Grounding device for civil building electrical equipment

Abstract

The utility model belongs to the technical field of civil building electrical equipment, and particularly relates to a grounding device for civil building electrical equipment, which comprises a protection box and a grounding wire, the interior of the protection box is divided into a wiring cavity and a grounding cavity, and the wiring cavity is sequentially provided with a connecting cap, a wire holder and a guide wheel from top to bottom; the wire fixing device is composed of a positioning sleeve, a clamping sleeve and a closing sleeve, wherein the clamping sleeve is located in the positioning sleeve. The top of the grounding cavity is buckled with a protective cover, the bottom of the grounding cavity is filled with a cement block, a plurality of grounding grooves penetrating through the bottom of the protective box are formed in the cement block, grounding rods are arranged in the grounding grooves, and the grounding wire sequentially penetrates through a connecting cap, a wire fixing device and a guide wheel to be connected with the grounding rods. The side, located above the cement block, of the grounding cavity is provided with a drainage pipe. The utility model is safe and reliable.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrical equipment in civil buildings, and specifically relates to a grounding device for electrical equipment in civil buildings. Background Technology

[0002] In the use of electrical equipment in civil buildings, grounding devices play a crucial role in ensuring the safety of electrical equipment during operation and preventing electric shock accidents caused by faults such as leakage.

[0003] In most existing grounding devices, the grounding rod is directly connected to the grounding wire during use. During this process, the grounding wire is usually taut, which means that the grounding rod buried underground is always under tension. The grounding wire is not securely fixed and is prone to loosening. In addition, since the grounding part of the existing grounding device is underground for a long time, it is easily corroded by the external environment, which affects the grounding effect and makes maintenance inconvenient. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing grounding devices are not securely fixed during use, making them prone to loosening, and the grounding part is underground for extended periods, making maintenance inconvenient.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is a grounding device for electrical equipment in civil buildings, including a protective box and a grounding wire. The interior of the protective box is divided into a wiring cavity and a grounding cavity. The wiring cavity is provided with a connecting cap, a wire stabilizer and a guide wheel from top to bottom.

[0006] The line setter consists of a positioning sleeve, a clamping sleeve, and a closing sleeve. The clamping sleeve is located inside the positioning sleeve. Above the clamping sleeve are multiple outwardly opening plates. The bottom inner side of the closing sleeve is provided with a convergence opening that matches the shape of the top of the plates. The closing sleeve and the clamping sleeve are connected by threads.

[0007] The top of the grounding cavity is fitted with a protective cover, and the bottom is filled with cement blocks. Multiple grounding grooves penetrating the bottom of the protective box are provided on the cement blocks. Grounding rods are provided inside the grounding grooves. The grounding wire passes through the connecting cap, the locator and the guide wheel in sequence and is connected to the grounding rods. A drain pipe is provided on the side of the grounding cavity above the cement blocks.

[0008] As a preferred embodiment of this utility model, the bottom outer side of the connecting cap is connected to the upper part of the wiring cavity by a thread, and the upper diameter of the connecting cap is larger than the inner diameter of the wiring cavity.

[0009] As a preferred embodiment of this utility model, a support ring is provided inside the wiring cavity below the positioning sleeve, and multiple positioning blocks are provided at the upper edge of the support ring. A corresponding positioning ring is provided above the positioning sleeve at the multiple positioning blocks, and the positioning ring is fixedly connected to the multiple positioning blocks by a first bolt.

[0010] As a preferred embodiment of this utility model, the positioning sleeve has an internal placement cavity that matches the shape of the clamping sleeve, and the outer diameter of the tight-fitting sleeve matches the inner diameter of the placement cavity. The clamping plate and the aggregation port are both tapered inclined structures, and the inner diameter of the positioning sleeve matches the inner diameter of the grounding wire.

[0011] As a preferred technical solution of this utility model, the fastening point between the protective cover and the grounding cavity is a stepped structure, and the four corners of the protective cover are fixedly connected to the grounding cavity by multiple second bolts.

[0012] As a preferred embodiment of this utility model, the top of the grounding groove is fitted with a sealing cover, and the sealing cover is made of one of rubber, silicone or nylon.

[0013] As a preferred embodiment of this utility model, the grounding rod is divided into an anode metal rod and multiple cathode metal rods, wherein the grounding wire is connected to the anode metal rod, and the diameter and length of the cathode metal rods are smaller than those of the anode metal rods.

