CN210775049U - Pipeline cleaning and detecting device and tool trolley with same - Google Patents
Pipeline cleaning and detecting device and tool trolley with same Download PDFInfo
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- CN210775049U CN210775049U CN201920472757.9U CN201920472757U CN210775049U CN 210775049 U CN210775049 U CN 210775049U CN 201920472757 U CN201920472757 U CN 201920472757U CN 210775049 U CN210775049 U CN 210775049U
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Abstract
The utility model provides a pipeline washs detection device and has its frock dolly. Pipeline washs detection device and is used for wasing the pipeline and detect the cleaning quality of pipeline, and pipeline washs detection device includes: cleaning and pressure maintaining components, and performing cleaning and pressure maintaining operation on the pipeline to be tested; the pressurizing assembly is connected with the cleaning and pressure maintaining assembly, and is used for detecting the pressure of the pipeline to be tested and filling air into the pipeline to be tested so as to enable the pressure in the pipeline to be tested to meet the requirements of cleaning and pressure maintaining; and the cleanliness detection assembly is used for detecting the cleanliness of the pipeline to be tested in the process of cleaning the pipeline to be tested by the cleaning pressure maintaining assembly so as to stop the cleaning operation of the pipeline to be tested when the cleanliness of the pipeline to be tested meets a preset value. Use the technical scheme of the utility model, can solve among the prior art problem that the pipeline cleaning efficiency is low and cleaning quality can't be confirmed.
Description
Technical Field
The utility model relates to a pipeline washs technical field, particularly, relates to a pipeline washs detection device and has its frock dolly.
Background
At present, air brake is mostly adopted in the rail vehicles, and a brake pipeline is an important component of the whole brake system. An air pipeline for braking the vehicle is installed below the vehicle underframe in a penetrating mode, impurities possibly exist in an inner cavity of the pipeline in the installation process, and in order to guarantee the braking performance of the vehicle, the pipeline connection air tightness is detected by using a pipeline cleaning and pressure maintaining device after the pipeline is installed, and the inner cavity of the pipeline is cleaned in a blowing mode.
The pipeline cleaning pressure maintaining device adopts the intermittent air charging and discharging principle to purge the inner cavity of the air pipeline. According to the verification of the existing vehicle process test, the pipeline cleaning and purging times are determined as 100 times, but at present, no accurate pipeline cleanliness detection means exists, whether the inner wall of the pipeline is cleaned or not cannot be judged, and the standard requirement is met; it is impossible to judge whether the number of times of cleaning the existing pipeline is too large.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a pipeline washs detection device and has its frock dolly to solve the problem that pipeline cleaning efficiency is low among the prior art.
In order to achieve the above object, according to the utility model discloses an aspect provides a pipeline washs detection device for wash the pipeline and detect the cleaning quality of pipeline, pipeline washs detection device and includes: cleaning and pressure maintaining components, and performing cleaning and pressure maintaining operation on the pipeline to be tested; the pressurizing assembly is connected with the cleaning and pressure maintaining assembly, and is used for detecting the pressure of the pipeline to be tested and filling air into the pipeline to be tested so that the pressure in the pipeline to be tested meets the requirement of the cleaning and pressure maintaining test; and the cleanliness detection assembly is used for detecting the cleanliness of the pipeline to be tested in the process of cleaning the pipeline to be tested by the cleaning pressure maintaining assembly so as to stop the cleaning operation of the pipeline to be tested when the cleanliness of the pipeline to be tested meets a preset value.
Further, the cleanliness detection assembly includes: the controller is connected with the cleaning and pressure maintaining assembly, and a preset cleanliness value is arranged in the controller; the detection module is connected with the controller, the controller controls the detection module to detect the cleanliness of the pipeline to be tested, and when the cleanliness detected by the detection module is smaller than a preset cleanliness value, the controller controls the cleaning pressure maintaining assembly to stop cleaning operation; when the cleanliness detected by the detection module is larger than or equal to the cleanliness preset value, the controller controls the cleaning pressure maintaining assembly to continue cleaning.
Further, the cleanliness detection assembly further comprises a protection electromagnetic valve which is opened or closed so as to realize the opening or the ending of the cleanliness detection assembly.
