device.
As shown in fig. 1 and 5, an auxiliary support rod 9 with an adjustable inclination angle is disposed between two telescopic rods 401 located on the same side, and a second roller 10 is disposed on the top of the auxiliary support rod 9. Specifically, the auxiliary support rod 9 comprises a fixing rod 901 and a rotating rod 902, the fixing rod 901 is fixedly connected to the main frame 1, and the top end of the rotating rod 902 is connected with the second roller 10; the fixed rod 901 is provided with two first waist-shaped holes 901-1 which are arranged side by side, and the rotating rod 902 is provided with a second waist-shaped hole 902-1; the second kidney-shaped hole 902-1 is matched with the two first kidney-shaped holes 901-1 and is connected and fastened through a bolt assembly. The position and height of the second roller 10 are adjusted to match the main support device 4 by adjusting the matching position of the second waist-shaped hole 902-1 and the two first waist-shaped holes 901-1, so as to play a role of auxiliary support.
As shown in fig. 6 and 7, the action process of the present invention is as follows:
firstly, the four-wheel drive device is placed in an interlayer between a roadway 11 and a pipeline 12, the four-wheel drive device 2 is tightly attached to the outer wall of the pipeline 12 and drives the whole device to move forward, a first roller 402 positioned at the top end of an expansion rod 401 is propped against the inner wall of the roadway 11 to prevent the whole device from deviating in the advancing process, and meanwhile, a second roller 10 positioned at the top of an auxiliary support rod 9 is propped against the inner wall of the roadway 11 to further prevent the whole device from deviating. In the advancing process of the whole device, the paying-off motor 501 drives the paying-off tray 502 to rotate to complete paying-off work along the length direction of the outer wall of the pipeline 12.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (8)
1. The paying-off walking device for laying cables on the outer wall of the pipeline is characterized by comprising a main frame (1) with a certain radian, wherein a four-wheel drive device (2) with an adjustable wheel track to adapt to pipelines with different diameters is arranged on the concave surface of the main frame (1), and the four-wheel drive device (2) is tightly attached to the outer wall of the pipeline to drive and walk; the convex surface of the main frame (1) is provided with a power supply device (3), a main supporting device (4) and a rotary pay-off device (5);
the main supporting device (4) comprises four uniformly distributed telescopic rods (401), the lower ends of the telescopic rods (401) are fixedly connected with the convex surface of the main frame (1), and the upper ends of the telescopic rods (401) are provided with first rollers (402);
rotatory pay-off (5) are including setting up pay-off motor (501) on the main frame (1) convex surface, be provided with unwrapping wire tray (502) on the power output shaft of pay-off motor (501), the rear of unwrapping wire tray (502) is provided with wire ring (503).
2. The paying-off running gear for laying cables on the outer wall of a pipeline according to claim 1, wherein: the four-wheel drive device (2) comprises four uniformly distributed driving wheels (201), each driving wheel (201) is provided with a base (202) at the top, a plurality of mounting hole sites (203) used for adjusting the distance between two adjacent transverse wheels are arranged on the concave surface of the main frame (1), and mounting bolts on the bases (202) are in threaded connection with the corresponding mounting hole sites (203).
3. The paying-off running gear for laying cables on the outer wall of a pipeline according to claim 2, wherein: the power supply device (3) comprises a power supply housing (301) arranged on the main frame (1), wherein a lithium battery (302) for supplying power is placed in the power supply housing (301).
4. The paying-off running gear for laying cables on the outer wall of a pipeline according to claim 3, wherein: the front of the power supply shell (301) is provided with an illuminating device (6) and a camera device (7);
the wireless communication control module (8) is arranged on the main frame (1), and the illuminating device (6), the camera device (7), the driving wheel (201) and the paying-off motor (501) are electrically connected with the wireless communication control module (8).
5. The paying-off running gear for laying cables on the outer wall of a pipeline according to claim 4, wherein: the telescopic rod (401) adopts an electric push rod, and the electric push rod is electrically connected with the wireless communication control module (8).
6. The paying-off running gear for laying cables on the outer wall of a pipeline according to claim 1, wherein: be located two of homonymy be provided with inclination adjustable auxiliary stay pole (9) between telescopic link (401), the top of auxiliary stay pole (9) is provided with second gyro wheel (10).
7. The paying-off running gear for laying cables on the outer wall of a pipeline according to claim 6, wherein: the auxiliary supporting rod (9) comprises a fixing rod (901) and a rotating rod (902), the fixing rod (901) is fixedly connected to the main frame (1), and the top end of the rotating rod (902) is connected with the second roller (10);
two first waist-shaped holes (901-1) which are arranged side by side are formed in the fixed rod (901), and a second waist-shaped hole (902-1) is formed in the rotating rod (902); the second kidney-shaped hole (902-1) is matched with the two first kidney-shaped holes (901-1) and is connected and fastened through a bolt assembly.
