CN208718482U - Lightning protection hard composite insulation cross arm with safety guard and proof mechanism of water - Google Patents

Abstract

A kind of lightning protection hard composite insulation cross arm with safety guard and proof mechanism of water, including insulation mandrel, metal top, metal bottom end and umbrella cover, the metal top for fixing power line and the metal bottom end for being fixedly mounted with electric pole are separately connected at the both ends of insulation mandrel, surface recombination umbrella cover in the junction at insulation mandrel and its both ends and metal top and metal bottom end is equipped with wire clamp on metal top；Proof mechanism of water is respectively provided between metal top and the top and metal bottom end and the bottom end of umbrella cover of umbrella cover；Umbrella cover is made of hard insulation；Metal top therewith between be equipped with lightning protection mechanism；Wire clamp is mounted in a safety guard.The utility model has the advantages that: increased wire clamp can be fixedly secured power line；It is located at the proof mechanism of water at umbrella cover both ends Yu metal top and metal bottom end, improves insulating properties；The water-proof plate of hard material effectively prevent bad by unfirmly closing；Lightning protection effect is enhanced, safety guard prevents wire clamp from being corroded by sleet, extends service life.

Description

Lightning protection hard composite insulation cross arm with safety guard and proof mechanism of water

Technical field

The utility model relates to a kind of lightning protection hard composite insulation cross arm with safety guard and proof mechanism of water, is mainly used for electricity The support of the line of force.

Background technique

The primary structure of the prior art includes insulation mandrel, metal top, metal bottom end and umbrella cover, the two of insulation mandrel End is separately connected the metal top for fixing power line and the metal bottom end for being fixedly mounted with electric pole, in the insulating core The surface recombination umbrella cover of the junction at stick and its both ends and metal top and metal bottom end.The disadvantage is that: metal top is only set There is a groove, power line is placed in the groove by when use, is bundled on metal top with wiring, the disadvantage is that power line is tied It ties up insecure；Gap between the both ends and metal top and metal bottom end of umbrella cover is easy water inlet, and not volatile, makes for a long time It causes metal top and metal bottom end to be rusted after, shortens service life；In addition, rubber umbrella cover is often by birds (such as crow Crow) peck bad, affect its insulation performance and service life.

Summary of the invention

The purpose of this utility model is just to provide a kind of lightning protection hard composite insulation cross arm with safety guard and proof mechanism of water, It is insecure to solve power line binding of the existing technology, the gap between the both ends and metal top and metal bottom end of umbrella cover It is easy water inlet and causes to corrode and rubber umbrella cover is pecked bad problem by birds.

The technical solution of the utility model is: a kind of lightning protection hard composite insulation cross arm with safety guard and proof mechanism of water, Including insulation mandrel, metal top, metal bottom end and umbrella cover, it is separately connected at the both ends of insulation mandrel for fixing power line Metal top and metal bottom end for being fixedly mounted with electric pole, in the insulation mandrel and its both ends and metal top and metal The surface recombination umbrella cover of the junction of bottom end, which is characterized in that the metal top be equipped with wire clamp, the wire clamp by bottom plate, Top plate and bolt composition, bottom plate are connect with metal top, and top plate is located at the upper surface of bottom plate, is equipped with and is used between bottom plate and top plate The arc groove of power line, the bottom plate and top plate is clamped mutually to fasten by bolt；The metal top and the top of umbrella cover it Between be equipped with the first proof mechanism of water, the structure of first proof mechanism of water is: being equipped with outside first in the metal top and umbrella cover adjacent Flange is equipped with first annular groove below first outward flange, and the upper end of the umbrella cover extend into the first annular groove It is interior；The umbrella cover is made of hard insulation；A reclinate lightning-arrest bar is connected in the side on the metal top, The discharge end towards the metal bottom end is equipped in the lower end of the bar of taking shelter from the thunder；It is equipped with and the bar of taking shelter from the thunder in the side of the metal bottom end The opposite discharge head of discharge end；The wire clamp is mounted in a safety guard, is equipped at the both ends of safety guard for across electric power The threading interface of line is equipped with for the lightning-arrest bar outlet across lightning-arrest pole-footing portion below the threading interface.

