Lightning protection box for wind power generation tower

Abstract

The utility model discloses a lightning protection box for a wind power generation tower, which relates to the technical field of wind power generation towers and comprises a casing, a fixed cylinder is fixed at the tail end in the casing, a rotary connecting block is rotatably connected in the fixed cylinder, and a lightning rod extending to the upper part of the casing is fixed at the top of the rotary connecting block. The fixed cylinder is fixed at the tail end in the casing, the rotary connecting block and the lightning rod extending to the position above the casing are rotatably connected in the fixed cylinder, the lightning rod can play a lightning protection role on the casing in thunderstorm weather, and in normal weather, the toothed plate is driven to descend through the electric push rod, so that the casing is prevented from being damaged. A toothed plate is meshed with two groups of gears and drives a rotating connecting block to rotate through a rotating shaft, so that the rotating connecting block and the lightning rod can rotate from a vertical state to an inclined state, the lightning rod can rotate into a matching groove, and the problem that the lightning rod is damaged due to collision caused by an object in an external environment is avoided; and the overall service life is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power towers, in particular to a lightning protection box for a wind power tower. Background Art

[0002] A wind turbine is a facility that converts wind energy into electrical energy. It usually consists of a tall tower and multiple blades equipped with wind turbines. When wind blows through the blades of the turbine, the blades begin to rotate, driving the generator to rotate, thereby generating electricity. This technology is widely used in areas with rich wind energy resources. It is a clean and renewable way to generate energy. Wind turbines are usually built on high ground or near the coastline to ensure sufficient wind resources.

[0003] In the prior art, a wind power tower is often provided with a lightning protection box on its top, wherein a lightning rod is often provided on the top of the lightning protection box. Under normal weather conditions, the lightning rod is erected on the top of the wind power tower casing and is often affected by the external environment, thereby causing damage to the lightning rod of the lightning protection box. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a lightning protection box for a wind power tower to solve the technical problem in the prior art that under normal weather conditions, the lightning rod erected on the top of the wind power tower casing is often affected by the external environment, thereby causing damage to the lightning rod of the lightning protection box.

[0005] To achieve the above object, the utility model provides the following technical solution: a lightning protection box for a wind power tower, comprising a casing, a fixing cylinder is fixed at the inner end of the casing, and a rotating connection block is rotatably connected inside the fixing cylinder;

[0006] A lightning rod extending to the top of the casing is fixed on the top of the rotating connection block, and the rotating connection block and the casing are rotatably connected via a rotating shaft, gears are fixed on both ends of the outer side of the rotating shaft, an electric push rod is fixed on the bottom end of the fixed cylinder, two sets of toothed plates meshing with the two sets of gears are fixed on the output end of the electric push rod, a matching groove matching with the lightning rod is opened on the top of the casing, and a rubber pad is fixed on the inner wall of the matching groove;

[0007] A connecting wire is connected to one side of the rotating connecting block, and the connecting wire passes through the casing and extends to the ground.

[0008] By adopting the above technical solution, a fixed cylinder is fixed at the inner end of the casing, wherein a rotating connecting block and a lightning rod extending to the top of the casing are rotatably connected inside the fixed cylinder, wherein the lightning rod can play a lightning protection role for the casing in thunderstorm weather, and in normal weather, the tooth plate is driven down by the electric push rod, so that the tooth plate meshes with two sets of gears and drives the rotating connecting block to rotate through the rotating shaft, so that the rotating connecting block and the lightning rod can be rotated from an upright state to an inclined state, and the lightning rod can be rotated to the inside of the matching groove, thereby avoiding the problem of objects in the external environment colliding with the lightning rod and damaging it, and effectively improving the overall service life.

[0009] The utility model is further configured that a through hole matching with the lightning rod is opened on one side of the top of the fixing cylinder, and the width of the through hole is consistent with the width of the lightning rod.

[0010] By adopting the above technical solution, the through hole can facilitate the rotation of the lightning rod and avoid the problem of interference between the fixing tube and the lightning rod.

[0011] The utility model is further configured that both ends of the bottom of the fixing tube are provided with first drainage holes, and both ends of the bottom of the casing are provided with second drainage holes matching with the first drainage holes.

[0012] By adopting the above technical solution, the first drainage hole and the second drainage hole can discharge external rainwater to the outside.

[0013] To sum up, the utility model mainly has the following beneficial effects: the utility model is provided with a fixed cylinder at the inner end of the casing, wherein a rotating connecting block and a lightning rod extending to the top of the casing are rotatably connected inside the fixed cylinder, wherein the lightning rod can play a lightning protection role for the casing in thunderstorm weather; when in normal weather, the tooth plate is driven down by the electric push rod, so that the tooth plate meshes with two sets of gears and drives the rotating connecting block to rotate through the rotating shaft, so that the rotating connecting block and the lightning rod can be rotated from an upright state to an inclined state, and the lightning rod can be rotated to the inside of the matching groove, thereby avoiding the problem of objects in the external environment colliding with the lightning rod and damaging it, and effectively improving the overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cutaway view of the utility model;

[0015] Figure 2 For this utility model Figure 1 A magnified image of point A;

[0016] Figure 3 It is a cross-sectional view of the utility model;

[0017] Figure 4 For this utility model Figure 3 The enlarged view of point B;

[0018] Figure 5 It is a partial cutaway view of the utility model;

[0019] Figure 6 It is a schematic diagram of the overall structure of the utility model.

