Falling automatic alarm type lightning arrester

Abstract

The invention discloses a drop automatic alarm type lightning arrester, and relates to the technical field of drop type lightning arresters. The lightning arrester is convenient to overhaul and maintain. Comprising a base, a parallelogram telescopic piece is installed at the end of the base, an elastic buckle is fixed to the end of the parallelogram telescopic piece, a lightning arrester body is fixed into the elastic buckle in a clamped mode, a thermal explosion type disconnector is fixed to the bottom of the lightning arrester body, and positioning columns are integrally formed on the two sides of the thermal explosion type disconnector; swing arms are inserted into the outer walls of the positioning columns, and the ends, away from the positioning columns, of the swing arms are movably connected with sliding rods. When a barrier current passes through the thermal explosion type disconnector and reaches a certain value, a shell of the thermal explosion type disconnector is exploded to serve as a triggering mechanism, and after a swing arm breaks limiting between a limiting plate and a sliding sleeve plate, a parallelogram telescopic piece drives a lightning arrester body to fall off; and the clamping column at the top of the lightning arrester main body is disconnected from the bottom of the high-voltage side binding post.

Description

Technical Field

[0001] The present invention relates to the technical field of drop-type lightning arresters, in particular to a drop-type automatic alarm lightning arrester. Background Art

[0002] In the prior art, the drop-out arrester is a distribution-type zinc oxide arrester modified and cleverly installed on the drop-out mechanism of the drop-out fuse, so that the arrester can be easily inspected, repaired and replaced with the help of an insulating switch operating lever without interrupting power supply, which reduces the workload and time of power maintenance personnel and ensures safety during inspection and replacement. However, the existing drop-out arrester cannot give an alarm in time when a fault occurs, and cannot remind maintenance personnel to find the location of the arrester in the first place to inspect or replace it.

[0003] After searching, the Chinese patent application number 201510537451.3 discloses a white-motion alarm drop-type lightning arrester; the lightning arrester includes a silicone rubber pillar, a ceramic mounting seat, a video monitoring device, an upper wiring seat, a lower wiring seat, a lightning arrester body, a contact, a supporting seat, a conductive plate, a support seat, and the rotating block and the support seat are hinged.

[0004] The white-motion alarm drop-type lightning arrester in the above patent has the following shortcomings: although the monitoring device can monitor, alarm and locate the lightning arrester, the dispatcher is still required to confirm and judge whether it has a fault during operation, so it is impossible to intuitively understand whether it has a fault. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a lightning arrester with automatic alarm when falling.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A falling automatic alarm type lightning arrester includes a base, a parallelogram telescopic piece is installed at the end of the base, and an elastic buckle is fixed to the end of the parallelogram telescopic piece, and the lightning arrester body is fixed inside the elastic buckle by a snap-in manner, and a thermal explosion type disconnector is fixed to the bottom of the lightning arrester body, and positioning columns are integrally formed on both sides of the thermal explosion type disconnector, a swing arm is inserted into the outer wall of the positioning column, and the end of the swing arm away from the positioning column is movably connected to a sliding rod, and one end of the sliding rod is movably connected to a limiting plate, and one end of the limiting plate is slidably connected to a sliding sleeve plate, and the limiting plate and the sliding sleeve plate limit the two opposite end points of the parallelogram telescopic piece through the swing arm.

[0008] Preferably: the parallelogram telescopic member includes a fixed column, connecting arm one and connecting arm three, the fixed column is embedded in and fixed to the inner wall of the through hole opened on the side of the base, and connecting arm one is welded to the circumferential outer wall of the fixed column, and connecting arm three and the fixed column are movably connected through a bearing.

[0009] Further: the parallelogram telescopic member also includes connecting arm 2 and connecting arm 4, the connecting arm 3 and connecting arm 2 are connected through rotating shaft 1, and the two ends of the connecting arm 4 are respectively connected to connecting arm 2 and connecting arm 1 through rotating shaft 2 and rotating shaft 3.

