A graphene composite grounding device

Abstract

A graphene composite grounding device includes several graphene composite grounding rods connected end-to-end in a vertical direction. Adjacent graphene composite grounding rods are fixedly connected by a connecting structure. The connecting structure includes an upper connecting body, a lower connecting body, and a connecting sleeve. Each graphene composite grounding rod, from top to bottom, consists of an upper connecting body, a rod body, and a lower connecting body. The upper and lower connecting bodies can be inserted horizontally to form a cylinder coaxial with the rod body, the outer diameter of which is smaller than the rod body. The connecting sleeve is formed by combining and fixing half-sleeves A and B, and is fitted onto the cylinder. The outer circumference of the connecting sleeve is a frustum-shaped cone, larger at the top and smaller at the bottom. The diameter of the bottom surface of the connecting sleeve is equal to the diameter of the rod body, and the diameter of the top surface of the connecting sleeve is larger than the diameter of the rod body. This grounding device, through its simple and easy-to-operate connecting structure, makes the connection between graphene composite grounding rods time-saving and labor-saving, while also ensuring a good connection effect and preventing loosening.

Description

Technical Field

[0001] This invention relates to the field of grounding rod technology, and more specifically to a graphene composite grounding device. Background Technology

[0002] Grounding refers to the connection between the exposed conductive parts of a power system and electrical installations / equipment and the earth via a conductor. It can be divided into functional grounding, lightning protection grounding, and protective grounding. Graphene composite grounding material is a new type of grounding material that has been introduced to the market in recent years. It involves the incorporation of graphene, copper, silver, and other metals into the grounding rod through high-temperature expansion. Due to its advantages such as convenient construction, small excavation area, and significant resistance reduction effect, graphene composite grounding devices are currently widely used in some transmission and distribution network renovation projects.

[0003] Graphene composite grounding materials are mainly divided into two categories: horizontal grounding electrodes and vertical grounding electrodes. The conductors of graphene composite grounding materials are connected using graphene alloy clamps or thermofusion welding. Graphene horizontal grounding electrodes use graphene alloy connecting wires, with different cross-sectional areas selected based on the line grade and target resistance reduction. The graphene alloy connecting wires are connected using graphene alloy cross connectors or thermofusion welding. When installing graphene composite vertical grounding electrodes, grounding rods need to be driven into the soil using an electric hammer. To ensure the grounding length, multiple grounding rods need to be vertically connected before being driven into the soil. In specific on-site construction, one or more grounding rods are first driven in using an electric hammer, then another grounding rod is connected to the topmost grounding rod driven into the soil, and then the electric hammer is used to continue driving the rods into the soil. There are three main ways to connect existing grounding rods. The first is welding adjacent grounding rods. This method requires on-site welding, which is time-consuming and prone to breakage due to vibration when the electric hammer is driven into the soil. The second method is connecting adjacent grounding rods with threads, where threaded holes and screw heads are respectively set at the ends of the two grounding rods. Although this method greatly simplifies on-site assembly, the vibration generated when driving into the soil can easily cause the connection to loosen and break. The third method is to insert one grounding rod into the insertion hole of another grounding rod through a plug, and the plug and insertion hole need to be interference-fitted. Although this method has good connection strength, the interference fit between the plug and insertion hole also makes on-site construction time-consuming and labor-intensive. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a graphene composite grounding device. This grounding device features a simple and easy-to-operate connection structure, which makes the connection between graphene composite grounding rods both time-saving and labor-saving, while also ensuring a good connection effect and preventing loosening.

[0005] The technical solution of the present invention is as follows:

[0006] A graphene composite grounding device includes several graphene composite grounding rods connected end to end in a vertical direction, and adjacent graphene composite grounding rods are fixedly connected by a connection structure.

[0007] The connection structure includes an upper connector, a lower connector, and a connecting sleeve; the graphene composite grounding rod is composed of an upper connector, a rod body, and a lower connector from top to bottom; the upper connector and the lower connector can be inserted horizontally to form a cylinder coaxial with the rod body, and the outer diameter of the cylinder is smaller than that of the rod body; the connecting sleeve is composed of half-sleeve A and half-sleeve B, which are fixed together and fitted onto the cylinder. The outer circumference of the connecting sleeve is a frustum-shaped cone with a larger diameter at the top and a smaller diameter at the bottom. The diameter of the bottom surface of the connecting sleeve is equal to the diameter of the rod body, and the diameter of the top surface of the connecting sleeve is larger than the diameter of the rod body.

[0008] Furthermore, the diameter of the top surface of the connecting sleeve is 1.1-1.3 times the diameter of the rod.

