Multi-functional test system for vacuum angle valve

Abstract

This application discloses a multifunctional testing system for vacuum angle valves. The testing system includes a pressure regulating module, a testing path, a negative pressure generating module, and a control module. The inlet of the pressure regulating module is connected to a pressurized gas supply module. The testing path includes a first electrically controlled valve, a second electrically controlled valve, a pressure sensing module, and a position sensing module, with the position sensing module corresponding to the angle valve under test. The negative pressure generating module is connected to the pipe outlet of the angle valve under test to evacuate the pipe. The control module is electrically connected to the pressure regulating module, the first electrically controlled valve, the second electrically controlled valve, the pressure sensing module, the negative pressure generating module, and the position sensing module. The negative pressure generating module of this application embodiment can evacuate the pipe outlet of the angle valve under test, thereby simulating the real-world operating environment of the angle valve and making the test data from the multifunctional testing system for vacuum angle valves more accurate.

Description

Technical Field

[0001] This application relates to the field of pneumatic angle valve testing technology, and in particular to a multifunctional testing system for vacuum angle valves. Background Technology

[0002] To meet the demands of practical applications, pneumatic angle valves require stringent technical specifications for their performance parameters. Therefore, the design and development of new pneumatic angle valves typically involves testing and evaluating performance parameters such as stroke, response time, control pressure, withstand pressure, and service life. Through product testing and multiple iterative optimizations during the R&D process, the expected specifications are achieved, thus providing a strong guarantee for the product's successful industrial production.

[0003] Most commonly used pneumatic angle valve performance testing equipment is single-function equipment, which can only test one specification of performance. If multiple performance parameters need to be tested, multiple testing equipment need to be purchased for each test item, requiring a dedicated laboratory for installation, which is expensive and takes up a lot of space. Summary of the Invention

[0004] This application provides an operation method for a multifunctional testing system for vacuum angle valves, which can perform multiple tests on the valve under test. The multifunctional testing system platform for vacuum angle valves occupies little space.

[0005] In a first aspect, embodiments of this application provide a multifunctional testing system for a vacuum angle valve. The multifunctional testing system includes a pressure regulating module, a testing path, a negative pressure generating module, and a control module. The inlet of the pressure regulating module is connected to a pressurized gas supply module. The testing path includes a first electrically controlled valve, a second electrically controlled valve, a pressure sensing module, and a position sensing module. The inlet of the first electrically controlled valve is connected to the outlet of the pressure regulating module, and the inlet of the second electrically controlled valve is connected to the outlet of the first electrically controlled valve. The outlet of the second electrically controlled valve is used to connect to the gas control end of the angle valve under test. The pressure sensing module is connected between the first electrically controlled valve and the second electrically controlled valve. The position sensing module is configured corresponding to the angle valve under test. The negative pressure generating module is connected to the pipeline outlet of the angle valve under test to evacuate the pipeline of the angle valve under test. The control module is electrically connected to the pressure regulating module, the first electrically controlled valve, the second electrically controlled valve, the pressure sensing module, the negative pressure generating module, and the position sensing module.

[0006] In some exemplary embodiments, the test path further includes: a third electrically controlled valve, the inlet of which is connected to the outlet of the pressure regulating module, the outlet of which is connected to the pipeline inlet of the angle valve under test, and the third electrically controlled valve is electrically connected to the control module; a fourth electrically controlled valve, the inlet of which is connected to the pipeline outlet of the angle valve under test, the outlet of which is connected to the negative pressure generating module, and the fourth electrically controlled valve is electrically connected to the control module; and a negative pressure sensing module, which is disposed at the inlet of the fourth electrically controlled valve and is electrically connected to the control module.

[0007] In some exemplary embodiments, there are multiple test paths, which are connected in parallel.

[0008] In some exemplary embodiments, the multifunctional testing system for the vacuum angle valve further includes: a pressure gauge connected between the pressurized gas supply module and the pressure regulating module; a shut-off valve connected between the pressure gauge and the pressure regulating module; and a vent valve connected to the outlet of the pressure regulating module.

[0009] In some exemplary embodiments, the control module includes a control unit and a touch screen, and the multi-functional testing system for the vacuum angle valve also includes an operation button and an emergency stop button, all of which are electrically connected to the control unit.

[0010] In some exemplary embodiments, the multifunctional testing system for the vacuum angle valve includes an outer casing, on which the touch screen, operation buttons, emergency stop button, pressure gauge, shut-off valve, and vent valve are all disposed. The pressure regulating module, the first electrically controlled valve, the second electrically controlled valve, the pressure sensing module, the third electrically controlled valve, the fourth electrically controlled valve, the negative pressure sensing module, and the negative pressure generating module are all disposed inside the outer casing.

[0011] In some exemplary embodiments, the position sensing module includes a laser sensor and a Hall sensor, the laser sensor being positioned opposite the actuation component of the angle valve under test, and the Hall sensor being positioned on the angle valve under test.

[0012] In some exemplary embodiments, the multifunctional testing system for the vacuum angle valve includes a machine base and a sliding module disposed on the machine base. The laser sensor is disposed on the sliding module and is positioned above the angle valve under test. The sliding module is used to adjust the position of the laser sensor relative to the angle valve under test.

[0013] In some exemplary embodiments, the sliding module includes: a vertical rod fixedly disposed on the machine base; a connecting block rotatably disposed on the vertical rod and slidably disposed on the vertical rod; a horizontal rod connected to the connecting block; a slider slidably disposed on the horizontal rod, and the laser sensor disposed on the slider.

[0014] In some exemplary embodiments, the multifunctional testing system for the vacuum angle valve further includes: a power module for supplying power to the multifunctional testing system for the vacuum angle valve; a first temperature sensor corresponding to the power module; a second temperature sensor corresponding to the negative pressure generating module; a first fan for suction; and a second fan for blowing air. When the temperature value of the first temperature sensor or the temperature value of the second temperature sensor exceeds a first threshold, both the first and second fans are activated; when the temperature values ​​of the first and second temperature sensors are below a second threshold, both the first and second fans are deactivated.

[0015] Beneficial effects:

[0016] 1. The multi-functional testing system for vacuum angle valves in this application embodiment can use a negative pressure generating module to evacuate the pipeline of the angle valve under test, thereby simulating the vacuum operating environment of the angle valve and making the test data of the multi-functional testing system for vacuum angle valves more accurate. Of course, the negative pressure generating module can also be turned off without evacuating the pipeline of the angle valve under test to simulate the normal pressure operating environment of the angle valve under test.

