CN211423696U - Sewer line defect detection device and sewer line maintenance car - Google Patents

Sewer line defect detection device and sewer line maintenance car Download PDF

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Publication number
CN211423696U
CN211423696U CN201922388850.4U CN201922388850U CN211423696U CN 211423696 U CN211423696 U CN 211423696U CN 201922388850 U CN201922388850 U CN 201922388850U CN 211423696 U CN211423696 U CN 211423696U
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China
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pressure
sewer
traction cylinder
pipeline
air
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CN201922388850.4U
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Chinese (zh)
Inventor
单龙
桑健权
孔德军
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Xuzhou XCMG Environment Technology Co Ltd
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Xuzhou XCMG Environment Technology Co Ltd
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Abstract

The utility model provides a sewer line defect detecting device and sewer line tool car, wherein, detection device includes: the pressure detection assembly comprises a pressure sensor and a pressure sensing diaphragm which are electrically connected; the outer diameter of the traction cylinder is smaller than the inner diameter of the sewer pipeline, two air bags are arranged on the outer wall of the traction cylinder at intervals along the axial direction of the traction cylinder, and each air bag is arranged around the whole circumference of the traction cylinder; and an inflation component for inflating the two air bags; the traction cylinder enters a sewer pipe and the two air bags are inflated, a closed space is formed by the traction cylinder, the sewer pipe and the two air bags in a surrounding mode, the position, to be detected, of the sewer pipe is located between the two air bags, the pressure sensing diaphragm is attached to the outer wall of the traction cylinder and located between the two air bags, the pressure sensing diaphragm is used for transmitting the pressure in the closed space to the pressure sensor, and the damage condition of the position to be detected is determined through the detection value of the pressure sensor. The device can be used for quickly and accurately checking and positioning the damaged part of the underground pipeline.

Description

Sewer line defect detection device and sewer line maintenance car
Technical Field
The utility model relates to a plumbing construction technical field especially relates to a sewer line defect detecting device and sewer line tool car.
Background
Along with the rapid development of economy in China, the urban construction scale is larger and larger, and due to the aging and long-term overhaul of old pipelines, various municipal pipelines such as underground drainage pipelines, power pipelines and the like have different damage phenomena such as deformation, staggered joints, disjointing and the like, and the pipelines with the original structural defects need to be repaired and then extended and laid.
At present, the trenchless pipeline repairing process widely applied at home and abroad mainly comprises a normal position solidification (CIPP) method, a penetration method, a pipe crushing (cracking) method, a folding lining method, a reducing lining method, a mechanical winding method, local repairing and the like.
The local repair method comprises a repair air bag method and a built-in piston ring method. The air bag repairing method is that glass fiber cloth which is fully smeared with resin is wound on an air bag, the air bag is conveyed to the position of a pipeline defect from an inspection well, the air bag is inflated by an air compressor, so that the air bag wound with the glass fiber cloth is tightly attached to the inner side of the pipe wall of the defect position, and the repairing purpose is achieved.
The built-in piston ring method is characterized in that a stainless steel piston ring is pressed by using special hydraulic equipment, a sealing water stop belt is installed and fixed at the position of a pipeline defect, the technology needs a worker to enter the pipeline, the rubber strip and the stainless steel buckle belt are manually fixed, an expander is installed, and the installation process is controlled. The local repair must first confirm the location of the pipeline defect, which is one of the difficulties in trenchless repair that is important and also affects the efficiency of construction.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a sewer pipe defect detecting device and sewer pipe tool car can accurately inspect the location to the damage position of underground piping fast.
