Electrical cabinet grounding device

Abstract

The utility model discloses an electrical cabinet grounding device in the technical field of grounding devices, which comprises a grounding pile and a grounding wire, the section of the grounding pile is L-shaped, the bottom end of the grounding pile is an inclined tip, and the upper end of the grounding pile is welded with a mounting cylinder. According to the utility model, the installation of the lower bearing plate is carried out through the installation cylinder at the upper end of the grounding pile, the upper clamping plate is clamped on the lower bearing plate, the staggered folding plates are welded on the upper clamping plate and the lower bearing plate, the wire ducts in the folding plates are used for clamping the grounding wire, and the grounding wire is placed between the lower bearing plate and the upper clamping plate. The exposed part of the grounding wire is folded and clamped between the multiple staggered folding plates, the grounding wire is clamped in the containing groove, installation and connection are rapid and convenient, the grounding wire is communicated with the copper column, the other end of the grounding wire is connected with the metal shell of the electrical cabinet, the multiple copper side columns on the copper column conduct point discharge, and the overall resistance is reduced through the copper column and the copper side columns; the overall resistance of the device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding devices, in particular to a grounding device for an electrical cabinet. Background Art

[0002] Electrical cabinets are made of steel and are used to protect the normal operation of components. Electrical cabinets are generally made of hot-rolled steel plates and cold-rolled steel plates. Cold-rolled steel plates are softer than hot-rolled steel plates and are more suitable for the production of electrical cabinets. Electrical cabinets are widely used and are mainly used in the chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, transportation industry, etc. Electrical cabinets need to be grounded when in use. When electrical appliances leak electricity, the grounding device can guide the electrical energy into the earth to release it and ensure the normal operation of the equipment.

[0003] However, most of the existing grounding devices for electrical cabinets are connected to multiple grounding piles through copper wires. The copper wires and the multiple grounding piles are connected by welding, and the wiring is not convenient and fast enough. In addition, most ordinary grounding piles are made of galvanized steel plates, and the grounding resistance is large. It is necessary to connect the wires to more grounding piles to reduce the overall resistance. The installation points are widely distributed, which is inconvenient for quick installation and connection. In addition, ordinary ground piles are not driven into the ground quickly and conveniently, and are inconvenient for installation and operation. Based on this, the utility model designs a grounding device for an electrical cabinet to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an electrical cabinet grounding device to solve the above-mentioned problems that ordinary grounding piles are mostly made of galvanized steel plates, have a large grounding resistance, require wires to connect more grounding piles to reduce the overall resistance, have a wide distribution of installation points, and are inconvenient for quick installation and connection.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A grounding device for an electrical cabinet comprises a grounding pile and a grounding wire, wherein the grounding pile has an L-shaped cross-section, the bottom end of the grounding pile is an inclined tip, a mounting tube is welded to the upper end of the grounding pile, placement grooves are provided on both sides of the mounting tube, a copper column is installed through the inside of the mounting tube, the copper column is fitted and connected to the inner wall of the grounding pile, a plurality of slots are provided on the grounding pile, a plurality of copper side columns are welded on the copper column, the copper side columns are embedded in the plurality of slots, a lower support plate is welded to the upper end of the copper column, the lower support plate is embedded and installed in the mounting tube, upper support plates are clamped on both sides of the upper end of the lower support plate, a plurality of offset folding plates are welded on the lower support plate and the upper support plate, a wire groove is provided on the folding plate, the grounding wire is clamped in the wire groove of the plurality of offset clamped folding plates, and a top cover is threadedly connected to the mounting tube.

[0007] As a further solution of the utility model: the placement groove is a square groove, and the width of the placement groove is greater than the diameter of the grounding wire.

[0008] As a further solution of the utility model: the wire groove is arc-shaped and is arranged in the middle position of the folding plate.

[0009] As a further solution of the utility model: one end of the grounding wire is connected to a wiring board, and a connecting hole is provided on the wiring board.

[0010] As a further solution of the utility model: the edge of the top cover is connected to a plurality of anti-slip protrusions, and the upper end of the top cover is connected to a protective plate.

[0011] As a further solution of the utility model: side ears are welded on both sides of the installation tube, a fixing rod is installed through the side ears, and an identification column is connected to the upper end of the fixing rod.

[0012] As a further solution of the utility model: a plurality of reinforcing ribs are welded on the outer side of the grounding pile, and the plurality of reinforcing ribs are evenly distributed on the outer side of the grounding pile.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the lower support plate is installed by installing the installation tube on the upper end of the grounding pile, the upper clamping plate is clamped on the lower support plate, and the upper clamping plate and the lower support plate are welded with offset folding plates. The wire groove in the folding plate is used to clamp the grounding wire. When the grounding wire is placed between the lower support plate and the upper clamping plate, the exposed part of the grounding wire is folded and clamped between multiple offset folding plates. The grounding wire is clamped in the placement groove. The installation and connection are fast and convenient. The grounding wire is connected to the copper column. The other end of the grounding wire is connected to the metal shell of the electrical cabinet. Multiple copper side columns on the copper column perform tip discharge. The overall resistance is reduced by the copper column and the copper side columns, thereby reducing the overall resistance of the device.

[0015] 2. In the utility model, a terminal board is connected through one end of the grounding wire, and a connecting hole is provided on the terminal board. A connecting hole is provided on the terminal board to which one end of the grounding wire is connected, and the terminal board is connected to the metal casing of the electrical cabinet with bolts. The installation and connection are convenient. Side ears are welded on both sides of the installation tube, and a fixing rod is installed through the side ears. The upper end of the fixing rod is connected to an identification column. The side ears welded on both sides of the installation tube are penetrated by the fixing rod, and the fixing rod is inserted into the foundation, and is assisted in fixing by the fixing rods on both sides. At the same time, the identification column on the fixing rod is used to mark the foundation point for easy identification. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2This is a schematic diagram of the overall explosion protection structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 4 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1. Grounding pile; 2. Mounting tube; 3. Placement groove; 4. Copper column; 5. Lower supporting plate; 6. Folding plate; 7. Wire trough; 8. Upper clamping plate; 9. Grounding wire; 10. Terminal block; 11. Clamping groove; 12. Copper side column; 13. Top cover; 14. Protective plate; 15. Side ear; 16. Fixing rod; 17. Identification column; 18. Reinforcement rib. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example:

[0023] See also Figure 1-Figure 4In the embodiment of the utility model, an electrical cabinet grounding device includes a grounding pile 1 and a grounding wire 9. The cross section of the grounding pile 1 is L-shaped, the bottom end of the grounding pile 1 is an inclined tip, the upper end of the grounding pile 1 is welded with a mounting tube 2, and both sides of the mounting tube 2 are provided with placement grooves 3. A copper column 4 is installed through the inside of the mounting tube 2, and the copper column 4 is connected to the inner wall of the grounding pile 1. A plurality of card slots 11 are provided on the grounding pile 1, and a plurality of copper side columns 12 are welded on the copper column 4. The copper side columns 12 are embedded in the plurality of card slots 11, and the upper end of the copper column 4 A lower bearing plate 5 is welded, and the lower bearing plate 5 is embedded and installed in the installation tube 2. Upper clamping plates 8 are clamped on both sides of the upper end of the lower bearing plate 5. Multiple dislocated folding plates 6 are welded on the lower bearing plate 5 and the upper clamping plate 8. A wire groove 7 is opened on the folding plate 6. The grounding wire 9 is clamped in the wire groove 7 of the multiple dislocated clamped folding plates 6. The installation tube 2 is threadedly connected with a top cover 13. The L-shaped cross-section of the grounding pile 1 is conveniently inserted into the foundation with the inclined tip. Multiple groups of grounding piles 1 are inserted into the foundation at multiple points. The lower bearing is carried out on the installation tube 2 at the upper end of the grounding pile 1. The installation of the plate 5, the upper card plate 8 is clamped on the lower support plate 5, and the upper card plate 8 and the lower support plate 5 are welded with dislocated folding plates 6. The wire groove 7 in the folding plate 6 is used to clamp the grounding wire 9. When the grounding wire 9 is placed between the lower support plate 5 and the upper card plate 8, the exposed part of the grounding wire 9 is folded and clamped between multiple dislocated folding plates 6. The grounding wire 9 is clamped in the placement groove 3. The installation and connection are fast and convenient. The grounding wire 9 is connected to the copper column 4. The other end of the grounding wire 9 is connected to the metal shell of the electrical cabinet. The multiple copper side columns 12 are used for tip discharge, and the overall resistance is reduced by the copper column 4 and the copper side column 12, so as to reduce the overall resistance of the device. The grounding wire 9 is connected in series with the multiple grounding piles 1 at multiple points. The overall resistance of the device is small, and the number of overall connections of the grounding piles 1 can be reduced, so that the overall requirement of less than 4 ohms can be achieved. A top cover 13 is threadedly connected to the mounting tube 2, and the top cover 13 closes the upper end opening of the mounting tube 2 to protect the internal components. At the same time, the top cover 13 facilitates the operation of assisting the hammer to vertically smash down and insert into the foundation, and the use effect is good.

