CN216981145U - Grounding device and grounding protection system - Google Patents

Abstract

The utility model relates to the technical field of power equipment, and particularly discloses a grounding device and a grounding protection system. The grounding device comprises an electric connection part, a grounding part and a grounding part, wherein the electric connection part is used for being electrically connected with a cable; the grounding part is used for grounding; the switch cabinet is arranged between the power connection part and the grounding part, and comprises a cabinet body, a switch part arranged in a cavity of the cabinet body and a first cabinet door movably connected with the cabinet body, wherein two ends of the switch part are respectively electrically connected with the power connection part and the grounding part, the power connection part and the grounding part can be connected or disconnected through opening and closing the switch part, the first cabinet door is locked with the cabinet body through a locking electromagnetic lock, so that the switch part in the cabinet body is sealed, and the locking electromagnetic lock electrically connected with a cable can be kept in a locking state when being powered on, so that the switch part is isolated from the outside of the cabinet body. Through setting up the portion of connecting electricity, earthing part and cubical switchboard, the earthing device of this application not only earthing operation preparation work is few, maintenance efficiency is high, still possesses the advantage that the security is high, reuse, energy-concerving and environment-protective.

Description

Grounding device and grounding protection system

Technical Field

The application relates to the technical field of power equipment, in particular to a grounding device and a grounding protection system.

Background

When the power grid is in power failure operation, the line is required to be overhauled without power. At this moment, in order to ensure that the line is not electrified, the equipment is required to be powered off, a user needs to ascend to a lead or hang a temporary grounding wire on the equipment, and then the user is connected to a grounding flat iron meeting the condition that the grounding resistance is less than 4 ohms after four-phase short circuit of the grounding wire for grounding.

The grounding clamp or the grounding rod access port is not reserved in the electric cabinet, a large amount of time is usually spent in power failure, electricity testing and grounding hanging, the steps of disconnecting, closing, power restoration and the like are required before power transmission, preparation work is complex, and maintenance efficiency is affected.

SUMMERY OF THE UTILITY MODEL

One object of an embodiment of the present invention is to: provided is a grounding device which can solve the problems of complicated preparation work in the early stage of grounding operation and low efficiency of grounding operation in the prior art.

Another object of an embodiment of the present invention is to: the utility model provides a ground protection system, it can solve the not enough, the maintenance inefficiency problem of electric wire netting ground connection operation security among the prior art.

In order to achieve the purpose, the following technical scheme is adopted in the application:

in one aspect, there is provided a grounding device comprising:

the electric connection part is used for being electrically connected with the cable;

the grounding part is used for grounding;

the switch cabinet is arranged between the power connection part and the grounding part, and comprises a cabinet body, a switch part arranged in a cavity of the cabinet body and a first cabinet door movably connected with the cabinet body, wherein two ends of the switch part are respectively electrically connected with the power connection part and the grounding part, the switch part can be communicated or disconnected with the power connection part and the grounding part by opening or closing the switch part, the first cabinet door is locked with the cabinet body by arranging a locking electromagnetic lock to seal the switch part in the cabinet body, and the locking electromagnetic lock electrically connected with the cable can keep a locking state when being electrified so as to isolate the switch part from the outside of the cabinet body.

As a preferred scheme of the grounding device, the switch portion comprises a conductive stationary contact and a conductive movable contact block detachably connected with the conductive stationary contact, the conductive stationary contact is electrically connected with the power connection portion, and the conductive movable contact block is electrically connected with the grounding portion;

or, the conductive static contact seat is electrically connected with the grounding part, and the conductive electric contact block is electrically connected with the electric connection part.

As a preferable scheme of the grounding device, an insulating guide rail is arranged on the conductive stationary contact base, and the conductive electrical contact block is slidably arranged on the insulating guide rail.

As a preferable mode of the grounding device, the power connection part comprises at least one lead module, and the number of the switch parts corresponds to the number of the lead modules.

As a preferable scheme of the grounding device, when the number of the switch portions is at least two and the conductive stationary contact is electrically connected to the electrical connection portion, each conductive electrical contact block is fixedly disposed with the same conductive plate and is electrically connected to the grounding portion through the conductive plate.

As a preferable scheme of the grounding device, the lead wire module comprises a lead terminal and an insulated lead wire, a battery core of the insulated lead wire is electrically connected with a conductive core of the cable, and the lead terminal is used for wrapping and fixing an electric connection position of the insulated lead wire and the cable.

As a preferable mode of the grounding means, the number of the lead terminals on the same cable is at least one.

