Lightning arrester with protection capability

Abstract

The invention discloses a lightning arrester with protection capability, and relates to the technical field of lightning arresters, the lightning arrester with protection capability comprises a lightning arrester body, a porcelain insulator is fixed on the upper surface of the lightning arrester body, a high-voltage wire penetrates through the porcelain insulator, and the penetrating position is fixedly connected; a grounding terminal is fixed on the lower surface of the lightning arrester body, a connecting disc is fixed on the upper surface of the porcelain insulator, a protection device for preventing birds from dragging a high-voltage line is arranged on the upper surface of the connecting disc, and a protection device for expelling the birds is arranged above the protection device. And a maintenance device for maintaining the protection device is arranged on the upper surface of the connecting disc. The lightning arrester with the protection capability can surround the outer wall of the high-voltage line to protect the high-voltage line when birds fall on the protection disc, so that the birds are prevented from damaging the high-voltage line, shortening the service life of the high-voltage line and causing accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of lightning arresters, and particularly to a lightning arrester with protection ability. Background Art

[0002] With the continuous development of the power system, the voltage level is constantly increasing, the power grid scale is expanding day by day, and the requirements for overvoltage protection of power equipment are getting higher and higher. As a key device for limiting overvoltage and protecting electrical equipment, the protection ability of the lightning arrester is crucial. In a high-voltage and large-capacity power system, lightning overvoltage, switching overvoltage, etc. may pose a serious threat to the insulation of equipment, and the lightning arrester needs to have stronger protection performance to ensure the safe and stable operation of the system.

[0003] A lightning arrester with protection ability with the patent publication number of CN208922798U includes a lightning arrester body and a mounting base plate. An umbrella skirt is fixed on the outer wall of the lightning arrester body, and a sealing top cover is installed at the top end of the lightning arrester body. A mounting bracket is installed at the center of the bottom end of the lightning arrester body. A stainless steel stud is connected to the center of the mounting base plate. Adjusting nuts are threadedly connected to both ends of the stainless steel stud. Anti-slip and wear-resistant pads are installed on the front surface of the mounting base plate. A groove is provided on the top surface of the mounting base plate. The bottom end of the mounting bracket passes through the groove and is fixed to the center of the stainless steel stud. In the above application, the inclination angle of the lightning arrester body can be manually adjusted to make the lightning arrester body in a suitable position, and then the two adjusting nuts are manually adjusted to be closely attached to the surface of the anti-slip and wear-resistant pads, so that the two adjusting nuts will not rotate, thereby fixing the stainless steel stud and improving the stability of the lightning arrester.

[0004] However, the above device only protects the stability of the lightning arrester at the bottom end of the lightning arrester. Most lightning arresters are installed outdoors. During their operation, birds may perch on them, and when the birds perch on them, they may damage the lightning arrester and the high-voltage wires connected thereto, thereby affecting the normal operation of the lightning arrester. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a lightning arrester with protection ability, which solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A lightning arrester with protection ability, including a lightning arrester body, a porcelain insulator is fixed on the upper surface of the lightning arrester body, a high-voltage wire passes through the porcelain insulator and is fixedly connected at the penetration point, a grounding terminal is fixed on the lower surface of the lightning arrester body, a connection plate is fixed on the upper surface of the porcelain insulator, a protection device for preventing flying birds from dragging the high-voltage wire is arranged on the upper surface of the connection plate, a protection device for expelling flying birds is arranged above the protection device, and a maintenance device for maintaining the protection device is arranged on the upper surface of the connection plate;

[0007] Among them, the protection device includes a first spring, a protection disc, a connecting rod, a first hinge plate, a pressing plate, a limiting rod, a first hinge rod and a support plate. The first spring is fixedly connected to the upper surface of the connection plate, the protection disc is fixedly connected to the end of the first spring away from the connection plate, and the connecting rod is fixedly connected to the upper surface of the connection plate.