The utility model provides an aspect provides a sewer pipe defect detecting device, include:
the pressure detection assembly comprises a pressure sensor and a pressure sensing diaphragm, and the pressure sensor is electrically connected with the pressure sensing diaphragm;
the outer diameter of the traction cylinder is smaller than the inner diameter of the sewer pipeline, two air bags are arranged on the outer wall of the traction cylinder at intervals along the axial direction of the traction cylinder, and each air bag is arranged around the whole circumference of the traction cylinder; and
an inflation member configured to inflate the two airbags;
the traction cylinder, the sewer pipeline and the two air bags are enclosed to form a closed space in a state that the traction cylinder enters the sewer pipeline and the two air bags are inflated, the to-be-detected position of the sewer pipeline is located between the two air bags, the pressure sensing diaphragm is attached to the outer wall of the traction cylinder and located between the two air bags, and the pressure sensing diaphragm is configured to transmit pressure in the closed space to the pressure sensor so as to determine the damage condition of the to-be-detected position through the detection value of the pressure sensor.
In some embodiments, the pressure sensing diaphragm has elasticity to elastically deform to sense pressure changes within the enclosed space when pressure changes within the enclosed space.
In some embodiments, the apparatus further comprises a controller electrically connected to the pressure sensor and configured to determine that the suspected position is damaged when a variation of a detection value of the pressure sensor exceeds a preset pressure within a preset time.
In some embodiments, the pressure detection assembly further comprises a first wiring harness and a second wiring harness, the pressure sensor is located in the traction cylinder and close to the first end, a signal input interface of the pressure sensor is connected with the pressure sensing diaphragm through the first wiring harness, a signal output interface of the pressure sensor is connected with the controller through the second wiring harness, and the second wiring harness extends in the traction cylinder and is led out from the second end of the traction cylinder.
In some embodiments, the inflation component comprises: the air-entraining device comprises an air source and two air-entraining pipes, wherein the two air-entraining pipes are arranged in a traction cylinder, the respective first ends of the two air-entraining pipes are communicated with the air source, and the respective other ends of the two air-entraining pipes penetrate through the side wall of the traction cylinder and are communicated with two air bags.
In some embodiments, the device further comprises two grouting pipes, wherein one end of each grouting pipe penetrates through the side wall of the traction cylinder and is positioned between the two air bags, and the two grouting pipes are configured to introduce first chemical grout and second chemical grout into the closed space respectively so as to repair the damaged position of the sewer pipe through chemical reaction of the first chemical grout and the second chemical grout.
In some embodiments, the traction drum is provided with guide wheels at both ends in the length direction.
In some embodiments, a drive component is also included, coupled to the traction drum, configured to power movement of the traction drum within the sewer line.
In some embodiments, further comprising: the shooting component is arranged on the outer wall of the traction cylinder and is configured to shoot the inner wall of the sewer pipeline; the display component is configured to display the image and/or the video of the inner wall of the pipeline shot by the camera component so as to preliminarily identify the damaged area on the pipeline.
In some embodiments, the pressure detection assembly is configured to continuously monitor pressure changes within the enclosed space during grouting to repair the damaged location to cease repair after the pressure changes are less than a preset pressure; or
The pressure detection assembly is configured to again test the pressure at the repair site after the grouting repair is completed to check the repair quality.
The utility model discloses another aspect provides a sewer line tool car, include: the sewer pipe repairing device of the embodiment.
In some embodiments, the sewer defect detection device is arranged in a containing chamber at the rear part in the carriage and can be taken out when the sewer needs to be overhauled, so that the traction cylinder enters the sewer.
The sewer pipe defect detection device provided by the embodiment of the utility model can accurately position the defect position of the sewer pipe through the pressure detection assembly, can quickly carry out grouting repair on the damaged underground pipeline, improves the sewer pipe repair efficiency, and effectively solves the problems of soil loss, surface subsidence, infiltration, inflow and the like caused by pipeline damage; but also can realize remote operation, is safer and more convenient, and realizes the mechanization of pipeline repair.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic structural view of an embodiment of the sewer pipeline maintenance vehicle of the present invention;
FIG. 2 is a schematic structural view of the sewer pipeline maintenance vehicle in a working state;
FIG. 3 is a schematic structural view of an embodiment of the defect detecting device for sewage pipes of the present invention;
fig. 4 is the utility model discloses sewer pipe defect detecting device is in the structural sketch map of pressure detection state.