[0017] 2. The multifunctional testing system for vacuum angle valves in this application embodiment can perform stroke testing, response testing, control pressure testing, and fatigue testing on the valve under test. In other words, the multifunctional testing system integrates multiple performance testing functions, and the overall platform occupies a small space. During different performance testing processes, some pipelines and valves of the multifunctional testing system for vacuum angle valves in this application embodiment can be reused, thus saving pipelines and valves and reducing costs.

[0018] 3. Since the first solenoid valve does not require connection to multiple output ports, it can be a two-position two-way solenoid valve, thus saving costs. The second solenoid valve is a three-position five-way solenoid valve, meaning it has multiple air outlets, making it adaptable to pneumatic angle valves with one or two control ends, thus broadening its application range.

[0019] 4. The multi-functional testing system for the vacuum angle valve in this embodiment can pressurize the inlet of the valve under test by opening the third solenoid valve, and can evacuate the outlet of the valve under test by opening the fourth solenoid valve, thereby enabling pressure resistance testing of the valve under test.

[0020] 5. Each test path can test one angle valve under test, and multiple test paths can test multiple angle valves under test simultaneously, thereby improving testing efficiency and saving testing time.

[0021] 6. The pressure gauge is connected between the pressurized air supply module and the pressure regulating module, allowing for real-time monitoring of the air supply pressure in the multi-functional testing system of the vacuum angle valve to determine if the pressure is within acceptable limits. The shut-off valve can be closed to isolate the multi-functional testing system of the vacuum angle valve from the pressurized air supply module, facilitating maintenance and repair. When the multi-functional testing system of the vacuum angle valve stops operating, the pressure can be released by opening the vent valve, thus preventing the pipelines and valves of the multi-functional testing system from being under pressure for extended periods and extending the service life of the multi-functional testing system of the vacuum angle valve.

[0022] 7. Direct operation via the touchscreen facilitates human-machine interaction and reduces the need for physical buttons. For frequent operations, such as switching the angle valve under test or switching the main or initial test valve using buttons, the buttons are more efficient. The emergency stop button is used to stop the test in an emergency. In critical moments, pressing the emergency stop button is obviously faster than operating it on the touchscreen, thus reducing risk and minimizing losses.

[0023] 8. The pressure gauge is located on the outer surface of the enclosure for easy pressure monitoring. The shut-off valve and vent valve are also located on the outer surface of the enclosure for easy operation. The enclosure protects the internal components and also isolates noise, reducing operating noise.

[0024] 9. Laser sensors offer advantages such as non-contact, long-distance measurement, high speed, high accuracy, large measuring range, and strong resistance to photoelectric interference. Hall effect sensors enable non-contact measurement, reducing mechanical wear and avoiding errors introduced by contact. Hall effect sensors exhibit good adaptability and stability to environmental changes, such as temperature fluctuations and humidity variations, maintaining reliable performance over extended periods.

[0025] 10. The laser sensor can rotate around the vertical rod with the connecting block, slide vertically with the connecting block, and slide horizontally with the slider. This allows the position of the laser sensor to be adjusted arbitrarily. The laser sensor can be directly facing the actuator of the angle valve under test, and the actuator of the angle valve under test can be within the range of the laser sensor.

[0026] 11. By setting a first temperature sensor to monitor the temperature of the power supply module and a second temperature sensor to monitor the temperature of the negative pressure generating module, overheating of the power supply module and the negative pressure generating module can be avoided as much as possible, thereby improving the safety of the multi-functional test system for vacuum angle valves. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a block diagram of a multifunctional testing system for a vacuum angle valve according to one embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the gas path of a multifunctional test system for a vacuum angle valve according to another embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the structure of a multifunctional testing system for a vacuum angle valve in another embodiment of this application.

[0031] Explanation of reference numerals in the attached drawings: 100, Multifunctional testing system for vacuum angle valves; 110, Pressure regulation module; 120, Test passage; 121, First electrically controlled valve; 122, Second electrically controlled valve; 123, Pressure sensing module; 124, Position sensing module; 1241, Laser sensor; 1242, Hall sensor; 125, Third electrically controlled valve; 126, Fourth electrically controlled valve; 127, Negative pressure sensing module; 130, Negative pressure generating module; 140, Control module; 142, Touch screen; 151, Pressure gauge; 152, Shut-off valve; 153, Vent valve; 161, Operation button; 162, Emergency stop button; 171, Outer cover; 172, Machine base; 173, Sliding module; 1731, Vertical rod; 1732, Connecting block; 1733, Horizontal rod; 1734, Slider; 200, Angle valve under test; 300, Pressurized air supply module. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0033] like Figure 1-2 As shown, the first aspect of this application provides a multifunctional testing system 100 for a vacuum angle valve. The multifunctional testing system 100 is used to test the performance of an angle valve 200 under test, which can be a pneumatic angle valve.

[0034] The multi-functional testing system 100 for vacuum angle valves includes a pressure regulating module 110, a testing passage 120, a negative pressure generating module 130, and a control module 140. It should be noted that... Figure 3 It includes multiple valves and pressure gauges 151 and other electronic control components. Arrows pointing towards the electronic control components represent signal inputs, and arrows moving away from the electronic control components represent signal outputs.

[0035] The pressure regulating module 110 is used to regulate the gas pressure at its outlet. The pressure regulating module 110 can be, exemplarily, an electro-proportional valve. The control module 140 sends a target pressure to the pressure regulating module 110, which then performs a regulating action to adjust its outlet gas pressure to the target pressure. Therefore, the control module 140 can determine the outlet gas pressure of the pressure regulating module 110 based on its own target pressure. The inlet of the pressure regulating module 110 is connected to a pressurized gas supply module 300, which can be an air compressor, air tank, etc. The connection between the inlet of the pressure regulating module 110 and the pressurized gas supply module 300 introduces compressed gas into the multi-functional testing system 100 of the vacuum angle valve.

[0036] The test path 120 includes a first solenoid valve 121, a second solenoid valve 122, a pressure sensing module 123, and a position sensing module 124.

[0037] The inlet of the first solenoid valve 121 is connected to the outlet of the pressure regulating module 110. The first solenoid valve 121 is used to control the opening and closing of the air control passage of the angle valve 200 under test. The first solenoid valve 121 is a normally open valve. Since the first solenoid valve does not need to be connected to multiple output interfaces, the first solenoid valve 121 can be a two-position two-way solenoid valve, thereby saving costs.