[0008] According to the above technical solution, the connecting rod passes through the protection disc and is slidably connected at the penetration point. The first hinge plate is hinged to the end of the connecting rod away from the connection plate. When the protection disc slides downward, the connecting rod drives the first hinge plate to rotate. The outer wall of the pressing plate is hinged to the end of the first hinge plate away from the connecting rod. A guiding strip is fixed on the upper surface of the protection disc, and the guiding strip passes through the pressing plate and is slidably connected at the penetration point. The rotation of the first hinge plate drives the pressing plate to slide.

[0009] According to the above technical solution, the limiting rod is fixedly connected to the outer wall of the pressing plate. The sliding of the pressing plate drives the limiting rod to move. The limiting rod passes through one end of the first hinge rod and is rotatably connected at the penetration point. The movement of the limiting rod drives the first hinge rod to rotate. The other ends of the two first hinge rods are hinged to each other. The hinge point of the two first hinge rods is hinged to the bottom surface of the support plate. The rotation of the first hinge rod drives the support plate to move. A guiding rod is fixed on the bottom surface of the support plate, and the guiding rod passes through the protection disc and is slidably connected at the penetration point.

[0010] According to the above technical solution, the protection device includes a sliding rod, a limiting column, a second spring, a sliding block, a second hinge rod and a friction ring. The left end of the sliding rod is hinged to the outer wall of the pressing plate. The sliding of the pressing plate drives the sliding rod to move.

[0011] According to the above technical solution, the limiting column is fixedly connected to the upper surface of the protection disc. The limiting column passes through the middle of the sliding rod and is slidably connected at the penetration point. When the sliding rod moves, it also rotates. The second spring is fixedly connected to the upper surface of the connection plate. The sliding block is fixedly connected to the end of the second spring away from the connection plate. The rotation of the sliding rod pushes the sliding block to slide.

[0012] According to the above technical solution, the sliding block penetrates through the protective disc and is slidably connected at the penetration point. The inner wall of the sliding block is hinged to one end of the second hinge rod. The sliding of the sliding block drives the second hinge rod to move. The other end of the second hinge rod is hinged to the outer wall of the friction ring. The movement of the second hinge rod drives the friction ring to move. A high-voltage wire penetrates through the friction ring and is in contact at the penetration point.

[0013] According to the above technical solution, the maintenance device includes a third hinge rod, a slider, a fourth hinge rod, a second hinge plate, a hinge block and a cleaning plate. One end of the third hinge rod is hinged to the outer wall of the friction ring. The movement of the friction ring drives the third hinge rod to move.

[0014] According to the above technical solution, the other end of the third hinge rod is hinged to the upper surface of the slider. The movement of the third hinge rod drives the slider to slide. The slider is slidably connected to the upper surface of the connection disc. One end of the fourth hinge rod is hinged to the upper surface of the slider. When the slider slides, it drives the fourth hinge rod to move.

[0015] According to the above technical solution, the other end of the fourth hinge rod is hinged to the bottom end of the second hinge plate. The hinge block is fixedly connected to the outer wall of the protective disc. When the fourth hinge rod moves, it drives the second hinge plate to rotate. The hinge block penetrates through the second hinge plate and is slidably connected at the penetration point. The cleaning plate is fixedly connected to the upper end of the second hinge plate. The rotation of the second hinge plate drives the cleaning plate to swing.

[0016] The present invention provides a lightning arrester with a protection ability, having the following beneficial effects:

[0017] (1). The present invention is provided with a protection device. When a bird lands on the protective disc, due to the gravity, the protective disc moves downward, and cooperates with the connecting rod fixed on the upper surface of the connection disc to push the first hinge plate to rotate. The rotation of the first hinge plate pushes the pressing plates to approach each other, pressing and protecting the high-voltage wire, avoiding the pulling of the high-voltage wire by the bird when it is on the protective disc, causing the high-voltage wire to become loose on the device, resulting in poor contact and affecting the use effect of the lightning arrester; while protecting the high-voltage wire, the first hinge rod is driven to move by the limiting rod, so that the first hinge rod pushes the support plate to rise, supporting the bent part of the high-voltage wire, avoiding the pulling of the high-voltage wire by the bird above the protective disc, causing the high-voltage wire to be damaged and reducing the service life of the high-voltage wire.

