CN118499616B - Pipeline detection device - Google Patents
Pipeline detection device Download PDFInfo
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- CN118499616B CN118499616B CN202410970085.XA CN202410970085A CN118499616B CN 118499616 B CN118499616 B CN 118499616B CN 202410970085 A CN202410970085 A CN 202410970085A CN 118499616 B CN118499616 B CN 118499616B
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- 238000001514 detection method Methods 0.000 title claims abstract description 72
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 238000001179 sorption measurement Methods 0.000 claims description 21
- 238000001125 extrusion Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 16
- 238000007689 inspection Methods 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 39
- 239000002775 capsule Substances 0.000 description 49
- 210000005056 cell body Anatomy 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/40—Constructional aspects of the body
- F16L55/44—Constructional aspects of the body expandable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/30—Inspecting, measuring or testing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a pipeline detection device, which belongs to the technical field of pipeline detection and comprises an outer pipe, wherein a middle expansion bag body is connected to the inside of the outer pipe, the middle expansion bag body is cylindrical, two side expansion bag bodies are fixedly connected to the two ends of the middle expansion bag body, a bidirectional air pump is fixedly connected to the inside of the middle expansion bag body, an air inlet of the bidirectional air pump is communicated with a first multi-way flow dividing valve, in the pipeline detection process, the two side expansion bag bodies are expanded first to enable the two side expansion bag bodies to form a plugging space in cooperation with the outer pipe, and a detection sensor is driven to detect the outer pipe in the designated plugging space through the expansion of the expansion middle expansion bag body, so that the expansion degree of the middle expansion bag body is more complete in the detection process of the designated plugging space, the condition that part of the detection sensor cannot be completely attached to the inner wall of the outer pipe cannot be caused, and the detection accuracy is improved.
Description
Technical Field
The invention relates to the technical field of pipeline detection, in particular to a pipeline detection device.
Background
With the rapid development of industrialization and urban industry, pipeline systems play a vital role in modern society, and they take on the tasks of transporting liquid, gas, solid materials and the like, and are vital for guaranteeing energy supply, water resource distribution, waste treatment and the like. However, due to the complexity and long-term operation of the piping system, problems with corrosion, leakage, clogging, and deformation of the piping may occur.
The patent name is: a pipeline detection device, authorize the bulletin number to be: the patent of CN111207268B proposes that the existing ultrasonic detection devices in the pipeline are all designed by adopting a rigid structure, and when the rigid ultrasonic detection devices detect in the pipeline, the rigid ultrasonic detection devices encounter a complex pipeline structure, are easy to block and are difficult to reliably pass; the rigidity detecting unit is normally pressed against the inner wall of the detected pipeline by using a spring and the like, the applied force is single-point and unidirectional, when facing a complex curved surface, the joint between the detecting unit and the detected pipeline is unreliable, the flexible joint is difficult to realize, reliable detection cannot be realized, the detection precision is low, the detection efficiency is low, the rigidity detecting unit only needs to fill the expansion element with fluid when detecting by adopting the expansion unit capable of expanding and contracting as a main body of the device, the sensing element for detecting is extruded on the inner wall of the pipeline to be detected, and the control component receives detection data sent by the sensing element, so that the whole detecting process is completed, the flexibility of the detection environment with a relatively complex pipeline inner structure is good, but the expansion direction of the expansion unit is not fixed in the whole detecting process, the expansion unit can extend and expand in the pipeline, the condition that some detection sensors cannot be well jointed on the inner wall of the pipeline in the extending expansion process is caused, and only part of the sensors can be better jointed on the inner wall of the pipeline, and the detection integrity is poor.
Disclosure of Invention
The present invention is directed to a pipeline inspection device, which solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the pipeline detection device comprises an outer pipe, wherein a middle expansion bag body is connected to the inner part of the outer pipe, the middle expansion bag body is cylindrical, two ends of the middle expansion bag body are fixedly connected with two expansion bag bodies, and an inflation structure is arranged in the middle expansion bag body;
The inflatable structure comprises a bidirectional air pump, the bidirectional air pump is fixedly connected to the inside of the middle inflatable bag body, a first multi-way flow dividing valve is communicated with an air inlet of the bidirectional air pump, a second multi-way flow dividing valve is communicated with an air outlet of the bidirectional air pump, two air outlets of the first multi-way flow dividing valve are communicated with first air pipes, one end of each first air pipe, which is far away from the first multi-way flow dividing valve, penetrates through the outer wall of the middle inflatable bag body and is communicated with the inflatable bag bodies on the two sides, an exhaust pipe is communicated with the outside of the second multi-way flow dividing valve, one end, which is far away from the second multi-way flow dividing valve, of each second multi-way flow dividing valve penetrates through the outer wall of the middle inflatable bag body, and a plurality of detection sensors are arranged on the outside of the middle inflatable bag body.
