Lightning arrester multi-station detection platform for online detection

Abstract

The invention discloses an online detection lightning arrester multi-station detection platform, and belongs to the technical field of lightning arrester detection devices.The online detection lightning arrester multi-station detection platform comprises a rubber stretching detection mechanism, the rubber stretching detection mechanism comprises a box body with a notch, and one end of the box body is fixedly provided with a driving motor; one end of an output shaft of the driving motor extends to a first lead screw in the box body, the output shaft of the driving motor is in transmission connection with a movable shaft fixed to a second lead screw through a conveying belt, and first sliding blocks moving in the opposite directions are spirally arranged at the two ends of the first lead screw and the two ends of the second lead screw in a transmission mode. The first sliding blocks are connected through a first swing rod. The technical problems that for different lightning arresters, the clamping distance between rubber skirt sleeves can be correspondingly increased or decreased, but an existing clamping mechanism is relatively fixed in design and cannot be effectively adjusted at equal intervals, so that normal detection work is affected, and the working efficiency is reduced can be solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of lightning arrester detection devices, and particularly relates to an online lightning arrester multi-station detection platform. BACKGROUND

[0002] Lightning arrester: a kind of electrical appliance for protecting electrical equipment from lightning high transient overvoltage hazards and limiting the current time, and also limiting the current amplitude. Lightning arrester is also called overvoltage protector and overvoltage limiter. Lightning arrester is divided into many types, such as metal oxide lightning arrester, line type metal oxide lightning arrester, non-gap line type metal oxide lightning arrester, fully insulated composite outer sleeve metal oxide lightning arrester, and detachable lightning arrester.

[0003] Lightning arrester is connected between cable and ground, and is usually connected in parallel with the protected equipment. Lightning arrester can effectively protect communication equipment. Once abnormal voltage occurs, lightning arrester will act to play a protective role. When the communication cable or equipment operates under normal working voltage, lightning arrester will not produce effect, and is regarded as open circuit to the ground. Once high voltage occurs and endangers the insulation of the protected equipment, lightning arrester will immediately act to guide the high voltage impact current to the ground, thereby limiting the voltage amplitude and protecting the insulation of the communication cable and equipment. When the overvoltage disappears, lightning arrester quickly returns to normal, so that the communication line can work normally.

[0004] When lightning arrester is detected, various performance detections need to be performed to determine whether the lightning arrester is a qualified product. Tensile performance detection is performed by pulling the detection device with pressure to perform tensile performance detection. When the rubber skirt of the lightning arrester is clamped and fixed, because the sizes of lightning arresters are not uniform, the clamping distance between the rubber skirts of different lightning arresters will be correspondingly expanded or reduced. However, the existing clamping mechanism is designed to be fixed, and cannot be effectively adjusted at equal distances, thereby affecting the normal performance of the detection work. The stretching test needs to be performed by one-by-one clamping and limiting, which reduces the work efficiency and is not conducive to the improvement of the application of the device. SUMMARY

[0005] The application aims to provide an online lightning arrester multi-station detection platform to solve the technical problem that the clamping distance between the rubber skirts of different lightning arresters will be correspondingly expanded or reduced, the existing clamping mechanism is designed to be fixed, and cannot be effectively adjusted at equal distances, thereby affecting the normal performance of the detection work and reducing the work efficiency.

[0006] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme: An online lightning arrester multi-station detection platform comprises: The rubber stretching detection mechanism comprises a notched box body, a driving motor is fixedly installed at one end of the box body, a first lead screw is extended to the inside of the box body at one end of the output shaft of the driving motor, the output shaft of the driving motor and the movable shaft fixed on the second lead screw are drivingly connected through a conveying belt, and the first lead screw and the second lead screw are both screw-driven with reversely moving first sliders at both ends; The first sliders are connected through a first swing rod, the first swing rod is polygonally arranged and is installed on the first sliders in a rotary connection mode, a rotating shaft matched with the first swing rod is arranged at the node of the first swing rod, the rotating shaft is installed on the second slider at the bottom end, the second slider is arranged in a U shape and is connected with a sliding groove along the length direction of the upper beam of the box body, pusher cylinders are fixedly installed on both sides of the bottom end of the second slider through limiting blocks, and the piston rod of the pusher cylinder is extended to a clamping assembly through the second slider at one end.

