Auxiliary device for partial discharge test of cable terminal

Abstract

The utility model belongs to the technical field of cable terminal discharge test, and particularly relates to a cable terminal partial discharge test auxiliary device which comprises a round rod, a sliding groove formed in the round rod, a telescopic rod slidably mounted in the sliding groove, a rotating groove formed in the top end of the telescopic rod, and clamping rods symmetrically and rotatably mounted in the rotating groove. The same test sensor body is fixedly installed on the two clamping rods, a limiting groove is formed in the telescopic rod and located below the rotating groove, a sliding block is installed in the limiting groove in a sliding mode, and connecting rods are rotatably installed at the two ends of the sliding block. Meanwhile, the stability of the whole device can be enhanced, it is guaranteed that when the whole device is used, the phenomenon that the whole device is unstable and collapses is avoided, a connecting line does not need to be used, the phenomenon that the connecting line is broken after being used for a long time is avoided, and the service life of the whole device is longer.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable terminal head discharge test technical field especially relates to a kind of cable terminal head partial discharge test auxiliary device. BACKGROUND

[0002] Cable terminal head partial discharge test is an important method for detecting the insulation condition of cable terminal head, and partial discharge is one of the early forms of insulation deterioration of cable terminal head. Through partial discharge test, potential insulation defects such as air gap, impurities and local electric field concentration inside the cable terminal head can be found in time to avoid insulation failure during operation, thereby ensuring the safe and stable operation of the power system. By selecting appropriate test method, strictly following the test procedure and paying attention to safety and precautions during testing, the insulation condition of the cable terminal head can be effectively detected, and potential insulation defects can be found in time to provide strong guarantee for the stable operation of the power system.

[0003] For example, the Chinese patent with publication number CN205049690U discloses a cable terminal head partial discharge test auxiliary device, which includes a telescopic rod, a clamping mechanism and a control mechanism. The clamping mechanism is arranged at one end of the telescopic rod, and the control mechanism is arranged at the other end of the telescopic rod and controls the clamping mechanism to perform clamping or loosening action. The utility model can flexibly adapt to test equipment of different heights, can avoid testers climbing the framework to work off the ground, improves the work efficiency of partial discharge test on cable terminal head, and reduces the work risk of testers.

[0004] The above-mentioned patent has the following problems:

[0005] The patent has some shortcomings when in use, such as: when detecting the cable terminal head, the whole device needs to be held up by personnel. If it is not held up and placed on the ground, the lower end of the whole device will be unstable during movement, which may fall and cause safety hazards. In addition, when clamping the cable, the connecting line is used for driving, and the connecting line will break after long-time friction with the first wire hole, the second wire hole and the wire clamp, thereby reducing the service life of the whole device. In view of this, a cable terminal head partial discharge test auxiliary device is proposed. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a cable terminal head partial discharge test auxiliary device to solve the problems in the background technology.

[0007] Therefore, the utility model provides a cable terminal head partial discharge test auxiliary device, which includes:

[0008] A round rod is internally provided with a sliding groove, a telescopic rod is slidingly installed in the sliding groove, a rotating groove is formed at the top end of the telescopic rod, and two clamping rods are symmetrically and rotatably installed in the rotating groove; a same test sensor body is fixedly installed on the two clamping rods; a limiting groove is formed in the telescopic rod below the rotating groove, and a sliding block is slidingly installed in the limiting groove; two connecting rods are rotatably installed at both ends of the sliding block, and one end of each of the two connecting rods is rotatably connected with a clamping rod.

[0009] A driving assembly is located in the telescopic rod and is used to drive the sliding block to move up and down.

[0010] A limiting assembly is located in the telescopic rod and is used to limit the telescopic rod.

[0011] A circular groove is formed at the bottom end of the round rod, a circular block is rotatably installed in the circular groove, a plug rod is fixedly installed at the bottom of the circular block and penetrates through the circular groove, and a stepping plate is fixedly installed on the plug rod.