Detailed Description
The present invention will be described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Aspects so defined may be combined with any other aspect or aspects unless clearly indicated to the contrary. In particular, any feature considered preferred or advantageous may be combined with one or more other features considered preferred or advantageous by the heavy-duty machine or machines.
The terms "first", "second", and the like in the present invention are used for convenience of description only to distinguish different constituent elements having the same name, and do not indicate a sequential or primary-secondary relationship.
In addition, when an element is referred to as being "on" another element, it can be directly on the other element or be indirectly on the other element with one or more intervening elements interposed therebetween. In addition, when an element is referred to as being "connected to" another element, it may be directly connected to the other element or may be indirectly connected to the other element with one or more intervening elements interposed therebetween. Hereinafter, like reference numerals denote like elements.
The present invention is described with reference to the directions or positional relationships indicated as "upper", "lower", "top", "bottom", "front", "rear", "inner" and "outer", etc., which are merely for convenience of description of the present invention, and do not indicate or imply that the device referred to must have a particular direction, be constructed and operated in a particular direction, and therefore should not be construed as limiting the scope of the present invention. The directions are defined by taking the sewer pipeline maintenance vehicle as a reference when the sewer pipeline maintenance vehicle runs forwards.
As shown in fig. 1, the sewer pipeline maintenance vehicle includes: the device comprises a chassis 1, a carriage 2, an internal control room 3, a hand washing sink 4, a chemical agent pump assembly 5, a water storage tank 6, a traction cylinder 7, a grouting pipe 8, a pressure detection device 9 and a flushing water gun 10. Carriage 2 sets up on chassis 1 frame, inside control room 3 sets up in carriage 2 foremost, wash hand pond 4, chemical pump assembly 5, water holding vessel 6, pull a section of thick bamboo 7, grout pipe 8 and pressure measurement device 9 set gradually in carriage 2 inside from the past to the back along the length direction of tool car, rear end in carriage 2 inside is equipped with accommodation chamber K, wash squirt 10 and set up in carriage 2 rear end accommodation chamber K top, it is regional to pull the below that a section of thick bamboo 7 is located accommodation chamber K, grout pipe 8 and pressure measurement device 9 are located accommodation chamber K and are in the top of pulling a section of thick bamboo 7.
As shown in fig. 1, the present invention provides a sewer defect detecting device, which in some embodiments comprises: a pressure detection assembly 9, a traction cylinder 7 and an inflation component.
The pressure detecting assembly 9 includes a pressure sensor 91 and a pressure sensing diaphragm 92, and the pressure sensor 91 is electrically connected to the pressure sensing diaphragm 92. The traction cylinder 7 can be of a cylinder structure, the outer diameter of the traction cylinder 7 is smaller than the inner diameter of the sewer pipeline 11, two air bags 93 are arranged on the outer wall of the traction cylinder 7 at intervals along the axial direction of the traction cylinder, and each air bag 93 is arranged around the whole circumference of the traction cylinder 7. The inflation member is configured to inflate the two airbags 93.
When the traction cylinder 7 enters the sewer pipe 11 and the two air bags 93 are in a full-air state, a closed space S is formed by the surrounding among the outer wall of the traction cylinder 7, the inner wall of the sewer pipe 11 and the two air bags 93, and the two air bags 93 swell to be in close contact with the inner wall of the sewer pipe 11, so that circumferential line contact can be formed, or surface contact can be formed to achieve a better sealing effect.
The suspected position of the sewer pipe 11 is located between the two air bags 93, and the pressure sensing diaphragm 92 is attached to the outer wall of the traction cylinder 7 at a position between the two air bags 93, and is configured to transmit the gas pressure in the closed space S to the pressure sensor 91 so as to determine the damage condition of the suspected position through the detection value of the pressure sensor 91.
