Solenoid valve testing device

Abstract

The invention relates to an electromagnetic valve testing device, and the device comprises a test bench which is provided with a testing pedestal, and a to-be-tested electromagnetic valve is communicated with the testing pedestal; the high-low temperature box is arranged on the side surface of the test bench, and the high-low temperature box is used for testing the electromagnetic valve to be tested in different temperature environments; the hydraulic oil pump station is far away from the high and low temperature box and is arranged at the test bench, and the electromagnetic valve supplies oil for pressurization test through the hydraulic oil pump station; and the fluid conveying pipeline is arranged on the test bed, the test base is connected in the fluid conveying pipeline, and branch pipelines of the fluid conveying pipeline are respectively connected with the high and low temperature box and the hydraulic oil pump station. The electromagnetic valve to be tested can be arranged in the high-low temperature box and tested in different temperature environments, and the performance of the electromagnetic valve under the extreme temperature condition can be comprehensively evaluated.

Description

Technical Field

[0001] The present application relates to the technical field of solenoid valve production testing, and in particular to a solenoid valve testing device. Background Art

[0002] Solenoid valves play an important role in industrial automatic control systems and are widely used in various mechanical equipment and production processes. Their performance directly affects the stability and reliability of the entire system. In order to ensure the reliability of solenoid valves in practical applications, they need to be rigorously tested for performance. Existing solenoid valve tests mainly focus on static functional verification under normal temperature conditions, but actual application scenarios often involve extreme temperature environments, as well as complex working conditions such as high pressure and vibration, which places higher requirements on the performance of solenoid valves.

[0003] At present, the commonly used solenoid valve testing methods mainly include normal temperature testing method, simple temperature control testing method and static hydraulic pressure boosting testing method. Among them, the normal temperature testing method mainly detects the basic performance indicators of the solenoid valve under room temperature conditions, but it cannot simulate the extreme temperature environment in actual applications; the simple temperature control testing method simply changes the ambient temperature through heating or cooling devices for testing, but it is still difficult to fully simulate complex working conditions; the static hydraulic pressure boosting test is to apply constant pressure to the solenoid valve through an external hydraulic pump to detect its performance changes, but this method also fails to combine different temperatures for comprehensive evaluation.

[0004] The above-mentioned conventional test methods in the prior art are difficult to comprehensively evaluate the performance of the solenoid valve under different temperature environments and its stability under high hydraulic conditions, especially when it is necessary to consider high and low temperature and high pressure factors at the same time, and there is a lack of an effective integrated test system to comprehensively test the reliability and durability of the solenoid valve. In addition, the test bench is equipped with an oil tank and a hydraulic pump to provide a hydraulic environment. During the operation of the hydraulic pump, the cooling fan forms heat dissipation around it, and the hydraulic pump itself generates a large noise, which interferes with the test environment and affects the test staff.

[0005] Therefore, it is necessary to improve a solenoid valve testing device to solve at least one of the above technical problems. Summary of the invention

[0006] In order to improve the performance of solenoid valves in different working environments during testing and to improve the noise problem generated during the testing process, the present application provides a solenoid valve testing device.

[0007] The solenoid valve test device provided in this application adopts the following technical solution: A solenoid valve testing device, comprising: A test bench, wherein a test base is provided on the test bench, and the solenoid valve to be tested is connected to the test base; A high and low temperature box is arranged on the side of the test bench, and the high and low temperature box tests the solenoid valve to be tested under different temperature environments; A hydraulic oil pump station is arranged at the test bench away from the high and low temperature box, and the solenoid valve is supplied with oil through the hydraulic oil pump station for pressurization test; and A fluid delivery pipeline is arranged on the test bench, the test base is connected to the fluid delivery pipeline, and the branch pipelines of the fluid delivery pipeline are respectively connected to the high and low temperature box and the hydraulic oil pump station; the fluid delivery pipeline includes a plurality of first pipelines, second pipelines, a back pressure valve block and a flow meter valve block, the back pressure valve block is connected to the flow meter valve block through the first pipeline by a ball valve, the high and low temperature box is connected to the back pressure valve block through a ball valve in the first pipeline, one of the second pipelines is connected to the test base at the flow meter valve block to form a reflux pipeline, and the other second pipeline is connected to the hydraulic oil pump station at the flow meter valve block, and a branch pipeline is extended to be connected to the test base.

