Pipeline inspection switching device and pipeline inspection method

Abstract

This application relates to a pipeline testing switching device and a pipeline testing method. The switching device includes a support, a first air source block, a second air source block, and a switching module. The top plate of the support has a first connecting hole and a second connecting hole. The first air source block has a first air inlet communicating with a first testing device and a first air outlet communicating with the first connecting hole. The second air source block has a second air inlet communicating with a second testing device and a second air outlet communicating with the second connecting hole. The switching module has a first air guide hole, a second air guide hole, and an air receiving hole communicating with each other. The air receiving hole communicates with the workpiece being tested. The switching module has a first testing position and a second testing position. In the first testing position, the first air guide hole is communicating with the first connecting hole, and the top plate can close the second air guide hole. In the second testing position, the second air guide hole is communicating with the second connecting hole, and the top plate can close the first air guide hole. This switching device can perform multiple types of tests at the same workstation.

Description

Technical Field

[0001] This application relates to the field of pipeline testing technology, and in particular to a pipeline testing switching device and a pipeline testing method. Background Technology

[0002] During the manufacturing process, pipelines are prone to issues such as poor sealing, dents, and blockages. Therefore, to ensure their long-term effective service life, pipelines typically undergo sealing and flow tests before leaving the factory after production.

[0003] Generally, different types of testing for pipeline products are performed at different workstations. Therefore, switching workstations to perform different types of testing usually requires disassembling and reassembling the product, which is not conducive to improving testing efficiency. Summary of the Invention

[0004] Therefore, it is necessary to provide a pipeline testing switching device and pipeline testing method that can perform multiple types of tests at the same workstation to improve the testing efficiency of the workpiece.

[0005] The technical solution is as follows:

[0006] Firstly, a pipeline detection and switching device is provided, comprising:

[0007] The bracket includes a top plate, and the top plate is provided with a through first connecting hole and a second connecting hole at intervals;

[0008] The gas source module includes a first gas source block and a second gas source block, both of which are located on one side of the top plate. The first gas source block has a first air inlet and a first air outlet that are connected to each other. The first air inlet is used to communicate with a first detection device, and the first air outlet is connected to a first connecting hole. The second gas source block has a second air inlet and a second air outlet that are connected to each other. The second air inlet is used to communicate with a second detection device, and the second air outlet is connected to a second connecting hole.

[0009] A switching module is located on the other side of the top plate and has interconnected first air guide holes, second air guide holes, and air receiving holes. The openings of the first air guide holes and the second air guide holes are both opposite to the top plate. The air receiving holes are used to communicate with the workpiece being tested. The switching module has a first detection position and a second detection position, which are spaced apart. In the first detection position, the first air guide hole is connected to the first connecting hole, and the top plate blocks the second air guide hole. In the second detection position, the second air guide hole is connected to the second connecting hole, and the top plate blocks the first air guide hole.

[0010] A moving module is connected to the switching module and is used to move the switching module between the first detection position and the second detection position.

[0011] In the aforementioned pipeline switching device, since the first air inlet is connected to the first detection device, the second air inlet is connected to the second detection device, the first air outlet is connected to the first connecting hole, the second air outlet is connected to the second connecting hole, and the workpiece under test is connected to the air inlet of the switching module, and when the switching module is in the first detection position, the first air guide hole of the switching module is connected to the first connecting hole, and the second air guide hole is blocked; when the switching module is in the second detection position, the second air guide hole of the switching module is connected to the second connecting hole, and the first air guide hole is blocked, therefore, when the switching module is in the first detection position, the first detection device can connect to the workpiece under test through the first air inlet, the first air outlet, the first connecting hole, the first air guide hole, and the air inlet to form a first detection loop, thereby enabling the first detection device to perform a first type of detection on the workpiece under test; when the switching module is in the second detection position, the second detection device can connect to the workpiece under test through the second air inlet, the second air outlet, the second connecting hole, the second air guide hole, and the air inlet to form a second detection loop, thereby enabling the second detection device to perform a second type of detection on the workpiece under test. Therefore, the switching module can act as an intermediate bridge, enabling the workpiece under test to connect to both the first and second detection devices, allowing it to switch between the first and second type of detection, thus achieving multiple types of detection for the workpiece. Since the moving module drives the switching module to move between the first and second detection positions, the switching module can reliably switch between the first and second type of detection under the drive of the moving module. Therefore, through this pipeline detection switching device, the workpiece can undergo multiple types of detection at the same station, avoiding the workpiece disassembly and assembly operations required for switching stations, effectively improving detection efficiency.

[0012] The technical solution will be further explained below:

[0013] In one embodiment, the switching module further has a first positioning position and a second positioning position, the first positioning position being spaced apart from the first detection position, the second positioning position being spaced apart from the second detection position, and the top plate being spaced apart from the switching module at both the first positioning position and the second positioning position. The moving module includes a first driving component and a second driving component, the first driving component and the second driving component being drivenly connected, the second driving component being drivenly connected to the switching module, and the switching module being able to move between the first positioning position and the second positioning position under the drive of the first driving component. The second driving component is used to drive the switching module to move between the first positioning position and the first detection position, and also to drive the switching module to move between the second positioning position and the second detection position.

