Power capacitor detection device

Abstract

The invention discloses a power capacitor detection device, and relates to the field of power capacitors, the power capacitor detection device comprises a base, a supporting plate is fixed in the middle of the upper end of the base, an adjusting assembly is arranged at the upper end of the base and located on one side of the supporting plate, and torsional stress detection is performed on a power capacitor through the adjusting assembly; according to the power capacitor detection device, when the movable block rotates, the guide block arranged at the end of the movable block is synchronously driven to move, and the outer surface of the guide block is in sliding connection with the interior of the guide groove, so that when the guide block moves, the guide block is matched with the power block to drive the second connecting rod to move; wherein the end part of the second connecting rod is fixedly provided with an extrusion plate, and the cross section of the extrusion plate is L-shaped, so that the capacitor is further pressed and tested.

Description

Technical Field

[0001] The invention relates to power capacitor technology, and in particular to a power capacitor detection device. Background Art

[0002] Power capacitors are capacitors used in power systems and electrical equipment; any two metal conductors separated by an insulating medium constitute a capacitor; the size of the capacitor's capacitance is determined by its geometric dimensions and the characteristics of the insulating medium between the two plates; when the capacitor is used under AC voltage, its capacity is often expressed in terms of its reactive power, in units of var or kilovar. It is widely used in power compensation equipment in power systems. Before installing and using the capacitor, it is necessary to conduct multiple inspections on the capacitor, including inspection of its appearance, which requires inspection by an appearance inspection device.

[0003] A Chinese invention patent with publication number CN113588552A discloses a power capacitor detection device, which can automatically move the power capacitor placed on the upper side of a movable plate into a detection chamber. The magnet will automatically drive the movable plate to rotate, so that the power capacitor can be placed straight, and the detection plate will contact the surface of the power capacitor. At this time, the detection plate moves downward. When a bulge is detected, the pressure detector will change, thereby detecting the bulge of the power capacitor, and the electromagnet changes direction, thereby driving the movable plate to rotate another ninety degrees, thereby detecting whether the other two end surfaces of the power capacitor are bulging, reducing human detection and thus improving efficiency and accuracy.

[0004] When existing equipment is in use, the capacitor may be stretched or compressed due to the installation position, external environment or internal pressure, leaving the capacitor with potential failures; at the same time, in some application scenarios, the capacitor may be subjected to torsional force, resulting in damage, so an electric capacitor detection device has been developed. Summary of the invention

[0005] The purpose of the present invention is to provide a power capacitor detection device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: a power capacitor detection device, comprising a base, a support plate is fixed at the middle position of the upper end of the base, and an adjustment component is arranged at the upper end of the base and on one side of the support plate, and the torsional stress detection of the power capacitor is performed by the adjustment component; A detection component is assembled on the upper end of the base, and the detection components are distributed on both sides of the support plate, and the mechanical stress test of the power capacitor is performed through the detection component; Wherein, the detection assembly comprises a fixing plate slidably connected to the base, a positioning block is fixedly installed on the inner wall of the fixing plate, a power piece is fixedly installed on the end of the positioning block, the output end of the power piece penetrates and extends into the interior of the positioning block, and a rotating drum is fixedly installed on the output end of the power piece, a first arc groove is provided on the outer surface of the rotating drum, and a second arc groove is provided on the outer surface of the rotating drum and located on one side of the first arc groove; A fixed shaft is rotatably mounted on the lower end of the positioning block, a connecting block is fixedly mounted on one end of the fixed shaft, and an outer surface of an end of the connecting block is slidably connected to an inner wall of the second arc-shaped groove; A movable block is fixedly installed at one end of the fixed shaft away from the connecting block, and a push rod is rotatably installed at one end of the movable block, a support plate is rotatably installed at the end of the push rod, and a first connecting rod is fixedly installed at the end of the support plate, a protective block is slidably installed on the outer surface of the first connecting rod, the end of the protective block is slidably connected to one side of the fixed plate, and a pressing plate is provided at the end of the first connecting rod; A guide block is rotatably mounted on one end of the movable block away from the push rod, and a power block is movably mounted on the upper end of the fixed plate. A guide groove is provided on the side of the power block close to the guide block, and the inner wall of the guide groove is slidably connected to the outer surface of the guide block. A second connecting rod is fixedly mounted on the end of the power block, and an extrusion plate is fixedly mounted on the end of the second connecting rod; An adjusting block is fixedly mounted on the outer surface of the second connecting rod, a docking block is fixedly mounted on the end of the adjusting block, and the outer surface of the end of the docking block is slidably connected to the inner wall of the first arc-shaped groove.

