CN219912231U - Device for detecting inner wall of petroleum pipeline - Google Patents
Device for detecting inner wall of petroleum pipeline Download PDFInfo
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- CN219912231U CN219912231U CN202321601064.8U CN202321601064U CN219912231U CN 219912231 U CN219912231 U CN 219912231U CN 202321601064 U CN202321601064 U CN 202321601064U CN 219912231 U CN219912231 U CN 219912231U
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- petroleum pipeline
- support arm
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- 239000003208 petroleum Substances 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 239000000523 sample Substances 0.000 claims abstract description 9
- 235000014676 Phragmites communis Nutrition 0.000 claims description 20
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 16
- 239000003921 oil Substances 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model belongs to the technical field of pipeline detection, and particularly relates to a device for detecting the inner wall of a petroleum pipeline, which comprises a main shell, wherein an ultrasonic probe is arranged on a connecting sleeve connected with the main shell, three groups of connecting seats I are circumferentially arranged on two sides of the main shell, a connecting seat II is arranged on the main shell on two sides of the connecting seat I, the connecting seat I and the connecting seat II are respectively and rotatably connected with one ends of a main supporting arm and an auxiliary supporting arm, the other end of the auxiliary supporting arm is rotatably connected with a connecting seat III arranged at the middle end of the main supporting arm, the middle end of the main supporting arm is provided with a connecting seat IV, the connecting seat IV is rotatably connected with two ends of an oil cylinder, the other end of the main supporting arm is connected with a tail rod through an elastic connecting component, and the end part of the tail rod is provided with an electric driving wheel. The oil cylinder can stretch and retract to drive the plurality of main supporting arms arranged in the circumferential direction to rotate so as to enable the electric driving wheel to be pressed on the inner walls of pipelines with different inner diameters, and the device can stably move in the pipelines for measurement by being matched with the elastic support of the elastic connecting assembly.
Description
Technical Field
The utility model belongs to the technical field of pipeline detection, and particularly relates to a device for detecting the inner wall of a petroleum pipeline.
Background
Petroleum, also known as crude oil, is a viscous, dark brown (sometimes somewhat green) liquid, and is stored in the upper part of the crust, and is composed of a mixture of different hydrocarbons, the main component of which is alkane, and in addition, the petroleum contains sulfur, oxygen, nitrogen, phosphorus, vanadium and other elements. Petroleum is mainly used as fuel oil and gasoline, which constitute one of the most important primary energy sources in the world, and is also a raw material for many chemical industry products such as solutions, fertilizers, pesticides, plastics, and the like. In the petrochemical industry field, the difficulty of pipeline construction often depends on geological structure complexity, and the quality of anticorrosive quality has decided the life of pipeline. In particular, for the pipeline for conveying oil and gas, the inner wall of the pipeline may be corroded due to the fact that the conveyed medium is more corrosive. The pipeline detection technology is one of important guarantee links of the oil transportation in different places, and plays a vital role in the safe transportation of the oil.
The utility model patent with the authorized bulletin number of CN212008440U discloses old petroleum pipe inner wall coating detection equipment, which comprises a carrier, wherein the bottom of the carrier is provided with an active rotating shaft and a passive rotating shaft, the left end and the right end of the active rotating shaft and the left end and the right end of the passive rotating shaft are respectively provided with rollers, the carrier is provided with a driving mechanism in transmission connection with the active rotating shaft, the front end of the carrier is provided with a rotating motor, the rotating shaft of the rotating motor is fixedly provided with a rotating connecting rod, the two ends of the rotating connecting rod are provided with ultrasonic detection sensors, four corners of the carrier are respectively provided with a stabilizing support, each stabilizing support is provided with an auxiliary roller in rolling contact with the petroleum pipe inner wall, and the coating detection equipment is driven by the self-driven carrier to carry out ultrasonic detection on the coating defect position of the petroleum pipe inner wall through the ultrasonic detection sensors at the two ends of the rotating connecting rod.
However, when detecting the inner wall of the petroleum pipe with a vertical section or even a horizontal installation inclination angle with a large angle, the device cannot stably move in pipelines with different inner diameters under the support of a carrier to perform efficient detection work.