[0014] In one embodiment, the bracket further includes a base plate and a support column, the base plate and the top plate being spaced apart along a first direction, and the support column being connected between the base plate and the top plate to form a workpiece cavity; the switching module and the moving module are both disposed in the workpiece cavity, the first detection position and the first positioning position are spaced apart and opposite to each other along the first direction, the second detection position and the second positioning position are spaced apart and opposite to each other along the first direction, the first positioning position and the second positioning position are spaced apart along the second direction, the switching module is capable of moving along the second direction between the first positioning position and the second positioning position under the drive of the first driving component, the second driving component is used to drive the switching module to move along the first direction between the first positioning position and the first detection position, and also to drive the switching module to move along the first direction between the second positioning position and the second detection position, wherein the first direction and the second direction are arranged at an angle.

[0015] In one embodiment, the bottom plate is provided with a slide rail extending in a second direction on the side facing the top plate. The first driving component includes a first driving member and a sliding seat that are driven together. The first driving member is disposed on the bottom plate, and the second driving component is disposed on the sliding seat. The sliding seat is slidably engaged with the slide rail. The sliding seat can drive the switching module to move in the second direction between the first position and the second position under the drive of the first driving member.

[0016] And / or, the pipeline detection switching device includes a first limiting member and a second limiting member, both of which are disposed in the workpiece cavity and are spaced apart in the second direction. In the first position, the sliding seat abuts against the first limiting member, and in the second position, the sliding seat abuts against the second limiting member.

[0017] And / or, the pipeline detection switching device further includes a controller, a first sensor, and a second sensor. The first sensor and the second sensor are both disposed in the workpiece cavity. The controller is electrically connected to the first sensor, the second sensor, the first drive assembly, and the second drive assembly. When the first sensor detects that the switching module has entered the first position, the controller can control the first drive assembly to stop driving and control the second drive assembly to start so that the switching module moves along the first direction to the first detection position. The controller can also control the first drive assembly to stop driving and control the second drive assembly to start so that the switching module moves along the first direction to the second detection position when the second sensor detects that the switching module has entered the second position.

[0018] In one embodiment, the second driving component includes a second driving member and a lifting seat connected by a drive. The second driving member is disposed on the first driving component, and the lifting seat is connected to the switching module. Under the drive of the second driving member, the lifting seat can drive the switching module to move along the first direction between the first positioning position and the first detection position, and can also drive the switching module to move along the first direction between the second positioning position and the second detection position.

[0019] In one embodiment, the second drive assembly further includes a slide rod and a sleeve, one end of the slide rod being connected to the lifting seat, the other end of the slide rod extending along the first direction, and the sleeve being disposed on the second drive member and slidably sleeved on the outer periphery of the slide rod.

[0020] In one embodiment, the gas source module further includes a flow meter, the inlet of which is connected to the second detection device, and the outlet of which is connected to the second inlet.

[0021] And / or, the opening edge of the first air guide hole is provided with a first sealing element, and the opening edge of the second air guide hole is provided with a second sealing element. In both the first detection position and the second detection position, the top plate can be sealed and fitted with the first sealing element and the second sealing element.

[0022] In one embodiment, the first air source block is provided with an air inlet valve and an air outlet valve, both of which are connected between the first air inlet and the first air outlet.

[0023] In one embodiment, there are multiple first air outlets, multiple second air outlets, multiple second air inlets, multiple first connecting holes, multiple second connecting holes, multiple air receiving holes, multiple first air guide holes, and multiple second air guide holes. Each first air outlet can connect to the first air inlet, and each first air outlet and the first air inlet are provided with an air intake valve and an exhaust valve. The first air outlet is connected to the first connecting hole in a one-to-one correspondence. The second air outlet is connected to the second air inlet and the second connecting hole in a one-to-one correspondence. The air receiving hole is connected to the first air guide hole and the second air guide hole in a one-to-one correspondence. In the first detection position, the first connecting hole is connected to the first air guide hole in a one-to-one correspondence, and the top plate can close multiple second air guide holes. In the second detection position, the second connecting hole is connected to the second air guide hole in a one-to-one correspondence, and the top plate can close multiple first air guide holes.

[0024] Secondly, a pipeline inspection method is also provided, which uses any of the above-mentioned pipeline inspection switching devices for inspection, including the following steps:

[0025] The moving module drives the switching module to move to the first detection position;

[0026] The first detection device performs the first type of detection on the workpiece being tested;

[0027] The moving module drives the switching module to move to the second detection position;

[0028] The second detection device performs a second type of detection on the workpiece being tested.

[0029] In the aforementioned pipeline inspection method, the switching module, driven by the moving module, can move not only to the first inspection position but also to the second inspection position. At the first inspection position, the first inspection device can perform a first type of inspection on the workpiece, and at the second inspection position, the second inspection device can perform a second type of inspection. Therefore, the switching module acts as an intermediate bridge, allowing the workpiece to connect to both the first and second inspection devices, enabling it to switch between first and second type inspections, thus achieving multiple types of inspections on the workpiece. Consequently, this pipeline inspection method allows the workpiece to undergo multiple types of inspections at the same station, avoiding the additional workpiece disassembly and assembly operations required for station switching and effectively improving inspection efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the pipeline detection and switching device in one embodiment.

[0031] Figure 2 This is a schematic diagram of the pipeline detection and switching device in another embodiment.

[0032] Figure 3 This is a schematic diagram of the switching module and the top plate in one embodiment.

[0033] Figure 4 This is a schematic diagram of the switching module in one embodiment.

[0034] Figure 5 This is a flowchart of a pipeline inspection method in one embodiment.