[0012] In the technical solution, the limiting assembly can release the limitation of the telescopic rod, and then the personnel can move the telescopic rod to slide in the sliding groove until the telescopic rod is extended to a proper length. At this time, the limiting assembly can limit the telescopic rod to ensure that the length of the telescopic rod can be adjusted at will according to the height of the cable. Then, the personnel can insert the bottom end of the plug rod into the ground, and then step on the stepping plate with the foot to insert the lower end of the plug rod into the soil. At this time, the personnel can rotate the round rod to move the direction of the two clamping rods without lifting the whole device, thereby saving manpower and enhancing the stability of the whole device to ensure that the whole device will not collapse when in use.

[0013] The driving assembly drives the sliding block to move upward in the limiting groove. The upward movement of the sliding block drives the two connecting rods to move upward, which respectively presses the two clamping rods to rotate upward so that the two clamping rods are clamped. The two clamping rods drive the test sensor body to be clamped. The test sensor body can clamp the cable. Then, the personnel can perform partial discharge testing on the cable terminal on the ground to ensure that the cable terminal can be tested on the ground without using a connecting line, thereby avoiding the phenomenon that the connecting line is broken after long-term use and prolonging the service life of the whole device.

[0014] In the above technical solution, further, the driving assembly comprises:

[0015] Threaded rod, the threaded rod is rotatably installed in the limiting groove, the top end of the threaded rod penetrates the sliding block, the installation groove is arranged in the telescopic rod and between the rotating groove and the limiting groove, the motor is fixedly installed in the installation groove, the output end of the motor penetrates the bottom of the installation groove and is coaxially connected with the threaded rod, the rectangular groove is arranged in the telescopic rod and below the limiting groove, and the storage battery is fixedly installed in the rectangular groove.

[0016] In the technical solution, the motor is started, the output shaft of the motor drives the threaded rod to rotate forward, under the action of the thread, the forward rotation of the threaded rod drives the sliding block to move downward in the limiting groove, the downward movement of the sliding block drives the two connecting rods to move downward, the downward movement of the two connecting rods drives the two clamping rods to rotate downward, so that the two clamping rods are opened, and the opening of the two clamping rods drives the test sensor body to be opened, then the test sensor body can be moved to the side of the cable, the motor is started again, the output shaft of the motor drives the threaded rod to rotate reversely, under the action of the thread, the reverse rotation of the threaded rod drives the sliding block to move upward in the limiting groove, the upward movement of the sliding block drives the two connecting rods to move upward, the upward movement of the two connecting rods drives the two clamping rods to rotate upward, so that the two clamping rods are clamped, and the two clamping rods drive the test sensor body to be clamped, the test sensor body can clamp the cable, then personnel can perform partial discharge test on the cable terminal head on the ground, so that the cable terminal head can be tested on the ground, without using a connecting line, avoiding the phenomenon that the connecting line is broken after long-term use, and prolonging the service life of the overall device.

[0017] In the above technical solution, further, the threaded rod is threadedly connected with the sliding block, the output shaft of the motor is rotatably connected with the installation groove and the telescopic rod, and the storage battery is electrically connected with the motor.

[0018] In the technical solution, the rotation of the threaded rod can drive the sliding block to move up and down, the output shaft of the motor can normally rotate in the installation groove and the telescopic rod, the storage battery can supply power to the motor, and the motor can normally operate.

[0019] In the above technical solution, further, the limiting assembly comprises:

[0020] The sliding groove is arranged in the telescopic rod and below the rectangular groove, a plurality of limiting holes are arranged on the side of the round rod, the elastic block is slidably installed in the sliding groove, one end of the elastic block penetrates one side of the sliding groove and extends into one of the limiting holes, and the other end of the elastic block is fixedly installed with the spring fixed to the inner wall of the sliding groove.

