CN219642614U

CN219642614U - Composite gap lightning arrester

Info

Publication number: CN219642614U
Application number: CN202223469947.6U
Authority: CN
Inventors: 徐语濛; 张锐
Original assignee: Liaoning Tongda Electric Power Technology Co ltd
Current assignee: Liaoning Tongda Electric Power Technology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-09-05
Anticipated expiration: 2032-12-26

Abstract

The utility model belongs to the technical field of lightning arresters, in particular to a composite gap lightning arrester, which aims at solving the problems that the existing lightning arrester body cannot share the high current of overvoltage, and a discharging rod is unstable to fix and easy to loosen after long-time use.

Description

Composite gap lightning arrester

Technical Field

The utility model relates to the technical field of lightning arresters, in particular to a composite gap lightning arrester.

Background

The arrester is an effective protection electrical appliance for protecting an electric power system from overvoltage, the traditionally used arrester is a gapless arrester, the piezoresistor sheet of the arrester is always between the system and the protection ground, the arrester has power frequency freewheels, the overvoltage of the system and the state of the arrester after the overvoltage are recovered, the arrester is realized by the nonlinear volt-ampere characteristic of the piezoresistor sheet, and the gap arrester is mostly a series gap arrester, namely, a discharge gap and the piezoresistor sheet are used in series.

In the prior art, the high current of overvoltage can not be shared for the arrester body, and the discharging rod is unstable in fixation and easy to loosen after long-time use, so that a composite gap arrester is provided for solving the problems.

Disclosure of Invention

The utility model aims to solve the defects that the overvoltage can not be shared by a large current of overvoltage for a lightning arrester body, a discharging rod is unstable to fix and is easy to loosen after long-time use, and provides a composite gap lightning arrester.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a compound clearance arrester, includes the arrester body, the inner wall fixedly connected with upper electrode of arrester body, the round hole has all been seted up to the outer wall of arrester body and upper electrode, the inner wall sliding connection of round hole has the upper discharge rod, the outer wall slip cap of upper discharge rod is equipped with the swivel nut, the outer wall fixed cover of upper discharge rod is equipped with solid fixed ring, the inner wall and the outer wall sliding connection of solid fixed ring of swivel nut, the outer wall and the outer wall threaded connection of arrester body of swivel nut, the inside fixedly connected with intermediate electrode of arrester body, the slide opening has all been seted up to the outer wall of intermediate electrode and arrester body, the inner wall fixedly connected with gum cover of slide opening, the inner wall sliding connection of gum cover has well discharge rod, the outer wall fixedly connected with conducting tube of well discharge rod, the inside fixedly connected with first semicircle piece of conducting tube, the outer wall of arrester body is equipped with fixed establishment.

Preferably, the fixed establishment includes the insulator spindle, the slot hole has all been seted up to the outer wall of arrester body and middle electrode, the inner wall and the outer wall threaded connection of insulator spindle of slot hole, the one end fixedly connected with second semicircle piece of insulator spindle, contact between second semicircle piece and the first semicircle piece, the inside fixedly connected with bottom electrode of arrester body, the mounting hole has all been seted up to the outer wall of bottom electrode and arrester body, and the inner wall sliding connection of mounting hole has the lower discharging rod, the outer wall slip cap of discharging rod is equipped with the lantern ring, the outer wall fixed sleeve of discharging rod is equipped with the spacing ring, the inner wall of lantern ring and the outer wall threaded connection of arrester body carry out the position fixing to the electrically conductive pipe through setting up insulator spindle and first semicircle piece.

Preferably, two screw holes are formed in the outer wall of the lightning arrester body, the inner walls of the two screw holes are connected with conductive screws in a threaded mode, and the lightning arrester body and the ground wire are installed through the conductive screws.

Preferably, the outer wall thread sleeve of the conductive screw is provided with a screw cap, the outer wall sleeve of the conductive screw is provided with a gasket and an end cover, and the outer wall of the lightning arrester body is protected by the end cover.

Preferably, the lightning arrester body is uniformly and fixedly connected with a plurality of resistor discs.

Preferably, the outer wall of the lightning arrester body is fixedly sleeved with a silicone rubber umbrella sleeve.

Preferably, through holes are formed in the outer walls of the upper electrode and the lower electrode, and one ends of the two conductive screws are located in the two through holes respectively.