[0035] Explanation of reference numerals in the attached figures:

[0036] 100. Pipeline inspection and switching device; 1. Bracket; 1a. Workpiece cavity; 11. Top plate; 111. First connecting hole; 112. Second connecting hole; 12. Support column; 13. Base plate; 131. Slide rail; 2. Air source module; 21. First air source block; 211. First air inlet; 212. Air inlet valve; 213. Exhaust valve; 22. Second air source block; 221. Second air inlet; 23. Flow meter; 3. Switching module; 31. Air inlet; 32. First air guide. 321. Hole; 33. First seal; 331. Second vent; 331. Second seal; 4. Moving module; 41. First drive assembly; 411. First drive component; 412. Sliding seat; 42. Second drive assembly; 421. Lifting seat; 422. Sleeve; 423. Slide rod; 424. Second drive component; 51. First limiting component; 52. Second limiting component; 61. First sensor; 62. Second sensor; S1. Second direction; S2. First direction. Detailed Implementation

[0037] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0038] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0043] See Figures 1 to 3 An embodiment of this application provides a pipeline detection and switching device 100, including a support 1, a gas source module 2, a switching module 3, and a moving module 4. Wherein:

[0044] The support 1 includes a top plate 11, which has a through first connecting hole 111 and a second connecting hole 112 spaced apart. The air source module 2 includes a first air source block 21 and a second air source block 22, which are both located on one side of the top plate 11. The first air source block 21 has a first air inlet 211 and a first air outlet, which are connected. The first air inlet 211 is used to connect with the first detection device, and the first air outlet is connected with the first connecting hole 111. The second air source block 22 has a second air inlet 221 and a second air outlet, which are connected. The second air inlet 221 is used to connect with the second detection device, and the second air outlet is connected with the second connecting hole 112. The switching module 3 is located on the other side of the top plate 11 and has a first air guide hole 32, a second air guide hole 33 and an air receiving hole 31 that are connected to each other. The openings of the first air guide hole 32 and the second air guide hole 33 are both opposite to the top plate 11. The air receiving hole 31 is used to connect with the workpiece being tested. The switching module 3 has a first detection position and a second detection position. In the first detection position, the first air guide hole 32 is connected to the first connecting hole 111, and the top plate 11 blocks the second air guide hole 33. In the second detection position, the second air guide hole 33 is connected to the second connecting hole 112, and the top plate 11 blocks the first air guide hole 32. The moving module 4 is drivenly connected to the switching module 3 and is used to drive the switching module 3 to move between the first detection position and the second detection position.

[0045] In the aforementioned pipeline switching device, since the first air inlet 211 is connected to the first detection device, the second air inlet 221 is connected to the second detection device, the first air outlet is connected to the first connecting hole 111, the second air outlet is connected to the second connecting hole 112, and the workpiece being tested is connected to the air inlet 31 of the switching module 3, and when the switching module 3 is in the first detection position, the first air guide hole 32 of the switching module 3 is connected to the first connecting hole 111, and the second air guide hole 33 is blocked; when the switching module 3 is in the second detection position, the second air guide hole 33 of the switching module 3 is connected to the second connecting hole 112, and the first air guide hole 32 is blocked, therefore, when the switching module 3 is in the second detection position, the workpiece being tested is connected to the air inlet 31 of the switching module 3. When the switching module 3 is in the first detection position, the first detection device can connect to the workpiece under test through the first air inlet 211, the first air outlet, the first connecting hole 111, the first air guide hole 32, and the air receiving hole 31 to form a first detection loop, thereby enabling the first detection device to perform a first type of detection on the workpiece under test. When the switching module 3 is in the second detection position, the second detection device can connect to the workpiece under test through the second air inlet 221, the second air outlet, the second connecting hole 112, the second air guide hole 33, and the air receiving hole 31 to form a second detection loop, thereby enabling the second detection device to perform a second type of detection on the workpiece under test. Therefore, the switching module 3 can act as an intermediate bridge, allowing the workpiece under test to be connected to both the first and second detection devices, so that the workpiece under test can switch between the first type of detection and the second type of detection, thereby realizing multiple types of detection on the workpiece under test. Among them, since the moving module 4 can drive the switching module 3 to move between the first detection position and the second detection position, the switching module 3 can reliably switch between the first type of detection and the second type of detection under the drive of the moving module 4. Therefore, through this pipeline inspection switching device 100, the workpiece under test can undergo multiple types of inspections at the same station, thereby avoiding the workpiece disassembly and assembly operations required for switching stations and effectively improving inspection efficiency. Furthermore, it avoids the need to transport the workpiece between different stations, reducing inspection costs and preventing workpiece defects caused by improper handling.

[0046] The testing instruments in the first and second testing devices connected to the pipeline testing switching device 100 can be adjusted according to the actual needs of the product. This allows the pipeline testing switching device 100 to adjust the testing type according to the product requirements. For example, for air conditioning pipelines, the pipeline testing switching device 100 can switch between flow testing and sealing testing; or, for products requiring sealing testing, it can switch between low-pressure and high-pressure sealing testing; or, for products requiring flow testing, it can switch between low-flow and high-flow testing. This enhances the flexibility and compatibility of the pipeline testing switching device 100. Furthermore, the pipeline testing switching device 100 can be directly connected to automated equipment for automatic testing, or it can be directly connected to instruments for independent use with manual assistance.