[0008] By adopting the above technical scheme, the solenoid valve test device can realize the boost test of the solenoid valve under different temperature environments, ensuring the diversity of test conditions. The setting of the flow pipeline realizes the connection between the high and low temperature box and the hydraulic oil pump station, forming a return pipeline and a bypass pipeline, ensuring the circulation and supply of oil during the test. The flow pipeline can effectively combine the different temperature environments provided by the high and low temperature box with the oil supplied by the hydraulic oil pump station, realizing accurate boost test of the solenoid valve under different temperature conditions, ensuring the accuracy and reliability of the test results. The flowmeter valve block can accurately measure the liquid flow flowing through the test base to ensure the accuracy of the test data. The back pressure valve block maintains the required back pressure during the test to ensure the reliability of the test process.

[0009] Optionally, a noise reduction cover is provided on the hydraulic oil pump station, and the inner wall of the noise reduction cover is provided with a sound absorbing component, the sound absorbing component includes an installation frame and a high temperature resistant sound absorbing cotton layer, the installation frame is arranged on the inner wall of the noise reduction cover, and the high temperature resistant sound absorbing cotton layer is embedded in the installation frame.

[0010] By adopting the above technical solution, the noise reduction cover can effectively reduce the noise generated by the hydraulic oil pump station during operation. The high-temperature resistant sound-absorbing cotton layer further enhances the noise reduction effect and can maintain good sound absorption performance in a high temperature environment.

[0011] Optionally, a reinforcing plate is fixedly connected to the outer surface of the mounting frame corresponding to the high temperature resistant sound absorbing cotton layer, and a plurality of sound absorbing holes are arranged at equal intervals on the surface of the reinforcing plate.

[0012] By adopting the above technical solution, the addition of a reinforcing plate and the multiple sound-absorbing holes arranged at equal intervals on the surface improve the structural stability and sound-absorbing effect of the sound-absorbing component, thereby further reducing the noise generated by the hydraulic oil pump station during operation.

[0013] Optionally, the inner wall of the noise reduction cover is provided with a disassembly and assembly component, and the installation frame is arranged in the noise reduction cover through the combination of the disassembly and assembly component, the disassembly and assembly component includes a plurality of positioning blocks and electromagnets, the positioning block is arranged on the inner wall of the noise reduction cover, the surface of the positioning block is provided with a disassembly and assembly groove, the electromagnet is arranged in the disassembly and assembly groove, and a magnetic block is arranged at the rear end of the installation frame and in the disassembly and assembly groove, and the electromagnet can be magnetically attracted to the magnetic attraction block.

[0014] By adopting the above technical solution, the disassembly and assembly components inside the noise reduction cover can realize the rapid installation and disassembly of the installation frame, which is convenient for the maintenance and replacement of the sound-absorbing components, thereby improving the noise reduction effect. The coordinated use of the positioning block and the electromagnet makes the positioning and fixation of the installation frame more stable and reliable. The magnetic attraction between the magnetic block and the electromagnet further enhances the stability of the installation frame.

[0015] Optionally, pressure sensors are provided in the fluid delivery pipeline at locations corresponding to the test base, the back pressure valve block and the flow meter valve block, respectively, for monitoring the pressure value of the electromagnetic valve test in the fluid delivery pipeline.

[0016] By adopting the above technical solution, pressure sensors are provided in the fluid delivery pipeline corresponding to the test base, back pressure valve block and flow meter valve block respectively, which can monitor the pressure value of the solenoid valve test in the fluid delivery pipeline in real time, thereby ensuring the accuracy and reliability of the data during the test process.

[0017] Optionally, the hydraulic oil pump station is provided with an oil pipeline, the second pipeline is connected to the oil pipeline, and the second pipeline is provided with a plurality of needle valves which are symmetrically arranged on both sides of the diversion pipeline of the test base.

[0018] By adopting the above technical solution, the oil delivery pipeline set in the hydraulic oil pump station is connected to the second pipeline, and a number of needle valves are set on the second pipeline. These needle valves are symmetrically arranged on both sides of the diversion pipeline of the test base, which can accurately control the flow direction and flow rate of the oil, thereby improving the test accuracy and stability.

[0019] Optionally, the hydraulic oil pump station is provided with an oil pump group, and the oil pump group is connected to the oil pipeline for oil supply and transportation.

[0020] By adopting the above technical solution, the solenoid valve test device realizes stable oil supply to the test base by arranging an oil pump group on the hydraulic oil pump station and connecting it to the oil pipeline, thereby improving the stability of oil supply during the test process and ensuring the accuracy of the test results.