[0007] As a further optimization solution of the present invention, the adjustment assembly includes a bottom plate connected to the base, a driving member is fixedly mounted on the end of the bottom plate, and a turntable is fixedly mounted on the output end of the driving member.

[0008] As a further optimization solution of the present invention, a limit rod is provided at the upper end of the base, and the end of the limit rod is rotatably connected to the outer surface of the output end of the driving member.

[0009] As a further optimization solution of the present invention, a driving block is slidably mounted at the end of the turntable away from the center, and a sliding rod is slidably mounted at one end of the driving block away from the turntable.

[0010] As a further optimization solution of the present invention, swing rods are fixedly installed at both ends of the slide rod, and the sliding connection between the driving block and the slide rod is cylindrical.

[0011] As a further optimization solution of the present invention, a threaded block is fixedly installed on the end of the swing rod, and a movable rod is slidably installed on the inner wall of the swing rod.

[0012] As a further optimization solution of the present invention, a thread groove is provided on the outer surface of the movable rod, and the inner wall of the thread groove is slidably connected to the outer surface of the thread block.

[0013] As a further optimization solution of the present invention, a positioning rod is fixedly installed at one end of the limiting rod away from the driving member, and the inner wall of the end of the positioning rod is slidably connected to the outer surface of the movable rod.

[0014] As a further optimization solution of the present invention, a sliding block is fixedly installed on the end of the movable rod, and a limiting block is slidably installed on the outer surface of the sliding block.

[0015] As a further optimization solution of the present invention, a driving gear is fixedly mounted on one end of the movable rod away from the sliding block, and the outer surface of the driving gear is connected to the end of the fixed plate through a transmission belt.

[0016] Compared with the prior art, the present invention provides an electric capacitor detection device, which has the following beneficial effects: when the movable block rotates, the guide block arranged at its end is synchronously driven to move, and since the outer surface of the guide block is slidingly connected with the inside of the guide groove, the guide block cooperates with the power block to drive the second connecting rod to move when it moves, wherein an extrusion plate is fixedly installed at the end of the second connecting rod, and the cross-section of the extrusion plate is L-shaped, which further performs a press test on the capacitor, thereby reducing potential faults.

[0017] The driving gear and the movable rod are connected by a clamp or other fixing parts, and gears of different sizes can be replaced according to the actual situation to make it suitable for different scenes. The transmission gear fixed on the fixed plate is driven to rotate in conjunction with the transmission, so that the fixed plate rotates as a whole to perform a torsional force test on the capacitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of an adjustment component provided in an embodiment of the present invention; Figure 3 A first cross-sectional view of the internal structure of the adjustment component provided by an embodiment of the present invention; Figure 4A second cross-sectional view of the internal structure of the adjustment assembly provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of a detection component provided in an embodiment of the present invention; Figure 6 A first cross-sectional view of the internal structure of a detection component provided by an embodiment of the present invention; Figure 7 A second cross-sectional view of the internal structure of the detection component provided by an embodiment of the present invention; Figure 8 This is a third cross-sectional view of the internal structure of the detection component provided in an embodiment of the present invention.