[0010] Furthermore: one end of the rotating shaft three is movably connected to the mounting block two, and a sleeve is fixed with a screw at one end of the mounting block two, one end of the rotating shaft is movably connected to the mounting block one, and a driving rod is fixed to the outer wall of one side of the mounting block one, and the driving rod and the sleeve are movably connected, and a spring is clamped and fixed between the inner wall of one side of the driving rod and the inner wall of one side of the sleeve.

[0011] As a preferred solution of the present invention: an alarm is fixed to the bottom of the sleeve, a trigger plate used in conjunction with the drive rod is fixed to one end of the drive rod, and a protective ring is fixed to the inner wall of the sleeve.

[0012] As a further solution of the present invention: a mounting support is welded to the outer wall of the top of the base, and the mounting support is fixed to a composite insulating support by bolts, and a connecting plate is fixed to the top of the composite insulating support by bolts, and a high-voltage side terminal is fixed to the top of the connecting plate by bolts.

[0013] As a further solution of the present invention: an L-shaped plate is welded to the outer wall of the bottom of the connecting plate, and a column is movably connected between the two L-shaped plates, a hook is fixed to the outer wall of the column through a pin, and a slot for cooperating with the hook is provided on the side of the engaging column, a torsion spring is sleeved on the outer wall of the column, and the two ends of the torsion spring are respectively fixed to the side wall of the L-shaped plate and the outer wall of the column.

[0014] On the basis of the above-mentioned solution: a pad is welded on the outer wall of the limiting plate, and a connecting plate is welded on the side wall of the hook, and the connecting plate and the pad are connected by a pull rope.

[0015] On the basis of the above-mentioned solution: a locking column is fixed on the top of the arrester body, and a pull ring is sleeved on the outer wall of the locking column.

[0016] Based on the above solution: limiting blocks are fixed on the outer walls on both sides of the base.

[0017] The beneficial effects of the present invention are:

[0018] 1. A lightning arrester with automatic alarm when falling, which uses the trigger mechanism that when the barrier current passes through the thermal explosion disconnector and reaches a certain value, the shell of the thermal explosion disconnector will explode. After the swing arm disconnects the limit between the limit plate and the sliding plate, the parallelogram telescopic part drives the lightning arrester body to fall, so that the locking column on the top of the lightning arrester body and the bottom of the high-voltage side terminal are disconnected.

[0019] 2. A lightning arrester with automatic alarm when falling, which uses the deformation of the parallelogram telescopic part to make the driving rod and the sleeve move relative to each other. When the trigger plate and the alarm come into contact, the alarm signal is fed back to the terminal through wireless transmission, and the terminal is used to remind maintenance personnel to inspect, maintain or replace the main body of the lightning arrester.

[0020] 3. A lightning arrester with automatic alarm when falling, which can be engaged with the main body of the lightning arrester by providing an elastic buckle, thereby improving the installation efficiency of the main body of the lightning arrester and making it easy to remove the main body of the lightning arrester from the elastic buckle when the main body of the lightning arrester needs to be replaced.

[0021] 4. A lightning arrester with automatic alarm when falling. When the shell of the thermal explosion disconnector explodes, the connecting plate and the hook are pulled by a pull rope. As the plug-in column rotates along the L-shaped plate, the hook is disengaged from the slot opened on the side of the locking column, releasing the limit on the locking column.

[0022] 5. A lightning arrester with automatic alarm when falling, which uses two limit blocks to limit the elastic buckle from the side, to ensure that after the elastic buckle fixes the lightning arrester body, the lightning arrester body is prevented from detaching from the elastic buckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a drop automatic alarm type lightning arrester proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the installation structure of the top limiter of a drop automatic alarm type lightning arrester proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of the main body installation structure of a drop automatic alarm type lightning arrester proposed by the present invention;

[0026] Figure 4 This is a schematic diagram of the explosion structure of the main body installation of a drop automatic alarm type lightning arrester proposed by the present invention;

[0027] Figure 5 This is a schematic diagram of the main structure of the support member of a drop automatic alarm type lightning arrester proposed by the present invention;

[0028] Figure 6This is a partial structural diagram of a support member of a drop automatic alarm type lightning arrester proposed by the present invention;

[0029] Figure 7 The present invention provides a schematic diagram of the main structure of a top limiter of an automatic drop alarm type lightning arrester.