[0021] Optionally, a pressure measuring transfer valve block is provided on the oil pipeline to monitor the pressure in the oil pipeline.

[0022] By adopting the above technical solution, the pressure measuring adapter valve block installed on the oil pipeline can monitor the pressure in the oil pipeline in real time, ensure the pressure stability during the oil supply process, and help improve the accuracy and reliability of the solenoid valve test process.

[0023] Optionally, a cooling fan is provided on the hydraulic oil pump station for dissipating heat and cooling the hydraulic oil pump station. The hydraulic oil pump station is provided with an air outlet duct close to the cooling fan, and an air inlet duct away from the cooling fan.

[0024] By adopting the above technical solution, the setting of the cooling fan can effectively dissipate heat and cool the hydraulic oil pump station, thereby improving the stability and service life of the hydraulic oil pump station under long-term operation. The design of the air outlet duct and the air inlet duct ensures the effective circulation of cooling air, further enhancing the cooling effect.

[0025] Optionally, a plurality of plastic pipe clamps are provided on the test bench, and the plastic pipe clamps are used to support the fluid delivery pipeline.

[0026] By adopting the above technical solution, several plastic pipe clamps arranged on the test bench can effectively support and fix the fluid delivery pipeline, improve the stability of the pipeline layout, avoid displacement or shaking of the pipeline during high and low temperature tests or oil pressure tests, and ensure the safety and accuracy of the test process.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. By placing the solenoid valve to be tested in a high and low temperature box and testing it under different temperature environments, the performance of the solenoid valve under extreme temperature conditions can be fully evaluated, solving the problem that the existing technology cannot simulate complex working conditions in actual applications; 2. The hydraulic oil pump station provides a stable high-pressure oil source for the solenoid valve through the flow pipeline. Combined with the use of high and low temperature boxes, the comprehensive performance evaluation of the solenoid valve under high and low temperature and high pressure conditions is realized; 3. The pressure sensor in the fluid delivery pipeline can monitor the pressure value in real time during the test, improving the accuracy and reliability of the test results; 4. The noise reduction cover and sound absorbing components installed on the hydraulic oil pump station significantly reduce the noise during equipment operation and improve the comfort of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a first-perspective three-dimensional view of a solenoid valve test device in this application.

[0029] Figure 2 This is a second perspective three-dimensional view of a solenoid valve test device (without a noise reduction cover) in this application.

[0030] Figure 3 It is a plan view of a fluid delivery pipeline of a solenoid valve test device in the present application.

[0031] Figure 4 It is a plan view of a hydraulic oil pump station (without a noise reduction cover) of a solenoid valve test device in the present application.

[0032] Figure 5 It is a partially cutaway three-dimensional view of a noise reduction cover of a solenoid valve test device in the present application.

[0033] Figure 6 It is a partially cutaway three-dimensional view of a noise reduction cover (with a sound absorbing component) of a solenoid valve test device in the present application.

[0034] Figure 7 yes Figure 6 The center A is further cut away to show an enlarged schematic diagram.

[0035] In the figure: 1. Test bench; 11. Test base; 12. Plastic pipe clamp; 2. High and low temperature box; 3. Hydraulic oil pump station; 31. Noise reduction cover; 32. Oil pipeline; 33. Oil pump group; 34. Pressure measuring adapter valve block; 35. Cooling fan; 36. Air outlet duct; 37. Air inlet duct; 4. Fluid delivery pipeline; 41. First pipeline; 42. Second pipeline; 43. Back pressure valve block; 44. Flow meter valve block; 45. Pressure sensor; 46. Needle valve; 5. Sound absorbing component; 51. Installation frame; 52. High temperature resistant sound absorbing cotton layer; 53. Reinforcement plate; 54. Sound absorbing hole; 55. Magnetic block; 6. Disassembly and assembly component; 61. Positioning block; 62. Electromagnet; 63. Disassembly and assembly slot. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-7 This application is described in further detail.

[0037] refer to Figure 1-7 The embodiment of the present application discloses a solenoid valve testing device, including: a test bench 1, a high and low temperature box 2, a hydraulic oil pump station 3 and a fluid delivery pipeline 4.