Disclosure of Invention
In view of the above problems, an object of the present utility model is to: the utility model provides a device for petroleum pipeline inner wall detects, solves traditional petroleum pipeline inner wall detection device and detects the petroleum pipeline inner wall of vertical section when, and the device can not be under the support of carrier in the pipeline of different internal diameters stable removal and detect the problem of work.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a device for petroleum pipeline inner wall detects, includes the main casing body, install the ultrasonic probe on the adapter sleeve that the main casing body is connected, three group's connecting seat first is installed for a set of circumference to the side of main casing body two by two, install connecting seat second on the main casing body of connecting seat both sides, connecting seat first and connecting seat second rotate the one end of connecting main support arm and auxiliary support arm respectively, the other end of auxiliary support arm rotates the connecting seat third of installing at main support arm middle-end, the middle-end of main support arm is provided with the connecting seat fourth, the both ends of connecting cylinder are rotated to the connecting seat fourth, the other end of main support arm is connected with the tailstock through elastic connection subassembly, electric drive wheel is installed to the tip of tailstock.
The beneficial effects of the utility model are as follows: the oil cylinder can stretch and retract to drive the plurality of main supporting arms arranged in the circumferential direction to rotate so as to enable the electric driving wheel to be pressed on the inner walls of pipelines with different inner diameters, and the device can stably move in the pipelines for measurement by being matched with the elastic support of the elastic connecting assembly.
In order to ensure that the electric driving wheel can be stably pressed on the inner wall of the pipeline under the change of the thickness of the attachment on the inner wall of the pipeline;
as a further improvement of the above technical scheme: the elastic connection assembly comprises a first connector and a second connector which are arranged on the side surfaces of the main support arm and the tail rod, the second connector and the second connector are respectively connected with two ends of the reed, and the main support arm is connected with one end of the tail rod in a rotating mode through a rotating shaft in the elastic connection assembly.
The beneficial effects of this improvement are: the tail rod rotates under the elastic support provided by the reed, so that the electric driving wheel can still be stably pressed on the inner wall of the pipeline under the change of the thickness of the attachment on the inner wall of the pipeline.
In order to avoid the reed, the main supporting arm and the tail rod from being scratched;
as a further improvement of the above technical scheme: the surfaces of the reed do not contact the surfaces of the main support arm and the tail rod.
The beneficial effects of this improvement are: when the reed deforms, the reed can avoid rubbing with the main supporting arm and the tail rod.
In order for the reed to provide effective resilient support;
as a further improvement of the above technical scheme: the reed has a thin plate structure having elasticity in a radial direction of the rotation shaft.
The beneficial effects of this improvement are: the reed can be preloaded to release elastic energy storage, so that the electric driving wheel is ensured to be tightly pressed on the inner wall of the pipeline.
In order to ensure the use safety of the device;
as a further improvement of the above technical scheme: the top of main casing is provided with the connection rings, connection rings tie-down is connected with the wire rod subassembly.
The beneficial effects of this improvement are: the connecting hanging ring can be fastened and hung to connect the wire component, so that the device cannot be taken out of the pipeline after power failure.
In order to avoid the device main body from influencing the measuring effect of the ultrasonic probe;
as a further improvement of the above technical scheme: when the oil cylinder extends to the stroke end point, the electric driving wheel is positioned on the upper side of the ultrasonic detection head.
The beneficial effects of this improvement are: the ultrasonic probe can be measured independently of the moving motorized drive wheel.
A support driving device for stabilizing the electric driving wheel;
as a further improvement of the above technical scheme: the main shell is of a circular tube structure, and the first connecting seat and the second connecting seat are arranged in an equal sequence around the circumference of the shaft by taking the axis of the main shell.
The beneficial effects of this improvement are: the electric driving wheels arranged in circumferential order can stably support the driving device to move.
In order to improve the supporting strength of the main supporting arm;
as a further improvement of the above technical scheme: the third connecting seat and the fourth connecting seat are adjacently arranged on two end faces of the main supporting arm, which are opposite.
The beneficial effects of this improvement are: the auxiliary supporting arm can provide support for the middle end of the main supporting arm, so that the supporting strength of the main supporting arm is improved.
