CN111276830B - An electrical engineering grounding device - Google Patents

Abstract

The invention discloses an electrical engineering grounding device, and mainly relates to the field of electrical engineering. Including insulating bottom plate, insulating bottom plate's middle part is equipped with the lag, be equipped with the electrically conductive screw rod of adjustable length in the lag, the vertical welding in bottom of electrically conductive screw rod has the earthing pole, insulating bottom plate's upside is equipped with the ring carrier, the top of ring carrier is equipped with first electrically conductive cover, electrically conductive connecting block, the electrically conductive cover of second from bottom to top in proper order, be equipped with a plurality of threaded connection hole on the outer wall of electrically conductive connecting block, insulating bottom plate's top is equipped with insulating protection casing, the outside of insulating protection casing is equipped with the terminal box, be equipped with the wiring row in the terminal box, the one end of wiring row is equipped with the wire, the one end that the wiring row. The invention has the beneficial effects that: the coating has the advantages of rust resistance, long service life, small damage to indoor ground, convenient expansion and convenient use.

Description

An electrical engineering grounding device

technical field

The invention relates to the field of electrical engineering, in particular to an electrical engineering grounding device.

Background technique

In order to improve the safety of electrical equipment, it is necessary to ground the electrical equipment. Most of the existing grounding devices use a metal rod as the grounding electrode. After the grounding electrode is vertically driven into the ground, the flat steel is buried as a horizontal connection line. Then, the flat steel and the grounding electrode are welded together, and then the electrical equipment and the flat steel are connected by wires. When the flat steel is buried, the ground needs to be destroyed, especially when multiple electrical equipment is installed indoors, multiple flat steels may be buried. , And every time the flat steel is buried, the ground needs to be destroyed, which is extremely inconvenient, and the grounding electrode is easily rusted at the boundary between the ground and the air, which affects the service life of the grounding device.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problems existing in the prior art, and to provide an electrical engineering grounding device that can prevent rust, have a long service life, little damage to the ground, and is easy to expand and use.

The present invention is achieved by the following technical solutions in order to achieve the above object:

An electrical engineering grounding device comprises an insulating base plate, a protective sleeve is arranged in the middle of the insulating base plate, the protective sleeve vertically penetrates the insulating base plate, a conductive screw rod is arranged in the protective sleeve, and the outer diameter of the conductive screw rod is smaller than that of the protective sleeve. The inner diameter of the sleeve, the upper and lower ends of the protective sleeve are provided with elastic thread plugs suitable for the conductive screw, the bottom of the conductive screw is vertically welded with a grounding electrode, and the upper side of the insulating base plate is provided with an annular bracket, The protective sleeve is located inside the annular support, the bottom end of the annular support is in contact with the insulating bottom plate, and the top of the annular support is sequentially provided with a first conductive sleeve, a conductive connection block, and a second conductive sleeve from bottom to top, so The top of the first conductive sleeve and the bottom of the second conductive sleeve are provided with conductive rings, the first conductive sleeve and the second conductive sleeve are both threadedly connected with the conductive screw, and the middle of the conductive connection block is provided with a conductive screw. The bottom end of the conductive connection block is in contact with the conductive ring on the first conductive sleeve, and the top end is in contact with the conductive ring on the second conductive sleeve. The outer wall of the conductive connection block is provided with several There are threaded connection holes, the top of the insulating base plate is provided with an insulating protective cover, the insulating protective cover is detachably connected to the insulating base plate, and the insulating protective cover is provided with a socket corresponding to the threaded connection hole. A detachable insulating plug is arranged in the hole, a junction box is arranged on the outer side of the insulating protective cover, and a junction box is arranged in the junction box, and one end of the wiring bar is provided with a wire, and the end of the wire is far away from the wiring bar The end of the wire extending out of the junction box is provided with a threaded terminal adapted to the screw connection hole, and the top of the terminal block is provided with a plurality of terminal blocks extending out of the junction box.

Preferably, anchor bolts are provided on the insulating bottom plate.

Preferably, the top of the insulating bottom plate is provided with an annular groove adapted to the annular support.

Preferably, the top of the annular support is provided with a positioning column, and the conductive connection block is provided with a positioning hole adapted to the positioning column.

Preferably, the insulating plug is an elastic plug, and a suspending rope is provided on the insulating plug, and one end of the suspending rope away from the insulating plug is fixed on the insulating protective cover.

Preferably, the connection terminal comprises a threaded barrel welded on the terminal block, a connection ring is welded on the top of the threaded barrel, the connection ring is embedded on the outer wall of the junction box, and a threaded rod is arranged in the threaded barrel, so The top of the threaded rod is provided with a pressing block.

