CN2694575Y

CN2694575Y - A lightning arrester

Info

Publication number: CN2694575Y
Application number: CN 200420005925
Authority: CN
Inventors: 李连军
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-11
Filing date: 2004-03-11
Publication date: 2005-04-20
Anticipated expiration: 2014-03-11

Abstract

The utility model relates to a lightning arrester, compising a lightning rod, a metal conductor, an insulator and a grounding wire. The metal conductor is fixed on the cylindrical insulator, and the metal conductor is connected with a binding post through a first connecting piece; the position of the wiring point on the binding post is higher than the surface of the metal conductor; the bottom of the insulator is provided with a second connecting piece which is mutually connected with the metal conductor, and the antenna is truncated from the proper position; an antenna and the lightning arrester are mutually connected by the upper and the lower connecting pieces. The lightning arrester not only can effectively protect lightning and protect the communication device, but also designs the upper and the lower two connecting pieces to make the lightning arrester used for various lightning arresters with different structures.

Description

A kind of lightning arrester

Technical field

The utility model relates to a kind of lightning arrester, specifically is meant to be used for the lightning arrester that mansion top communication apparatus uses.

Background technology

Lightning that thundercloud produces over the ground and thunderbolt are to form a very high potential difference owing to have the relative ground of thundercloud of a large amount of static nuclears, thereby produce strong discharge effect.Because thunder and lightning has moment property high voltage, big characteristics of current, behind powerful lightning strike, to produce electrostatic field, electromagnetic field, electromagnetic radiation, and lightning wave intrusion, earth potential counterattack etc., the general designation Lightning Electromagnetic Pulse, the serious operate as normal of disturbing radio communication and various electronic equipments causes many microelectronic devices to damage within the specific limits.

At present for fear of interference and the destruction of Lightning Electromagnetic Pulse to electronic equipment and object, often the way that adopts be on facilities such as building, communication, airport extensive use lightning rod.All be erected at as the transmitter of Personal Handyphone System on the roof of outdoor skyscraper, therefore, rainy day equipment is struck by lightning easily and is damaged.For preventing the damage equipment that is struck by lightning, just lightning arrester need be installed on transmitter.The lightning arrester of Shi Yonging was fairly simple in the past, and it has a very thin insulator, is fixed with sheet metal on the insulator, and lightning rod connects earth lead by sheet metal.Mainly there are two problems in this device, and the one, insulator is very thin, does not possess waterproof ability, and rainwater is easily with the sheet metal conducting on equipment and the insulator, or creepage phenomenon occurs, makes lightning arrester ineffective; The 2nd, the junction of earth lead and sheet metal can form the ponding of stube cable, makes the poly-liter of high terminal voltage, produces blast, causes lightning protection system malfunctioning, and the phenomenon that thunder and lightning smashes equipment often takes place thus.

The utility model content

The purpose of this utility model is exactly to provide a kind of new lightning arrester for the problem that solves existing lightning arrester existence, and this lightning arrester can be used on the lightning rod of various different structures.

The purpose of this utility model can reach by the following technical programs:

A kind of lightning arrester, it comprises lightning rod, metallic conductor, insulator, earth connection, it is characterized in that being fixed with on the cylindrical insulator metallic conductor, metallic conductor connects a binding post by first connector, the position of wiring point is higher than the metallic conductor surface on the described binding post, the insulator bottom is provided with second connector that links to each other with metallic conductor, and its connecting portion is provided with insulation cushion.

Described metallic conductor and binding post and connector are one, and connector is hollow steel pipe, and the inwall of pipe is provided with the spiral shell button.

The circumference of described cylindrical insulator is provided with a flange, and the insulator end face is provided with a round platform, and described round platform and metallic conductor are fixed.

The connector that described insulator bottom links to each other with binding post is a steel disc, and steel disc is provided with and metallic conductor, circular hole that insulator is corresponding, and a steel disc and a hollow steel pipe are connected as one, and the outer wall of steel pipe is provided with screw thread.

Adopt the lightning arrester of the technical solution of the utility model to have following two characteristics, the one, insulator has certain height and has increased the flange that protrudes periphery, and this rainwater that can avoid splashing forms conduction between the metallic conductor of equipment and lightning arrester; Binding post on the metallic conductor is upturned in addition; make earth connection be connected on the surface that contact on the binding post is higher than metallic conductor; avoid ponding at the contact place of binding post; preventing that ponding from directly infiltrating draws down cable and causes the steam in the cable to gather; having eliminated because of steam in the cable gathers reduces cable insulation intensity and to the corrosion of cable copper core; make lightning current can protect electric equipment well very rapidly down by cable.

Another advantage of the present utility model has been to use the connector that upper and lower two parts link to each other with binding post, so just this lightning arrester can be used on various lightning rod, so the wide more model of range of application.