[0018] (2) The present invention is provided with a protection device. While protecting the high-voltage wire, the pressing plate drives the sliding rod to move, and the sliding rod rotates in cooperation with the limiting column and swings above the protection disc to drive away birds, preventing the birds from standing above the protection disc for too long and damaging the high-voltage wire and the equipment. While driving away the birds, the sliding rod pushes the sliding block to slide downward, driving the second hinge rod to squeeze the friction ring, making the friction ring fit the high-voltage wire, increasing the friction force between the friction ring and the high-voltage wire, and pushing the high-voltage wire downward while moving downward, making the connection between the high-voltage wire and the equipment more stable.

[0019] (3) The present invention is provided with a maintenance device. The friction ring drives the third hinge rod to rotate, the third hinge rod drives the slider to slide, the slider cooperates with the fourth hinge rod and the hinge block to push the second hinge plate to rotate, and when the second hinge plate rotates, it can drive the cleaning plate to swing above the protection disc. Since the outdoor environment has a large amount of dust and the device is installed outdoors for a long time, it may cause a large amount of dust to accumulate on the protection disc, pressing down the protection disc, causing the first spring in the protection device to be in a working state for a long time, making the first spring in a fatigue state and reducing the protection effect of the protection device. When the cleaning plate swings, it can blow away the dust, and automatically maintain the protection device when the birds land on or fly away from the protection disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the structure of the protection device of the present invention;

[0022] Figure 3 is a schematic diagram of the structure of the maintenance device of the present invention;

[0023] Figure 4 is the present invention Figure 3 schematic diagram of the partial enlarged structure of area A of the present invention;

[0024] Figure 5 is a schematic diagram of the structure of the protection device of the present invention;

[0025] Figure 6 is a schematic diagram of the structure when the present invention is in use;

[0026] Figure 7 is a schematic diagram of the structure of the protection disc of the present invention.

[0027] In the figure: 1. Lightning arrester body; 2. Porcelain insulator; 3. High-voltage wire; 4. Grounding terminal; 5. Connection plate; 61. First spring; 62. Protection plate; 63. Connecting rod; 64. First hinge plate; 65. Pressing plate; 66. Limiting rod; 67. First hinge rod; 68. Support plate; 71. Sliding rod; 72. Limiting column; 73. Second spring; 74. Sliding block; 75. Second hinge rod; 76. Friction ring; 81. Third hinge rod; 82. Slide block; 83. Fourth hinge rod; 84. Second hinge plate; 85. Hinge block; 86. Cleaning plate. Detailed implementation manner

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 - 7 , an embodiment of the present invention is: A lightning arrester with protection ability includes a lightning arrester body 1. A porcelain insulator 2 is fixed on the upper surface of the lightning arrester body 1. A high-voltage wire 3 passes through the porcelain insulator 2 and is fixedly connected at the passing-through part. A grounding terminal 4 is fixed on the lower surface of the lightning arrester body 1. A connection plate 5 is fixed on the upper surface of the porcelain insulator 2. A protection device for preventing birds from dragging the high-voltage wire 3 is arranged on the upper surface of the connection plate 5.