[0038] The inlet of the second solenoid valve 122 is connected to the outlet of the first solenoid valve 121. The outlet of the second solenoid valve 122 is used to connect to the air control end of the angle valve 200 under test. The second solenoid valve 122 is used to supply air to the air control end of the angle valve 200 under test. When the second solenoid valve 122 supplies air to the air control end of the angle valve 200 under test, the angle valve 200 under test opens. When the second solenoid valve 122 releases air from the air control end of the angle valve 200 under test, the angle valve 200 under test closes. It should be noted that, depending on the type of pneumatic angle valve, the pneumatic angle valve may have one or two air control ends. For example, the pneumatic angle valve may only have a main valve, or it may have a main valve and an initial exhaust valve. Correspondingly, the second solenoid valve is a three-position five-way solenoid valve, that is, the second solenoid valve has multiple air outlets, which can adapt to pneumatic angle valves with one or two air control ends, thus having a wider range of applications. The following examples illustrate a pneumatic angle valve having a main valve and an initial exhaust valve.

[0039] A pressure sensing module 123 is connected between the first solenoid valve 121 and the second solenoid valve 122. The pressure sensing module 123 measures the air pressure between the two valves. The control module 140 can acquire the pressure value measured by the pressure sensing module 123. The pressure sensing module 123 can detect whether the angle valve 200 under test is leaking. For example, by closing the first solenoid valve 121 and opening the second solenoid valve 122, the air pressure of the pressure sensing module 123 is monitored. If the air pressure of the pressure sensing module 123 decreases, it indicates that the angle valve 200 under test is leaking; if the air pressure of the pressure sensing module 123 remains unchanged, it indicates that the angle valve 200 under test is not leaking. The pressure sensing module 123 can, for example, be an electrically controlled pressure gauge 151. The electrically controlled pressure gauge 151 can set upper and lower limits for its range air pressure. If the current air pressure exceeds the set upper or lower limits, it will output a corresponding electrical signal to provide a prompt or alarm.

[0040] The position sensing module 124 is configured to correspond to the angle valve 200 under test. The position detection module is used to detect the position information of the actuator of the angle valve 200 under test and send the detected position information of the actuator to the control module 140. Specifically, the angle valve 200 under test has a valve open state and a valve closed state. The position detection module is used to detect the position information of the actuator of the angle valve 200 under test when the valve is open, and the position information of the actuator of the angle valve 200 under test when the valve is closed. The angle valve 200 under test also has a half-open and half-closed state between the valve open state and the valve closed state. The position detection module can also detect the position of the actuator of the angle valve 200 under test when the angle valve 200 is in the half-open and half-closed state.

[0041] The negative pressure generating module 130 is used to connect to the pipeline outlet of the angle valve 200 under test in order to evacuate the pipeline of the angle valve 200 under test. The negative pressure generating module 130 can be a vacuum pump, for example.

[0042] The control module 140 is electrically connected to the pressure regulating module 110, the first solenoid valve 121, the second solenoid valve 122, the pressure sensing module 123, the negative pressure generating module 130, and the position sensing module 124. The control module 140 can control the operation of the pressure regulating module 110, the first solenoid valve 121, the second solenoid valve 122, and the negative pressure generating module 130. For example, the control module 140 can have switch input / output capabilities to control the switching of multiple solenoid valves. The control module 140 can receive information from the pressure sensing module 123 and the position sensing module 124, and can also integrate timing and counting functions.

[0043] Understandably, when the negative pressure generating module 130 stops operating, the pipeline of the angle valve under test 200 is under normal pressure. In this state, the angle valve under test 200 experiences relatively low resistance when opening or closing. However, in actual use, the pipeline of the angle valve under test 200 is often under negative pressure, resulting in relatively high resistance when opening or closing. Therefore, the performance of the angle valve under test 200 under pressure will differ from that under no-pressure conditions.

[0044] The multifunctional testing system 100 for vacuum angle valves in this embodiment can use the negative pressure generating module 130 to evacuate the pipeline of the angle valve 200 under test, thereby creating a negative pressure in the pipeline and simulating the vacuum operating environment of the angle valve 200. This makes the test data from the multifunctional testing system 100 for vacuum angle valves more accurate. Alternatively, the negative pressure generating module 130 can be turned off without evacuating the pipeline of the angle valve 200 under test, thus simulating the normal pressure operating environment of the angle valve 200.

[0045] Furthermore, most common performance testing equipment is single-function, capable of testing only one specific performance specification. Testing multiple performance parameters requires purchasing multiple devices for each test item, necessitating a dedicated laboratory, resulting in high costs and large space requirements. In contrast, the multi-functional testing system 100 for vacuum angle valves in this embodiment can perform stroke testing, response testing, control pressure testing, and fatigue testing on the angle valve 200 under test. In other words, the multi-functional testing system 100 integrates multiple performance testing functions, and the overall platform occupies a small space. During different performance testing processes, some pipelines and valves of the multi-functional testing system 100 can be reused, thus saving pipelines and valves and reducing costs. The specific testing method for the angle valve 200 under test will be described in detail later and will not be discussed here.

[0046] like Figure 2 As shown, in some exemplary embodiments, the test path 120 further includes a third solenoid valve 125, a fourth solenoid valve 126, and a negative pressure sensing module 127. The third solenoid valve 125, the fourth solenoid valve 126, and the negative pressure sensing module 127 are all electrically connected to the control module 140. The control module 140 can control the operation of the third solenoid valve 125 and the fourth solenoid valve 126, and can receive information from the negative pressure sensing module 127.

[0047] The inlet of the third solenoid valve 125 is connected to the outlet of the pressure regulating module 110, and the outlet of the third solenoid valve 125 is used to connect to the pipeline inlet of the angle valve 200 under test. The third solenoid valve 125 is used to control the opening and closing of the pipeline passage of the angle valve 200 under test, and the third solenoid valve 125 is a normally closed valve. Since the third solenoid valve does not need to be connected to multiple output ports, the third solenoid valve 125 can be a two-position two-way solenoid valve, thereby saving costs.

[0048] The inlet of the fourth solenoid valve 126 is used to connect with the pipeline outlet of the angle valve 200 under test, and the outlet of the fourth solenoid valve 126 is connected with the negative pressure generating module 130. The fourth solenoid valve 126 is used to control whether the negative pressure generating module 130 is connected with the pipeline outlet of the angle valve 200 under test. The fourth solenoid valve 126 can be an electromagnetic angle valve. Electromagnetic angle valves can maintain stable operation even in extreme environments and are relatively reliable.

[0049] The negative pressure sensing module 127 is located at the inlet of the fourth solenoid valve 126 and is used to measure the negative pressure value at the outlet of the pipe of the angle valve 200 under test, and can send the negative pressure data at the outlet of the pipe of the angle valve 200 under test to the control module 140.