[0014] As a preferred technical solution of this utility model, the anode metal rod is composed of a terminal cap and a rod body, wherein the grounding wire passes through the terminal cap and is fixed, the bottom of the terminal cap is fixedly connected to the top of the rod body by a thread, and the grounding groove where the anode metal rod is located is connected to the terminal cavity.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1. This grounding device, through the unique structure of the grounding wire stabilizer, can firmly fix the grounding wire, reduce the tension of the grounding wire on the grounding rod, reduce the relationship between the tautness of the grounding wire and the grounding rod, avoid electrical faults such as poor contact caused by loose grounding wire, and improve grounding reliability;

[0017] 2. This grounding device reduces the erosion of internal grounding components by external environmental factors through the design of the protective box and various sealing and protective components, such as protective covers and sealing covers. By setting up an anode metal rod and a cathode metal rod, the cathode metal rod forms a conductive circuit with the anode metal rod underground, preferentially corroding the cathode metal rod, thereby delaying the corrosion of the underground end of the anode metal rod, extending the service life of the device, and the threaded structure facilitates the replacement of the anode metal rod.

[0018] 3. The drainage pipe installed inside the grounding cavity of this grounding device promptly drains accumulated water, maintains a stable grounding environment, further ensures the grounding effect, and guarantees the electrical safety of electrical equipment in civil buildings. Attached Figure Description

[0019] Figure 1 This is an external structural diagram of a grounding device for electrical equipment in civil buildings according to the present invention.

[0020] Figure 2 This is a structural diagram of the internal structure of the grounding cavity of a grounding device for electrical equipment in civil buildings according to this utility model.

[0021] Figure 3 This is a cross-sectional three-dimensional structural diagram of a grounding device for electrical equipment in civil buildings according to the present invention.

[0022] Figure 4 This is an enlarged view of point A of the grounding device for electrical equipment in civil buildings according to this utility model.

[0023] As shown in the figure:

[0024] 1. Protective box; 2. Grounding wire; 3. Wiring cavity; 4. Grounding cavity; 5. Connecting cap; 6. Line setter; 7. Guide wheel; 8. Positioning sleeve; 9. Clamping sleeve; 10. Tightening sleeve; 11. Clamping plate; 12. Converging port; 13. Protective cover; 14. Cement block; 15. Grounding groove; 16. Grounding rod; 17. Drain pipe; 18. Support ring; 19. Positioning block; 20. Positioning ring; 21. First bolt; 22. Placement cavity; 23. Second bolt; 24. Sealing cover; 25. Anode metal rod; 26. Cathode metal rod; 27. Wiring cap; 28. Rod body. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0027] As per the instruction manual Figure 1-3 As shown, a grounding device for electrical equipment in civil buildings includes a protective box 1 and a grounding wire 2. The interior of the protective box 1 is divided into a wiring cavity 3 and a grounding cavity 4. The wiring cavity 3 is provided with a connecting cap 5, a wire setter 6 and a guide wheel 7 from top to bottom. The bottom outer side of the connecting cap 5 is connected to the top of the wiring cavity 3 by a thread, and the upper diameter of the connecting cap 5 is larger than the inner diameter of the wiring cavity 3.

[0028] In this utility model, a protective cover 13 is fastened to the top of the grounding cavity 4, and a cement block 14 is filled at the bottom. The fastening between the protective cover 13 and the grounding cavity 4 is a stepped structure, and the four corners of the protective cover 13 are fixedly connected to the grounding cavity 4 by multiple second bolts 23. Multiple grounding grooves 15 penetrating the bottom of the protective box 1 are provided on the cement block 14. A sealing cover 24 is fastened to the top of the grounding groove 15, and the sealing cover 24 is made of rubber, silicone or nylon. A grounding rod 16 is provided inside the grounding groove 15. The grounding wire 2 passes through the connecting cap 5, the locator 6 and the guide wheel 7 in sequence and is connected to the grounding rod 16. A drain pipe 17 is provided on the side of the grounding cavity 4 above the cement block 14.

[0029] In this utility model, the grounding rod 16 is divided into an anode metal rod 25 and multiple cathode metal rods 26. The grounding wire 2 is connected to the anode metal rod 25, and the diameter and length of the cathode metal rods 26 are smaller than those of the anode metal rod 25. The anode metal rod 25 is composed of a terminal cap 27 and a rod body 28. The grounding wire 2 passes through the terminal cap 27 and is fixed. The bottom of the terminal cap 27 is fixedly connected to the top of the rod body 28 by a thread. The grounding groove 15 where the anode metal rod 25 is located is connected to the wiring cavity 3.

[0030] As per the instruction manual Figure 4 As shown, the line setter 6 is composed of a positioning sleeve 8, a clamping sleeve 9 and a closing sleeve 10. The clamping sleeve 9 is located inside the positioning sleeve 8. Above the clamping sleeve 9 are multiple outwardly opening clamping plates 11. The bottom inner side of the closing sleeve 10 is provided with a convergence opening 12 that matches the top shape of the clamping plates 11. The closing sleeve 10 and the clamping sleeve 9 are connected by threads.