[0021] In the technical scheme, personnel can press the elastic block according to the height of the cable line, so that the elastic block moves in the sliding groove and extrudes the spring to shrink, until the end of the elastic block moves out of one of the limiting holes, at which time the elastic block can release the telescopic rod from the limiting, then personnel can move the telescopic rod, so that the telescopic rod slides in the sliding groove, until the telescopic rod extends to a proper length, at which time the spring will extrude the elastic block to move under the action of the spring rebounding force, until the end of the elastic block is inserted into the corresponding limiting hole, at which time the elastic block can limit the telescopic rod, so as to ensure that the length of the telescopic rod can be adjusted at will according to the height of the cable line, then personnel can insert the bottom end of the inserting rod into the ground, and then step on the pedal with the foot, so that the lower end of the inserting rod is inserted into the land, at which time personnel can rotate the round rod to move the direction of the two clamping rods, without the need for personnel to lift the whole device, so as to save manpower, and also to enhance the stability of the whole device, so as to ensure that the whole device will not be unstable and collapse during use.

[0022] In the above technical scheme, further, one end of the elastic block is inserted into the limiting hole, and the limiting holes are vertically and equally spaced.

[0023] In the technical scheme, it is ensured that the end of the elastic block can be inserted into the limiting hole, and the structure of the limiting holes is stable.

[0024] In the above technical scheme, further, the limiting groove is located above the round rod, and the diameter of the opening of the round groove is smaller than the diameter of the round block.

[0025] In the technical scheme, the structure of the limiting groove is stable, and the round block cannot fall out of the round groove.

[0026] In the above technical scheme, further, the bottom end of the inserting rod is in an inverted conical structure.

[0027] In the technical scheme, the bottom end of the inserting rod can be easily inserted into the land.

[0028] The beneficial effects of the utility model are:

[0029] 1. The cable terminal partial discharge test auxiliary device, through the setting of the limiting assembly, the limiting assembly can release the limiting of the telescopic rod, then personnel can move the telescopic rod, so that the telescopic rod slides in the sliding groove until the telescopic rod extends to the appropriate length, at this time the limiting assembly can limit the telescopic rod, ensure that the length of the telescopic rod can be adjusted at will according to the height of the cable, then personnel can insert the bottom end of the insertion rod into the ground, and then step on the pedal with the foot, the lower end of the insertion rod can be inserted into the soil, at this time the personnel rotates the round rod to move the direction of the two clamping rods, without personnel holding up the whole device, thereby saving manpower, and the stability of the whole device can be enhanced, and the whole device can be ensured not to collapse when in use.

[0030] 2. The cable terminal partial discharge test auxiliary device, by setting the driving assembly, the driving assembly drives the sliding block to move upward in the limiting groove, the upward movement of the sliding block drives the two connecting rods to move upward, the upward movement of the two connecting rods respectively extrudes the two clamping rods to rotate upward, so that the two clamping rods are clamped, the two clamping rods drive the test sensor body to be clamped, the test sensor body can clamp the cable, then personnel can perform partial discharge test on the cable terminal on the ground, ensuring that the cable terminal can be tested on the ground, without using connecting wires, avoiding the phenomenon that the connecting wires are broken after long-term use, and prolonging the service life of the whole device. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the overall structure schematic diagram of the utility model;

[0032] Figure 2 It is the internal detailed structure schematic diagram of the telescopic rod in the utility model;

[0033] Figure 3 It is the cross section structure schematic diagram of the telescopic rod in the utility model;

[0034] Figure 4 It is the internal detailed structure schematic diagram of the round rod in the utility model;

[0035] Figure 5 It is the utility model Figure 4 It is the enlarged structure schematic diagram of A in the utility model;

[0036] Figure 6 It is the structure schematic diagram of the round block explosion in the utility model.