As a preferable mode of the grounding device, the grounding portion includes a grounding wire and a grounding rod which are electrically connected, one end of the grounding wire far away from the grounding rod is electrically connected with the switch portion, and the grounding rod is grounded.

As a preferred scheme of the grounding device, the switch cabinet further comprises a second cabinet door movably connected with the cabinet body, and the second cabinet door is used for covering the first cabinet door.

On the other hand, a ground protection system is provided, including pole, cable and earthing device, the cable erects on the pole, earthing device's the portion of connecting electricity with the cable electricity is connected.

The beneficial effect of this application does:

the grounding part is arranged to be electrically connected with the cable, so that the operation of hanging the grounding rod on the cable by ascending the height during each grounding operation can be reduced, and the operation of digging and burying the grounding rod during each grounding operation can also be reduced by arranging the grounding part to be grounded. Meanwhile, the switch cabinet is arranged between the electric connection part and the grounding part, so that whether the cable is grounded or not can be connected or disconnected by directly operating the switch cabinet, and the efficiency of grounding operation is improved. The switch cabinet comprises a cabinet body, a switch part arranged in a cavity of the cabinet body and a first cabinet door movably connected with the cabinet body, wherein two ends of the switch part are respectively electrically connected with the power connection part and the grounding part, and the power connection part and the grounding part can be connected or disconnected by opening and closing the switch part, namely whether the cable is connected or disconnected. Set up shutting electromagnetic lock between first cabinet door and the cabinet body, because shutting electromagnetic lock is connected with the cable electricity, can keep the lock-out state when shutting electromagnetic lock circular telegram, that is to say, rotate the relative cabinet body of first cabinet door or when removing the cavity to the closed cabinet body, can lock the closure of first cabinet door and the cabinet body and be connected, make switch portion in the cabinet body cavity completely cut off with cabinet body outside, avoid human or animal mistake to touch and arouse accident, on the other hand also can protect switch portion to avoid the loss corruption that the wind blows the sun and shine.

Therefore, the grounding device has the advantages of being few in preparation work of grounding operation, high in overhauling efficiency, high in safety, reusable, energy-saving and environment-friendly.

Drawings

The present application will be described in further detail below with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural diagram of a grounding device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a switch cabinet according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a switch cabinet according to another embodiment of the present application.

Fig. 4 is a schematic structural diagram of a ground protection system according to an embodiment of the present application.

In the figure:

1. a grounding device;

11. an electric connection part; 111. a lead module; 1111. a lead terminal; 1112. an insulated wire;

12. a ground part; 121. a ground lead; 122. a ground rod;

13. a switch cabinet; 131. a cabinet body; 132. a switch section; 1321. a conductive stationary contact; 1322. a conductive electrical contact block; 1323. an insulated guide rail; 1324. a conductive plate; 133. a first cabinet door; 134. locking the electromagnetic lock; 135. A second cabinet door;

2. a cable; 3. an electric pole.

Detailed Description

In order to make the technical problems solved, technical solutions adopted, and technical effects achieved by the present application clearer, the following describes technical solutions of embodiments of the present application in further detail, and it is obvious that the described embodiments are only a part of embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1, the present embodiment provides a grounding device 1 including:

an electrical connection part 11 for electrically connecting with the cable 2;

a ground portion 12 for grounding;

the switch cabinet 13 is disposed between the power connection portion 11 and the ground connection portion 12, the switch cabinet 13 includes a cabinet body 131, a switch portion 132 disposed in a cavity of the cabinet body 131, and a first cabinet door 133 movably connected to the cabinet body 131, two ends of the switch portion 132 are respectively electrically connected to the power connection portion 11 and the ground connection portion 12, the power connection portion 11 and the ground connection portion 12 can be connected or disconnected by opening and closing the switch portion 132, the first cabinet door 133 is locked with the cabinet body 131 by providing a latching electromagnetic lock 134 to close the switch portion 132 in the cabinet body 131, and the latching electromagnetic lock 134 electrically connected to the cable 2 can be kept in a locked state when being powered on, so as to isolate the switch portion 132 from the outside of the cabinet body 131.

In the present invention, the grounding part 11 is provided to electrically connect with the cable 2, so that the operation of hanging the grounding rod 122 on the cable 2 by ascending the height can be reduced in each grounding operation, and similarly, the operation of burying the grounding rod 122 by digging a pit in each grounding operation can be reduced by providing the grounding part 12 to ground. Meanwhile, the switch cabinet 13 is provided between the electric connection part 11 and the grounding part 12, and whether the cable 2 is grounded or not can be connected or disconnected by directly operating the switch cabinet 13, thereby improving the efficiency of grounding operation. The switch cabinet 13 includes a cabinet body 131, a switch portion 132 disposed in the cavity of the cabinet body 131, and a first cabinet door 133 movably connected to the cabinet body 131, wherein two ends of the switch portion 132 are electrically connected to the power connection portion 11 and the ground connection portion 12, respectively, and the power connection portion 11 and the ground connection portion 12 can be connected or disconnected by opening and closing the switch portion 132, that is, whether the cable 2 is grounded or not is connected or disconnected. Set up shutting electromagnetic lock 134 between first cabinet door 133 and the cabinet body 131, because shutting electromagnetic lock 134 is connected with cable 2 electricity, can keep the lock-out state when shutting electromagnetic lock 134 circular telegram, that is to say, rotate the relative cabinet body 131 of first cabinet door 133 or when removing the cavity to the closed cabinet body 131, can lock the closed connection of first cabinet door 133 and the cabinet body 131, make switch portion 132 in the cabinet body 131 cavity with cabinet body 131 outside isolated, avoid human or animal mistake to touch and arouse accident, on the other hand also can protect switch portion 132 to avoid the loss corruption of the sunning of blowing.

Therefore, the grounding device 1 of the present application not only has the advantages of less grounding operation preparation work and high maintenance efficiency, but also has the advantages of high safety, reusability, energy saving and environmental protection.

Preferably, referring to fig. 2, in the grounding device 1 of the present application, the switch portion 132 includes an electrically conductive stationary contact seat 1321 and an electrically conductive movable contact piece 1322 detachably connected to the electrically conductive stationary contact seat 1321, wherein the electrically conductive stationary contact seat 1321 is electrically connected to the electrical connection portion 11, and the electrically conductive movable contact piece 1322 is electrically connected to the grounding portion 12; alternatively, the conductive stationary contact 1321 is electrically connected to the ground portion 12, and the conductive movable contact piece 1322 is electrically connected to the electrical connection portion 11. By driving the conductive movable contact block 1322 to move closer to or away from the conductive stationary contact block, the electrical connection between the conductive movable contact block 1322 and the top stationary contact seat can be switched on or off, and the grounding of the cable 2 can be switched on or off.

More preferably, with continued reference to fig. 2, an insulating rail 1323 is disposed on the conductive stationary contact seat 1321, and the conductive movable contact block 1322 is slidably disposed on the insulating rail 1323, and by driving the conductive movable contact block 1322 to slide on the insulating rail 1323, the conductive movable contact block 1322 can be driven to move closer to or away from the conductive stationary contact block.

Alternatively, referring to fig. 1, the electric connection part 11 includes at least one lead module 111, and when there is only one cable 2, current is guided to the switching part 132 through one lead module 111; when the cable 2 has one or more multi-phases, a plurality of lead modules 111 may be tried to be electrically connected to the cable 2, and the number of the switch portions 132 corresponds to the number of the lead modules 111, and each cable 2 may be simultaneously controlled to be grounded through the corresponding switch portion 132.

Further, referring to fig. 2, when the number of the switching parts 132 is at least two and the conductive stationary contact blocks 1321 are electrically connected to the power connection part 11, each of the conductive movable contact blocks 1322 is fixedly provided with the same conductive plate 1324 and is electrically connected to the ground connection part 12 through the conductive plate 1324, and each of the cables 2 may be short-circuited to the conductive plate 1324. When the conductive plate 1324 is driven to move, each conductive movable contact piece 1322 can be driven to be connected or disconnected with respect to the conductive stationary contact seat 1321 at the same time, so that the working efficiency is improved.

Still preferably, referring to fig. 1, the lead module 111 includes a lead terminal 1111 and an insulated wire 1112, wherein a core of the insulated wire 1112 directly contacts and is electrically connected to a conductive core of the cable 2, and the lead terminal 1111 is used for wrapping and fixing the insulated wire 1112 and an electrical connection position of the cable 2, so as to fix the insulated wire 1112 on the cable 2.

In particular, the number of the lead terminals 1111 on the same cable 2 is at least one, and when a plurality of lead terminals 1111 are provided, the electrical connection point of the insulated wire 1112 and the cable 2 can be increased, and the success rate of grounding can be improved.

For the specific implementation structure of the grounding portion 12, optionally, the grounding portion 12 includes a grounding wire 121 and a grounding rod 122 electrically connected, one end of the grounding wire 121 far from the grounding rod 122 is electrically connected to the switch portion 132, and the grounding rod 122 is grounded. When it is necessary to change the position of the switch cabinet 13 or to replace the ground wire 121, a different length of the ground wire 121 may be replaced to reconnect the switch section 132 and the ground rod 122.