[0030] In the figure: composite insulating pillar 1; mounting pillar 2; limit block 3; lightning arrester body 4; pull ring 5; high-voltage side terminal 6; connecting plate 7; connecting plate 8; locking column 9; pull rope 10; thermal explosion type disconnector 11; positioning column 12; elastic buckle 13; fixing column 14; connecting arm 15; limit plate 16; pad 17; slide rod 18; sliding plate 19; swing arm 20; connecting arm 21; connecting arm 32; base 23; mounting block 1 24; connecting arm 4 25; spring 26; trigger plate 27; protective ring 28; mounting block 29; alarm 30; sleeve 31; drive rod 32; torsion spring 33; L-shaped plate 34; plug column 35; hook 36. DETAILED DESCRIPTION

[0031] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0032] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] A lightning arrester with automatic alarm when falling, such as Figures 1 to 7 As shown, it includes a base 23, a parallelogram telescopic member is installed at the end of the base 23, and an elastic buckle 13 is fixed to the end of the parallelogram telescopic member, and the arrester body 4 is fixed inside the elastic buckle 13 by a snap-in manner, and a thermal explosion type disconnector 11 is fixed to the bottom of the arrester body 4, and positioning columns 12 are integrally formed on both sides of the thermal explosion type disconnector 11, and a swing arm 20 is inserted into the outer wall of the positioning column 12, and the end of the swing arm 20 away from the positioning column 12 is movably connected to the sliding rod 18, and one end of the sliding rod 18 is movably connected to the limiting plate 16, and one end of the limiting plate 16 is slidably connected to the sliding sleeve plate 19, and the limiting plate 16 and the sliding sleeve plate 19 limit the two opposite end points of the parallelogram telescopic member through the swing arm 20;

[0034] When the arrester body 4 needs to be installed, the elastic buckle 13 is a "C"-shaped structure and has a certain elasticity, so that the arrester body 4 can be quickly installed after being inserted into the bayonet on the elastic buckle 13, thereby improving the efficiency of disassembly and assembly of the arrester body 4. The parallelogram telescopic member plays a connecting role between the elastic buckle 13 and the base 23. When the two opposite end points of the parallelogram telescopic member are not limited, the parallelogram telescopic member is unstable. Therefore, when the arrester body 4 is engaged with the elastic buckle 13, it is necessary to ensure that the arrester body 4, align the socket at one end of the swing arm 20 with the positioning column 12, and after alignment, slide the swing arm 20 along the slide rod 18 so that the socket on the swing arm 20 is inserted into the positioning column 12, and use the positioning column 12 to support the swing arm 20. At this time, since the positioning column 12 supports the swing arm 20, the swing arm 20 limits the position between the limit plate 16 and the sliding sleeve plate 19, and the limit plate 16 and the sliding sleeve plate 19 cannot slide relative to each other, that is, the total length between the limit plate 16 and the sliding sleeve plate 19 is fixed at this time, so that the shape of the parallelogram telescopic member does not change;

[0035] During use, when the fault current of the lightning arrester main body 4 passes through the thermal explosion type disconnector 11 and reaches a certain value, an arc will be generated inside the gap of the discharge capacitor. At the same time, the fast heating resistor inside the thermal explosion type disconnector 11 is heated, generating heat to cause the gunpowder near the discharge gap to explode, quickly detonating the thermal explosion type disconnector 11 air burst tube, causing the thermal explosion type disconnector 11 shell to explode. During the explosion process, the thermal explosion type disconnector 11 shell will explode and break together with the positioning column 12. Therefore, when the positioning column 12 explodes and breaks, it is impossible to support and limit the swing arm 20. Therefore, the swing arm 20 will adjust its posture. Since the limit plate 16 is no longer limited by the swing arm 20, the limit plate 16 and the sliding sleeve plate 19 slide relative to each other, and the parallelogram telescopic member is deformed, causing the lightning arrester main body 4 to fall downward under the action of its own gravity.

