Portable high-voltage thyristor on-line blocking tester

Abstract

The invention relates to the technical field of thyristor testing equipment, in particular to a portable online blocking tester for a high-voltage thyristor. The device comprises a blocking tester body, a placement frame is arranged on the blocking tester body and used for placing a thyristor, an insulation frame is arranged on the periphery of the placement frame and used for wrapping the placement frame and forming a barrier between the placement frame and the blocking tester body, and a detection part, an elastic part and a storage part are arranged in the placement frame. And the detection part is arranged between the elastic part and the accommodating part. Through the arrangement of the detection part and the elastic part, the thyristor can be quickly pushed and separated from the detection part when the thyristor is subjected to high-voltage breakdown, so that the thyristor can be prevented from being continuously damaged by current, the subsequent influence caused by burnout due to overload of the thyristor is also avoided, the detected thyristor is well reserved, and the reliability of the thyristor is improved. Subsequent problem detection is facilitated, meanwhile, damage to detection equipment is avoided, and the safety of the detection process is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of thyristor testing equipment, and in particular to a portable high-voltage thyristor online blocking tester. Background Art

[0002] The thyristor blocking tester is a professional device used to detect the performance of thyristors in the blocking state. Its working principle is mainly to apply specific voltage and current to the thyristor to simulate the actual working environment, and then measure and record various parameters of the thyristor in the blocking state, such as leakage current, blocking voltage, etc. These parameters are crucial for evaluating the quality and performance of thyristors.

[0003] Thyristor is a four-layer, three-terminal semiconductor device that has the ability to operate under high voltage and high current conditions, and its working process can be controlled. However, when the voltage between the two ends of the thyristor exceeds its rated reverse voltage, breakdown may occur. Secondly, the quality of thyristors in production will also vary. If there are quality problems with the thyristor itself, such as material defects, poor manufacturing process, etc., its ability to resist breakdown voltage may be reduced, making it more likely to break down during the detection process. In addition, the performance of the thyristor may also be affected by temperature, humidity, and surrounding electrostatic charges, resulting in high-voltage breakdown.

[0004] Nowadays, when testing thyristors with blocking testers, the blocking testers have less protection against high-voltage breakdown of thyristors. When high-voltage breakdown occurs, the thyristors cannot be removed from the testing site in time, which can easily increase damage to the thyristors and affect the safety of thyristor testing. Summary of the invention

[0005] In view of the problems existing in the background technology, a portable high-voltage thyristor online blocking tester is proposed.

[0006] The present invention proposes a portable high-voltage thyristor online blocking tester, comprising a blocking tester body, wherein a placement frame is arranged on the blocking tester body for placing the thyristor, an insulating frame is arranged outside the placement frame for wrapping the placement frame and forming a barrier between the placement frame and the blocking tester body; a detection part, an elastic part and a storage part are arranged in the placement frame, the detection part is arranged between the elastic part and the storage part, the detection part is used for detecting the thyristor, and the elastic part is used for pushing the thyristor out of the detection part into the storage part when a high-voltage breakdown occurs in the thyristor, so as to reduce the danger in the thyristor measurement process.

[0007] Preferably, the detection part is composed of a conductive frame, a cover plate 1, a placement seat and a fixed frame. The conductive frame is arranged in the placement frame, the cover plate 1 is arranged on the conductive frame, the placement seat is arranged between the conductive frame and the cover plate 1, the fixed frame is arranged on the placement seat, the fixed frame is used to preliminarily fix the thyristor, the placement seat is provided with a clamping assembly, the clamping assembly is used to limit the fixed frame, the conductive frame is provided with a conductive block 1, the cover plate 1 is provided with a conductive block 2, and the conductive block 1 and the conductive block 2 are respectively connected to the cathode and anode of the thyristor.

[0008] Preferably, the clamping assembly consists of two clamping plates and a pushing screw, both clamping plates are arranged on a placement seat, one of which is in a fixed connection and the other is in a movably connected, the pushing screw is threadedly installed on the placement seat, and one end of the pushing screw is rotatably connected to the clamping plate in a movably connected connection.

