Quickly mounted rare earth aluminum copper alloy grounding electrode

Abstract

This invention provides a quick-installation rare-earth aluminum-copper alloy grounding electrode. Through a composite structure design featuring a tapered plug, elastic self-locking, and integrated sealing, it effectively solves the problems of low installation efficiency, unstable contact resistance, and easy corrosion associated with traditional grounding electrodes. The quick-connect tapered heads at both ends of the rare-earth aluminum-copper alloy grounding rod cooperate with the tapered interface of the quick-installation connector, achieving rapid installation through mechanical locking using elastic buckles and annular grooves, eliminating the need for welding or bolt tightening and significantly improving construction efficiency. The silver plating layer on the tapered contact surface effectively reduces contact resistance and exhibits superior long-term stability compared to welded joints. The anti-corrosion design of the sealing ring effectively prevents soil moisture and electrolyte intrusion, ensuring the corrosion resistance of the connection meets the environmental requirements of DL / T 1918-2018. Furthermore, the modular design supports multi-level grounding electrode expansion, adapting to complex terrain and significantly reducing construction costs and maintenance difficulty.

Description

Technical Field

[0001] This utility model relates to the field of grounding electrodes, and in particular to a quick-installing rare earth aluminum-copper alloy grounding electrode. Background Technology

[0002] The grounding system of power engineering is a core component ensuring the safe operation of electrical equipment. The reliability of grounding materials and connection structures directly affects grounding resistance, corrosion resistance, and long-term stability. Currently, steel-clad copper, pure copper, or aluminum alloy grounding materials are commonly used in power engineering, and the connection between grounding electrodes is achieved through welding, bolting, or other methods. For example, DL / T1312-2013 "Technical Conditions for Steel-Clad Steel for Grounding in Power Engineering" specifies that steel-clad copper materials must form a grounding network through exothermic welding or mechanical crimping; while DL / T1918-2018 "Technical Conditions for Aluminum-Copper Alloy for Grounding in Power Engineering" specifies the composition and process requirements for aluminum-copper alloy materials, its connection method still relies on argon arc welding or exothermic welding.

[0003] In existing technologies, the connection structure of the grounding electrode has significant defects:

[0004] Low installation efficiency: Welding process requires professional personnel to operate, is easily restricted by the environment in field construction, and the welded joints require additional anti-corrosion treatment (such as applying asphalt coating), making the process complicated and time-consuming.

[0005] Unstable contact resistance: Bolted connections are prone to oxidation of the contact surface due to soil corrosion, which increases resistance (e.g., electrochemical corrosion problems in copper-aluminum dissimilar metal connections), affecting the voltage equalization effect of the grounding system.

[0006] Poor structural adaptability: Traditional grounding electrodes are mostly fixed straight rod structures, which require additional adjustments to the laying path in rocky or sloping terrain, increasing the difficulty of construction.

[0007] Insufficient corrosion resistance: Existing connection structures (such as welded joints and bolt gaps) are prone to corrosion, especially in soils with extreme pH values ​​(pH<5 or pH>10), which accelerates material failure.

[0008] Although some improved solutions attempt to use prefabricated modular grounding electrodes, these rely on threaded tightening or pin fixing, which still suffers from problems such as loose connections and fluctuating contact resistance. Furthermore, such designs do not optimize corrosion-resistant sealing for the characteristics of aluminum-copper alloys, resulting in insufficient long-term reliability. Therefore, designing a grounding electrode structure that combines rapid installation, stable conductivity, and strong corrosion resistance while meeting the technical requirements of DL / T1918-2018 has become a pressing technical challenge in this field. Utility Model Content

[0009] The purpose of this invention is to provide a quick-installing rare-earth aluminum-copper alloy grounding electrode to solve the problems existing in the prior art.

[0010] To achieve the above objectives, this utility model provides the following solution:

[0011] This utility model provides a quick-installation rare-earth aluminum-copper alloy grounding electrode, comprising:

[0012] A rare earth aluminum-copper alloy grounding rod, wherein both ends of the rare earth aluminum-copper alloy grounding rod are provided with quick-connect tapered heads;

[0013] The quick-connect connector has tapered connection ports at both ends, which mate with the quick-connect tapered head.

[0014] Preferably, the side of the rare earth aluminum-copper alloy grounding rod is connected to a copper busbar via a wire.

[0015] Preferably, the side of the quick-connect tapered head is provided with an annular groove.

[0016] Preferably, the tapered connection port is provided with an elastic buckle, which cooperates with the annular groove.

[0017] Preferably, the elastic buckle includes a T-shaped groove, and a spherical locking head is connected to the T-shaped groove by a spring. The spherical locking head cooperates with the annular groove, and a lever is connected to the side of the spherical locking head.

[0018] Preferably, the edge of the tapered connector is provided with a sealing ring.

[0019] Preferably, the surface of the tapered connector is provided with a silver plating layer.