In another embodiment, referring to fig. 3, the switch cabinet 13 further includes a second cabinet door 135 movably connected to the cabinet body 131, and the second cabinet door 135 is used for covering the first cabinet door 133, so as to meet the requirements of pasting a schematic circuit diagram on the first cabinet door 133.

In addition, referring to fig. 4, the present application further provides a ground protection system, which includes a pole 3, a cable 2 and the grounding device 1 of any one of the above embodiments, wherein the cable 2 is erected on the pole 3, and the electric connection part 11 of the grounding device 1 is electrically connected to the cable 2. The grounding device 1 in this embodiment may have the same structure and achieve the same effect as the grounding device 1 in the above embodiments, and the description of this embodiment is omitted.

In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used merely for convenience of description and simplicity of operation, and do not indicate or imply that the device or element so referred to must be in a particular orientation, constructed and operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principles of the present application have been described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the present application and is not to be construed in any way as limiting the scope of the application. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present application without inventive effort, which shall fall within the scope of the present application.

Claims (10)

1. An earthing device (1), characterized in that it comprises:

the electric connection part (11) is used for being electrically connected with the cable (2);

a ground section (12) for grounding;

a switch cabinet (13) provided between the electric connection part (11) and the ground part (12), the switch cabinet (13) comprises a cabinet body (131), a switch part (132) arranged in the cavity of the cabinet body (131) and a first cabinet door (133) movably connected with the cabinet body (131), the two ends of the switch part (132) are respectively and electrically connected with the electric connection part (11) and the grounding part (12), the electric connection part (11) and the grounding part (12) can be connected or disconnected by opening or closing the switch part (132), the first cabinet door (133) is locked with the cabinet body (131) through a locking electromagnetic lock (134) to seal a switch part (132) in the cabinet body (131), the locking electromagnetic lock (134) electrically connected with the cable (2) can keep a locking state when being electrified so as to isolate the switch part (132) from the outside of the cabinet body (131).

2. The grounding device (1) of claim 1, wherein the switch portion (132) comprises an electrically conductive stationary contact base (1321) and an electrically conductive contact block (1322) detachably connected to the electrically conductive stationary contact base (1321), the electrically conductive stationary contact base (1321) is electrically connected to the grounding portion (11), and the electrically conductive contact block (1322) is electrically connected to the grounding portion (12);

or, the conductive static contact seat (1321) is electrically connected with the grounding part (12), and the conductive electric contact block (1322) is electrically connected with the electric connection part (11).

3. The grounding device (1) according to claim 2, characterized in that said conductive stationary contact block (1321) is provided with an insulating rail (1323), and said conductive electrical contact block (1322) is slidably arranged on said insulating rail (1323).

4. The grounding device (1) according to claim 2, characterized in that said electric connection portion (11) comprises at least one lead module (111), and the number of said switch portions (132) corresponds to the number of said lead modules (111).

5. The grounding device (1) according to claim 4, wherein when the number of the switch portions (132) is at least two and the conductive stationary contact blocks (1321) are electrically connected to the power connection portion (11), each of the conductive electrical contact blocks (1322) is fixedly disposed with the same conductive plate (1324) and is electrically connected to the ground connection portion (12) through the conductive plate (1324).

6. The grounding device (1) as claimed in claim 4, wherein the lead module (111) comprises a lead terminal (1111) and an insulated wire (1112), the core of the insulated wire (1112) is electrically connected with the conductive core of the cable (2), and the lead terminal (1111) is used for wrapping and fixing the electric connection position of the insulated wire (1112) and the cable (2).

7. A grounding device (1) as in claim 6, characterized by the fact that the number of lead terminals (1111) on the same cable (2) is at least one.

8. The grounding device (1) according to any one of claims 1 to 7, characterized in that the grounding portion (12) comprises an electrically connected grounding wire (121) and a grounding rod (122), wherein an end of the grounding wire (121) remote from the grounding rod (122) is electrically connected with the switch portion (132), and the grounding rod (122) is grounded.

9. The grounding device (1) according to any one of claims 1 to 7, wherein the switch cabinet (13) further comprises a second cabinet door (135) movably connected with the cabinet body (131), and the second cabinet door (135) is used for covering the first cabinet door (133).

10. An earth protection system, characterized in that it comprises a pole (3), a cable (2) and an earthing device (1) according to any one of claims 1 to 9, the cable (2) being erected on the pole (3), the electric connection portion (11) of the earthing device (1) being electrically connected with the cable (2).

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