Testing device of electromagnetic valve

Abstract

The utility model relates to a testing device of an electromagnetic valve, and belongs to the technical field of electromagnetic valve testing. The protruding end or the groove end of the pressing plate faces the main mounting plate and is connected with the main mounting plate through a fastening bolt, the air supply device is connected with an air inlet hole in the side face of the main mounting plate through an air supply pipeline, and the direct-current stabilized power supply is used for being connected with a tested electromagnetic valve. The testing device for the electromagnetic valve has the advantages of being novel in structure, capable of meeting most testing requirements of the electromagnetic valve, simple in structure, easy to machine, low in cost, convenient to operate and the like, and cost reduction and efficiency improvement can be greatly achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromagnetic valve testing. Background Art

[0002] With the rapid development of science and technology, the application of various types of construction machinery has increased, and integrated products such as electromechanical, hydraulic, and pneumatic systems have emerged in large numbers. As a result, the use of solenoid valves has increased significantly. Consequently, the testing requirements for solenoid valves have also increased. Testing agencies require professional, accurate, and comprehensive testing of solenoid valves, but these tests are often time-consuming, inconvenient, and require complex, costly, and uneconomical testing equipment. Summary of the Invention

[0003] The utility model provides a testing device for a solenoid valve, which solves the problem of complex testing equipment structure in current testing devices.

[0004] The technical solution adopted by the utility model is to include a DC regulated power supply, a main mounting plate, a pressure plate, fastening bolts and an air supply device, wherein the raised end or the groove end of the pressure plate faces the main mounting plate and is connected by the fastening bolts, the air supply device is connected to the air inlet hole on the side of the main mounting plate through an air supply pipeline, and the DC regulated power supply is used to connect the solenoid valve to be tested.

[0005] The DC regulated power supply is of an adjustable output voltage type to meet the voltage requirements of different solenoid valves under test.

[0006] The main mounting plate includes an air inlet hole, an exhaust hole, an air duct, a mounting hole for the solenoid valve to be tested, and a mounting hole for the solenoid valve core to be tested. The main mounting plate has an air inlet hole on the side and an exhaust hole on the bottom. The air inlet hole is connected to the exhaust hole through the air duct via the mounting hole for the solenoid valve core to be tested.

[0007] The number of the air passages connected to the mounting hole of the electromagnetic valve core to be tested is 1 to 5.

[0008] The structure of the pressure plate is that one side is a convex end and the other side is a groove end. When testing the solenoid valve, the groove end faces the solenoid valve; when testing the solenoid valve core, the convex end faces the tested solenoid valve core.

[0009] The utility model has the advantages of novel structure. It belongs to a solenoid valve testing device used in the field of engineering technology, can meet most of the testing requirements of solenoid valves, and has the characteristics of simple structure, easy processing, low cost, easy operation, etc., which can greatly reduce costs and increase efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the utility model;

[0011] Figure 2 It is a cross-sectional view of the utility model;

[0012] Figure 3 This is a test state diagram of the solenoid valve of the utility model, showing the direction of gas;

[0013] Figure 4 This is a test state diagram of the electromagnetic valve core of the utility model;

[0014] Figure 5 It is a structural schematic diagram of the pressing plate of the utility model. DETAILED DESCRIPTION

[0015] like Figure 1 As shown, it includes a DC regulated power supply 1, a main mounting plate 2, a pressure plate 3, a fastening bolt 4 and an air supply device 5, wherein the raised end 301 or the groove end 302 of the pressure plate 3 faces the main mounting plate 2 and is connected by the fastening bolt 4, and the air supply device 5 is connected to the air inlet 201 on the side of the main mounting plate 2 through the air supply pipeline 501, and the DC regulated power supply 1 is used to connect the solenoid valve 6 to be tested.

[0016] The DC regulated power supply 1 is of an adjustable output voltage type to adapt to the voltage requirements of different solenoid valves 6 being tested.

[0017] like Figure 2 、 3 As shown, the main mounting plate 2 includes an air inlet hole 201, an exhaust hole 202, an air duct 203, a mounting hole 204 of the solenoid valve to be tested, and a mounting hole 205 of the solenoid valve core to be tested. The main mounting plate 2 has an air inlet hole 201 on the side and an exhaust hole 202 on the bottom. The air inlet hole 201 is connected to the exhaust hole 202 through the air duct 203 and the mounting hole 205 of the solenoid valve core to be tested.