The utility model has the advantages that: increased wire clamp can be fixedly secured power line；It is located at umbrella cover both ends and metal roof The proof mechanism of water at end and metal bottom end, improves insulating properties；The water-proof plate of hard material effectively prevent bad by unfirmly closing, extends Service life；Lightning protection mechanism enhances lightning protection effect；Safety guard prevents wire clamp from being corroded by sleet, further prolongs the service life

Detailed description of the invention

Fig. 1 is overall structure (broken section) schematic diagram of the utility model first embodiment；

Fig. 2 is the right view of Fig. 1；

Fig. 3 is overall structure (broken section) schematic diagram of the utility model second embodiment；

Fig. 4 is overall structure (broken section) schematic diagram of the utility model 3rd embodiment；

Fig. 5 is the right view of Fig. 4；

Fig. 6 is overall structure (broken section) schematic diagram of the utility model fourth embodiment；

Fig. 7 is the structural schematic diagram of the utility model first embodiment installation safety guard part；

Fig. 8 is the right view of safety guard in Fig. 7；

Fig. 9 is structure (safety guard section view) schematic diagram of Fig. 4 or Fig. 6 embodiment installation safety guard part；

Mounting structure schematic diagram when Figure 10 is the utility model application (without safety guard).

Specific embodiment

Referring to Fig. 1, Fig. 2, Fig. 7 and Fig. 8, a kind of lightning protection hard with safety guard and proof mechanism of water of the utility model is compound absolutely The first embodiment of edge cross-arm, including insulation mandrel 1, metal top 3, metal bottom end 4 and umbrella cover 2, on the top of insulation mandrel 1 It is connected with the metal top 3 for fixing power line, is equipped with the gold for being fixedly mounted with electric pole in the lower end of insulation mandrel 1 Belong to bottom end 4, the surface recombination umbrella cover 2 at the insulation mandrel 1 and its both ends and metal top 3 and the junction of metal bottom end 4 (is set There are multiple umbrella disks 21).The lower part of metal bottom end 4 is flat, if there are two mounting holes 41.Above structure is the prior art.

It is characterized by: being equipped with wire clamp 5 on the metal top 3, the wire clamp is by bottom plate 51, top plate 52 and 53 groups of bolt At (or being structure as a whole) is welded on bottom plate 51 and metal top 3, and top plate 52 is located at the upper surface of bottom plate 51, in bottom plate 51 and top plate The arc groove 55 for clamping power line, the bottom plate and top plate are equipped between 52 by the mutually fastening of bolt 53 (in ellipse Top plate 52 two near focal points be equipped with through-hole, ellipse bottom plate 51 be equipped with corresponding screw hole, bolt 53 pass through top plate 52 through-hole is connected in the screw hole of bottom plate 51.Can also at the screw hole of bottom plate 51 connecting screw, top plate 52 is secured with nuts). The first proof mechanism of water is equipped between the metal top 3 and the top of umbrella cover 2, which includes: in the metal roof End 3 is equipped with the first outward flange with 2 upper end adjacent of umbrella cover, and first annular groove 31, institute are equipped with below first outward flange The top for stating umbrella cover 2 is extend into annular groove 31.

A reclinate lightning-arrest bar 6 is connected in the side on the metal top 3, is equipped in the lower end for taking shelter from the thunder bar 6 Towards the discharge end 61 of the metal bottom end 4；The discharge end 61 of (connection) and the lightning-arrest bar 6 is equipped in the side of the metal bottom end 4 Opposite discharge head 10.The enlarged-diameter of discharge end 61 and discharge head 10 improves discharge current.On 6 surface of lightning-arrest bar Equipped with insulating layer 62, the insulating layer 62 the discharge end 61 circumferential expansion at rainhat 63.Insulating layer 62 and rainhat 63 are It can be corroded with waterproof.