[0050] The multi-functional testing system 100 for vacuum angle valves in this embodiment can pressurize the inlet of the pipe of the angle valve 200 under test by opening the third solenoid valve 125, and can evacuate the outlet of the pipe of the angle valve 200 under test by opening the fourth solenoid valve 126, thereby enabling pressure resistance testing of the angle valve 200 under test.

[0051] like Figure 2 As shown, in some exemplary embodiments, there are multiple test paths 120, which are connected in parallel. Each test path 120 can test one angle valve 200 under test, and multiple test paths can test multiple angle valves 200 under test simultaneously, thereby improving testing efficiency and saving testing time. Optionally, there are two test paths 120, which can improve efficiency without making the multifunctional testing system 100 for vacuum angle valves too large.

[0052] It should be noted that multiple test paths 120 can be tested simultaneously, or only some test paths 120 can be tested while others are not. Understandably, closing the first solenoid valve 121 prevents air from entering the control end of the test valve; closing the third solenoid valve prevents air from entering the inlet of the angle valve 200 under test; and closing the fourth solenoid valve prevents vacuuming at the outlet of the test valve. When a particular test path 120 is not being tested, it can be isolated by closing the first solenoid valve 121, the third solenoid valve, and the fourth solenoid valve.

[0053] like Figure 3 As shown, in some exemplary embodiments, the multifunctional testing system 100 for vacuum angle valves also includes a pressure gauge 151, a shut-off valve 152, and a vent valve 153.

[0054] Pressure gauge 151 is connected between pressurized air supply module 300 and pressure regulating module 110, allowing for real-time monitoring of the air supply pressure of the multi-functional testing system 100 for vacuum angle valves to determine if the air supply pressure is within acceptable limits. Pressure gauge 151 can be a mechanical pressure gauge for convenient direct pressure reading by the user and is relatively reliable and durable.

[0055] The shut-off valve 152 is connected between the pressure gauge 151 and the pressure regulating module 110. The shut-off valve 152 is used to shut off the air supply to the multi-functional testing system 100 of the vacuum angle valve. When the multi-functional testing system 100 of the vacuum angle valve needs to operate, the shut-off valve 152 is open; when the multi-functional testing system 100 of the vacuum angle valve needs to be closed, the shut-off valve 152 can be closed, thereby isolating the multi-functional testing system 100 of the vacuum angle valve from the pressurized air supply module 300, facilitating maintenance and other operations. The shut-off valve 152 can control the air intake of the entire multi-functional testing system 100 of the vacuum angle valve. Normally, the shut-off valve 152 is open. Because the number of times the shut-off valve 152 is opened and closed is relatively small, it can be a manual valve to save costs.

[0056] The vent valve 153 is connected to the outlet of the pressure regulating module 110. The vent valve 153 is used to depressurize the pipeline of the multi-functional testing system 100 for vacuum angle valves. When the multi-functional testing system 100 stops operating, the vent valve 153 can be opened to release pressure, thereby preventing the pipeline and valves of the multi-functional testing system 100 from being under pressure for extended periods and extending the service life of the multi-functional testing system 100. Normally, the vent valve 153 is closed. Since the number of times the vent valve 153 is opened and closed is relatively small, it can be a manual valve to save costs.

[0057] like Figure 3 As shown, in some exemplary embodiments, the control module 140 includes a control unit and a touch screen 142. The touch screen 142 is electrically connected to the control unit, and sends touch commands to the control unit, which then performs corresponding calculations. Direct operation on the touch screen 142 facilitates human-machine interaction and reduces the need for physical buttons. The multi-functional testing system 100 for vacuum angle valves also includes an operation button 161 and an emergency stop button 162, both electrically connected to the control unit. The operation button 161 controls the multi-functional testing system 100 for vacuum angle valves. For frequent operations, such as switching the angle valve 200 under test or switching the main test valve or the initial test valve using the operation button 161, the operation efficiency of the operation button 161 is higher. The emergency stop button 162 is used to stop the test in an emergency. In critical moments, striking the emergency stop button 162 is obviously faster than operating on the touch screen 142, thus reducing risk and minimizing losses.

[0058] like Figure 3As shown, in some exemplary embodiments, the multifunctional testing system 100 for vacuum angle valves includes an outer cover 171. A touch screen 142, operation buttons 161, an emergency stop button 162, a pressure gauge 151, a shut-off valve 152, and a vent valve 153 are all disposed on the outer surface of the outer cover 171. The touch screen 142, operation buttons 161, and emergency stop button 162 are disposed on the outer surface of the outer cover 171 for convenient user touch or operation. The pressure gauge 151 is disposed on the outer surface of the outer cover 171 for convenient user observation of pressure. The shut-off valve 152 and vent valve 153 are disposed on the outer surface of the outer cover 171 for convenient user rotation to close or open the valves.

[0059] The pressure regulating module 110, the first solenoid valve 121, the second solenoid valve 122, the pressure sensing module 123, the third solenoid valve 125, the fourth solenoid valve 126, the negative pressure sensing module 127, and the negative pressure generating module 130 are all located inside the outer cover 171. Since these components do not require manual operation, they are located inside the outer cover 171. The outer cover 171 can protect the above components and can also isolate noise, thereby reducing the noise of the above components when they are working.

[0060] like Figure 1-2 As shown, in some exemplary embodiments, the position sensing module 124 includes a laser sensor 1241 and a Hall sensor 1242. The laser sensor 1241 is positioned opposite the actuation component of the angle valve 200 under test, and the Hall sensor 1242 is positioned on the angle valve 200 under test.

[0061] The laser sensor 1241 measures the straight-line distance between the target object and the laser sensor 1241 based on the principle of laser reflection. The laser sensor 1241 can be installed directly above the angle valve 200 under test, with the laser beam aligned with the actuating component of the angle valve 200. The laser sensor 1241 can measure both the main valve's travel and the initial valve travel. The laser sensor 1241 offers advantages such as non-contact, long-distance measurement, high speed, high accuracy, large measuring range, and strong resistance to photoelectric interference.

[0062] The Hall sensor 1242 can be understood as a magnetic switch. It monitors the position of the main valve 200 by sensing the position of the magnetic ring of the main valve. The Hall sensor 1242 can be installed in the guide groove of the main valve 200. Each position sensing module 124 includes two Hall sensors 1242, which correspond to the open and closed positions of the main valve, respectively. When the main valve of the main valve 200 is open, the Hall sensor 1242 in the open position emits a signal; when the main valve of the main valve 200 is closed, the Hall sensor 1242 in the closed position emits a signal. The Hall sensor 1242 enables non-contact measurement, reducing mechanical wear and avoiding errors introduced by contact. The Hall sensor 1242 exhibits good adaptability and stability to environmental changes, such as temperature fluctuations and humidity changes, and can maintain reliable working performance for a long time.