[0024] Preferably, Figure 2 As shown, the placement groove 3 is a square groove, and the width of the placement groove 3 is greater than the diameter of the grounding wire 9. The square groove placement groove 3 is convenient for placing the grounding wire 9 on both sides, making the grounding wire 9 easy to place.

[0025] Preferably, Figure 2 and Figure 4 As shown, the wire groove 7 is arc-shaped and is arranged in the middle position of the folding plate 6. The arc-shaped wire groove 7 in the middle of the folding plate 6 is convenient for positioning the grounding wire 9, allowing multiple folding plates 6 to be staggered, folded and pressed against the grounding wire 9, allowing the grounding wire 9 to be installed quickly and stably without any false connection.

[0026] Preferably, Figure 1 and Figure 2As shown, one end of the grounding wire 9 is connected to a terminal block 10, on which a connection hole is provided. The terminal block 10 to which one end of the grounding wire 9 is connected is provided with a connection hole, and is connected to the metal casing of the electrical cabinet with bolts, so that installation and connection are convenient.

[0027] Preferably, Figure 1 As shown, the edge of the top cover 13 is connected to multiple anti-slip protrusions, and the upper end of the top cover 13 is connected to a protective plate 14. The edge of the top cover 13 is connected to multiple anti-slip protrusions to increase friction, and the protective plate 14 connected to the top cover 13 increases the force strength to avoid deformation during the hammering process.

[0028] Preferably, Figure 2 and Figure 3 As shown, side ears 15 are welded on both sides of the mounting tube 2, and a fixing rod 16 is installed through the side ears 15. The upper end of the fixing rod 16 is connected to an identification column 17. The side ears 15 welded on both sides of the mounting tube 2 are penetrated by the fixing rod 16, and the fixing rod 16 is inserted into the foundation, and auxiliary fixation is performed by the fixing rods 16 on both sides. At the same time, the identification column 17 on the fixing rod 16 is used to mark the foundation point for easy identification.

[0029] Preferably, Figure 1 As shown, a plurality of reinforcing ribs 18 are welded on the outer side of the grounding pile 1 , and the plurality of reinforcing ribs 18 are evenly distributed on the outer side of the grounding pile 1 . A plurality of evenly distributed reinforcing ribs 18 are welded on the outer side of the grounding pile 1 for strengthening connection, thereby ensuring the overall strength of the grounding pile 1 .