[0030] Among them, the protection device includes a first spring 61, a protection disc 62, a connecting rod 63, a first hinge plate 64, a pressing plate 65, a limiting rod 66, a first hinge rod 67 and a supporting plate 68. The first spring 61 is fixedly connected to the upper surface of the connecting disc 5, and the protection disc 62 is fixedly connected to the end of the first spring 61 away from the connecting disc 5. When a bird lands on the protection disc 62, the protection disc 62 slides downward under gravity and simultaneously compresses the first spring 61. The connecting rod 63 is fixedly connected to the upper surface of the connecting disc 5. The connecting rod 63 passes through the protection disc 62, and the passing part is slidably connected. When the protection disc 62 slides downward, since the connecting disc 5 is fixed, the distance between the protection disc 62 and the connecting disc 5 becomes shorter, and the connecting rod 63 moves upward relative to the pressing plate 65. The first hinge plate 64 is hinged to the end of the connecting rod 63 away from the connecting disc 5. When the connecting rod 63 moves upward, it drives the end of the first hinge plate 64 hinged thereto to move upward. The outer wall of the pressing plate 65 is hinged to the end of the first hinge plate 64 away from the connecting rod 63. Also, the hinge point between the first hinge plate 64 and the pressing plate 65 remains unchanged relative to the pressing plate 65. Therefore, when the end of the first hinge plate 64 hinged to the connecting rod 63 moves upward, the first hinge plate 64 also rotates. A guiding strip is fixed on the upper surface of the protection disc 62. The guiding strip passes through the pressing plate 65, and the passing part is slidably connected. When the protection disc 62 slides downward, it drives the pressing plate 65 to move downward. The rotation of the first hinge plate 64 pushes the pressing plate 65 to slide along the guiding strip towards the center of the protection disc 62, so that the pressing plate 65 closes and surrounds the high-voltage wire 3. The limiting rod 66 is fixedly connected to the outer wall of the pressing plate 65. When the two pressing plates 65 slide towards the center of the protection disc 62, the distance between the two pressing plates 65 becomes shorter. The sliding of the pressing plate 65 drives the limiting rod 66 to move. The limiting rod 66 passes through one end of the first hinge rod 67, and the passing part is rotatably connected. When the limiting rods 66 approach each other, they drive the first hinge rod 67 to move. The other ends of the two first hinge rods 67 are hinged to each other. When the first hinge rods 67 approach each other, the first hinge rods 67 also rotate, so that the hinge point of the two first hinge rods 67 moves upward. The hinge point of the two first hinge rods 67 is hinged to the bottom surface of the supporting plate 68. When the hinge point of the two first hinge rods 67 moves upward, it drives the supporting plate 68 to move upward to support the high-voltage wire 3. A guiding rod is fixed on the bottom surface of the supporting plate 68. The guiding rod passes through the protection disc 62, and the passing part is slidably connected, preventing the supporting plate 68 from rotating when moving upward and being unable to support the high-voltage wire 3. When a bird lands on the protection disc 62, the protection device cooperates with the connecting rod 63 fixed on the upper surface of the connecting disc 5 to push the first hinge plate 64 to rotate. The rotation of the first hinge plate 64 pushes the pressing plates 65 to approach each other, tightly protecting the high-voltage wire 3, preventing the bird from pulling the high-voltage wire 3 when on the protection disc 62, causing damage to the high-voltage wire 3 and resulting in accidents;While protecting the high-voltage line 3, the limiting rod 66 drives the first hinge rod 67 to move, so that the first hinge rod 67 pushes the support plate 68 to rise, supporting the bent part of the high-voltage line 3, preventing flying birds from pulling the high-voltage line 3 when above the protection disc 62, causing the high-voltage line 3 to be damaged and reducing the service life of the high-voltage line 3.

[0031] When this embodiment works: When connecting the high-voltage line 3 through the center of the protection disc 62 and the connection disc 5 to the device, when a flying bird lands on the protection disc 62, the protection disc 62 slides downward under gravity, compressing the first spring 61. When the protection disc 62 slides downward, it also drives the pressing plate 65 to move downward. Since the connection disc 5 is fixed, the distance between the protection disc 62 and the connection disc 5 becomes shorter, and the connecting rod 63 moves upward relative to the pressing plate 65. The connecting rod 63 drives the first hinge plate 64 to move upward at the end hinged to it. Also, since the hinge point of the first hinge plate 64 and the pressing plate 65 remains unchanged relative to the pressing plate 65, when the end of the first hinge plate 64 hinged to the connecting rod 63 moves upward, the first hinge plate 64 also rotates. The first hinge plate 64 rotates and pushes the pressing plate 65 to slide along the guiding strip towards the center of the protection disc 62 until it fits against the outer wall of the high-voltage line 3. When the two pressing plates 65 slide towards the center of the protection disc 62, the distance between the two groups of pressing plates 65 becomes smaller. The sliding of the pressing plate 65 drives the limiting rod 66 to move. When the limiting rods 66 approach each other, they drive the first hinge rod 67 to move. Since the first hinge rods 67 are hinged to each other, when the first hinge rods 67 approach each other, the first hinge rods 67 also rotate, causing the hinge points of the two groups of first hinge rods 67 to move upward. When the hinge points of the two groups of first hinge rods 67 move upward, they drive the support plate 68 to move upward to support the high-voltage line 3. When the flying bird above the protection disc 62 flies away, the protection disc 62 slides upward under the thrust of the first spring 61. When the protection disc 62 slides upward, the connecting rod 63 slides downward relative to the protection disc 62. The connecting rod 63 drives the first hinge plate 64 to move downward and rotate at the same time. The rotation of the first hinge plate 64 drives the pressing plate 65 to slide away from the center of the protection disc 62. The pressing plate 65 drives the limiting rods 66 to move away from each other. The limiting rods 66 drive the first hinge rod 67 to rotate, and the first hinge rod 67 drives the support plate 68 to move downward.