The discharge head 10 is located at one end of a U-bracket 11, is equipped with ground terminal in the other end of the U-bracket 11 Son 13 (for being grounded, enhances lightning protection effect), and the bottom of the U-bracket 11 (metal material) is fixed on the upper of the metal bottom end 4 Portion.

When there is strong thunder and lightning, breakdown electric discharge between the discharge end 61 and discharge head 10 of bar 6 of taking shelter from the thunder prevents cross-arm to be electrically shocked Damage.

The wire clamp 5 is mounted in a safety guard 7, is equipped at the both ends of safety guard 7 for the threading across power line Interface 71 is equipped with below the threading interface 71 and exports 72 for the lightning-arrest bar across lightning-arrest 6 root of bar.Safety guard 7 One embodiment it is as shown in Figure 7 and Figure 8, can be made of rubber, thread the part at 71 center of interface or more be it is whole, with Lower part is symmetrically separated using threading 71 center of interface and the line at the center of lightning-arrest bar outlet 72 as interface or so (Fig. 8), The edge of interface is equipped with butt joint edge 73, be equipped on the butt joint edge 73 of two sides mutual locked mechanism (through-hole as shown in Figure 8 and Pinning 74；It can also be equipped with pinning 74 in the butt joint edge 73 of side, the butt joint edge 73 of the other side is equipped with through-hole).

The top surface of the top plate 52 of the wire clamp 5 can also be equipped with arc groove 54, the arc groove 54 of 52 upside of the top plate with The arc groove 55 of downside it is of different size (in figure above 54 width of arc groove be greater than downside arc groove 55 width Degree, can also be opposite), such design, the power line that can be suitable for clamping different-diameter by overturning top plate 52 expands suitable Use range.

Referring to Fig. 3, which is equipped with second on the basis of a upper embodiment, in metal bottom end 4 and 2 adjacent of umbrella cover Proof mechanism of water, second proof mechanism of water include: to be equipped with the second outward flange in metal bottom end 4 and 2 adjacent of umbrella cover, this outside second The upper surface of flange is equipped with second annular groove 42, and the lower end of the umbrella cover 2 is extend into second annular groove 42.

Referring to fig. 4 and Fig. 5, the embodiment and first embodiment except that by the direction of wire clamp 5 towards side The link 12 of (vertical with above embodiment), wire clamp bottom is the prior art, for across traction rope when constructing or repairing. The embodiment is only equipped with proof mechanism of water on the top of umbrella cover 2.And the embodiment of Fig. 6 is to be equipped with waterproof at the both ends of umbrella cover 2 Mechanism.The structure of proof mechanism of water is identical as above embodiment.

Safety guard 7 shown in Fig. 9 is mounted in Fig. 4-embodiment shown in fig. 6, and basic structure is by a top The butt joint edge 73 of box body 75 and two symmetrical 76 three parts of lower part box body compositions, top box body 75 and lower part box body 76 with 5 middle part of wire clamp is corresponding；Threading interface 71 is equipped in the middle part of the opposite butt joint edge 73, in the interface of two lower part box bodys 76 Lower part is equipped with for the opening 761 across link 12 and its with 3 junction of metal top.Box body 75 and lower part box body 76 on top It is connected between corresponding butt joint edge 73 with screw 8.The safety guard 7 of the embodiment can be made of rubber or plastics.

The top plate 51 of the wire clamp 5 of the utility model is made of metal material or insulating materials.

The umbrella cover 2 of the utility model is made of hard insulation, and the hard insulation includes: thermosetting resin (such as epoxy resin), thermoplastic resin (such as polyolefin, HDPE, PP, PA), engineering plastics and thermoplastic elastomer (s) are (such as TPE, TPV, TPU), etc..

Referring to Figure 10, the cross-arm combination of the wire clamp 5 of two kinds of different directions can be mounted on by the utility model in application On a piece electric pole C, the cross-arm A of first embodiment is such as vertically fixed on to the top of electric pole C, on the top electric pole C Two sides are symmetrically installed the cross-arm B of a pair of of Fig. 4-embodiment shown in fig. 6.It is each on the wire clamp 5 of three cross-arms to fix an electric power Line.