[0009] Preferably, a sliding hole is provided on the conductive frame, a connecting rod is provided in the sliding hole, the top end of the connecting rod is connected to the cover plate 1, a reset spring is provided in the sliding hole, the reset spring is connected to the connecting rod, and an inclined surface is provided on the placement frame. In the process of placing the detection part in the placement frame, the cover plate 1 is squeezed by the inclined surface on the placement frame to connect it to the conductive frame, and the conductive block 1 and the conductive block 2 are connected to the thyristor.

[0010] Preferably, the elastic part is composed of a fixed seat, an impact rod, an impact spring, an adjustment frame and an electric adjustment rod. The fixed seat is arranged in an installation frame, the impact rod is slidably installed on the fixed seat, the impact spring is installed on the fixed seat, one end of the impact spring is connected to the impact rod, and the impact spring can provide an impact force for the impact rod, so that the impact rod provides an impact on the fixed frame, driving the thyristor to detach from the detection part and enter the storage part. The adjustment frame is arranged on the fixed seat, and is used to limit the impact rod so that the impact spring is in an extruded state. The electric adjustment rod is installed on the fixed seat, and the telescopic shaft of the electric adjustment rod is connected to the adjustment frame, which is used to adjust the angle of the adjustment frame.

[0011] Preferably, the storage portion is composed of a second fixing seat, a second cover plate, a buffer baffle and a buffer spring. The second fixing seat is arranged in the placement frame. A storage groove is opened on the second fixing seat for storing the thyristor. The second cover plate is arranged on the second fixing seat. The buffer baffle is slidably installed in the storage groove. The buffer spring is installed on the second fixing seat, and one end of the buffer spring is connected to the buffer baffle.

[0012] Preferably, a sealing plate is slidably installed on the fixed seat two, and a pushing spring is provided on the fixed seat two, the pushing spring is connected to the sealing plate, and is used to push the sealing plate to move to block the storage groove, a limiting block is slidably installed on the fixed seat two, the limiting block is used to limit the sealing plate, and a pull rope is provided on the fixed seat two, one end of the pull rope is connected to the limiting block, and the other end of the pull rope is connected to the buffer baffle. When the buffer baffle is moved by the impact of the thyristor, the limit block is driven by the pull rope to move and release the limitation on the sealing plate, and the sealing plate is pushed under the action of the pushing spring to block the storage groove, thereby completing the wrapping of the thyristor.

[0013] Preferably, a heat conducting plate is provided on the second cover plate, and the heat conducting plate is made of a copper sheet. The heat conducting plate is inclined, and the side of the heat conducting plate facing the detection part is arc-shaped. After the thyristor enters the storage groove, the thyristor is limited by the heat conducting plate to prevent the thyristor from rebounding after contacting the buffer baffle and continuing to collide with the blocking plate, thereby reducing collision damage to the thyristor. A temperature sensor is provided on the second cover plate, and the temperature sensor is connected to the heat conducting plate. A display screen is provided on the temperature sensor. The temperature of the thyristor is measured by the heat conducting plate, and the temperature on the heat conducting plate is measured by the temperature sensor to understand the temperature of the thyristor after it leaves the detection part.

[0014] Preferably, a clamping groove is opened on the insulating frame, a connecting block is installed on the placement frame, a pulling frame is slidably installed on the connecting block, a clamping block is installed on the pulling frame, the bottom of the clamping block extends into the clamping groove and adapts to the clamping groove, a reinforcing spring is sleeved on the pulling frame, one end of the reinforcing spring is connected to the connecting block, and the other end of the reinforcing spring is connected to the clamping block.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: In the present invention, a mounting frame is arranged on the blocking tester body to perform loading detection of the thyristor, which reduces the use of detection signal lines, saves production costs and improves portability. At the same time, an insulating frame is arranged outside the mounting frame to insulate the entire test part, thereby avoiding current leakage or high-voltage breakdown, and ensuring the safety of the entire detection device and the detection process. By setting the detection part and the elastic part, the thyristor can be quickly pushed and separated from the detection part when the high voltage breakdown of the thyristor occurs, thereby preventing the current from continuing to damage the thyristor, and also avoiding the subsequent impact caused by the burning of the thyristor due to overload, which not only forms a perfect reservation for the detection thyristor, but also facilitates the subsequent problem detection, and also avoids the damage of the detection equipment, ensuring the safety of the detection process; By setting up a storage part, that is, through a buffer baffle and a buffer spring, the thyristor can be stored after being detached. At the same time, a blocking baffle is used to separate the thyristor from the detection part to prevent the thyristor from being hit and returning to the detection part again, thereby further improving the protection of the thyristor.