Preferably, the shapes of the first conductive sleeve and the second conductive sleeve are both in the shape of a hexagonal prism.

Compared with the prior art, the beneficial effects of the present invention are:

In the invention, the protective sleeve is used to protect the conductive screw at the boundary between the ground and the air, the elastic thread plug is used to prevent water vapor from entering the protective sleeve, the corrosion of the conductive screw at the boundary between the ground and the air can be prevented, and the service life can be guaranteed; When the ground electrode is inserted into the ground, the ground is only damaged, and the damage to the indoor ground is small; the electrical equipment is electrically connected to the terminal on the junction box, one junction box can be connected to multiple electrical equipment, and the conductive connection block passes through the first conductive The sleeve, the second conductive sleeve and the conductive screw are electrically connected, and the capacity can be expanded by connecting to different numbers of junction boxes. There is no need to bury the flat steel, and the indoor ground will not be damaged. The connection block is screwed for easy connection; sealing the jack with an insulating plug can prevent water vapor from entering the insulating protective cover and prevent the conductive connecting block, the first conductive sleeve, the second conductive sleeve and other components in the insulating protective cover from rusting to ensure the connection. reliable and safe to use.

Description of drawings

Accompanying drawing 1 is the structural representation of the present invention;

Figure 2 is a schematic diagram of the internal structure of the junction box.

Numerals in the drawings: 1, insulating bottom plate; 2, protective sleeve; 3, conductive screw; 4, elastic thread plug; 5, grounding electrode; 6, annular support; 7, first conductive sleeve; 8, conductive connection block; 9 , second conductive sleeve; 10, conductive ring; 11, threaded connection hole; 12, insulating protective cover; 13, insulating plug; 14, junction box; 15, terminal block; 16, wire; 17, threaded terminal; 18, Terminal; 19, anchor bolt; 20, positioning column; 21, hanging rope; 22, threaded barrel; 23, connecting ring; 24, threaded rod; 25, pressure block.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the teaching content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