8. The paying-off running gear for laying cables on the outer wall of a pipeline according to claim 1, wherein: the radian of the main frame (1) is 80 degrees so as to meet the walking requirement of the outer wall of the pipe diameter with the pipe diameter specification of DN 500-DN 1400; a gap layer is arranged in the middle of the main frame (1) to reduce self weight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010471791.1A CN111463720A (en) | 2020-05-29 | 2020-05-29 | Paying-off walking device for laying cable on outer wall of pipeline |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010471791.1A CN111463720A (en) | 2020-05-29 | 2020-05-29 | Paying-off walking device for laying cable on outer wall of pipeline |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111463720A true CN111463720A (en) | 2020-07-28 |
Family
ID=71678835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010471791.1A Pending CN111463720A (en) | 2020-05-29 | 2020-05-29 | Paying-off walking device for laying cable on outer wall of pipeline |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111463720A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113031184A (en) * | 2021-03-24 | 2021-06-25 | 刘祯祥 | Optical fiber embedding device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201742067U (en) * | 2010-07-07 | 2011-02-09 | 徐玥 | Vehicle applicable to constructions in pipeline |
CN110212461A (en) * | 2019-06-05 | 2019-09-06 | 合肥安力电力工程有限公司 | A kind of self-powered moving-wire cable poling coaster |
US20200091690A1 (en) * | 2018-09-14 | 2020-03-19 | Current Tools, Inc. | Cable puller |
CN211879989U (en) * | 2020-05-29 | 2020-11-06 | 唐山兴邦管道工程设备有限公司 | Paying-off walking device for laying cable on outer wall of pipeline |
-
2020
- 2020-05-29 CN CN202010471791.1A patent/CN111463720A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201742067U (en) * | 2010-07-07 | 2011-02-09 | 徐玥 | Vehicle applicable to constructions in pipeline |
US20200091690A1 (en) * | 2018-09-14 | 2020-03-19 | Current Tools, Inc. | Cable puller |
CN110212461A (en) * | 2019-06-05 | 2019-09-06 | 合肥安力电力工程有限公司 | A kind of self-powered moving-wire cable poling coaster |
CN211879989U (en) * | 2020-05-29 | 2020-11-06 | 唐山兴邦管道工程设备有限公司 | Paying-off walking device for laying cable on outer wall of pipeline |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113031184A (en) * | 2021-03-24 | 2021-06-25 | 刘祯祥 | Optical fiber embedding device |
CN113031184B (en) * | 2021-03-24 | 2022-12-23 | 国网甘肃省电力公司武威供电公司 | Optical fiber embedding device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111648797B (en) | Hydraulic tunnel pipeline installation trolley, installation system and installation method | |
CN211879989U (en) | Paying-off walking device for laying cable on outer wall of pipeline | |
CN111463720A (en) | Paying-off walking device for laying cable on outer wall of pipeline | |
CN113794163A (en) | Cable laying mechanism in power construction | |
CN211474127U (en) | Shield constructs portal reinforced structure for track traffic | |
CN113586142A (en) | Movable submerged pump station for emergency rescue and drainage for mine | |
CN212776268U (en) | Pipeline robot | |
CN201651787U (en) | Image pick-up detection device for underground pipeline | |
CN114704709B (en) | Pipeline endoscopic detection and tracing device | |
CN102155627A (en) | Underground pipeline image pickup detection device | |
CN111911174A (en) | Remote control type underwater soft foundation tunnel excavating device | |
CN209354856U (en) | A kind of photocuring technology pipe-line equipment | |
CN216892730U (en) | Automatic moving device for spraying mortar on inner wall of drainage pipeline | |
CN215160438U (en) | Municipal administration pipe jacking pipe coupling hoist device | |
CN216520285U (en) | Traction device is restoreed to non-excavation pipeline inside lining | |
CN213541665U (en) | Be used for prosthetic equipment of city underground piping inside lining | |
CN114412352A (en) | Stable drilling machine for spiral earth anchor | |
CN112050023A (en) | Be used for prosthetic equipment of city underground piping inside lining | |
CN212929170U (en) | Be used for city underground leaking stoppage robot | |
CN201610078U (en) | Automatic creeping bogie for detection in a pipeline | |
CN113479765B (en) | Installation and transportation device for nodular cast iron pipe | |
CN216741345U (en) | Stable drilling machine for spiral earth anchor drill | |
CN216043730U (en) | Low-disturbance pipe laying machine with dustproof and noise-reducing functions | |
CN215410838U (en) | Extension type pipeline inspection robot | |
CN214298965U (en) | Wireless control hoisting device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |