CN209375102U - A kind of cross connection grounding case with adjustable conductive connection plates - Google Patents

Abstract

The utility model relates to a cross interconnected grounding box with adjustable conductive connecting plates, which comprises a box body, a box cover and a connecting pipe, the box cover is arranged on the side of the box body, and the connecting pipe is arranged on the box The bottom of the body, the inner wall of the box is provided with an insulating plate, one side of the insulating plate is provided with an upper fixed terminal and a grounding terminal, the other side of the insulating plate is provided with a lower fixed terminal, and the upper fixed terminal It is connected with the ground terminal through a fixed conductive connection plate, and the upper layer fixed terminal and the lower layer fixed terminal are cross-connected through a movable conductive connection plate. The cross interconnection grounding box with adjustable conductive connecting plates of the utility model realizes the effect of adjustable conductive connecting plates, changes the disadvantage that the length of the conductive connecting plates cannot be changed, and is convenient to disassemble and assemble, and has high working efficiency.

Description

A cross-connected grounding box with adjustable conductive connection plates

technical field

The utility model relates to the technical field of electric power, in particular to a cross interconnection grounding box with adjustable conductive connecting plates.

Background technique

Cross interconnection grounding is one of the grounding methods of the metal shielding layer (or metal sheath) of large-section high-voltage single-core power cables with a voltage level of 110kV and above. When the short-circuit fault current occurs, suppress the high impact overvoltage on the cable metal shielding layer, avoid overvoltage breakdown of the cable sheath insulation and cause multi-point grounding faults on the cable metal shielding layer, ensure the normal operation of the power cable, and extend the use of the cable life.

In the existing direct grounding box of the cable sheath, the metal shielding layer of the cable is connected to the fixed terminal, and then the fixed terminal is connected to the grounding terminal through a conductive connecting plate. However, as the service life of the direct grounding box increases, thermal expansion and contraction of the conductive connection plate, galvanic corrosion, or displacement of the terminals will easily cause the bolt holes of the conductive connection plate to be unable to accurately align with the terminal bolt holes, making it difficult or even impossible to reinstall the conductive connection plate .

Utility model content

In order to overcome at least one defect of the above-mentioned prior art, the utility model provides a cross interconnection grounding box with an adjustable conductive connecting plate, which can quickly disassemble and assemble the conductive connecting plate during maintenance, and also solves the problem of the conductive connecting plate Problems such as difficult or impossible reinstallation.

In order to solve the above technical problems, the utility model provides the following technical solutions:

A cross interconnected grounding box with adjustable conductive connecting plates, comprising a box body, a box cover and a connecting pipe, the box cover is arranged on the side of the box body, and the connecting pipe is arranged on the bottom of the box body, The inner wall of the box is provided with an insulating plate, one side of the insulating plate is provided with an upper fixed terminal and a grounding terminal, the other side of the insulating plate is provided with a lower fixed terminal, and the upper fixed terminal is connected to the grounding terminal. The terminals are connected through a fixed conductive connection plate, and the upper fixed terminal and the lower fixed terminal are cross-connected through a movable conductive connection plate, and the movable conductive connection plate includes a first connection plate and a second connection plate. The first connecting plate is flexibly connected to the second connecting plate.

Further, the upper layer fixed terminals include first upper layer fixed terminals, second upper layer fixed terminals and third upper layer fixed terminals, and the lower layer fixed terminals include first lower layer fixed terminals, second lower layer fixed terminals and third lower layer fixed terminals Terminals, by setting multiple fixed terminals, the stability of the device can be greatly improved.

Further, the first upper layer fixed terminal is connected to the second lower layer fixed terminal, the second upper layer fixed terminal is connected to the third lower layer fixed terminal, and the third upper layer fixed terminal is connected to the first lower layer fixed terminal. Layer fixed terminal connection, by setting multiple fixed terminals, can greatly improve the stability of the device.