Preferably, the outside integrated into one piece of both sides inflation cell body has two closed loops, the inside integrated into one piece of closed loop has embedded adsorption ring, the outside intercommunication of second multichannel flow divider has two suction pipes, the one end that the second multichannel flow divider was kept away from to the suction pipe runs through respectively the outer wall of middle inflation cell body and both sides inflation cell body and with embedded adsorption ring is linked together, the outside intercommunication of embedded adsorption ring has a plurality of suction heads, a plurality of through-holes have been seted up to the outer wall of closed loop, a plurality of the suction head peg graft respectively in a plurality of the inside of through-hole, two closed loops cooperate both sides inflation cell body with the inner wall of outer tube forms the extrusion and seals the cavity.
Preferably, a plurality of elastic separation plates are integrally formed outside the closed ring, and the elastic separation plates divide the extrusion closed space into a plurality of negative pressure adsorption chambers.
Preferably, the outer walls of the two closed loops far away from the two ends of the middle expansion bag body are provided with water delivery pipes, and the air outlet of each water delivery pipe is fixedly provided with a one-way valve plate.
Preferably, the inside fixedly connected with four embedded sacs of intermediate inflation cell body, the outside intercommunication of first multichannel flow divider has four shunt tubes, four the shunt tubes keep away from the one end of first multichannel flow divider respectively with four embedded sacs are linked together.
Preferably, the outside of the expansion bag body at two sides is communicated with a discharge valve.
Preferably, the diameter of the outer wall of the two-side expansion capsule body is larger than that of the outer wall of the middle expansion capsule body.
Preferably, one side of the detection sensor far away from the middle expansion bag body is provided with an arc-shaped surface.
Preferably, the sealing ring comprises a plurality of rubber magnetic rings and a plurality of rubber extension rings, and the plurality of rubber magnetic rings and the plurality of rubber extension rings are mutually bonded and combined to form the sealing ring.
Preferably, the detection sensor is an ultrasonic sensor or an electromagnetic sensor.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, in the pipeline detection process, the two expansion bag bodies on two sides are expanded first, so that the two expansion bag bodies on two sides are matched with the outer pipe to form a plugging space, the detection sensor is driven to detect the outer pipe in the specified plugging space by expanding the expansion bag body in the middle, in the detection process, the expansion degree of the expansion bag body in the middle is more complete in the detection process of the specified plugging space, the condition that part of the detection sensor cannot be completely attached to the inner wall of the outer pipe is avoided, and the detection accuracy is improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic view of an elastic separator plate according to an embodiment of the present invention;
FIG. 4 is a schematic view showing an inflated state of the intermediate inflatable bladder according to an embodiment of the present invention;
FIG. 5 is a schematic view of the structure of an embedded adsorption ring and suction pipe according to an embodiment of the present invention;
FIG. 6 is a schematic view of an embedded capsule according to an embodiment of the present invention;
FIG. 7 is an enlarged schematic view of the area A in FIG. 1 according to an embodiment of the present invention;
FIG. 8 is an enlarged schematic view of the area B in FIG. 2 according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of the structure of the check valve plate and the water pipe in the embodiment of the invention;
FIG. 10 is a schematic diagram of a detecting sensor according to an embodiment of the present invention;
FIG. 11 is a schematic view of the structure of a rubber magnetic ring and a rubber extension ring according to an embodiment of the present invention.