Further, the cleanliness detection assembly further comprises a one-way valve, and the one-way valve is arranged between the protection electromagnetic valve and the detection module.
Further, the washing and pressure maintaining assembly comprises: the air source is used for supplying air into the pipeline to be tested so as to clean the pipeline to be tested; the filter is used for filtering impurities in the air sent by the air source; the oil-water separator is used for separating water and oil stains in the air fed by the wind source; wherein, the air sent by the wind source passes through the filter and the oil-water separator in sequence and then cleans the pipeline to be tested.
Further, wash pressurize subassembly still includes: the air inlet electromagnetic valve is connected with an air source to control the air source to supply air to the pipeline to be tested; the pressure sensor is connected with the air inlet electromagnetic valve to detect the pressure on the pipeline to be tested and is provided with a pressure preset value; the exhaust electromagnetic valve is connected with the pressure sensor; when the pressure sensor detects that the pressure on the pipeline to be tested reaches a preset pressure value, the air inlet electromagnetic valve is closed, and the exhaust electromagnetic valve is opened to stop supplying air to the pipeline to be tested; when the pressure sensor detects that the pressure on the pipeline to be tested is lower than a preset pressure value, the air inlet electromagnetic valve is opened, and the air outlet electromagnetic valve is closed so as to supply air to the pipeline to be tested.
Further, the cleaning and pressure maintaining assembly further comprises a silencer.
Further, the boost assembly includes: a pilot operated solenoid valve; the booster pump is connected with the pilot-operated electromagnetic valve and is used for charging high-pressure air into the pipeline to be tested; when the detection device carries out pressure detection, the pilot-operated electromagnetic valve is opened, the booster pump charges high-pressure air into the pipeline to be tested, and in the preset time, the pressure reduction amount in the pipeline to be tested, which is detected by the pressure sensor, is lower than the preset leakage amount, so that the pressure detection of the pipeline to be tested is qualified.
Further, the pressurizing assembly further comprises an air cylinder, and the air cylinder is connected with the pressurizing pump so that the pressurizing of the pressurizing pump is stable.
According to the utility model discloses an on the other hand provides a frock dolly, including automobile body and the pipeline of setting in the automobile body wash detection device, pipeline washs detection device and is foretell pipeline washing testing arrangement.
Further, be equipped with a plurality of pipelines on the frock dolly and wash detection device, a plurality of pipelines wash detection device can wash the detection to a plurality of pipelines of waiting to test simultaneously.
Use the technical scheme of the utility model, owing to set up the cleanliness determine module to when treating the test pipeline and wasing the operation, can treat the cleanliness of test pipeline in real time and detect, stop the washing operation to the belt cleaning pipeline when the cleanliness of treating the test pipeline satisfies the default, under the prerequisite of the cleaning quality of assurance pipeline, improved the cleaning efficiency of pipeline greatly, shortened the cleaning cycle, the cost is reduced. Compared with the prior art, when the pipeline is cleaned, the cleaning and blowing frequency of the pipeline to be tested is determined as 100 times, the cleaning quality of the cleaned pipeline cannot be judged, and whether the preset cleaning and blowing frequency is too much or not cannot be judged.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic view of an embodiment of a pipeline cleaning detection device according to the present invention.
Wherein the figures include the following reference numerals:
10. cleaning the pressure maintaining assembly; 11. a source of wind; 12. a filter; 13. an oil-water separator; 14. an air inlet solenoid valve; 15. a pressure sensor; 16. an exhaust solenoid valve; 17. a muffler; 20. a pressurizing assembly; 21. a pilot operated solenoid valve; 22. a booster pump; 23. an air reservoir; 30. a cleanliness detection assembly; 31. a controller; 32. a detection module; 33. protecting the electromagnetic valve; 34. a one-way valve.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the present embodiment provides a pipe cleaning detection apparatus for cleaning a pipe and detecting the cleaning quality of the pipe. The pipeline cleaning detection device of this embodiment includes a cleaning pressure maintaining assembly 10, a pressurizing assembly 20, and a cleanliness detection assembly 30. The cleaning and pressure maintaining assembly 10 performs cleaning and pressure maintaining operation on a pipeline to be tested; the pressurizing assembly 20 is connected with the cleaning and pressure maintaining assembly 10, and the pressurizing assembly 20 detects the pressure of the pipeline to be tested and fills air into the pipeline to be tested so that the pressure in the pipeline to be tested meets the requirements of cleaning and testing; the cleanliness detection assembly 30 is used for detecting the cleanliness of the pipeline to be tested in the process of cleaning the pipeline to be tested by the cleaning pressure maintaining assembly 10, so as to stop the cleaning operation of the pipeline to be tested when the cleanliness of the pipeline to be tested meets a preset value.
