CN204632469U - Lightning protection tension string - Google Patents

Abstract

The utility model discloses a kind of lightning protection strain insulator-string, comprise insulator, strain clamp and penetrating cable clamp; The connection gold utensil at described insulator two ends is fixed with the striking head be oppositely arranged, forms discharging gap L between two described striking heads, described strain clamp is connected by the connection gold utensil of pull bar with described insulator one end; The outside of described penetrating cable clamp is provided with insulating sleeve; Described penetrating cable clamp is arranged in the wire jumper part of wire, and the folder lid of described penetrating cable clamp and the striking head closed on it make one.In the utility model, because described penetrating cable clamp is arranged in the wire jumper part of wire, so penetrating cable clamp after mounting, and wire does not affect by the tension force of strain clamp, thus avoid wire insulation slippage; The folder lid of described penetrating cable clamp and the striking head that closes on it are made one simultaneously, eliminate striking wire and corresponding parts, product structure is more simplified, reduces production cost, improve installation effectiveness.

Description

Lightning protection tension string

technical field

The utility model relates to a lightning protection tension string.

Background technique

The patent document CN201438627U discloses a lightning protection insulator strain-resistant clamp that has the functions of lightning protection insulation, electrical inspection and grounding, automatic puncture conduction, clamping and fixing, hanging and pulling wires, and can achieve the whole insulation function. String, at the right end of the lightning protection suspension insulator, through the insulator pull ring and the U-shaped pull ring, suspend and connect the tapered anti-slip strain clamp, the cable overhead line passes through the tapered anti-slip strain clamp, in the tapered anti-slip strain clamp The small end cable overhead line of the tensioning clamp passes through the puncture clamp body and the puncture clamp pressure block, and the cable is punctured and clamped with nuts, and the upper end hole of the puncture clamp pressure block is compressed and connected to the upper arc strike wire , the other end of the arc strike wire is compressed and connected to the opening hole of the adjustable arc strike rod press block, and the adjustable arc strike rod press block passes through the press block bolt to press the adjustable arc strike rod on the arc strike rod clamp wire insulation bracket Above, at the left end of the lightning protection suspension insulator, there is a fixed arc striker, a fixed discharge gap is formed between the fixed arc striker and the adjustable arc striker bracket, and the arc striker clamp wire insulating support is clamped by the arc striker The wire insulation bracket pressing block is clamped and fixed on the lightning protection suspension insulator. At the lower end of the piercing wire clamp body, it is compressed and connected to the upper transition connecting rod. On the fixed support plate of the open and close ground rod, connect and fix the open and close type electric test ground rod with nuts, on the open and close type electric test ground rod, the open and close type ground rod cover assembly is installed, and on the puncture line clamp pressing block , equipped with insulating sleeves for open and close grounding rods, all exposed conductive parts of the part where the grounding rods are installed are all enclosed in insulating sleeves, and on the adjustable arc striking rod pressing block, there is an insulating sleeve for adjustable arc striking rods, Enclose all the exposed conductive parts of the adjustable arc striking rod in the insulating sleeve for the adjustable arc striking rod. The work of the present invention is to directly fix and connect to the line pole through connecting fitting bolts and connecting fittings. on the crossarm. The problems existing in the lightning protection insulator tension clamp string in the above-mentioned patent documents are: (1) the ground clamp is installed in front of the tension clamp, that is, the ground clamp is installed on the tensioned part of the wire, and adopts a piercing structure , After the grounding clamp is punctured and installed, the wire will bear the tension of the strain clamp for a long time, which will cause the insulation layer of the running wire to slip; If the firmware is loose, the direction of the arc strike head on the pole side will be deflected, resulting in a change in the discharge gap, which will not play the role of arc strike and lightning protection; At the same time, it is necessary to connect the arc lead wire to the arc head, which makes the installation operation more cumbersome and increases the danger of working at heights.

Utility model content

In this regard, the technical problem to be solved by the utility model is that the use of the existing lightning protection and strain strings will cause the insulation layer of the running wire to slip, and the installation and operation are cumbersome.

The technical scheme that realizes the utility model purpose is:

A lightning protection strain string, comprising an insulator, a strain clamp and a puncture clamp; the connecting fittings at both ends of the insulator are fixed with relatively arranged arc strikers, and a discharge gap L is formed between the two arc strikers , the strain-resistant clamp is connected to the connecting hardware at one end of the insulator through a pull rod; the outside of the piercing clamp is provided with an insulating sheath; The clip cover of the clip is made into one piece with its adjacent arc striker.

In the above technical solution, a grounding ring is fixed at one end of the clamp seat of the puncture wire clamp facing away from the clamp cover, and a lead wire portion connected to the ground wire is provided on the grounding ring.

In the above technical solution, when the lightning protection tension string is installed and operated, the arc striker and the grounding ring are arranged facing directly downward.