[0047] Schematic illustration: The first detection device may include a leak detector with an air source. Thus, when the switching module 3 is in the first detection position, the airtightness of the workpiece can be detected by the first detection device. Specifically, when the switching device is in the first detection position, the end of the workpiece being tested furthest from the air inlet 31 is sealed, and the leak detector is turned on, allowing gas from the air source to enter the switching module 3 via the first air source block 21, and then into the workpiece being tested. After inflation is complete, the air intake is stopped, and the detection end of the first detection device performs a sealing test on the workpiece being tested (e.g., detecting whether the pressure inside the workpiece changes within a predetermined time period), to determine whether the airtightness of the workpiece meets the requirements based on the test results. Thus, compared to the traditional water-based leak detection method of directly sealing both ends of a pipe and placing it in water, and detecting the airtightness of the workpiece by observing whether bubbles are generated, this leak detection method saves pipe drying time and helps improve detection efficiency.

[0048] Schematic illustration: The second detection device can be a flow rate detection device. Thus, when the switching module 3 is in the second detection position, the second detection device can detect the flowability of the workpiece by detecting the gas flow rate. The second detection device may include, for example, a gas source, a pressure regulating valve or an electrically controlled valve, a pressure gauge, a valve, and a flow meter 23 connected in sequence to the second air inlet 221. Specifically, when the switching module 3 is in the second detection position, the end of the workpiece away from the air inlet 31 is kept unblocked, thereby opening the valve located on the air inlet side of the flow meter 23. Then, the pressure of the second detection circuit is adjusted through the pressure regulating valve or the electrically controlled valve, and the pressure on the pressure gauge is observed. Adjustment is stopped when the target pressure is reached, and the reading on the flow meter 23 is then read to determine whether the flowability of the pipeline meets the requirements. Thus, compared to the traditional pressure comparison method that detects the flowability of the workpiece by comparing the pressure between the inlet and outlet, the gas flow rate test results are not affected by external gas pressure fluctuations, thereby more effectively ensuring the reliability of the test results.

[0049] In one embodiment, combined Figure 1 and Figure 2 As shown, the switching module 3 also has a first positioning position and a second positioning position. The first positioning position is spaced apart from the first detection position, and the second positioning position is spaced apart from the second detection position. At both the first and second positioning positions, the top plate 11 is spaced apart from the switching module 3. The moving module 4 includes a first driving component 41 and a second driving component 42, which are drivenly connected. The second driving component 42 is drivenly connected to the switching module 3. The switching module 3 can move between the first positioning position and the second positioning position under the drive of the first driving component 41. The second driving component 42 is used to drive the switching module 3 to move between the first positioning position and the first detection position, and also to drive the switching module 3 to move between the second positioning position and the second detection position. Thus, through the cooperation of the first driving component 41 and the second driving component 42, the switching module 3 can move sequentially between the first detection position, the first positioning position, the second positioning position, and the second detection position. Since the switching module 3 is spaced apart from the top plate 11 in both the first and second positioning positions, the indirect movement of the switching module 3 between the first and second detection positions avoids friction between the switching module 3 and the top plate 11 during movement, effectively protecting the switching module 3 and preventing damage. Simultaneously, it ensures that the switching module 3 can connect the workpiece to different detection devices for various types of testing.

[0050] Indicative, combined Figure 1 and Figure 2 As shown, during testing, the first drive assembly 41 can be driven first to move the switching module 3 to the first positioning position. Then, the second drive assembly 42 can be driven to move the switching module 3 closer to the top plate 11 and from the first positioning position to the first detection position, so that the workpiece under test can be connected to the first detection device for first-type testing. After the first-type testing is completed, the second drive assembly 42 can be driven to move the switching module 3 away from the top plate 11, moving it from the first detection position to the first positioning position. Then, the first drive assembly 41 can be driven to move the switching module 3 from the first positioning position to the second positioning position. Finally, the second drive assembly 42 can be driven to move the switching module 3 from the second positioning position to the second detection position, so that the workpiece under test can be connected to the second detection device for second-type testing.

[0051] In other embodiments, the second type of detection can be performed first and then the first type of detection. For example, the position switching of the switching module 3 during the detection process can be sequentially the second position, the second detection position, the second position, the first position and the first detection position. The specific movement process will not be described in detail.

[0052] Furthermore, in one embodiment, such as Figure 1 and Figure 2As shown, the bracket 1 also includes a base plate 13 and a support column 12. The base plate 13 and the top plate 11 are spaced apart along the first direction S2. The support column 12 is connected between the base plate 13 and the top plate 11 to form a workpiece cavity 1a. The switching module 3 and the moving module 4 are both located in the workpiece cavity 1a. The first detection position and the first positioning position are spaced apart and opposite to each other along the first direction S2. The second detection position and the second positioning position are spaced apart and opposite to each other along the first direction S2. The switching module 3 can move along the second direction S1 between the first positioning position and the second positioning position under the drive of the first driving component 41. The second driving component 42 is used to drive the switching module 3 to move along the first direction S2 between the first positioning position and the first detection position, and also to drive the switching module 3 to move along the first direction S2 between the second positioning position and the second detection position. The first direction S2 and the second direction S1 are set at an angle. Thus, driven by the first driving component 41, the switching module 3 can move to a first positioning position relative to the first detection position and a second positioning position relative to the second detection position. This allows the switching module 3 to accurately enter the first detection position for first-type detection when the second driving component 42 is driven at the first positioning position, and to accurately enter the second detection position for second-type detection when the second driving component 42 is driven at the second positioning position. Therefore, this pipeline detection switching device 100 can achieve the effect of performing multiple types of tests at the same workstation, improving detection efficiency.