In this embodiment, because the cleanliness detection assembly 30 is arranged, when the pipeline to be tested is cleaned, the cleanliness of the pipeline to be tested can be detected in real time, so that the cleaning operation for cleaning the pipeline is stopped when the cleanliness of the pipeline to be tested meets a preset value, the cleaning efficiency of the pipeline is greatly improved on the premise of ensuring the cleaning quality of the pipeline, the cleaning period is shortened, and the cost is reduced. Compared with the prior art, when the pipeline is cleaned, the cleaning and blowing frequency of the pipeline to be tested is determined as 100 times, the cleaning quality of the cleaned pipeline cannot be judged, and whether the preset cleaning and blowing frequency is too much cannot be judged.
As shown in fig. 1, in the present embodiment, cleanliness detection assembly 30 includes a controller 31 and a detection module 32. The controller 31 is connected with the cleaning and pressure maintaining assembly 10, and a preset cleanliness value is arranged in the controller 31; the detection module 32 is connected with the controller 31, the controller 31 controls the detection module 32 to detect the cleanliness of the pipeline to be tested, and when the cleanliness detected by the detection module 32 is smaller than a preset cleanliness value, the controller 31 controls the cleaning and pressure maintaining assembly 10 to stop cleaning operation; when the cleanliness detected by the detection module 32 is greater than or equal to the cleanliness preset value, the controller 31 controls the cleaning and pressure maintaining assembly 10 to continue the cleaning operation.
In the field of industrial and mechanical instruments, cleanliness refers to the amount of dirt remaining on the surface of a part or product after cleaning. In this embodiment, the cleanliness of the pipeline refers to the number of the residual impurity particles and contaminants inside the pipeline after the pipeline is subjected to the cleaning and pressure maintaining test, and the number of the residual impurity particles and contaminants is in direct proportion to the cleanliness.
Specifically, the controller 31 in this embodiment is a computer, a preset cleanliness value is set in the computer, and the detection module 32 is connected to the computer. In the process of cleaning the pipeline to be tested by the cleaning and pressure maintaining assembly 10, the detection module 32 detects the cleanliness of the pipeline to be tested in real time and transmits the detection result to the computer in real time, the computer compares the real-time monitoring result with a preset cleanliness value, and if the real-time cleanliness is greater than or equal to the preset cleanliness value, the controller 31 controls the cleaning and pressure maintaining assembly 10 to stop cleaning operation; if the real-time cleanliness is smaller than the cleanliness preset value, the controller 31 controls the cleaning pressure maintaining assembly 10 to continue the cleaning operation until the real-time cleanliness is greater than or equal to the cleanliness preset value, and the cleaning operation is stopped.
Through the above arrangement, in the cleaning process of the cleaning pressure maintaining assembly 10, the air cleanliness in the pipeline to be tested is detected in real time, and is fed back in real time, so that the minimum cleaning times are ensured, the quality requirement of pipeline cleaning is met, and the cleaning efficiency is improved.
As shown in fig. 1, in the present embodiment, the cleanliness detection assembly 30 further includes a protection solenoid valve 33, and the protection solenoid valve 33 is opened or closed to achieve opening or closing of the cleanliness detection assembly 30.
In this embodiment, the protection solenoid valve 33 is disposed between the cleaning pressure maintaining assembly 10 and the controller 31, so that under the control of the controller 31, during the pipeline cleaning operation, the controller controls the protection solenoid valve 33 to open, so that the detection module 32 starts real-time detection. When the real-time cleanliness detected by the detection module 32 is greater than or equal to the cleanliness preset value, the controller 31 controls the protection solenoid valve 33 to close, so that the detection module 32 stops working.
