High-frequency spark testing machine for dynamic cable insulation performance detection

Abstract

The invention relates to the technical field of cable insulation performance detection, in particular to a dynamic cable insulation performance detection high-frequency spark testing machine which comprises a high-frequency spark testing machine body, a hammer ball is arranged on the high-frequency spark testing machine body, a first supporting piece is arranged on the high-frequency spark testing machine body, and a second supporting piece is arranged on the high-frequency spark testing machine body. A penetrating opening is formed in the high-frequency spark testing machine main body; the twisting mechanism comprises a fixing frame arranged on the high-frequency spark testing machine body, a rotating part and a fixing shaft, the rotating part and the fixing shaft are arranged on the fixing frame, and a first rubbing part is rotationally arranged on the fixing shaft. The first rubbing part is made to rotate with the fixing shaft as the rotating axis through the rotating part, a cable is twisted, rubbing is achieved, and the stability of the high-frequency spark testing machine is improved. According to the cable conveying device, the part, arranged in the weight ball, of the cable rotates, the contact distance between the part and the weight ball is changed in the conveying process, so that when the surface of the cable is damaged, voltage can more easily break through air to generate sparks, and the detection accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable insulation performance detection, and particularly to a high-frequency spark tester for dynamically detecting the insulation performance of cables. Background Art

[0002] The high-frequency spark tester applies a high voltage to the chain balls. When the cable passes through the chain balls, if there is a break in the cable skin, the high voltage will break down the air and generate sparks. When the cable insulation layer is intact, the high voltage will not break down and no sparks will be generated. Therefore, the high-frequency spark tester is often used to dynamically detect the insulation performance of the cables during transportation.

[0003] There are usually several hanging chain balls on the high-frequency spark tester. The chain balls naturally fall due to gravity, and the transported cable passes through the spaces between the hanging chain balls. Since the chain balls are in a natural falling state, generally, the chain balls can contact the side of the cable well. However, for thicker cables, although the upper part of the cable can be brought into contact by spreading the chain balls due to the increased diameter, the distance between the chain balls in the natural falling state and the central part of the lower surface of the cable is relatively far. Therefore, it is also more difficult to break down the air. When there is a break in the central part of the lower surface of the cable, if the voltage is not sufficient to break down the air, it will cause missed detection, reducing the accuracy of the detection. For this reason, a high-frequency spark tester for dynamically detecting the insulation performance of cables is proposed. Summary of the Invention

[0004] In view of the problem of easy missed detection when the cable diameter is relatively thick in the above or existing technologies, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a high-frequency spark tester for dynamically detecting the insulation performance of cables.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A high-frequency spark tester for dynamically detecting the insulation performance of cables, comprising a high-frequency spark tester main body, on which there are chain balls, a first support member is provided on the high-frequency spark tester main body, and a through hole is provided on the high-frequency spark tester main body; a torsion mechanism, which includes a fixed frame provided on the high-frequency spark tester main body, a rotating member and a fixed shaft provided on the fixed frame, and a first rubbing part is rotatably provided on the fixed shaft.

[0007] As a preferred solution of the high-frequency spark tester for dynamically detecting the insulation performance of cables of the present invention, wherein: there are two chain balls, which are symmetrically arranged on the high-frequency spark tester main body; the torsion mechanism further includes a second rubbing part connected to the first rubbing part; a second support member is provided on the high-frequency spark tester main body; the included angle between the first rubbing part and the second rubbing part is 180 degrees.

[0008] As a preferred embodiment of the high-frequency spark tester for detecting the insulation performance of dynamic cables in the present invention, the following is provided: the first kneading part includes a first swing arm, a first arc-shaped frame provided on the first swing arm, and a first roller provided on the first arc-shaped frame; the second kneading part includes a second swing arm, a second arc-shaped frame provided on the second swing arm, and a second roller provided on the second arc-shaped frame.

[0009] As a preferred embodiment of the high-frequency spark tester for detecting the insulation performance of dynamic cables in the present invention, the following is provided: a plurality of first rollers are provided, and the plurality of first rollers are arranged in an arc array on the first arc-shaped frame; a plurality of second rollers are provided, and the plurality of second rollers are arranged in an arc array on the second arc-shaped frame.