[0007] Further, the clamping assembly comprises a moving frame fixed on the piston rod of the pusher cylinder, a clamping cylinder is fixedly installed on the top of the moving frame, the piston rod of the clamping cylinder is extended to a push block at one end, a first inclined surface is arranged at one end of the push block, the first inclined surface is in contact with a clamping block, the clamping block is connected to the moving frame through a first spring at the center position, and telescopic rods are arranged between the moving frame and the clamping block at both sides of the first spring.

[0008] Further, a clamping cavity is formed between the moving frame and the clamping block, and a second inclined surface parallel to the first inclined surface is arranged on the clamping block.

[0009] Further, the first slider and the third slider on the fixed plate are connected through a second swing rod, a strip-shaped groove connected with the fixed plate is arranged on the third slider, and the third slider is symmetrically arranged with respect to the center of the box body, a cleaning brush is connected to the extension end of the third slider through a T-shaped rod, and the bristles of the cleaning brush are in contact with the upper beam and the piston rod of the pusher cylinder.

[0010] Further, the second swing rod is rotatably connected to the first slider and the third slider at both ends, and the fixed plate is connected to the box body through plug-in installation.

[0011] Further, it also comprises a sealing detection mechanism, the sealing detection mechanism comprises a fixed rod fixed at one end of the first slider, a check ring is arranged on the inner wall of a conduit at one end of the fixed rod, and the conduit is fixed on a water tank on the bottom plate at one end.

[0012] Further, the sealing ring between the baffle ring and the inner wall of the guide pipe is connected by a second spring, an oblique opening is arranged on the outer wall edge of the sealing ring close to the second spring, an abutting groove is arranged on the outer wall of the oblique opening, and the outer wall of the sealing ring is penetrated by a central shaft and extends to a movable plate through an annular plate, a circular hole is arranged on the annular plate, and a shielding block corresponding to the circular hole is arranged on the movable plate.

[0013] Further, the annular plate is connected to the inner wall of the guide pipe by positioning pin locking, a multi-way pipe is arranged between the baffle ring and the sealing ring and placed on the inner wall of the guide pipe, and a water outlet is arranged on the multi-way pipe and placed in the slot of the box body.

[0014] As described above, the present application has the following advantages: (1) The rubber stretching detection mechanism is arranged, the spacing of the clamping assembly can be adjusted, the rubber skirt on the lightning arrester at different positions can be clamped and fixed correspondingly, thereby facilitating the subsequent stretching detection work, after the driving motor is started, the first lead screw and the second lead screw can be driven to rotate synchronously, under the action of the screw transmission, the first sliding block moves reversely, and under the rotating connection action of the first swing rod, the second sliding block at the opposite diagonal positions of the four sides can also move synchronously on the multiple-point clamping assembly of the cross beam, thereby the spacing between the clamping assemblies can be adaptively adjusted and correspond to the rubber skirt, the cross beam on the box body can ensure that the clamping assembly does not deviate during movement, the accuracy of the transmission member during movement is ensured, the slot on the box body provides a corresponding support space for the placement of the lightning arrester, and also facilitates the subsequent water discharge process, thereby providing a corresponding water discharge space for the sealing detection test of the lightning arrester, and the subsequent sealing detection work can be effectively carried out.