To ensure stability of movement of the device;
as a further improvement of the above technical scheme: the axial direction of the wheel axle in the electric driving wheel is parallel to the axial direction of the pin shafts arranged on the first connecting seat, the second connecting seat, the third connecting seat and the fourth connecting seat.
The beneficial effects of this improvement are: the whole stress of the device is even, and the device can stably move in the pipeline.
None of the parts of the device are the same as or can be implemented using prior art.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is an enlarged view of A in the present utility model;
FIG. 3 is a schematic diagram of a second embodiment of the present utility model;
FIG. 4 is a schematic diagram of a third embodiment of the present utility model;
in the figure: 1. a main housing; 2. the connecting hanging ring; 3. a wire assembly; 4. a first connecting seat; 5. a main support arm; 6. a second connecting seat; 7. a secondary support arm; 8. a third connecting seat; 9. an oil cylinder; 10. an elastic connection assembly; 101. a first connector; 102. a reed; 103. a rotating shaft; 104. a second connector; 11. tail rod; 12. an electric drive wheel; 13. a connection sleeve; 14. an ultrasonic probe; 15. an internally threaded sleeve; 16. a screw rod; 17. and a connecting seat IV.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.
Example 1:
as shown in fig. 1-2: the device for detecting the inner wall of the petroleum pipeline comprises a main shell 1, wherein an ultrasonic probe 14 is arranged on a connecting sleeve 13 connected with the main shell 1, three groups of connecting seats I4 are circumferentially arranged on two sides of the main shell 1, a connecting seat II 6 is arranged on the main shell 1 on two sides of the connecting seat I4, one ends of a main supporting arm 5 and an auxiliary supporting arm 7 are respectively and rotatably connected with the connecting seat I4 and the connecting seat II 6, the other end of the auxiliary supporting arm 7 is rotatably connected with a connecting seat III 8 arranged at the middle end of the main supporting arm 5, a connecting seat IV 17 is arranged at the middle end of the main supporting arm 5, the connecting seat IV 17 is rotatably connected with two ends of an oil cylinder 9, the other end of the main supporting arm 5 is connected with a tail rod 11 through an elastic connecting component 10, the end part of the tail rod 11 is provided with an electric driving wheel 12, the oil cylinder 9 can telescopically drive a plurality of main supporting arms 5 which are circumferentially arranged to rotate so as to enable the electric driving wheel 12 to be pressed on the inner wall of a pipeline with different inner diameters, and the elastic support of the elastic connecting assembly 10 is matched to enable the device to stably move in the pipeline for measurement, the elastic connecting assembly 10 comprises a first connector 101 and a second connector 104 which are arranged on the sides of the main supporting arms 5 and the tail rod 11, the second connector 104 and the second connector 104 are respectively connected with two ends of the reed 102, the main supporting arms 5 rotate to be connected with one end of the tail rod 11 through a rotating shaft 103 in the elastic connecting assembly 10, the tail rod 11 rotates under the elastic support provided by the reed 102, so that the electric driving wheel 12 can still be stably pressed on the inner wall of the pipeline under the change of the thickness of attachments on the inner wall of the pipeline, the surface of the reed 102 does not contact the main supporting arms 5 and the surface of the tail rod 11, and the reed 102 can be prevented from being deformed with the main supporting arms 5, the tail rod 11 is scratched, the reed 102 is of an elastic sheet structure in the radial direction of the rotating shaft 103, the reed 102 can be preloaded to release elastic energy storage, the electric driving wheel 12 is tightly pressed on the inner wall of a pipeline, the connecting hanging ring 2 is arranged at the top end of the main shell 1, the connecting hanging ring 2 is connected with the wire rod component 3 in a hanging mode, the connecting hanging ring 2 can be connected with the wire rod component 3 in a hanging mode to avoid the situation that the wire rod component 3 cannot be taken out in the pipeline after the device is powered off, when the oil cylinder 9 stretches to the end of travel, the electric driving wheel 12 is positioned on the upper side of the ultrasonic detecting head 14, the ultrasonic detecting head 14 can not be influenced by the movable electric driving wheel 12 and then is measured, the main shell 1 is of a circular tube structure, the first connecting seat 4 and the second connecting seat 6 are arranged in an axial direction surrounding the axial direction of the main shell 1 in an equal order, the electric driving wheel 12 arranged in the circumferential direction of the equal order can stably support the driving device, the third connecting seat 8 and the fourth connecting seat 17 are adjacently arranged on two opposite end faces of the main supporting arm 5, the auxiliary supporting arm 7 can provide a supporting arm 5, the second supporting arm 5 can be further, the electric driving wheel 12 can be stably connected in the axial direction of the main supporting seat 8 and the axial direction of the main supporting arm 5 can be stably arranged in the axial direction of the main supporting seat, and the fourth connecting seat can be connected with the axial seat 6.
