Terminal for cable partial discharge test

Abstract

The utility model belongs to the technical field of cable detection, and particularly relates to a terminal for a cable partial discharge test, which comprises a lower detection box, one side of the lower detection box is hinged with an upper detection box, the inner side wall of the upper detection box is slidably connected with a lifting plate, the bottom surface of the lifting plate is fixedly provided with two upper support columns, and the upper support columns are fixedly connected with the lifting plate. Upper U-shaped plates are fixedly mounted at the bottom ends of the two upper supporting columns, when a cable is detected, the cable is placed in the two lower U-shaped plates in the lower detection box, the lower detection box and the upper detection box are closed, a threaded rod is rotated to drive a lifting plate to ascend and descend according to the diameter of the cable, the height of the upper U-shaped plates is controlled, and the cable is detected. When a cable enters the upper U-shaped plate, the distance between the multiple lower moving plates and the multiple upper moving plates is controlled by controlling the lower adjusting assembly and the upper adjusting assembly according to the diameter of the cable, and therefore the cable can be conveniently fixed, and the ultrasonic detector can conveniently detect the cable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable detection technical field especially relates to a terminal for cable partial discharge test. BACKGROUND

[0002] With the rapid development of city economy, the city power grid cable rate continues to rise, the total amount of high voltage cable equipment maintains the average 10% fast growth, and the safe and stable operation of high voltage cable network is crucial to the whole power grid. The partial discharge online monitoring of the running cable can effectively master the cable operation state, timely find the insulation hidden danger and ensure the reliable operation.

[0003] There are many traditional detection methods for partial discharge, which can be generally divided into two categories of electric detection method and non-electric detection method. The non-electric detection method mainly includes ultrasonic method, light detection method, thermal detection method, discharge product analysis method and the like. At present, the power cable partial discharge detection devices on the market are various, but they generally have the low practicality defect. The existing power cable partial discharge detection device cannot be conveniently and quickly clamped on the outer side of the cable during the partial discharge detection of the cable. According to the live working safety distance requirement, the detection device clamped on the outer side of the cable needs to be clamped by means of tools, which leads to the existing detection method having certain missed detection situation, and buries the safety hidden danger for long-term use. In view of this, the utility model provides a terminal for cable partial discharge test. UTILITY MODEL CONTENT

[0004] The utility model aims at the above-mentioned technical problem, provides a kind of terminal for cable partial discharge test to solve the problems in the above background.

[0005] Therefore, the utility model provides a kind of terminal for cable partial discharge test, comprising:

[0006] The lower detection box is hinged with the upper detection box on one side, the inner side wall of the upper detection box is slidably connected with the lifting plate, the bottom surface of the lifting plate is fixedly installed with two upper support columns, the bottom end of the two upper support columns is fixedly installed with the upper U-shaped plate, the upper U-shaped plate is slidably connected with two upper moving plates, and semicircular wire holes are formed in the two sides of the lower detection box and the upper detection box.

[0007] Two groups of upper adjusting assemblies are arranged on the upper detection box and used to drive the movement of the plurality of upper moving plates.

[0008] Two lower support columns are fixedly installed on the inner bottom surface of the lower detection box, the top end of the two lower support columns is fixedly installed with the lower U-shaped plate, and the lower U-shaped plate is slidably connected with two lower moving plates.

[0009] Two sets of lower adjusting assemblies are arranged on the lower detection box and are used to drive the plurality of lower moving plates to move.

[0010] A plurality of mounting grooves are respectively arranged in the two lower U-shaped plates, the two upper U-shaped plates, the plurality of lower moving plates and the plurality of upper moving plates, and a pulley is rotatably arranged in each of the plurality of mounting grooves.

[0011] An ultrasonic detector is fixedly arranged on the bottom surface of the lifting plate.

[0012] In the above technical solution, further, the upper adjusting assembly comprises a strip-shaped groove arranged on one side of the upper detection box, an upper plate groove arranged on the bottom surface of the upper U-shaped plate, a first screw rod rotatably arranged in the upper plate groove, two threads with opposite rotation directions arranged on the first screw rod, two first screw sleeves threadedly connected to the first screw rod, the two first screw sleeves slidably connected to the upper plate groove, the bottom ends of the two first screw sleeves fixedly connected to the top ends of the two upper moving plates, and one end of the first screw rod extending through the strip-shaped groove and extending to the outside of the upper detection box.