According to the embodiment, the defect position of the sewer pipe can be quickly and accurately positioned through the pressure detection assembly, the damaged underground pipe can be quickly repaired by grouting, the repairing time is greatly shortened, the repairing efficiency of the sewer pipe is improved, and the problems of soil loss, surface subsidence, permeation, inflow and the like caused by pipeline damage are effectively solved; but also can realize remote operation, is safer and more convenient, and realizes the mechanization of pipeline repair.
In some embodiments, the pressure sensing diaphragm 92 has elasticity to elastically deform when the pressure of the gas in the enclosed space S changes to sense the pressure change in the enclosed space S and transmit to the pressure sensor.
In some embodiments, the water pipe defect detecting apparatus further includes a controller electrically connected to the pressure sensor 91 and configured to determine that the suspected position of the sewer pipe 11 is damaged when a variation of a detection value of the pressure sensor 91 exceeds a preset pressure within a preset time.
The pressure change in the enclosed space S is measured by the pressure sensor 91 for a predetermined time, and if the pressure is kept constant or the decrease amount does not exceed a predetermined pressure, the sewer pipe 11 does not have a defect in the enclosed space S, i.e., the sewer pipe 11 is intact.
If the to-be-detected position of the sewer pipe 11 is damaged, for example, cracks or other damages exist, the gas in the closed space S gradually leaks out of the sewer pipe 11, the internal pressure is reduced, and if the pressure reduction exceeds the preset pressure, it indicates that the sewer pipe 11 has a defect at the corresponding position of the closed space S, and grouting repair is needed.
In some embodiments, as shown in fig. 3 and 4, the water pipeline defect detecting apparatus further comprises a controller, the pressure detecting assembly 9 further comprises a first wire harness 94 and a second wire harness 95, the pressure sensor 91 is located in the traction cylinder 7 at a position close to a first end, which is a forward end of the traction cylinder 7 in the sewer pipeline 11.
The signal input interface of the pressure sensor 91 is connected to the pressure sensing diaphragm 92 via a first harness 94, and specifically, the first harness 94 is connected to the pressure sensing diaphragm 92 through the sidewall of the traction cylinder 7. The signal output interface of the pressure sensor 91 is connected with the controller through a second wiring harness 95, and the second wiring harness 95 extends in the traction cylinder 7 and is led out from the second end of the traction cylinder 7 to the controller. A controller may be provided in the inner control chamber 3 for the operator to observe the pressure changes.
In the embodiment, the pressure sensor 91 and the pressure sensing diaphragm 92 are matched to detect the pressure in the closed space S, so that the setting difficulty of the pressure sensor 91 can be reduced, and the pressure can be accurately detected; moreover, the pressure sensor 91 is a precision device, and is arranged in the traction cylinder 7, so that the impact can be prevented in the moving process of the traction cylinder 7, and the influence of sludge and grouting slurry in the sewer pipe 11 can be avoided, thereby improving the reliability of pressure detection.
In some embodiments, as shown in fig. 3 and 4, the inflation component comprises: the air bag traction device comprises an air source and two air guide pipes 12, wherein the two air guide pipes 12 are arranged in a traction cylinder 7, the respective first ends of the two air guide pipes 12 are communicated with the air source, and the respective other ends of the two air guide pipes 12 are communicated with two air bags 93 through the side wall of the traction cylinder 7 respectively. This embodiment can conveniently inflate the air bag 93 when pressure detection needs to be performed on the position to be detected.
In some embodiments, the water pipeline defect detecting apparatus further includes two grouting pipes 8, and in order to improve the flexibility of use, the grouting pipes 8 may be hoses, one end of each of the two grouting pipes 8 passes through the sidewall of the traction cylinder 7 and is located between the two air bags 93, and the second end of each of the two grouting pipes is respectively communicated with a slurry storage container in the sewer pipeline maintenance vehicle, and is configured to introduce a first chemical slurry and a second chemical slurry into the enclosed space S, respectively, so as to repair a damaged position of the sewer pipeline 11 by the chemical grouting formed by a chemical reaction of the first chemical slurry and the second chemical slurry in the enclosed space S. This embodiment can conveniently repair when detecting that sewer pipe 11 has the defect, improves the degree of automation that the pipeline was overhauld.