The arrangement of the protection electromagnetic valve 33 ensures that the working mode of the whole cleanliness detection assembly 30 is safer and more controllable, and ensures the normal work of the whole pipeline cleaning detection device.
As shown in fig. 1, in the present embodiment, the cleanliness detection assembly further includes a check valve 34, and the check valve 34 is disposed between the protection solenoid valve 33 and the detection module 32.
Due to the arrangement of the one-way valve 34, air backflow in the pipeline to be tested is effectively prevented, and therefore the accuracy of the detection result is further guaranteed.
As shown in fig. 1, in the present embodiment, the cleaning pressure maintaining assembly 10 includes an air source 11, a filter 12, and an oil-water separator 13. The air source 11 is used for supplying air into the pipeline to be tested so as to clean the pipeline to be tested; a filter 12 for filtering impurities in the air fed from the air source 11; the oil-water separator 13 is used for separating water and oil stains in the air fed by the wind source 11; wherein, the air sent by the wind source 11 passes through the filter 12 and the oil-water separator 13 in sequence and cleans the pipeline to be tested.
In this embodiment, when the pressure maintaining assembly 10 is cleaned, the air source 11 supplies air into the pipeline to be tested, and the filter 12 and the oil-water separator 13 are used for filtering and separating oil and water from the air supplied by the air source 11, so as to avoid pollution to other structural components of the pressure maintaining assembly 10 during the exhaust cleaning process.
As shown in fig. 1, in the present embodiment, the cleaning pressure maintaining assembly 10 further includes an intake solenoid valve 14, a pressure sensor 15, and an exhaust solenoid valve 16. The air inlet electromagnetic valve 14 is connected with the air source 11 to control the air source 11 to supply air to the pipeline to be tested; the pressure sensor 15 is connected with the air inlet electromagnetic valve 14 to detect the pressure on the pipeline to be tested, and the pressure sensor 15 is provided with a pressure preset value; the exhaust electromagnetic valve 16 is connected with the pressure sensor 15; when the pressure sensor 15 detects that the pressure on the pipeline to be tested reaches a preset pressure value, the air inlet electromagnetic valve 14 is closed, and the air outlet electromagnetic valve 16 is opened to stop supplying air to the pipeline to be tested; when the pressure sensor 15 detects that the pressure on the pipeline to be tested is lower than the preset pressure value, the air inlet electromagnetic valve 14 is opened, and the air outlet electromagnetic valve 16 is closed, so that air is supplied to the pipeline to be tested.
Specifically, the pressure sensor 15 is used for detecting the pressure of the pipeline to be tested, and when the pressure sensor 15 detects that the pressure in the pipeline reaches the required cleaning pressure, the controller 31 controls the air inlet electromagnetic valve 14 to be closed and the air outlet electromagnetic valve 16 to be opened for air exhaust. When the pressure in the pipeline detected by the pressure sensor 15 drops to the lower limit value of the required cleaning pressure, the controller 31 controls the exhaust electromagnetic valve 16 to be closed, and the intake electromagnetic valve 14 to be opened to supply air to the pipeline to be tested, so that the cleaning operation is completed in a circulating mode.
Preferably, in the present embodiment, the cleaning and pressure maintaining assembly 10 further includes a muffler 17.
The above arrangement effectively reduces the noise generated in the cleaning operation of the cleaning and pressure maintaining assembly 10.
As shown in fig. 1, in the present embodiment, the booster assembly 20 includes a pilot-operated solenoid valve 21 and a booster pump 22. The booster pump 22 is connected with the pilot-operated electromagnetic valve 21 and is used for charging high-pressure air into the pipeline to be tested; when the detection device performs pressure detection, the pilot-operated electromagnetic valve 21 is opened, the booster pump 22 charges high-pressure air into the pipeline to be tested, and the pressure reduction amount in the pipeline to be tested, which is detected by the pressure sensor 15, is lower than the preset leakage amount within the preset time, so that the pressure detection of the pipeline to be tested is qualified.