[0036] Furthermore, the parallelogram telescopic member includes a fixed column 14, a connecting arm 15 and a connecting arm 3 22, the fixed column 14 is embedded in the inner wall of the through hole opened on the side of the base 23, and the connecting arm 15 is welded to the circumferential outer wall of the fixed column 14, and the connecting arm 3 22 and the fixed column 14 are rotatably connected through a bearing, the parallelogram telescopic member also includes a connecting arm 21 and a connecting arm 4 25, the connecting arm 3 22 and the connecting arm 2 21 are connected through a rotating shaft 1, the two ends of the connecting arm 4 25 are respectively connected to the connecting arm 2 21 and the connecting arm 1 15 through the rotating shaft 2 and the rotating shaft 3, the rotating shaft 2 and the limit plate 16 are rotatably connected, and one end of the sliding plate 19 and the fixed column 14 are rotatably connected through a bearing, and the connecting arm 2 21 and the elastic buckle 13 are welded and fixed;

[0037] Since connecting arm 15 is fixedly connected between the fixed column 14 and the base 23, when the swing arm 20 no longer limits the position between the limit plate 16 and the sliding plate 19, the connecting arm 2 21 is deformed by the connecting arm 4 25 and the connecting arm 3 22, so that the lightning arrester body 4 falls under the action of its own gravity.

[0038] Furthermore, the three ends of the rotating shaft are rotatably connected to the mounting block 29, and a sleeve 31 is screwed to one end of the mounting block 29, and one end of the rotating shaft is rotatably connected to the mounting block 1 24, and a driving rod 32 is fixed to the outer wall of one side of the mounting block 1 24 by screws, and the driving rod 32 and the sleeve 31 are slidably connected, a spring 26 is clamped and fixed between the inner wall of one side of the driving rod 32 and the inner wall of one side of the sleeve 31, and an alarm 30 is fixed to the bottom of the sleeve 31, and a trigger plate 27 used in conjunction with the driving rod 32 is fixed to one end of the driving rod 32, and a protective ring 28 is fixed to the inner wall of the circumference of the sleeve 31 by screws;

[0039] When the arrester body 4 falls, the posture of the connecting arm 21 relative to the connecting arm 15 changes, thereby changing the straight-line distance between the mounting block 1 24 and the mounting block 2 29. During this process, the driving rod 32 slides relative to the sleeve 31, causing the trigger plate 27 to move toward the direction close to the alarm 30. When the trigger plate 27 and the alarm 30 contact each other, the alarm 30 is triggered to turn on. The alarm 30 feeds back the alarm signal to the terminal via wireless transmission, and the terminal is used to remind maintenance personnel to repair, maintain or replace the arrester body 4. The protective ring 28 can limit the maximum moving distance of the trigger plate 27, protect the alarm 30, and prevent the trigger plate 27 from applying excessive pressure on the alarm 30, causing damage to the alarm 30. The spring 26 provides a buffer for the arrester body 4 when it falls.

[0040] Furthermore, a mounting support 2 is welded to the outer wall of the top of the base 23, and the mounting support 2 is fixed to the composite insulating support 1 by bolts, and a connecting plate 7 is fixed to the top of the composite insulating support 1 by bolts, and a high-voltage side terminal 6 is fixed to the top of the connecting plate 7 by bolts, and a clamping column 9 is fixed to the top of the arrester body 4, and a pull ring 5 is sleeved on the outer wall of the clamping column 9;

[0041] When the arrester body 4 is in use, the parallelogram telescopic member supports the arrester body 4 so that the top of the locking column 9 contacts the bottom of the high-voltage side terminal 6. When lightning strikes, the arrester body 4 is used to conduct the high-voltage impact current into the ground.