The chemical grouting liquid is generated by using two different liquid chemical agents under a sealing process, the two liquid chemical grouting liquids are respectively injected into a leakage crack and a pipeline joint through the two grouting pipes 8 and reach the surrounding soil through the crack or the joint, and gel is formed between the chemical grouting liquids and the soil after the chemical grouting liquids are combined with each other, so that the leakage at the current stage is prevented, the leakage is prevented from entering the next stage, the curing time of the chemical grouting liquids is about 25s, and the construction efficiency is greatly improved.
Further, during grouting repair of the sewer pipe 11, the pressure detection assembly 9 is configured to continuously monitor pressure changes in the enclosed space S during grouting repair of the damaged location, and the controller stops repairing after judging that the pressure changes are smaller than a preset pressure. When the pressure change is smaller than the preset pressure, the air leakage of the sewer pipe 11 is indicated to meet the use requirement, and in order to enable the pipeline repair to be more reliable, the repair can be stopped after a delay is applied after the pressure change is smaller than the preset pressure. The embodiment can quantitatively judge the actual condition of stopping repairing, not only can ensure the pipeline repairing quality, but also can reduce the waste of slurry.
After the repair is finished, the pressure of the repair position can be tested again through the pressure detection assembly 9, and if the pressure change in the preset time is still smaller than the preset pressure, the repair quality is indicated to meet the use requirement. The method can improve the reliability of pipeline repair.
In some embodiments, as shown in fig. 3, the traction drum 7 is provided with guide wheels 71 at both ends in the length direction. The guide wheel 71 can guide the traction cylinder 7 to move smoothly in the slender sewer pipeline 11, so that clamping stagnation in the moving process is prevented, and the guide wheel 71 can be higher than the outer wall of the traction cylinder 7, so that the traction cylinder 7 can be prevented from colliding with the inner wall of the sewer pipeline 11, and the inner wall of the sewer pipeline 11 is prevented from being damaged.
In some embodiments, the water conduit defect detection apparatus further comprises a drive component, coupled to the traction drum 7, configured to power movement of the traction drum 7 within the sewer conduit 11 under control of the controller. The structure can enable the detection device to automatically move to the position to be detected in the sewer pipeline 11, and the detection and the repair are more convenient.
In some embodiments, the water pipe defect detecting apparatus further comprises: a photographing part provided on an outer wall of the traction cylinder 7 and configured to photograph an inner wall of the sewer pipe 11; the display component is configured to display images and/or videos of the inner wall of the pipeline taken by the camera so as to preliminarily identify a damaged area on the pipeline by the naked eye of an operator. After the damaged area is preliminarily determined, the traction drum 7 is moved to the position of the damaged area, and the position where the damage occurs is accurately positioned in a pressure detection mode.
The shooting component is suitable for determining obvious pipeline damage positions which can be identified by naked eyes, and for some tiny cracks or flaws, the pipeline damage positions are difficult to identify by naked eyes, but a fluid leakage phenomenon also exists, and at the moment, the damage positions need to be accurately positioned by means of pressure detection so as to accurately determine the area to be repaired. Of course, in actual operation, only the pressure detection mode may be used.
The defect positioning method can more conveniently and accurately find out the position of the damaged sewer pipeline 11.
Secondly, the utility model also provides a sewer pipe tool car, 11 prosthetic devices of sewer pipe including above-mentioned embodiment.
In some embodiments, when the sewer pipe inspection vehicle travels, the sewer pipe defect detecting device is accommodated in the accommodating chamber K at the rear part of the carriage 2 and is taken out when the sewer pipe 11 needs to be inspected, so that the traction cylinder 7 enters the sewer pipe 11.
