A relay sticking detection system and a detection method

Abstract

The application discloses a kind of relay sticking detection system and detection method, belong to relay detection field.A kind of relay sticking detection system, including strip board, still include multimeter, fixedly installed in the upper end of the strip board, wherein, two symmetrical strip grooves are arranged on the strip board, two The sliding block is slidably connected in the strip groove;Two detection rods are connected in the lower end of two The sliding block by elastic abutting mechanism, wherein, two The detection rod is electrically connected with multimeter, and the lower end of two The detection rod is fixedly installed with jack;The application can quickly judge whether the internal relay appears sticking, greatly improves the detection efficiency of relay, and can also automatically clean the terminal post of relay, and indirectly improve the accuracy of relay detection.

Description

Technical Field

[0001] This invention relates to the field of relay testing technology, and in particular to a relay adhesion detection system and method. Background Technology

[0002] A relay is an electrical control device that causes a predetermined step change in the controlled variable in the electrical output circuit when the input quantity changes to a specified value. It establishes an interactive relationship between the control system and the controlled system. Commonly used in automated control circuits, it essentially functions as an "automatic switch" that uses a small current to control a large current. Therefore, it plays roles in automatic adjustment, safety protection, and circuit switching within circuits.

[0003] In existing technology, after a long period of operation, the internal opening and closing mechanism of a relay is prone to sticking. As a result, workers need to inspect it. During the inspection, it is often necessary to remove it from the equipment, which makes the inspection process cumbersome. The disassembly and inspection process can also affect the normal operation of the equipment. When there are a large number of relays and they need to be inspected and eliminated one by one, the impact will be more obvious. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that it is inconvenient to detect the adhesion of relays in the prior art, and to propose a relay adhesion detection system and detection method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A relay adhesion detection system includes a strip plate and a multimeter, which are fixedly installed on the upper end of the strip plate. The strip plate has two symmetrically arranged strip grooves, and a slider is slidably connected in each of the two strip grooves. Two detection rods are connected to the lower ends of the two sliders through an elastic clamping mechanism. Both detection rods are electrically connected to the multimeter, and a screwdriver is fixedly installed at the lower end of each detection rod.

[0007] To ensure a tighter connection between the screwdriver and the relay terminal, the elastic clamping mechanism preferably includes a connecting post located at the lower end of the slider. The upper end of the connecting post has a sliding hole, in which a sliding column fixedly connected to the slider is longitudinally slidably connected. The sliding column and the inner bottom of the sliding hole are elastically connected by a first spring. The lower end of the connecting post has a circular hole, and the detection rod is rotatably connected to the inner top of the circular hole.

[0008] To lock the slider in the slot, the outer wall of the slider is provided with a first slide groove, a first slide plate is slidably connected in the first slide groove, and a connecting pipe extending into the first slide groove is provided in the slide hole.

[0009] To drive the detection rod to rotate, a drive motor is further fixedly installed on the outer wall of the connecting column. The drive motor is connected to the detection rod through a connecting assembly, and the drive motor drives the detection rod to rotate through the connecting assembly.

[0010] To enable the relay terminal screws to tighten automatically, the connection assembly further includes multiple second slide grooves disposed on the outer wall of the detection rod. Each of the multiple second slide grooves has a second sliding plate slidably connected within it. The second sliding plate is elastically connected to the inner wall of the second slide groove by a second spring. One side of the second sliding plate extends into a circular hole. An annular plate is fixedly connected to the inner wall of the circular hole. The annular plate is connected to the output shaft of the drive motor by two meshing gears. Multiple protrusions are fixedly connected to the inner wall of the annular plate.

[0011] To further remove the dust accumulated on the relay terminal screws, the second slide groove is provided with an air intake pipe and an exhaust pipe extending to the outer wall of the detection rod. A one-way valve is fixedly installed in both the air intake pipe and the exhaust pipe. The lower end of the screwdriver is provided with an air blowing hole, and the end of the exhaust pipe is connected to the air blowing hole.