[0042] Furthermore, an L-shaped plate 34 is welded to the outer wall of the bottom of the connecting plate 7, and a plug post 35 is rotatably connected between the two L-shaped plates 34. A hook 36 is fixed to the outer wall of the circumference of the plug post 35 by a pin, and a slot for cooperating with the hook 36 is opened on the side of the engaging column 9. A torsion spring 33 is sleeved on the outer wall of the plug post 35, and the two ends of the torsion spring 33 are respectively fixed to the side wall of the L-shaped plate 34 and the outer wall of the circumference of the plug post 35;

[0043] When it is necessary to ensure the stability between the locking column 9 and the high-voltage side terminal 6, the end of the hook 36 is inserted into the slot opened on the side of the locking column 9, and the locking column 9 is hooked with the hook 36 to ensure that the high-voltage side terminal 6 and the locking column 9 are connected and fixed.

[0044] Furthermore, a backing plate 17 is welded to the outer wall of the limit plate 16, and a connecting plate 8 is welded to the side wall of the hook 36, and the connecting plate 8 and the backing plate 17 are connected by a pull rope 10;

[0045] In the initial stage, the torsion force of the torsion spring 33 is used to make the end of the hook 36 hook the locking column 9 through the slot opened on the side of the locking column 9, so that the hook 36 is used to limit the locking column 9. When the shell of the thermal explosion disconnector 11 explodes, the lightning arrester body 4 falls under the action of its own gravity and the pull rope 10 is used to pull the connecting plate 8 and the hook 36. During the rotation of the plug post 35 along the L-shaped plate 34, the hook 36 is disengaged from the slot opened on the side of the locking column 9. The length of the slot is greater than the length of the end of the hook 36, so that the hook 36 has a certain amount of activity in the slot, thereby preventing the lightning arrester body 4 from being stuck by the slot during the falling process. The hook 36 can be used in conjunction with the parallelogram telescopic member to support the lightning arrester body 4, thereby sharing the pressure on the parallelogram telescopic member.

[0046] Furthermore, the outer walls on both sides of the base 23 are fixed with limit blocks 3 by screws;

[0047] After the elastic buckle 13 is clamped to the arrester body 4, the parallelogram telescopic part stably supports the elastic buckle 13 and the arrester body 4, and then the two limit blocks 3 are used to limit the elastic buckle 13 from the side direction to ensure the stability of the elastic buckle 13 after fixing the arrester body 4.

[0048] When the present embodiment is in use, when the fault current of the arrester body 4 passes through the thermal explosion type disconnector 11 and reaches a certain value, an arc will be generated inside the gap of the discharge capacitor, and at the same time, the fast heating resistor inside the thermal explosion type disconnector 11 will be heated, generating heat to make the gunpowder near the discharge gap explode, quickly detonating the thermal explosion type disconnector 11 air burst tube, causing the thermal explosion type disconnector 11 shell to explode, and the thermal explosion type disconnector 11 shell will explode and break together with the positioning column 12 during the explosion process. Therefore, when the positioning column 12 explodes and breaks, it is unable to support and limit the swing arm 20, thereby causing relative displacement between the limiting plate 16 and the sliding sleeve plate 19, thereby causing the parallelogram telescopic member to deform, and at the same time utilizing The pull rope 10 pulls the connecting plate 8 and the hook 36. During the rotation of the plug post 35 along the L-shaped plate 34, the hook 36 is disengaged from the slot opened on the side of the locking post 9. When the lightning arrester body 4 falls, the posture of the connecting arm 21 relative to the connecting arm 15 changes, thereby causing the straight-line distance between the mounting block 1 24 and the mounting block 2 29 to change. The trigger plate 27 moves toward the direction close to the alarm 30. When the trigger plate 27 and the alarm 30 contact each other, the alarm 30 is triggered to turn on. The alarm 30 feeds back the alarm signal to the terminal through wireless transmission, and uses the terminal to remind maintenance personnel to inspect, maintain or replace the lightning arrester body 4.