[0020] Description of reference numerals: 1. Base; 2. Adjustment assembly; 3. Detection assembly; 11. Support plate; 21. Bottom plate; 22. Driving member; 23. Limit rod; 231. Positioning rod; 24. Turntable; 241. Driving block; 25. Sliding rod; 251. Swinging rod; 252. Threaded block; 26. Limit block; 261. Slot hole; 27. Sliding block; 28. Movable rod; 281. Threaded groove; 29. ​​Driving gear; 31. Fixing plate; 32. Positioning block; 3 3. Power part; 34. Rotating drum; 341. First arc groove; 342. Second arc groove; 35. Fixed shaft; 351. Connecting block; 36. Movable block; 361. Push rod; 362. Guide block; 37. Support plate; 371. Protective block; 372. First connecting rod; 373. Pressing plate; 38. Power block; 381. Guide groove; 382. Second connecting rod; 383. Extrusion plate; 39. Adjusting block; 391. Docking block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example: See Figure 1-Figure 8 A power capacitor detection device includes a base 1, a support plate 11 is fixed at the middle position of the upper end of the base 1, and an adjustment component 2 is arranged at the upper end of the base 1 and on one side of the support plate 11, and the torsional stress detection of the power capacitor is performed through the adjustment component 2.

[0024] In this solution, a device with a telescopic function, such as an electric telescopic rod, is fixedly installed at the lower end of the support plate 11 and is connected to an external control device. At the same time, the height of the capacitor can be adjusted in conjunction with the support plate 11 to make it suitable for different scenarios. A device with a vibration function can also be set at the lower end of the support plate 11 to simulate the state of the capacitor in the vibration mode.

[0025] Furthermore, a detection component 3 is assembled on the upper end of the base 1, and the detection component 3 is distributed on both sides of the support plate 11, and a mechanical stress test is performed on the power capacitor through the detection component 3; wherein, the detection component 3 includes a fixed plate 31 slidably connected to the base 1, a positioning block 32 is fixedly installed on the inner wall of the fixed plate 31, a power member 33 is fixedly installed on the end of the positioning block 32, an output end of the power member 33 passes through and extends to the interior of the positioning block 32, and a rotating cylinder 34 is fixedly installed on the output end of the power member 33, a first arc groove 341 is opened on the outer surface of the rotating cylinder 34, and a second arc groove 342 is opened on the outer surface of the rotating cylinder 34 and located on one side of the first arc groove 341.

[0026] For illustration, the first arc groove 341 is designed to be inclined, and the second arc groove 342 is composed of two semi-arc grooves. The two semi-arc grooves are staggered on the outer surface of the rotating drum 34, and the opposite ends thereof are connected through an arc-shaped inclined groove.

[0027] In this embodiment, the power member 33 is a device with power output such as a motor, and is connected to an external control device. When the power member 33 is started, it synchronously drives the rotating drum 34 arranged at its output end to rotate. Since the outer surface of the rotating drum 34 is sequentially provided with a first arc groove 341 and a second arc groove 342, when the rotating drum 34 rotates, the first arc groove 341 and the second arc groove 342 are driven to rotate synchronously.

[0028] Furthermore, a fixed shaft 35 is rotatably mounted on the lower end of the positioning block 32 , a connecting block 351 is fixedly mounted on one end of the fixed shaft 35 , and an outer surface of an end of the connecting block 351 is slidably connected to an inner wall of the second arc groove 342 .

[0029] Specifically, since the connecting block 351 is fixedly mounted on the fixed shaft 35 , when the rotating drum 34 rotates, the connecting block 351 is driven to rotate in cooperation with the second arc groove 342 , thereby driving the fixed shaft 35 to rotate.

[0030] Furthermore, a movable block 36 is fixedly installed at one end of the fixed shaft 35 away from the connecting block 351, the end of the fixed shaft 35 is connected to the center of the movable block 36, and a push rod 361 is rotatably installed at one end of the movable block 36, a support plate 37 is rotatably installed at the end of the push rod 361, and a first connecting rod 372 is fixedly installed at the end of the support plate 37, a protective block 371 is slidably installed on the outer surface of the first connecting rod 372, the end of the protective block 371 is slidably connected to one side of the fixed plate 31, and a pressing plate 373 is fixedly provided at the end of the first connecting rod 372.