[0012] To further prevent the blown-out dust from polluting the surrounding environment, the lower outer wall of the detection rod is provided with a mounting hole, in which an inclined filter plate is fixedly installed, and the end of the suction pipe extends into the mounting hole.

[0013] To facilitate operation of the entire device, preferably, handles and push plates are fixedly connected to both sides of the strip plate and the upper end of the slider, respectively.

[0014] To ensure a tighter connection between the screwdriver and the relay terminal, preferably, a magnet is fixedly connected inside the screwdriver.

[0015] A detection method for detecting relay sticking, the operation steps are as follows:

[0016] Step 1: Push the two sliders so that the distance between the two detection rods is the same as the distance between the terminals of the relay;

[0017] Step 2: Insert the screwdrivers on the two test rods into the terminal screws of the relay respectively;

[0018] Step 3: Press down on the strip plate to make the screwdriver at the lower end of the test rod spring against the terminal screw;

[0019] Step 4: Start the drive motor, align the screwdriver with the terminal screw hole, and tighten the screw completely;

[0020] Step 5: Use a multimeter to observe the resistance between the two terminals. If the resistance is infinite, the relay is in an open state; otherwise, the relay is in a closed state.

[0021] Compared with the prior art, the present invention provides a relay adhesion detection system, which has the following beneficial effects:

[0022] 1. This relay adhesion detection system allows you to quickly determine whether there is adhesion inside the relay by inserting the screwdrivers on the two detection rods into the terminal screws of the relay. At this time, you can observe the resistance between the two terminals with a multimeter. If the resistance is infinite, it means that the relay is in an open state. If the resistance is close to zero, it means that the relay is in a closed state. This greatly improves the detection efficiency of the relay.

[0023] 2. This relay adhesion detection system, by pressing down on the strip plate, causes the slider to move the slide column to press against the first spring. The first spring then causes the screwdriver at the lower end of the detection rod to elastically press against the terminal screw, thereby making the screwdriver and the terminal screw more tightly connected, and thus making the multimeter's test results more accurate.

[0024] 3. This relay adhesion detection system uses a drive motor to rotate a screwdriver. This makes the screwdriver fit more closely to the terminal screw and tightens any loose screws, thus effectively ensuring the connection stability between the screwdriver and the relay and indirectly improving the accuracy of relay detection.

[0025] 4. This relay adhesion detection system uses multiple protrusions to strike multiple second sliding plates in sequence. The multiple second sliding plates will cause the detection rod and screwdriver to vibrate. The vibration will loosen the dust on the screw, thereby making the contact between the screwdriver and the screw tighter and further improving the detection accuracy of the relay.

[0026] 5. This relay adhesion detection system compresses the air in the second slide groove through the second slide plate. The air in the second slide groove is then vented through the exhaust pipe to the air blowing hole, which blows out the dust on the terminal screws. This automatically cleans the relay terminals and indirectly improves the accuracy of relay detection.

[0027] 6. In this relay adhesion detection system, the second slide plate extends into the second slide groove, and a negative pressure is generated in the second slide groove. The mounting hole will suck away some of the dust blown out by the air blowing hole and filter it through the filter plate, thereby preventing the cleaned dust from polluting the surrounding air. Attached Figure Description

[0028] Figure 1 This is a first-view isometric structural diagram of a relay adhesion detection system proposed in this invention;

[0029] Figure 2 This is a second-view isometric structural diagram of a relay adhesion detection system proposed in this invention;

[0030] Figure 3 This is a partial isometric structural diagram of a relay adhesion detection system proposed in this invention;

[0031] Figure 4 This invention proposes a relay adhesion detection system. Figure 3 Schematic diagram of a local structure in the middle;

[0032] Figure 5 This invention proposes a relay adhesion detection system. Figure 3 Front view sectional structural diagram;

[0033] Figure 6 This invention proposes a relay adhesion detection system. Figure 5 Schematic diagram of part A in the middle;

[0034] Figure 7 This is a schematic diagram of a partial front view of a relay adhesion detection system proposed in this invention.