In the figure: 100. an outer tube; 101. a middle inflation bladder; 102. two sides of the inflatable bag body; 103. a two-way air pump; 104. a first multi-way diverter valve; 105. a second multi-way diverter valve; 106. a first gas pipe; 107. a detection sensor; 108. an exhaust pipe; 200. a closed loop; 201. an adsorption ring is embedded; 202. a suction pipe; 203. a suction head; 204. a through hole; 300. an elastic partition plate; 400. embedding a capsule body; 401. a shunt; 500. a discharge valve; 600. a one-way valve plate; 601. a water pipe; 700. a rubber magnetic ring; 701. rubber extension ring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the invention, the middle expansion bag body 101 with the detection sensor 107 is placed inside the outer tube 100, the middle expansion bag body 101 moves inside the tube by utilizing the expansion and polycondensation stroke, and the two side expansion bag bodies 102 are used for limiting the transverse expansion space of the middle expansion bag body 101 in the detection process, so that the middle expansion bag body 101 expands in a designated space in the expansion process, and the situation that part of the detection sensor 107 cannot be well attached to the inner wall of the outer tube 100 due to the expansion of the transverse expansion is reduced.
In the first embodiment, as shown in fig. 1, the pipeline detection device of the application comprises an outer pipe 100, wherein a middle expansion bag body 101 is connected inside the outer pipe 100, the middle expansion bag body 101 is cylindrical, two ends of the middle expansion bag body 101 are fixedly connected with two expansion bag bodies 102, and an inflation structure is arranged inside the middle expansion bag body 101;
Wherein, the inflatable structure includes two-way air pump 103, two-way air pump 103 fixed connection is in the inside of middle inflation cell body 101, two-way air pump 103's air inlet intercommunication has first multichannel flow divider 104, two of them gas outlets intercommunication of two-way air pump 103 have first gas-supply pipe 106, first gas-supply pipe 106 is kept away from the one end of first multichannel flow divider 104 and is run through the outer wall of middle inflation cell body 101 and be linked together with both sides inflation cell body 102, the outside intercommunication of second multichannel flow divider 105 has blast pipe 108, the one end that the blast pipe 108 kept away from second multichannel flow divider 105 runs through the outer wall of middle inflation cell body 101, the externally mounted of middle inflation cell body 101 has a plurality of detection sensor 107.
Specifically, in the use process, a user can place the middle expansion bag body 101 and the expansion bag bodies 102 at two sides into the outer tube 100, a main controller and a signal transceiver for controlling the air inlet and the air outlet of the bidirectional air pump 103 are installed in the middle expansion bag body 101, the signal transceiver is matched with the main controller to remotely control the opening and the closing of the bidirectional air pump 103 in the outside, the bidirectional air pump 103 is a bidirectional pump body capable of performing air inlet and air outlet bidirectional strokes, and the model is as follows: DSV90.
Specifically, after the middle expansion bladder 101 and the two side expansion bladders 102 are placed inside the outer tube 100, a worker can inject air into the first multi-way diverter valve 104 by starting the two-way air pump 103 outside and convey air into the two side expansion bladders 102 located at the front end through the first multi-way diverter valve 104 in cooperation with the first air pipe 106, so that one of the two side expansion bladders 102 located at the front end position inside the pipeline is expanded first, after the two side expansion bladders 102 are expanded to be in contact with the inner wall of the pipeline and a certain clamping and positioning effect is generated, the air injection channel of the two side expansion bladders 102 located at the front end position of the first multi-way diverter valve 104 and one of the first air pipe 106 is closed, after the air injection channel is closed, the two side expansion bladders 102 expanded at the front end position are clamped and positioned tightly with the inner wall of the pipeline, after the reverse pumping stroke is started, the user opens one of the first multi-way diverter valves 104 to be communicated with the middle expansion bladder 101 to pump out the gas in the middle expansion bladder 101 quickly, and then exhausts the gas in the middle expansion bladder 101 to the outside through the exhaust pipe 108 communicated with the second multi-way diverter valve 105, the gas is exhausted to the outside and then the middle expansion bladder 101 is in a condensation state, and the other expansion bladder 102 at two sides without the pumping stroke is closely attached to the middle expansion bladder 101 with the condensation state, at this time, the user opens the two-way pump 103 again to perform the pumping stroke, and opens the connecting channel of the first multi-way diverter valve 104 to the other first gas pipe 106 after the pumping stroke is opened, and the first air pipe 106 and the first multi-way flow dividing valve 104 are used for injecting air into the two-side expansion bags 102 positioned at the rear, so that the two-side expansion bags 102 positioned at the rear are expanded, when the two-side expansion bags 102 positioned at the rear are expanded and clamped with the inside of a pipeline, a user can discharge air in the two-side expansion bags 102 positioned at the front, continuously inject air into the middle expansion bag 101 through the two-way air pump 103, after the air is continuously injected into the middle expansion bag 101, the middle expansion bag 101 is expanded, the transverse expansion filling self is firstly generated when the middle expansion bag 101 is expanded, meanwhile, the transverse expansion of the middle expansion bag 101 cannot be blocked after condensation is generated when the air in the two-side expansion bags 102 positioned at the front is reduced, so that the two-side expansion bags 102 positioned at the front can be pushed to move in the pipeline, the two-side expansion bags 102 positioned at the front are pushed to the designated positions in the pipeline, and then the pipeline can be repeatedly moved to different positions in the pipeline after the pipeline is continuously pushed to the designated positions, and the pipeline is continuously moved to the different positions from the pipeline inside the pipeline.
