Lightning arrester for wind power plant

Abstract

The utility model provides a lightning arrester for a wind power plant, which relates to the technical field of lightning arresters, and is characterized in that a rotary knob is rotated to drive a connecting rod to rotate, at the moment, a rotating plate synchronously rotates along with the connecting rod, and an L-shaped rod is slidably connected to the inner wall of a chute and is fixedly connected to the upper end of the L-shaped rod through a limiting cover; and the diameter of the limiting cover is larger than the groove width of the sliding groove, the limiting effect on the L-shaped rod is achieved, when the rotating plate rotates, the L-shaped rod can move outwards according to the position of the sliding groove, and meanwhile force generated by outward movement can drive the connecting plate and the connecting cylinder to synchronously move outwards. The lightning arrester is provided with a plurality of lightning rods, the protection range can be expanded according to the adjustment angle, the lightning arrester can more comprehensively deal with thunder and lightning threats through the design of the lightning rods, and the lightning protection effect is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection devices, in particular to a lightning protection device for a wind farm. Background Art

[0002] A wind farm is a site for wind power generation. Wind farms are usually built in remote plain areas with few shelters. During thunderstorms, lightning strikes are more common. Therefore, it is necessary to design relevant lightning protection devices to protect wind power generation components.

[0003] Publication No. "CN220190124U" provides that it includes an iron tower, a wind box is fixedly connected to the upper part of the iron tower, a mounting plate is fixedly connected to the upper part of the wind box, a fixing frame is arranged outside the mounting plate, a mounting seat is fixedly connected to the upper part of the fixing frame, a fixing seat is fixedly connected to the upper part of the mounting seat, a lightning rod is fixedly connected to the upper part of the fixing seat, a clamping ring is arranged outside the lightning rod, and both sides of the bottom of the clamping ring are rotatably connected to movable support rods. This patented technology can realize the wrapping of the wind box and the mounting plate by the fixing frame and the fixing plate, and the two fixing plates can be fixed with the second bolt, which is convenient for the installation and disassembly of the lightning protection device.

[0004] However, the above device still has the following problems during implementation:

[0005] For example, in this patented technology, a single lightning rod is provided to protect the wind turbine, but its angle cannot be adjusted. At the same time, ordinary lightning rods usually have only one or a few lightning connection points, and their protection range may be relatively limited, resulting in poor lightning protection effect. It is necessary to provide a new type of lightning protection technology to make up for this deficiency. Utility Model Content

[0006] The purpose of the utility model is to provide a lightning protection device for a wind farm to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A lightning arrester for a wind farm, comprising a lightning rod, characterized in that: a rotating rod is rotatably connected to the bottom of the lightning rod, and fixed plates are fixedly connected to the outer walls of both ends of the rotating rod, and an adjustment mechanism is provided on the outer wall of the lightning rod;

[0009] The adjustment mechanism includes a rotating plate, and a sliding groove is opened inside the rotating plate, the inner wall of the sliding groove is slidably connected to an L-shaped rod, and one end of the L-shaped rod close to the rotating plate is fixedly connected to a limiting cover, the other end of the L-shaped rod is rotatably connected to a connecting plate, and the inside of the connecting plate is fixedly connected to a connecting cylinder, the bottom center of the rotating plate is fixedly connected to a connecting rod, and the end of the connecting rod away from the rotating plate is fixedly connected to a knob.

[0010] Preferably, a connecting hole is formed through the interior of the connecting tube, and the outer wall of the lightning rod is fixedly connected to the inner wall of the connecting hole.

[0011] Preferably, the bottom of the fixing plate is fixedly connected to a supporting plate, the outer wall of the connecting rod passes through the interior of the supporting plate, and the outer wall of the connecting rod is rotatably connected to the center of the supporting plate.

[0012] Preferably, a shock absorbing mechanism is provided at the bottom of the support plate.

[0013] Preferably, the shock absorbing mechanism includes a spring upper seat, and the bottom of the spring upper seat is fixedly connected to a spring, the bottom of the spring is fixedly connected to a spring base, and the top of the spring base is fixedly connected to a shock absorbing cylinder, and the top of the shock absorbing cylinder is fixedly connected to the bottom of the spring upper seat.