[0031] Specifically, when the fixed shaft 35 rotates, the movable block 36 arranged at the end of the fixed shaft 35 is synchronously driven to rotate. Since the end of the movable block 36 is rotatably installed with a push rod 361, the push rod 361 is driven to move. At the same time, when the push rod 361 moves, the support plate 37 arranged at the end of the push rod 361 is driven to move, wherein the end of the support plate 37 cooperates with the first connecting rod 372 to drive the pressing plate 373 to move, so that when the support plate 37 moves, it cooperates with the pressing plate 373 to perform an extrusion test on the capacitor.

[0032] The first connecting rod 372 is limited by the protective block 371 so that the first connecting rod 372 remains stable as a whole when moving. At the same time, the end of the protective block 371 is slidably installed on the inner wall of the fixed plate 31 to prevent the first connecting rod 372 from being disturbed when moving.

[0033] Furthermore, a guide block 362 is rotatably installed at one end of the movable block 36 away from the push rod 361, and a power block 38 is movably installed at the upper end of the fixed plate 31. A guide groove 381 is provided on the side of the power block 38 close to the guide block 362. The inner wall of the guide groove 381 is slidably connected to the outer surface of the guide block 362. A second connecting rod 382 is fixedly installed at the end of the power block 38, and an extrusion plate 383 is fixedly installed at the end of the second connecting rod 382.

[0034] Specifically, when the movable block 36 rotates, the guide block 362 arranged at its end is synchronously driven to move. Since the outer surface of the guide block 362 is slidably connected with the inside of the guide groove 381, the guide block 362 cooperates with the power block 38 to drive the second connecting rod 382 to move when it moves, wherein an extrusion plate 383 is fixedly installed at the end of the second connecting rod 382, ​​and the cross-section of the extrusion plate 383 is L-shaped, so as to further perform a press test on the capacitor.

[0035] Furthermore, an adjustment block 39 is fixedly mounted on the outer surface of the second connecting rod 382 , a docking block 391 is fixedly mounted on the end of the adjustment block 39 , and the outer surface of the end of the docking block 391 is slidably connected to the inner wall of the first arc-shaped groove 341 .

[0036] Specifically, when the drum 34 rotates, the first arc groove 341 drives the docking block 391 to move. Since the docking block 391 is connected to the adjustment block 39, when the docking block 391 moves, the second connecting rod 382 is synchronously driven to move, thereby performing an extrusion test on the side of the capacitor.

[0037] At the same time, one side of the adjusting block 39 is slidably connected to the side of the fixing plate 31 , so that the adjusting block 39 remains stable as a whole when it moves.

[0038] Furthermore, the adjustment assembly 2 includes a bottom plate 21 fixedly connected to the base 1, a driving member 22 is fixedly installed at the end of the bottom plate 21, and a turntable 24 is fixedly installed at the output end of the driving member 22. A limit rod 23 is fixedly provided at the upper end of the base 1, and the end of the limit rod 23 is rotatably connected to the outer surface of the output end of the driving member 22. A driving block 241 is slidably installed through the end of the turntable 24 and away from the center, and a slide bar 25 is slidably installed at the end of the driving block 241 away from the turntable 24. Swing rods 251 are fixedly installed at both ends of the slide bar 25, and the sliding connection between the driving block 241 and the slide bar 25 is cylindrical.

[0039] For illustration, a limiting sleeve is fixedly disposed between the opposite ends of the two limiting rods 23, and the output end of the driving member 22 passes through the limiting sleeve and is rotatably disposed with the inner surface thereof.

[0040] In this embodiment, the driving member 22 is a device with power output such as a motor, and is connected to an external control device. When the driving member 22 is started, it synchronously drives the turntable 24 arranged at its output end to rotate, wherein the turntable 24 is supported by the limit rod 23, so that the turntable 24 remains stable as a whole when rotating.

[0041] At the same time, when the turntable 24 rotates, the driving block 241 arranged at its end is synchronously driven to rotate around the center of the turntable 24, and the outer surface of the driving block 241 is slidably connected to the inner wall of the hole on the turntable 24, thereby ensuring that it will not be disturbed during rotation.