[0035] In the diagram: 1. Strip plate; 2. Multimeter; 3. Detection rod; 4. Screwdriver; 5. Strip groove; 6. Slider; 7. Push plate; 8. Handle; 9. Connecting post; 10. Sliding post; 11. Sliding hole; 12. First spring; 13. First slide groove; 14. First slide plate; 15. Connecting pipe; 16. Round hole; 17. Second slide groove; 18. Second slide plate; 19. Annular plate; 20. Protrusion; 21. Drive motor; 22. Gear; 23. Second spring; 24. Air blowing hole; 25. Exhaust pipe; 26. Inhalation pipe; 27. Mounting hole; 28. Filter plate; 29. ​​Magnet; 30. One-way valve; 31. Sleeve; 32. Buffer block; 33. Detection lens; 34. Elastic buffer airbag; 35. Annular pipe; 36. Air blowing nozzle; 37. Air supply pipe; 38. Branch pipe; 39. Inner pipe; 40. Connecting pipe. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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, they should not be construed as limitations on this invention.

[0038] Example 1:

[0039] Reference Figures 1-6 A relay adhesion detection system includes a strip plate 1 and a multimeter 2 for detecting the resistance, voltage, and current between relay terminals, which is fixedly installed on the upper end of the strip plate 1. The strip plate 1 has two symmetrically arranged strip grooves 5, and a slider 6 is slidably connected in each of the two strip grooves 5. Two detection rods 3 connected to the multimeter 2 are connected to the lower ends of the two sliders 6 through an elastic clamping mechanism. Both detection rods 3 are electrically connected to the multimeter 2, and a screwdriver 4 for tightening the relay terminal screws is fixedly installed at the lower end of each detection rod 3.

[0040] When a relay needs to be tested, there is no need to disassemble the relay. Push the two sliders 6 so that they slide within the slot 5, thereby changing the distance between the two test rods 3 so that the distance between the two test rods 3 is the same as the distance between the relay terminals. Then, insert the screwdrivers 4 on the two test rods 3 into the relay terminal screws respectively. At this time, the resistance between the two terminals can be observed by using a multimeter 2. If the resistance is infinite, it means that the relay is in an open state. If the resistance is close to zero, it means that the relay is in a closed state. This allows for a quick determination of whether there is adhesion inside the relay, greatly improving the relay testing efficiency. Since relays are mostly installed on equipment in factories, the harsh environment in factories can cause the relay terminal screws to be contaminated with dust. Therefore, when inserting the screwdrivers 4 into the terminal screws, press down on the slot plate 1. The elastic clamping mechanism will make the screwdrivers 4 and the terminal screws more tightly, thus making the test results of the multimeter 2 more accurate.

[0041] Furthermore, handles 8 and push plates 7 are fixedly connected to both sides of the strip plate 1 and the upper end of the slider 6, respectively. The handles 8 make it easier to pick up the strip plate 1, and the push plates 7 make it easier to push the slider 6.

[0042] Furthermore, the screwdriver 4 is internally fixed with a magnet 29, which allows the screwdriver 4 to be attracted to the screw of the relay terminal, thereby making the connection between the screwdriver 4 and the terminal more secure.

[0043] Example 2:

[0044] Reference Figures 1-3 as well as Figure 5 Similar to Embodiment 1, but further, a specific implementation plan for the elastic clamping mechanism is disclosed.

[0045] The elastic clamping mechanism includes a connecting post 9 located at the lower end of the slider 6, and a sliding hole 11 located at the upper end of the connecting post 9. A sliding post 10, which is fixedly connected to the slider 6, is longitudinally slidably connected in the sliding hole 11. The sliding post 10 and the inner bottom of the sliding hole 11 are elastically connected by a first spring 12. A circular hole 16 is located at the lower end of the connecting post 9, and the detection rod 3 is rotatably connected to the inner top of the circular hole 16.

[0046] When the screwdriver 4 is inserted into the terminal screw, the strip plate 1 is pressed down. The strip plate 1 will cause the slider 6 to drive the slide column 10 to press the first spring 12. The first spring 12 will cause the screwdriver 4 at the lower end of the test rod 3 to elastically press against the terminal screw, thereby making the screwdriver 4 and the terminal screw more tightly, and thus making the test results of the multimeter 2 more accurate.