As shown in fig. 2, if the sewer pipe 11 is damaged, the sewer pipe inspection vehicle is parked on the ground beside the sewer pipe 11 to be inspected, and the traction drum 7 is taken out together with the grout pipe 8, so that the traction drum 7 is introduced into the sewer pipe 13 at a predetermined position, such as the position of the pipe joint in fig. 2, through the wellhead on the ground.
Firstly, the pipeline is preprocessed, including cleaning the pipeline by using a flushing water gun 10, detecting the damage position in the pipeline which can be identified by naked eyes by using a camera, measuring the inner diameter of the pipeline and the like. Then, the pressure test is performed inside the sewer pipe 11, and if the pressure in the enclosed space S enclosed by the two air bags 93 is kept constant, the pipe is intact and the pipe is not damaged. Conversely, if the pressure drops, indicating a test validation failure, the pipeline is damaged and needs to be repaired.
During the pressure test, the damaged condition of the pipeline can be output to the display component in real time through the control component in the internal control chamber 3, so that the condition of the pipeline can be monitored in real time. The damaged condition comprises a damaged position of the inner wall of the pipe shot by the camera and a pressure change condition in the closed space S.
After the interior of the pipeline is scanned and evaluated, the position to be repaired can be accurately positioned, and the damaged part of the pipeline is prepared to be repaired. After all damaged parts on the sewer pipe 11 are located, the damaged underground pipe is repaired by a chemical grouting method.
Through describing the working process to sewer pipe tool car, can understand the utility model discloses a sewer pipe tool car is whole when the construction and is berthhed at the roadside, does not influence the traffic, moreover because non-excavation is restoreed, influences fewly to commercial environment on every side, can not produce the damage to the object scene on every side, also can be under construction in the region that is difficult to the entering. In addition, people can be prevented from entering underground construction, and the personal safety of workers is effectively guaranteed; the remote operation and the construction progress monitoring are safer and more convenient, and the modernization and mechanization of pipeline detection and repair are really realized. In the sewer pipeline repairing process, the damage condition and the repairing condition of the pipeline can be monitored in real time, so that the whole pipeline repairing process hidden underground is visual, and the accuracy of the pipeline repairing work can be further improved.
It is right above the utility model provides a sewer pipe defect detecting device and sewer pipe tool car have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to aid in understanding the methods and their core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (12)

1. A defect detection device for a sewer line is characterized by comprising:
a pressure sensing assembly (9) comprising a pressure sensor (91) and a pressure sensing diaphragm (92), the pressure sensor (91) being electrically connected to the pressure sensing diaphragm (92);
the outer diameter of the traction cylinder (7) is smaller than the inner diameter of the sewer pipeline (11), two air bags (93) are arranged on the outer wall of the traction cylinder (7) at intervals along the axial direction of the traction cylinder, and each air bag (93) is arranged around the whole circumference of the traction cylinder (7); and
an inflation member configured to inflate both of the airbags (93);
wherein, under the state that the traction cylinder (7) enters the sewer pipe (11) and the two air bags (93) are inflated, a closed space (S) is formed by the traction cylinder (7), the sewer pipe (11) and the two air bags (93), the position to be detected of the sewer pipe (11) is positioned between the two air bags (93), the pressure sensing diaphragm (92) is attached to the outer wall of the traction cylinder (7) at the position between the two air bags (93), and the pressure sensing diaphragm is configured to transmit the pressure in the closed space (S) to the pressure sensor (91) so as to determine the damage condition of the position to be detected through the detection value of the pressure sensor (91).
2. The sewer line defect detecting device of claim 1, wherein said pressure sensing diaphragm (92) has elasticity to elastically deform to sense pressure changes in said enclosed space (S) when pressure changes in said enclosed space (S).
3. The sewer line defect detecting device of claim 1, further comprising a controller electrically connected to the pressure sensor (91) and configured to determine that the suspected position is damaged when a variation of a detection value of the pressure sensor (91) exceeds a preset pressure for a preset time.