[0037] The marks in the figure are:

[0038] 1, round rod; 2, sliding groove; 3, telescopic rod; 4, rotating groove; 5, clamping rod; 6, test sensor body; 7, limiting groove; 8, sliding block; 9, connecting rod; 10, threaded rod; 11, mounting groove; 12, motor; 13, rectangular groove; 14, battery; 15, sliding groove; 16, elastic block; 17, limiting hole; 18, spring; 19, circular groove; 20, circular block; 21, insertion rod; 22, stepping plate. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0040] In the description of the present application, it should be noted that the terms used herein are only intended to describe the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0041] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not intended to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second" and the like are generally a class, and do not limit the number of objects, for example, the first object can be one or more. In addition, the specification and claims "and / or" indicate at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in a "or" relationship.

[0042] It should be noted that in the description of the present application, the orientation or positional relationship indicated by the terms such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Without being contrary, these orientation terms do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application; the orientation terms "inner, outer" refer to the inner and outer of the profile of each component itself.

[0043] It should be noted that in the present application, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "includes a" does not exclude the presence of another identical element in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples. Embodiment 1

[0044] Please refer to Figure 1 - Figure 6 As shown in the drawings, the embodiment provides a cable terminal partial discharge test auxiliary device, which comprises:

[0045] A round rod 1 is provided with a sliding groove 2 inside, a telescopic rod 3 is slidingly installed in the sliding groove 2, a rotating groove 4 is formed at the top end of the telescopic rod 3, two clamping rods 5 are symmetrically and rotatably installed in the rotating groove 4, and the same test sensor body 6 is fixedly installed on the two clamping rods 5. A limiting groove 7 is formed in the telescopic rod 3 below the rotating groove 4, a sliding block 8 is slidingly installed in the limiting groove 7, and a connecting rod 9 is rotatably installed at both ends of the sliding block 8. One end of each of the two connecting rods 9 is rotatably connected with the two clamping rods 5 respectively.

[0046] A driving assembly is located in the telescopic rod 3 and is used for driving the sliding block 8 to move up and down.

[0047] A limiting assembly is located in the telescopic rod 3 and is used for limiting the telescopic rod 3.

[0048] A circular groove 19 is formed at the bottom end of the circular rod 1, a circular block 20 is rotatably installed in the circular groove 19, the bottom of the circular block 20 penetrates the circular groove 19 and is fixedly installed with a plug rod 21, and the plug rod 21 is fixedly installed with a stepping plate 22.

[0049] The limiting assembly can release the limiting of the telescopic rod 3, and then the personnel can move the telescopic rod 3 to slide in the sliding groove 2 until the telescopic rod 3 extends to a proper length. At this time, the limiting assembly can limit the telescopic rod 3, so that the length of the telescopic rod 3 can be adjusted at will according to the height of the cable, and then the personnel can insert the bottom end of the plug rod 21 into the ground and step on the stepping plate 22 with the foot to insert the lower end of the plug rod 21 into the ground. At this time, the personnel can rotate the circular rod 1 to move the direction of the two clamping rods 5 without the need to lift the whole device, thereby saving manpower and enhancing the stability of the whole device to ensure that the whole device will not collapse when in use.

[0050] The driving assembly drives the sliding block 8 to move upward in the limiting groove 7, the upward movement of the sliding block 8 drives the two connecting rods 9 to move upward, the upward movement of the two connecting rods 9 respectively presses the two clamping rods 5 to rotate upward, so that the two clamping rods 5 are clamped, and the two clamping rods 5 drive the test sensor body 6 to be clamped. The test sensor body 6 can clamp the cable terminal, and then the personnel can perform partial discharge test on the cable terminal on the ground, so that the cable terminal can be tested on the ground without the need to use a connecting line, avoiding the phenomenon that the connecting line will be broken after long-term use, and prolonging the service life of the whole device. Embodiment 2

[0051] The embodiment provides a cable terminal partial discharge test auxiliary device, which has the following technical features in addition to the technical solutions of the above-mentioned embodiments. The driving assembly comprises:

[0052] A threaded rod 10 is rotatably installed in the limiting groove 7, the top end of the threaded rod 10 penetrates the sliding block 8, an installation groove 11 is formed in the telescopic rod 3 between the rotating groove 4 and the limiting groove 7, a motor 12 is fixedly installed in the installation groove 11, the output end of the motor 12 penetrates the bottom of the installation groove 11 and is coaxially connected with the threaded rod 10, a rectangular groove 13 is formed in the telescopic rod 3 below the limiting groove 7, and a storage battery 14 is fixedly installed in the rectangular groove 13.