[0016] At the same time, a temperature sensor and a heat conducting plate are arranged above the storage part, so that the temperature of the thyristor far away from the detection part can be monitored to avoid excessive temperature and scalding of the operator when taking it. At the same time, through the setting of the heat conducting plate, the heat on the thyristor can be transferred, thereby reducing the surface temperature of the thyristor, thereby avoiding the thyristor reaching a cooling state, avoiding damage caused by high surface temperature of the thyristor, and improving the protection effect of the thyristor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the installation frame in the present invention; Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A shown; Figure 4 It is a schematic diagram of the structure of the conducting frame, the placing seat and the fixing frame in the present invention; Figure 5 is a schematic cross-sectional structural diagram of the conductive frame of the present invention; Figure 6 It is a schematic diagram of the structure of the conductive block 1 and the conductive block 2 in the present invention; Figure 7 It is a schematic diagram of the structure of the placement seat, the clamping plate and the pushing screw in the present invention; Figure 8 It is a schematic diagram of the structure of the placement seat, thyristor and fixing frame in the present invention; Fig. 9 It is a schematic cross-sectional structural diagram of a fixing seat 1 in the present invention; Fig.10 It is a structural schematic diagram of the storage part in the present invention.

[0018] 1. Blocking tester body; 2. Insulating frame; 3. Placement frame; 4. Detection part; 5. Elastic part; 6. Storage part; 7. Conducting frame; 8. Cover plate one; 9. Placement seat; 10. Fixed frame; 11. Thyristor; 12. Conducting block one; 13. Conducting block two; 14. Clamping plate; 15. Push screw; 16. Fixed seat one; 17. Impact rod; 18. Impact spring; 19. Adjusting frame; 20. Electric adjusting rod; 21. Fixed seat two; 22. Buffer baffle; 23. Buffer spring; 24. Sealing plate; 25. Limiting block; 26. Pull rope; 27. Cover plate two; 28. Heat conducting plate; 29. ​​Connecting block; 30. Pulling frame; 31. Holding block; 32. Reinforcement spring. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 10As shown, a portable high-voltage thyristor online blocking tester proposed by the present invention comprises: a blocking tester body 1, a placement frame 3 is arranged on the blocking tester body 1, and is used to place a thyristor 11. A joint is arranged on one side of the placement frame 3, and is used to connect with the cast and forged tester body 1. An insulating frame 2 is arranged on the periphery of the placement frame 3, and is used to wrap the placement frame 3, and is used to form a barrier between the placement frame 3 and the blocking tester body 1; a detection part 4, an elastic part 5 and a storage part 6 are arranged in the placement frame 3, and the detection part 4 is arranged between the elastic part 5 and the storage part 6. The detection part 4 is used to detect the thyristor 11, and the elastic part 5 is used to push the thyristor 11 out of the detection part 4 to the storage part 6 when the thyristor 11 has a high-voltage breakdown, so as to reduce the thyristor The danger of the thyristor 11 during the measurement process, wherein the detection part 4 is composed of a conductive frame 7, a cover plate 8, a placement seat 9 and a fixed frame 10, the conductive frame 7 is arranged in the placement frame 3, the cover plate 8 is arranged on the conductive frame 7, the placement seat 9 is arranged between the conductive frame 7 and the cover plate 8, the fixed frame 10 is arranged on the placement seat 9, the fixed frame 10 is used to preliminarily fix the thyristor 11, the placement seat 9 is provided with a clamping assembly, the clamping assembly is used to limit the fixed frame 10, the clamping assembly is composed of two clamping plates 14 and a pushing screw 15, the two clamping plates 14 are both arranged on the placement seat 9, and one of them is in a fixed connection, and the other is in a movable connection, the pushing screw 15 is threadedly installed on the placement seat 9, and one end of the pushing screw 15 is connected to the place The clamping plate 14 is rotatably connected to the movable connection, a conduction block 12 is arranged on the conduction frame 7, and a conduction block 2 13 is arranged on the cover plate 8. The conduction block 12 and the conduction block 2 13 are respectively connected to the cathode and anode of the thyristor 11. The elastic part 5 is composed of a fixed seat 16, an impact rod 17, an impact spring 18, an adjustment frame 19 and an electric adjustment rod 20. The fixed seat 16 is arranged in the placement frame 3, and the impact rod 17 is slidably installed on the fixed seat 16. The impact spring 18 is installed on the fixed seat 16. One end of the impact spring 18 is connected to the impact rod 17. The impact spring 18 can provide an impact force for the impact rod 17, so that the impact rod 17 provides an impact on the fixed frame 10, driving the thyristor 11 to break away from the detection part 4 and enter the storage In the part 6, the adjustment frame 19 is arranged on the fixed seat 16, which is used to limit the impact rod 17 so that the impact spring 18 is in an extruded state. The electric adjustment rod 20 is installed on the fixed seat 16, and the telescopic shaft of the electric adjustment rod 20 is connected to the adjustment frame 19 to adjust the angle of the adjustment frame 19. The storage part 6 is composed of a fixed seat 21, a cover plate 27, a buffer baffle 22 and a buffer spring 23. The fixed seat 21 is arranged in the placement frame 3, and a storage groove is opened on the fixed seat 21 for storing the thyristor 11. The cover plate 27 is arranged on the fixed seat 21, and the buffer baffle 22 is slidably installed in the storage groove. The buffer spring 23 is installed on the fixed seat 21, and one end of the buffer spring 23 is connected to the buffer baffle 22.

