Lightning arrester convenient to adjust for wind power plant

Abstract

The utility model relates to the field of lightning arresters, in particular to a conveniently-adjusted lightning arrester for a wind power plant. The utility model provides the conveniently-adjusted lightning arrester for the wind power plant, which is convenient to disassemble and assemble and is convenient to adjust the distance between the lightning arresters. A wind power plant lightning arrester convenient to adjust comprises a stand column, an installation frame, a guide frame, installation blocks, sliding blocks, a lightning arrester body and a limiting mechanism, the upper portion of the stand column is connected with the installation frame, the lower portion of the stand column is connected with the guide frame, the installation frame is provided with three installation blocks, and the two installation blocks on the left side are both connected with the installation frame in a sliding mode. The right side installation block is fixedly connected with the installation frame, and three sliding blocks are arranged on the guide frame. According to the lightning arrester fixing device, the lightning arrester is clamped into the sliding block, then the extrusion block is controlled to move downwards, the telescopic spring rebounds and the limiting frame moves rightwards to be connected with the lightning arrester in a clamped mode, then the lightning arrester is fixed and limited, fixing of the lightning arrester is enhanced, and dismounting and mounting of the lightning arrester are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of surge arresters, and in particular to a surge arrester for wind farms that is easy to adjust. Background Technology

[0002] A surge arrester, also known as an overvoltage protector or overvoltage limiter, is an electrical device used to protect electrical equipment from high transient overvoltage hazards. Surge arresters are usually connected between the power grid conductor and the ground wire, and sometimes also connected next to the windings of electrical equipment or between conductors. Their main function is to limit the amplitude and duration of transient overvoltages to protect electrical equipment from damage.

[0003] Existing surge arresters rely on adjusting the spacing between them to determine whether to attract or prevent lightning strikes. However, they are typically fixed with screws, which prevents the spacing between them from being adjusted, making it inconvenient to determine whether to attract or prevent lightning strikes. Furthermore, the screw fixing requires repeated twisting of the screws for disassembly and installation, which is quite inconvenient.

[0004] Therefore, it is necessary to design an adjustable surge arrester for wind farms that is easy to disassemble and install, and easy to adjust the spacing between surge arresters. Utility Model Content

[0005] To overcome the shortcomings of existing surge arresters, such as the inability to adjust the spacing between them, the inconvenience of confirming lightning induction and protection, and the inconvenience of repeatedly twisting screws to disassemble and install them, the technical problem of this utility model is to provide a wind farm surge arrester that is easy to disassemble and install and easy to adjust the spacing between the surge arresters.

[0006] An easily adjustable surge arrester for wind farms includes a column, a mounting frame, a guide frame, mounting blocks, sliders, a surge arrester, and a limiting mechanism. The mounting frame is connected to the upper part of the column, and the guide frame is connected to the lower part of the column. The mounting frame has three mounting blocks. The two mounting blocks on the left are slidably connected to the mounting frame, and the mounting block on the right is fixedly connected to the mounting frame. The guide frame has three sliders. The two sliders on the left are slidably connected to the mounting frame, and the slider on the right is fixedly connected to the mounting frame. The surge arrester is detachably connected between each mounting block and its corresponding slider. Each slider has a limiting mechanism inside for fixing and limiting the surge arrester.

[0007] In a preferred embodiment of this utility model, the limiting mechanism includes a limiting frame, a telescopic spring, and a guide rod. The guide rod is connected to the left side of the slider, and the limiting frame is slidably connected to the guide rod. The limiting frame is engaged with the surge arrester, and the telescopic spring is connected between the guide rod and the adjacent limiting frame. Under the action of the telescopic spring, the limiting frame moves to the right and engages with the surge arrester, thereby fixing and limiting the surge arrester.

[0008] In a preferred embodiment of this utility model, it further includes a squeezing block. The squeezing block is slidably connected to the middle of the slider. The limiting frame is in contact with the squeezing block. By moving the squeezing block upward, the limiting frame moves to the left along the guide rod and disengages from the surge arrester. The telescopic spring is squeezed, and the surge arrester moves upward, thereby removing the surge arrester.

[0009] In a preferred embodiment of this utility model, an adjustment mechanism is further included. The adjustment mechanism includes a lead screw, a bevel gear, a pulling frame, and a connecting frame. The lead screw is rotatably connected to the bottom of the guide frame. The left side of the lead screw is connected to the leftmost slider via a thread. The right side of the lead screw is connected to a bevel gear. A bevel gear is also rotatably connected to the inner side of the right side of the guide frame. The bevel gears mesh with each other. The bottom of the leftmost and rightmost sliders are rotatably connected to the pulling frame. The bottom of the middle slider is rotatably connected to the connecting frame. The connecting frame and the pulling frame are rotatably connected. Through the meshing movement of the bevel gears, the lead screw rotates, and the leftmost slider moves left and right on the lead screw via a thread. Under the action of the pulling frame and the connecting frame, the middle slider moves left and right, thereby adjusting the spacing between the surge arresters.