4. The sewer pipe defect detecting device of claim 1, characterized in that the pressure detecting assembly (9) further comprises a first harness (94) and a second harness (95), the pressure sensor (91) is positioned in the traction cylinder (7) near the first end, the signal input interface of the pressure sensor (91) is connected with the pressure sensing diaphragm (92) through the first harness (94), the signal output interface of the pressure sensor (91) is connected with the controller through the second harness (95), and the second harness (95) extends in the traction cylinder (7) and is led out from the second end of the traction cylinder (7).
5. The sewer line defect detection device of claim 1, wherein said inflatable component comprises: the air-entraining device comprises an air source and two air-entraining pipes (12), wherein the two air-entraining pipes (12) are arranged in a traction cylinder (7), the respective first ends of the two air-entraining pipes (12) are communicated with the air source, and the respective other ends of the two air-entraining pipes penetrate through the side wall of the traction cylinder (7) and are communicated with two air bags (93).
6. The sewer pipe defect detecting device of claim 1, further comprising two grouting pipes (8), one end of each of the two grouting pipes (8) passes through the side wall of the traction cylinder (7) and is positioned between the two air bags (93), and the grouting pipes are configured to introduce a first chemical grout and a second chemical grout into the closed space (S) respectively so as to repair a position where the sewer pipe (11) is damaged by the chemical reaction of the first chemical grout and the second chemical grout.
7. The sewer line defect detecting device of claim 1, wherein both ends of the traction cylinder (7) along the length direction are provided with guide wheels (71).
8. Sewer line defect detection device according to claim 1, characterized in that it further comprises a drive component, connected to said traction drum (7), configured to power the movement of said traction drum (7) within the sewer line (11).
9. The sewer line defect detection device of claim 1, further comprising: a photographing part provided on an outer wall of the traction cylinder (7) and configured to photograph an inner wall of a sewer pipe (11); the display part is configured to display the pipeline inner wall image and/or video photographed by the photographing part to preliminarily identify a damaged area on the sewer pipeline (11).
10. The sewer line defect detecting device of claim 1,
the pressure detection assembly (9) is configured to continuously monitor the pressure change in the closed space (S) during the grouting repair of the damaged location, so as to stop the repair after the pressure change in a preset time is less than a preset pressure; or
The pressure detection assembly (9) is configured to re-test the pressure at the repair location after the grouting repair is completed to check the repair quality.
11. A sewer pipeline maintenance vehicle, characterized by comprising a sewer pipeline (11) repair device according to any one of claims 1 to 10.
12. Sewer pipeline inspection vehicle according to claim 11, characterized in that said sewer pipeline defect detection device is arranged in a rear housing compartment (K) in the carriage (2) and can be taken out when the sewer pipeline (11) needs to be inspected, so that said traction drum (7) enters the sewer pipeline (11).
CN201922388850.4U 2019-12-27 2019-12-27 Sewer line defect detection device and sewer line maintenance car Active CN211423696U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112815175A (en) * 2020-12-31 2021-05-18 中国地质大学(武汉) Pipe die pressing and injecting type trenchless pipeline repairing equipment and repairing method
CN113405027A (en) * 2021-06-25 2021-09-17 中国船舶重工集团公司第七一九研究所 Pipeline damage detection device and pipeline damage detection method
CN113819335A (en) * 2021-08-26 2021-12-21 中山大学 Pipeline repairing device and pipeline repairing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112815175A (en) * 2020-12-31 2021-05-18 中国地质大学(武汉) Pipe die pressing and injecting type trenchless pipeline repairing equipment and repairing method
CN113405027A (en) * 2021-06-25 2021-09-17 中国船舶重工集团公司第七一九研究所 Pipeline damage detection device and pipeline damage detection method
CN113819335A (en) * 2021-08-26 2021-12-21 中山大学 Pipeline repairing device and pipeline repairing method

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