[0063] like Figure 3 As shown, in some exemplary embodiments, the multifunctional testing system 100 for vacuum angle valves includes a machine base 172 and a sliding module 173 disposed on the machine base 172. A laser sensor 1241 is disposed on the sliding module 173 and is disposed above the angle valve 200 to be tested. The sliding module 173 is used to adjust the position of the laser sensor 1241 relative to the angle valve 200 to be tested.

[0064] The sliding module 173 includes a vertical rod 1731, a connecting block 1732, a horizontal rod 1733, and a slider 1734. The vertical rod 1731 is fixedly mounted on the machine base 172. The connecting block 1732 is rotatably mounted on the vertical rod 1731 and slidably mounted on the vertical rod 1731. The horizontal rod 1733 is connected to the connecting block 1732. The slider 1734 is slidably mounted on the horizontal rod 1733. The laser sensor 1241 is mounted on the slider 1734. The laser sensor 1241 can rotate around the vertical rod 1731 with the connecting block 1732, slide vertically with the connecting block 1732, and slide horizontally with the slider 1734. This allows the position of the laser sensor 1241 to be arbitrarily adjusted. The laser sensor 1241 can be directly facing the actuator of the angle valve 200 under test, and the actuator of the angle valve 200 under test can be within the range of the laser sensor 1241.

[0065] In some exemplary embodiments, the multifunctional testing system 100 for vacuum angle valves further includes a power module, a first temperature sensor, a second temperature sensor, a first fan, and a second fan.

[0066] The power supply module is used to power the multifunctional testing system 100 for vacuum angle valves. Specifically, the power supply can power the control module 140, pressure regulation module 110, first solenoid valve 121, second solenoid valve 122, pressure sensing module 123, negative pressure generating module 130, position sensing module 124, third solenoid valve 125, fourth solenoid valve 126, negative pressure sensing module 127, first temperature sensor, second temperature sensor, first fan and second fan.

[0067] The first temperature sensor corresponds to the power supply module and is used to measure the temperature of the power supply module. The second temperature sensor corresponds to the negative pressure generating module 130 and is used to measure the temperature of the negative pressure generating module 130. The power supply module and the negative pressure generating module 130 are components that are prone to heat generation, and therefore require close monitoring.

[0068] The first fan is used for suction, and the second fan is used for blowing. The first and second fans work together to accelerate the airflow, thereby removing the heat from the multi-functional test system 100 of the vacuum angle valve.

[0069] When the temperature value of either the first or second temperature sensor exceeds a first threshold, both the first and second fans start to cool the multi-functional testing system 100 of the vacuum angle valve. When the temperature values ​​of either the first or second temperature sensor are below a second threshold, both the first and second fans stop to save power. The first and second thresholds can be set according to actual conditions and are not limited here. For example, the difference between the first and second thresholds is five, thereby avoiding frequent start-stop of the first and second fans.

[0070] By setting a first temperature sensor to monitor the temperature of the power supply module and a second temperature sensor to monitor the temperature of the negative pressure generating module 130, the overheating of the power supply module and the negative pressure generating module 130 can be avoided as much as possible, thereby improving the safety of the multi-functional testing system 100 for vacuum angle valves.

[0071] The second aspect of this application provides an operation method for a multifunctional testing system 100 for vacuum angle valves. The multifunctional testing system 100 for vacuum angle valves includes a control module 140, a position sensing module 124, a pressure regulating module 110, and a negative pressure generating module 130.

[0072] The position sensing module 124 is set to the angle valve under test 200 and is used to sense the position of the actuator of the angle valve under test 200; the pressure regulating module 110 is connected to the air control end and the pipeline inlet of the angle valve under test 200 and is used to regulate the pressure of the air control end or the pipeline inlet of the angle valve under test 200; the negative pressure generating module 130 is connected to the pipeline outlet of the angle valve under test 200 and is used to regulate the negative pressure at the pipeline outlet of the angle valve under test 200.

[0073] The control module 140 integrates timing and counting functions. The control module 140 is electrically connected to the position sensing module 124, the pressure regulating module 110 and the negative pressure generating module 130. The control module 140 can obtain the pressure value fed back by the pressure regulating module 110.

[0074] The operating methods include:

[0075] In step S100, the position information of the position sensing module 124 is obtained through the control module 140, the pressure of the control end or pipeline inlet of the angle valve 200 under test is adjusted by the pressure adjustment module 110, and the negative pressure of the pipeline outlet of the angle valve 200 under test is adjusted by the negative pressure generating module 130, so as to perform tests on at least two of the stroke, response time, control pressure, fatigue test and pressure resistance of the angle valve 200 under test.

[0076] The operating method described in this embodiment allows for the performance of multiple tests on the angle valve 200 under test, meeting the needs of frequent testing and debugging during the development of pneumatic angle valves. Furthermore, performing multiple tests on the angle valve 200 not only ensures its safety and reliability but also improves its overall performance and applicability, reduces maintenance costs, and extends its service life.

[0077] In some exemplary embodiments, when detecting the stroke of the angle valve 200 under test, the specific operating steps include:

[0078] In step S101, the air control end of the angle valve 200 under test is vented to close the angle valve 200 under test, and the closing position of the actuator of the angle valve 200 under test is recorded by the position sensing module 124.

[0079] Taking the above test system as an example, the angle valve 200 under test is in a closed state when there is no pressure. The control module 140 can issue a command to control the second solenoid valve 122 to release air, thereby causing the angle valve 200 under test to close. The laser sensor 1241 measures the position of the actuator of the angle valve 200 under test when it is closed.

[0080] In step S102, air is supplied to the control end of the angle valve 200 under test to open the angle valve 200 under test, and the opening position of the actuator of the angle valve 200 under test is recorded by the position sensing module 124.

[0081] The control module 140 can issue a command to control the second electronically controlled valve 122 to inflate the angle valve 200 under test, thereby opening the angle valve 200 under test, and the laser sensor 1241 measures the position of the actuator when the angle valve 200 under test is opened.

[0082] In step S103, the control module 140 calculates the stroke of the angle valve 200 under test based on the closed and open positions.

[0083] The stroke of the angle valve 200 under test can be determined based on the distance between the closed and open positions.

[0084] Stroke testing is an important means of ensuring that the angle valve 200 under test meets relevant standards and specifications. Through testing, it can be verified whether the angle valve 200 meets design requirements and safety standards. Stroke testing can also optimize the operating parameters of the pneumatic angle valve, reducing unnecessary energy consumption and media waste, thereby improving production efficiency.