[0047] Furthermore, the outer wall of the slider 6 is provided with a first groove 13, and a first slide plate 14 is slidably connected in the first groove 13. A connecting pipe 15 extending into the first groove 13 is provided in the sliding hole 11. After the strip plate 1 is pressed, the air in the sliding hole 11 is squeezed by the sliding column 10, and then the air in the sliding hole 11 is transported to the first groove 13 through the connecting pipe 15. The first slide plate 14 in the first groove 13 will then press against the inner wall of the strip groove 5, so that the slider 6 is locked in the strip groove 5, thereby improving the stability of the detection relay process.

[0048] Example 3:

[0049] Reference Figures 1-6 The implementation is basically the same as in Example 2, but with a further addition of a specific implementation scheme that makes the detection rod 3 rotate.

[0050] A drive motor 21 is fixedly installed on the outer wall of the connecting column 9. The drive motor 21 is connected to the detection rod 3 through the connecting assembly. The drive motor 21 drives the detection rod 3 to rotate through the connecting assembly. The connecting assembly includes a plurality of second slide grooves 17 disposed on the outer wall of the detection rod 3. A second slide plate 18 is slidably connected in each of the plurality of second slide grooves 17. The second slide plate 18 is elastically connected to the inner wall of the second slide groove 17 through a second spring 23. One side of the second slide plate 18 extends into the circular hole 16. An annular plate 19 is fixedly connected to the inner wall of the circular hole 16. The annular plate 19 is connected to the output shaft of the drive motor 21 through two meshing gears 22. A plurality of protrusions 20 are fixedly connected to the inner wall of the annular plate 19. The opposing surfaces of the protrusions 20 and the second slide plate 18 are all arc-shaped.

[0051] After pressing down on the strip plate 1, the drive motor 21 is activated. The drive motor 21 drives the annular plate 19 to rotate through two meshing gears 22. The annular plate 19 then drives multiple protrusions 20 to sweep circumferentially. The multiple protrusions 20 push multiple second sliding plates 18 to sweep circumferentially. The multiple second sliding plates 18 drive the detection rod 3 to rotate. The detection rod 3 drives the screwdriver 4 to rotate. When the screwdriver 4 is aligned with the terminal screw hole, the screwdriver 4 is inserted into the terminal screw and drives the screw to rotate. When the screw is fully tightened, the detection rod 3 cannot rotate. At this time, the pushing force of the protrusion 20 will be greater than the elastic force of the second spring 23. Therefore, the protrusion 20 will push the second sliding plate 18 to slide into the second sliding groove 17. When the protrusion 20 passes the second sliding plate 18, the second sliding... Plate 18 extends out of the second slide groove 17 under the elastic force of the second spring 23. Thus, the circumferentially sweeping protrusion 20 will not drive the detection rod 3 and screwdriver 4 to rotate. On the one hand, it will make the screwdriver 4 more closely contact the terminal screw, and on the other hand, it will tighten the loose screw, thereby effectively ensuring the connection stability between the screwdriver 4 and the relay, indirectly improving the accuracy of relay detection. After the screw is tightened, multiple protrusions 20 will hit multiple second slide plates 18 in sequence. Multiple second slide plates 18 will drive the detection rod 3 and screwdriver 4 to vibrate. The vibration will loosen the dust on the screw, thereby making the contact between the screwdriver 4 and the screw tighter, further improving the detection accuracy of the relay. When it is necessary to read the data on the multimeter 2, the drive motor 21 is turned off.

[0052] Example 4:

[0053] Reference Figures 3-6 The implementation is basically the same as in Example 3, but with a further addition: a specific implementation plan for cleaning the screws of the relay terminals is added.

[0054] The second slide 17 is provided with an air intake pipe 26 and an exhaust pipe 25 extending to the outer wall of the detection rod 3. A one-way valve 30 is fixedly installed in both the air intake pipe 26 and the exhaust pipe 25. The lower end of the screwdriver 4 is provided with an air blowing hole 24, and the end of the exhaust pipe 25 is connected to the air blowing hole 24.

