CN110828081B - Indoor use automatic tripping arrester - Google Patents

Abstract

The invention discloses an indoor automatic tripping arrester, comprising an awning body, an insulating tube, a zinc oxide lightning arrester core body and a bell mouth body, wherein the insulating tube is located inside the awning body, the bell mouth body is located at the bottom of the awning body, an upper awning sealing piece is provided at the upper end of the awning body, a magnet adsorption surface is provided on the lower surface of the upper awning sealing piece, a first installation internal thread is provided at the lower end of the upper awning sealing piece, a first installation external thread matching the first installation internal thread is provided on the insulating tube, the upper awning sealing piece is fixedly connected to the awning body through the insulating tube, and a lightning arrester core installation inner cavity is provided inside the insulating tube. The invention provides a lightning arrester core anti-falling mechanism, and an anti-falling boss is provided on the lightning arrester core anti-falling mechanism. When the zinc oxide lightning arrester core body falls off, the anti-falling movable part can clamp the zinc oxide lightning arrester core body in the anti-falling position, so as to prevent the zinc oxide lightning arrester core body from falling directly to other places and causing safety accidents.

Description

An indoor automatic tripping arrester

Technical Field

The invention relates to the technical field related to strong electricity, in particular to an indoor automatic tripping arrester.

Background Art

Lightning arrester is an electrical appliance used to protect electrical equipment from high transient overvoltage hazards during lightning strikes, and to limit the follow-on time, and often also limit the follow-on value. Lightning arrester is sometimes also called overvoltage protector, overvoltage limiter, suitable for overvoltage protection of transformers, transmission lines, distribution panels, switch cabinets, power meter boxes, vacuum switches, parallel compensation capacitors, rotating motors and semiconductor devices; lightning arresters are divided into many types, including metal oxide lightning arresters, line-type metal oxide lightning arresters, gapless line-type metal oxide lightning arresters, fully insulated composite jacket metal oxide lightning arresters, and removable lightning arresters. Among them, indoor automatic tripping lightning arresters are a type of lightning arrester.

However, the existing indoor lightning arresters are not equipped with releases. During use, if the lightning arrester is not disconnected and replaced in time after aging, a safety accident of the lightning arrester body heating or even explosion will occur, damaging other components in the cabinet. Therefore, the use status and aging degree of the lightning arrester currently need to rely on the installation of additional monitoring instruments, which not only increases the potential failure points in the equipment, but also invisibly increases the cost of using the equipment. The commonly used lightning arrester releasers on the market are thermal explosion type, which rely on gunpowder explosion to achieve the disengagement action of the lightning arrester. Therefore, this tripping method can only be used outdoors and cannot be used indoors, and needs to be improved.

Summary of the invention

The object of the present invention is to provide an automatic tripping lightning arrester for indoor use, so as to solve the problem that the existing indoor lightning arrester mentioned in the above background technology is not provided with a tripper. When in use, if the lightning arrester is not disconnected and replaced in time after aging, a safety accident of heating or even explosion of the lightning arrester body may occur, damaging other components in the cabinet. Therefore, the use status and aging degree of the lightning arrester currently need to rely on the installation of an additional monitoring instrument, which not only increases the potential failure points in the equipment, but also invisibly increases the use cost of the equipment.

To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an indoor automatic tripping lightning arrester, comprising an shed main body, an insulating tube, a zinc oxide lightning arrester core main body and a bell mouth main body, wherein the insulating tube is located inside the shed main body, the bell mouth main body is located at the bottom end of the shed main body, an upper shed sealing piece is provided at the upper end of the shed main body, a magnet adsorption surface is provided on the lower surface of the upper shed sealing piece, a first installation internal thread is provided at the lower end of the upper shed sealing piece, a first installation external thread matching the first installation internal thread is provided on the insulating tube, and the The upper shed sealing piece is fixedly connected to the shed main body through an insulating tube, a lightning core installation inner cavity is arranged inside the insulating tube, the zinc oxide lightning core main body is installed in the lightning core installation inner cavity, a demagnetization module is connected to the upper end of the zinc oxide lightning core main body, and a lightning core anti-fall mechanism is connected to the bottom end of the zinc oxide lightning core main body, an anti-fall boss is arranged on the anti-fall mechanism, an anti-fall mounting frame is connected to one side of the shed main body, an anti-fall movable part is connected to one side of the bottom end of the anti-fall mounting frame, and the anti-fall movable part is located on one side of the bottom end of the lightning core anti-fall mechanism.