[0020] The present invention achieves the following beneficial technical effects compared to the prior art:

[0021] This utility model provides a quick-installation rare-earth aluminum-copper alloy grounding electrode. Through a composite structure design of tapered insertion, elastic self-locking, and integrated sealing, it effectively solves the problems of low installation efficiency, unstable contact resistance, and easy corrosion associated with traditional grounding electrodes. The quick-connect tapered heads at both ends of the rare-earth aluminum-copper alloy grounding rod cooperate with the tapered interface of the quick-installation connector, achieving rapid installation through mechanical locking using elastic buckles and annular grooves, eliminating the need for welding or bolt tightening and significantly improving construction efficiency. The silver plating layer on the tapered contact surface effectively reduces contact resistance and exhibits better long-term stability than welded joints. The anti-corrosion design of the sealing ring effectively prevents soil moisture and electrolyte intrusion, ensuring that the corrosion resistance of the connection meets the environmental requirements of DL / T 1918-2018. Furthermore, the modular design supports multi-level grounding electrode expansion, adapting to complex terrain and significantly reducing construction costs and maintenance difficulty. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of a quick-installation rare earth aluminum-copper alloy grounding electrode structure provided by this utility model. Detailed Implementation

[0024] 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.

[0025] The purpose of this invention is to provide a quick-installation rare-earth aluminum-copper alloy grounding electrode to solve the problems existing in the prior art.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1:

[0028] This embodiment provides a quick-installation rare-earth aluminum-copper alloy grounding electrode, such as... Figure 1 As shown, it includes:

[0029] Rare earth aluminum copper alloy grounding rod 1. The rare earth aluminum copper alloy grounding rod 1 adopts the round rod material in the DL / T 1918-2018 standard. The surface is shot blasted and pre-oxidized to meet the requirements of corrosion resistance and resistivity. Both ends are equipped with quick-connect tapered heads 2, which can support expansion connection on the one hand, and can also be used as impact tips to easily insert into the ground on the other hand.

[0030] The quick-connect connector 3 has tapered connection ports 4 at both ends, which cooperate with the quick-connect tapered head 2.

[0031] In one implementation, the side of the rare earth aluminum-copper alloy grounding rod 1 is connected to the copper busbar 6 via a wire 5.

[0032] As one implementation, the quick-connect tapered head 2 has an annular groove 7 on its side.

[0033] As one implementation method, the tapered connection port 4 is provided with an elastic buckle, which cooperates with the annular groove 7.

[0034] In one embodiment, the elastic buckle includes a T-shaped groove 8, a spherical locking head 9 connected to the T-shaped groove 8 by a spring, the spherical locking head 9 cooperating with the annular locking groove 7, and a lever 10 connected to the side of the spherical locking head 9.

[0035] Therefore, when connection is needed, simply align the quick-connect conical head 2 with the conical connector 4 and insert it. During insertion, the ball-shaped locking head 9 is pressed and retracts into the T-groove 8. When fully inserted, the ball-shaped locking head 9 is aligned with the annular groove 7. Under the action of the spring, the ball-shaped locking head 9 is locked into the annular groove 7. When disassembly is needed, simply move the lever 10 to retract the ball-shaped locking head 9 into the T-groove 8 to complete the disassembly. Of course, moisture will inevitably enter the T-groove 8, but it can be sealed with sealing tape during use.

[0036] As one implementation method, a sealing ring 11 is provided on the edge of the tapered connection port 4 to improve the sealing effect.

[0037] As one implementation method, the surface of the tapered connector 4 is provided with a silver plating layer, which can effectively reduce contact resistance.

[0038] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A quick-installation rare-earth aluminum-copper alloy grounding electrode, characterized in that: include: A rare earth aluminum-copper alloy grounding rod, wherein both ends of the rare earth aluminum-copper alloy grounding rod are provided with quick-connect tapered heads; The quick-connect connector has tapered connection ports at both ends, which mate with the quick-connect tapered head.

2. The quick-connect rare-earth aluminum-copper alloy grounding electrode according to claim 1, characterized in that: The side of the rare earth aluminum-copper alloy grounding rod is connected to the copper busbar via a wire.

3. The quick-connect rare-earth aluminum-copper alloy grounding electrode according to claim 1, characterized in that: The quick-connect tapered head has an annular groove on its side.

4. The quick-connect rare-earth aluminum-copper alloy grounding electrode according to claim 3, characterized in that: The tapered connector is provided with an elastic buckle, which cooperates with the annular groove.

5. The quick-connect rare-earth aluminum-copper alloy grounding electrode according to claim 4, characterized in that: The elastic buckle includes a T-shaped groove, in which a spherical locking head is connected by a spring. The spherical locking head cooperates with the annular groove, and a lever is connected to the side of the spherical locking head.

6. The quick-connect rare-earth aluminum-copper alloy grounding electrode according to claim 1, characterized in that: The edge of the tapered connector is provided with a sealing ring.

7. The quick-connect rare-earth aluminum-copper alloy grounding electrode according to claim 1, characterized in that: The surface of the tapered connector is plated with silver.

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