[0010] As a preferred embodiment of the high-frequency spark tester for detecting the insulation performance of dynamic cables in the present invention, the following is provided: the rotating member includes a motor provided on the fixed frame, and a turntable provided on the rotating end of the motor, and an eccentric column is provided on the turntable; a chute is provided on the first swing arm; the inner wall of the chute is slidably connected to the outer wall of the eccentric column.

[0011] As a preferred embodiment of the high-frequency spark tester for detecting the insulation performance of dynamic cables in the present invention, the following is provided: the torsion mechanism further includes a connecting plate, and the first swing arm is connected to the second swing arm through the connecting plate.

[0012] As a preferred embodiment of the high-frequency spark tester for detecting the insulation performance of dynamic cables in the present invention, the following is provided: the first support member includes a first support frame provided on the main body of the high-frequency spark tester, and a first rubber air bag rotatably provided on the first support frame; a first filling nozzle is provided on the first rubber air bag.

[0013] As a preferred embodiment of the high-frequency spark tester for detecting the insulation performance of dynamic cables in the present invention, the following is provided: the second support member includes a second support frame provided on the main body of the high-frequency spark tester, and a second rubber air bag rotatably provided on the second support frame; a second filling nozzle is provided on the second rubber air bag.

[0014] As a preferred embodiment of the high-frequency spark tester for detecting the insulation performance of dynamic cables in the present invention, the following is provided: a cover plate is rotatably provided on the main body of the high-frequency spark tester; a locking member is further included, and the locking member includes a rotating sleeve rotatably provided on the cover plate, and a screw sleeve rotatably provided in the rotating sleeve, and a screw rod is threadedly connected to one end of the screw sleeve; one end of the screw rod is rotatably connected to the main body of the high-frequency spark tester; the fixed frame is provided on the cover plate.

[0015] As a preferred embodiment of the high-frequency spark tester for detecting the insulation performance of dynamic cables according to the present invention, it further includes a limiting member, where the limiting member includes a limiting post disposed on the connecting plate and a rolling sleeve rotatably disposed on the limiting post.

[0016] The beneficial effects of the high-frequency spark tester for detecting the insulation performance of dynamic cables according to the present invention: By means of the rotating member, the first kneading portion rotates around the fixed axis, twisting the cable to achieve kneading. After the cable is kneaded, it will generate torsion and rotation, causing the part of the cable placed inside the chain ball to rotate, changing the contact position with the chain ball, and further causing the surface of the bottommost part of the cable to constantly change, so that the contact distance between it and the chain ball changes during transportation. In this way, when there is a break on the cable surface, the voltage can more easily break down the air to generate a spark, improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the high-frequency spark tester for detecting the insulation performance of dynamic cables.

[0019] Figure 2 It is Figure 1 the enlarged view of part A in

[0020] Figure 3 It is a schematic diagram of the structure of the locking member of the high-frequency spark tester for detecting the insulation performance of dynamic cables.

[0021] Figure 4 It is a front view of the high-frequency spark tester for detecting the insulation performance of dynamic cables.

[0022] In the figure: 1. High-frequency spark testing machine main body; 11. Chain ball; 12. First support member; 121. First support frame; 122. First rubber airbag; 123. First filling nozzle; 13. Second support member; 131. Second support frame; 132. Second rubber airbag; 133. Second filling nozzle; 14. Through hole; 15. Cover plate; 2. Torsion mechanism; 21. Fixed frame; 22. Rotating member; 221. Motor; 222. Turntable; 223. Eccentric column; 23. Fixed shaft; 24. First kneading part; 241. First swing arm; 242. Chute; 243. First arc-shaped frame; 244. First roller; 25. Second kneading part; 251. Second swing arm; 252. Second arc-shaped frame; 253. Second roller; 26. Connecting plate; 3. Locking member; 31. Rotating sleeve; 32. Nut sleeve; 33. Screw; 4. Limiting member; 41. Limiting column; 42. Roller sleeve. Detailed implementation mode

[0023] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation mode of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0024] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0025] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation mode of the present invention. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it a separate or selectively exclusive embodiment from other embodiments.

