Sealing protection device for partial discharge detection of high-voltage cable

Abstract

The utility model relates to the technical field of cable protection, in particular to a sealing protection device for partial discharge detection of a high-voltage cable, which comprises a placement plate, a sleeve is arranged at the top of the placement plate, a circular block is fixedly connected to an inner cavity of the sleeve, first grooves are formed in two sides of the circular block, and insulating sleeve blocks are arranged on two sides of the sleeve. The cable fixing device has the advantage of being convenient to disassemble, in the actual using process, through the arrangement of the fixing mechanism, after a cable is placed, the fixing block can make close contact with the insulation sleeve block, so that the sealing performance of the cable in the placing process is improved, and meanwhile due to the fact that the distance of the fixing block can be moved, the cable can be conveniently detached. According to the cable fixing device, through arrangement of the sleeve, cables of different thicknesses can be placed in the sleeve, through arrangement of the first bolt, the effect of fixing a cable core is achieved, the cables are not prone to being disengaged from inner cavities of the first grooves after being fixed, and the stability of the cables during placement is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable protection, in particular to a sealing protection device for partial discharge detection of high-voltage cables. Background Art

[0002] A cable is made of one or more mutually insulated conductors and an outer insulating protective layer. It is a wire that transmits electricity or information from one place to another. It is usually a rope-like cable made of several or several groups of wires (at least two in each group). Each group of wires is insulated from each other and often twisted around a center. The entire outside is covered with a highly insulating covering. The cable has the characteristics of being powered inside and insulated outside.

[0003] As disclosed in publication number CN210894426U, a sealing protective device for detecting partial discharge of a high-voltage cable is provided, which includes a cable body, a wrapping, a cable protection box, a metal protective shell, a sensor and a sensor lead. The sensor is located inside the metal protective shell, and the metal protective shell is located inside the cable protection box. Both ends of the cable protection box are fixed to the cable body by wrapping, and the sensor lead is led out from the sensor and passes through the metal protective shell and the cable protection box. The utility model provides a simple, reliable and easy-to-install sealing protective device for cable partial discharge detection points.

[0004] However, during the process of disassembling the cable, the separation process between the protective shell and the cable is not smooth, and the user has to use special disassembly tools to operate, which makes the whole disassembly process quite cumbersome, time-consuming and laborious; what is more troublesome is that since waterproof glue is injected into the cable protective shell, it is very easy to cause the protective shell to be damaged during disassembly. Once this happens, the user must replace the new cable protective shell when reinstalling, which undoubtedly increases the financial burden on the user. Utility Model Content

[0005] The utility model aims to provide a sealing protection device for partial discharge detection of high-voltage cables, which has the advantage of being easy to disassemble and solves the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing and protective device for partial discharge detection of high-voltage cables, comprising: a placement plate, a sleeve is arranged on the top of the placement plate, a round block is fixedly connected to the inner cavity of the sleeve, a first groove is provided on both sides of the round block, insulating sleeve blocks are arranged on both sides of the sleeve, one end of the insulating sleeve block passes through the inner cavity of the sleeve, a cable core is arranged in the inner cavity of the insulating sleeve block, one end of the cable core passes through the inner cavity of the first groove, a threaded hole is arranged on the top of the inner cavity of the first groove, two through holes are arranged on the top of the sleeve, a first bolt is threadedly connected to the threaded hole and the inner cavity of the through hole, two cavities are arranged inside the sleeve, slots are arranged on both sides of the inner cavity of the cavity, and a fixing mechanism is arranged in the inner cavity of the cavity.

[0007] The fixing mechanism includes a fixing block arranged in the inner cavity of the cavity, a second groove is opened on one side of the fixing block, a spring is fixedly connected to one side of the inner cavity of the second groove, and one end of the spring is fixedly connected to the sleeve.

[0008] Furthermore, as a preferred embodiment of the present invention, a limiting block is sleeved on the surface of the insulating sleeve block, and the bottom of the limiting block is fixedly connected to the placement plate.

[0009] Furthermore, as a preferred embodiment of the present invention, both sides of the inner cavity of the cavity are provided with sliding grooves, the inner cavity of the sliding groove is slidably connected with a slider, and one side of the slider is fixedly connected to a fixed block.

[0010] Furthermore, as a preferred embodiment of the present invention, a mounting seat is provided on the surface of the sleeve, a second bolt is threadedly connected to the top of the mounting seat, and the sleeve and the placement plate are detachably connected via the second bolt.