[0014] Preferably, the outer wall of the shock absorbing cylinder corresponds to the interior of the spring, the top of the spring upper seat is fixedly connected to the bottom of the support plate, and the bottom of the spring base is fixedly connected with a mounting seat.

[0015] Preferably, a wire is fixedly mounted on the bottom of the support plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. When using the lightning arrester, the connecting rod drives the rotating plate to rotate by turning the knob, so that the L-shaped rod will slide along the slide groove. At this time, the connecting plate will drive the connecting tube to follow the L-shaped rod to move, so that the lightning rod will tilt, thereby achieving the effect of adjusting the angle of the lightning rod body and increasing the support for the lightning rod. At the same time, the lightning arrester is equipped with multiple lightning rods, which can expand the protection range according to the adjustment angle. The design of the lightning rod enables it to respond to the threat of lightning more comprehensively and effectively improve the lightning protection effect.

[0018] 2. When using the lightning protection device, it will shake when it is affected by external forces such as lightning strikes and wind. By setting up a shock-absorbing mechanism, the lightning protection device can have a certain elasticity and flexibility, which can buffer the external force, reduce the impact of the shaking, and effectively improve the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the adjustment mechanism of the utility model;

[0022] Figure 4 It is a partial structural schematic diagram of the utility model.

[0023] In the figure: 1. Lightning rod; 2. Rotating rod; 3. Fixed plate; 4. Adjusting mechanism; 401. Rotating plate; 402. Slide groove; 403. L-shaped rod; 404. Limiting cover; 405. Connecting plate; 406. Connecting tube; 407. Connecting rod; 408. Knob; 409. Connecting hole; 5. Support plate; 6. Shock absorbing mechanism; 601. Spring upper seat; 602. Spring; 603. Shock absorbing tube; 604. Spring base; 7. Mounting seat; 8. Wire. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] For example, see Figure 1-4 The utility model provides a lightning arrester for a wind farm, comprising a lightning rod 1, a rotating rod 2 is rotatably connected to the bottom of the lightning rod 1, and a fixing plate 3 is fixedly connected to the outer wall of both ends of the rotating rod 2, and an adjusting mechanism 4 is arranged on the outer wall of the lightning rod 1;

[0026] Further, the adjustment mechanism 4 includes a rotating plate 401, and a slide groove 402 is formed inside the rotating plate 401, an L-shaped rod 403 is slidably connected to the inner wall of the slide groove 402, and one end of the L-shaped rod 403 close to the rotating plate 401 is fixedly connected to a limit cover 404, the other end of the L-shaped rod 403 is rotatably connected to a connecting plate 405, and a connecting tube 406 is fixedly connected inside the connecting plate 405, a connecting rod 407 is fixedly connected to the bottom center of the rotating plate 401, and a knob 408 is fixedly connected to the end of the connecting rod 407 away from the rotating plate 401;

[0027] More specifically, in this embodiment, when in use, the connecting rod 407 is driven to rotate by turning the knob 408, and the rotating plate 401 will rotate synchronously with the connecting rod 407, because the L-shaped rod 403 is slidably connected to the inner wall of the slide groove 402, and is fixedly connected to the upper end of the L-shaped rod 403 through the limiting cover 404, and the diameter of the limiting cover 404 is larger than the groove width of the slide groove 402, so as to limit the L-shaped rod 403. Therefore, when the rotating plate 401 rotates, the L-shaped rod 403 will move outward according to the position of the slide groove 402, and at the same time The force generated by the outward movement will drive the connecting plate 405 and the connecting tube 406 to move outward synchronously. Since the fixing plate 3 is fixedly connected to the top of the supporting plate 5, the end of the lightning rod 1 connected to the rotating rod 2 can only rotate but not move. Therefore, the connecting tube 406 will drive the lightning rod 1 to tilt, thereby achieving the effect of adjusting the angle. After adjustment, the distance between multiple lightning connection points can be increased, thereby achieving the effect of expanding the protection range of the lightning protection device. After the lightning rod 1 is connected to the lightning, it will immediately introduce the lightning current into the underground grounding device through the wire 8, so that it can quickly discharge into the earth.