[0053] In a schematic manner, the first direction S2 is set perpendicular to the second direction S1.

[0054] Furthermore, in one embodiment, such as Figure 1 and Figure 2 As shown, the bottom plate 13 has a slide rail 131 extending along the second direction S1 on the side facing the top plate 11. The first drive assembly 41 includes a first drive member 411 and a sliding seat 412 connected by a drive. The first drive member 411 is located on the bottom plate, and the second drive assembly 42 is located on the sliding seat 412. The sliding seat 412 is slidably engaged with the slide rail 131. Under the drive of the first drive member 411, the sliding seat 412 can drive the switching module 3 to move between the first and second positioning positions along the second direction S1. In this way, the sliding engagement between the sliding seat 412 and the slide rail 131, as well as the guiding effect of the slide rail 131, ensures the stability of the sliding seat 412 when moving along the second direction S1. This ensures that the sliding seat 412 can accurately drive the switching module 3 to the first and second positioning positions under the drive of the first drive member 411, thereby ensuring that the switching module 3 can accurately move to the first and second detection positions under the drive of the second drive assembly 42, thus ensuring the reliability of the pipeline detection switching module 3.

[0055] Optionally, the first drive element 411 can be a telescopic cylinder.

[0056] Optionally, in one embodiment, such as Figure 1 and Figure 2 As shown, the pipeline inspection switching device 100 includes a first limiting member 51 and a second limiting member 52. Both the first limiting member 51 and the second limiting member 52 are disposed in the workpiece cavity 1a and spaced apart along the second direction S1. In the first position, the sliding seat 412 abuts against the first limiting member 51; in the second position, the sliding seat 412 abuts against the second limiting member 52. Thus, when the sliding seat 412, driven by the first driving member 411, drives the switching module 3 to reciprocate along the second direction S1, the sliding seat 412 can be accurately positioned at the first position opposite to the first detection position by abutting against the first limiting member 51, ensuring that the switching module 3 can reliably move along the first direction S2 to the first detection position for the first type of inspection. The sliding seat 412 can also be accurately positioned at the second position opposite to the second detection position by abutting against the second limiting member 52, ensuring that the switching module 3 can reliably move along the first direction S2 to the second detection position for the second type of inspection. Therefore, the arrangement of the first limiting member 51 and the second limiting member 52 helps to ensure the reliability of the pipeline detection switching device 100.

[0057] Optionally, in one embodiment, such as Figure 1 and Figure 2As shown, the pipeline detection switching device 100 also includes a controller, a first sensor 61, and a second sensor 62. Both the first sensor 61 and the second sensor 62 are located in the workpiece cavity 1a. The controller is electrically connected to the first sensor 61, the second sensor 62, the first drive assembly 41, and the second drive assembly 42. When the first sensor 61 detects that the switching module 3 has entered the first position, the controller can control the first drive assembly 41 to stop driving and control the second drive assembly 42 to start, causing the switching module 3 to move along the first direction S2 to the first detection position. The controller can also control the first drive assembly 41 to stop driving and control the second drive assembly 42 to start, causing the switching module 3 to move along the first direction S2 to the second detection position, when the second sensor 62 detects that the switching module 3 has entered the second position. Thus, when the sliding seat 412 moves the switching module 3 along the second direction S1 under the drive of the first driving member 411, the first sensor 61 can detect in real time whether the switching module 3 has entered the first position, and the second sensor 62 can detect in real time whether the switching module 3 has entered the first position, and feed the detection results back to the controller in real time, so that when the first sensor 61 detects that the switching module 3 has entered the first position, the controller can automatically drive the switching module 3 to move along the first direction S2 from the first position to the first detection position to perform the first type of detection; and when the second sensor 62 detects that the switching module 3 has entered the second position, the controller can automatically drive the switching module 3 to move along the first direction S2 from the second position to the second detection position to perform the second type of detection. Therefore, the configuration of the first sensor 61 and the second sensor 62 helps the controller accurately determine whether the switching module 3 has precisely reached the first and second positions. This helps the controller automatically control the switching module 3 to move from the first position to the first detection position and from the second position to the second detection position, so as to ensure the effective detection. Thus, this design can improve the automation and reliability of the pipeline detection switching device 100 and improve detection efficiency.

[0058] As an illustration, the location of the controller can be designed as needed. For example, the controller can be placed in the workpiece cavity 1a.

[0059] Furthermore, in one embodiment, such as Figure 1 and Figure 2As shown, the second drive assembly 42 includes a second drive member 424 and a lifting seat 421 connected by a drive. The second drive member 424 is disposed on the first drive assembly 41, and the lifting seat 421 is connected to the switching module 3. Under the drive of the second drive member 424, the lifting seat 421 can drive the switching module 3 to move along the first direction S2 between the first positioning position and the first detection position, and can also drive the switching module 3 to move along the first direction S2 between the second positioning position and the second detection position. Thus, when the sliding seat 412 drives the switching module 3 to move to the first positioning position under the drive of the first drive member 411, the switching module 3 can move along the first direction S2 towards the top plate 11 under the action of the second drive member 424, so that the switching module 3 can move from the first positioning position to the first detection position for the first type of detection. After the test is completed, the switching module 3, under the action of the second driving member 424, moves away from the top plate 11 along the first direction S2, so that the switching module 3 moves from the first detection position to the first positioning position. Then, driven by the first driving member 411, the switching module 3 moves along the second direction S1 to the second positioning position, and then moves closer to the top plate 11 at the second positioning position to move to the second detection position for the second type of test. Therefore, this pipeline testing switching device 100 can achieve the effect of performing multiple types of tests at the same workstation, thereby improving testing efficiency.