[0011] Furthermore, as a preferred embodiment of the present invention, a slope is provided on one side of the fixing block, and the slope surface is smooth.

[0012] Furthermore, as a preferred embodiment of the present invention, a telescopic structure is formed between the fixed block and the spring, and the maximum moving distance of the fixed block is equal to the deformation amount of the spring.

[0013] Beneficial effects. The technical solution of the present application has the following technical effects: the utility model has the advantage of easy disassembly. In actual use, through the setting of the fixing mechanism, when the cable is placed, the fixing block can be in close contact with the insulating sleeve block, thereby improving the sealing of the cable when placed. At the same time, since the distance of the fixing block can be moved, cables of different thicknesses can be placed inside the sleeve. Through the setting of the first bolt, the cable core is fixed, so that the cable is not easy to fall out of the inner cavity of the first groove after fixing, thereby improving the stability of the cable when placed.

[0014] It should be appreciated that all combinations of the foregoing concepts, as well as additional concepts described in greater detail below, may be considered part of the inventive subject matter of the present disclosure, provided such concepts are not mutually inconsistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a three-dimensional cross-sectional view of the local structure of the utility model;

[0018] Figure 3 The three-dimensional structure of the sleeve of the utility model is cut away Figure 1 ;

[0019] Figure 4 The three-dimensional structure of the sleeve of the utility model is cut away Figure 2 .

[0020] In the figure, the meanings of the various reference numerals are as follows: 1. placement plate; 2. sleeve; 3. round block; 4. first groove; 5. insulating sleeve block; 6. cable core; 7. threaded hole; 8. through hole; 9. first bolt; 10. cavity; 11. slot; 12. fixing mechanism; 121. fixing block; 122. second groove; 123. spring; 13. limit block; 14. slide groove; 15. slider; 16. mounting seat; 17. second bolt. DETAILED DESCRIPTION

[0021] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0022] As attached Figure 1 To Attachment Figure 4As shown: This embodiment provides a sealing protection device for partial discharge detection of high-voltage cables, including: a placement plate 1, a sleeve 2 is arranged on the top of the placement plate 1, a round block 3 is fixedly connected to the inner cavity of the sleeve 2, first grooves 4 are provided on both sides of the round block 3, insulating sleeve blocks 5 are provided on both sides of the sleeve 2, one end of the insulating sleeve block 5 passes through the inner cavity of the sleeve 2, a cable core 6 is provided in the inner cavity of the insulating sleeve 5, one end of the cable core 6 passes through the inner cavity of the first groove 4, a threaded hole 7 is provided at the top of the inner cavity of the first groove 4, two through holes 8 are provided at the top of the sleeve 2, the inner cavities of the threaded hole 7 and the through hole 8 are threadedly connected with a first bolt 9, two cavities 10 are provided inside the sleeve 2, slots 11 are provided on both sides of the inner cavity of the cavity 10, and a fixing mechanism 12 is provided in the inner cavity of the cavity 10.

[0023] The fixing mechanism 12 includes a fixing block 121 arranged in the inner cavity of the cavity 10, and a second groove 122 is opened on one side of the fixing block 121. A spring 123 is fixedly connected to one side of the inner cavity of the second groove 122. One end of the spring 123 is fixedly connected to the sleeve 2. A telescopic structure is formed between the fixing block 121 and the spring 123, and the maximum moving distance of the fixing block 121 is equal to the deformation amount of the spring 123. Through the coordinated use of the fixing block 121 and the spring 123, the insulating sleeve block 5 is fixed, so that the fixing block 121 can be in close contact with the insulating sleeve block 5, thereby improving the sealing performance.

[0024] Specifically, a limiting block 13 is sleeved on the surface of the insulating sleeve block 5 , and the bottom of the limiting block 13 is fixedly connected to the placement plate 1 .

[0025] In this embodiment, the limiting block 13 is provided to support the insulating sleeve 5, so that the insulating sleeve 5 is not easily offset when placed.

[0026] Specifically, both sides of the inner cavity of the cavity 10 are provided with a slide groove 14 , the inner cavity of the slide groove 14 is slidably connected with a slider 15 , and one side of the slider 15 is fixedly connected to the fixing block 121 .

[0027] In this embodiment, the slide groove 14 and the slider 15 are used in combination to limit the fixed block 121 , thereby improving the stability of the fixed block 121 when moving.

[0028] Specifically, a mounting seat 16 is sleeved on the surface of the sleeve 2 , and a second bolt 17 is threadedly connected to the top of the mounting seat 16 . The sleeve 2 and the placement plate 1 are detachably connected via the second bolt 17 .