[0013] In the above technical solution, further, the lower adjusting assembly comprises a lower plate groove arranged on the top surface of the lower U-shaped plate, a second screw rod rotatably arranged in the lower plate groove, two threads with opposite rotation directions arranged on the second screw rod, two second screw sleeves threadedly connected to the second screw rod, the top ends of the two second screw sleeves fixedly connected to the bottom surfaces of the two lower moving plates, and the two second screw sleeves slidably connected to the lower plate groove.

[0014] In the above technical solution, further, a first adjusting block is rotatably arranged on the outer side wall of the lower detection box, one end of the first adjusting block fixedly connected to one end of the second screw rod, and a second adjusting block fixedly arranged on one end of the first screw rod located outside the upper detection box.

[0015] In the above technical solution, further, a threaded rod is threadedly connected to the top surface of the upper detection box, and the bottom end of the threaded rod is rotatably connected to the top surface of the lifting plate.

[0016] In the above technical solution, further, a first fixed sleeve is fixedly arranged on one side of the lower detection box, a second fixed sleeve is fixedly arranged on one side of the upper detection box, and the same bolt is movably connected to the first fixed sleeve and the second fixed sleeve.

[0017] In the above technical solution, further, the two upper U-shaped plates and the two lower U-shaped plates are arranged in a staggered manner.

[0018] The present application has the following beneficial effects:

[0019] 1. The cable partial discharge test terminal, when the cable is detected, the cable is placed in the two lower U-shaped plates in the lower detection box, the lower detection box is closed with the upper detection box, the height of the upper U-shaped plate is controlled by rotating the threaded rod to drive the lifting plate to lift, when the cable enters the upper U-shaped plate, the distance between the plurality of lower moving plates and the plurality of upper moving plates is controlled by controlling the lower adjusting assembly and the upper adjusting assembly according to the diameter of the cable, so that the cable is fixed, and the ultrasonic detector is convenient for detecting the cable.

[0020] 2. The cable partial discharge test terminal, when the cable moves, a plurality of pulleys are arranged, the plurality of pulleys assist the cable to move, assist the cable to flow smoothly, prevent scratching the cable, when the lower detection box and the upper detection box are closed, the bolt is sleeved in the second fixed sleeve and the first fixed sleeve, the lower detection box and the upper detection box are limited, and the lower detection box and the upper detection box are prevented from separating. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0022] Figure 2 It is the internal structure schematic diagram of the lower detection box and the upper detection box of the utility model;

[0023] Figure 3 It is the lower U-shaped plate structure schematic diagram of the utility model;

[0024] Figure 4 It is the whole structure schematic diagram of the utility model;

[0025] Figure 5 It is the upper detection box section structure schematic diagram of the utility model;

[0026] Figure 6 It is the lower detection box section structure schematic diagram of the utility model.

[0027] The mark in the drawing indicates that:

[0028] 1, lower detection box;2, upper detection box;3, semicircular wiring hole;4, lower support column;5, lifting plate;6, upper support column;7, lower U-shaped plate;8, lower moving plate;9, upper moving plate;10, mounting groove;11, pulley;12, strip groove;13, upper plate groove;14, first screw;15, first threaded sleeve;16, lower plate groove;17, second screw;18, second threaded sleeve;19, first adjusting block;20, second adjusting block;21, first fixed sleeve;22, second fixed sleeve;23, bolt;24, upper U-shaped plate;25, ultrasonic detector;26, threaded rod. DETAILED DESCRIPTION

[0029] With reference to the drawings and the embodiments described herein, it will be understood that the drawings and embodiments are illustrative of only a few of the embodiments of the present application and are not therefore to be considered limiting of its scope, for the application is not limited to the embodiments illustrated in the description below.