In this embodiment, in order to ensure that the cleaned pipeline can work normally, pressure detection is performed after the cleaning operation is completed. When the pressure holding test is performed, the controller 31 controls the pilot type electromagnetic valve 21 to open, at this time, the air source 11 is distributed to the cleaned pipeline, and the pressure sensor 15 detects the pressure on the pipeline. When the pressure detected by the pressure sensor 15 reaches a preset value, air supply into the pipeline is stopped, the pressure in the pipeline is stabilized, and pressure maintaining timing is started. And in the specified time, the pressure drop value in the pipeline is not more than the preset leakage amount, and the pressure maintaining test is qualified.
Further, the pressurizing assembly 20 further comprises an air cylinder 23, and the air cylinder 23 is connected with the pressurizing pump 22 to pressurize the pressurizing pump 22 smoothly.
The arrangement ensures the high-pressure air charging stability of the booster pump 22.
The embodiment also provides a tooling trolley which comprises a trolley body and a pipeline cleaning and detecting device arranged in the trolley body, wherein the pipeline cleaning and detecting device is the pipeline cleaning and testing device.
In this embodiment, owing to set up the cleanliness determine module to when treating the test pipeline and wasing the operation, can treat the cleanliness of test pipeline in real time and detect, with the cleanliness of treating the test pipeline stop to take the cleaning operation of wasing the pipeline when satisfying the default, under the prerequisite of the cleaning quality of assurance pipeline, improved the cleaning efficiency of pipeline greatly, shortened the washing cycle, the cost is reduced. Further, in this embodiment, wash detection device with whole pipeline and concentrate on arranging a frock dolly, make whole compact structure. And the frock dolly is movably to be set up, makes things convenient for the removal transportation and the depositing of whole device, and the flexibility is high.
Preferably, be equipped with a plurality of pipelines on the frock dolly and wash detection device, a plurality of pipelines wash detection device can wash the detection to a plurality of pipelines of waiting to test simultaneously.
A plurality of pipelines on the frock dolly wash detection device mutually independent, can satisfy the test demand of a plurality of pipelines simultaneously, have effectively improved the reliability of device, have improved experimental efficiency.
Of course, in an alternative embodiment not shown in the drawings, the pipeline cleaning and detecting device on the tool trolley can be expanded as required to match with the working environment, so that the application range of the tool trolley is widened.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
due to the fact that the cleanliness detection assembly is arranged, when the pipeline to be tested is cleaned, the cleanliness of the pipeline to be tested can be detected in real time, the cleaning operation for cleaning the pipeline is stopped when the cleanliness of the pipeline to be tested meets a preset value, the cleaning efficiency of the pipeline is greatly improved on the premise that the cleaning quality of the pipeline is guaranteed, the cleaning period is shortened, and the cost is reduced. Compared with the prior art, when the pipeline is cleaned, the cleaning and blowing frequency of the pipeline to be tested is determined as 100 times, the cleaning quality of the cleaned pipeline cannot be judged, and whether the preset cleaning and blowing frequency is too much or not cannot be judged.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. The utility model provides a pipeline washs detection device for treat that experimental pipeline washs the cleaning quality of pressurize test and detection pipeline, its characterized in that, pipeline washs detection device includes:
the cleaning and pressure maintaining assembly (10) is used for cleaning and maintaining the pressure of the pipeline to be tested;
the pressurization assembly (20) is connected with the cleaning and pressure maintaining assembly (10), and the pressurization assembly (20) is used for carrying out pressure detection on the pipeline to be tested and filling air into the pipeline to be tested so that the pressure in the pipeline to be tested meets the requirement of a cleaning and pressure maintaining test;
the cleanliness detection assembly (30) is used for detecting the cleanliness of the pipeline to be tested in the process that the cleaning pressure maintaining assembly (10) cleans the pipeline to be tested, so that the cleaning operation of the pipeline to be tested is stopped when the cleanliness of the pipeline to be tested meets a preset value.
2. The line wash detection device according to claim 1, wherein the cleanliness detection assembly (30) comprises:
the controller (31) is connected with the cleaning and pressure maintaining assembly (10), and a preset cleanliness value is arranged in the controller (31);
the detection module (32) is connected with the controller (31), the controller (31) controls the detection module (32) to detect the cleanliness of the pipeline to be tested, and when the cleanliness detected by the detection module (32) is smaller than the preset cleanliness value, the controller (31) controls the cleaning and pressure maintaining assembly (10) to stop cleaning operation; when the cleanliness detected by the detection module (32) is greater than or equal to the cleanliness preset value, the controller (31) controls the cleaning and pressure maintaining assembly (10) to continue cleaning.