[0060] Optionally, the second drive element 424 can be a telescopic cylinder.

[0061] Indicatively, the controller is electrically connected to both the first drive unit 411 and the second drive unit 424.

[0062] Optionally, in one embodiment, such as Figure 1 As shown, the second drive assembly 42 also includes a slide rod 423 and a sleeve 422. One end of the slide rod 423 is connected to the lifting seat 421, and the other end of the slide rod 423 extends along the first direction S2. The sleeve 422 is disposed on the second drive member 424 and is slidably sleeved on the outer periphery of the slide rod 423. In this way, the sliding cooperation between the sleeve 422 and the slide rod 423 ensures the stability of the lifting seat 421 when it moves along the first direction S2, so that the lifting seat 421 can reliably drive the switching module 3 to move along the first direction S2. This allows the switching module 3 to move between the first positioning position and the first detection position, and between the second positioning position and the second detection position, thus ensuring the reliability of the pipeline detection switching module 3.

[0063] Optional, such as Figure 1As shown, there can be multiple sleeves 422 and multiple slide rods 423. Multiple slide rods 423 are arranged at intervals along the outer periphery of the lifting seat 421, and the sleeves 422 and slide rods 423 are slidably connected in a one-to-one correspondence. Preferably, there are two sleeves 422 and two slide rods 423, and the two slide rods 423 are respectively connected to the two sides of the lifting seat 421.

[0064] In one embodiment, such as Figure 2 As shown, the air source module 2 also includes a flow meter 23. The inlet end of the flow meter 23 is connected to the second detection device, and the outlet end of the flow meter 23 is connected to the second air inlet 221. Thus, when the second detection device is a flow testing device including an air source, a pressure regulating valve / electric control valve, a pressure gauge, and a valve, when the switching module 3 is in the second detection position, the second detection device can detect whether the flowability of the workpiece under test meets the requirements through the flow meter 23.

[0065] In one embodiment, combined Figures 1 to 4 As shown, the opening edge of the first air guide hole 32 is provided with a first sealing element 321, and the opening edge of the second air guide hole 33 is provided with a second sealing element 331. In the first detection position and the second detection position, the top plate 11 can seal with the first sealing element 321 and the second sealing element 331. Thus, when the switching module 3 is in the first detection position and the second detection position, the first sealing element 321 can seal the gap between the surface of the top plate 11 facing the switching module 3 and the opening edge of the first air guide hole 32, and the second sealing element 331 can seal the gap between the surface of the top plate 11 facing the switching module 3 and the opening edge of the second air guide hole 33, so as to prevent gas from leaking from the first air guide hole 32 and / or the second air guide hole 33 into the external environment during the detection process, thereby ensuring the reliability of the detection results of the pipeline detection switching module 3.

[0066] Indicatively, both the first sealing element 321 and the second sealing element 331 are O-rings. O-rings are characterized by their ability to create a planar seal. Thus, during the movement of the switching module 3 towards the top plate 11 along the first direction S2, when the switching module 3 is about to reach the first detection position, the surface of the top plate 11 opposite to the switching module 3 can contact and press the first seal 321 and the second seal 331, thereby enabling the first seal 321 to seal the connection between the first air guide hole 32 and the first connecting hole 111, and the surface of the top plate 11 can reliably block the second air guide hole 33 through the second seal 332, so as to avoid affecting the reliability of the detection results due to air leakage from the second air guide hole 33 during the first type of detection. Similarly, when the switching module 3 is about to reach the second detection position, the surface of the top plate 11 opposite to the switching module 3 can contact and press the first seal 321 and the second seal 331, thereby enabling the second seal 331 to seal the connection between the second air guide hole 33 and the second connecting hole 112, and the surface of the top plate 11 can reliably seal the first air guide hole 32 through the first seal 321, ensuring the reliability of the second type of detection.

[0067] In one embodiment, the first gas source block 21 is equipped with an inlet valve 212 and an exhaust valve 213, both of which are connected between the first inlet port 211 and the first outlet port. Thus, during the first type of detection, the inlet valve 212 can control the on / off state of the first detection circuit, thereby controlling the entry of gas into the workpiece being tested. After the detection is completed, the exhaust valve 213 can discharge the gas from the workpiece, facilitating the next detection of the workpiece.

[0068] Schematic, the intake valve 212 and exhaust valve 213 are electrically connected to the first detection device, so that when the first detection device is started to perform the first type of detection, the intake valve 212 can be automatically opened to facilitate the automated completion of the first type of detection. When the first type of detection is completed, the exhaust valve 213 can be automatically opened to exhaust the air under the control of the first detection device.

[0069] Furthermore, in one embodiment, combined with Figures 1 to 4As shown, there are multiple first air outlets, multiple second air outlets, multiple second air inlets 221, multiple first connecting holes 111, multiple second connecting holes 112, multiple air inlets 31, multiple first air guide holes 32, and multiple second air guide holes 33. Each first air outlet can connect to a first air inlet 211, and each first air outlet and first air inlet 211 is provided with an intake valve 212 and an exhaust valve 213. The first air outlet and the first connecting hole 111 correspond one-to-one. The system is interconnected, with the second air outlet 221 and the second connecting hole 112 connected one-to-one. The air inlet 31 is connected one-to-one with the first air guide hole 32 and the second air guide hole 33. In the first detection position, the first connecting hole 111 is connected one-to-one with the first air guide hole 32, and the top plate 11 can close multiple second air guide holes 33. In the second detection position, the second connecting hole 112 is connected one-to-one with the second air guide hole 33, and the top plate 11 can close multiple first air guide holes 32. Thus, the pipeline detection switching device 100 can detect multiple workpieces at a time, thereby improving detection efficiency.