Example 2:
as shown in fig. 3: the utility model provides a device for petroleum pipeline inner wall detects, includes main casing 1, install ultrasonic probe 14 on the adapter sleeve 13 that main casing 1 connects, four groups connecting seat one 4 are installed for a set of circumference to the side of main casing 1 two by two, install connecting seat two 6 on the main casing 1 of connecting seat one 4 both sides, connecting seat one 4 and connecting seat two 6 rotate the one end of connecting main support arm 5 and auxiliary support arm 7 respectively, the other end rotation of auxiliary support arm 7 is connected the connecting seat three 8 of installing at main support arm 5 middle-end, the middle-end of main support arm 5 is provided with connecting seat four 17, connecting seat four 17 rotates the both ends of connecting cylinder 9, the other end of main support arm 5 is connected with tail boom 11 through elastic connection subassembly 10, electric drive wheel 12 is installed to the tip of tail boom 11, and a plurality of main support arms 5 rotation that cylinder 9 scalable drive circumference set up and then make electric drive wheel 12 compress tightly on the inner wall of different internal diameters, and the elastic support of cooperation elastic connection subassembly 10 makes the device can be stable in the inner wall of main support arm 5, and the setting up to the stable device can be provided for the device of four to the even measurement of the main support arm that can be set up to the steady.
Example 3:
as shown in fig. 4: the utility model provides a device for petroleum pipeline inner wall detects, includes main casing 1, the bottom of main casing 1 is connected with internal thread sleeve 15, the inboard threaded connection of internal thread sleeve 15 has lead screw 16, ultrasonic detection head 14 is installed to the bottom of lead screw 16, three group's connecting seat one 4 is installed to the side of main casing 1 for a set of circumference, install connecting seat two 6 on the main casing 1 of connecting seat one 4 both sides, connecting seat one 4 and connecting seat two 6 rotate the one end of connecting main support arm 5 and auxiliary support arm 7 respectively, the other end rotation connection of auxiliary support arm 7 installs the connecting seat three 8 at main support arm 5 middle-end, the middle-end of main support arm 5 is provided with connecting seat four 17, connecting seat four 17 rotate the both ends of connecting cylinder 9, the other end of main support arm 5 is connected with tail boom 11 through elastic connection subassembly 10, electric drive wheel 12 is installed to the tip of tail boom 11, and a plurality of main support arms 5 rotation that the telescopic drive circumference set up make electric drive wheel 12 compress tightly on the different inner walls of pipeline, and can reduce the device in the idle running space through the elastic connection subassembly 15 when the screw 15 is required to be reduced in the idle device.
The working principle of the technical scheme is as follows: firstly, placing the device into the inner side of a pipeline, then controlling an oil cylinder 9 to shrink, enabling the oil cylinder 9 to drive a main supporting arm 5 to rotate by taking a first connecting seat 4 as a fulcrum through a fourth connecting seat 17, enabling the other end of the main supporting arm 5 to rotate towards the direction of the pipeline wall through a tail rod 11 through an elastic connecting assembly 10, further enabling an electric driving wheel 12 to be tightly pressed on the pipeline wall, at the moment, enabling the tail rod 11 to rotate relatively to the main supporting arm 5 by taking a rotating shaft 103 as a supporting shaft, further enabling a reed 102 to generate smaller elastic deformation, and guaranteeing stable movement of the device through the fact that the electric driving wheel 12 can be tightly pressed on the inner wall of the pipeline under the change of the thickness of attachments on the inner wall of the pipeline in the moving process of the device; simultaneously, along with the rotation of the main supporting arm 5, the angles between the auxiliary supporting arm 7 and the main shell 1 and between the auxiliary supporting arm 7 and the main supporting arm 5 are changed, and the auxiliary supporting arm provides support for the main supporting arm 5, so that the supporting strength of the main supporting arm 5 is improved; the operator then activates the motorized drive wheel 12 to cause the device as a whole to move steadily within the pipeline under the drive of the motorized drive wheel 12 and to perform pipeline inner wall inspection via the ultrasonic probe 14 mounted on the end of the connection sleeve 13.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of the utility model, and it is noted that there is virtually no limit to the specific structure which may be imposed by those skilled in the art without departing from the spirit of the utility model, and that modifications, adaptations, or variations of the foregoing features may be combined in a suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.