[0026] Example 1, referring to Figures 1 to 4 , which is the first embodiment of the present invention. This embodiment provides a high-frequency spark testing machine for dynamically detecting the insulation performance of cables, including a high-frequency spark testing machine main body 1. A chain ball 11 is provided on the high-frequency spark testing machine main body 1. A first support member 12 is provided on the high-frequency spark testing machine main body 1. A through hole 14 is provided on the high-frequency spark testing machine main body 1. The high-frequency spark testing machine main body 1 provides a high-frequency high-voltage for the chain ball 11 to detect the cable skin. There are two through holes 14 arranged symmetrically. The cable passes through the through hole 14 and is threaded through the chain ball 11. The first support member 12 is used to support the cable. The cable is continuously conveyed through a traction mechanism or a winding machine and moves within the through hole 14, thereby realizing the dynamic detection of the cable insulation performance.

[0027] The twisting mechanism 2 includes a fixed frame 21 provided on the main body 1 of the high-frequency spark testing machine, a rotating member 22 and a fixed shaft 23 provided on the fixed frame 21. A first kneading part 24 is rotatably provided on the fixed shaft 23. The rotating member 22 can make the first kneading part 24 rotate with the fixed shaft 23 as the rotation axis, and then cooperate with the first support member 12 to twist the cable placed between the first support member 12 and the first kneading part 24 to achieve kneading. After the cable is kneaded, it will generate torsion and rotation, so that the part of the cable placed inside the chain ball 11 rotates, changing the contact part with the chain ball 11, and further making the bottom surface of the cable constantly change, so that the contact distance between it and the chain ball 11 changes during the conveying process, thereby increasing the fitting part between the cable and the chain ball 11 during the conveying process. In this way, when there is a breakage on the cable surface, the voltage can more easily break down the air to generate a spark, improving the detection accuracy.

[0028] It should be noted that since some of the cables to be detected are recycled cables and old cables with poor insulation skin quality, compared with the traditional method of directly conveying through the chain ball 11 for detection, the torsion or movement generated by the first kneading part 24 can also be used to detect whether the insulation skin quality of the cable is qualified. If the insulation skin is damaged during the torsion process, the high-frequency spark machine can also detect it to facilitate the judgment of the cable quality and further improve the detection effect.

[0029] Embodiment 2, referring to Figures 1 - 4 , is the second embodiment of the present invention. Different from the previous embodiment, there are two chain balls 11, which are symmetrically arranged on the main body 1 of the high-frequency spark testing machine; the two chain balls 11 respectively correspond to the through ports 14. The twisting mechanism 2 further includes a second kneading part 25 connected to the first kneading part 24; the second kneading part 25 can also rotate with the fixed shaft 23 as the rotation axis under the drive of the rotating member 22, so as to realize the kneading operation on the cable.

[0030] A second support member 13 is provided on the main body 1 of the high-frequency spark testing machine. The second support member 13 corresponds to the second kneading part 25 and is used to support the cable.

[0031] Specifically, there is a 180-degree angle between the first kneading part 24 and the second kneading part 25.

[0032] It should be noted that since the first kneading part 24 and the second kneading part 25 share the same rotating shaft, that is, the fixed shaft 23, when the first kneading part 24 and the second kneading part 25 are controlled to rotate by the rotating part 22, the kneading directions of the two are opposite. That is, when any end of the cable is subjected to an upward force, the other end will be subjected to a downward force. During the detection process, the part of the cable located in the through hole 14 is in a state where one end is high and the other end is low. Therefore, the contact parts of the two symmetrically arranged chain balls 11 with the cable will change. The change in the contact part here is not only the part change caused by torsion, but also includes the displacement change generated during tilting, as well as the change in the relative height between the chain ball 11 and the cable. Therefore, the entire epidermis of the cable can be covered to achieve comprehensive detection. During the movement of the cable, it will also cause slight swinging of the chain ball 11, and the swinging state of the chain ball 11 will also cause changes in the contact part with the cable, improving the detection accuracy. Moreover, since the force directions at both ends of the cable are different, the kneading effect on the cable will also be improved, increasing the torsion force on the cable epidermis to facilitate the detection of the cable surface quality.