3. The line wash detection device according to claim 2, wherein the cleanliness detection assembly (30) further comprises a protection solenoid valve (33), and the protection solenoid valve (33) is opened or closed to achieve opening or closing of the cleanliness detection assembly (30).
4. The line wash detection device according to claim 3, characterized in that the cleanliness detection assembly further comprises a one-way valve (34), the one-way valve (34) being arranged between the protection solenoid valve (33) and the detection module (32).
5. The line wash detection device according to claim 1, wherein the wash pressure maintaining assembly (10) comprises:
the air source (11) is used for supplying air into the pipeline to be tested so as to clean the pipeline to be tested;
a filter (12) for filtering impurities in the air fed by the air source (11);
the oil-water separator (13) is used for separating water and oil stains in the air fed by the air source (11);
the air fed by the air source (11) sequentially passes through the filter (12) and the oil-water separator (13) and then cleans the pipeline to be tested.
6. The line wash detection device according to claim 5, wherein the wash pressure maintaining assembly (10) further comprises:
the air inlet electromagnetic valve (14) is connected with the air source (11) to control the air source (11) to supply air to the pipeline to be tested;
the pressure sensor (15) is connected with the air inlet electromagnetic valve (14) to detect the pressure on the pipeline to be tested, and a pressure preset value is set on the pressure sensor (15);
an exhaust solenoid valve (16) connected to the pressure sensor (15);
when the pressure sensor (15) detects that the pressure on the pipeline to be tested reaches the preset pressure value, the air inlet electromagnetic valve (14) is closed, and the air outlet electromagnetic valve (16) is opened to stop supplying air to the pipeline to be tested; when the pressure sensor (15) detects that the pressure on the pipeline to be tested is lower than the preset pressure value, the air inlet electromagnetic valve (14) is opened, and the air outlet electromagnetic valve (16) is closed so as to supply air to the pipeline to be tested.
7. The line wash detection device according to claim 6, wherein the wash pressure maintaining assembly (10) further comprises a muffler (17).
8. The line wash detection device of claim 6, wherein the pressure boost assembly (20) comprises:
a pilot type electromagnetic valve (21);
the booster pump (22) is connected with the pilot type electromagnetic valve (21) and is used for charging high-pressure air into the pipeline to be tested;
when the detection device performs pressure detection, the pilot-operated electromagnetic valve (21) is opened, the booster pump (22) charges high-pressure air into the pipeline to be tested, and the pressure reduction in the pipeline to be tested, which is detected by the pressure sensor (15), is lower than a preset leakage amount within a preset time, so that the pressure detection of the pipeline to be tested is qualified.
9. The line wash detection device according to claim 8, wherein the boost assembly (20) further comprises an air reservoir (23), the air reservoir (23) being connected to the boost pump (22) to smooth the boost of the boost pump (22).
10. A tooling trolley comprises a trolley body and a pipeline cleaning and detecting device arranged in the trolley body, and is characterized in that the pipeline cleaning and detecting device is the pipeline cleaning and detecting device according to any one of claims 1 to 9.
11. The tooling trolley according to claim 10, wherein a plurality of pipeline cleaning and detecting devices are arranged on the tooling trolley, and the pipeline cleaning and detecting devices can simultaneously clean and detect a plurality of pipelines to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920472757.9U CN210775049U (en) | 2019-04-09 | 2019-04-09 | Pipeline cleaning and detecting device and tool trolley with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920472757.9U CN210775049U (en) | 2019-04-09 | 2019-04-09 | Pipeline cleaning and detecting device and tool trolley with same |
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| Publication Number | Publication Date |
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| CN210775049U true CN210775049U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920472757.9U Active CN210775049U (en) | 2019-04-09 | 2019-04-09 | Pipeline cleaning and detecting device and tool trolley with same |
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| Country | Link |
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| CN (1) | CN210775049U (en) |
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