[0015] (2) The cleaning mechanism is arranged, during the movement of the first sliding blocks at both ends, under the rotating connection action of the second swing rod, the X-axis force in the horizontal direction of the first sliding block can be converted into the Y-axis force in the horizontal direction of the third sliding block, and the third sliding block drives the cleaning brush on the T-shaped rod to move reversely in the Y-axis direction, during the movement of the cleaning brush, the second sliding block also moves on the cross beam, so that the cleaning brush can clean the cross beam comprehensively, thereby preventing the accumulation of particulate matter on the cross beam and ensuring the cleanliness of the cross beam, during the movement of the second sliding block, the connection between the second sliding block and the cross beam can be opened, thereby preventing the phenomenon of poor cleaning of the cleaning brush, and during the movement of the cleaning brush, the piston rod of the push cylinder can also be cleaned, thereby ensuring the normal pushing work of the push cylinder.

[0016] (3) The clamping assembly is arranged, the vertical arrangement of the clamping cylinder can avoid affecting the normal clamping work of the clamping assembly, the space is reasonably utilized, the first inclined surface on the pushing block is driven to move downward in the downward pushing process of the clamping cylinder, the first inclined surface is in abutment with the second inclined surface on the clamping block, the clamping block is horizontally moved and the rubber skirt is effectively clamped by the cooperation of the first spring and the telescopic rod, the movement is stable, and the clamping effect is good.

[0017] (4) The sealing detection mechanism is arranged, the first sliding block can drive the movement of the blocking ring through the fixed rod in the moving process, the abutting groove on the sealing ring can be opened under the mechanical transmission, so that the water in the water tank enters the groove, and the blocking block on the front end movable plate can be synchronously moved in the moving process of the sealing ring, and then the circular hole on the annular plate can be opened, so that the water can be preliminarily shunted and adjusted, the friction damage of the transmission part caused by the too fast water flow is prevented, and the service life and reliability of the device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 is a structure diagram of a multi-station detection platform for on-line detection of a lightning arrester of the present application Figure 1 ; Figure 2 is a structure diagram of a multi-station detection platform for on-line detection of a lightning arrester of the present application Figure 2 ; Figure 3 is a top view of a multi-station detection platform for on-line detection of a lightning arrester of the present application Figure 4 is a right view of a multi-station detection platform for on-line detection of a lightning arrester of the present application Figure 5 is an enlarged view of A of the present application Figure 1 ; Figure 6 is a connection diagram of a second sliding block and a pushing cylinder of the present application Figure 7 is a diagram of a sealing detection mechanism of the present application Figure 8 is a connection diagram of an annular plate and a movable plate of the present application.

[0020] Label: 1, rubber stretching detection mechanism; 2, box body; 3, drive motor; 4, first lead screw; 5, second lead screw; 6, conveying belt; 7, first sliding block; 8, first swing rod; 9, second sliding block; 10, cross beam; 11, push cylinder; 12, clamping assembly; 13, moving frame; 14, clamping cylinder; 15, push block; 16, first inclined surface; 17, clamping block; 18, first spring; 19, telescopic rod; 20, second inclined surface; 21, fixed plate; 22, third sliding block; 23, second swing rod; 24, T-shaped rod; 25, cleaning brush; 26, sealing detection mechanism; 27, fixed rod; 28, guide pipe; 29, check ring; 30, water tank; 31, sealing ring; 32, second spring; 33, bevel; 34, abutting groove; 35, annular plate; 36, movable plate; 37, circular hole; 38, shielding block; 39, multi-way pipe; 40, water outlet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Reference is made to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 shown, an on-line detection lightning arrester multi-station detection platform, comprising: a rubber stretching detection mechanism 1, the rubber stretching detection mechanism 1 comprising a box body 2 with a notch, the box body 2 is fixedly installed with a drive motor 3 at one end, the output shaft of the drive motor 3 extends to a first lead screw 4 inside the box body 2 at one end, the output shaft of the drive motor 3 and the movable shaft fixed on the second lead screw 5 are drivingly connected through a conveying belt 6, and the first lead screw 4 and the second lead screw 5 are both screw-driven with reversely moving first sliding blocks 7 at both ends; The first sliding blocks 7 are connected through a first swing rod 8, the first swing rod 8 is polygonal and installed on the first sliding blocks 7 through a rotating connection, and the first swing rod 8 is provided with a rotating shaft matched therewith at the node, the rotating shaft is installed on the second sliding block 9 at the bottom end, the second sliding block 9 is U-shaped, and the second sliding block 9 is connected with a sliding groove along the length direction of the cross beam 10 of the box body 2, the second sliding block 9 is fixedly installed with a push cylinder 11 at the bottom end on both sides through a limiting block, and the piston rod of the push cylinder 11 extends to the clamping assembly 12 through the second sliding block 9 at one end.