Compared with the prior art, the utility model has the advantages that:

this scheme carries out fixed in position to last discharging rod, lower discharging rod and well discharging rod through setting up conductive screw rod, swivel nut, lantern ring, first semicircle piece, second semicircle piece and insulator spindle, prevents to become flexible after long-time use, when serious atmospheric overvoltage takes place for the system, when the overvoltage reaches parallel gap discharge standard, the overvoltage releases through the effect of last discharging rod, well discharging rod and lower discharging rod to form high-voltage arc, overvoltage energy will be released to the earth from resistance card and series gap this moment.

Drawings

Fig. 1 is a schematic perspective view of a composite gap lightning arrester according to the present utility model;

fig. 2 is a schematic cross-sectional view of a composite gap lightning arrester according to the present utility model;

fig. 3 is a schematic front view of a composite gap lightning arrester according to the present utility model;

fig. 4 is a schematic structural diagram of a conductive tube, a first semicircular block, a second semicircular block and an insulating rod of the composite gap lightning arrester according to the present utility model.

In the figure: 1. a lightning arrester body; 2. a conductive screw; 3. a gasket; 4. an end cap; 5. an upper electrode; 6. a discharging rod is arranged on the upper part; 7. a screw sleeve; 8. a resistor sheet; 9. a silicone rubber umbrella cover; 10. an intermediate electrode; 11. a collar; 12. a medium discharging rod; 13. a conductive tube; 14. a first semicircle block; 15. a second semicircle block; 16. an insulating rod; 17. a lower electrode; 18. and (5) lowering the discharging rod.

Detailed Description

The utility model provides a shown by fig. 1-4, relate to a compound clearance arrester, including arrester body 1, the inner wall fixedly connected with upper electrode 5 of arrester body 1, the round hole has all been seted up with the outer wall of upper electrode 5 to arrester body 1, the inner wall sliding connection of round hole has upper discharge rod 6, two screw holes have been seted up to the outer wall of arrester body 1, the inner wall of two screw holes has conductive screw 2, the outer wall slip cap of upper discharge rod 6 is equipped with swivel nut 7, rotate swivel nut 7 and lantern ring 11, carry out fixed position to upper discharge rod 6 and lower discharge rod 18, the outer wall fixed cover of upper discharge rod 6 is equipped with solid fixed ring, the inner wall of swivel nut 7 and solid fixed ring's outer wall sliding connection, the outer wall of swivel nut 7 and the outer wall threaded connection of arrester body 1, the inside fixedly connected with intermediate electrode 10 of arrester body 1, the outer wall threaded cover of conductive screw 2 is equipped with the nut, the outer wall cover of conductive screw 2 is equipped with gasket 3 and end cover 4, the outer wall of end cover 4 protects the outer wall of arrester body 1, prevent the outer wall of excessive extrusion arrester body 1, intermediate electrode 10 and arrester body 1 are equipped with the fixed ring 13, the fixed connection of inner wall 12 of arrester body 1 has the fixed connection of insulator 12, the inner wall 13 from the fixed connection of insulator 13, the fixed connection has the insulator 13, the insulator 13 has the fixed connection of insulator 13, the inner wall 13 has, the fixed connection of insulator 13, the insulator 13 has, the fixed connection of insulator 13, the inner conductor 12 has, 13, the insulator 13, and 13.

As shown in fig. 2 and 4, the fixing mechanism comprises an insulating rod 16, long holes are formed in the outer walls of the lightning arrester body 1 and the intermediate electrode 10, the inner walls of the long holes are in threaded connection with the outer walls of the insulating rod 16, one end of the insulating rod 16 is fixedly connected with a second semicircular block 15, the insulating rod 16 enables the second semicircular block 15 to rotate for half a circle, the first semicircular block 14 is limited, the second semicircular block 15 contacts the first semicircular block 14, a lower electrode 17 is fixedly connected to the inside of the lightning arrester body 1, mounting holes are formed in the outer walls of the lower electrode 17 and the lightning arrester body 1, lower discharging rods 18 are slidably connected to the inner walls of the mounting holes, through holes are formed in the outer walls of the upper electrode 5 and the lower electrode 17, one ends of the two conductive screws 2 are located in the two through holes respectively, a lantern ring 11 is sleeved on the outer wall of the lower discharging rods 18 in a sliding mode, a limiting ring is sleeved on the outer wall of the lower discharging rods 18 in a fixed mode, and the inner wall of the lantern ring 11 is in threaded connection with the outer wall of the lightning arrester body 1.