[0042] When the driving block 241 rotates, the sliding rod 25 slidably mounted on the inner wall thereof is driven to move, and cooperate with the swing rod 251 to reciprocate.

[0043] Furthermore, a threaded block 252 is fixedly installed at the end of the swing rod 251, and a movable rod 28 is slidably installed on the inner wall of the swing rod 251. The outer surface of the movable rod 28 is provided with a threaded groove 281, and the inner wall of the threaded groove 281 is slidably connected to the outer surface of the threaded block 252.

[0044] Specifically, since the inner wall of the end of the swing rod 251 is provided with the movable rod 28, and the inner wall of the thread groove 281 on the movable rod 28 is in contact with the outer surface of the thread block 252, when the swing rod 251 moves, the movable rod 28 is driven to reciprocate.

[0045] The thread grooves 281 of the two movable rods 28 are in opposite directions, so when the movable rods 28 rotate, the two movable rods 28 rotate in opposite directions to each other and twist the capacitor.

[0046] Furthermore, a positioning rod 231 is fixedly mounted on one end of the limiting rod 23 away from the driving member 22 , and an inner wall of the end of the positioning rod 231 is slidably connected to the outer surface of the movable rod 28 .

[0047] Specifically, the movable rod 28 is limited by the positioning rod 231 to ensure that the movable rod 28 does not fall off when rotating.

[0048] Furthermore, a slider 27 is fixedly mounted on the end of the movable rod 28 , and a limit block 26 is slidably mounted on the outer surface of the slider 27 .

[0049] Specifically, a slot hole 261 is formed at the end of the limit block 26 , and the inner wall of the slot hole 261 is slidably connected to the outer surface of the slider 27 , thereby ensuring that the movable rod 28 remains stable as a whole when rotating.

[0050] Furthermore, a driving gear 29 is fixedly mounted on one end of the movable rod 28 away from the slider 27 , and an outer surface of the driving gear 29 is connected to an end of the fixed plate 31 via a transmission belt.

[0051] Specifically, the driving gear 29 and the movable rod 28 are connected by a fixing component such as a clamp, and gears of different sizes can be replaced according to actual conditions to make it suitable for different scenarios. The transmission gear 29 is driven to rotate by the transmission gear fixed on the fixed plate 31, so that the fixed plate 31 rotates as a whole to perform a torsional force test on the capacitor.

[0052] A rectangular groove is provided at the end of the driving gear 29, and the end of the movable rod 28 is rectangular. The outer surface of the end of the movable rod 28 is slidingly connected to the inner wall of the driving gear 29, so that when the movable rod 28 drives the driving gear 29 to rotate, the driving gear 29 always remains stable.

[0053] A support column is slidably mounted on the lower end of the fixed plate 31, and the upper end of the support column is arc-shaped, so that the fixed plate 31 remains stable when rotating. At the same time, the lower end of the support column is slidably connected to the upper end of the fixed plate 31 and fixed by screws and other fixing components, so that it is suitable for testing capacitors of different sizes.

[0054] The control device can select a single-chip microcomputer as the control end. In this embodiment, the single-chip microcomputer is a typical embedded microcontroller (Micro controller unit), which is composed of an arithmetic unit, a controller, a memory, an input and output device, etc., which is equivalent to a microcomputer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes self-supply (no external hardware) and cost saving. Its biggest advantage is that it is small in size and can be placed inside the instrument, but it has a small storage capacity, a simple input and output interface, and low functional consumption.