[0038] A test base 11 is provided on the test bench 1, and the solenoid valve to be tested is connected to the test base 11; a high and low temperature box 2 is provided on the side of the test bench 1, and the high and low temperature box 2 tests the solenoid valve to be tested under different temperature environments; a hydraulic oil pump station 3 is provided at the test bench 1 away from the high and low temperature box 2, and the solenoid valve is supplied with oil through the hydraulic oil pump station 3 for pressurization test; and The fluid delivery pipeline 4 is arranged on the test bench 1, the test base 11 is connected to the fluid delivery pipeline 4, and the branch pipelines of the fluid delivery pipeline 4 are respectively connected to the high and low temperature box 2 and the hydraulic oil pump station 3; the fluid delivery pipeline 4 includes a plurality of first pipelines 41, a second pipeline 42, a back pressure valve block 43 and a flow meter valve block 44, the back pressure valve block 43 is connected to the flow meter valve block 44 through the first pipeline 41 by a ball valve, the high and low temperature box 2 is connected to the back pressure valve block 43 through a ball valve in the first pipeline 41, one of the second pipelines 42 is connected to the test base 11 at the flow meter valve block 44, and a reflux pipeline is formed, and the other second pipeline 42 is connected to the hydraulic oil pump station 3 at the flow meter valve block 44, and a branch pipeline is extended to connect to the test base 11.

[0039] The solenoid valve test device can realize the boost test of the solenoid valve under different temperature environments, ensuring the diversity of test conditions. The setting of the flow pipeline 4 realizes the connection between the high and low temperature box 2 and the hydraulic oil pump station 3, forming a return pipeline and a bypass pipeline, ensuring the circulation and supply of oil during the test. The flow pipeline 4 can effectively combine the different temperature environments provided by the high and low temperature box 2 with the oil supplied by the hydraulic oil pump station 3, realizing accurate boost test of the solenoid valve under different temperature conditions, ensuring the accuracy and reliability of the test results. The flowmeter valve block 44 can accurately measure the liquid flow flowing through the test base 11, ensuring the accuracy of the test data. The back pressure valve block 43 maintains the required back pressure during the test to ensure the reliability of the test process.

[0040] In this embodiment, more specifically, the high and low temperature box 2 has a complex structure, including a heating system, a refrigeration system and a control system. The high and low temperature box 2 is usually made of stainless steel, which has corrosion resistance and heat preservation properties. The heating system includes a heating resistor and a thermocouple for adjusting the temperature inside the box. The refrigeration system is usually a combination of a compressor and a cooler, which is responsible for lowering the temperature inside the box. The control system includes a temperature sensor and a control circuit board to monitor and adjust the temperature inside the box in real time.

[0041] In the present embodiment, more specifically, a noise reduction cover 31 is provided on the hydraulic oil pump station 3, and a sound absorbing component 5 is provided on the inner wall of the noise reduction cover 31. The sound absorbing component 5 includes a mounting frame 51 and a high temperature resistant sound absorbing cotton layer 52. The mounting frame 51 is arranged on the inner wall of the noise reduction cover 31, and the high temperature resistant sound absorbing cotton layer 52 is embedded in the mounting frame 51. The noise reduction cover 31 can effectively reduce the noise generated by the hydraulic oil pump station 3 during operation, and the high temperature resistant sound absorbing cotton layer 52 further improves the noise reduction effect and can maintain good sound absorption performance in a high temperature environment. A reinforcing plate 53 is fixedly connected to the outer surface of the mounting frame 51 corresponding to the high temperature resistant sound absorbing cotton layer 52, and a plurality of sound absorbing holes 54 are arranged at equal intervals on the surface of the reinforcing plate 53. The addition of the reinforcing plate 53 and the plurality of sound absorbing holes 54 arranged at equal intervals on the surface improve the structural stability and sound absorption effect of the sound absorbing component 5, thereby further reducing the noise generated by the hydraulic oil pump station 3 during operation.

[0042] In the present embodiment, more specifically, the inner wall of the noise reduction cover 31 is provided with a disassembly assembly 6, and the installation frame 51 is arranged in the noise reduction cover 31 through the disassembly assembly 6. The disassembly assembly 6 includes a plurality of positioning blocks 61 and an electromagnet 62. The positioning block 61 is arranged on the inner wall of the noise reduction cover 31, and a disassembly groove 63 is arranged on the surface of the positioning block 61. The electromagnet 62 is arranged in the disassembly groove 63. A magnetic block 55 is arranged at the rear end of the installation frame 51 and in the disassembly groove 63. The electromagnet 62 can be magnetically attracted to the magnetic block. The disassembly assembly 6 inside the noise reduction cover 31 can realize the rapid installation and disassembly of the installation frame 51, and is convenient for maintenance and replacement of the sound absorbing assembly 5, thereby improving the noise reduction effect. The coordinated use of the positioning block 61 and the electromagnet 62 makes the positioning and fixation of the installation frame 51 more stable and reliable, and the magnetic attraction between the magnetic block 55 and the electromagnet 62 further enhances the stability of the installation frame 51.