[0053] Wherein, the motor 12 is started, the output shaft of the motor 12 drives the threaded rod 10 to rotate forward, under the action of the thread, the threaded rod 10 rotating forward drives the sliding block 8 to move downward in the limiting groove 7, the sliding block 8 moving downward drives the two connecting rods 9 to move downward, the two connecting rods 9 moving downward drives the two clamping rods 5 to rotate downward respectively, so that the two clamping rods 5 are opened, the two clamping rods 5 opening drives the test sensor body 6 to open, then the test sensor body 6 can be moved to the side of the cable, the motor 12 is started again, the output shaft of the motor 12 drives the threaded rod 10 to rotate reversely, under the action of the thread, the threaded rod 10 rotating reversely drives the sliding block 8 to move upward in the limiting groove 7, the sliding block 8 moving upward drives the two connecting rods 9 to move upward, the two connecting rods 9 moving upward drives the two clamping rods 5 to rotate upward respectively, so that the two clamping rods 5 are clamped, the two clamping rods 5 drives the test sensor body 6 to clamp, the test sensor body 6 can clamp the cable, then personnel can test the cable terminal head locally on the ground, ensuring that the cable terminal head can be tested on the ground, without using connecting wires, avoiding the phenomenon that the connecting wires break after long-term use, so that the service life of the overall device is longer. Embodiment 3

[0054] The embodiment provides a cable terminal head local discharge test auxiliary device, in addition to the technical scheme of the above-mentioned embodiment, further has the following technical features, the threaded rod 10 is threadedly connected with the sliding block 8, the output shaft of the motor 12 is rotatably connected with the mounting groove 11 and the telescopic rod 3, the storage battery 14 is electrically connected with the motor 12.

[0055] Wherein, ensure that the threaded rod 10 rotates and drives the sliding block 8 to move up and down, ensure that the output shaft of the motor 12 can rotate normally in the mounting groove 11 and the telescopic rod 3, ensure that the storage battery 14 can supply power to the motor 12, ensure that the motor 12 can operate normally. Embodiment 4

[0056] The embodiment provides a cable terminal head local discharge test auxiliary device, in addition to the technical scheme of the above-mentioned embodiment, further has the following technical features, the limiting assembly comprises:

[0057] The sliding groove 15 is arranged in the telescopic rod 3 and below the rectangular groove 13, a plurality of limiting holes 17 are formed in the circumferential side of the round rod 1, the elastic block 16 is slidably arranged in the sliding groove 15, one end of the elastic block 16 penetrates through one side of the sliding groove 15 and extends into one of the limiting holes 17, and the other end of the elastic block 16 is fixedly connected with the spring 18 fixedly arranged on the inner wall of the sliding groove 15.

[0058] Wherein, personnel can first according to the height of the cable line, press the spring block 16, so that the spring block 16 moves in the sliding groove 15 and extrudes the spring 18 to shrink, until the end of the spring block 16 moves out of one of the limiting hole 17, at this time the spring block 16 can release the limiting of the telescopic rod 3, then personnel can move the telescopic rod 3, so that the telescopic rod 3 slides in the sliding groove 2, until the telescopic rod 3 extends to the appropriate length, at this time under the action of the spring 18 rebound force, the spring 18 will extrude the spring block 16 to move, until the end of the spring block 16 is inserted into the corresponding limiting hole 17, at this time the spring block 16 can limit the telescopic rod 3, ensure that the length of the telescopic rod 3 can be adjusted at will according to the height of the cable line, then personnel can insert the bottom end of the plug rod 21 into the ground, and then step on the pedal 22 with the foot, the lower end of the plug rod 21 can be inserted into the soil, at this time the personnel rotate the round rod 1 can move the direction of the two clamping rods 5, without the need for personnel to hold up the whole device, thereby saving manpower, and can also enhance the stability of the whole device, ensure that the whole device will not be unstable and collapse when in use. Embodiment 5