[0030] In the description of the present application, it should be understood that the terms used herein are for the purpose of describing specific embodiments and are not intended to limit the example embodiments according to the present application. For the purpose of description, the size of each part shown in the drawings is not drawn in proportion to the actual ratio. The techniques, methods, and devices known to those of ordinary skill 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 the example embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0031] It should be noted that the terms "first", "second", and the like in the description and claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of the terms so designated is interchangeable under appropriate circumstances such that the embodiments of the present application described herein are capable of operation in other sequences than those illustrated or otherwise described herein. The terms "first", "second", and the like, so used in the description and claims are also not necessarily used consistently in reference to a particular aspect of the example embodiments of the present application, but are used in different places and / or times for the sake of comparison within the context.

[0032] It should be noted that in the description of the present application, the orientation or position relationship indicated by the terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal", and "top, bottom" is generally based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Without the opposite indication, these orientation terms do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be understood as limiting the scope of protection of the present application; the orientation terms "inner, outer" refer to the inner and outer of the contour of each component itself.

[0033] It should be noted that, in the present application, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a", "comprising", or "includes" does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus of the present embodiments are not limited by the order of the steps or the sequence for performing the steps, and can include performing the steps in different order, or concurrently, or in reverse order, or omitting one or more steps, or adding one or more steps, as appropriate, to the process, method, article, or apparatus. In addition, features described in relation to certain examples can be combined in other examples. Embodiment 1

[0034] Referring to Figures 1-6 The present embodiment provides a terminal for cable partial discharge test.

[0035] comprises:

[0036] The lower detection box 1 is hinged on one side of the upper detection box 2, the inner side wall of the upper detection box 2 is slidably connected with the lifting plate 5, the bottom surface of the lifting plate 5 is fixedly installed with two upper support columns 6, the bottom ends of the two upper support columns 6 are fixedly installed with upper U-shaped plates 24, the upper U-shaped plates 24 are slidably connected with two upper moving plates 9, and the two sides of the lower detection box 1 and the upper detection box 2 are provided with semicircular wiring holes 3; two sets of upper adjusting assemblies are arranged on the upper detection box 2 and used for driving the plurality of upper moving plates 9 to move; two lower support columns 4 are fixedly installed on the inner bottom surface of the lower detection box 1, the top ends of the two lower support columns 4 are fixedly installed with lower U-shaped plates 7, and the lower U-shaped plates 7 are slidably connected with two lower moving plates 8; two sets of lower adjusting assemblies are arranged on the lower detection box 1 and used for driving the plurality of lower moving plates 8 to move; a plurality of mounting grooves 10 are formed in the two lower U-shaped plates 7, the two upper U-shaped plates 24, the plurality of lower moving plates 8 and the plurality of upper moving plates 9, and a pulley 11 is rotatably installed in each mounting groove 10; and an ultrasonic detector 25 is fixedly installed on the bottom surface of the lifting plate 5; when the cable is detected, the cable is placed in the two lower U-shaped plates 7 in the lower detection box 1, the lower detection box 1 and the upper detection box 2 are closed, the lifting plate 5 is lifted by rotating the threaded rod 26 according to the cable diameter of the cable, the height of the upper U-shaped plate 24 is controlled, when the cable enters the upper U-shaped plate 24, the distance between the plurality of lower moving plates 8 and the plurality of upper moving plates 9 is controlled by controlling the lower adjusting assembly and the upper adjusting assembly according to the diameter of the cable, so that the cable is fixed, and the ultrasonic detector 25 detects the cable. Embodiment 2

[0037] The embodiment provides a terminal for cable partial discharge test.

[0038] The upper adjusting assembly comprises a strip-shaped groove 12 formed in one side of the upper detection box 2, an upper plate groove 13 formed in the bottom surface of the upper U-shaped plate 24, a first lead screw 14 rotatably installed in the upper plate groove 13, two first thread sleeves 15 threadedly connected with the first lead screw 14, the two first thread sleeves 15 being slidably connected with the upper plate groove 13, the bottom ends of the two first thread sleeves 15 being fixedly connected with the top ends of the two upper moving plates 9, and one end of the first lead screw 14 extending through the strip-shaped groove 12 and extending to the outside of the upper detection box 2; when the first lead screw 14 rotates, the distance between the two upper moving plates 9 is adjusted through the two first thread sleeves 15, so that the two upper moving plates 9 adapt to the diameter of the cable. Embodiment 3

[0039] The embodiment provides a terminal for cable partial discharge test.