[0010] In a preferred embodiment of this utility model, each mounting block has a slot inside, and the slots correspond to the upper part of the surge arrester.

[0011] In a preferred embodiment of the present invention, a rotating handle is also included, and the rotating handle is connected to the bevel gear on the inner right side of the guide frame.

[0012] The beneficial effects are as follows: 1. This utility model inserts the surge arrester into the slider, and then controls the pressing block to move downward, the telescopic spring to rebound, and the limiting frame to move to the right and engage with the surge arrester, thereby fixing and limiting the surge arrester, thus strengthening the fixation of the surge arrester and facilitating the disassembly and installation of the surge arrester.

[0013] 2. This utility model uses a rotating handle to cause the bevel gears to mesh and rotate, which in turn causes the lead screw to rotate. This causes the leftmost slider to move left and right on the lead screw via a thread, which in turn drives the middle slider to move left and right under the action of the pulling frame and connecting frame. This allows for adjustment of the spacing between the surge arresters. The operation is simple and convenient, making it easy to adjust the spacing between the surge arresters and thus easy to confirm lightning induction and lightning protection. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0016] Figure 3 This is a three-dimensional structural diagram of the first type of limiting mechanism of this utility model.

[0017] Figure 4 This is a schematic diagram of a second cross-sectional three-dimensional structure of the limiting mechanism of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the adjustment mechanism of this utility model.

[0019] The components in the attached diagram are labeled as follows: 1-Column, 2-Mounting bracket, 3-Guide bracket, 4-Mounting block, 5-Slider, 6-Surge arrester, 7-Limiting mechanism, 71-Limiting bracket, 72-Pressure block, 73-Telescopic spring, 74-Guide rod, 8-Adjusting mechanism, 81-Screw rod, 82-Bevel gear, 83-Rotating handle, 84-Pull bracket, 85-Connecting bracket. Detailed Implementation

[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0021] A surge arrester for wind farms that is easy to adjust, such as Figures 1-4 As shown, it includes a column 1, a mounting frame 2, a guide frame 3, a mounting block 4, a slider 5, a surge arrester 6, and a limiting mechanism 7. The upper part of the column 1 is connected to the mounting frame 2, and the lower part of the column 1 is connected to the guide frame 3. The mounting frame 2 is provided with three mounting blocks 4. The two mounting blocks 4 on the left are slidably connected to the mounting frame 2, and the mounting block 4 on the right is fixedly connected to the mounting frame 2. Each mounting block 4 has a slot inside, and the slots correspond to the upper part of the surge arrester 6. The guide frame 3 is provided with three sliders 5. The two sliders 5 on the left are slidably connected to the mounting frame 2, and the slider 5 on the right is fixedly connected to the mounting frame 2. The surge arrester 6 is detachably connected between each mounting block 4 and its corresponding slider 5. Each slider 5 is provided with a limiting mechanism 7 for fixing and limiting the surge arrester 6.

[0022] like Figure 1 , Figure 3 and Figure 4 As shown, the limiting mechanism 7 includes a limiting frame 71, a telescopic spring 73, and a guide rod 74. The guide rod 74 is connected to the left side of the slider 5. The limiting frame 71 is slidably connected to the guide rod 74. It also includes a pressing block 72. The pressing block 72 is slidably connected to the middle of the slider 5. The limiting frame 71 and the pressing block 72 are in contact and cooperate. The limiting frame 71 is snapped into the surge arrester 6. The telescopic spring 73 is connected between the guide rod 74 and the adjacent limiting frame 71.

[0023] This device can be used when adjusting the surge arrester 6 for wind farms. When installing the surge arrester 6, the upper part of the surge arrester 6 is installed in the slot of the mounting bracket 2, and the lower part of the surge arrester 6 contacts the slider 5. By controlling the pressing block 72 to move upward, the limiting bracket 71 moves to the left along the guide rod 74, compressing the telescopic spring 73. This causes the surge arrester 6 to move downward along the slot on the mounting block 4, thus locking the surge arrester 6 into the slider 5. Subsequently, by controlling the pressing block 72 to move downward, the telescopic spring 73 rebounds, and the limiting bracket 71... 1. Move to the right and engage with surge arrester 6, thereby fixing and limiting surge arrester 6, thus strengthening the fixation of surge arrester 6 and facilitating the disassembly and installation of surge arrester 6. When it is necessary to disassemble surge arrester 6, move the squeezing block 72 upward, causing the limiting frame 71 to move to the left along the guide rod 74 and disengage from surge arrester 6. The telescopic spring 73 is squeezed, and then moves surge arrester 6 upward along the slot on the mounting block 4, thereby removing surge arrester 6. After removal, control the squeezing block 72 to move downward, the telescopic spring 73 returns to its original state, and the limiting frame 71 resets.