Claims (9)
1. A device for petroleum pipeline inner wall detects, its characterized in that: including main casing (1), install ultrasonic probe (14) on adapter sleeve (13) that main casing (1) connects, three group's connecting seat (4) are installed for a set of circumference to side pair of main casing (1), install connecting seat two (6) on main casing (1) of connecting seat one (4) both sides, connecting seat one (4) and connecting seat two (6) rotate the one end of connecting main support arm (5) and auxiliary support arm (7) respectively, the other end rotation connection of auxiliary support arm (7) installs connecting seat three (8) at main support arm (5) middle-end, the middle-end of main support arm (5) is provided with connecting seat four (17), connecting seat four (17) rotate the both ends of connecting cylinder (9), the other end of main support arm (5) is connected with tailstock (11) through elastic connection subassembly (10), electric drive wheel (12) are installed to the tip of tailstock (11).
2. A device for detecting the inner wall of a petroleum pipeline according to claim 1, wherein: the elastic connection assembly (10) comprises a first connector (101) and a second connector (104) which are arranged on the side surfaces of the main support arm (5) and the tail rod (11), the second connector (104) and the second connector (104) are respectively connected with two ends of the reed (102), and the main support arm (5) rotates to be connected with one end of the tail rod (11) through a rotating shaft (103) in the elastic connection assembly (10).
3. A device for detecting the inner wall of a petroleum pipeline according to claim 2, characterized in that: the surface of the reed (102) is not contacted with the surfaces of the main supporting arm (5) and the tail rod (11).
4. A device for detecting the inner wall of a petroleum pipeline according to claim 2, characterized in that: the reed (102) has a thin plate structure having elasticity in the radial direction of the rotation shaft (103).
5. A device for detecting the inner wall of a petroleum pipeline according to claim 1, wherein: the top of main casing (1) is provided with connection rings (2), connection rings (2) are tethered and connected with wire rod subassembly (3).
6. A device for detecting the inner wall of a petroleum pipeline according to claim 1, wherein: when the oil cylinder (9) extends to the end of the stroke, the electric driving wheel (12) is positioned on the upper side of the ultrasonic detection head (14).
7. A device for detecting the inner wall of a petroleum pipeline according to claim 1, wherein: the main shell (1) is of a circular tube type structure, and the first connecting seat (4) and the second connecting seat (6) are arranged in an equal sequence around the circumference of the shaft by taking the axis of the main shell (1).
8. A device for detecting the inner wall of a petroleum pipeline according to claim 1, wherein: the third connecting seat (8) and the fourth connecting seat (17) are adjacently arranged on two opposite end surfaces of the main supporting arm (5).
9. A device for detecting the inner wall of a petroleum pipeline according to claim 1, wherein: the axial direction of the wheel axle in the electric driving wheel (12) is parallel to the axial direction of the pin shafts arranged on the first connecting seat (4), the second connecting seat (6), the third connecting seat (8) and the fourth connecting seat (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321601064.8U CN219912231U (en) | 2023-06-21 | 2023-06-21 | Device for detecting inner wall of petroleum pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321601064.8U CN219912231U (en) | 2023-06-21 | 2023-06-21 | Device for detecting inner wall of petroleum pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219912231U true CN219912231U (en) | 2023-10-27 |
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ID=88467470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321601064.8U Active CN219912231U (en) | 2023-06-21 | 2023-06-21 | Device for detecting inner wall of petroleum pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219912231U (en) |
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2023
- 2023-06-21 CN CN202321601064.8U patent/CN219912231U/en active Active
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