[0020] A sliding hole is provided on the conductive frame 7, a connecting rod is provided in the sliding hole, the top end of the connecting rod is connected to the cover plate 8, a reset spring is provided in the sliding hole, the reset spring is connected to the connecting rod, an inclined surface is provided on the placement frame 3, and in the process of placing the detection part 4 into the placement frame 3, the cover plate 8 is squeezed by the inclined surface on the placement frame 3 to make it connected to the conductive frame 7, and the conductive block 1 12 and the conductive block 2 13 are connected to the thyristor 11.

[0021] A blocking plate 24 is slidably installed on the fixed seat 21, and a pushing spring is arranged on the fixed seat 21. The pushing spring is connected to the blocking plate 24 and is used to push the blocking plate 24 to move and block the storage groove. A limiting block 25 is slidably installed on the fixed seat 21, and the limiting block 25 is used to limit the blocking plate 24. A pull rope 26 is arranged on the fixed seat 21, one end of the pull rope 26 is connected to the limiting block 25, and the other end of the pull rope 26 is connected to the buffer baffle 22. When the buffer baffle 22 is moved by the impact of the thyristor 11, the limit block 25 is driven by the pull rope 26 to move and release the limitation on the blocking plate 24. Under the action of the pushing spring, the blocking plate 24 is pushed to block the storage groove, thereby completing the wrapping of the thyristor 11.

[0022] A heat conducting plate 28 is arranged on the cover plate 27. The heat conducting plate 28 is made of copper sheet and is inclined. The heat conducting plate 28 is arranged in an arc shape on the side facing the detection part 4. After the thyristor 11 enters the storage groove, the heat conducting plate 28 is used to limit the thyristor 11 to prevent the thyristor 11 from rebounding and continuing to collide with the blocking plate 24 after contacting the buffer baffle 22, thereby reducing the collision damage to the thyristor 11. A temperature sensor is arranged on the cover plate 27. The temperature sensor is connected to the heat conducting plate 28. A display screen is arranged on the temperature sensor. The temperature of the thyristor 11 is measured by the heat conducting plate 28. The temperature on the heat conducting plate 28 is measured by the temperature sensor to understand the temperature of the thyristor 11 after it leaves the detection part 4.

[0023] A clamping groove is provided on the insulating frame 2, a connecting block 29 is installed on the placement frame 3, a pulling frame 30 is slidably installed on the connecting block 29, a clamping block 31 is installed on the pulling frame 30, the bottom of the clamping block 31 extends into the clamping groove and fits into the clamping groove, a reinforcing spring 32 is sleeved on the pulling frame 30, one end of the reinforcing spring 32 is connected to the connecting block 29, and the other end of the reinforcing spring 32 is connected to the clamping block 31. After the placement frame 3 is placed on the insulating frame 2, the placement frame 3 can be fixed by the clamping groove and the clamping block 31 to ensure the installation stability of the placement frame 3.