[0024] like Figure 1 and Figure 5 As shown, it also includes an adjustment mechanism 8, which includes a lead screw 81, a bevel gear 82, a pull frame 84, and a connecting frame 85. The lead screw 81 is rotatably connected to the bottom of the guide frame 3. The left side of the lead screw 81 is connected to the leftmost slider 5 by a thread. The bevel gear 82 is connected to the right side of the lead screw 81. The bevel gear 82 is also rotatably connected to the inner right side of the guide frame 3. The bevel gears 82 mesh with each other. It also includes a rotating handle 83. The rotating handle 83 is connected to the bevel gear 82 on the inner right side of the guide frame 3. The bottom of the leftmost and rightmost sliders 5 are rotatably connected to the pull frame 84. The bottom of the middle slider 5 is rotatably connected to the connecting frame 85. The connecting frame 85 and the pull frame 84 are rotatably connected.

[0025] When it is necessary to adjust the spacing between the surge arresters 6, the bevel gears 82 mesh with each other by rotating the rotary handle 83, causing the lead screw 81 to rotate. This causes the leftmost slider 5 to move left and right on the lead screw 81 via the thread. In turn, under the action of the pulling frame 84 and the connecting frame 85, the middle slider 5 moves left and right, thereby adjusting the spacing between the surge arresters 6. The operation is simple and convenient, making it easy to adjust the spacing between the surge arresters 6 and to confirm whether lightning is being attracted or protected. After the adjustment is completed, stop rotating the rotary handle 83 and no longer adjust the spacing between the surge arresters 6.

[0026] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. 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 ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A lightning arrester for a wind farm that is easy to adjust, characterized by: The utility model comprises a column (1), a mounting frame (2), a guide frame (3), a mounting block (4), a slider (5), a lightning arrester (6) and a limiting mechanism (7). The upper part of the column (1) is connected to the mounting frame (2), the lower part of the column (1) is connected to the guide frame (3), three mounting blocks (4) are arranged on the mounting frame (2), two mounting blocks (4) on the left side are connected to the mounting frame (2) in a sliding manner, and the mounting block (4) on the right side is fixedly connected to the mounting frame (2), three sliders (5) are arranged on the guide frame (3), two sliders (5) on the left side are connected to the mounting frame (2) in a sliding manner, and the slider (5) on the right side is fixedly connected to the mounting frame (2), the lightning arrester (6) is detachably connected between the mounting block (4) and its corresponding slider (5), and a limiting mechanism (7) for fixing the limit lightning arrester (6) is arranged inside the slider (5).

2. The wind farm arrester that is easy to adjust according to claim 1 is characterized in that: The limiting mechanism (7) comprises a limiting frame (71), a telescopic spring (73) and a guide rod (74); the left side of the slider (5) is connected to the guide rod (74); the limiting frame (71) is slidably connected to the guide rod (74); the limiting frame (71) is clamped with the lightning arrester (6); and the guide rod (74) and the adjacent limiting frame (71) are connected with a telescopic spring (73); under the action of the telescopic spring (73), the limiting frame (71) moves to the right and clamps with the lightning arrester (6), thereby fixing and limiting the lightning arrester (6).

3. The adjustable lightning arrester for wind farm according to claim 2 is characterized in that: It also includes an extrusion block (72), the middle part of the slider (5) is slidably connected to the extrusion block (72), the limiting frame (71) is in contact with the extrusion block (72), and the extrusion block (72) moves upward, so that the limiting frame (71) moves leftward along the guide rod (74) and disengages from the lightning arrester (6), and the telescopic spring (73) is squeezed to move the lightning arrester (6) upward, thereby taking out the lightning arrester (6).

4. The adjustable lightning arrester for wind farm according to claim 3 is characterized in that: The invention also comprises an adjusting mechanism (8), which comprises a screw rod (81), a bevel gear (82), a pulling frame (84) and a connecting frame (85). The bottom of the guide frame (3) is rotatably connected to the screw rod (81), the left part of the screw rod (81) is connected to the leftmost slider (5) through a thread, the right side of the screw rod (81) is connected to the bevel gear (82), the inner side of the right part of the guide frame (3) is also rotatably connected to the bevel gear (82), the bevel gears (82) are meshed with each other, and the leftmost and rightmost sliders (5) are connected to each other. ) is rotatably connected to a pulling frame (84) at the bottom, and a connecting frame (85) is rotatably connected to the bottom of the middle slider (5), and the connecting frame (85) and the pulling frame (84) are rotatably connected; the bevel gears (82) mesh with each other, so that the screw rod (81) rotates, and then the leftmost slider (5) moves left and right on the screw rod (81) through the thread, and then the middle slider (5) is driven to move left and right under the action of the pulling frame (84) and the connecting frame (85), thereby adjusting the interval between the lightning arresters (6).

5. The adjustable lightning arrester for wind farm according to claim 4 is characterized in that: The mounting blocks (4) are provided with card slots inside, and the card slots correspond to the upper part of the lightning arrester (6).

6. The adjustable lightning arrester for wind farm according to claim 5 is characterized in that: The guide frame (3) further comprises a rotating handle (83), which is connected to the bevel gear (82) on the inner side of the right part of the guide frame (3).

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