Example: As shown in Figures 1-2, the present invention is an electrical engineering grounding device, including an insulating base plate 1. In order to improve the stability of the present invention in use, the insulating base plate 1 is provided with at least four The anchor bolts 19 fix the insulating base plate 1 on the ground through the anchor bolts 19, which can prevent the insulating base plate 1 from sliding and ensure the stability during use. The middle part of the insulating base plate 1 is provided with a protective sleeve 2, and an integrated structure is adopted between the protective sleeve 2 and the insulating base plate 1, the protective sleeve 2 vertically penetrates the insulating base plate 1, and the bottom end of the protective sleeve 2 is connected to the bottom surface of the insulating base plate 1. The distance between them is not less than 5cm. When in use, the bottom end of the protective sleeve 2 is inserted into the ground, and the protective sleeve 2 is used to protect the conductive screw 3 at the boundary between the ground and the air. The protective sleeve 2 is provided with a conductive screw 3. The outer diameter of the conductive screw 3 is smaller than the inner diameter of the protective sleeve 2. The upper and lower ends of the protective sleeve 2 are inlaid with elastic thread plugs suitable for the conductive screw 3. 4. The elastic threaded plug 4 is provided with a threaded through hole suitable for the conductive screw 3. The elastic threaded plug 4 is used to prevent water vapor from entering the protective sleeve 2, which can prevent the conductive screw 3 from rusting at the boundary between the ground and the air, ensuring the use of life and safety. The bottom of the conductive screw 3 is vertically welded with a grounding electrode 5 . After the grounding electrode 5 is inserted into the ground, the protective sleeve 2 on the insulating base plate 1 is installed on the conductive screw 3 on the top of the grounding electrode 5 . The upper side of the insulating base plate 1 is provided with an annular support 6, which is composed of a support cylinder and a ring welded on the top of the support cylinder. The protective sleeve 2 is located inside the annular support 6, and the bottom end of the annular support 6 is Abutting with the insulating base plate 1, in order to prevent the annular support 6 from sliding, the top of the insulating base plate 1 is provided with an annular groove that is compatible with the annular support 6, and the bottom end of the annular support 6 is clamped into the annular groove to prevent the annular groove. Slot 6 slides. The top of the annular support 6 is sequentially provided with a first conductive sleeve 7 , a conductive connection block 8 , and a second conductive sleeve 9 , and the top of the first conductive sleeve 7 and the bottom of the second conductive sleeve 9 are both provided with There is a conductive ring 10 , and the conductive ring 10 is used to increase the contact area between the first conductive sleeve 7 , the second conductive sleeve 9 and the conductive connection block 8 . The first conductive sleeve 7 and the second conductive sleeve 9 are both threadedly connected to the conductive screw 3 , the middle of the conductive connection block 8 is provided with a through hole suitable for the conductive screw 3 , and the bottom end of the conductive connection block 8 Abut with the conductive ring 10 on the first conductive sleeve 7, the top end is in contact with the conductive ring 10 on the second conductive sleeve 9, screw down the first conductive sleeve 7, the second conductive sleeve 7 presses the ring support 6, and then Tighten the second conductive sleeve 9, and the second conductive sleeve 9 presses the conductive connection block 8, so that the conductive connection block 8 is in close contact with the conductive ring 10 on the top of the first conductive sleeve 7 and the bottom of the second conductive sleeve 9 to ensure electrical connection. reliability. Preferably, in order to facilitate adjustment of the positions of the first conductive sleeve and the second conductive sleeve, the first conductive sleeve 7 and the second conductive sleeve 9 are both in the shape of a hexagonal prism, which is convenient for using a wrench to rotate the first conductive sleeve 7 and the second conductive sleeve. Two conductive sleeves 9. The outer wall of the conductive connection block 8 is provided with a number of threaded connection holes 11, the top of the insulating base plate 1 is provided with an insulating protective cover 12, the insulating protective cover 12 is detachably connected to the insulating bottom plate 1, and the insulating protective cover 12 It is used to protect the components inside the insulating shield 12 and prevent corrosion. The depth of the conductive screw 3 inserted into the ground can be adjusted by removing the insulating shield 12 . The outer wall of the insulating protective cover 12 is provided with a socket corresponding to the threaded connection hole 11, and a detachable insulating plug 13 is arranged in the socket. The insulating plug 13 is used to close the socket to prevent water vapor from entering the insulating protection. In the cover 12 , the conductive connection block 8 , the first conductive sleeve 7 , the second conductive sleeve 9 and other components in the insulating protective cover 12 are prevented from being corroded, so as to ensure reliable connection and safe use. Preferably, in order to prevent the loss of the insulating plug, the insulating plug 13 is an elastic plug, and the insulating plug 13 is provided with a suspending rope 21 , and one end of the suspending rope 21 away from the insulating plug 13 is fixed on the insulating protective cover 12 . The outer side of the insulating protective cover 12 is provided with a junction box 14, and the junction box 14 is provided with a terminal block 15, one end of the terminal block 15 is provided with a wire 16, and the wire 16 extends away from one end of the terminal block 15. The junction box 14, and the end of the wire 16 away from the terminal block 15 is provided with a threaded terminal 17 adapted to the threaded connection hole 11. Preferably, in order to prevent the conductive connection block from rotating and ensure that the threaded terminal is accurately inserted into the threaded connection hole, the top of the annular support 6 is provided with a positioning column 20, and the conductive connection block 8 is provided with a positioning column 20 adapted to positioning hole. The top of the terminal block 15 is provided with a plurality of terminal blocks 18 extending out of the terminal box 14. The housing of the electrical equipment is electrically connected to the terminal blocks 18 on the terminal box 14. One terminal box 14 can be connected to multiple terminals. For each electrical device, the conductive connection block 8 is electrically connected between the first conductive sleeve 7, the second conductive sleeve 9 and the conductive screw 3, and is expanded by connecting a different number of junction boxes 14, which is convenient for expansion; further, in order to To facilitate the connection between the electrical equipment and the terminal, the terminal 18 includes a threaded barrel 22 welded on the terminal block 15, the top of the threaded barrel 22 is welded with a connecting ring 23, and the connecting ring 23 is embedded in the junction box On the outer wall of 14, a threaded rod 24 is provided in the threaded cylinder 22, and a pressing block 25 is provided on the top of the threaded rod 24.