[0009] Furthermore, a number of insertion rods are provided on the inner side of half-set A, and a number of receiving rods are provided on the inner side of half-set B, the ends of the insertion rods can be inserted into the receiving rods; upper locking holes for the insertion rods to pass through and lower locking holes for the receiving rods to pass through are respectively provided on the upper and lower connecting bodies.

[0010] Furthermore, a sealing gasket is provided between the mating surfaces of half-set A and half-set B.

[0011] Furthermore, the center lines of the upper locking hole and the lower locking hole are parallel to the insertion direction of the upper and lower coupling bodies.

[0012] Furthermore, the upper and lower couplings are configured as serrated edges that can mesh with each other in the horizontal direction.

[0013] Furthermore, a sealing structure is provided between the connecting sleeve and the rod body.

[0014] Furthermore, the sealing structure includes sealing rings disposed in the upper sealing groove and the lower sealing groove, and an upper sealing platform and a lower sealing platform are respectively disposed between the rod body and the upper and lower connecting bodies. The upper sealing platform and the lower sealing platform respectively cooperate with the upper inner hole and the lower inner hole of the connecting sleeve, and the upper sealing groove and the lower sealing groove are respectively disposed on the upper sealing platform and the lower sealing platform.

[0015] Furthermore, several wire grooves are provided on the outer periphery of the connecting sleeve, and the wires are installed in the wire grooves to tighten half-sleeve A and half-sleeve B.

[0016] A method for connecting a graphene composite grounding rod, comprising the following steps:

[0017] S1: Connect the two graphene composite grounding rods horizontally.

[0018] S2: Insert the socket rod of half-set B into the lower locking hole of the lower assembly, so that half-set B is fitted onto the lower assembly;

[0019] S3: Insert the half-set A's insert rod into the upper locking hole of the upper assembly until the end of the insert rod is inserted into the end of the receiving rod;

[0020] S4: Wrap steel wire around the inside of the wire groove to tighten half set A and half set B.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. The present invention discloses a graphene composite grounding device. The grounding device has a simple and easy-to-operate connection structure, which makes the connection between graphene composite grounding rods time-saving and labor-saving, and at the same time has a good connection effect and is not easy to loosen.

[0023] 2. The graphene composite grounding device disclosed in this invention ensures that the grounding rod connection is not connected to the outside world by setting a sealing gasket and sealing ring between the connecting sleeve itself and other related mating parts, thus ensuring that the grounding rod is not affected by the harsh underground environment.

[0024] 3. The method of using a graphene composite grounding device disclosed in this invention further enhances the fastening effect of the connecting sleeve by using steel wire to fasten it around the outer periphery of the connecting sleeve. Attached Figure Description

[0025] The solutions and advantages of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the structure of a graphene composite grounding device according to the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of a graphene composite grounding rod;

[0029] Figure 3 This is a schematic diagram of the connecting sleeve.

[0030] Figure 4 for Figure 3 Top view;

[0031] The components represented by the various reference numerals in the diagram are:

[0032] This invention comprises: 1. Graphene composite grounding rod; 11. Rod body; 12. Upper sealing platform; 121. Upper sealing groove; 13. Upper connecting body; 131. Upper locking hole; 14. Lower sealing platform; 141. Lower sealing groove; 15. Lower connecting body; 151. Lower locking hole; 2. Connecting sleeve; 21. Half-sleeve A; 211. Insert rod; 22. Half-sleeve B; 221. Socket rod; 23. Sealing gasket; 24. Wire groove; 3. Sealing ring; 4. Wire. Detailed Implementation

[0033] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a graphene composite grounding device according to the present invention. In the prior art, the graphene composite grounding device includes several graphene composite grounding rods 1 connected end to end in a vertical direction. During installation, the graphene composite grounding rods 1 need to be driven into the soil using an electric hammer. To ensure the grounding length, multiple grounding rods need to be vertically connected before being driven into the soil. In specific on-site construction, one or more grounding rods are first driven into the soil using an electric hammer, and then another grounding rod is connected to the topmost grounding rod driven into the soil first, and then the electric hammer is used to continue driving it into the soil. The three main connection methods of existing grounding rods all have their disadvantages. For example, welding adjacent grounding rods has disadvantages. On-site welding is required, which is time-consuming and prone to breakage due to vibration when the electric hammer is driven into the soil. Adjacent grounding rods are connected by threads, with threaded holes and screw heads at the ends of the two grounding rods. Although this connection method greatly simplifies on-site assembly, the vibration generated when driving into the soil can easily cause the connection to loosen and break. Adjacent grounding rods are connected by an interference fit. Although this connection method has good connection strength, the interference fit between the plug and the plug hole also makes on-site construction time-consuming and labor-intensive. Therefore, this invention proposes a connection structure for adjacent graphene composite grounding rods 1.