[0085] In some exemplary embodiments, if the stroke of the angle valve 200 to be tested is detected, the specific operating steps further include:

[0086] Step S201: After the angle valve under test 200 is closed for a first preset time, the closing position of the actuator of the angle valve under test 200 is recorded by the position sensing module 124.

[0087] By setting the position measurement to occur after a first preset time, the angle valve 200 under test can be ensured to close completely and remain stable, thereby improving the accuracy of the stroke test. The first preset time depends on the response time of the angle valve 200 under test and is not limited here. For example, the first preset time can be 3 seconds, which ensures complete closure without consuming excessive time.

[0088] Step S202: After the angle valve under test 200 is opened for a second preset time, the opening position of the actuator of the angle valve under test 200 is recorded by the position sensing module 124.

[0089] By setting a second preset time before performing position measurement, it is possible to ensure that the angle valve 200 under test is fully opened and remains stable, thereby improving the accuracy of the stroke test. The second preset time is determined based on the response time of the angle valve 200 under test and is not limited here. For example, the second preset time can be 3 seconds, which ensures that it is fully closed without taking up too much time.

[0090] In some exemplary embodiments, if the response time of the angle valve 200 under test is detected, the specific operation steps include:

[0091] In step S301, the control module 140 sends an opening signal to open the angle valve 200 under test and starts timing.

[0092] For example, the control module 140 controls the second solenoid valve 122 to inflate the angle valve 200 under test, thereby controlling the opening of the angle valve 200. Therefore, the control module 140 can use the signal to open the second solenoid valve 122 as an opening signal; after issuing the opening signal, the angle valve 200 under test begins to open. It should be noted that the opening time of the second solenoid valve 122 is very short compared to the opening time of the angle valve 200 under test; therefore, the delay caused by the opening of the second solenoid valve 122 is negligible.

[0093] In step S302, after the angle valve 200 under test is opened to the position, the position sensing module 124 sends an open position signal, and the control module 140 stops timing.

[0094] After detecting that the angle valve 200 under test is fully opened, the position sensing module 124 sends an opening signal. The opening signal can be sent by the laser sensor 1241 or the Hall sensor 1242.

[0095] In step S303, the control module 140 calculates the opening response time of the angle valve 200 under test based on the time difference between the opening signal and the opening position signal.

[0096] The time difference between the opening signal and the opening position signal is the time required for the angle valve 200 under test to open, and the time required for the angle valve 200 under test to open is the opening response time of the angle valve 200 under test.

[0097] In step S304, the control module 140 sends a closing signal to close the angle valve 200 under test and starts timing.

[0098] For example, the control module 140 controls the venting of the angle valve 200 under test by controlling the second solenoid valve 122, thereby controlling the closure of the angle valve 200 under test. Therefore, the control module 140 can use the depressurization signal of the second solenoid valve 122 as a closing signal. After issuing the closing signal, the angle valve 200 under test begins to close. It should be noted that the venting time of the second solenoid valve 122 is very short compared to the closing time of the angle valve 200 under test, so the delay caused by the venting of the second solenoid valve 122 can be ignored.

[0099] In step S305, after the angle valve 200 under test is closed to the position, the position sensing module 124 sends a closed signal, and the control module 140 stops timing.

[0100] After detecting that the angle valve 200 under test is closed, the position sensing module 124 sends a closed signal. The closed signal can be sent by the laser sensor 1241 or the Hall sensor 1242.

[0101] In step S306, the control module 140 calculates the closing response time of the angle valve 200 under test based on the time difference between the closing signal and the closing position signal.

[0102] The time difference between the closing signal and the closing position signal is the time required for the angle valve 200 under test to close, and the time required for the angle valve 200 under test to close is the closing response time of the angle valve 200 under test.

[0103] The resistance experienced by the angle valve 200 under test may be different when it is opened or closed. Therefore, the opening response time and closing response time of the angle valve 200 under test may be different. The opening response time and closing response time of the angle valve 200 under test need to be measured separately.

[0104] By testing, the response speed of the angle valve 200 under test can be verified, ensuring its rapid response and preventing safety accidents caused by slow response. Response time testing helps identify problems in the design and manufacturing process, allowing for optimization of design and improvement of manufacturing processes, reducing frequent maintenance due to design flaws, and thus extending the service life of the angle valve 200. Response time testing also verifies whether the angle valve 200 meets relevant standards and regulatory requirements, ensuring product compliance.

[0105] In some exemplary embodiments, if the response time of the angle valve 200 under test is detected, the method further includes the following steps:

[0106] Step S401: Before the control module 140 sends an opening signal to open the angle valve 200 under test, the opening position and closing position of the angle valve 200 under test are set.

[0107] By setting the open position, the time required for the angle valve 200 to open to different degrees can be measured. By setting the closed position, the time required for the angle valve 200 to close to different degrees can be measured.

[0108] In some exemplary embodiments, if a control pressure test is performed on the angle valve 200 to be tested, the specific operating steps include:

[0109] In step S501, the pressure regulating module 110 is controlled by the control module 140 to gradually increase the air pressure value at the control end of the angle valve 200 under test.

[0110] By increasing the opening of the pressure regulating module 110, the air pressure at the control end of the angle valve 200 under test can be increased.

[0111] In step S502, when the position sensing module 124 detects that the actuator of the angle valve 200 under test is in the start position, the control module 140 records the air pressure value at the control end of the angle valve 200 under test at this time as the start control pressure value.

[0112] The starting position of the angle valve 200 under test can be related to the closed position; for example, the starting position is the position of the actuator after moving 1mm from the closed position. Alternatively, the starting position of the angle valve 200 under test can be independent of the closed position and can be set by the user.

[0113] In step S503, the control module 140 compares the start control pressure value with the preset first pressure value to determine whether the start control pressure value is normal.

[0114] The first pressure value is the designed starting pressure value of the angle valve 200 under test, and the starting control pressure value is the actual measured starting pressure value. When the difference between the first pressure value and the starting control pressure value is within the tolerance range, the starting pressure value of the angle valve 200 under test is qualified. When the difference between the first pressure value and the starting control pressure value is outside the tolerance range, the starting pressure value of the angle valve 200 under test is unqualified.

[0115] In step S504, when the position sensing module 124 detects that the actuator of the angle valve 200 under test is in the open position, the control module 140 records the air pressure value at the control end of the angle valve 200 under test at this time as the open position control pressure value.

[0116] By continuing to increase the opening of the pressure regulating module 110, the air pressure value at the control end of the angle valve 200 under test can continue to increase, thereby continuously increasing the opening of the angle valve 200 under test until the actuator of the angle valve 200 under test is in the fully open position.