Preferably, the anti-falling mounting frame includes a fixed bracket and an anti-falling fixing piece, one end of the fixed bracket is connected to a fixing ring, the fixing ring is fixedly sleeved at the connection between the umbrella skirt body and the bell mouth body, the anti-falling fixing piece is fixedly connected to the fixed bracket, the anti-falling fixing piece is provided with a torsion spring, and the torsion spring is connected to the anti-falling fixing piece through a first mounting bolt.

Preferably, the anti-falling movable part is located at one side of the bottom end of the anti-falling fixing part, and the anti-falling movable part is connected to the anti-falling fixing part through an anti-falling torsion spring and a second mounting bolt.

Preferably, a second internal installation thread is provided at the upper end of the bell mouth body, a second external installation thread matching the second internal installation thread is provided on the side wall of the bottom end of the insulating tube, and a conductive connecting surface is provided at the end of the bell mouth body with a larger diameter.

Preferably, the bell mouth body is made of non-ferrous metal material, the conductive connection surface is set to a 30° wide-mouth, and the conductive connection surface is in contact with the lightning protection core anti-fall mechanism through the anti-fall boss.

Preferably, the top end of the upper umbrella skirt sealing piece is connected to an upper end connecting piece, the upper end of the upper end connecting piece is provided with an inlet terminal, and the side wall of the upper end connecting piece is provided with a connecting stud, and the upper end of the upper umbrella skirt sealing piece is provided with a mounting hole matching the connecting stud, and the upper umbrella skirt sealing piece is connected to the upper end connecting piece through the connecting stud.

Preferably, the upper umbrella skirt sealing member is made of iron material, and the magnet adsorption surface is a flat circular surface.

The present invention provides an indoor automatic tripping arrester, which has the following beneficial effects:

The present invention provides a lightning protection core anti-falling mechanism at the bottom end of the zinc oxide lightning protection core main body, and provides an anti-falling boss on the lightning protection core anti-falling mechanism. When in use, the anti-falling boss contacts the conductive connecting surface on the bell mouth main body to produce a conductive effect. When the zinc oxide lightning protection core main body falls off, the upper end of the anti-falling movable part contacts and supports the anti-falling boss, and the zinc oxide lightning protection core main body is clamped in the anti-falling position, so as to avoid the zinc oxide lightning protection core main body directly falling to other places to cause safety accidents. The invention has high safety and is easy to use.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a schematic diagram of the main structure of the umbrella skirt of the present invention;

FIG3 is a schematic diagram of the main structure of the zinc oxide lightning protection core of the present invention;

FIG. 4 is a schematic diagram of the arrester shedding structure of the present invention.

In the figure: 1. upper end connecting piece; 1-1. connecting bolt; 1-2. incoming line end; 2. upper shed sealing piece; 2-1. magnet adsorption surface; 2-2. first mounting internal thread; 3. shed main body; 4. insulating tube; 4-1. first mounting external thread; 4-2. lightning protection core mounting inner cavity; 4-3. second mounting external thread; 5. fixing bracket; 5-1. fixing collar; 6. anti-fall fixing piece; 6-1. first mounting bolt; 7. bell mouth main body; 7-1. second mounting internal thread; 7-2. conductive connecting surface; 8. anti-fall movable piece; 8-1. second mounting bolt; 9. demagnetization module; 10. zinc oxide lightning protection core main body; 11. lightning protection core anti-fall mechanism; 11-1. anti-fall boss.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

Embodiment 1:

As shown in Figures 1-3, the present invention provides a technical solution: an indoor automatic tripping lightning arrester, comprising an shed body 3, an insulating tube 4, a zinc oxide lightning protection core body 10 and a bell mouth body 7, wherein the insulating tube 4 is located inside the shed body 3, the bell mouth body 7 is located at the bottom end of the shed body 3, an upper shed sealing member 2 is provided at the upper end of the shed body 3, a magnet adsorption surface 2-1 is provided on the lower surface of the upper shed sealing member 2, a first installation internal thread 2-2 is provided at the lower end of the upper shed sealing member 2, a first installation external thread 4-1 matching the first installation internal thread 2-2 is provided on the insulating tube 4, and the upper The shed sealing member 2 is fixedly connected to the shed main body 3 through an insulating tube 4, a lightning core installation cavity 4-2 is provided inside the insulating tube 4, the zinc oxide lightning core main body 10 is installed in the lightning core installation cavity 4-2, the upper end of the zinc oxide lightning core main body 10 is connected to a demagnetization module 9, and the bottom end of the zinc oxide lightning core main body 10 is connected to a lightning core anti-fall mechanism 11, the anti-fall mechanism 11 is provided with an anti-fall boss 11-1, one side of the shed main body 3 is connected to an anti-fall mounting frame, one side of the bottom end of the anti-fall mounting frame is connected to an anti-fall movable part 8, and the anti-fall movable part 8 is located on one side of the bottom end of the lightning core anti-fall mechanism 11.