[0032] Please refer to Figures 1 - 7, on the basis of the above embodiments, in another embodiment of the present invention, a protection device for driving away flying birds is provided above the protection device. The protection device includes a sliding rod 71, a limiting column 72, a second spring 73, a sliding block 74, a second hinge rod 75 and a friction ring 76. The left end of the sliding rod 71 is hinged to the outer wall of the pressing plate 65. When the pressing plate 65 slides towards the center of the protection disc 62, it drives the end of the sliding rod 71 hinged thereto to move together. The limiting column 72 is fixedly connected to the upper surface of the protection disc 62. The limiting column 72 penetrates through the middle of the sliding rod 71, and the penetration part is slidably connected. When one end of the sliding rod 71 moves, the sliding rod 71 rotates around the limiting column 72. The other end of the sliding rod 71 swings on the protection disc 62. When the sliding rod 71 swings, it sweeps across the protection disc 62 to drive away flying birds. The second spring 73 is fixedly connected to the upper surface of the connecting disc 5. The sliding block 74 is fixedly connected to the end of the second spring 73 away from the connecting disc 5. The sliding block 74 penetrates through the protection disc 62, and the penetration part is slidably connected. When the sliding rod 71 rotates to contact the sliding block 74, it pushes the sliding block 74 to slide downward relative to the protection disc 62. When the sliding block 74 slides downward, it compresses the second spring 73. The inner wall of the sliding block 74 is hinged to one end of the second hinge rod 75. When the sliding block 74 slides downward, it drives the second hinge rod 75 to move downward. The other end of the second hinge rod 75 is hinged to the outer wall of the friction ring 76. The friction ring 76 is made of rubber and is relatively loose when not in use. When the second hinge rod 75 moves downward, it drives the friction ring 76 to move downward. A high-voltage wire passes through the friction ring 76, and the penetration part is in close contact. When the friction ring 76 moves downward, it first contracts, so that the inner wall of the friction ring 76 fits the high-voltage wire 3. When the friction ring 76 moves downward, it pushes the high-voltage wire 3 downward. While protecting the high-voltage wire 3, this protection device drives the sliding rod 71 to move through the pressing plate 65, and cooperates with the limiting column 72 to make the sliding rod 71 rotate and swing above the protection disc 62 to drive away flying birds, avoiding flying birds standing above the protection disc 62 for too long and damaging the high-voltage wire and the equipment; while driving away flying birds, the sliding rod 71 is used to push the sliding block 74 to slide downward, driving the second hinge rod 75 to squeeze the friction ring 76, so that the friction ring 76 fits the high-voltage wire 3, increasing the friction force with the high-voltage wire 3, and pushing the high-voltage wire 3 downward while moving downward, making the connection between the high-voltage wire 3 and the equipment more stable.