Further, a connecting hole is opened at the connection between the first connecting plate and the second connecting plate, a first mounting hole is provided on the other side of the first connecting plate, and the other side of the second connecting plate There is a second installation hole on the side, which is convenient for installing and dismounting the conductive connecting plate, and can realize quick disassembly and assembly, and the work efficiency is high.

Further, the first installation hole is a circular installation hole, and the second installation hole is a U-shaped installation hole, which is convenient for installing and dismounting the conductive connecting plate, and has high working efficiency.

Further, nuts and bolts for fixing are arranged on the connection hole, which has a good fixing effect and is also easy to disassemble, which greatly improves the efficiency of disassembly and assembly.

Further, the shape of the fixed conductive connecting plate is in-line, and the structure is stable.

Further, a protector is provided between the upper fixed terminal and the fixed conductive connection plate, which has a good protection effect and effectively reduces safety risks.

Compared with the prior art, the utility model has the following beneficial effects:

By changing a single conductive connecting plate into two connecting plates for connection, the adjustable effect of the conductive connecting plate is realized, and the disadvantage that the length of the conductive connecting plate cannot be changed is changed. By rotating the conductive connecting plate, it can adapt to direct grounding of different sizes The box can also realize the quick disassembly and assembly of the conductive connecting plate. When the loss occurs and needs to be replaced, it can effectively avoid the problem that the conductive connecting plate is difficult or impossible to reinstall.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the utility model, and those skilled in the art can also obtain other drawings according to the accompanying drawings without any creative effort.

FIG. 1 is a structural schematic diagram of a cross-connected grounding box with adjustable conductive connecting plates according to the present invention.

Fig. 2 is an overall appearance diagram of a cross-interconnected grounding box with adjustable conductive connecting plates of the present invention.

Fig. 3 is a structural schematic diagram of a movable conductive connecting plate of a cross-connected grounding box with an adjustable conductive connecting plate according to the present invention.

In the figure: 1. Box body; 2. Box cover; 3. Connecting pipe; 4. Insulation board; 5. Upper fixed terminal; 51. First upper fixed terminal; 52. Second upper fixed terminal; 53. Third upper layer Fixed terminal; 6. Fixed terminal on the lower layer; 61. Fixed terminal on the first lower layer; 62. Fixed terminal on the second lower layer; 63. Fixed terminal on the third lower layer; 7. Ground terminal; 8. Fixed conductive connecting plate; 9. Movable conductive Connecting plate; 91, the first connecting plate; 92, the second connecting plate; 10, the protector.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Embodiments of the utility model include:

As shown in Figure 1-3, a direct grounding box with an adjustable conductive connecting plate includes a box body 1, a box cover 2 and a connecting pipe 3, the box cover 2 is arranged on the side of the box body 1, the The connecting pipe 3 is arranged at the bottom of the box body 1, the inner wall of the box body 1 is provided with an insulating plate 4, and one side of the insulating plate 4 is provided with an upper layer fixed terminal 5 and a grounding terminal 7, and the insulating plate The other side of 4 is provided with a lower fixed terminal 6, the upper fixed terminal 5 and the ground terminal 7 are connected by a fixed conductive connection plate 8, and the upper fixed terminal 5 and the lower fixed terminal 6 are connected by a The movable conductive connecting plate 9 is cross-connected, and the movable conductive connecting plate 9 includes a first connecting plate 91 and a second connecting plate 92 , and the first connecting plate 91 and the second connecting plate 92 are movably connected.

As shown in Figure 1, the upper fixed terminal 5 includes a first upper fixed terminal 51, a second upper fixed terminal 52 and a third upper fixed terminal 53, and the lower fixed terminal 6 includes a first lower fixed terminal 61, a second upper fixed terminal The second lower layer fixed terminal 62 and the third lower layer fixed terminal 63 can greatly improve the stability of the device by setting multiple fixed terminals.