[0043] In this embodiment, more specifically, pressure sensors 45 are provided in the fluid delivery pipeline 4 at locations corresponding to the test base 11, the back pressure valve block 43 and the flow meter valve block 44, respectively, for monitoring the pressure value of the solenoid valve test in the fluid delivery pipeline 4. Pressure sensors 45 are provided in the fluid delivery pipeline 4 at locations corresponding to the test base 11, the back pressure valve block 43 and the flow meter valve block 44, respectively, and can monitor the pressure value of the solenoid valve test in the fluid delivery pipeline 4 in real time, thereby ensuring the accuracy and reliability of data during the test process.

[0044] In this embodiment, more specifically, the hydraulic oil pump station 3 is provided with an oil delivery pipeline 32, the second pipeline 42 is connected to the oil delivery pipeline 32, the second pipeline 42 is provided with a plurality of needle valves 46, and are symmetrically arranged on both sides of the diversion pipeline of the test base 11, the oil delivery pipeline 32 provided in the hydraulic oil pump station 3 is connected to the second pipeline 42, and a plurality of needle valves 46 are arranged on the second pipeline 42, these needle valves 46 are symmetrically arranged on both sides of the diversion pipeline of the test base 11, and can accurately control the flow direction and flow rate of the oil, thereby improving the test accuracy and stability.

[0045] In this embodiment, more specifically, the hydraulic oil pump station 3 is provided with an oil pump group 33, and the oil pump group 33 is connected to the oil pipeline 32 for oil supply and transportation. The solenoid valve test device realizes stable oil supply to the test base 11 by arranging the oil pump group 33 on the hydraulic oil pump station 3 and connecting it to the oil pipeline 32, thereby improving the oil supply stability during the test process, thereby ensuring the accuracy of the test results. The oil pipeline 32 is provided with a pressure measuring adapter valve block 34 for monitoring the pressure in the oil pipeline 32. The pressure measuring adapter valve block 34 arranged on the oil pipeline 32 can monitor the pressure in the oil pipeline 32 in real time, ensure the pressure stability during the oil supply process, and help to improve the accuracy and reliability of the solenoid valve test process.

[0046] In the present embodiment, more specifically, a cooling fan 35 is provided on the hydraulic oil pump station 3 for dissipating heat and cooling the hydraulic oil pump station 3. An air outlet duct 36 is provided near the cooling fan 35 of the hydraulic oil pump station 3, and an air inlet duct 37 is provided away from the cooling fan 35. The setting of the cooling fan 35 can effectively dissipate heat and cool the hydraulic oil pump station 3, thereby improving the stability and service life of the hydraulic oil pump station 3 under long-term operation. The design of the air outlet duct 36 and the air inlet duct 37 ensures the effective circulation of cooling air, thereby further enhancing the cooling effect.

[0047] In this embodiment, more specifically, a plurality of plastic pipe clamps 12 are provided on the test bench 1, and the plastic pipe clamps 12 are used to support the fluid delivery pipeline 4. The plurality of plastic pipe clamps 12 provided on the test bench 1 can effectively support and fix the fluid delivery pipeline 4, improve the stability of the pipeline layout, and avoid displacement or shaking of the pipeline during high and low temperature tests or oil pressure tests, thereby ensuring the safety and accuracy of the test process.