[0033] Among them, a maintenance device for maintaining the protection device is provided on the upper surface of the connection disk 5. The maintenance device includes a third hinge rod 81, a slider 82, a fourth hinge rod 83, a second hinge plate 84, a hinge block 85 and a cleaning plate 86. One end of the third hinge rod 81 is hinged to the outer wall of the friction ring 76. When the friction ring 76 moves downward, it drives the end of the third hinge rod 81 hinged thereto to move downward. When the end of the third hinge rod 81 away from the slider 82 moves downward, it also rotates. The other end of the third hinge rod 81 is hinged to the upper surface of the slider 82. The slider 82 is slidably connected to the upper surface of the connection disk 5. The rotation of the third hinge rod 81 pushes the slider 82 to slide. One end of the fourth hinge rod 83 is hinged to the upper surface of the slider 82. When the slider 82 slides, it drives the end of the fourth hinge rod 83 hinged thereto to move. The other end of the fourth hinge rod 83 is hinged to the bottom end of the second hinge plate 84. When the fourth hinge rod 83 moves, it pushes the end of the second hinge plate 84 hinged thereto to move. The hinge block 85 is fixedly connected to the outer wall of the protection disk 62. The hinge block 85 penetrates the second hinge plate 84, and the penetration part is slidably connected. When the bottom end of the second hinge plate 84 moves, the second hinge plate 84 also rotates around the hinge block 85. The cleaning plate 86 is fixedly connected to the upper end of the second hinge plate 84. When the second hinge plate 84 rotates, it drives the cleaning plate 86 to swing, fanning the upper part of the protection disk 62. This maintenance device drives the third hinge rod 81 to rotate through the friction ring 76. The third hinge rod 81 drives the slider 82 to slide. The slider 82 cooperates with the fourth hinge rod 83 and the hinge block 85 to push the second hinge plate 84 to rotate. When the second hinge plate 84 rotates, it can drive the cleaning plate 86 to swing and swing above the protection disk 62. Since the dust in the outdoor environment is relatively large and this device is installed outdoors for a long time, it may cause a large amount of dust to accumulate on the protection disk 62, pressing the protection disk 62 downward, resulting in the first spring 61 in the protection device being in a working state for a long time, making the first spring 61 in a fatigue state and reducing the protection effect of the protection device. When the cleaning plate 86 swings, it can blow away the dust, automatically maintaining the protection device when birds land on or fly away from the protection disk 62.

[0034] During the operation of this embodiment: when the pressing plate 65 slides towards the center of the protection disc 62, it drives the moving of one end of the sliding rod 71 hinged thereto. Since the sliding rod 71 is penetrated by the limiting column 72, when one end of the sliding rod 71 moves, the sliding rod 71 will rotate around the limiting column 72. The other end of the sliding rod 71 swings on the protection disc 62. When the sliding rod 71 rotates to contact the sliding block 74, it pushes the sliding block 74 to slide downward relative to the protection disc 62. When the sliding block 74 slides downward, it compresses the second spring 73, and at the same time drives the second hinge rod 75 to move downward. When the second hinge rod 75 moves downward, it drives the friction ring 76 to move downward, and the friction ring 76 pushes the high-voltage wire downward. When the sliding rod 71 drives the birds above the protection disc 62 to fly away, when the protection disc 62 slides upward under the elastic force of the first spring 61, the pressing plate 65 drives the sliding rod 71 to slide, and the sliding rod 71 rotates and resets around the limiting column 72. The sliding block 74 no longer receives the thrust of the sliding rod 71 and slides upward under the thrust of the second spring 73. When the sliding block 74 slides upward, it drives the second hinge rod 75 to move upward, and the second hinge rod 75 moving upward drives the friction ring 76 to move upward.

[0035] When the friction ring 76 moves downward, it drives the third hinge rod 81 and one end thereof hinged thereto to move downward. Also, the slider 82 slides on the upper surface of the connecting disc 5, and the third hinge rod 81 is hinged thereto. Therefore, when the end of the third hinge rod 81 away from the slider 82 moves downward, it also rotates. The third hinge rod 81 rotates to push the slider 82 to slide. When the slider 82 slides, it drives the fourth hinge rod 83 and one end thereof hinged thereto to move. When the fourth hinge rod 83 moves, it pushes the second hinge plate 84 and one end thereof hinged thereto to move. Since the middle part of the second hinge plate 84 is penetrated by the hinge block 85, when the bottom end of the second hinge plate 84 moves, the second hinge plate 84 also rotates around the hinge block 85. When the second hinge plate 84 rotates, it drives the cleaning plate 86 to swing and fan the upper part of the protection disc 62.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightning arrester with protection capability, comprising a lightning arrester body (1), characterized in that: A porcelain insulator (2) is fixed on the upper surface of the arrester body (1), a high-voltage line (3) is passed through the porcelain insulator (2) and is fixedly connected at the passing point, a grounding terminal (4) is fixed on the lower surface of the arrester body (1), a connecting plate (5) is fixed on the upper surface of the porcelain insulator (2), a protective device for preventing birds from dragging the high-voltage line (3) is arranged on the upper surface of the connecting plate (5), a protective device for expelling birds is arranged above the protective device, and a maintenance device for maintaining the protective device is arranged on the upper surface of the connecting plate (5); The protective device comprises a first spring (61), a protective plate (62), a connecting rod (63), a first hinged plate (64), a clamping plate (65), a limiting rod (66), a first hinged rod (67) and a support plate (68); the first spring (61) is fixedly connected to the upper surface of the connecting plate (5); the protective plate (62) is fixedly connected to one end of the first spring (61) away from the connecting plate (5); and the connecting rod (63) is fixedly connected to the upper surface of the connecting plate (5).