The anti-falling mounting frame includes a fixed bracket 5 and an anti-falling fixing piece 6, one end of the fixed bracket 5 is connected to a fixed ring 5-1, the fixed ring 5-1 is fixedly sleeved at the connection between the umbrella skirt body 3 and the bell mouth body 7, the anti-falling fixing piece 6 is fixedly connected to the fixed bracket 5, and the anti-falling fixing piece 6 is provided with a torsion spring, and the torsion spring is connected to the anti-falling fixing piece 6 through a first mounting bolt 6-1. By closely fitting the fixed bracket 5 with the bell mouth 7 through the fixed ring 5-1, it can be ensured that overvoltage or lightning can be safely introduced into the underground. At the same time, the fixed ring 5-1 can effectively connect the insulating tube 4 to it, and the grounding wire of the outlet end can be connected to the anti-falling fixing piece 6 through the first mounting bolt 6-1.

The anti-falling movable part 8 is located at one side of the bottom end of the anti-falling fixing part 6, and the anti-falling movable part 8 is connected to the anti-falling fixing part 6 through an anti-falling torsion spring and a second mounting bolt 8-1. When the operator manually installs the anti-falling movable part 8, the installer is used to shrink the anti-falling movable part 8 inward so that the zinc oxide lightning core main body 10 can be smoothly installed and restored to its original state, so that when the zinc oxide lightning core main body 10 ages and falls, the anti-falling movable part 8 can be used to clamp the lightning core in the anti-falling position to prevent the zinc oxide lightning core main body 10 from falling directly to other places and causing safety accidents.

The upper end of the bell-mouth body 7 is provided with a second mounting internal thread 7-1, and the side wall of the bottom end of the insulating tube 4 is provided with a second mounting external thread 4-3 matching the second mounting internal thread 7-1. The end with a larger diameter of the bell-mouth body 7 is provided with a conductive connecting surface 7-2. The second mounting internal thread 7-1 can tightly combine the bell-mouth body 7 and the insulating tube 4, and the conductive connecting surface 7-2 can fully contact the conductive parts at the lower end of the zinc oxide lightning protection core body 10 to ensure effective conduction between the two.

The bell-mouth body 7 is made of non-ferrous metal material, the conductive connecting surface 7-2 is set to a 30° wide mouth, and the conductive connecting surface 7-2 is in contact with the lightning core anti-fall mechanism 11 through the anti-fall boss 11-1. By using the bell-mouth body 7 of non-ferrous metal material, the upper end magnet of the lightning core can be prevented from being accidentally attracted during the installation of the lightning core. By designing the conductive connecting surface 7-2 to a 30° wide mouth, the zinc oxide lightning core body 10 can be easier to install.

The top end of the upper umbrella skirt sealing member 2 is connected to the upper end connecting member 1, the upper end of the upper end connecting member 1 is provided with an inlet terminal 1-2, and the side wall of the upper end connecting member 1 is provided with a connecting stud 1-1, and the upper end of the upper umbrella skirt sealing member 2 is provided with a mounting hole matching the connecting stud 1-1, and the upper umbrella skirt sealing member 2 is connected to the upper end connecting member 1 through the connecting stud 1-1. By connecting the umbrella skirt main body 3 with the upper end connecting member 1 through the upper umbrella skirt sealing member 2, the umbrella skirt main body 3 can be rotated 90° and play a certain connecting role.

The upper umbrella skirt sealing member 2 is made of iron material, and the magnet adsorption surface 2-1 is a flat circular surface. By making the magnet adsorption surface 2-1 a flat circular surface, an effective adsorption surface is provided for the magnet, so that the two are in full contact and conduct electricity.

It should be noted that, in an indoor automatic tripping lightning arrester, when working, the umbrella skirt main body 3 is connected to the upper end connecting piece 1 through the upper umbrella skirt sealing piece 2, so that the umbrella skirt main body 3 can be rotated 90° and play a certain connecting role, so that the umbrella skirt main body 3 can be connected to the upper end line through the incoming line terminal 1-2 at the upper end of the connecting piece 1, and the second mounting internal thread 7-1 can tightly combine the bell mouth main body 7 with the insulating tube 4. At this time, the zinc oxide lightning core main body 10 is installed inside the insulating tube 4, and the anti-fall boss 11-1 on the lightning core anti-fall mechanism 11 is in full contact with the conductive connecting surface 7-2, thereby ensuring effective conductivity between the two, and because the fixed bracket 5 is tightly fitted with the bell mouth 7 through the fixed ring 5-1, and the anti-fall fixing piece 6 is fixedly connected to the fixed bracket 5, the lower end grounding line is connected to the anti-fall fixing piece 6 through the first mounting bolt 6-1, which can ensure that overvoltage or lightning can be safely introduced into the underground.