[0048] The implementation principle of a solenoid valve testing device in an embodiment of the present application is as follows: the setting of the flow pipeline 4 realizes the connection between the high and low temperature box 2 and the hydraulic oil pump station 3, forming a return pipeline and a shunt pipeline, so that the oil circulates and is supplied during the test. The flow pipeline 4 can effectively combine the different temperature environments provided by the high and low temperature box 2 with the oil supplied by the hydraulic oil pump station 3, thereby realizing accurate pressurization testing of the solenoid valve under different temperature conditions, ensuring the accuracy and reliability of the test results, and during the test, by setting a sound absorbing component 5 on the inner wall of the noise reduction cover 31 at the hydraulic oil pump station 3, the noise generated by the hydraulic oil pump station 3 during operation is reduced.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A solenoid valve test device, characterized in that: include: A test bench (1), wherein a test base (11) is provided on the test bench (1), and the solenoid valve to be tested is connected to the test base (11); A high and low temperature box (2) is arranged on the side of the test bench (1), and the high and low temperature box (2) tests the solenoid valve to be tested under different temperature environments; A hydraulic oil pump station (3) is arranged at the test bench (1) away from the high and low temperature box (2), and the solenoid valve is supplied with oil through the hydraulic oil pump station (3) for a pressurization test; and A fluid delivery pipeline (4) is arranged on the test bench (1); the test base (11) is connected to the fluid delivery pipeline (4); and branch pipelines of the fluid delivery pipeline (4) are respectively connected to the high and low temperature box (2) and the hydraulic oil pump station (3); the fluid delivery pipeline (4) comprises a plurality of first pipelines (41), a second pipeline (42), a back pressure valve block (43) and a flow meter valve block (44); the back pressure valve block (43) is connected to the flow meter valve block (44) via the first pipeline (41). The flow meter valve block (44) is connected with a ball valve, the high and low temperature box (2) is connected to the back pressure valve block (43) in the first pipeline (41) through a ball valve, one of the second pipelines (42) is connected to the test base (11) at the flow meter valve block (44) to form a return pipeline, and the other second pipeline (42) is connected to the hydraulic oil pump station (3) at the flow meter valve block (44) and extends a diversion pipeline to be connected to the test base (11).

2. A solenoid valve testing device according to claim 1, characterized in that: The hydraulic oil pump station (3) is provided with a noise reduction cover (31), and the inner wall of the noise reduction cover (31) is provided with a sound absorbing component (5), the sound absorbing component (5) comprises a mounting frame (51) and a high temperature resistant sound absorbing cotton layer (52), the mounting frame (51) is arranged on the inner wall of the noise reduction cover (31), and the high temperature resistant sound absorbing cotton layer (52) is embedded in the mounting frame (51).

3. A solenoid valve testing device according to claim 2, characterized in that: A reinforcing plate (53) is fixedly connected to the outer surface of the installation frame (51) corresponding to the high-temperature resistant sound-absorbing cotton layer (52), and a plurality of sound-absorbing holes (54) are arranged at equal intervals on the surface of the reinforcing plate (53).

4. A solenoid valve testing device according to claim 2, characterized in that: The inner wall of the noise reduction cover (31) is provided with a disassembly assembly (6), the installation frame (51) is arranged in the noise reduction cover (31) through the disassembly assembly (6), the disassembly assembly (6) comprises a plurality of positioning blocks (61) and electromagnets (62), the positioning blocks (61) are arranged on the inner wall of the noise reduction cover (31), the surface of the positioning blocks (61) is provided with a disassembly groove (63), the electromagnet (62) is arranged in the disassembly groove (63), a magnetic block (55) is arranged at the rear end of the installation frame (51) and in the disassembly groove (63), and the electromagnet (62) can be magnetically attracted to the magnetic attraction block.

5. The solenoid valve testing device according to claim 1, characterized in that: Pressure sensors (45) are provided in the fluid delivery pipeline (4) at locations corresponding to the test base (11), the back pressure valve block (43) and the flow meter valve block (44), respectively, for monitoring the pressure value of the electromagnetic valve test in the fluid delivery pipeline (4).

6. The solenoid valve testing device according to claim 1, characterized in that: The hydraulic oil pump station (3) is provided with an oil delivery pipeline (32), the second pipeline (42) is connected to the oil delivery pipeline (32), and the second pipeline (42) is provided with a plurality of needle valves (46) which are symmetrically arranged on both sides of the diversion pipeline of the test base (11).

7. A solenoid valve testing device according to claim 6, characterized in that: The hydraulic oil pump station (3) is provided with an oil delivery pump group (33), and the oil delivery pump group (33) is connected to the oil delivery pipeline (32) to supply and transport oil.

8. The solenoid valve testing device according to claim 6, characterized in that: The oil pipeline (32) is provided with a pressure measuring transfer valve block (34) for monitoring the pressure in the oil pipeline (32).

9. The solenoid valve testing device according to claim 1, characterized in that: The hydraulic oil pump station (3) is provided with a cooling fan (35) for dissipating heat and cooling the hydraulic oil pump station (3); the hydraulic oil pump station (3) is provided with an air outlet duct (36) close to the cooling fan (35), and an air inlet duct (37) away from the cooling fan (35).

10. The solenoid valve testing device according to claim 1, characterized in that: A plurality of plastic pipe clamps (12) are arranged on the test bench (1), and the plastic pipe clamps (12) are used to support the fluid delivery pipeline (4).

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