CN211556822U

CN211556822U - Video circuit lightning protection device

Info

Publication number: CN211556822U
Application number: CN202020524925.7U
Authority: CN
Inventors: 吴子佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-11
Filing date: 2020-04-11
Publication date: 2020-09-22
Anticipated expiration: 2030-04-11

Abstract

The utility model discloses a video circuit lightning protection device, which comprises a first shell, a second shell and a fixing mechanism, wherein the outer parts of the first shell and the second shell are clamped with a clamp, an inner cavity is arranged inside the first shell and the second shell, the top parts of the first shell and the second shell are provided with a lightning receiving plate, the bottom part of the lightning receiving plate penetrates into the inner cavity and is communicated with at least six groups of valve sheet resistors, a zinc oxide plate is arranged between two adjacent groups of the valve sheet resistors, the bottom part of the valve sheet resistor is provided with a valve core, the other end of the valve core is communicated with a lead wire, an insulating mounting plate is fixed on the outer wall of the right side of the second shell through screws, a connecting plate is arranged on the right side of the insulating mounting plate, a first mounting block is fixed on the right side of the connecting plate through welding, a second mounting block is fixedly connected in the first mounting block through four groups of fixing mechanisms, and the potential safety hazard is reduced.

Description

Video circuit lightning protection device

Technical Field

The utility model relates to a lightning protection device technical field specifically is a video circuit lightning protection device.

Background

The lightning protector is an electric appliance which is used for protecting electrical equipment from being damaged by high transient overvoltage during lightning stroke, limiting follow current time and normally limiting follow current amplitude, is sometimes called as an overvoltage protector and an overvoltage limiter, is used for protecting the insulation of alternating current power transmission and transformation equipment from being damaged by lightning overvoltage and operation overvoltage, is suitable for overvoltage protection of transformers, power transmission lines, power distribution cabinets, switch cabinets, power metering boxes, vacuum switches, parallel compensation capacitors, rotating motors, semiconductor devices and the like, is in outdoor operation and is often influenced by severe weather and bird excrement, thereby reducing the lightning protection effect of the lightning protection device, and the existing lightning protection device has insufficient fixity with the main equipment, after long-time use, the lightning protection device can be caused to move and even fall off, thereby bringing about serious potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a video circuit lightning protection device, which utilizes nano carbon as the left and right splicing of a first shell and a second shell of materials, then two groups of shells are firmly fixed by sealant and a clamp, thereby avoiding the influence of sunlight irradiation, rainwater and bird droppings on the lightning protection device, ensuring the heat dissipation in an inner cavity by the shells made of the nano carbon material, greatly improving the lightning protection effect of the lightning protection device, forming fixed connection between a main support frame and the lightning protection device under the action of a first mounting block, a second mounting block and four groups of fixing mechanisms, mounting the device on an external main device by the main support frame, greatly increasing the fixity, simultaneously utilizing an insulating mounting plate made of the materials after the high temperature fusion of polyethylene and polyamide, avoiding the connection part from being influenced by lightning stroke and accelerating oxidation, prolonging the service life of the first mounting block, the second mounting block and the main support frame to a certain extent, the risk that the lightning protection device is displaced and falls off is avoided, the potential safety hazard is greatly reduced, and the problem provided in the background technology is solved.

In order to achieve the above object, the utility model provides a following technical scheme:

a video circuit lightning protection device comprises a first shell, a second shell and a fixing mechanism, wherein sealant is arranged at the joint of the first shell and the second shell, a clamp is clamped outside the first shell and the second shell, an inner cavity is formed inside the first shell and the second shell, a lightning receiving plate is arranged at the top of the first shell and the second shell, the bottom of the lightning receiving plate penetrates into the inner cavity and is communicated with at least six groups of valve sheet resistors, a zinc oxide plate is arranged between two adjacent groups of the valve sheet resistors, a valve core is arranged at the bottom of the valve sheet resistors, the other end of the valve core penetrates outside the inner cavity and is communicated with a lead, the other end of the lead penetrates underground, an insulating mounting plate is fixed on the outer wall of the right side of the second shell through a screw, a connecting plate is arranged on the right side of the insulating mounting plate, and a first mounting block is fixed on the right side of the connecting plate through welding, the first mounting block is internally and fixedly connected with a second mounting block through four groups of fixing mechanisms, and the right side of the second mounting block is fixedly provided with a general support frame through welding.