[0023] Specifically, the rubber stretching detection mechanism 1 is essentially through the spacing adjustment to adaptively clamp and fix the rubber skirt on the lightning arrester with different size spacing, so as to facilitate the subsequent stretching detection test, so as to effectively detect the quality of the rubber skirt on the lightning arrester. The rubber stretching detection mechanism 1 and the cleaning mechanism not only work at the same time, but also cooperate with the rubber stretching detection mechanism 1. The rotating shaft on the first swing rod 8 is fixed on the second sliding block 9. The first swing rod 8 rotates through the multi-diamond rod, so that the second sliding block 9 at the diagonal can be adjusted in the horizontal spacing on the cross beam 10. During the movement of the second sliding block 9 on the cross beam 10, the cleaning mechanism can clean the entire cross beam 10, so as to prevent particles from existing in the gap between the cross beam 10 and the second sliding block 9, and the timely cleaning work can be carried out.

[0024] The rubber stretching detection mechanism 1 is provided. Through the spacing adjustment of the clamping assembly 12, the rubber skirt at different positions on the lightning arrester can be clamped and fixed correspondingly, so as to facilitate the subsequent stretching detection work. After the driving motor 3 is started, the synchronous rotation of the first lead screw 4 and the second lead screw 5 can be driven. Under the action of the screw transmission, the first sliding block 7 moves reversely, and under the rotating connection action of the first swing rod 8, the second sliding block 9 at the diagonal of the four surrounding positions can also be synchronously spread and moved at multiple positions of the clamping assembly 12 on the cross beam 10. In turn, the spacing between the clamping assemblies 12 can be adaptively adjusted and corresponded to the rubber skirt. Moreover, the cross beam 10 on the box body 2 is provided in cooperation with the U-shaped setting of the second sliding block 9 itself, which can prevent the position deviation of the clamping assembly 12 during the movement and ensure the accuracy of the transmission member during the movement. The slot setting on the box body 2 also provides a corresponding support space for the placement of the lightning arrester, and can also facilitate the subsequent water discharge process to provide a corresponding water discharge space for the sealing detection test of the lightning arrester, so that the subsequent sealing detection work can be effectively carried out.

[0025] Reference Figure 1 、 Figure 3 、 Figure 5 and Figure 6 The clamping assembly 12 includes a moving frame 13 fixed on the piston rod of the push air cylinder 11. The moving frame 13 is fixedly installed on the top of the clamping cylinder 14. The piston rod of the clamping cylinder 14 extends to the push block 15. The first inclined surface 16 is provided on one end of the push block 15. The first inclined surface 16 is in contact with the clamping block 17. The clamping block 17 is connected to the moving frame 13 through the first spring 18 at the center position. The first spring 18 is provided with an extension rod 19 between the moving frame 13 and the clamping block 17. The moving frame 13 and the clamping block 17 form a clamping cavity. The clamping block 17 is provided with a second inclined surface 20 which is parallel to the first inclined surface 16.