[0024] In this embodiment, before use, the thyristor 11 needs to be initially fixed by the fixing frame 10 to facilitate subsequent installation, and then the thyristor 11 is installed on the placement seat 9 along with the fixing frame 10, and then fixed to the placement seat 9 by pushing the screw 15 and the clamping plate 14, so as to facilitate the installation of the thyristor 11 into the placement frame 3, and the conductive frame 7 is inserted into the placement frame 3. In this process, the placement frame 3 will form an external extrusion, causing the cover plate 1 8 to move downward, and the conductive block 1 12 to contact the top of the thyristor 11, and the connection between the thyristor 11 and the outside is completed with the cooperation of the conductive block 2 13, which is convenient for subsequent detection, and then the entire placement frame 3 is pushed into the insulating frame 2 to make the connection between the thyristor 11 and the blocking tester body 1 for detection; During the detection process, when the thyristor high-voltage breakdown occurs, the electric adjustment rod 20 can be started to push the adjustment frame 19 to rotate, thereby loosening the restriction on the impact rod 17, and then under the action of the impact spring 18, the impact rod 17 is pushed to impact the thyristor 11, instantly pushing it out of the placement seat 9 and into the fixed seat 21, and the thyristor 11 is buffered by the buffer baffle 22 and the buffer spring 23. When the buffer baffle 22 is impacted, the pull rope 26 will be pulled to drive the limit block 25 to disengage from the blocking plate 24. Under the action of the pushing spring, the blocking plate 24 blocks the storage groove to prevent the thyristor 11 from returning to the placement seat 9 again. In this way, when the thyristor 11 has a high-voltage breakdown, it can quickly detach from the detection, thereby improving the protection of the thyristor 11 and also ensuring the test safety of the blocking tester body 1.

[0025] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A portable high-voltage thyristor online blocking tester, comprising: A blocking tester body (1), characterized in that a placement frame (3) is provided on the blocking tester body (1) for placing a thyristor (11), and an insulating frame (2) is provided on the periphery of the placement frame (3) for wrapping the placement frame (3) and forming a barrier between the placement frame (3) and the blocking tester body (1); A detection portion (4), an elastic portion (5) and a storage portion (6) are arranged in the placement frame (3); the detection portion (4) is arranged between the elastic portion (5) and the storage portion (6); the detection portion (4) is used to detect the thyristor (11); and the elastic portion (5) is used to push the thyristor (11) out of the detection portion (4) and into the storage portion (6) when a high voltage breakdown occurs in the thyristor (11), thereby reducing the danger during the measurement of the thyristor (11).

2. A portable high-voltage thyristor online blocking tester according to claim 1, characterized in that: The detection part (4) is composed of a conductive frame (7), a cover plate 1 (8), a placement seat (9) and a fixing frame (10). The conductive frame (7) is arranged in the placement frame (3), the cover plate 1 (8) is arranged on the conductive frame (7), the placement seat (9) is arranged between the conductive frame (7) and the cover plate 1 (8), the fixing frame (10) is arranged on the placement seat (9), the fixing frame (10) is used for preliminarily fixing the thyristor (11), the placement seat (9) is provided with a clamping assembly, the clamping assembly is used for limiting the fixing frame (10), the conductive frame (7) is provided with a conductive block 1 (12), the cover plate 1 (8) is provided with a conductive block 2 (13), the conductive block 1 (12) and the conductive block 2 (13) are respectively connected to the cathode and anode of the thyristor (11).

3. A portable high-voltage thyristor online blocking tester according to claim 2, characterized in that: The clamping assembly is composed of two clamping plates (14) and a pushing screw (15). The two clamping plates (14) are both arranged on a placement seat (9), one of which is in a fixed connection and the other is in a movably connected state. The pushing screw (15) is threadedly mounted on the placement seat (9), and one end of the pushing screw (15) is rotatably connected to the clamping plate (14) in a movably connected state.

4. A portable high-voltage thyristor online blocking tester according to claim 3, characterized in that: A sliding hole is provided on the conduction frame (7), a connecting rod is provided in the sliding hole, the top end of the connecting rod is connected to the cover plate 1 (8), a reset spring is provided in the sliding hole, the reset spring is connected to the connecting rod, an inclined surface is provided on the placement frame (3), and in the process of placing the detection part (4) in the placement frame (3), the cover plate 1 (8) is pressed by the inclined surface on the placement frame (3) to connect it to the conduction frame (7), and the conduction block 1 (12) and the conduction block 2 (13) are connected to the thyristor (11).