Further, when the middle expansion bladder 101 is moved to a designated position inside the outer tube 100 for detection, a worker may start the bi-directional air pump 103 to perform an air delivery stroke, and in the air delivery stroke, the two first air delivery pipes 106 communicating with the first multi-way diverter valve 104 are matched with the first multi-way diverter valve 104 to deliver air to the inside of the two-side expansion bladders 102 located at two sides of the middle expansion bladder 101 through the two first air delivery pipes 106, after the air is delivered into the inside of the two-side expansion bladders 102, the two-side expansion bladders 102 will expand first, after the two-side expansion bladders 102 expand, the two-side expansion bladders 102 will gradually block the channel inside the outer tube 100, and when the two-side expansion bladders 102 expand completely, an independent closed space can be formed inside the outer tube 100, when the two side expansion bags 102 are completely expanded and can be plugged at the front and rear ends of the middle expansion bag body 101, at this time, the user starts the bidirectional air pump 103 to inject air into the middle expansion bag body 101 by matching with the first multi-way flow dividing valve 104, after the middle expansion bag body 101 continuously enters the air, the middle expansion bag body 101 gradually expands, and the middle expansion bag body 101 is limited in the transverse expansion degree of the middle expansion bag body 101 because the front and rear ends are plugged by the two side expansion bag bodies 102 in the expansion process, so that the space formed by the two side expansion bag bodies 102 and the outer tube 100 is only expanded in the middle expansion bag body 101 in the appointed space, the inner wall of the tube of the outer tube 100 can be more bonded, the transverse extension in the expansion process is reduced, and the middle expansion bag body 101 is completely filled, the plurality of detection sensors 107 located outside the intermediate inflation bladder 101 are attached to the inner wall of the outer tube 100, so that the inner wall of the outer tube 100 is detected, and information is transmitted to the outside through the signal transceiver after the detection of the detection sensors 107 is completed.
As shown in fig. 10, the side, far away from the middle expansion bag body 101, of the detection sensor 107 is provided with an arc surface, and the side, close to the outer tube 100, is provided with an arc surface, so that the detection sensor 107 can be better attached to the inner wall surface of the pipeline under the driving of the middle expansion bag body 101, and gaps between the detection sensor 107 and the inner wall of the pipeline are reduced.
Further, during the moving process, the expansion and condensation of the two side expansion capsules 102 and the middle expansion capsule 101 do not cause the overturning phenomenon of the middle expansion capsule 101, so that the middle expansion capsule 101 is more convenient for a worker to determine the position and the positions of the plurality of detection sensors 107 during the moving process.
As shown in fig. 2-6, four embedded capsules 400 are fixedly connected to the inside of the intermediate expansion capsule 101, four shunt tubes 401 are communicated with the outside of the first multi-way shunt valve 104, and one ends, far away from the first multi-way shunt valve 104, of the four shunt tubes 401 are respectively communicated with the four embedded capsules 400.
Specifically, in the detection process, after the middle expansion capsule 101 expands, after the plurality of detection sensors 107 located after expansion detect the opposite crack signals, the bidirectional air pump 103 can be started again to be matched with the first multi-way shunt valve 104 and the shunt pipe 401 to inject air into the embedded capsule 400 in the specified direction, so that the detection sensor 107 detecting the position of the crack signals is attached to the inner wall of the outer tube 100 again through the expansion of the embedded capsule 400 in the opposite position, the detection effect is enhanced, and the detection sensor 107 is an ultrasonic sensor or an electromagnetic sensor.