[0049] The above is a preferred specific embodiment of the present invention, and the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the field within the technical scope disclosed by the present invention in combination with existing technologies or public common sense, within the spirit and principles of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A lightning arrester with automatic alarm when falling, comprising a base (23), characterized in that: A parallelogram telescopic member is installed at the end of the base (23), and an elastic buckle (13) is fixed at the end of the parallelogram telescopic member, and the arrester body (4) is fixed inside the elastic buckle (13) by snapping, and a thermal explosion type disconnector (11) is fixed at the bottom of the arrester body (4), and positioning columns (12) are integrally formed on both sides of the thermal explosion type disconnector (11), and a swing arm (20) is inserted into the outer wall of the positioning column (12), and the end of the swing arm (20) away from the positioning column (12) is movably connected to a sliding rod (18), and one end of the sliding rod (18) is movably connected to a limiting plate (16), and one end of the limiting plate (16) is slidably connected to a sliding plate (19), and the limiting plate (16) and the sliding plate (19) limit the two opposite end points of the parallelogram telescopic member through the swing arm (20).

2. The automatic alarm type lightning arrester according to claim 1, characterized in that: The parallelogram telescopic member comprises a fixed column (14), a connecting arm 1 (15) and a connecting arm 3 (22); the fixed column (14) is embedded in the inner wall of a through hole opened on the side of the base (23), and the connecting arm 1 (15) is welded to the outer wall of the circumference of the fixed column (14); and the connecting arm 3 (22) and the fixed column (14) are movably connected through a bearing.

3. The automatic alarm type lightning arrester according to claim 2, characterized in that: The parallelogram telescopic member further comprises a connecting arm 2 (21) and a connecting arm 4 (25), wherein the connecting arm 3 (22) and the connecting arm 2 (21) are connected via a rotating shaft 1, and the two ends of the connecting arm 4 (25) are respectively connected via the rotating shaft 2 and the rotating shaft 3 to the connecting arm 2 (21) and the connecting arm 1 (15).

4. The automatic alarm type lightning arrester according to claim 3, characterized in that: One end of the rotating shaft 3 is movably connected to the mounting block 2 (29), and one end of the mounting block 2 (29) is screwed with a sleeve (31), one end of the rotating shaft is movably connected to the mounting block 1 (24), and a driving rod (32) is fixed to the outer wall of one side of the mounting block 1 (24), and the driving rod (32) and the sleeve (31) are movably connected, and a spring (26) is clamped and fixed between the inner wall of one side of the driving rod (32) and the inner wall of one side of the sleeve (31).

5. The automatic alarm type lightning arrester according to claim 4, characterized in that: An alarm (30) is fixed to the bottom of the sleeve (31), a trigger plate (27) used in conjunction with the drive rod (32) is fixed to one end of the drive rod (32), and a protective ring (28) is fixed to the inner wall of the sleeve (31).

6. The automatic alarm type lightning arrester according to claim 5, characterized in that: A mounting support (2) is welded to the outer wall of the top of the base (23), and the mounting support (2) is fixed to the composite insulating support (1) by bolts, and a connecting plate (7) is fixed to the top of the composite insulating support (1) by bolts, and a high-voltage side terminal (6) is fixed to the top of the connecting plate (7) by bolts.

7. The automatic alarm type lightning arrester according to claim 6, characterized in that: An L-shaped plate (34) is welded to the outer wall of the bottom of the connecting plate (7), and a plug post (35) is movably connected between the two L-shaped plates (34). A hook (36) is fixed to the circumferential outer wall of the plug post (35) through a pin, and a slot for use with the hook (36) is provided on the side of the engaging column (9). A torsion spring (33) is sleeved on the outer wall of the plug post (35), and the two ends of the torsion spring (33) are respectively fixed to the side wall of the L-shaped plate (34) and the circumferential outer wall of the plug post (35).

8. The automatic alarm type lightning arrester according to claim 7, characterized in that: A backing plate (17) is welded to the outer wall of the limiting plate (16), and a connecting plate (8) is welded to the side wall of the hook (36), and the connecting plate (8) and the backing plate (17) are connected via a drawstring (10).

9. The automatic alarm type lightning arrester according to claim 8, characterized in that: A snap-fit ​​column (9) is fixed on the top of the arrester body (4), and a pull ring (5) is sleeved on the outer wall of the snap-fit ​​column (9).

10. The automatic alarm type lightning arrester according to claim 9, characterized in that: Limiting blocks (3) are fixed to the outer walls on both sides of the base (23).

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