[0028] Embodiment 2:

[0029] On the basis of the above embodiment, the bottom of the fixing plate 3 is fixedly connected with a supporting plate 5, and the bottom of the supporting plate 5 is provided with a shock absorbing mechanism 6;

[0030] Further, the shock absorbing mechanism 6 includes a spring upper seat 601, and the bottom of the spring upper seat 601 is fixedly connected with a spring 602, the bottom of the spring 602 is fixedly connected with a spring base 604, and the top of the spring base 604 is fixedly connected with a shock absorbing cylinder 603, and the top of the shock absorbing cylinder 603 is fixedly connected to the bottom of the spring upper seat 601;

[0031] More specifically, in this embodiment, the mounting base 7 can be provided to facilitate installation of the device, and the shock absorbing mechanism 6 can be used to support the device. Since the equipment is installed in a wind farm, these places usually have strong winds, and when the device is used for a long time, it is often subjected to external forces such as lightning strikes and wind, causing the device to shake. By providing the shock absorbing mechanism 6, the lightning protection device has a certain elasticity and flexibility, which reduces the impact force of the shaking and effectively improves the service life of the device.

[0032] Working principle: When in use, the connecting rod 407 is driven to rotate by turning the knob 408, and the rotating plate 401 will rotate synchronously with the connecting rod 407, because the L-shaped rod 403 is slidably connected to the inner wall of the slide groove 402, and is fixedly connected to the upper end of the L-shaped rod 403 through the limit cover 404, and the diameter of the limit cover 404 is larger than the groove width of the slide groove 402, so as to limit the L-shaped rod 403. Therefore, when the rotating plate 401 rotates, the L-shaped rod 403 will rotate according to the slide groove 402. The position of the lightning rod 1 moves outward, and the force generated by the outward movement will drive the connecting plate 405 and the connecting tube 406 to move outward synchronously, so the connecting tube 406 will drive the lightning rod 1 to tilt, thereby achieving the effect of expanding the protection range of the lightning protection device. The device can be easily installed by providing a mounting seat 7. At the same time, the shock absorbing mechanism 6 can support and shock-absorbing the device. After the lightning rod 1 is connected to the lightning, it will immediately introduce the lightning current into the underground grounding device through the wire 8, so that it can be quickly discharged into the earth.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightning protection device for a wind farm, comprising a lightning rod (1), characterized in that: The bottom of the lightning rod (1) is rotatably connected to a rotating rod (2), and the outer walls at both ends of the rotating rod (2) are fixedly connected to fixing plates (3), and the outer wall of the lightning rod (1) is provided with an adjustment mechanism (4); The adjustment mechanism (4) comprises a rotating plate (401), and a sliding groove (402) is provided inside the rotating plate (401), an inner wall of the sliding groove (402) is slidably connected to an L-shaped rod (403), and one end of the L-shaped rod (403) close to the rotating plate (401) is fixedly connected to a limiting cover (404), the other end of the L-shaped rod (403) is rotatably connected to a connecting plate (405), and the inside of the connecting plate (405) is fixedly connected to a connecting tube (406), a connecting rod (407) is fixedly connected to the center of the bottom of the rotating plate (401), and one end of the connecting rod (407) away from the rotating plate (401) is fixedly connected to a knob (408).

2. A lightning protection device for a wind farm according to claim 1, characterized in that: A connecting hole (409) is formed through the interior of the connecting tube (406), and the outer wall of the lightning rod (1) is fixedly connected to the inner wall of the connecting hole (409).

3. A lightning protection device for a wind farm according to claim 1, characterized in that: The bottom of the fixed plate (3) is fixedly connected to a support plate (5), the outer wall of the connecting rod (407) passes through the interior of the support plate (5), and the outer wall of the connecting rod (407) is rotatably connected to the center of the support plate (5).

4. A lightning protection device for a wind farm according to claim 3, characterized in that: A conductive wire (8) is fixedly mounted on the bottom of the support plate (5).

Images