Further, the embedded capsules 400 are divided into four areas, the fitting degree between the detection sensor 107 and the inner wall of the outer tube 100 is further enhanced by controlling the secondary expansion of the four areas, and meanwhile, the direction and the position of the detection sensor 107 are more conveniently confirmed by staff through the divided four areas.
As shown in fig. 1-6, the outside of the two-sided inflation bladder 102 is in communication with a discharge valve 500.
Specifically, during the use, during the exhaust process of the two-sided expansion bladder 102, the air can be exhausted to the outside through the exhaust valve 500 communicated with the outside of the two-sided expansion bladder 102, and meanwhile, when the air in the inner portion of the inner bladder 400 is exhausted, the user can reversely start the exhaust stroke of the bidirectional air pump 103, and the air in the inner portion of the inner bladder 400 is extracted by matching the first multi-way diverter valve 104 and the plurality of shunt pipes 401, and the air is then exhausted through the second multi-way diverter valve 105 and the exhaust pipe 108.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages: compared with the prior art, in the embodiment, in the pipeline detection process, two side expansion capsules 102 are expanded by virtue of the initial expansion, so that the two side expansion capsules 102 are matched with the outer pipe 100 to form a plugging space, the detection sensor 107 is driven to detect the outer pipe 100 in the specified plugging space by virtue of the expansion middle expansion capsule 101, in the detection process, the expansion degree of the middle expansion capsule 101 is more complete in the detection process of the specified plugging space, and the situation that part of the detection sensor 107 cannot be completely attached to the inner wall of the outer pipe 100 is avoided, so that the detection accuracy is improved.
In the second embodiment, considering that in the detection process, although the two side expansion bladders 102 are first expanded to match with the outer tube 100 to seal the middle expansion bladder 101, there is no excessive connection between the two side expansion bladders 102 and the outer tube 100, and only the expansion and the pipeline between the two side expansion bladders 102 themselves are sealed and clamped, which results in that the thrust generated in the expansion process of the middle expansion bladder 101 directly pushes the two side expansion bladders 102 to move inside the outer tube 100, and once the movement occurs, the sealing effect of the two side expansion bladders 102 on the middle expansion bladder 101 is weakened, so the following technical scheme is proposed according to the technical problem:
As shown in fig. 1-2, two closed rings 200 are integrally formed on the outer parts of the expansion bladders 102 on two sides, an embedded adsorption ring 201 is integrally formed on the inner parts of the closed rings 200, two suction pipes 202 are communicated on the outer parts of the second multi-way flow dividing valves 105, one ends of the suction pipes 202, far away from the second multi-way flow dividing valves 105, penetrate through the outer walls of the middle expansion bladders 101 and the expansion bladders 102 on two sides respectively and are communicated with the embedded adsorption ring 201, a plurality of suction heads 203 are communicated on the outer parts of the embedded adsorption ring 201, a plurality of through holes 204 are formed on the outer walls of the closed rings 200, the suction heads 203 are respectively inserted into the through holes 204, and the two closed rings 200 are matched with the inner walls of the expansion bladders 102 on two sides and the outer tube 100 to form an extrusion closed cavity.
Specifically, in the process of using, when the inside of the two-sided expansion capsule body 102 continuously enters the air to generate expansion, two closed loops 200 positioned outside the two-sided expansion capsule body 102 form annular extrusion closed chambers with the inner wall of the outer tube 100, after the extrusion closed chambers are completed, a user can perform an air suction stroke by starting the two-way air pump 103, in the process of performing the air suction stroke, the air in the inner parts of the embedded adsorption rings 201 is sucked out through the second multi-way shunt valve 105 and the suction tube 202, and is conveyed to the inside of the middle expansion capsule body 101 through the first multi-way shunt valve 104, when the air in the inside of the embedded adsorption rings 201 is sucked out, the air in the extrusion closed chambers is sucked out through a plurality of suction heads 203 positioned outside the embedded adsorption rings 201, after the air in the extrusion closed chambers is sucked out, negative pressure is formed inside the extrusion closed chambers, the negative pressure is generated, the closed chambers are tightly adsorbed on the inner wall of the outer tube 100 through the negative pressure, thereby limiting and fixing the two-sided expansion capsule bodies 102, in the process of the two-sided expansion capsule body 102 through the negative pressure, in the process of adsorbing the two-sided expansion capsule body 102, the air in the process is sucked out through the second multi-way shunt valve 105 and the suction tube 202, the air in the middle expansion capsule body 102 is excessively moved in the expansion capsule body 101 again, the expansion capsule body 101 is generated in the process of the expansion capsule body 101 because the expansion is excessively, and the expansion capsule body 102 is excessively moved in the middle of the expansion body 101 is avoided, and the expansion is caused by the expansion of the inner walls of the inner expansion capsule body 101, the expansion capsules 102 on both sides block the situation that the inner space of the outer tube 100 is enlarged, so that the expanded middle expansion capsule 101 cannot drive the detection sensor 107 to be well attached to the inner wall of the outer tube 100.