As shown in Figure 1, the first upper layer fixed terminal 51 is connected to the second lower layer fixed terminal 62, the second upper layer fixed terminal 52 is connected to the third lower layer fixed terminal 63, and the third upper layer fixed terminal The terminal 53 is connected to the first lower layer fixed terminal 61, and by setting a plurality of fixed terminals, the stability of the device can be greatly improved.

In this embodiment, a connection hole is provided at the connection between the first connection plate 91 and the second connection plate 92, and a first installation hole is provided on the other side of the first connection plate 91. The other side of the second connection plate 92 is provided with a second installation hole, which is convenient for installing and dismounting the conductive connection plate, can realize quick disassembly and assembly, and has high working efficiency.

In this embodiment, the first mounting hole is a circular mounting hole, and the second mounting hole is a U-shaped mounting hole, which is convenient for installing and dismounting the conductive connection plate, and has high working efficiency.

In this embodiment, the connecting holes are provided with nuts and bolts for fixing, the fixing effect is good, and it is also easy to disassemble, which greatly improves the efficiency of disassembly.

In this embodiment, the shape of the fixed conductive connecting plate 8 is in-line, and the structure is stable.

As shown in FIG. 1 , a protector 10 is provided between the upper fixed terminal 5 and the fixed conductive connection plate 8 , which has a good protection effect and effectively reduces safety risks.

The above descriptions are only examples of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the utility model description, or directly or indirectly used in other related technologies Fields are all included in the scope of patent protection of the utility model in the same way.

Claims (8)

1. A cross interconnected grounding box with adjustable conductive connecting plates, characterized in that it comprises a box body, a case cover and a connecting pipe, the case cover is arranged on the side of the box body, and the connecting pipe is arranged on the side of the box body The bottom of the box, the inner wall of the box is provided with an insulating plate, one side of the insulating plate is provided with an upper fixed terminal and a grounding terminal, the other side of the insulating plate is provided with a lower fixed terminal, the upper The fixed terminal and the ground terminal are connected through a fixed conductive connection plate, and the upper layer fixed terminal and the lower layer fixed terminal are cross-connected through a movable conductive connection plate, and the movable conductive connection plate includes a first connection plate and a second connection plate. Two connecting plates, the first connecting plate and the second connecting plate are movably connected. 2. The cross-interconnected grounding box with adjustable conductive connecting plates according to claim 1, wherein the upper fixed terminals include a first upper fixed terminal, a second upper fixed terminal and a third upper fixed terminal, the The lower fixed terminals include a first lower fixed terminal, a second lower fixed terminal and a third lower fixed terminal. 3. The cross-interconnected grounding box with adjustable conductive connecting plates according to claim 2, wherein the first upper fixed terminal is connected to the second lower fixed terminal, and the second upper fixed terminal is connected to the second lower fixed terminal. The third lower layer fixed terminals are connected, and the third upper layer fixed terminals are connected to the first lower layer fixed terminals. 4. The cross-interconnected grounding box with adjustable conductive connecting plates according to claim 1, wherein a connecting hole is opened at the connection between the first connecting plate and the second connecting plate, and the first connecting plate The other side of the connecting plate is provided with a first mounting hole, and the other side of the second connecting plate is provided with a second mounting hole. 5 . The cross interconnection grounding box with adjustable conductive connecting plates according to claim 4 , wherein the first installation hole is a circular installation hole, and the second installation hole is a U-shaped installation hole. 6. The cross interconnection grounding box with adjustable conductive connecting plates according to claim 4, characterized in that nuts and bolts for fixing are arranged on the connecting holes. 7. The cross interconnection grounding box with adjustable conductive connecting plates according to claim 1, characterized in that the shape of the fixed conductive connecting plates is in-line. 8. The cross interconnection grounding box with adjustable conductive connecting plates according to any one of claims 1 to 7, wherein a protector is provided between the upper fixed terminal and the fixed conductive connecting plate.