[0031] In this utility model, a support ring 18 is provided inside the wiring cavity 3 below the positioning sleeve 8, and multiple positioning blocks 19 are provided at the upper edge of the support ring 18. A corresponding positioning ring 20 is provided above the positioning sleeve 8 at the multiple positioning blocks 19. The positioning ring 20 and the multiple positioning blocks 19 are fixedly connected by a first bolt 21.

[0032] In a specific implementation of this utility model, the positioning sleeve 8 is fixed in a suitable position in the wiring cavity 3 by the positioning ring 20 and the positioning block 19 on the support ring 18 using the first bolt 21. Then, the grounding wire 2 passes through the connecting cap 5, the tight-fitting sleeve 10, and the clamping sleeve 9 in sequence, and then passes through the placement cavity 22 of the wire setter 6, and passes around the guide wheel 7 to be fixedly connected to the wiring cap 27 in the grounding rod 16 in the grounding cavity 4. By screwing the tight-fitting sleeve 10 into the clamping sleeve 9, the clamping plate 11 clamps the grounding wire 2 under the action of the aggregation port 12, and fixes and limits the grounding wire 2. Then, the connecting cap 5 is threadedly connected to the top of the wiring cavity 3 to complete the sealing of the wiring cavity 3.

[0033] Then insert the grounding rod 16 into the grounding groove 15 and fasten the sealing cover 24 to complete the installation of the grounding rod 16. Finally, align the protective cover 13 with the grounding cavity 4 through the stepped structure and fix them together with the second bolt 23.

[0034] When maintenance is required, the cathode metal rod 26 can be replaced directly, or the wire cap 27 can be unscrewed to separate the wire cap 27 from the rod body 28, and the rod body 28 of the anode metal rod 25 can be replaced.

[0035] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A grounding device for electrical equipment in civil buildings, comprising a protective box and a grounding wire, the interior of the protective box being divided into a wiring cavity and a grounding cavity, characterized in that The wiring cavity is provided with a connecting cap, a wire guide and a guide wheel from top to bottom; the wire guide is composed of a positioning sleeve, a clamping sleeve and a closing sleeve. The clamping sleeve is located inside the positioning sleeve. Above the clamping sleeve are multiple outwardly opening plates. The bottom inner side of the closing sleeve is provided with a convergence opening that matches the shape of the top of the plates. The closing sleeve and the clamping sleeve are connected by threads. The top of the grounding cavity is fitted with a protective cover, and the bottom is filled with cement blocks. Multiple grounding grooves penetrating the bottom of the protective box are provided on the cement blocks. Grounding rods are provided inside the grounding grooves. The grounding wire passes through the connecting cap, the locator and the guide wheel in sequence and is connected to the grounding rods. A drain pipe is provided on the side of the grounding cavity above the cement blocks.

2. The grounding device for electrical equipment in civil buildings according to claim 1, characterized in that The bottom outer side of the connector cap is connected to the top of the wiring cavity via a thread, and the top diameter of the connector cap is larger than the inner diameter of the wiring cavity.

3. The grounding device for electrical equipment in civil buildings according to claim 1, characterized in that Inside the wiring cavity, below the positioning sleeve, there is a support ring, and at the upper edge of the support ring, there are multiple positioning blocks. Above the positioning sleeve, at the multiple positioning blocks, there are corresponding positioning rings. The positioning rings and the multiple positioning blocks are fixedly connected by a first bolt.

4. The grounding device for electrical equipment in civil buildings according to claim 1, characterized in that The positioning sleeve has an internal placement cavity that matches the shape of the clamping sleeve, and the outer diameter of the closed sleeve matches the inner diameter of the placement cavity. The clamping plate and the aggregation port are both tapered inclined structures, and the inner diameter of the positioning sleeve matches the inner diameter of the grounding wire.

5. The grounding device for electrical equipment in civil buildings according to claim 1, characterized in that The connection between the protective cover and the grounding cavity is a stepped structure, and the four corners of the protective cover are fixedly connected to the grounding cavity by multiple second bolts.

6. A grounding device for electrical equipment in civil buildings according to claim 1, characterized in that: The grounding rod consists of one anode metal rod and multiple cathode metal rods. The grounding wire is connected to the anode metal rod, and the diameter and length of the cathode metal rods are smaller than those of the anode metal rod. The anode metal rod is composed of a connector cap and a rod body. The grounding wire passes through the connector cap and is fixed. The bottom of the connector cap is fixedly connected to the top of the rod body by a thread. The grounding groove where the anode metal rod is located is connected to the connector cavity.

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