As shown in fig. 11, the sealing ring 200 includes a plurality of rubber magnetic rings 700 and a plurality of rubber extension rings 701, and the plurality of rubber magnetic rings 700 and the plurality of rubber extension rings 701 are bonded to each other to be combined into the sealing ring 200.
Specifically, the sealing ring 200 is formed by bonding a plurality of rubber extension rings 701 and rubber magnetic rings 700 to each other, the rubber magnetic rings 700 provide a certain adsorption force to the inner wall of the outer tube 100, and the rubber extension rings 701 provide ductility during the inflation of the two-sided inflation bladder 102.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages: compared with the first embodiment, in the process of gradually expanding the two side expansion bags 102, the sealing ring 200 positioned outside the two side expansion bags 102 is firstly attached to the inner wall of the outer tube 100, and a sealing chamber is gradually formed between the two side expansion bags 102, the sealing ring 200 and the inner wall of the outer tube 100 along with the gradual expansion of the two side expansion bags 102, after the sealing chamber is formed, the bidirectional air pump 103 is started again to perform air suction forming, the air in the sealing chamber is sucked out through the bidirectional air pump 103, so that a negative pressure cavity is formed in the sealing chamber, the two side expansion bags 102 can be firmly adsorbed on the inner wall of the outer tube 100 due to the generation of the negative pressure cavity, the condition that the two side expansion bags 102 are pushed to generate displacement due to the expansion of the middle expansion bag 101 is reduced, the displacement of the two side expansion bags 102 is reduced, and the stability of attaching the sensor 107 to the inner wall of the tube is increased.
In the third embodiment, considering that the internal condition of the pipe cannot be observed from the outside in the use process, and that a gap is generated between the sealing ring 200 and the inner wall of the outer pipe 100 after the two side expansion capsules 102 are fully expanded in the detection process, a negative pressure chamber cannot be formed between the sealing ring 200 and the inner wall of the pipe once the gap is generated, and negative pressure adsorption cannot be formed on the inner wall of the outer pipe 100 once the negative pressure chamber cannot be formed, stability in the process of blocking the middle expansion capsule 101 by the two side expansion capsules 102 is reduced, the following technical scheme is provided for solving the technical problems, and the technical problems are specifically that:
As shown in fig. 3 to 8, a plurality of elastic partition plates 300 are integrally formed on the outside of the closed ring 200, and the plurality of elastic partition plates 300 divide the pressing closed space into a plurality of negative pressure suction chambers.
Specifically, in the use process, after the expansion of the two side expansion bags 102, the space in the extrusion closed cavity formed between the closed ring 200 and the inner wall of the pipeline is divided by the elastic separation plates 300, the space in the extrusion closed cavity is divided into a plurality of independent spaces by the elastic separation plates 300, the independent spaces are formed, the bidirectional air pump 103 is started again to suck the air in the independent spaces, and a plurality of independent negative pressure spaces can be formed after the air in the independent spaces is sucked out, so that even if part of the extrusion closed cavity is internally provided with a part of gaps, the independent spaces additionally formed by the elastic separation plates 300 can form new negative pressure spaces, the overall stability is improved, and the unstable phenomenon caused by the incapability of forming the independent negative pressure spaces is avoided.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages: compared with the second embodiment, in the present embodiment, the extrusion closed cavity formed between the closed ring 200 and the inner wall of the pipeline is divided into a plurality of separate spaces by the elastic partition plate 300, and the separate spaces are pumped out by the bidirectional air pump 103, so that the separate spaces form a negative pressure space, the stability of negative pressure adsorption can be increased by the generation of the plurality of negative pressure spaces, the phenomenon that the negative pressure space cannot be formed due to the occurrence of gaps in the pipeline is reduced, and the stability of the closed ring 200 in the plugging process of the middle expansion capsule 101 is increased.