[0029] In this embodiment, the mounting seat 16 and the second bolt 17 are used in combination to fix the sleeve 2 and facilitate the user to disassemble the sleeve 2.

[0030] Specifically, one side of the fixing block 121 is provided with an inclined surface, and the surface of the inclined surface is smooth.

[0031] In this embodiment, the setting of the inclined surface can save manufacturing costs. At the same time, when the insulating sleeve block 5 contacts the fixing block 121, the fixing block 121 can be moved into the inner cavity of the cavity 10 through the inclined surface.

[0032] The working principle and use process of this utility model:

[0033] The user passes the insulating sleeve block 5 through the fixing mechanism 12 to make it enter the inner cavity of the sleeve 2. When the insulating sleeve block 5 moves, it will drive the cable core 6 to move. As the insulating sleeve block 5 continues to move, the insulating sleeve block 5 will come into contact with the fixing block 121. Through the inclined surface opened on one side of the fixing block 121, when the insulating sleeve block 5 moves, it will drive the fixing block 121 to shrink into the inner cavity of the cavity 10. The fixing block 121 drives the slider 15 to slide in the inner cavity of the slide groove 14. At the same time, the fixing block 121 drives the spring when it moves. 123 is compressed, and when the insulating sleeve block 5 enters the inner cavity of the sleeve 2, the fixing block 121 will be in close contact with the surface of the insulating sleeve block 5, thereby improving the sealing performance. The insulating sleeve block 5 drives the cable core 6 to move to the inner cavity of the first groove 4, and then the user inserts the first bolt 9 into the inner cavity of the through hole 8 and then rotates the first bolt 9, so that the first bolt 9 continuously moves downward in the inner cavity of the threaded hole 7 until it contacts the cable core 6, thereby fixing the cable core 6 and preventing the cable core 6 from easily falling out of the inner cavity of the sleeve 2.

[0034] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A sealing protection device for partial discharge detection of high-voltage cables, comprising: A placement plate (1), characterized in that: a sleeve (2) is arranged on the top of the placement plate (1), a round block (3) is fixedly connected to the inner cavity of the sleeve (2), a first groove (4) is provided on both sides of the round block (3), an insulating sleeve block (5) is arranged on both sides of the sleeve (2), one end of the insulating sleeve block (5) penetrates into the inner cavity of the sleeve (2), a cable core (6) is arranged in the inner cavity of the insulating sleeve block (5), and one end of the cable core (6) penetrates The sleeve (2) is provided with a threaded hole (7) at the top of the inner cavity of the first groove (4), two through holes (8) are provided at the top of the sleeve (2), the inner cavities of the threaded hole (7) and the through hole (8) are threadedly connected with a first bolt (9), the sleeve (2) has two cavities (10), both sides of the inner cavity of the cavity (10) are provided with slots (11), and the inner cavity of the cavity (10) is provided with a fixing mechanism (12); The fixing mechanism (12) comprises a fixing block (121) arranged in the inner cavity of the cavity (10); a second groove (122) is provided on one side of the fixing block (121); a spring (123) is fixedly connected to one side of the inner cavity of the second groove (122); one end of the spring (123) is fixedly connected to the sleeve (2).

2. A sealing protection device for partial discharge detection of a high-voltage cable according to claim 1, characterized in that: A limiting block (13) is sleeved on the surface of the insulating sleeve block (5), and the bottom of the limiting block (13) is fixedly connected to the placement plate (1).

3. A sealing protection device for partial discharge detection of a high-voltage cable according to claim 1, characterized in that: Slide grooves (14) are provided on both sides of the inner cavity of the cavity (10), and a slider (15) is slidably connected to the inner cavity of the slide groove (14), and one side of the slider (15) is fixedly connected to a fixed block (121).

4. A sealing protection device for partial discharge detection of a high-voltage cable according to claim 1, characterized in that: The surface of the sleeve (2) is sleeved with a mounting seat (16), the top of the mounting seat (16) is threadedly connected with a second bolt (17), and the sleeve (2) and the placement plate (1) are detachably connected via the second bolt (17).

5. A sealing protection device for partial discharge detection of a high-voltage cable according to claim 1, characterized in that: One side of the fixing block (121) is provided with an inclined surface, and the surface of the inclined surface is smooth.

6. A sealing protection device for partial discharge detection of a high-voltage cable according to claim 1, characterized in that: A telescopic structure is formed between the fixed block (121) and the spring (123), and the maximum moving distance of the fixed block (121) is equal to the deformation amount of the spring (123).

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