[0033] Embodiment 3, refer to Figures 1 - 4 , which is the third embodiment of the present invention. Different from the previous embodiment, the first kneading part 24 includes a first swing arm 241, and a first arc-shaped frame 243 provided on the first swing arm 241, and further includes a first roller 244 provided on the first arc-shaped frame 243; a plurality of first rollers 244 are provided, and the plurality of first rollers 244 are arranged in an arc array on the first arc-shaped frame 243, and the first swing arm 241 is rotatably connected to the fixed shaft 23.

[0034] The second kneading part 25 includes a second swing arm 251, and a second arc-shaped frame 252 provided on the second swing arm 251, and further includes a second roller 253 provided on the second arc-shaped frame 252; a plurality of second rollers 253 are provided, and the plurality of second rollers 253 are arranged in an arc array on the second arc-shaped frame 252, and the second swing arm 251 is rotatably connected to the fixed shaft 23.

[0035] It should be noted that since both the first arc-shaped frame 243 and the second arc-shaped frame 252 are arc-shaped structures, the first rollers 244 provided above the first arc-shaped frame 243 or the second rollers 253 provided above the second arc-shaped frame 252 are arranged in an arc-shaped array. The first rollers 244 and the second rollers 253 are in a rotatable state themselves, and the outer walls of the first rollers 244 and the second rollers 253 are in a vertical state. That is, the first rollers 244 and the second rollers 253 are cylindrical structures. Therefore, there must be gaps between the ends of adjacent first rollers 244, and there will also be gaps between adjacent second rollers 253. During the process of the cable being kneaded, the area where the gaps are located is the buffer area, and the frictional force when the gaps contact the cable skin will be relatively smaller than the frictional force when contacting the outer walls of the first rollers 244 or the second rollers 253, so as to achieve the buffer effect and avoid damaging the cable due to excessive kneading.

[0036] Embodiment 4, refer to Figures 1 - 4 , which is the fourth embodiment of the present invention. Different from the previous embodiment, the rotating member 22 includes a motor 221 provided on the fixed frame 21, and a turntable 222 provided on the rotating end of the motor 221. An eccentric column 223 is provided on the turntable 222; controlling the rotation of the turntable 222 by the motor 221 will cause the eccentric column 223 to perform a circular motion.

[0037] A chute 242 is provided on the first swing arm 241; the inner wall of the chute 242 is slidably connected to the outer wall of the eccentric column 223. When the eccentric column 223 performs a circular motion, the eccentric column 223 will reciprocally slide in the chute 242, thereby driving the first swing arm 241 to perform a reciprocating rotation to achieve the swinging operation.

[0038] It should be noted that refer to Figure 2 , when the eccentric column 223 moves, it will move away from or close to the fixed axis 23. When the eccentric column 223 rotates at a position far from the fixed axis 23, since the distance between the eccentric column 223 and the rotation axis fixed axis 23 is far, the first swing arm 241 requires a greater stroke when rotating a certain angle. When the eccentric column 223 rotates at a position close to the fixed axis 23, since the distance between the eccentric column 223 and the rotation axis fixed axis 23 is close, the stroke of the first swing arm 241 when rotating a certain angle is relatively smaller. Therefore, during the kneading process, after the first swing arm 241 and the second swing arm 251 reach the maximum swing angle, the reset process will be faster, avoiding damaging the cable due to maintaining the maximum kneading state for a long time.

[0039] Specifically, the twisting mechanism 2 further includes a connecting plate 26. The first swing arm 241 is connected to the second swing arm 251 through the connecting plate 26. Due to the arrangement of the connecting plate 26, the rotation radius of the second swing arm 251 will increase. The second swing arm 251 can have a greater stroke and rubbing force. Since the cable is in a dynamic state and is wound by a tractor or a winder, the difficulty of rubbing the cable at the pulling end and the difficulty of swinging up and down will also increase. Therefore, after increasing the rotation radius of the second swing arm 251 through the connecting plate 26, the problem of difficult rubbing at the pulling end can be overcome, and the rubbing forces on both ends of the cable can be made different, so that the twisting states of both ends are different each time the cable is rubbed.