[0026] The cleaning mechanism is arranged, and during the movement of the first sliding block 7 at both ends, the horizontal X-axis force of the first sliding block 7 can be converted into the horizontal Y-axis force of the third sliding block 22 by the rotating connection of the second swing rod 23, and the third sliding block 22 drives the cleaning brush 25 on the T-shaped rod 24 to move in the Y-axis direction in the opposite direction. During the movement of the cleaning brush 25, the second sliding block 9 also moves on the cross beam 10 during the cleaning movement of the cleaning brush 25, so that the cleaning brush 25 can clean the cross beam 10 comprehensively, prevent the accumulation of particulate matter on the cross beam 10, and ensure the cleanliness of the cross beam 10. Moreover, the second sliding block 9 can be opened during the movement of the second sliding block 9 and the cross beam 10, thereby preventing the cleaning brush 25 from being cleaned poorly, and the cleaning brush 25 can also clean the piston rod of the push cylinder 11 during the movement, thereby ensuring the normal pushing work of the push cylinder 11.

[0027] Specifically, the second sliding block 9 clamps and fixes the push cylinder 11 by a limiting block locking and fixing mode, and the second sliding block 9 is provided with a positioning groove connected with the piston rod of the push cylinder 11, so as to facilitate the horizontal movement of the moving frame 13 driven by the piston rod of the push cylinder 11, and then the clamping assembly 12 is pushed to the lightning arrester. The clamping cylinder 14 on the clamping assembly 12 is vertically arranged, which can allow the second sliding block 9 to move normally without interference, and can also utilize the space reasonably and effectively transfer the force to the push block 15.

[0028] In addition, the clamping blocks 17 can move horizontally along one side of the moving frame 13 by abutting against each other through the inclined surfaces, and can also play a buffering and adjusting role under the cooperation of the first spring 18 and the telescopic rod 19, and can also ensure that the clamping blocks 17 can move horizontally in an orderly manner. In an extended manner, the clamping blocks 17 can be connected by synchronous rods, and the synchronous rods can fixedly connect the adjacent clamping blocks 17, so as to ensure the synchronous effect of the clamping area between the clamping blocks 17, thereby effectively clamping and centering the rubber skirt. Since the linkage effect of the synchronous rod is a conventional technical means for those skilled in the art, the present application will not be described in detail, and the corresponding drawings will not be drawn, but it does not affect the effective implementation of the technical scheme of the present application.

[0029] Reference Figure 1 , Figure 3 and Figure 4The first sliding block 7 and the third sliding block 22 on the fixed plate 21 are connected through the second swing rod 23, the third sliding block 22 is provided with a strip-shaped groove connected with the fixed plate 21, and the third sliding block 22 is centrally symmetrically arranged relative to the box body 2, the extending end of the third sliding block 22 is connected with the cleaning brush 25 through the T-shaped rod 24, and the bristles on the cleaning brush 25 are in abutting contact with the cross beam 10 and the piston rod on the push air cylinder 11.

[0030] The clamping assembly 12 is arranged, the vertical arrangement of the clamping air cylinder 14 can avoid affecting the normal clamping work of the clamping assembly 12, and the rational use of space is ensured, the first inclined surface 16 on the push block 15 can be driven to move downward in the downward pushing process of the clamping air cylinder 14, and the first inclined surface 16 is in abutting contact with the second inclined surface 20 on the clamping block 17, so that the clamping block 17 is horizontally moved and effectively clamps the rubber skirt to realize effective clamping work, the movement is stable, and the clamping effect is good.

[0031] The two ends of the second swing rod 23 are rotatably connected to the first sliding block 7 and the third sliding block 22, and the fixed plate 21 is connected to the box body 2 in a plug-in manner. In addition, the fixed plate 21 can be connected to the box body 2 in a manner of being locked and fixed by a bolt assembly or a positioning pin, so that the installation and disassembly work of personnel is facilitated, and the work efficiency is improved. The strip-shaped groove on the fixed plate 21 provides a movement space for the third sliding block 22.

[0032] The T-shaped rod 24 at the extending end of the third sliding block 22 is designed in a shape, which can be effectively connected with the length of the cross beam 10, so as to achieve the corresponding cleaning effect. The bristles on the cleaning brush 25 can be connected with the cleaning brush 25 in a viscous fixed manner, so that the replacement of the structure part is facilitated.