[0117] In step S505, the control module 140 compares the opening position control pressure value with the preset second pressure value to determine whether the opening position control pressure value is normal.

[0118] The second pressure value is the designed opening pressure value of the angle valve 200 under test, and the opening control pressure value is the actual measured opening pressure value. When the difference between the second pressure value and the opening control pressure value is within the tolerance range, the opening pressure value of the angle valve 200 under test is qualified. When the difference between the second pressure value and the opening control pressure value is outside the tolerance range, the opening pressure value of the angle valve 200 under test is unqualified.

[0119] By conducting a control pressure test on the angle valve 200 under test, that is, by adjusting the air pressure, the valve opening can be precisely controlled to achieve higher precision and accuracy, and problems in the design and manufacturing process can be discovered to optimize product performance.

[0120] In some exemplary embodiments, if fatigue testing is to be performed on the angle valve 200 under test, the specific operating steps include:

[0121] In step S601, the angle valve 200 under test is repeatedly opened and closed, and the number of times the angle valve 200 under test is opened and closed is recorded by the control module 140.

[0122] In step S602, if the number of times the angle valve 200 under test is opened or closed does not reach the first preset number, and the angle valve 200 under test is damaged, the test is stopped, and it is determined that the angle valve 200 under test has failed the fatigue test.

[0123] The first preset number of times is the number of times the angle valve 200 under test needs to be opened and closed to meet the qualification requirements. If the number of times the angle valve 200 under test is opened or closed does not reach the first preset number of times, it means that the performance of the angle valve 200 under test does not meet the requirements.

[0124] Step S603: If the number of times the angle valve 200 under test is opened and closed reaches the first preset number, the test is stopped, and the performance of the angle valve 200 under test is tested. If the test is qualified, the angle valve 200 under test is determined to have passed the fatigue test. If the test is unqualified, the angle valve 200 under test is determined to have failed the fatigue test.

[0125] Even if the angle valve 200 under test can be opened and closed a first preset number of times, if its performance significantly decreases after the first preset number of opening and closing cycles, it is considered unqualified. Only if the angle valve 200 under test can be opened and closed a first preset number of times, and its performance still meets the requirements after the first preset number of opening and closing cycles, is it considered qualified.

[0126] Fatigue testing can simulate the long-term operation of the angle valve 200 under actual working conditions, evaluate its consistency and reliability after multiple operations, and verify the valve's durability and stability. Through fatigue testing, the performance stability of the angle valve 200 under test can be assessed during long-term use, potential failure risks can be identified in advance, and the valve 200 under test can be ensured not to leak or malfunction under extreme conditions, thus protecting the safety of personnel and equipment.

[0127] In some exemplary embodiments, when the number of times the angle valve 200 under test is opened and closed reaches a second preset number, the test is paused, and the performance of the angle valve 200 under test is tested. If the test is qualified, the test continues; if the test is unqualified, the test is stopped, and it is determined that the angle valve 200 under test has failed the fatigue test. The second preset number is less than the first preset number.

[0128] The performance of the angle valve 200 under test is tested, including its airtightness and response time. The response time of the angle valve opening and closing is compared with the preset value to determine whether it is normal. The response time can be tested according to the response time test method described above, and the response time can be tested every time the angle valve 200 under test is opened and closed, which will not be elaborated here.

[0129] Air tightness testing includes vacuum monitoring and pressure holding tests. For example, the vacuum level at the outlet of the valve under test (AUT) 200 can be monitored during each opening / closing operation. The vacuum level of AUT 200 can be determined by the parameters of the negative pressure sensing module 127. If the vacuum level of AUT 200 is unqualified, it indicates that AUT 200 is leaking air, and the negative pressure of the negative pressure sensing module 127 will decrease in this case.

[0130] During fatigue testing of the angle valve, the sealing components of its internal air control channel will continuously undergo displacement and wear, necessitating airtightness monitoring of the air control channel. The controller channel is filled with a preset positive air pressure (e.g., 0.7 MPa), the first solenoid valve 121 is closed, and the pressure is maintained for a preset time (e.g., 10 minutes). Simultaneously, the air pressure value of the pressure sensing module 123 is monitored. If the air pressure value of the pressure sensing module 123 changes to below the preset pressure value, an airtightness anomaly is determined, indicating that wear of the sealing components in the angle valve's internal air control channel has affected the system's tightness. Furthermore, because the pressure holding time is relatively long, it is impractical to perform airtightness monitoring for every opening / closing of the angle valve during fatigue testing. Therefore, the experimental system can preset the number of airtightness detection actions X (e.g., one airtightness monitoring every 1000 opening / closing cycles).

[0131] During fatigue testing of an angle valve, the sealing components in its internal piping channels undergo continuous displacement or compression, resulting in wear. Therefore, it is necessary to monitor the airtightness of the piping channels. Specifically, during the experiment, a negative pressure generating module 130 extracts air from the outlet of the angle valve 200 under test, and a negative pressure sensing module 127 monitors the vacuum level within the piping channels in real time. When the detected vacuum level exceeds a preset level, an abnormal vacuum is identified, indicating that wear on the sealing components in the internal piping channels of the angle valve is affecting the system's vacuum level. The platform then stops the fatigue test, and the currently recorded number of fatigue cycles represents the fatigue life of the angle valve under test.

[0132] In summary, although the angle valve 200 under test can still be opened and closed during testing, it may already be damaged. Waiting until the valve 200 has completed the first preset number of opening and closing cycles before performance testing would waste testing resources. Therefore, performance testing can be performed on the angle valve 200 after the second preset number of cycles, thereby identifying problems early and improving testing efficiency.

[0133] In some exemplary embodiments, the specific operating steps for performing a pressure resistance test on the angle valve 200 to be tested include:

[0134] Step S701: The gas supply is switched from the control end of the angle valve 200 under test to the pipeline inlet of the angle valve 200 under test.

[0135] For example, the first solenoid valve 121 can be closed and the third solenoid valve 125 can be opened, so that there is no air pressure at the control end of the angle valve 200 under test, and there is air pressure at the pipeline inlet of the angle valve 200 under test.

[0136] In step S702, the negative pressure generating module 130 evacuates the pipe outlet of the angle valve 200 under test.

[0137] For example, the fourth electrically controlled valve 126 and the negative pressure generating module 130 can be opened.

[0138] In step S703, the pressure regulating module 110 is controlled by the control module 140 to gradually increase the air pressure value at the pipeline inlet of the angle valve 200 under test.

[0139] For example, by increasing the opening of the pressure regulating module 110, the inlet air pressure of the pipe of the angle valve 200 under test can be increased.