Working principle: the upper discharging rod 6 and the lower discharging rod 18 are respectively inserted into the upper electrode 5 and the lower electrode 17, the threaded sleeve 7 and the lantern ring 11 are rotated, the upper discharging rod 6 and the lower discharging rod 18 are fixed in position, looseness is prevented, the lightning arrester body 1 is fixedly installed through the conductive screw rod 2 and the gasket 3, and a grounding wire is installed through the bottom conductive screw rod 2, meanwhile, the outer wall of the lightning arrester body 1 is protected by the end cover 4, the nuts are prevented from excessively extruding the outer wall of the lightning arrester body 1, one ends of the two conductive screw rods 2 are respectively contacted with the outer wall of the upper discharging rod 6 and the outer wall of the lower discharging rod 18, the middle discharging rod 12 is inserted into the middle electrode 10, the position of the middle discharging rod 12 is fixed in the aid of the rubber sleeve, meanwhile, the insulating rod 16 is rotated to enable the second semicircular block 15 to rotate for a half circle, the first semicircular block 14 is limited, the middle discharging rod 12 is limited, the lightning arrester body 1 is directly released through the lightning arrester body 1 when in operation, when serious atmospheric overvoltage occurs in a system, the overvoltage is parallel to a gap, the overvoltage reaches the standard, the high voltage is released from the middle discharging rod 12 through the middle discharging rod 6 and the middle discharging rod 18, the overvoltage is continuously connected in series with the arc discharge resistor 8, and the arc discharge is reduced from the high voltage to the arc discharge resistor 8, and the arc discharge is continuously caused by the high voltage to the discharge voltage to the arc discharging rod 8.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art will be able to apply equally to the technical solution of the present utility model and the inventive concept thereof, within the scope of the present utility model.

Claims

1. The utility model provides a compound clearance arrester, includes arrester body (1), its characterized in that, the inner wall fixedly connected with upper electrode (5) of arrester body (1), round hole has all been seted up to the outer wall of arrester body (1) and upper electrode (5), the inner wall sliding connection of round hole has upper discharge rod (6), the outer wall slip cap of upper discharge rod (6) is equipped with swivel nut (7), the outer wall fixed cover of upper discharge rod (6) is equipped with the solid fixed ring, the inner wall and the outer wall sliding connection of solid fixed ring of swivel nut (7), the outer wall of swivel nut (7) and the outer wall threaded connection of arrester body (1), the inside fixedly connected with intermediate electrode (10) of arrester body (1), the slide hole has all been seted up with the outer wall of arrester body (1) intermediate electrode (10), the inner wall fixedly connected with gum cover of slide hole, the inner wall sliding connection of gum cover has middle discharge rod (12), the outer wall fixedly connected with electrically conductive pipe (13) of middle discharge rod (12), inside electrically conductive pipe (13) and the outer wall threaded connection of arrester body (1) and intermediate electrode (16), intermediate electrode (16) and insulator (16) are equipped with each other, one end fixedly connected with second semicircle piece (15) of insulator spindle (16), contact between second semicircle piece (15) and the first semicircle piece (14), the inside fixedly connected with bottom electrode (17) of arrester body (1), the mounting hole has all been seted up to the outer wall of bottom electrode (17) and arrester body (1), and the inner wall sliding connection of mounting hole has down discharging rod (18), the outer wall slip cap of discharging rod (18) is equipped with lantern ring (11), the outer wall fixed sleeve of discharging rod (18) is equipped with the spacing ring down, the inner wall of lantern ring (11) and the outer wall threaded connection of arrester body (1).

2. The composite gap lightning arrester according to claim 1, wherein two threaded holes are formed in the outer wall of the lightning arrester body (1), and conductive screws (2) are connected to the inner walls of the two threaded holes in a threaded manner.

3. The composite gap lightning arrester according to claim 2, wherein a nut is sleeved on the outer wall of the conductive screw (2), and a gasket (3) and an end cover (4) are sleeved on the outer wall of the conductive screw (2).

4. A composite gap arrester according to claim 1, characterized in that the interior of the arrester body (1) is fixedly connected with a plurality of resistive patches (8) uniformly.

5. The composite gap lightning arrester according to claim 1, wherein the outer wall of the lightning arrester body (1) is fixedly sleeved with a silicone rubber umbrella cover (9).

6. The composite gap lightning arrester according to claim 2, wherein the outer walls of the upper electrode (5) and the lower electrode (17) are respectively provided with through holes, and one ends of the two conductive screws (2) are respectively positioned in the two through holes.