In the fourth embodiment, considering that in the expansion process of the two-side expansion bladder 102, the closed loop 200 forms an extrusion closed space with the two-side expansion bladder 102 and the inner wall of the outer tube 100, and when the flowing water flow exists in the pipeline, not only the water flow remains in the extrusion closed space after the extrusion closed space is formed, but also the water flow exists in the plugging space formed by the two-side expansion bladder 102 and the middle expansion bladder 101, and the detection effect of the detection sensor 107 on the inner wall of the pipeline is affected by the water flow, aiming at the technical problems, the application proposes the following technical scheme to solve the technical problems, specifically:
as shown in fig. 9, the outer walls of the two closed rings 200 far from the two ends of the middle expansion bag body 101 are respectively provided with a water pipe 601, and the air outlet of the water pipe 601 is fixedly provided with a one-way valve plate 600.
Specifically, in the use, when the expansion process is first produced by the expansion capsule 102 on both sides, the expansion of the expansion capsule 102 on both sides can drive the closed loop 200 to gradually extrude to the inner wall of the pipeline, in the process that the expansion capsule 102 on both sides drives the closed loop 200 to gradually extrude to the inner wall of the outer pipe 100, the water flow between the closed loop 200, the inner wall of the outer pipe 100 and the expansion capsule 102 on both sides can be extruded into the inside of the water pipe 601, and the water flow is discharged to the outside of the expansion capsule 102 on both sides through the water pipe 601, simultaneously after the expansion capsule 102 on both sides is completely expanded to form a plugging space, through injecting gas into the inside of the expansion capsule 101 at the same time, the water flow inside the plugging space formed by the expansion capsule 102 can be gradually extruded in the middle expansion capsule 101, at this moment, the water flow reserved in the inside the plugging space can also be gradually pushed into the inside of the water pipe 601 along with the expansion of the expansion capsule 101 on the middle, and the water flow is discharged through the water pipe 601, the condition that the water flow influences the detection sensor 107, and the water flow is discharged to the outside of the water flow is discharged from the water pipe 601, the inner wall of the air pump 103 is separated from the inner wall of the air pump 101 again, the air pump is completely sucked out, the air is completely sucked into the air cavity is completely, and the air is completely sucked into the plugging space by the air, and the air is completely sucked into the air cavity after the air cavity is completely and completely sucked up, and the air is completely and completely sucked into the air cavity by the air pump 101.
Further, the cavity is integrally formed inside the embedded adsorption ring 201, the cavity is filled with the electrorheological fluid, the electrorheological fluid can be hardened after being electrified, the hardened electrorheological fluid can carry out hardening support on the embedded adsorption ring 201, the stability of the expansion capsule body 102 on two sides in the process of plugging the middle expansion capsule body 101 is further enhanced, and meanwhile, the water delivery pipe 601 is arranged, so that external water flow is changed to flow back into the inside of the one-way valve plate 600.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages: compared with the third embodiment, in this embodiment, the water flow can be gradually extruded to the outside of the two-side expansion bladder 102 in the expansion process of the two-side expansion bladder 102 and the middle expansion bladder 101 through the arrangement of the water pipe 601, so that the condition that a large amount of water flow directly contacts the detection sensor 107 is reduced, the detection influence of the water flow on the detection sensor 107 is reduced, and the detection accuracy is improved.