[0070] The number of first air inlets 211 can be set as needed. For example, there can be multiple first air inlets 211, and each first air inlet 211 is connected to a first air outlet. Each first air inlet 211 is connected to a first detection device. In this way, the first detection device can perform first-type detection on the workpieces to be tested one by one. Alternatively, there can be only one first air inlet 211, and multiple first air inlets 211 are connected to the same first detection device. In this way, the first detection device can first perform first-type detection on multiple workpieces to be tested simultaneously, and determine whether multiple workpieces to be tested meet the detection requirements based on the detection results. If the detection results show that the workpieces do not meet the detection requirements, the first detection device, together with the air inlet valve 212 and the air outlet valve 213, is used to detect a single workpiece to determine which workpieces do not meet the requirements.

[0071] Optionally, in one embodiment, combining Figures 1 to 4As shown, the number of first air outlets, second air outlets, second air inlets 221, first connecting holes 111, second connecting holes 112, air inlets 31, first air guide holes 32, and second air guide holes 33 are all four. There are two first air inlets 211, one of which connects to two of the first air outlets, and the other connects to the other two first air outlets. Each first air outlet and its corresponding first air inlet 211 is equipped with an intake valve 212 and an exhaust valve 213. Thus, the pipeline inspection switching device 100 can inspect four workpieces at a time, thereby improving inspection efficiency. Specifically, when performing the first type of inspection on a workpiece, the first inspection device first simultaneously inspects two corresponding workpieces. If a problem that does not meet the inspection requirements is found, the first inspection device can then inspect one of the workpieces individually by opening and closing the intake valve 212 and the exhaust valve 213 to confirm the workpiece that does not meet the inspection requirements.

[0072] Combination Figures 1 to 3 As shown, this application also provides a pipeline inspection method, which uses the pipeline inspection switching device 100 in any of the above embodiments for inspection, including the following steps:

[0073] S1: The moving module 4 drives the switching module 3 to move to the first detection position. In this way, the first air guide hole 32 in the switching module 3 can be connected to the first connecting hole 111, and the second air guide hole 33 can be closed. Then, the workpiece under test can be connected to the first air outlet in the first air source block 21, so that the workpiece under test can form a complete detection circuit with the first detection device to facilitate the first type of detection.

[0074] S2: The first detection device performs a first type of detection on the workpiece. Thus, when the first detection device is activated, gas can enter the workpiece through the first air inlet 211, thereby enabling the first detection device to detect the workpiece and determine whether the workpiece meets the requirements of the first type of detection based on the detection results.

[0075] S3: The moving module 4 drives the switching module 3 to move to the second detection position. In this way, the second air guide hole 33 in the switching module 3 can be connected to the second connecting hole 112, and the second air guide hole 33 can be closed. Then, the workpiece under test can be connected to the second air outlet in the second air source block 22, so that the workpiece under test can form a complete detection circuit with the second detection device to facilitate the second type of detection.

[0076] S4: The second detection device performs a second type of detection on the workpiece. In this way, the first detection device allows gas to enter the workpiece through the second air inlet 221, thereby enabling the second detection device to detect the workpiece and determine whether the workpiece meets the requirements of the second type of detection based on the detection results.

[0077] In the aforementioned pipeline inspection method, the switching module 3, driven by the moving module 4, can move not only to the first inspection position but also to the second inspection position. At the first inspection position, the first inspection device can perform a first type of inspection on the workpiece, and at the second inspection position, the second inspection device can perform a second type of inspection. Therefore, the switching module 3 can act as an intermediate bridge, allowing the workpiece to connect to both the first and second inspection devices, enabling it to switch between the first and second types of inspection, thus achieving multiple types of inspection on the workpiece. Therefore, through this pipeline inspection method, the workpiece can undergo multiple types of inspection at the same station, avoiding the workpiece disassembly and assembly operations required for switching stations and effectively improving inspection efficiency.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A pipeline detection and switching device, characterized in that, include: The bracket includes a top plate, and the top plate is provided with a through first connecting hole and a second connecting hole at intervals; The gas source module includes a first gas source block and a second gas source block, both of which are located on one side of the top plate. The first gas source block has a first air inlet and a first air outlet that are connected to each other. The first air inlet is used to communicate with a first detection device, and the first air outlet is connected to a first connecting hole. The second gas source block has a second air inlet and a second air outlet that are connected to each other. The second air inlet is used to communicate with a second detection device, and the second air outlet is connected to a second connecting hole. A switching module is located on the other side of the top plate and has interconnected first air guide holes, second air guide holes, and air receiving holes. The openings of the first air guide holes and the second air guide holes are both opposite to the top plate. The air receiving holes are used to communicate with the workpiece being tested. The switching module has a first detection position and a second detection position, which are spaced apart. In the first detection position, the first air guide hole is connected to the first connecting hole, and the top plate blocks the second air guide hole. At the second detection position, the second air guide hole is connected to the second connecting hole, and the top plate blocks the first air guide hole; A moving module is driven to the switching module, and the moving module is used to drive the switching module to move between the first detection position and the second detection position; The switching module also has a first positioning position and a second positioning position. The first positioning position is spaced apart from the first detection position, and the second positioning position is spaced apart from the second detection position. At both the first and second positioning positions, the top plate is spaced apart from the switching module. The moving module includes a first driving component and a second driving component. The first driving component and the second driving component are drivenly connected, and the second driving component is drivenly connected to the switching module. The switching module can move between the first positioning position and the second positioning position under the drive of the first driving component. The second driving component is used to drive the switching module to move between the first positioning position and the first detection position, and also to drive the switching module to move between the second positioning position and the second detection position.