Embodiment 2:

As shown in FIG. 1 , FIG. 2 and FIG. 4 , an indoor automatic tripping arrester is basically the same as Example 1, and further, the bottom end of the anti-falling boss 11 - 1 contacts the top end of the anti-falling movable member 8 .

It should be noted that, in an indoor automatic tripping lightning arrester, when working, when the zinc oxide lightning core body 10 ages and falls off, the lightning core anti-fall mechanism 11 falls synchronously, and the anti-fall boss 11-1 also falls therewith, and the bottom end of the anti-fall boss 11-1 contacts the top of the anti-fall movable part 8, so that the anti-fall movable part 8 can be used to support the anti-fall boss 11-1, and the zinc oxide lightning core body 10 can be stuck in the anti-fall position, so as to prevent the zinc oxide lightning core body 10 from falling directly to other places and causing safety accidents. The device has high safety and is easy to use.

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

Claims (5)

1. An indoor automatic tripping lightning arrester, characterized in that it comprises an shed body (3), an insulating tube (4), a zinc oxide lightning arrester core body (10) and a bell mouth body (7), wherein the insulating tube (4) is located inside the shed body (3), the bell mouth body (7) is located at the bottom end of the shed body (3), an upper shed sealing member (2) is provided at the upper end of the shed body (3), a magnet adsorption surface (2-1) is provided on the lower surface of the upper shed sealing member (2), a first mounting internal thread (2-2) is provided at the lower end of the upper shed sealing member (2), a first mounting external thread (4-1) matching the first mounting internal thread (2-2) is provided on the insulating tube (4), and the upper shed sealing member (2) being fixedly connected to the shed body (3) through an insulating tube (4), wherein a lightning core installation cavity (4-2) is provided inside the insulating tube (4), wherein the zinc oxide lightning core body (10) is installed in the lightning core installation cavity (4-2), wherein the upper end of the zinc oxide lightning core body (10) is connected to a demagnetization module (9), and the lower end of the zinc oxide lightning core body (10) is connected to a lightning core anti-fall mechanism (11), wherein an anti-fall boss (11-1) is provided on the anti-fall mechanism (11), wherein one side of the shed body (3) is connected to an anti-fall mounting frame, wherein one side of the lower end of the anti-fall mounting frame is connected to an anti-fall movable part (8), and wherein the anti-fall movable part (8) is located on one side of the lower end of the lightning core anti-fall mechanism (11); The anti-falling mounting frame comprises a fixing bracket (5) and an anti-falling fixing piece (6); one end of the fixing bracket (5) is connected to a fixing collar (5-1); the fixing collar (5-1) is fixedly sleeved at the connection between the umbrella skirt body (3) and the bell mouth body (7); the anti-falling fixing piece (6) is fixedly connected to the fixing bracket (5); a torsion spring is provided on the anti-falling fixing piece (6); and the torsion spring is connected to the anti-falling fixing piece (6) via a first mounting bolt (6-1); The anti-falling movable part (8) is located at one side of the bottom end of the anti-falling fixing part (6), and the anti-falling movable part (8) is connected to the anti-falling fixing part (6) via an anti-falling torsion spring and a second mounting bolt (8-1). 2. An indoor automatic tripping arrester according to claim 1, characterized in that the upper end of the bell-mouth body (7) is provided with a second mounting internal thread (7-1), the side wall of the bottom end of the insulating tube (4) is provided with a second mounting external thread (4-3) matching the second mounting internal thread (7-1), and the end of the bell-mouth body (7) with a larger diameter is provided with a conductive connecting surface (7-2). 3. An indoor automatic tripping lightning arrester according to claim 2, characterized in that the bell mouth body (7) is made of non-ferrous metal material, the conductive connection surface (7-2) is set at a 30° wide mouth, and the conductive connection surface (7-2) is in contact with the lightning protection core anti-fall mechanism (11) through the anti-fall boss (11-1). 4. An indoor automatic tripping arrester according to claim 1, characterized in that the top end of the upper shed sealing member (2) is connected to an upper end connecting member (1), the upper end of the upper end connecting member (1) is provided with an inlet terminal (1-2), and the side wall of the upper end connecting member (1) is provided with a connecting stud (1-1), the upper end of the upper shed sealing member (2) is provided with a mounting hole matching the connecting stud (1-1), and the upper shed sealing member (2) is connected to the upper end connecting member (1) through the connecting stud (1-1). 5. An indoor automatic tripping arrester according to claim 1, characterized in that the upper shed sealing member (2) is made of iron material, and the magnet adsorption surface (2-1) is a flat circular surface.