Preferably, the fixing mechanism comprises a fixing bolt and a fixing nut, the nut of the fixing bolt is located on the outer wall of the first installation block, the other end of the fixing bolt sequentially penetrates through the first installation block and the second installation block, the fixing nut is in threaded connection with the fixing bolt, and the fixing nut abuts against the inner wall of the second installation block.

Preferably, a set of insulating gasket is sleeved on each of the four sets of fixing bolts, and the insulating gasket is located at the joint of a nut of the fixing bolt and the outer wall of the first mounting block.

Preferably, the outer wall of the connecting plate is coated with an insulating coating.

Preferably, a sealing ring is arranged at the joint of the lightning receiving plate and the inner wall of the inner cavity.

Preferably, a set of heat dissipation holes are respectively formed in the outer walls of the front ends of the first shell and the second shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the first shell and the second shell which are made of the nano carbon are spliced left and right, and then the two groups of shells are firmly fixed through the sealing adhesive and the clamp, so that the influence of sunlight irradiation, rainwater and bird droppings on the lightning protection device is avoided, the heat dissipation in the inner cavity is ensured through the shells made of the nano carbon, and the lightning protection effect of the lightning protection device is greatly improved;

2. under the effect through first installation piece and second installation piece and four fixed establishment of group, form fixed connection between total support frame and the lightning protection device, the device is installed on outside main equipment through total support frame of rethread, greatly increased the fixity, utilize the insulating mounting panel of making with the material after polyethylene and polyamide high temperature fuse simultaneously, avoided the connection position to receive the influence of thunderbolt and oxidation with higher speed, certain extension the life of first installation piece and second installation piece and total support frame, the risk that the displacement drops has been avoided the lightning protection device to take place, greatly reduced the potential safety hazard.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic top view of the connection plate and the first mounting block of the present invention.

In the figure: 1. a first housing; 2. a second housing; 3. sealing glue; 4. clamping a hoop; 5. a lightning receiving plate; 6. an inner cavity; 7. a valve plate resistance; 8. a zinc oxide plate; 9. a valve core; 10. a lead wire; 11. an insulating mounting plate; 12. a connecting plate; 13. a first mounting block; 14. a second mounting block; 15. a fixing mechanism; 151. fixing the bolt; 152. fixing a nut; 16. a total support frame; 17. an insulating spacer; 18. an insulating coating; 19. a seal ring; 20. and (4) heat dissipation holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a video circuit lightning protection device comprises a first shell 1, a second shell 2 and a fixing mechanism 15, wherein sealant 3 is arranged at the joint of the first shell 1 and the second shell 2, a clamp 4 is clamped outside the first shell 1 and the second shell 2, inner cavities 6 are arranged inside the first shell 1 and the second shell 2, lightning receiving plates 5 are arranged at the tops of the first shell 1 and the second shell 2, the bottoms of the lightning receiving plates 5 penetrate into the inner cavities 6 and are communicated with at least six groups of valve sheet resistors 7, a zinc oxide plate 8 is arranged between the upper and lower adjacent two groups of valve sheet resistors 7, a valve core 9 is arranged at the bottom of each valve sheet resistor 7, the other end of the valve core 9 penetrates outside the inner cavities 6 and is communicated with a lead 10, the other end of the lead 10 penetrates underground, a sealing ring 19 is arranged at the joint of the lightning receiving plates 5 and the inner walls of the inner cavities 6, rainwater can be prevented from entering the inner cavities 6 from the joint of the lightning receiving plates 5 and the, the front outer walls of the first shell 1 and the second shell 2 are respectively provided with a group of heat dissipation holes 20, so that the heat dissipation speed of the first shell 1 and the second shell can be further enhanced.