[0018] The number of the air passages 206 connected to the mounting hole 205 of the electromagnetic valve core to be tested is 1 to 5.

[0019] like Figure 5 As shown, the structure of the pressure plate 3 is a raised end 301 on one side and a groove end 302 on the other side. When testing the solenoid valve, the groove end 302 faces the solenoid valve; when testing the solenoid valve core, the raised end 301 faces the solenoid valve core being tested.

[0020] Working principle:

[0021] (1) Conduct performance and durability tests on solenoid valves;

[0022] like Figure 3As shown, the main mounting plate 2 is placed on a fixed table, and a mounting hole 204 of the solenoid valve to be tested is provided in the groove on the main mounting plate 2. The solenoid valve to be tested 6 is installed thereon, and the groove end 302 of the pressure plate 3 faces the solenoid valve to be tested 6, pressing it. The solenoid valve to be tested 6 is installed between the main mounting plate 2 and the pressure plate 3 and fastened with a fastening bolt 4. The terminal of the solenoid valve to be tested 6 is exposed from the process hole reserved in the pressure plate 3 and connected to the DC regulated power supply 1; when the solenoid valve to be tested 6 is energized, the electromagnetic coil generates magnetic force, pulling the iron core in the solenoid valve core therein to move up and down, and compressed air enters the air inlet hole of the main mounting plate 2 from the pipeline, and the air inlet hole is connected to the solenoid valve core. When the iron core is upward, the channel of the solenoid valve core is opened, and the compressed air passes through the solenoid valve core of the solenoid valve to be tested 6 in the direction indicated by the arrow, enters the exhaust hole, and is discharged into the atmosphere; when the iron core is downward, the channel of the solenoid valve core is closed, and the compressed air cannot be discharged. When the power is off, the iron core is at the bottom, and the solenoid valve core of the solenoid valve to be tested is in a normally closed state.

[0023] (2) Perform air tightness test on the solenoid valve core;

[0024] like Figure 4 As shown, when conducting a separate test of the solenoid valve core 7 to be tested, the main mounting plate 2 is placed on a fixed table with a mounting hole 205 for the solenoid valve core to be tested in the groove on the main mounting plate 2. The solenoid valve core to be tested 7 is installed therein, and the raised end of the pressure plate 3 is facing the solenoid valve core to be tested 7. It is fastened with a shorter fastening bolt 4. There is no need to connect the power supply when testing the air tightness. The air duct where the solenoid valve core to be tested is installed is connected to the air supply device 5 through a pipeline. The input air pressure is adjusted as needed. It can be observed by immersing it in a water sink or applying soapy solution. If no bubbles emerge, it means that the air tightness is intact.

[0025] According to actual needs, external related devices such as PWM controller, counter, display, etc. can be connected during testing.

Claims

1. A solenoid valve testing device, characterized in that: It includes a DC regulated power supply, a main mounting plate, a pressure plate, fastening bolts and an air supply device, wherein the raised end or groove end of the pressure plate faces the main mounting plate and is connected by fastening bolts. The air supply device is connected to the air inlet hole on the side of the main mounting plate through an air supply pipeline. The DC regulated power supply is used to connect the solenoid valve under test.

2. A solenoid valve testing device according to claim 1, characterized in that: The DC regulated power supply is of an adjustable output voltage type.

3. The solenoid valve testing device according to claim 1, characterized in that: The main mounting plate includes an air inlet hole, an exhaust hole, an air duct, a mounting hole for the solenoid valve to be tested, and a mounting hole for the solenoid valve core to be tested. The main mounting plate has an air inlet hole on the side and an exhaust hole on the bottom. The air inlet hole is connected to the exhaust hole through the air duct via the mounting hole for the solenoid valve core to be tested.

4. A solenoid valve testing device according to claim 3, characterized in that: The number of the air passages connected to the mounting hole of the electromagnetic valve core to be tested is 1 to 5.

5. The solenoid valve testing device according to claim 1, characterized in that: The structure of the pressure plate is that one side is a convex end and the other side is a groove end. When testing the solenoid valve, the groove end faces the solenoid valve; when testing the solenoid valve core, the convex end faces the tested solenoid valve core.

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