The utility model has positive effects:

(1) In the lightning protection tension string of the present utility model, since the puncture wire clip is arranged on the jumper part of the wire, after the puncture wire clip is installed, the wire is not affected by the tension of the tension wire clip, Thereby avoiding the slipping of the wire insulation layer; at the same time, the cover of the piercing wire clip and the arc striking head adjacent to it are integrated, so that the arc striking wire and corresponding parts are omitted, and the product structure is simplified. The production cost is reduced and the installation efficiency is improved.

(2) In the lightning-proof and strain-resistant string of the present utility model, a grounding ring is fixed at one end of the clip seat of the puncture wire clamp facing away from the clamp cover, and the grounding ring is provided with a lead part connected to the ground wire; through With this structure, the grounding wire is connected to the lead wire of the grounding ring to achieve grounding during line maintenance, thereby ensuring the personal safety of line maintenance personnel.

(3) When the lightning-proof tension string of the utility model is installed and operated, the arc-leading head is set facing directly below, so that the arc-leading head is not easy to deflect, thereby avoiding changes in the discharge gap and ensuring the lightning protection of the product effect; in addition, setting the grounding ring facing directly below can facilitate the connection of the ground wire.

Description of drawings

Fig. 1 is a structural schematic diagram of the lightning protection strain string of the present invention.

The reference signs shown in the figure are: 1-insulator; 2-tension clamp; 3-connection fitting; 4-arc head; 5-tie rod; 6-puncture clamp; 7-wire; 8-jumper ; 9-grounding ring; 91-lead part; 10-clamp seat; L-discharge gap.

Detailed ways

Below in conjunction with accompanying drawing of description, the specific structure of lightning protection strain string of the present utility model is done to illustrate:

A kind of lightning protection strain string, as shown in Figure 1, it comprises insulator 1, strain clamp 2 and piercing clamp; Described insulator 1 two ends are fixed with the arc striker 4 that is oppositely arranged on the connection fittings 3, so A discharge gap L is formed between the two arc strikers 4 described above, and the tension clamp 2 is connected to the connecting fitting 3 at one end of the insulator 1 through a pull rod 5; an insulating sheath is provided on the outside of the piercing clamp (Fig. not shown in); the piercing wire clip is arranged on the jumper part 8 of the wire 7, and the clip cover 6 of the piercing wire clip and the arc striker 4 adjacent thereto are integrated. In this embodiment, since the puncture wire clip is arranged on the jumper part 8 of the wire 7, after the puncture wire clip is installed, the wire 7 is not affected by the tension of the tension wire clamp 2, thereby avoiding the tension of the wire 7 The insulation layer slips; at the same time, the clamp cover 6 of the piercing wire clip and the arc strike head 4 adjacent to it are made into one, so that the arc strike wire and corresponding parts are omitted, which makes the product structure more simplified and reduces the Reduce production costs and improve installation efficiency.

In this embodiment, a grounding ring 9 is fixed at one end of the clamp seat 10 of the puncture wire clamp facing away from the clamp cover 6, and a lead wire portion 91 connected to a ground wire is provided on the grounding ring 9; further, in addition to the The lead part 91 is exposed outside the atmosphere, and the other parts of the grounding ring 9 are covered with an insulating layer. By adopting this structure, the ground wire is connected to the lead part 91 of the grounding ring 9 to achieve grounding during the maintenance of the line, thereby ensuring the personal safety of the line maintenance personnel. The grounding ring 9 in this embodiment is fixedly connected to the clamping seat 10 by bolts; in practice, the grounding ring 9 and the clamping seat 10 can also be made into an integral structure.

Further, when the lightning protection strain string is installed and operated, the arc striker 4 is set facing directly below, so that the arc striker 4 is not easy to deflect, thereby avoiding the change of the discharge gap L and ensuring the lightning protection effect of the product ; In addition, setting the grounding ring 9 facing directly below can facilitate the connection of the ground wire.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And these obvious changes or changes derived from the essential spirit of the present utility model still belong to the protection scope of the present utility model.

Claims (3)

1. A lightning protection strain string, comprising an insulator (1), a strain clamp (2) and a piercing clamp; the connecting fittings (3) at both ends of the insulator (1) are fixed with relatively arranged arc strikers (4), a discharge gap (L) is formed between the two arc strikers (4), and the tension clamp (2) is connected to the connecting fitting (3) at one end of the insulator (1) through a pull rod (5) ) connected; the outside of the piercing wire clip is provided with an insulating sheath; it is characterized in that: the piercing wire clip is set on the jumper part (8) of the wire (7), and the clip cover (6) of the piercing wire clip ) and its adjacent arc striker (4) are integrated. 2. The lightning-proof and strain-resistant string according to claim 1, characterized in that: a grounding ring (9) is fixed at the end of the clamp seat (10) of the puncture wire clamp facing away from the clamp cover (6). The grounding ring (9) is provided with a lead portion (91) connected to the grounding wire. 3. The lightning protection and strain string according to claim 2, characterized in that, when the lightning protection and strain string is installed and operated, the arc striker (4) and the grounding ring (9) are arranged facing directly downward.