[0033] Reference Figure 1 , Figure 7 and Figure 8 The on-line detection lightning arrester multi-station detection platform further comprises a sealing detection mechanism 26. The sealing detection mechanism 26 comprises a fixed rod 27 fixed at one end of the first sliding block 7. One end of the fixed rod 27 is connected with a check ring 29 arranged on the inner wall of a guide pipe 28. One end of the guide pipe 28 is fixed on a water tank 30 on the bottom plate.

[0034] Specifically, the check ring 29 and the sealing ring 31 on the inner wall of the guide pipe 28 are connected through a second spring 32. The outer wall edge of the sealing ring 31 is close to the second spring 32 and is connected with a bevel 33. One end of the outer wall of the bevel 33 is provided with an abutting groove 34 arranged on the side wall of the guide pipe 28. The outer wall of the sealing ring 31 is penetrated by a central shaft and extends to an movable plate 36 through an annular plate 35. The annular plate 35 is provided with a circular hole 37 matched with the annular plate 35. The movable plate 36 is provided with a shielding block 38 corresponding to the circular hole 37.

[0035] The annular plate 35 is connected to the inner wall of the conduit 28 by a positioning pin locking fastening, and a multi-way pipe 39 is arranged between the blocking ring 29 and the sealing ring 31 and is arranged on the inner wall of the conduit 28, and one end of the multi-way pipe 39 is connected to a water outlet 40 arranged in a notch of the box body 2.

[0036] In extension, the fixed rod 27 can also be arranged on the box body 2, so that when the first sliding block 7 is pushed to the corresponding position, the flow guide groove on the sealing detection mechanism 26 can be opened by the fixed rod 27, so as to inject water into the box body 2, and the sealing detection work of the lightning arrester is carried out by the water injection, and it is found out whether the sealing property of the lightning arrester meets the requirements, and the bevel 33 on the sealing ring 31 and the abutting groove 34 on the side wall of the conduit 28 are used in cooperation, and the abutting groove 34 can be slowly opened in the movement of the sealing ring 31, so as to achieve the purpose of water flow buffering, and when the abutting groove 34 is opened, the water can directly enter the box body 2 through the multi-way pipe 39, so as to carry out the subsequent sealing detection work.

[0037] The sealing detection mechanism 26 is arranged, and in the movement of the first sliding block 7, the movement of the blocking ring 29 can be pushed by the fixed rod 27, and under the action of mechanical transmission, the abutting groove 34 on the sealing ring 31 can be opened, so that the water in the water tank 30 enters the notch, and in the movement of the sealing ring 31, the shielding block 38 on the front end movable plate 36 can be synchronously moved, and then the round hole 37 on the annular plate 35 can be opened, so that the water entering can be pre-adjusted, so as to prevent the water from flowing too fast to cause corresponding friction damage to the transmission member, and the service life and reliability of the device are improved.

[0038] The arrangement of the second spring 32 between the sealing ring 31 and the blocking ring 29 not only can buffer and adjust the horizontal movement of the sealing ring 31, but also can achieve the one-way flow of water. Under the natural state of the water, the pressure close to the second spring 32 of the sealing ring 31 can make the sealing ring 31 move to the side of the second spring 32 and tightly adhere to the abutting groove 34, so as to prevent the reverse flow of the water, thereby ensuring the one-way flow of the water.