[0040] The lower adjusting assembly comprises a lower plate groove 16 which is arranged on the top surface of the lower U-shaped plate 7, a second lead screw 17 is rotatably arranged in the lower plate groove 16, the second lead screw 17 is provided with two threads with opposite rotation directions, two second threaded sleeves 18 are threadedly connected to the second lead screw 17, the top ends of the two second threaded sleeves 18 are fixedly connected to the bottom surfaces of the two lower moving plates 8, and the two second threaded sleeves 18 are slidably connected to the lower plate groove 16; when the second lead screw 17 rotates, the distance between the two lower moving plates 8 is adjusted through the two second threaded sleeves 18, so that the two lower moving plates 8 can be adapted to the diameter of the cable. Embodiment 4

[0041] The embodiment provides a terminal for cable partial discharge test.

[0042] The outer side wall of the lower detection box 1 is rotatably provided with a first adjusting block 19, one end of the first adjusting block 19 is fixedly connected to one end of the second lead screw 17, and the end of the first lead screw 14 located outside the upper detection box 2 is fixedly provided with a second adjusting block 20; the first adjusting block 19 and the second adjusting block 20 are rotated, so that the first lead screw 14 and the second lead screw 17 are driven to rotate. Embodiment 5

[0043] The embodiment provides a terminal for cable partial discharge test.

[0044] The top surface of the upper detection box 2 is threadedly connected with a threaded rod 26, the bottom end of the threaded rod 26 is rotatably connected with the top surface of the lifting plate 5, the lifting plate 5 is driven to lift by rotating the threaded rod 26, and the height of the lifting plate 5 is adjusted. Embodiment 6

[0045] The embodiment provides a terminal for cable partial discharge test.

[0046] The side of the lower detection box 1 is fixedly provided with a first fixed sleeve 21, the side of the upper detection box 2 is fixedly provided with a second fixed sleeve 22, the same bolt 23 is movably sleeved in the first fixed sleeve 21 and the second fixed sleeve 22, when the lower detection box 1 and the upper detection box 2 are closed, the bolt 23 is sleeved in the second fixed sleeve 22 and the first fixed sleeve 21, the lower detection box 1 and the upper detection box 2 are limited, and separation of the lower detection box 1 and the upper detection box 2 is avoided. Embodiment 7

[0047] The embodiment provides a terminal for cable partial discharge test.

[0048] The two upper U-shaped plates 24 and the two lower U-shaped plates 7 are staggered, and the upper U-shaped plate 24 and the lower U-shaped plate 7 are arranged, so that the cable line is conveniently limited.

[0049] In use: when the cable line is detected, the cable line is placed in the two lower U-shaped plates 7 in the lower detection box 1, the lower detection box 1 and the upper detection box 2 are closed, the height of the upper U-shaped plate 24 is controlled by rotating the threaded rod 26 to drive the lifting plate 5 to lift, according to the diameter of the cable line, the spacing between the plurality of lower moving plates 8 and the plurality of upper moving plates 9 is controlled by controlling the lower adjusting assembly and the upper adjusting assembly, so that the cable line is conveniently fixed, and the ultrasonic detector 25 is convenient for detecting the cable line.

[0050] When the cable line moves, the plurality of pulleys 11 are arranged, the plurality of pulleys 11 assist the cable line to move, assist the cable line to flow through, and prevent the cable line from being scratched, when the lower detection box 1 and the upper detection box 2 are closed, the bolt 23 is sleeved in the second fixing sleeve 22 and the first fixing sleeve 21, so that the lower detection box 1 and the upper detection box 2 are limited, and separation of the lower detection box 1 and the upper detection box 2 is avoided.