2. A lightning arrester with protection capability according to claim 1, characterized in that: The connecting rod (63) passes through the protective plate (62) and is slidably connected at the penetration point. The first hinged plate (64) is hinged at the end of the connecting rod (63) away from the connecting plate (5). The outer wall of the clamping plate (65) is hinged to the end of the first hinged plate (64) away from the connecting rod (63). A guide bar is fixed on the upper surface of the protective plate (62). The guide bar passes through the clamping plate (65) and is slidably connected at the penetration point.

3. A lightning arrester with protection capability according to claim 2, characterized in that: The limit rod (66) is fixedly connected to the outer wall of the clamping plate (65), and the limit rod (66) passes through one end of the first hinge rod (67) and is rotatably connected at the penetration point. The other ends of the two groups of the first hinge rods (67) are hinged to each other, and the hinge points of the two groups of the first hinge rods (67) are hinged to the bottom surface of the support plate (68). A guide rod is fixed to the bottom surface of the support plate (68), and the guide rod passes through the protective plate (62) and is slidably connected at the penetration point.

4. A lightning arrester with protection capability according to claim 1, characterized in that: The protection device comprises a sliding rod (71), a limiting column (72), a second spring (73), a sliding block (74), a second hinged rod (75) and a friction ring (76); the left end of the sliding rod (71) is hinged to the outer wall of the pressing plate (65).

5. A lightning arrester with protection capability according to claim 4, characterized in that: The limiting column (72) is fixedly connected to the upper surface of the protective plate (62), and the limiting column (72) passes through the middle of the sliding rod (71) and is slidably connected at the penetration point. The second spring (73) is fixedly connected to the upper surface of the connecting plate (5), and the sliding block (74) is fixedly connected to one end of the second spring (73) away from the connecting plate (5).

6. A lightning arrester with protection capability according to claim 5, characterized in that: The sliding block (74) passes through the protective plate (62) and is slidably connected at the penetration point. The inner wall of the sliding block (74) is hinged to one end of the second hinge rod (75), and the other end of the second hinge rod (75) is hinged to the outer wall of the friction ring (76). A high-voltage wire passes through the friction ring (76) and the penetration point is in close contact.

7. The lightning arrester with protection capability according to claim 1, characterized in that: The maintenance device comprises a third hinge rod (81), a slide block (82), a fourth hinge rod (83), a second hinge plate (84), a hinge block (85) and a cleaning plate (86), wherein one end of the third hinge rod (81) is hinged to the outer wall of the friction ring (76).

8. A lightning arrester with protection capability according to claim 7, characterized in that: The other end of the third hinged rod (81) is hinged to the upper surface of the slider (82), the slider (82) is slidably connected to the upper surface of the connecting plate (5), and one end of the fourth hinged rod (83) is hinged to the upper surface of the slider (82).

9. A lightning arrester with protection capability according to claim 8, characterized in that: The other end of the fourth hinge rod (83) is hinged to the bottom end of the second hinge plate (84), the hinge block (85) is fixedly connected to the outer wall of the protective plate (62), the hinge block (85) passes through the second hinge plate (84), and is slidably connected at the penetration point, and the cleaning plate (86) is fixedly connected to the upper end of the second hinge plate (84).

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