[0040] Furthermore, it further includes a limiting member 4. The limiting member 4 includes a limiting post 41 provided on the connecting plate 26 and a rolling sleeve 42 rotatably provided on the limiting post 41. There are two limiting posts 41, and the two limiting posts 41 are symmetrically arranged on the connecting plate 26. The cable passes through between the two rolling sleeves 42. When the connecting plate 26 swings, the rolling sleeves 42 on the limiting posts 41 will also swing. During the swinging process, due to the increase in the rotation radius of the second swing arm 251 by the connecting plate 26, the twisting states of both ends of the cable are different each time the cable is rubbed, and the tilting angles of both ends of the cable located on the rolling sleeves 42 are also different. The rolling sleeves 42 can serve as a limiting support. And because the swinging angles of the cable on both sides of the rolling sleeve 42 are different, the moving distances of both ends of the cable relative to the chain ball 11 will also change. By the different distances of the two ends changing, the detection accuracy is improved.

[0041] It should be noted that except for the pulling force at the pulling end, when the cable at the end is twisted, due to the certain rigidity of the cable itself, during the operation of the device, the cable far from the pulling end will have a slight bending phenomenon after being twisted. Therefore, the swinging amplitude of the chain ball 11 on the side far from the pulling end is also different from that of the chain ball 11 on the side close to the pulling end. By the different frequency swinging of the chain ball 11, the detection accuracy can also be improved.

[0042] Embodiment 5, referring to Figures 1 - 4 , which is the fifth embodiment of the present invention. Different from the previous embodiment, the first support member 12 includes a first support frame 121 provided on the main body 1 of the high-frequency spark tester and a first rubber airbag 122 rotatably provided on the first support frame 121; a first filling nozzle 123 is provided on the first rubber airbag 122.

[0043] Furthermore, the second support member 13 includes a second support frame 131 provided on the main body 1 of the high-frequency spark tester and a second rubber airbag 132 rotatably provided on the second support frame 131; a second filling nozzle 133 is provided on the second rubber airbag 132.

[0044] The first rubber airbag 122 and the second rubber airbag 132 are filled with hydraulic oil. Since the liquid cannot be compressed, the first rubber airbag 122 and the second rubber airbag 132 after being filled with hydraulic oil have good supporting effects. At the same time, due to the rubber material, the friction can be effectively increased. Through the rotation of the first rubber airbag 122 and the second rubber airbag 132, the conveying of the cable can be facilitated. Through the settings of the first filling nozzle 123 and the second filling nozzle 133, hydraulic oil can be filled into the first rubber airbag 122 to change its diameter, so that the device is applicable to cables of different diameters and is convenient for adjusting the friction with the cable.

[0045] Moreover, since the diameters of the first rubber airbag 122 and the second rubber airbag 132 are adjustable, the pressures applied by the first roller 244 and the second roller 253 can also be adjusted to facilitate the twisting of the cable.

[0046] Example 6, refer to Figures 1 - 4 , which is the sixth embodiment of the present invention. Different from the previous embodiment, a cover plate 15 is rotatably provided on the high-frequency spark tester main body 1; the cover plate 15 has a C-shaped structure and is used to cover the chain ball 11 to ensure the safe operation of the equipment. The cover plate 15 is connected to the high-frequency spark tester main body 1 through a hinge, and the cover plate 15 can be selectively opened to facilitate placing the cable into the through hole 14.

[0047] It further includes a locking member 3. The locking member 3 includes a rotating sleeve 31 rotatably provided on the cover plate 15, and a screw sleeve 32 rotatably provided in the rotating sleeve 31. One end of the screw sleeve 32 is threadedly connected with a screw rod 33; one end of the screw rod 33 is rotatably connected to the high-frequency spark tester main body 1; a fixing frame 21 is provided on the cover plate 15.

[0048] By rotating the cover plate 15, the through hole 14 can be opened to facilitate placing the cable. After the placement is completed, cover the cover plate 15, rotate the screw sleeve 32 and the screw rod 33, align the screw sleeve 32 and the screw rod 33. After covering the cover plate 15, the first roller 244 will be close to the outside of the first rubber airbag 122, and the second roller 253 will be close to and fit against the outside of the second rubber airbag 132. Just tighten the screw sleeve 32 and the screw rod 33 until the first roller 244 and the second roller 253 are in a vertical state.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A dynamic cable insulation performance detection high frequency spark tester, characterized in that: include, A high-frequency spark tester main body (1), wherein a chain ball (11) is provided on the high-frequency spark tester main body (1), a first support member (12) is provided on the high-frequency spark tester main body (1), and a through-hole (14) is provided on the high-frequency spark tester main body (1); The torsion mechanism (2) comprises a fixing frame (21) arranged on the main body (1) of the high-frequency spark tester, and a rotating member (22) and a fixed shaft (23) arranged on the fixing frame (21), wherein a first kneading portion (24) is rotatably arranged on the fixed shaft (23).

