quick-connection clamps for wind turbine foundation grounding materials

Abstract

This utility model relates to the field of grounding device technology, and in particular to a quick-connect clamp for wind turbine foundation grounding materials. It includes a grounding rod with a grounding plate fixedly installed at its lower end. A support plate is mounted on the grounding rod, and a clamping plate is mounted on the support plate. A connector is provided between the clamping plate and the support plate. A clamping nut that mates with the clamping plate is threaded onto the grounding rod. A connecting plate is provided between the clamping nut and the clamping plate. Both the connector and the connecting plate are connected to a grounding wire. This connection reduces the probability of poor contact between the grounding wire and the grounding rod, preventing interference with the conduction efficiency of lightning current. Simultaneously, both the connector and the connecting plate provide conductivity during lightning strikes, effectively diverting lightning current, increasing conductivity, and reducing the burden on the connection between the clamp and the grounding wire.

Description

Technical Field

[0001] This utility model relates to the field of grounding device technology, and in particular to a quick-connect clamp for wind turbine foundation grounding materials. Background Technology

[0002] In power systems, grounding usually refers to connecting to the earth, which means connecting a metal part of the power system or equipment to a grounding electrode via a metal grounding wire. The main purpose of grounding is to use the grounding electrode to quickly and freely discharge fault current or lightning current into the earth's soil, thereby protecting personal safety and the safety of electrical equipment. When wind turbines are in operation, due to their height, they are easily struck by lightning in the natural environment. In order to prevent lightning damage to wind turbines, lightning protection structures are usually installed on wind turbines and grounded through grounding wires to conduct lightning into the earth and avoid damaging the wind turbines.

[0003] Existing grounding methods typically involve inserting grounding components into the ground, fixing grounding wires to grounding rods, and installing lightning rods connected to the grounding wires on the wind turbine to conduct lightning into the earth. For example, Chinese Patent Publication No. CN213692360U discloses "A Grounding Device for a Wind Turbine Generator." When the lightning rod comes into contact with lightning in the high sky, the current is transmitted along two conductive components to a ring-shaped conductive shunt component, and then shunted by multiple grounding components and introduced into the grounding grid on the grounding base. This can prevent lightning from damaging the wind turbine.

[0004] In practical use, lightning will first be transmitted along the conductive components to the ring-shaped conductive shunt, and then shunted by multiple grounding components and introduced into the grounding grid on the grounding base. During installation, the grounding components need to be welded to the ring-shaped conductive shunt and the grounding base or other methods to secure them to achieve conductivity. The operation process is complicated, and if the welding or fastening is not firm, it can easily lead to poor contact and affect the conduction efficiency of the lightning current. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, such as complicated operation process, easy to cause poor contact, and affect the conduction efficiency of lightning current, and proposes a quick connection clamp for wind turbine foundation grounding material.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a quick-connection clamp for wind turbine foundation grounding materials, including a grounding rod, a grounding plate fixedly installed at the lower end of the grounding rod, a support plate installed on the grounding rod, a clamping plate installed on the support plate, a connector installed between the clamping plate and the support plate, a tightening nut threaded onto the grounding rod that mates with the clamping plate, a connecting plate installed between the tightening nut and the clamping plate, and both the connector and the connecting plate being connected to the grounding wire.

[0008] Furthermore, the connector includes a positioning rod and a connecting rod, and both the support plate and the clamping plate are provided with positioning grooves that cooperate with the positioning rod.

[0009] Furthermore, one end of the connecting rod is threaded with a mounting cap, and the mounting cap has multiple insertion holes for inserting wires.

[0010] Furthermore, the connecting plate has a threaded hole, and a hand-tightening bolt is threaded into the threaded hole. The hand-tightening bolt is equipped with a nut for tightening the wire.

[0011] Furthermore, a positioning block is fixedly installed on the grounding rod, and a corresponding guide hole is provided on the clamping plate.

[0012] Furthermore, an adjusting nut is threaded onto the grounding rod, and the upper end of the adjusting nut contacts the support plate.

[0013] The quick-connection clamp for wind turbine foundation grounding material proposed in this utility model has the following advantages:

[0014] In this utility model, the connection of both the connector and the connecting plate to the grounding wire reduces the probability of poor contact between the grounding wire and the grounding rod, preventing the impact on the conduction efficiency of the lightning current. At the same time, the connector and the connecting plate both have a conductive effect during the lightning strike, effectively diverting the lightning current, increasing the conductivity efficiency, and reducing the burden on the connection between the clamp and the grounding wire.

[0015] Secondly, in this invention, the connecting plate tightens the grounding wire with hand-tightened bolts, and the connecting piece tightens the grounding wire with a mounting cap. No welding or other operations are required during wiring, making the process simpler and more efficient. This allows the grounding wire to be connected to multiple connecting clamps in a short time, further reducing the possibility of poor contact affecting the conduction efficiency of lightning current. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the quick-connect clamp for wind turbine foundation grounding material proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the support plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the positioning block of this utility model;

[0019] Figure 4 This is a schematic diagram of the positioning rod of this utility model.