Description of drawings

Fig. 1 is a general structure schematic diagram of the present utility model;

Fig. 2 is the assembled state schematic cross-section of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in detail:

As shown in Figures 1 and 2, lightning arrester of the present utility model extensively model is applied on each mansion top and the communication apparatus, this lightning arrester by insulator 1, metallic conductor 2, lightning rod 4, metallic conductor bottom by connector 3, screw rod 6, nut 7, insulation cushion 8, insulator up and down two centre spots 9 and 10 and earth connection 11 form.Insulator 1 is a cavity cylinder, the end face of insulator has a diameter less than cylindrical round platform 102, round platform 102 centre bits are equipped with a centre spot 104, the surface of round platform also is provided with the inner chamber of four through circular hole 103 straight-through insulators, flange 101 of the circumferential lower convexity on insulator 1 top, approximate isometrical metallic conductor 2 is installed on the round platform 102 of insulator 1 end face, the surface of metallic conductor 2 is provided with the aperture 203 corresponding with the aperture 103 of insulator surface, there is a binding post that is upturned 201 at the edge of metallic conductor 2, and earth connection 11 connects by binding post top aperture 202.The surface of metallic conductor 2 is provided with the connector 204 that links to each other with lightning rod 4, and connector 204 is a hollow steel pipe, and hollow steel pipe 204 is configured as one with metallic conductor 2, and the inner chamber of steel pipe 204 is provided with spiral shell and buckles 205.Be provided with second connector 3 in the inner chamber of insulator bottom, second connector 3 is a steel disc, and the surface of steel disc is provided with the aperture 303 corresponding with insulator 1, metallic conductor 2, and the centre bit of steel disc is equipped with a hollow steel pipe, steel pipe and steel disc are configured as one, and the downside outer wall of steel pipe is provided with screw thread.

During use, earlier with existing lightning rod 4 from suitable parallel the blocking in position, the lower part of the first half lightning rod 4 outer wall be arranged with metallic conductor 2 on the corresponding screw thread 401 of spiral shell button of connector 204 inwalls, the spiral shell button 5 that screw thread 302 on the madial wall with the top of the latter half lightning rod on sheathed and second connector 3 is corresponding, again metallic conductor 2 is sheathed on the centre spot 104 on the top round platform of insulator 1, make aperture 203 on the metallic conductor 2 correspond to the aperture 103 on round platform 102 surfaces, in the middle of the aperture 103 on aperture on the metallic conductor 2 203 and the round platform, increase insulation cushion 8 is arranged, again second connector 3 is sheathed on the centre spot 10 of insulator inner chamber, make the aperture 103 on second connector, 3 lip-deep aperture 303 corresponding metallic conductor surface apertures 203 and the round platform, between aperture 303 on second connector 3 and the aperture 103 on the insulator, increase insulation cushion 801, carry out firmly with preprepared four screw rods 6 and four nuts 7, so just lightning arrester has been installed.And then the first half of the lightning rod 4 that blocks and the connector 204 on the metallic conductor 2 made up, sheathed spiral shell is buckled 5 and is combined on the latter half with the screw thread 302 on the steel pipe 301 on second connector 3 and lightning rod, and the whole erection process just is through with like this.

As the body that existing lightning rod occurs also can adopt the method for welding to install, and packaging technology is very simple can not coincide with upper and lower two connectors of this lightning arrester the time.

Rain when thundering, lightning rod 4 is directly introduced thunder and lightning by earth connection 11 underground, avoids thunder and lightning to smash equipment.

The outstanding characteristics of this device are:

1, insulator has certain height and has increased the flange that protrudes periphery, this The rainwater that sample can be avoided splashing forms conduction between the metallic conductor of equipment and lightning arrester;

2, the binding post on the metallic conductor is upturned, and makes earth connection be connected on connecing on the binding post Point is higher than the surface of metallic conductor, avoids the ponding at the contact place of binding post, prevents that ponding is direct Infiltration is drawn lower cable and is caused the steam in the cable to gather, and has eliminated because steam in the cable gathers making Cable insulation strength decreased and to the corrosion of cable copper core can very rapidly pass through lightning current Under the cable, can protect well transmitter;

3, increase felt pad between the upper and lower connector, can better play the work of insulation With;

4, adopted upper and lower two connectors, made this lightning arrester can be suitable for various differences Lightning rod, and install very convenient, fast, the more wide model of the scope of application.

Claims

1, a kind of lightning arrester, it comprises lightning rod, metallic conductor, insulator, earth connection, it is characterized in that being fixed with on the cylindrical insulator metallic conductor, metallic conductor connects a binding post by first connector, the position of wiring point is higher than the metallic conductor surface on the described binding post, the insulator bottom is provided with second connector that links to each other with metallic conductor, and its connecting portion is provided with insulation cushion.

2, a kind of lightning arrester according to claim 1 is characterized in that described metallic conductor and binding post and connector are one, and connector is hollow steel pipe, and the inwall of pipe is provided with the spiral shell button.

3, according to the said lightning arrester of claim 1, it is characterized in that the circumference of described cylindrical insulator is provided with a flange, the insulator end face is provided with a round platform, and described round platform and metallic conductor are fixed.

4, a kind of lightning arrester according to claim 1, it is characterized in that the connector that described insulator bottom links to each other with binding post is a steel disc, steel disc is provided with and metallic conductor, circular hole that insulator is corresponding, and a steel disc and a hollow steel pipe are connected as one, and the outer wall of steel pipe is provided with screw thread.