[0055] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A power capacitor detection device, characterized in that: It comprises a base (1), a support plate (11) is fixed at the middle position of the upper end of the base (1), and an adjustment component (2) is arranged at the upper end of the base (1) and on one side of the support plate (11), and the torsional stress detection of the power capacitor is performed by the adjustment component (2); A detection component (3) is mounted on the upper end of the base (1), and the detection component (3) is distributed on both sides of the support plate (11), and a mechanical stress test is performed on the power capacitor through the detection component (3); The detection assembly (3) comprises a fixing plate (31) slidably connected to the base (1); a positioning block (32) is fixedly mounted on the inner wall of the fixing plate (31); a power member (33) is fixedly mounted on the end of the positioning block (32); an output end of the power member (33) penetrates and extends into the interior of the positioning block (32); and a rotating drum (34) is fixedly mounted on the output end of the power member (33); a first arc-shaped groove (341) is formed on the outer surface of the rotating drum (34); and a second arc-shaped groove (342) is formed on the outer surface of the rotating drum (34) and located on one side of the first arc-shaped groove (341); A fixed shaft (35) is rotatably mounted on the lower end of the positioning block (32); a connecting block (351) is fixedly mounted on one end of the fixed shaft (35); and an outer surface of an end of the connecting block (351) is slidably connected to an inner wall of the second arc-shaped groove (342); A movable block (36) is fixedly mounted on one end of the fixed shaft (35) away from the connecting block (351), and a push rod (361) is rotatably mounted on one end of the movable block (36), a support plate (37) is rotatably mounted on the end of the push rod (361), and a first connecting rod (372) is fixedly mounted on the end of the support plate (37), a protective block (371) is slidably mounted on the outer surface of the first connecting rod (372), an end of the protective block (371) is slidably connected to one side of the fixed plate (31), and a pressing plate (373) is provided at the end of the first connecting rod (372); A guide block (362) is rotatably mounted on one end of the movable block (36) away from the push rod (361), and a power block (38) is movably mounted on the upper end of the fixed plate (31); a guide groove (381) is provided on a side of the power block (38) close to the guide block (362); an inner wall of the guide groove (381) is slidably connected to an outer surface of the guide block (362); a second connecting rod (382) is fixedly mounted on the end of the power block (38); and an extrusion plate (383) is fixedly mounted on the end of the second connecting rod (382); An adjustment block (39) is fixedly mounted on the outer surface of the second connecting rod (382), a docking block (391) is fixedly mounted on the end of the adjustment block (39), and the outer surface of the end of the docking block (391) is slidably connected to the inner wall of the first arc-shaped groove (341).

2. A power capacitor detection device according to claim 1, characterized in that: The adjustment assembly (2) comprises a bottom plate (21) connected to the base (1), a driving member (22) is fixedly mounted on the end of the bottom plate (21), and a rotating disk (24) is fixedly mounted on the output end of the driving member (22).

3. A power capacitor detection device according to claim 2, characterized in that: A limiting rod (23) is provided at the upper end of the base (1), and an end of the limiting rod (23) is rotatably connected to the outer surface of the output end of the driving member (22).

4. A power capacitor detection device according to claim 3, characterized in that: A driving block (241) is slidably mounted at an end of the rotating disk (24) and away from the center, and a sliding rod (25) is slidably mounted at one end of the driving block (241) away from the rotating disk (24).

5. A power capacitor detection device according to claim 4, characterized in that: Swing rods (251) are fixedly mounted on both ends of the slide rod (25), and the sliding connection between the drive block (241) and the slide rod (25) is cylindrical.

6. A power capacitor detection device according to claim 5, characterized in that: A threaded block (252) is fixedly mounted on the end of the swing rod (251), and a movable rod (28) is slidably mounted on the inner wall of the swing rod (251).

7. A power capacitor detection device according to claim 6, characterized in that: The outer surface of the movable rod (28) is provided with a thread groove (281), and the inner wall of the thread groove (281) is slidably connected to the outer surface of the thread block (252).

8. A power capacitor detection device according to claim 7, characterized in that: A positioning rod (231) is fixedly mounted on one end of the limiting rod (23) away from the driving member (22), and the inner wall of the end of the positioning rod (231) is slidably connected to the outer surface of the movable rod (28).

9. A power capacitor detection device according to claim 8, characterized in that: A sliding block (27) is fixedly mounted on the end of the movable rod (28), and a limiting block (26) is slidably mounted on the outer surface of the sliding block (27).

10. A power capacitor detection device according to claim 9, characterized in that: A driving gear (29) is fixedly mounted on one end of the movable rod (28) away from the sliding block (27), and an outer surface of the driving gear (29) is connected to the end of the fixed plate (31) via a transmission belt.

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