[0020] In the diagram: 1. Grounding rod; 2. Support plate; 3. Clamping plate; 4. Connector; 41. Positioning rod; 42. Connecting rod; 43. Mounting cap; 44. Insertion hole; 5. Compression nut; 6. Connecting plate; 61. Hand-tightening bolt; 7. Positioning block; 8. Adjusting nut. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A quick-connection clamp for wind turbine foundation grounding material includes a grounding rod 1, a grounding plate fixedly installed at the lower end of the grounding rod 1, a support plate 2 installed on the grounding rod 1, a clamping plate 3 installed on the support plate 2, a connector 4 installed between the clamping plate 3 and the support plate 2, a tightening nut 5 threadedly connected to the grounding rod 1 to cooperate with the clamping plate 3, a connecting plate 6 installed between the tightening nut 5 and the clamping plate 3, and both the connector 4 and the connecting plate 6 are connected to the grounding wire. In some embodiments, a conductive plate is installed between the support plate 2 and the clamping plate 3 for current transmission.

[0023] In this invention, both the connector 4 and the connecting plate 6 are connected to the grounding wire, which reduces the probability of poor contact between the grounding wire and the grounding rod, preventing any impact on the conduction efficiency of the lightning current. At the same time, both the connector 4 and the connecting plate 6 have a conductive effect during the lightning strike, effectively diverting the lightning current, increasing the conductivity, and preventing the connection between the clamp and the grounding wire from melting due to excessive instantaneous current, making it safer and more stable.

[0024] Furthermore, in this embodiment, the connector 4 includes a positioning rod 41 and a connecting rod 42. The support plate 2 and the clamping plate 3 are both provided with positioning grooves that cooperate with the positioning rod 41. The positioning rod 41 is fixed by setting a positioning pin to prevent the connector 4 from falling off, while increasing the contact area with the connector 4 and improving the conductivity.

[0025] Furthermore, in this embodiment, one end of the connecting rod 42 is threadedly connected to a mounting cap 43, and the mounting cap 43 has multiple insertion holes 44 for inserting wires. When the grounding wire is inserted into the insertion hole 44, rotating the mounting cap 43 will tightly abut the grounding wire against the connector 4 to achieve conductivity, which is simple to operate.

[0026] It should be noted that in this embodiment, the connecting plate 6 has a threaded hole, and a hand-tightening bolt 61 is threadedly connected to the threaded hole. The hand-tightening bolt 61 is provided with a nut for tightening the wire. When wiring, first wrap the grounding wire around the threaded part of the hand-tightening bolt 61, and then rotate the hand-tightening bolt 61 to tighten and fix the grounding wire to complete the connection, which is convenient and quick.

[0027] Furthermore, in this embodiment, a positioning block 7 is fixedly installed on the grounding rod 1, and a corresponding guide hole is opened on the clamping plate 3. The position of the clamping plate 3 is fixed by the positioning block 7 to prevent the clamping plate 3 from rotating and misaligning with the support plate 2 when the clamping nut 5 is rotated. In some embodiments, the support plate 2 is also provided with a guide hole.

[0028] More specifically, in this embodiment, an adjusting nut 8 is threaded onto the grounding rod 1. The upper end of the adjusting nut 8 contacts the support plate 2. By rotating the adjusting nut 8, the initial height of the support plate 2 can be changed, which is suitable for wind turbine foundations of different specifications.

[0029] Working method: During operation, first connect the grounding plate of the grounding rod 1 to the ground, rotate the adjusting nut 8 to change the initial height of the support plate 2, and then pour the foundation of the wind turbine. After the pouring is completed, first wrap the grounding wire around the screw part of the hand-tightening bolt 61, rotate the hand-tightening bolt 61 to tighten and fix the grounding wire to complete the connection, then insert the grounding wire into the socket 44, rotate the mounting cap 43 to tightly abut the grounding wire and the connector 4 to achieve conductivity.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-connect clamp for wind turbine foundation grounding materials, including a grounding rod (1), characterized in that, The lower end of the grounding rod (1) is fixedly provided with a grounding plate. A support plate (2) is provided on the grounding rod (1). A clamping plate (3) is provided on the support plate (2). A connector (4) is provided between the clamping plate (3) and the support plate (2). A clamping nut (5) that cooperates with the clamping plate (3) is threaded on the grounding rod (1). A connecting plate (6) is provided between the clamping nut (5) and the clamping plate (3). Both the connector (4) and the connecting plate (6) are connected to the grounding wire.

2. The quick-connect clamp for wind turbine foundation grounding material according to claim 1, characterized in that: The connector (4) includes a positioning rod (41) and a connecting rod (42). The support plate (2) and the clamping plate (3) are both provided with positioning grooves that cooperate with the positioning rod (41).

3. The quick-connect clamp for wind turbine foundation grounding material according to claim 2, characterized in that: One end of the connecting rod (42) is threadedly connected to a mounting cap (43), and the mounting cap (43) has multiple insertion holes (44) for inserting wires.

4. The quick-connect clamp for wind turbine foundation grounding material according to claim 1, characterized in that: The connecting plate (6) has a threaded hole, and a hand-tightening bolt (61) is threadedly connected to the threaded hole. The hand-tightening bolt (61) has a nut for tightening the wire.

5. The quick-connect clamp for wind turbine foundation grounding material according to claim 1, characterized in that: A positioning block (7) is fixedly installed on the grounding rod (1), and a corresponding guide hole is opened on the clamping plate (3).

6. The quick-connect clamp for wind turbine foundation grounding material according to claim 1, characterized in that: An adjusting nut (8) is threaded onto the grounding rod (1), and the upper end of the adjusting nut (8) is in contact with the support plate (2).

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