[0034] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 look, Figure 2 This is a schematic diagram of the graphene composite grounding rod. Figure 3 This is a schematic diagram of the connecting sleeve. Figure 4 for Figure 3A top view; the connection structure of the graphene composite grounding rod includes an upper connecting body 13 and a lower connecting body 15 disposed on the upper and lower parts of the graphene composite grounding rod 1, and a connecting sleeve 2 fitted onto the upper connecting body 13 and the lower connecting body 15 of two adjacent graphene composite grounding rods 1; the graphene composite grounding rod 1 is composed of an upper connecting body 13, a rod body 11, and a lower connecting body 15 from top to bottom; the upper connecting body 13 and the lower connecting body 15 can be inserted in the horizontal direction. Specifically, the upper connecting body 13 and the lower connecting body 15 are configured as serrated teeth that can mesh with each other in the horizontal direction. Insertion in the horizontal direction can realize the fixed connection of two adjacent graphene composite grounding rods 1 in the vertical direction after insertion. After insertion, they form a cylinder coaxial with the rod body 11. The two are in clearance fit. Those skilled in the art should design the two to have the smallest possible gap and the tightest possible contact. To further ensure the insertion effect, a graphene-containing adhesive with good conductivity can be applied to the serrated mating surface. To further install the connecting sleeve 2 on its outer periphery, the outer diameter of the cylinder is smaller than that of the rod 11. The purpose of installing the connecting sleeve 2 is to further achieve a fixed connection between two adjacent graphene composite grounding rods 1 in the horizontal direction. The connecting sleeve 2 is composed of half-sleeves A21 and B22, fixed together and fitted onto the cylinder. The outer periphery of the connecting sleeve 2 is a frustum-shaped cone, larger at the top and smaller at the bottom. The diameter of the bottom surface of the connecting sleeve 2 is equal to the diameter of the rod 11, and the diameter of the top surface of the connecting sleeve 2 is larger than the diameter of the rod 11. The frustum-shaped design of the connecting sleeve 2 facilitates its driving into the soil layer. Preferably, the diameter of the top surface of the connecting sleeve 2 is 1.1-1.3 times the diameter of the rod 11. Furthermore, the connecting sleeve 2 and the graphene composite grounding rod 1 are made of the same material.

[0035] Several insertion rods 211 are provided on the inner side of half-set A21, and several receiving rods 221 are provided on the inner side of half-set B22. The ends of the insertion rods 211 can be inserted into the receiving rods 221. The upper connecting body 13 and the lower connecting body 15 are respectively provided with upper locking holes 131 for the insertion rods 211 to pass through and lower locking holes 151 for the receiving rods 221 to pass through. The ends of the insertion rods 211 and the ends of the receiving rods 221 should be in clearance fit. Preferably, the clearance should be designed to be as small as possible. At the same time, the ends of the insertion rods 211 should be made into a pointed shape to facilitate their insertion.

[0036] Furthermore, in order to ensure the sealing of the combined connecting sleeve 2, a sealing gasket 23 is provided between the mating surfaces of half sleeve A21 and half sleeve B22.

[0037] Preferably, the center lines of the upper locking hole 131 and the lower locking hole 151 are parallel to the insertion direction of the upper connector 13 and the lower connector 15.

[0038] To ensure the sealing of the connection structure, a sealing structure is provided between the connecting sleeve 2 and the rod body 11. Specifically, the sealing structure includes sealing rings 3 disposed in the upper sealing groove 121 and the lower sealing groove 141. An upper sealing platform 12 and a lower sealing platform 14 are respectively disposed between the rod body 11 and the upper connecting body 13 and the lower connecting body 15. The upper sealing platform 12 and the lower sealing platform 14 respectively cooperate with the upper inner hole and the lower inner hole of the connecting sleeve 2. The upper sealing groove 121 and the lower sealing groove 141 are respectively disposed on the upper sealing platform 12 and the lower sealing platform 14.

[0039] Furthermore, several wire grooves 24 are provided on the outer periphery of the connecting sleeve 2, and the wires 4 are installed in the wire grooves 24 to tighten the half-sleeve A21 and the half-sleeve B22.

[0040] The present invention discloses a method for using the connection structure of the graphene composite grounding rod 1 in a graphene composite grounding device, comprising the following steps:

[0041] S1: Connect the two graphene composite grounding rods 1 horizontally; at this time, the lower graphene composite grounding rod 1 has been driven into the soil. Place the lower connecting body 15 of the upper graphene composite grounding rod 1 at the upper connecting body 13 of the lower graphene composite grounding rod 1. Move the upper graphene composite grounding rod 1 horizontally so that the lower connecting body 15 engages with the upper connecting body 13. The upper graphene composite grounding rod 1 and the lower graphene composite grounding rod 1 are coaxial. The sealing ring 3 is installed in the upper sealing groove 121 and the lower sealing groove 141 before the two are joined.