[0055] When the second slide plate 18 slides into the second slide groove 17, the second slide plate 18 compresses the air in the second slide groove 17. The air in the second slide groove 17 is then expelled through the exhaust pipe 25 to the air blowing hole 24. The air blowing hole 24 blows out the dust on the terminal screw, which automatically cleans the relay terminal and indirectly improves the accuracy of relay detection. During this period, the vibrating screwdriver 4 makes the air blowing hole 24 more efficient in cleaning the relay terminal. When the second slide plate 18 extends out of the second slide groove 17, a negative pressure is generated in the second slide groove 17, and air is drawn in through the suction pipe 26.

[0056] Furthermore, the lower outer wall of the detection rod 3 is provided with a mounting hole 27, and an inclined filter plate 28 is fixedly installed in the mounting hole 27. The end of the suction pipe 26 extends into the mounting hole 27. When the suction pipe 26 draws in air, it will draw air into the mounting hole 27. The mounting hole 27 will then draw away some of the dust blown out by the air blowing hole 24 and filter it through the filter plate 28, thereby preventing the cleaned dust from polluting the surrounding air.

[0057] Example 5:

[0058] Reference Figures 5-7 Similar to Embodiment 4, but further, a detector with a detection lens 33 is fixedly installed on the strip plate 1. The detector is an infrared thermal imager or a laser scanner. A sleeve 31 is fixedly connected to the lower end of the strip plate 1. A buffer block 32 is longitudinally slidably connected inside the sleeve 31. There is damping between the buffer block 32 and the inner wall of the sleeve 31. The detection lens 33 is fixedly installed at the bottom of the buffer block 32. The buffer block 32 and the inner top of the sleeve 31 are elastically connected by an elastic buffer airbag 34.

[0059] Therefore, in actual testing, the detector on the bar plate 1 can detect whether there are cracks on the relay through the detection lens 33, so that the staff can find the problem in time. During the testing process, the detection rod 3 will vibrate and transmit the vibration to the detection lens 33. At this time, the elastic buffer airbag 34 between the buffer block 32 and the bar plate 1 can offset part of the vibration, thereby reducing the impact of vibration on the detection lens 33 and indirectly improving the accuracy of the test results.

[0060] Furthermore, an annular tube 35 is fixedly installed at the lower end of the buffer block 32, and an air nozzle 36 facing the outer wall of the detection lens 33 is fixedly installed at the lower end of the annular tube 35. The elastic buffer airbag 34 and the annular tube 35 are connected through an air supply pipe 37. The top of the detection rod 3 is provided with a branch pipe 38 that communicates with the air hole 24. The outer wall of the connecting column 9 is provided with an inner tube 39. The input end of the inner tube 39 is aligned with the upper end of the branch pipe 38. The inner tube 39 is connected to the elastic buffer airbag 34 through a connecting pipe 40.

[0061] When the exhaust pipe 25 is intermittently venting, some of the air discharged into the air blowing hole 24 will be transported to the inner pipe 39 through the branch pipe 38, then to the elastic buffer airbag 34 through the connecting pipe 40, and finally to the annular pipe 35 through the air supply pipe 37. Finally, it will be blown from the air blowing nozzle 36 onto the outer wall of the detection lens 33, thereby blowing off the dust on the outer wall of the detection lens 33 to ensure the accuracy of the detection lens 33 when detecting cracks. On the other hand, when the fluctuating airflow passes through the elastic buffer airbag 34, the fluctuating airflow can cancel out the vibration of the detection rod 3 to the detection lens 33, thereby improving the vibration reduction effect of the detection lens 33 and making the detection results more accurate.