5. A portable high-voltage thyristor online blocking tester according to claim 4, characterized in that: The elastic part (5) is composed of a fixed seat (16), an impact rod (17), an impact spring (18), an adjustment frame (19) and an electric adjustment rod (20). The fixed seat (16) is arranged in the placement frame (3). The impact rod (17) is slidably mounted on the fixed seat (16). The impact spring (18) is mounted on the fixed seat (16). One end of the impact spring (18) is connected to the impact rod (17). The impact spring (18) can provide an impact force for the impact rod (17). , so that the impact rod (17) provides an impact to the fixed frame (10), driving the thyristor (11) to leave the detection part (4) and enter the storage part (6); the adjustment frame (19) is arranged on the fixed seat (16) and is used to limit the impact rod (17) so that the impact spring (18) is in a squeezed state; the electric adjustment rod (20) is installed on the fixed seat (16); the telescopic shaft of the electric adjustment rod (20) is connected to the adjustment frame (19) and is used to adjust the angle of the adjustment frame (19).

6. A portable high-voltage thyristor online blocking tester according to claim 5, characterized in that: The storage portion (6) is composed of a second fixing seat (21), a second cover plate (27), a buffer baffle (22) and a buffer spring (23). The second fixing seat (21) is arranged in the placement frame (3). The second fixing seat (21) is provided with a storage groove for storing the thyristor (11). The second cover plate (27) is arranged on the second fixing seat (21). The buffer baffle (22) is slidably installed in the storage groove. The buffer spring (23) is installed on the second fixing seat (21). One end of the buffer spring (23) is connected to the buffer baffle (22).

7. A portable high-voltage thyristor online blocking tester according to claim 6, characterized in that: A blocking plate (24) is slidably mounted on the second fixing seat (21). A push spring is provided on the second fixing seat (21). The push spring is connected to the blocking plate (24) and is used to push the blocking plate (24) to move and block the storage slot. A limit block (25) is slidably mounted on the second fixing seat (21). The limit block (25) is used to limit the blocking plate (24). A pull rope (26) is provided on the second fixing seat (21). One end of the pull rope (26) is connected to the limit block (25), and the other end of the pull rope (26) is connected to the buffer baffle (22). When the buffer baffle (22) is impacted by the thyristor (11) and moves, the limit block (25) is driven by the pull rope (26) to move and release the limit on the blocking plate (24). Under the action of the push spring, the blocking plate (24) is pushed to block the storage slot, thereby completing the wrapping of the thyristor (11).

8. A portable high-voltage thyristor online blocking tester according to claim 7, characterized in that: A heat conducting plate (28) is arranged on the second cover plate (27). The heat conducting plate (28) is made of a copper sheet. The heat conducting plate (28) is arranged tilted. The side of the heat conducting plate (28) facing the detection part (4) is arranged in an arc shape. After the thyristor (11) enters the storage groove, the heat conducting plate (28) is used to limit the thyristor (11) to prevent the thyristor (11) from rebounding after contacting the buffer baffle (22) and continuing to collide with the blocking plate (24), thereby reducing collision damage to the thyristor (11). A temperature sensor is arranged on the second cover plate (27). The temperature sensor is connected to the heat conducting plate (28). A display screen is arranged on the temperature sensor. The temperature of the thyristor (11) is measured through the heat conducting plate (28). The temperature on the heat conducting plate (28) is measured through the temperature sensor to understand the temperature of the thyristor (11) after leaving the detection part (4).

9. A portable high-voltage thyristor online blocking tester according to claim 8, characterized in that: A clamping groove is provided on the insulating frame (2), a connecting block (29) is installed on the placement frame (3), a pull frame (30) is slidably installed on the connecting block (29), a clamping block (31) is installed on the pull frame (30), the bottom of the clamping block (31) extends into the clamping groove and fits with the clamping groove, a reinforcing spring (32) is sleeved on the pull frame (30), one end of the reinforcing spring (32) is connected to the connecting block (29), and the other end of the reinforcing spring (32) is connected to the clamping block (31).

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