Claims (9)

1. a kind of lightning protection hard composite insulation cross arm with safety guard and proof mechanism of water, including insulation mandrel, metal top, metal Bottom end and umbrella cover are separately connected metal top for fixing power line at the both ends of insulation mandrel and for fixing with electric pole The metal bottom end of installation, the surface recombination umbrella in the junction at the insulation mandrel and its both ends and metal top and metal bottom end Set, which is characterized in that be equipped with wire clamp on the metal top, which is made of bottom plate, top plate and bolt, bottom plate and metal Top connection, top plate are located at the upper surface of bottom plate, and the arc groove for clamping power line, the bottom are equipped between bottom plate and top plate Plate and top plate are mutually fastened by bolt；The first proof mechanism of water is equipped between the metal top and the top of umbrella cover, this first The structure of proof mechanism of water is: the first outward flange is equipped on the metal top and umbrella cover adjacent, below first outward flange Equipped with first annular groove, the upper end of the umbrella cover is extend into the first annular groove；The umbrella cover is by rigid insulation material Material is made；A reclinate lightning-arrest bar is connected in the side on the metal top, is equipped with direction in the lower end of the bar of taking shelter from the thunder The discharge end of the metal bottom end；The discharge head opposite with the discharge end of the bar of taking shelter from the thunder is equipped in the side of the metal bottom end；It is described Wire clamp be mounted in a safety guard, be equipped at the both ends of safety guard for the threading interface across power line, one this wear It is equipped with below line interface for the lightning-arrest bar outlet across lightning-arrest pole-footing portion.

2. the lightning protection hard composite insulation cross arm according to claim 1 with safety guard and proof mechanism of water, which is characterized in that The upper surface of the top plate of the wire clamp also is provided with arc groove, the arc groove of the upper and lower two sides of the top plate it is of different size.

3. the lightning protection hard composite insulation cross arm according to claim 1 with safety guard and proof mechanism of water, which is characterized in that The second proof mechanism of water is equipped between the metal bottom end and the bottom end of umbrella cover, which, which obtains structure, is: at this Metal bottom end and umbrella cover adjacent are equipped with the second outward flange, are equipped with second annular groove in the upper surface of second outward flange, described The lower end of umbrella cover is extend into the second annular groove.

4. the lightning protection hard composite insulation cross arm according to claim 1 with safety guard and proof mechanism of water, which is characterized in that The top plate of the wire clamp is made of metal material or insulating materials.

5. the lightning protection hard composite insulation cross arm according to claim 1 with safety guard and proof mechanism of water, which is characterized in that The wire clamp is axial in the same direction or vertical with insulation mandrel.

6. the lightning protection hard composite insulation cross arm according to claim 1 with safety guard and proof mechanism of water, which is characterized in that The hard insulation includes: thermosetting resin, thermoplastic resin, engineering plastics or thermoplastic elastomer (s).

7. the lightning protection hard composite insulation cross arm according to claim 1 with safety guard and proof mechanism of water, which is characterized in that The lightning-arrest bar surface be equipped with insulating layer, the insulating layer the discharge end circumferential expansion at rainhat.

8. the lightning protection hard composite insulation cross arm according to claim 1 with safety guard and proof mechanism of water, which is characterized in that The discharge head is located at one end of a U-bracket, is equipped with ground terminal in the other end of the U-bracket, the U-bracket Bottom is fixed on the top of the metal bottom end.

9. the lightning protection hard composite insulation cross arm according to claim 1 with safety guard and proof mechanism of water, which is characterized in that The safety guard is made of rubber, and the part for threading interface center or more is entirety, and part is below to thread in interface The line at the center that the heart is exported with lightning-arrest bar is that interface bilateral symmetry separates, and butt joint edge is equipped at the edge of interface, two The butt joint edge of side is equipped with mutual locked mechanism.