[0062] A detection method for detecting relay sticking, the operation steps are as follows:

[0063] Step 1: Push the two sliders 6 so that the distance between the two detection rods 3 is the same as the distance between the terminals of the relay;

[0064] Step 2: Insert the screwdrivers 4 on the two test rods 3 into the terminal screws of the relay respectively;

[0065] Step 3: Press down on the strip plate 1 to make the screwdriver 4 at the lower end of the detection rod 3 spring against the terminal screw;

[0066] Step 4: Start the drive motor 21, align the screwdriver 4 with the terminal screw hole, and tighten the screw completely;

[0067] Step 5: Use a multimeter to observe the resistance between the two terminals. If the resistance is infinite, the relay is in an open state; otherwise, the relay is in a closed state.

[0068] This relay adhesion detection system eliminates the need to disassemble the relay when testing it. By pushing two sliders 6, which slide within the groove 5, the distance between the two detection rods 3 is changed, aligning with the distance between the relay's terminals. Then, screwdrivers 4 on the two detection rods 3 are inserted into the relay's terminal screws. A multimeter 2 can then be used to observe the resistance between the two terminals. Infinite resistance indicates the relay is in an open state, while near-zero resistance indicates it is in a closed state. This allows for rapid determination of whether the relay is stuck, significantly improving testing efficiency.

[0069] Since most relays are installed in factory equipment, the harsh environment in the factory can cause the relay terminal screws to be contaminated with dust. Therefore, when the screwdriver 4 is inserted into the terminal screw, the strip plate 1 is pressed down. The strip plate 1 will cause the slider 6 to drive the slide column 10 to press the first spring 12. The first spring 12 will cause the screwdriver 4 at the lower end of the test rod 3 to elastically press against the terminal screw, thereby making the screwdriver 4 and the terminal screw more tightly, and thus making the test results of the multimeter 2 more accurate.

[0070] After pressing down on the strip plate 1, the drive motor 21 is activated. The drive motor 21 drives the annular plate 19 to rotate through two meshing gears 22. The annular plate 19 then drives multiple protrusions 20 to sweep circumferentially. The multiple protrusions 20 push multiple second sliding plates 18 to sweep circumferentially. The multiple second sliding plates 18 drive the detection rod 3 to rotate. The detection rod 3 drives the screwdriver 4 to rotate. When the screwdriver 4 is aligned with the terminal screw hole, the screwdriver 4 will be inserted into the terminal screw and drive the screw to rotate. When the screw is fully tightened, the detection rod 3 will not be able to rotate. At this time, the pushing force of the protrusion 20 will be greater than the elastic force of the second spring 23. Therefore, the protrusion 20 will push the second sliding plate 18 to slide into the second sliding groove 17. When the protrusion 20... When passing the second slide plate 18, the second slide plate 18 will extend out of the second slide groove 17 under the elastic force of the second spring 23. Thus, the circumferentially sweeping protrusion 20 will not drive the detection rod 3 and screwdriver 4 to rotate. On the one hand, it will make the screwdriver 4 more closely contact the terminal screw, and on the other hand, it will tighten the loose screw, thereby effectively ensuring the connection stability between the screwdriver 4 and the relay, indirectly improving the accuracy of relay detection. After the screw is tightened, multiple protrusions 20 will hit multiple second slide plates 18 in sequence. Multiple second slide plates 18 will drive the detection rod 3 and screwdriver 4 to vibrate. The vibration will loosen the dust on the screw, thereby making the contact between the screwdriver 4 and the screw tighter, further improving the detection accuracy of the relay.

[0071] When the second slide plate 18 slides into the second slide groove 17, the second slide plate 18 compresses the air in the second slide groove 17. The air in the second slide groove 17 is then expelled through the exhaust pipe 25 to the air blowing hole 24. The air blowing hole 24 blows out the dust on the terminal screw, which automatically cleans the relay terminal and indirectly improves the accuracy of relay detection. During this period, the vibrating screwdriver 4 makes the air blowing hole 24 more efficient in cleaning the relay terminal. When the second slide plate 18 extends out of the second slide groove 17, a negative pressure is generated in the second slide groove 17, and air is drawn in through the suction pipe 26. The suction pipe 26 draws air into the mounting hole 27, and the mounting hole 27 sucks away some of the dust blown out by the air blowing hole 24 and filters it through the filter plate 28, thereby preventing the cleaned dust from polluting the surrounding air.