2. The dynamic cable insulation performance detection high-frequency spark testing machine according to claim 1, characterized in that: The chain balls (11) are provided in two pieces and are symmetrically arranged on the main body (1) of the high-frequency spark testing machine; The twisting mechanism (2) further comprises a second kneading portion (25) connected to the first kneading portion (24); A second support member (13) is provided on the high-frequency spark testing machine body (1); The first kneading portion (24) and the second kneading portion (25) form an angle of 180 degrees.

3. The dynamic cable insulation performance detection high-frequency spark testing machine according to claim 2, characterized in that: The first kneading portion (24) comprises a first swing arm (241), a first arc-shaped frame (243) arranged on the first swing arm (241), and a first roller (244) arranged on the first arc-shaped frame (243); The second kneading portion (25) comprises a second swing arm (251), a second arc-shaped frame (252) arranged on the second swing arm (251), and a second roller (253) arranged on the second arc-shaped frame (252).

4. The dynamic cable insulation performance detection high-frequency spark testing machine according to claim 3, characterized in that: A plurality of the first rollers (244) are provided, and the plurality of first rollers (244) are distributed in an arc-shaped array on the first arc-shaped frame (243); A plurality of the second rollers (253) are provided, and the plurality of second rollers (253) are distributed in an arc-shaped array on the second arc-shaped frame (252).

5. The dynamic cable insulation performance detection high-frequency spark testing machine according to claim 3 or 4, characterized in that: The rotating member (22) comprises a motor (221) disposed on the fixed frame (21), and a rotating disk (222) disposed at the rotating end of the motor (221), wherein an eccentric column (223) is disposed on the rotating disk (222); The first swing arm (241) is provided with a slide groove (242); The inner wall of the sliding groove (242) and the outer wall of the eccentric column (223) are slidably connected.

6. The dynamic cable insulation performance detection high frequency spark tester according to claim 5, characterized in that: The torsion mechanism (2) further comprises a connecting plate (26), and the first swing arm (241) is connected to the second swing arm (251) via the connecting plate (26).

7. The dynamic cable insulation performance detection high frequency spark testing machine as claimed in claim 2, 3 or 4, characterized in that: The first support member (12) comprises a first support frame (121) provided on the high-frequency spark test machine body (1), and a first rubber airbag (122) rotatably provided on the first support frame (121); The first rubber airbag (122) is provided with a first filling nozzle (123).

8. The dynamic cable insulation performance detection high frequency spark tester according to claim 7, characterized in that: The second support member (13) comprises a second support frame (131) provided on the high-frequency spark test machine body (1), and a second rubber airbag (132) rotatably provided on the second support frame (131); The second rubber airbag (132) is provided with a second filling nozzle (133).

9. The dynamic cable insulation performance detection high frequency spark testing machine as claimed in claim 1, 2, 3 or 4, characterized in that: A cover plate (15) is rotatably provided on the main body (1) of the high-frequency spark testing machine; It also comprises a locking member (3), the locking member (3) comprising a rotating sleeve (31) rotatably arranged on the cover plate (15), and a threaded sleeve (32) rotatably arranged in the rotating sleeve (31), one end of the threaded sleeve (32) being threadedly connected to a screw rod (33); One end of the screw rod (33) is rotatably connected to the high-frequency spark testing machine body (1); The fixing frame (21) is arranged on the cover plate (15).

10. The dynamic cable insulation performance detection high frequency spark tester according to claim 6, characterized in that: It also comprises a limiting member (4), wherein the limiting member (4) comprises a limiting column (41) provided on the connecting plate (26), and a rolling sleeve (42) rotatably provided on the limiting column (41).

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