[0042] S2: Insert the socket rod 221 of half-set B22 into the lower locking hole 151 of the lower coupling body 15, so that half-set B22 is fitted onto the lower coupling body 15;

[0043] S3: Insert the insertion rod 211 of half-set A21 into the upper locking hole 131 of the upper connector 13 until the end of the insertion rod 211 is inserted into the end of the receiving rod 221. Connect half-set A21 and half-set B22 and place a sealing gasket 23 between the two mating surfaces.

[0044] S4: Wrap the steel wire 4 inside the steel wire groove 24 to tighten half of A21 and half of B22; after tightening, tie a knot in the steel wire 4, and the steel wire 4 and the knot should not protrude from the steel wire groove 24 of the connecting sleeve 2.

[0045] The graphene composite grounding device disclosed in this invention has a simple and easy-to-operate connection structure, which makes the connection between graphene composite grounding rods time-saving and labor-saving, while also ensuring good connection effect and preventing loosening. By setting sealing gaskets and sealing rings between the connecting sleeve itself and other related mating parts, the connection of the grounding rods is not connected to the outside world, ensuring that the grounding rods are not affected by the harsh underground environment.

Claims

1. A graphene composite grounding device, comprising a plurality of graphene composite grounding rods (1) connected end-to-end in a vertical direction, characterized in that, Adjacent graphene composite grounding rods (1) are fixedly connected by a connection structure; The connection structure includes an upper connector (13), a lower connector (15), and a connecting sleeve (2); the graphene composite grounding rod (1) is composed of an upper connector (13), a rod body (11), and a lower connector (15) from top to bottom; the upper connector (13) and the lower connector (15) can be inserted in the horizontal direction, and after insertion, they form a cylinder coaxial with the rod body (11), and the outer diameter of the cylinder is smaller than that of the rod body (11); the connecting sleeve (2) is composed of half a sleeve A (21) and half a sleeve B (22) and is fixed together and fitted on the cylinder. The outer periphery of the connecting sleeve (2) is a frustum-shaped cone with a larger top and a smaller bottom. The diameter of the bottom surface of the connecting sleeve (2) is equal to the diameter of the rod body (11), and the diameter of the top surface of the connecting sleeve (2) is greater than that of the rod body (11); The diameter of the top surface of the connecting sleeve (2) is 1.1-1.3 times the diameter of the rod (11); A plurality of insert rods (211) are provided on the inner side of half-set A (21), and a plurality of receiving rods (221) are provided on the inner side of half-set B (22). The ends of the insert rods (211) can be inserted into the receiving rods (221). Upper locking holes (131) for insert rods (211) to pass through and lower locking holes (151) for receiving rods (221) to pass through are respectively provided on the upper assembly (13) and the lower assembly (15). The upper connector (13) and the lower connector (15) are configured as serrated teeth that can mesh with each other in the horizontal direction; The sealing structure includes a sealing ring (3) disposed in the upper sealing groove (121) and the lower sealing groove (141). An upper sealing platform (12) and a lower sealing platform (14) are respectively disposed between the rod body (11) and the upper connecting body (13) and the lower connecting body (15). The upper sealing platform (12) and the lower sealing platform (14) respectively cooperate with the upper inner hole and the lower inner hole of the connecting sleeve (2). The upper sealing groove (121) and the lower sealing groove (141) are respectively disposed on the upper sealing platform (12) and the lower sealing platform (14). Several wire grooves (24) are provided on the outer periphery of the connecting sleeve (2). The wire (4) is installed in the wire groove (24) to tighten half-set A (21) and half-set B (22).

2. The graphene composite grounding device according to claim 1, characterized in that, A sealing gasket (23) is provided between the joint surfaces of half-set A (21) and half-set B (22).

3. The graphene composite grounding device according to claim 1, characterized in that, The center lines of the upper locking hole (131) and the lower locking hole (151) are parallel to the insertion direction of the upper connector (13) and the lower connector (15).

4. The graphene composite grounding device according to claim 1, characterized in that, A sealing structure is provided between the connecting sleeve (2) and the rod (11).

5. A method for connecting a graphene composite grounding rod, using the graphene composite grounding device as described in any one of claims 1-4, characterized in that, Includes the following steps: S1: Connect the two graphene composite grounding rods (1) in the horizontal direction; S2: Insert the socket rod (221) of half-set B (22) into the lower locking hole (151) of the lower connector (15), so that half-set B (22) is fitted onto the lower connector (15); S3: Insert the insert rod (211) of half set A (21) into the upper locking hole (131) of the upper assembly (13) until the end of the insert rod (211) is inserted into the end of the receiving rod (221); S4: Wrap the steel wire (4) around the steel wire groove (24) to tighten half set A (21) and half set B (22).

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