An insulating mounting plate 11 is fixed on the outer wall of the right side of the second shell 2 through screws, a connecting plate 12 is arranged on the right side of the insulating mounting plate 11, a first mounting block 13 is fixed on the right side of the connecting plate 12 through welding, a second mounting block 14 is fixedly connected in the first mounting block 13 through four groups of fixing mechanisms 15, each fixing mechanism 15 comprises a fixing bolt 151 and a fixing nut 152, a nut of each fixing bolt 151 is positioned on the outer wall of the corresponding first mounting block 13, the other end of each fixing bolt 151 sequentially penetrates through the corresponding first mounting block 13 and the corresponding second mounting block 14, each fixing nut 152 is in threaded connection with the corresponding fixing bolt 151, the corresponding fixing nut 152 abuts against the inner wall of the corresponding second mounting block 14, a group of insulating gaskets 17 is sleeved on each of the four groups of fixing bolts 151, each insulating gasket 17 is positioned at the joint of the nut of the corresponding fixing bolt 151 and the outer wall of the corresponding first mounting block 13, a, the outer wall of the connection plate 12 is coated with an insulating coating 18 to prevent high voltage from being applied to the right-hand mounting block through the connection plate 12 during lightning strike.

The working principle is as follows:

when thunder or high voltage, thunder or high voltage can be introduced to lightning arrester 5, the inside spark gap of arrester can be punctured this moment, the resistance of six group valve piece resistance 7 can descend, the electric current can pass through inside the arrester from the top down, then be introduced the underground through lead wire 10, zinc oxide plate 8 between two sets of adjacent valve piece resistance 7 can accomplish not have the discharge gap simultaneously, and have good earial drainage and the effect of breaking, this has just protected video circuit not receive thunder or the injury of high voltage, when installing first shell 1 and second shell 2, align two sets of shells earlier, then use sealed glue 3 to seal in the junction, reuse clamp carries out outside fixed, can not receive external influence in having guaranteed inner chamber 6.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A video line lightning protection device comprises a first shell (1), a second shell (2) and a fixing mechanism (15), and is characterized in that: the sealing rubber (3) is arranged at the joint of the first shell (1) and the second shell (2), a clamp (4) is clamped outside the first shell (1) and the second shell (2), an inner cavity (6) is arranged inside the first shell (1) and the second shell (2), a lightning receiving plate (5) is arranged at the top of the first shell (1) and the top of the second shell (2), the bottom of the lightning receiving plate (5) penetrates into the inner cavity (6) and is communicated with at least six groups of valve sheet resistors (7), a zinc oxide plate (8) is arranged between two adjacent groups of valve sheet resistors (7), a valve core (9) is arranged at the bottom of each valve sheet resistor (7), the other end of the valve core (9) penetrates outside the inner cavity (6) and is communicated with a lead (10), the other end of the lead (10) penetrates underground, an insulating mounting plate (11) is fixed on the outer wall of the right side of the second shell (2) through a screw, insulating mounting panel (11) right side is provided with connecting plate (12), connecting plate (12) right side has first installation piece (13) through welded fastening, through four fixed establishment (15) fixedly connected with second installation piece (14) of group in first installation piece (13), second installation piece (14) right side has total support frame (16) through welded fastening.

2. A video line lightning protector according to claim 1 characterised in that: fixing mechanism (15) include fixing bolt (151) and fixation nut (152), the nut of fixing bolt (151) is located first installation piece (13) outer wall, and the fixing bolt (151) other end runs through in first installation piece (13) and second installation piece (14) in proper order, fixation nut (152) threaded connection is on fixing bolt (151), and fixation nut (152) are supported and are stopped on the inner wall of second installation piece (14).

3. A lightning protection device for a video line according to claim 2, characterized in that: a group of insulating gaskets (17) is sleeved on the four groups of fixing bolts (151) respectively, and the insulating gaskets (17) are located at the joint of the nuts of the fixing bolts (151) and the outer wall of the first mounting block (13).

4. A video line lightning protector according to claim 1 characterised in that: and an insulating coating (18) is coated on the outer wall of the connecting plate (12).

5. A video line lightning protector according to claim 1 characterised in that: and a sealing ring (19) is arranged at the joint of the lightning receiving plate (5) and the inner wall of the inner cavity (6).

6. A video line lightning protector according to claim 1 characterised in that: and a group of heat dissipation holes (20) are respectively formed in the outer walls of the front ends of the first shell (1) and the second shell (2).