2. The pipeline detection and switching device according to claim 1, characterized in that, The first detection device includes a leak detector with a gas source.

3. The pipeline detection and switching device according to claim 1, characterized in that, The bracket also includes a base plate and a support column, the base plate and the top plate being spaced apart along a first direction, and the support column being connected between the base plate and the top plate to form a workpiece cavity; Both the switching module and the moving module are located in the workpiece cavity. The first detection position and the first positioning position are spaced apart and opposite to each other in the first direction. The second detection position and the second positioning position are spaced apart and opposite to each other in the first direction. The first positioning position and the second positioning position are spaced apart in the second direction. The switching module can move between the first positioning position and the second positioning position along the second direction under the drive of the first driving component. The second driving component is used to drive the switching module to move between the first positioning position and the first detection position along the first direction, and also to drive the switching module to move between the second positioning position and the second detection position along the first direction. The first direction and the second direction are set at an angle.

4. The pipeline detection and switching device according to claim 3, characterized in that, The bottom plate is provided with a slide rail extending in a second direction on the side facing the top plate. The first driving component includes a first driving member and a sliding seat that are driven together. The first driving member is disposed on the bottom plate, and the second driving component is disposed on the sliding seat. The sliding seat is slidably engaged with the slide rail. The sliding seat can drive the switching module to move in the second direction between the first position and the second position under the drive of the first driving member. And / or, the pipeline detection switching device includes a first limiting member and a second limiting member, both of which are disposed in the workpiece cavity and are spaced apart in the second direction. In the first position, the sliding seat abuts against the first limiting member, and in the second position, the sliding seat abuts against the second limiting member. And / or, the pipeline detection switching device further includes a controller, a first sensor, and a second sensor. The first sensor and the second sensor are both disposed in the workpiece cavity. The controller is electrically connected to the first sensor, the second sensor, the first drive assembly, and the second drive assembly. When the first sensor detects that the switching module has entered the first position, the controller can control the first drive assembly to stop driving and control the second drive assembly to start so that the switching module moves along the first direction to the first detection position. The controller can also control the first drive assembly to stop driving and control the second drive assembly to start so that the switching module moves along the first direction to the second detection position when the second sensor detects that the switching module has entered the second position.

5. The pipeline detection and switching device according to claim 3, characterized in that, The second driving component includes a second driving member and a lifting seat connected by a drive. The second driving member is disposed on the first driving component. The lifting seat is connected to the switching module. Under the drive of the second driving member, the lifting seat can drive the switching module to move along the first direction between the first positioning position and the first detection position, and can also drive the switching module to move along the first direction between the second positioning position and the second detection position.

6. The pipeline detection and switching device according to claim 5, characterized in that, The second drive assembly further includes a slide rod and a sleeve. One end of the slide rod is connected to the lifting seat, and the other end of the slide rod extends along the first direction. The sleeve is disposed on the second drive member and is slidably sleeved on the outer periphery of the slide rod.

7. The pipeline detection and switching device according to claim 1, characterized in that, The gas source module also includes a flow meter, the inlet of which is connected to the second detection device, and the outlet of which is connected to the second inlet. And / or, the opening edge of the first air guide hole is provided with a first sealing element, and the opening edge of the second air guide hole is provided with a second sealing element. In both the first detection position and the second detection position, the top plate can be sealed and fitted with the first sealing element and the second sealing element.

8. The pipeline detection and switching device according to claim 1, characterized in that, The first air source block is equipped with an air inlet valve and an air outlet valve, both of which are connected between the first air inlet and the first air outlet.

9. The pipeline detection and switching device according to claim 8, characterized in that, The number of first air outlets, second air outlets, second air inlets, first connecting holes, second connecting holes, air receiving holes, first air guide holes, and second air guide holes are all multiple. Each first air outlet can connect to the first air inlet, and each first air outlet and the first air inlet are provided with an air intake valve and an exhaust valve. The first air outlet is connected to the first connecting hole in a one-to-one correspondence. The second air outlet is connected to the second air inlet and the second connecting hole in a one-to-one correspondence. The air receiving hole is connected to the first air guide hole and the second air guide hole in a one-to-one correspondence. In the first detection position, the first connecting hole is connected to the first air guide hole in a one-to-one correspondence, and the top plate can close multiple second air guide holes. In the second detection position, the second connecting hole is connected to the second air guide hole in a one-to-one correspondence, and the top plate can close multiple first air guide holes.

10. A pipeline inspection method, comprising using the pipeline inspection switching device according to any one of claims 1 to 9, characterized in that, Includes the following steps: The moving module drives the switching module to move to the first detection position; The first detection device performs the first type of detection on the workpiece being tested; The moving module drives the switching module to move to the second detection position; The second detection device performs a second type of detection on the workpiece being tested.

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