[0030] The working principle of the utility model is as follows: the other end of the grounding wire 9 is connected to the metal shell of the electrical cabinet, the L-shaped cross-section of the grounding pile 1 cooperates with the inclined tip to facilitate insertion into the foundation, multiple groups of grounding piles 1 are inserted into the foundation at multiple points, the installation tube 2 at the upper end of the grounding pile 1 is used to install the lower support plate 5, an upper clamping plate 8 is clamped on the lower support plate 5, and dislocated folding plates 6 are welded on the upper clamping plate 8 and the lower support plate 5. The wire groove 7 in the folding plate 6 is used to clamp the grounding wire 9, and the grounding wire 9 is placed between the lower support plate 5 and the upper clamping plate 8. The exposed part of the grounding wire 9 is folded and clamped between the multiple dislocated folding plates 6, and the grounding wire 9 is clamped. It is connected in the placement groove 3, and the installation and connection are fast and convenient. The grounding wire 9 is connected to the copper column 4. The multiple copper side columns 12 on the copper column 4 perform tip discharge. The overall resistance is reduced by the copper column 4 and the copper side columns 12. The overall resistance of the device is reduced. The grounding wire 9 is connected in series with multiple grounding piles 1 at multiple points. The overall resistance of the device is small, and the overall connection number of the grounding piles 1 can be reduced to meet the overall requirement of less than 4 ohms. A top cover 13 is threadedly connected to the installation tube 2. The top cover 13 closes the upper end opening of the installation tube 2 to protect the internal components. At the same time, the top cover 13 facilitates the operation of assisting the hammer to vertically smash down and insert into the foundation, and the use effect is good.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electrical cabinet grounding device, comprising a grounding pile (1) and a grounding wire (9), characterized in that: The grounding pile (1) has an L-shaped cross-section, the bottom end of the grounding pile (1) is an inclined tip, a mounting tube (2) is welded to the top end of the grounding pile (1), placement grooves (3) are provided on both sides of the mounting tube (2), a copper column (4) is installed through the inside of the mounting tube (2), the copper column (4) is closely connected to the inner wall of the grounding pile (1), a plurality of slots (11) are provided on the grounding pile (1), a plurality of copper side columns (12) are welded to the copper column (4), and the copper side columns (12) are embedded in the plurality of slots. (11), a lower support plate (5) is welded to the upper end of the copper column (4), the lower support plate (5) is embedded and installed in the installation tube (2), upper clamping plates (8) are clamped on both sides of the upper end of the lower support plate (5), a plurality of offset folding plates (6) are welded on the lower support plate (5) and the upper clamping plate (8), a wire groove (7) is opened on the folding plate (6), the grounding wire (9) is clamped in the wire groove (7) of the plurality of offset clamped folding plates (6), and a top cover (13) is connected to the internal thread of the installation tube (2).

2. The electrical cabinet grounding device according to claim 1, characterized in that: The placement groove (3) is a square groove, and the width of the placement groove (3) is greater than the diameter of the grounding wire (9).

3. The electrical cabinet grounding device according to claim 1, characterized in that: The wire groove (7) is arc-shaped and is arranged in the middle of the folding plate (6).

4. The electrical cabinet grounding device according to claim 1, characterized in that: One end of the grounding wire (9) is connected to a wiring board (10), and a connection hole is provided on the wiring board (10).

5. The electrical cabinet grounding device according to claim 1, characterized in that: The edge of the top cover (13) is connected to a plurality of anti-slip protrusions, and the upper end of the top cover (13) is connected to a protective plate (14).

6. The electrical cabinet grounding device according to claim 1, characterized in that: Side ears (15) are welded on both sides of the installation tube (2), a fixing rod (16) is installed through the side ears (15), and an identification column (17) is connected to the upper end of the fixing rod (16).

7. The electrical cabinet grounding device according to claim 1, characterized in that: A plurality of reinforcing ribs (18) are welded to the outer side of the grounding pile (1), and the plurality of reinforcing ribs (18) are distributed at equal intervals on the outer side of the grounding pile (1).

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