[0020] In the figure: 1. casing; 2. fixing cylinder; 3. rotating connecting block; 4. lightning rod; 5. connecting wire; 6. rotating shaft; 7. gear; 8. tooth plate; 9. electric push rod; 10. matching groove; 11. through hole; 12. first drainage hole; 13. second drainage hole. DETAILED DESCRIPTION

[0021] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0022] The following describes an embodiment of the utility model based on its overall structure.

[0023] A lightning protection box for a wind power tower, such as Figure 1-6 As shown, it comprises a housing 1, a fixed cylinder 2 is fixed at the inner end of the housing 1, and a rotating connection block 3 is rotatably connected inside the fixed cylinder 2;

[0024] A lightning rod 4 extending to the top of the casing 1 is fixed on the top of the rotating connecting block 3, and the rotating connecting block 3 and the casing 1 are rotatably connected through a rotating shaft 6, gears 7 are fixed on both ends of the outer side of the rotating shaft 6, an electric push rod 9 is fixed on the bottom end of the fixed cylinder 2, and two groups of toothed plates 8 meshing with the two groups of gears 7 are fixed on the output end of the electric push rod 9. A matching groove 10 matching with the lightning rod 4 is provided on the top of the casing 1, and a rubber pad is fixed on the inner wall of the matching groove 10, wherein the lightning rod 4 can play a role in lightning protection for the casing 1 in thunderstorm weather. When in normal weather, the toothed plate 8 is driven down by the electric push rod 9, so that the toothed plate 8 meshes with the two groups of gears 7 and drives the rotating connecting block 3 to rotate through the rotating shaft 6, so that the rotating connecting block 3 and the lightning rod 4 can be rotated from an upright state to an inclined state, so that the lightning rod 4 can be rotated to the inside of the matching groove 10, so as to avoid the problem of collision and damage of the lightning rod 4 caused by objects in the external environment, and effectively improve the overall service life;

[0025] A connecting wire 5 is connected to one side of the rotating connecting block 3 , and the connecting wire 5 passes through the housing 1 and extends to the ground.

[0026] See also Figure 3A through hole 11 matching with the lightning rod 4 is provided on one side of the top of the fixed tube 2, and the width of the through hole 11 is consistent with the width of the lightning rod 4. By setting the above structure, the utility model can facilitate the rotation of the lightning rod 4 and avoid the problem of interference between the fixed tube 2 and the lightning rod 4.

[0027] See also Figure 5 Both ends of the bottom of the fixed tube 2 are provided with a first drainage hole 12, and both ends of the bottom of the casing 1 are provided with a second drainage hole 13 that matches the first drainage hole 12. By setting the above structure, the utility model can discharge external rainwater to the outside through the first drainage hole 12 and the second drainage hole 13.

[0028] The working principle of the utility model is as follows: when in use, a fixed cylinder 2 is fixed at the inner end of the casing 1, wherein the fixed cylinder 2 is rotatably connected with a rotating connection block 3 and a lightning rod 4 extending above the casing 1;

[0029] The lightning rod 4 can play a role in lightning protection for the casing 1 in thunderstorm weather. In normal weather, the electric push rod 9 drives the tooth plate 8 to descend, so that the tooth plate 8 engages with the two sets of gears 7 to drive the rotating connecting block 3 to rotate through the rotating shaft 6, so that the rotating connecting block 3 and the lightning rod 4 can be rotated from an upright state to an inclined state, so that the lightning rod 4 can be rotated to the inside of the matching groove 10, avoiding the problem of objects in the external environment colliding with the lightning rod 4 and damaging it, thereby effectively improving the overall service life.

[0030] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A lightning protection box for a wind power tower, comprising a casing (1), characterized in that: A fixed cylinder (2) is fixed at the inner end of the housing (1), and a rotating connection block (3) is rotatably connected inside the fixed cylinder (2); A lightning rod (4) extending to the top of the housing (1) is fixed on the top of the rotating connection block (3), and the rotating connection block (3) and the housing (1) are rotatably connected via a rotating shaft (6). Gears (7) are fixed at both ends of the outer side of the rotating shaft (6). An electric push rod (9) is fixed at the bottom end of the fixed cylinder (2). Two groups of toothed plates (8) meshing with the two groups of gears (7) are fixed at the output end of the electric push rod (9).

2. The lightning protection box for a wind power tower according to claim 1, characterized in that: A matching groove (10) matching with the lightning rod (4) is provided on the top of the housing (1), and a rubber pad is fixed to the inner wall of the matching groove (10).

3. The lightning protection box for a wind power tower according to claim 1, characterized in that: A connecting wire (5) is connected to one side of the rotating connecting block (3), and the connecting wire (5) passes through the casing (1) and extends to the ground.

4. The lightning protection box for a wind power tower according to claim 1, characterized in that: A through hole (11) matching with the lightning rod (4) is provided on one side of the top of the fixing cylinder (2), and the width of the through hole (11) is consistent with the width of the lightning rod (4).

5. The lightning protection box for a wind power tower according to claim 1, characterized in that: Both ends of the bottom of the fixing tube (2) are provided with first drainage holes (12), and both ends of the bottom of the casing (1) are provided with second drainage holes (13) matching with the first drainage holes (12).

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