[0051] The embodiments of the application are described above in combination with the drawings, and the embodiments and the features in the embodiments in the application can be combined with each other without conflict, the application is not limited to the above specific embodiments, the above specific embodiments are only illustrative but not restrictive, and a person skilled in the art can make many forms under the inspiration of the application without departing from the purpose of the application and the scope protected by the claims, and all the forms belong to the protection of the application.

Claims

1. A terminal for cable partial discharge test, characterized by, Include: Lower detection box (1), one side of the lower detection box (1) is hinged with upper detection box (2), the inner side wall of the upper detection box (2) is slidably connected with lifting plate (5), the bottom surface of the lifting plate (5) is fixedly installed with two upper support columns (6), the bottom ends of the two upper support columns (6) are fixedly installed with upper U-shaped plates (24), the inner sides of the upper U-shaped plates (24) are slidably connected with two upper moving plates (9), the two sides of the lower detection box (1) and the upper detection box (2) are provided with semicircular wiring holes (3); Two groups of upper adjusting assemblies are arranged on the upper detection box (2) and used for driving the plurality of upper moving plates (9) to move; Two lower support columns (4) are fixedly installed on the inner bottom surface of the lower detection box (1), and the top ends of the two lower support columns (4) are fixedly installed with lower U-shaped plates (7), and the inner sides of the lower U-shaped plates (7) are slidably connected with two lower moving plates (8); Two groups of lower adjusting assemblies are arranged on the lower detection box (1) and used for driving the plurality of lower moving plates (8) to move; A plurality of mounting grooves (10) are formed in the two lower U-shaped plates (7), the two upper U-shaped plates (24), the plurality of lower moving plates (8) and the plurality of upper moving plates (9), and a pulley (11) is rotatably installed in each of the plurality of mounting grooves (10); An ultrasonic detector (25) is fixedly installed on the bottom surface of the lifting plate (5).

2. The terminal for partial discharge test of a cable according to claim 1, wherein The upper adjusting assembly comprises a strip-shaped groove (12) formed in one side of the upper detection box (2), an upper plate groove (13) formed in the bottom surface of the upper U-shaped plate (24), a first screw rod (14) rotatably installed in the upper plate groove (13), two threads with opposite rotation directions formed on the first screw rod (14), two first threaded sleeves (15) threadedly connected with the first screw rod (14), the two first threaded sleeves (15) slidably connected with the upper plate groove (13), the bottom ends of the two first threaded sleeves (15) fixedly connected with the top ends of the two upper moving plates (9), and one end of the first screw rod (14) extending through the strip-shaped groove (12) and extending to the outside of the upper detection box (2).

3. The terminal for partial discharge test of a cable according to claim 1, wherein The lower adjusting assembly comprises a lower plate groove (16) formed in the top surface of the lower U-shaped plate (7), a second screw rod (17) rotatably installed in the lower plate groove (16), two threads with opposite rotation directions formed on the second screw rod (17), two second threaded sleeves (18) threadedly connected with the second screw rod (17), the top ends of the two second threaded sleeves (18) fixedly connected with the bottom surfaces of the two lower moving plates (8), and the two second threaded sleeves (18) slidably connected with the lower plate groove (16).

4. The terminal for partial discharge test of a cable according to claim 2, wherein The outer side wall of the lower detection box (1) is rotationally installed with a first adjusting block (19), one end of the first adjusting block (19) is fixedly connected with one end of a second lead screw (17), and one end of the first lead screw (14) located outside the upper detection box (2) is fixedly installed with a second adjusting block (20).

5. The terminal for partial discharge test of a cable according to claim 1, wherein The top surface of the upper detection box (2) is threadedly connected with a threaded rod (26), and the bottom end of the threaded rod (26) is rotationally connected with the top surface of the lifting plate (5).

6. The terminal for partial discharge test of a cable according to claim 1, wherein One side of the lower detection box (1) is fixedly installed with a first fixing sleeve (21), one side of the upper detection box (2) is fixedly installed with a second fixing sleeve (22), and the same bolt (23) is movably sleeved in the first fixing sleeve (21) and the second fixing sleeve (22).

7. The terminal for partial discharge test of a cable according to claim 1, wherein Two upper U-shaped plates (24) and two lower U-shaped plates (7) are staggered.

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