When using, first insert the grounding electrode 5 into the ground to ensure that the top of the grounding electrode 5 is located underground, and then install the insulating base plate 1 on the conductive screw 3 on the top of the grounding electrode 5; when installing the insulating base plate 1, put 2 protective sleeves On the conductive screw 3, rotate the insulating base plate 1 so that the insulating base plate 1 is in contact with the ground, and the bottom end of the protective sleeve 2 is inserted into the ground; then use the anchor bolts 19 to fix the insulating base plate 1 on the ground to prevent the insulating base plate 1 from sliding or sliding. Rotate; at this time, the grounding electrode 5 is not in contact with the outside air, and the protective sleeve 2 can protect the lead screw 3, can prevent the conductive screw 3 from rusting at the boundary between the ground and the air, and can ensure the service life; then the first conductive The sleeve 7, the conductive connection block 8, and the second conductive sleeve 9 are sequentially installed on the conductive screw 3, and the conductive connection block 8 is clamped by the first conductive sleeve 7 and the second conductive sleeve 9. According to the number of electrical equipment that needs to be grounded, equipped with A certain number of junction boxes, the junction box can be directly placed on the ground, only when the ground electrode is inserted into the ground, the ground is damaged, and the damage to the indoor ground is small. By connecting different numbers of junction boxes to expand the capacity, there is no need to bury the flat steel, and the indoor ground will not be damaged, so the capacity expansion is convenient;

Claims (7)

1. An electrical engineering grounding device, comprising an insulating bottom plate (1), characterized in that: a protective cover (2) is provided in the middle of the insulating bottom plate (1), and the protective cover (2) vertically penetrates the insulating bottom plate (1). ), a conductive screw (3) is provided in the protective sleeve (2), the outer diameter of the conductive screw (3) is smaller than the inner diameter of the protective sleeve (2), and the upper and lower ends of the protective sleeve (2) are provided with There is an elastic threaded plug (4) adapted to the conductive screw (3), the bottom of the conductive screw (3) is vertically welded with a ground electrode (5), and the upper side of the insulating base plate (1) is provided with an annular support (6), the protective cover (2) is located inside the annular support (6), the bottom end of the annular support (6) is in contact with the insulating bottom plate (1), and the top of the annular support (6) is from bottom to bottom. A first conductive sleeve (7), a conductive connection block (8), and a second conductive sleeve (9) are arranged on the top of the first conductive sleeve (7) in sequence, and the top of the first conductive sleeve (7) and the bottom of the second conductive sleeve (9) are provided with There is a conductive ring (10), the first conductive sleeve (7) and the second conductive sleeve (9) are both threadedly connected to the conductive screw (3), and the middle of the conductive connection block (8) is provided with a conductive screw ( 3) Suitable through holes, the bottom end of the conductive connection block (8) is in contact with the conductive ring (10) on the first conductive sleeve (7), and the top end is in contact with the conductive ring on the second conductive sleeve (9) (10) Abutting, the outer wall of the conductive connection block (8) is provided with a number of threaded connection holes (11), the top of the insulating bottom plate (1) is provided with an insulating protective cover (12), the insulating protective cover (12) The cover (12) is detachably connected to the insulating bottom plate (1), the insulating protective cover (12) is provided with an insertion hole corresponding to the threaded connection hole (11), and a detachable insulating plug is arranged in the insertion hole (13), a junction box (14) is provided on the outer side of the insulating protective cover (12), a wiring block (15) is provided in the junction box (14), and one end of the wiring block (15) is provided with a wire (16), one end of the wire (16) away from the terminal block (15) protrudes from the terminal box (14), and one end of the wire (16) away from the terminal block (15) is provided with a screw connection hole (11) adapted to The threaded terminal (17) of the terminal block (15) is provided with a plurality of terminal blocks (18) protruding from the terminal box (14) on the top of the terminal block (15). 2 . The electrical engineering grounding device according to claim 1 , wherein the insulating base plate ( 1 ) is provided with anchor bolts ( 19 ). 3 . 3 . The electrical engineering grounding device according to claim 1 , wherein the top of the insulating base plate ( 1 ) is provided with an annular groove adapted to the annular support ( 6 ). 4 . 4. An electrical engineering grounding device according to claim 1, characterized in that: the top of the annular support (6) is provided with a positioning column (20), and the conductive connection block (8) is provided with a positioning column (20). Locating holes adapted to the column (20). 5 . The electrical engineering grounding device according to claim 1 , wherein the insulating plug ( 13 ) is an elastic plug, and the insulating plug ( 13 ) is provided with a hanging rope ( 21 ), and the The end of the suspending rope (21) away from the insulating plug (13) is fixed on the insulating protective cover (12). 6. An electrical engineering grounding device according to claim 1, characterized in that: the terminal (18) comprises a threaded barrel (22) welded on the terminal block (15), and the threaded barrel (22) A connecting ring (23) is welded on the top of the junction box (23), and the connecting ring (23) is embedded on the outer wall of the junction box (14). ) is provided with a pressing block (25). 7 . The electrical engineering grounding device according to claim 1 , wherein the first conductive sleeve ( 7 ) and the second conductive sleeve ( 9 ) are both in the shape of a hexagonal prism. 8 .

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