[0140] In step S704, when the position sensing module 124 detects that the actuator of the angle valve 200 under test is in the start position, the control module 140 records the air pressure value at the inlet of the pipe of the angle valve 200 under test at this time as the pressure resistance value of the angle valve 200 under test.

[0141] When the actuator of the angle valve under test 200 is in the start position, it indicates that the angle valve under test 200 is opened by the gas at the pipeline inlet. At this time, the gas pressure at the pipeline inlet of the angle valve under test 200 is the withstand pressure value of the angle valve under test 200. The withstand pressure value can be obtained through the target pressure signal of the control module 140 or the feedback value of the pressure regulating module 110.

[0142] In step S705, the control module 140 compares the pressure resistance value with the preset third pressure value to determine whether the pressure resistance value is normal.

[0143] The third pressure value is the designed pressure resistance value of the angle valve 200 under test, and the pressure resistance value is the actual measured pressure resistance value. When the difference between the third pressure value and the pressure resistance value is within the tolerance range, the angle valve 200 under test is qualified for pressure resistance. When the difference between the third pressure value and the pressure resistance value is outside the tolerance range, the angle valve 200 under test is unqualified for pressure resistance.

[0144] Pressure testing verifies the structural integrity and sealing performance of the angle valve 200 under high pressure, ensuring that it will not leak or malfunction under extreme conditions, thus protecting personnel and equipment safety. Through pressure testing, the working capacity of the angle valve 200 under specific pressures can be evaluated, predicting its long-term durability and service life, and ensuring the valve remains stable during long-term use.

[0145] In some exemplary embodiments, when testing the angle valve 200 under test, the negative pressure generating module 130 evacuates the pipe outlet of the angle valve 200 under test to make the pipe outlet of the angle valve 200 under test in a negative pressure state, thereby simulating real usage scenarios to measure the performance of the angle valve 200 under test in a vacuum environment.

[0146] In some scenarios, the angle valve under test 200 is in an environment with normal pressure or very low vacuum. In this case, the negative pressure generating module 130 can be turned off to make the outlet of the angle valve under test 200 pipe in a normal pressure state, thereby simulating the normal pressure environment and measuring the performance of the angle valve under test 200 in a normal pressure environment.

[0147] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0148] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A multifunctional testing system for vacuum angle valves, characterized in that, include: A pressure regulating module, wherein the inlet of the pressure regulating module is used to connect to a pressurized gas supply module; The test path includes a first electrically controlled valve, a second electrically controlled valve, a pressure sensing module, and a position sensing module. The inlet of the first electrically controlled valve is connected to the outlet of the pressure regulating module, and the inlet of the second electrically controlled valve is connected to the outlet of the first electrically controlled valve. The outlet of the second electrically controlled valve is used to connect to the air control end of the angle valve under test. The pressure sensing module is connected between the first and second electrically controlled valves, and the position sensing module is positioned corresponding to the angle valve under test. The position sensing module includes a laser sensor and a Hall sensor. The laser sensor is positioned facing the actuator of the angle valve under test, and the Hall sensor is positioned on the angle valve under test. This is a multifunctional test system for the vacuum angle valve. The system also includes a testing platform and a sliding module mounted on the platform. A laser sensor is mounted on the sliding module and positioned above the angle valve under test. The sliding module is used to adjust the position of the laser sensor relative to the angle valve under test. The testing path also includes a third electrically controlled valve, a fourth electrically controlled valve, and a negative pressure sensing module. The inlet of the third electrically controlled valve is connected to the outlet of the pressure regulating module, and the outlet of the third electrically controlled valve is connected to the pipeline inlet of the angle valve under test. The inlet of the fourth electrically controlled valve is connected to the pipeline outlet of the angle valve under test, and the outlet of the fourth electrically controlled valve is connected to the negative pressure generating module. The negative pressure sensing module is located at the inlet of the fourth electrically controlled valve. A negative pressure generating module is used to connect to the pipeline outlet of the angle valve under test in order to evacuate the pipeline of the angle valve under test. The control module is electrically connected to the pressure regulating module, the first solenoid valve, the second solenoid valve, the pressure sensing module, the third solenoid valve, the fourth solenoid valve, the negative pressure sensing module, the negative pressure generating module, and the position sensing module.

2. The multifunctional testing system for vacuum angle valves according to claim 1, characterized in that, The number of test paths is multiple, and the multiple test paths are connected in parallel.

3. The multifunctional testing system for vacuum angle valves according to claim 1, characterized in that, The multi-functional testing system for the vacuum angle valve also includes: A pressure gauge, which is connected between the pressurized gas supply module and the pressure regulating module; A shut-off valve, which connects the pressure gauge and the pressure regulating module; A vent valve is provided, which is connected to the outlet of the pressure regulating module.

4. The multifunctional testing system for vacuum angle valves according to claim 3, characterized in that, The control module includes a control unit and a touch screen. The multi-functional testing system for the vacuum angle valve also includes an operation button and an emergency stop button. The touch screen, the operation button, and the emergency stop button are all electrically connected to the control unit.

5. The multifunctional testing system for vacuum angle valves according to claim 4, characterized in that, The multi-functional testing system for the vacuum angle valve includes an outer cover, on which the touch screen, operation button, emergency stop button, pressure gauge, shut-off valve, and vent valve are all located; the pressure regulating module, the first solenoid valve, the second solenoid valve, the pressure sensing module, and the negative pressure generating module are all located inside the outer cover.

6. The multifunctional testing system for vacuum angle valves according to claim 1, characterized in that, The sliding module includes: A vertical rod, which is fixedly installed on the machine base; A connecting block, wherein the connecting block is rotatably disposed on the vertical rod, and the connecting block is slidably disposed on the vertical rod; A crossbar, which is connected to the connecting block; A slider is slidably mounted on the crossbar, and a laser sensor is mounted on the slider.

7. The multifunctional testing system for vacuum angle valves according to claim 1, characterized in that, The first solenoid valve is a two-position two-way solenoid valve, and the second solenoid valve is a three-position five-way solenoid valve.

8. The multifunctional testing system for vacuum angle valves according to claim 1, characterized in that, The multi-functional testing system for the vacuum angle valve also includes: A power supply module, which supplies power to the multi-functional testing system for the vacuum angle valve; A first temperature sensor is configured corresponding to the power module. A second temperature sensor is configured to correspond to the negative pressure generating module. The first fan is used for air intake; The second fan is used for blowing air; Specifically, when the temperature value of the first temperature sensor or the temperature value of the second temperature sensor exceeds a first threshold, both the first fan and the second fan will start; when the temperature value of the first temperature sensor or the temperature value of the second temperature sensor is lower than a second threshold, both the first fan and the second fan will stop.

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