[0059] The embodiment provides a cable terminal partial discharge test auxiliary device, in addition to comprising the technical scheme of the above embodiment, further has the following technical features, one end of the spring block 16 is matched with the limiting hole 17, and the plurality of limiting holes 17 are vertically and equidistantly distributed.

[0060] Wherein, ensure that the end of the spring block 16 can be inserted into the limiting hole 17, and the structure of the plurality of limiting holes 17 is stable. Embodiment 6

[0061] The embodiment provides a cable terminal partial discharge test auxiliary device, in addition to comprising the technical scheme of the above embodiment, further has the following technical features, the limiting groove 7 is located above the round rod 1, and the diameter of the opening of the circular groove 19 is smaller than the diameter of the circular block 20.

[0062] Wherein, ensure that the structure of the limiting groove 7 is stable, and the circular block 20 cannot fall off from the circular groove 19. Embodiment 7

[0063] The embodiment provides a cable terminal partial discharge test auxiliary device, in addition to comprising the technical scheme of the above embodiment, further has the following technical features, the bottom end of the plug rod 21 is in an inverted conical structure.

[0064] Wherein, ensure that the bottom end of the plug rod 21 can be easily inserted into the soil.

[0065] Working principle: in use, personnel can first press the elastic block 16 according to the height of the cable, so that the elastic block 16 moves in the sliding groove 15 and extrudes the spring 18 to shrink, until the end of the elastic block 16 moves out of one of the limiting holes 17, at this time the elastic block 16 can release the limiting of the telescopic rod 3, then personnel can move the telescopic rod 3, so that the telescopic rod 3 slides in the sliding groove 2, until the telescopic rod 3 extends to the appropriate length, at this time the spring 18 will extrude the elastic block 16 to move under the action of the rebounding force of the spring 18, until the end of the elastic block 16 is inserted into the corresponding limiting hole 17, at this time the elastic block 16 can limit the telescopic rod 3, to ensure that the length of the telescopic rod 3 can be adjusted at will according to the height of the cable, then personnel can insert the bottom end of the inserting rod 21 into the ground, and then step on the pedal 22 with the foot, the lower end of the inserting rod 21 can be inserted into the soil, at this time the personnel can rotate the round rod 1 to move the direction of the two clamping rods 5, without the need for personnel to lift the whole device, thereby saving manpower, and also enhancing the stability of the whole device, ensuring that the whole device will not be unstable and collapse during use.

[0066] Then, start the motor 12, the output shaft of the motor 12 drives the threaded rod 10 to rotate forward, under the action of the thread, the forward rotation of the threaded rod 10 drives the sliding block 8 to move downward in the limiting groove 7, the downward movement of the sliding block 8 drives the two connecting rods 9 to move downward, the downward movement of the two connecting rods 9 drives the two clamping rods 5 to rotate downward respectively, so that the two clamping rods 5 open, the opening of the two clamping rods 5 drives the test sensor body 6 to open, then the test sensor body 6 can be moved to the side of the cable, and the motor 12 is started again, the output shaft of the motor 12 drives the threaded rod 10 to rotate reversely, under the action of the thread, the reverse rotation of the threaded rod 10 drives the sliding block 8 to move upward in the limiting groove 7, the upward movement of the sliding block 8 drives the two connecting rods 9 to move upward, the upward movement of the two connecting rods 9 drives the two clamping rods 5 to rotate upward respectively, so that the two clamping rods 5 clamp tightly, the two clamping rods 5 drive the test sensor body 6 to clamp tightly, the test sensor body 6 can clamp the cable, then personnel can perform partial discharge test on the cable terminal on the ground, to ensure that the cable terminal can be tested on the ground, without the need for connecting wire, avoiding the phenomenon that the connecting wire will break after long time use, so that the service life of the whole device is longer.