The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A pipe inspection device comprising an outer pipe (100), characterized in that: the inner part of the outer tube (100) is connected with a middle expansion bag body (101), the middle expansion bag body (101) is cylindrical, two ends of the middle expansion bag body (101) are fixedly connected with two side expansion bag bodies (102), and an inflation structure is arranged in the middle expansion bag body (101);
The inflatable structure comprises a bidirectional air pump (103), the bidirectional air pump (103) is fixedly connected to the inside of the middle inflatable bag body (101), a first multi-way flow dividing valve (104) is communicated with an air inlet of the bidirectional air pump (103), a second multi-way flow dividing valve (105) is communicated with an air outlet of the bidirectional air pump (103), two air outlets of the first multi-way flow dividing valve (104) are both communicated with a first air pipe (106), one end of the first air pipe (106), far away from the first multi-way flow dividing valve (104), penetrates through the outer wall of the middle inflatable bag body (101) and is communicated with the two inflatable bag bodies (102), an exhaust pipe (108) is communicated with the outside of the second multi-way flow dividing valve (105), one end, far away from the second multi-way flow dividing valve (105), of the exhaust pipe (108) penetrates through the outer wall of the middle inflatable bag body (101), and a plurality of detection sensors (107) are arranged on the outside of the middle inflatable bag body (101);
The two-side expansion bag body (102) is integrally formed with two closed rings (200), an inner embedded adsorption ring (201) is integrally formed in the closed rings (200), two suction pipes (202) are communicated with the outer part of the second multi-way flow dividing valve (105), one ends of the suction pipes (202) far away from the second multi-way flow dividing valve (105) penetrate through the outer walls of the middle expansion bag body (101) and the two-side expansion bag body (102) respectively and are communicated with the inner embedded adsorption ring (201), a plurality of suction heads (203) are communicated with the outer part of the inner embedded adsorption ring (201), a plurality of through holes (204) are formed in the outer wall of the closed rings (200), the suction heads (203) are respectively inserted into the inner parts of the through holes (204), and the two closed rings (200) are matched with the two-side expansion bag body (102) and the inner wall of the outer pipe (100) to form an extrusion closed cavity; a plurality of elastic separation plates (300) are integrally formed outside the closed ring (200), and the elastic separation plates (300) divide the extrusion closed space into a plurality of negative pressure adsorption chambers.
2. A pipeline inspection device according to claim 1, wherein: the outer walls of the two closed rings (200) far away from the two ends of the middle expansion bag body (101) are respectively provided with a water conveying pipe (601), and an air outlet of the water conveying pipe (601) is fixedly provided with a one-way valve plate (600).
3. A pipeline inspection device according to claim 1, wherein: four embedded bags (400) are fixedly connected to the inside of the middle expansion bag body (101), four shunt tubes (401) are communicated with the outside of the first multi-way shunt valve (104), and one ends, far away from the first multi-way shunt valve (104), of the four shunt tubes (401) are respectively communicated with the four embedded bags (400).
4. A pipeline inspection device according to claim 1, wherein: the outside of the two-side expansion bag body (102) is communicated with a discharge valve (500).
5. A pipeline inspection device according to claim 1, wherein: the diameter of the outer wall of the two-side expansion bag body (102) is larger than that of the outer wall of the middle expansion bag body (101).
6. A pipeline inspection device according to claim 1, wherein: one side of the detection sensor (107) far away from the middle expansion bag body (101) is provided with an arc-shaped surface.
7. A pipeline inspection device according to claim 1, wherein: the sealing ring (200) comprises a plurality of rubber magnetic rings (700) and a plurality of rubber extension rings (701), and the plurality of rubber magnetic rings (700) and the plurality of rubber extension rings (701) are mutually bonded and combined into the sealing ring (200).
8. A pipeline inspection device according to claim 1, wherein: the detection sensor (107) is an ultrasonic sensor or an electromagnetic sensor.
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| US4195529A (en) * | 1977-06-24 | 1980-04-01 | Kantsedalov Viktor G | Device for moving the pickups of a flaw detection system through a pipeline |
| CN101430038A (en) * | 2007-11-07 | 2009-05-13 | 北京和升达信息安全技术有限公司 | Apparatus capable of freely moving in different pipes |
| CN115163964B (en) * | 2022-07-14 | 2023-07-04 | 哈工大机器人（合肥）国际创新研究院 | Reducing gasbag shutoff robot system |
| CN219159851U (en) * | 2023-02-13 | 2023-06-09 | 诸暨晟达工程检测技术有限公司 | Detection device for pipeline |
| CN220268813U (en) * | 2023-07-17 | 2023-12-29 | 苏州讯动气体科技有限公司 | Peristaltic linear pipeline robot |
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| CN110497383A (en) * | 2019-07-18 | 2019-11-26 | 北京大学口腔医学院 | Built-in two-way air pump Self-controlled air-flow wriggling flexible robot |
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