[0072] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A relay adhesion detection system, comprising a strip plate (1), characterized in that, Also includes: The multimeter (2) is fixedly installed on the upper end of the strip plate (1). The strip plate (1) is provided with two symmetrically arranged strip grooves (5), and a slider (6) is slidably connected in both strip grooves (5). Two detection rods (3) are connected to the lower ends of the two sliders (6) by an elastic clamping mechanism. Both of the two test rods (3) are electrically connected to the multimeter (2), and a screwdriver (4) is fixedly installed at the lower end of both test rods (3). The elastic clamping mechanism includes: A connecting post (9) is provided at the lower end of the slider (6), and a sliding hole (11) is provided at the upper end of the connecting post (9). The sliding hole (11) is longitudinally slidably connected to a sliding column (10) which is fixedly connected to the slider (6). The sliding column (10) and the inner bottom of the sliding hole (11) are elastically connected by a first spring (12). The lower end of the connecting column (9) is provided with a round hole (16). The detection rod (3) is rotatably connected to the inner top of the round hole (16). A drive motor (21) is fixedly installed on the outer wall of the connecting column (9). The drive motor (21) is connected to the detection rod (3) through the connecting assembly. The drive motor (21) drives the detection rod (3) to rotate through the connecting assembly. The connection component includes: Multiple second slide grooves (17) are provided on the outer wall of the detection rod (3), and a second slide plate (18) is slidably connected in each of the multiple second slide grooves (17). The second slide plate (18) and the inner wall of the second slide groove (17) are elastically connected by a second spring (23). One side of the second slide plate (18) extends into the circular hole (16). The inner wall of the circular hole (16) is fixedly connected to an annular plate (19). The annular plate (19) is connected to the output shaft of the drive motor (21) by two meshing gears (22). The inner wall of the annular plate (19) is fixedly connected to multiple protrusions (20).

2. The relay adhesion detection system according to claim 1, characterized in that, The outer wall of the slider (6) is provided with a first slide groove (13), and a first slide plate (14) is slidably connected in the first slide groove (13). The slide hole (11) is provided with a connecting pipe (15) extending into the first slide groove (13).

3. The relay adhesion detection system according to claim 1, characterized in that, The second slide (17) is provided with an air intake pipe (26) and an exhaust pipe (25) extending to the outer wall of the detection rod (3). A one-way valve (30) is fixedly installed in both the air intake pipe (26) and the exhaust pipe (25). The screwdriver (4) has an air hole (24) at its lower end, and the end of the exhaust pipe (25) is connected to the air hole (24).

4. The relay adhesion detection system according to claim 3, characterized in that, The lower outer wall of the detection rod (3) is provided with a mounting hole (27), and an inclined filter plate (28) is fixedly installed in the mounting hole (27). The end of the suction pipe (26) extends into the mounting hole (27).

5. The relay adhesion detection system according to claim 1, characterized in that, Handles (8) and push plates (7) are fixedly connected to both sides of the strip plate (1) and the upper end of the slider (6), respectively.

6. The relay adhesion detection system according to claim 1, characterized in that, The screwdriver (4) is internally fixedly connected to a magnet (29).

7. A method for detecting relay adhesion, employing the relay adhesion detection system according to any one of claims 1-6, characterized in that, The operation steps are as follows: Step 1: Push the two sliders (6) so that the distance between the two detection rods (3) is the same as the distance between the terminals of the relay; Step 2: Insert the screwdrivers (4) on the two test rods (3) into the terminal screws of the relay respectively; Step 3: Press down on the strip plate (1) so that the screwdriver (4) at the lower end of the detection rod (3) is elastically pressed against the terminal screw; Step 4: Start the drive motor (21), align the screwdriver (4) with the terminal screw hole, and tighten the screw completely; Step 5: Use a multimeter (2) to observe the resistance between the two terminals. If the resistance is infinite, it means that the relay is in an open state. Otherwise, the relay is in a closed state.

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