[0067] The embodiments of the present application are described above with reference to the drawings, and the embodiments and features in the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are only illustrative but not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection of the present application.

Claims

1. A partial discharge test aid for cable terminations, characterized by Include: The round rod (1), the sliding groove (2) is set in the round rod (1), the telescopic rod (3) is slidably installed in the sliding groove (2), the top of the telescopic rod (3) is provided with a rotating groove (4), the clamping rod (5) is symmetrically installed in the rotating groove (4), the same test sensor body (6) is fixedly installed on the two clamping rods (5), the limit groove (7) is set in the telescopic rod (3) and below the rotating groove (4), the sliding block (8) is slidably installed in the limit groove (7), the two ends of the sliding block (8) are rotatably installed with the connecting rod (9), one end of the two connecting rods (9) is rotatably connected with the two clamping rods (5) respectively; The driving assembly is located in the telescopic rod (3), and is used for driving the sliding block (8) to move up and down; The limiting assembly is located in the telescopic rod (3), and is used for limiting the telescopic rod (3); The circular groove (19) is set in the bottom of the round rod (1), the circular block (20) is rotatably installed in the circular groove (19), the plug rod (21) is fixedly installed on the bottom of the circular block (20) and penetrates the circular groove (19), and the treading plate (22) is fixedly installed on the plug rod (21).

2. The partial discharge test auxiliary device for cable termination according to claim 1, characterized in that, The driving assembly comprises: The threaded rod (10) is rotatably installed in the limit groove (7), the top of the threaded rod (10) penetrates the sliding block (8), the installation groove (11) is set in the telescopic rod (3) and between the rotating groove (4) and the limit groove (7), the motor (12) is fixedly installed in the installation groove (11), the output end of the motor (12) penetrates the bottom of the installation groove (11) and is coaxially connected with the threaded rod (10), the rectangular groove (13) is set in the telescopic rod (3) and below the limit groove (7), and the storage battery (14) is fixedly installed in the rectangular groove (13).

3. The partial discharge test auxiliary device for cable termination according to claim 2, characterized in that The threaded rod (10) is threadedly connected with the sliding block (8), the output shaft of the motor (12) is rotatably connected with the installation groove (11) and the telescopic rod (3), and the storage battery (14) is electrically connected with the motor (12).

4. The partial discharge test auxiliary device for cable termination according to claim 1, characterized in that, The limiting assembly comprises: The sliding groove (15) is set in the telescopic rod (3) and below the rectangular groove (13), a plurality of limiting holes (17) are formed in the circumferential side of the round rod (1), the elastic block (16) is slidably installed in the sliding groove (15), one end of the elastic block (16) penetrates one side of the sliding groove (15) and extends into one of the limiting holes (17), and the other end of the elastic block (16) is fixedly installed with the spring (18) fixedly installed in the inner wall of the sliding groove (15).

5. The partial discharge test aid for cable terminations of claim 4, wherein, One end of the elastic block (16) is inserted into the limiting hole (17), and a plurality of limiting holes (17) are vertically and equidistantly distributed.

6. The partial discharge test auxiliary device for cable termination according to claim 1, wherein The limit groove (7) is located above the round rod (1), and the diameter of the opening of the circular groove (19) is smaller than the diameter of the circular block (20).

7. The partial discharge test auxiliary device for cable termination according to claim 1, characterized in that, The bottom end of the plug rod (21) is in an inverted conical structure.

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