[0039] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

[0040] The preferred embodiments of the application disclosed above are only to facilitate the elucidation of the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments. Obviously, many modifications and variations can be made in light of the teachings above. The description is chosen and described in order to provide the best illustration of the application and its practical application to those skilled in the art and to enable those skilled in the art to best utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-station online testing platform for surge arresters, characterized in that, include: A rubber tensile testing mechanism (1) includes a box (2) with a slot, a drive motor (3) is fixedly installed at one end of the box (2), one end of the output shaft of the drive motor (3) extends to the first lead screw (4) inside the box (2), the output shaft of the drive motor (3) and the movable shaft fixed on the second lead screw (5) are connected by a conveyor belt (6), and both ends of the first lead screw (4) and the second lead screw (5) are helically driven by a first slider (7) that moves in the opposite direction. The first sliders (7) are connected by a first swing rod (8). The first swing rod (8) is polygonal and is mounted on the first slider (7) by rotational connection. The first swing rod (8) has a rotating shaft at its node. The bottom end of the rotating shaft is mounted on the second slider (9). The second slider (9) is U-shaped and has a groove connected along the length of the crossbeam (10) on the box body (2). Both sides of the bottom end of the second slider (9) are fixedly mounted with a push cylinder (11) by a limiting block. One end of the piston rod on the push cylinder (11) passes through the second slider (9) and extends to the clamping assembly (12).

2. The online testing platform for surge arresters with multiple workstations according to claim 1, characterized in that, The clamping assembly (12) includes a movable frame (13) fixed on the piston rod of the push cylinder (11). A clamping cylinder (14) is fixedly installed on the top of the movable frame (13). One end of the piston rod on the clamping cylinder (14) extends to the push block (15). One end of the push block (15) is provided with a first inclined surface (16). The outer wall of the first inclined surface (16) abuts against the clamping block (17). The center of the clamping block (17) is connected to the movable frame (13) by a first spring (18). Both sides of the first spring (18) are provided with telescopic rods (19) placed between the movable frame (13) and the clamping block (17).

3. The online testing platform for surge arresters with multiple workstations according to claim 2, characterized in that, A clamping cavity is formed between the movable frame (13) and the clamping block (17), and the clamping block (17) is provided with a second inclined surface (20) that is parallel to the first inclined surface (16).

4. The online testing platform for surge arresters with multiple workstations according to claim 1, characterized in that, The first slider (7) and the third slider (22) on the fixed plate (21) are connected by a second swing rod (23). The third slider (22) is provided with a strip groove connected to the fixed plate (21), and the third slider (22) is symmetrically arranged with respect to the center of the box (2). The extended end of the third slider (22) is connected to a cleaning brush (25) through a T-shaped rod (24). The bristles on the cleaning brush (25) abut against and fit against the crossbeam (10) and the piston rod on the push cylinder (11).

5. The online testing platform for surge arresters with multiple workstations according to claim 4, characterized in that, The two ends of the second swing rod (23) are mounted on the first slider (7) and the third slider (22) by means of rotational connection, and the fixing plate (21) is connected to the box body (2) by means of plug-in installation.

6. The online testing platform for surge arresters with multiple workstations according to claim 1, characterized in that, It also includes a sealing detection mechanism (26), which includes a fixing rod (27) fixed to one end of the first slider (7), and a retaining ring (29) placed on the inner wall of the conduit (28) at one end of the fixing rod (27). One end of the conduit (28) is fixed to the water tank (30) on the bottom plate.

7. The online testing platform for surge arresters with multiple workstations according to claim 6, characterized in that, The retaining ring (29) and the sealing ring (31) on the inner wall of the conduit (28) are connected by a second spring (32). The outer edge of the sealing ring (31) is connected to the second spring (32) with a bevel (33). One end of the outer wall of the bevel (33) is provided with an abutment groove (34) placed on the side wall of the conduit (28). The outer wall of the sealing ring (31) is connected to the annular plate (35) through the central shaft and extends to the movable plate (36). The annular plate (35) is provided with a round hole (37) that matches it. The movable plate (36) is provided with a blocking block (38) corresponding to the round hole (37).

8. The online testing platform for surge arresters with multiple workstations according to claim 7, characterized in that, The annular plate (35) is fixed to the inner wall of the conduit (28) by locking with a positioning pin. A multi-port pipe (39) is provided between the retaining ring (29) and the sealing ring (31) on the inner wall of the conduit (28). One end of the multi-port pipe (39) is connected to a drain outlet (40) located at the groove on the box body (2).

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