CN2319941Y

CN2319941Y - Tension durable line clamp of power transmission and distribution circuit

Info

Publication number: CN2319941Y
Application number: CN 97230212
Authority: CN
Inventors: 高正贤
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-16
Filing date: 1997-12-16
Publication date: 1999-05-19
Anticipated expiration: 2007-12-16

Abstract

The utility model relates to a tension durable line clamp of an electric transmission and distribution circuit. A casing of the utility model is formed by integrative molding, the bottom of the utility model is provided with a bearing hole, and the radial direction of the bearing hole is an inverse J type. A through hole and a positioning hole are arranged at a proper position of the lower edge of the bearing hole, and a taper hole is arranged at the upper edge of the bearing hole. An insulating sleeve is a U-shaped groove shape, a circular arc groove is arranged at the inner edge of the groove shape, a convex column is arranged at one end of the bottom of the outer edge of the groove shape, and the other end of the bottom of the outer edge of the groove shape is formed into a positioning convex column. A line clamping groove is arranged at the bottom of a wedging end of an oblique wedge, a tail wedging end of the oblique wedge is extended to a stage bearing seat, and two locking hole and a guiding groove are arranged on the oblique wedge. The guiding groove and the line clamping groove are extended and connected with each other. A spacer block is a half-arc shape, an inlay ditch is arranged at the back surface of the half-arc shape, and a clamping groove is arranged at the inner side surface of the half-arc shape. When the utility model is used, the looseness of an electric line is not generated even if the external force cause the electric line to do pulling action and swinging action, on the contrary, the electric line can be tightly clamped.

Description

The strain clamp of transmission and distribution circuit

The utility model relates to a kind of strain clamp of transmission and distribution circuit.

The spiral type strain clamp of traditional type is covered mutually by two cover plates, behind traction electric wire between two cover plates, held the location with U-bolt, right its must carry out screw lock in the high-altitude in group immediately, therefore existing strain clamp is very numerous and diverse and inconvenient when assembling traction electric wire, and electric wire is endured high wind for a long time to the fullest extent and is blown and rock, cause bolt and nut very easily to produce the phenomenon that gets loose, and being taken off with wire clamp gradually, moves by electric wire, and the dangerous facts such as electric power leaks outside take place, need the capable again screw lock assembling of backguy again, but the rule of maintenance engineering, only time and effort consuming and very economic.

The purpose of this utility model is to provide a kind of strain clamp of transmission and distribution circuit, it can be installed on the electric wire simply, play traction assembling effect, and make electric wire not because of the tearing of external force, wave and get loose, make tight clamping on the contrary, make the electric wire difficult drop-off and more be tight clamping, and unregulated power leaks outside.

The purpose of this utility model is achieved in that a kind of strain clamp of transmission and distribution circuit, by members such as a housing, an insulating case, a wedge and cushion blocks, cooperating a U-bolt to wear forms, its middle shell is formed in one and makes, has a hole of holding that radially is anti-J type in its bottom, hold hole lower edge appropriate location and offer a perforation and a location hole, hold the hole upper limb again and establish for wedge and agree with the taper hole of gradient; Insulating case is the groove shape of a U type, and groove shape inner edge is established an arc groove, and establishes a projection in groove shape outer rim bottom one end, and end then has been shaped as a location projection in addition; Wedge is moulded tiltedly by the engineering of insulation high strength material and is made, and goes into bottom portion in contract and establishes a clamp groove, and contract is not gone into end and then extended class's bearing, which is provided with two lockholes and a guide channel, and guide channel is connected for being mutual extension with the clamp groove; Cushion block is half camber, and an embedding ditch is then established at the camber back side, and medial surface is established a clip slot.

The utility model is simple in structure, install, easy to maintenance, and tight clamping electric wire, and make electric wire not because of the tearing of external force, wave and get loose, make tight clamping on the contrary, and unregulated power leaks outside.

Following conjunction with figs. describes the technical solution of the utility model in detail.

Fig. 1 is assembly figure of the present utility model.

Fig. 2 is the exploded perspective view of Fig. 1.

Fig. 3 is the assembly stereogram of the utility model middle shell and insulating case.

Fig. 4 is the combination stereogram of wedge and cushion block in the utility model, U-bolt.

Fig. 5 is the lateral plan of Fig. 3.

Fig. 6 is the A-A sectional drawing among Fig. 5.

Fig. 7 is the front view of Fig. 1.

Fig. 8 is among Fig. 7-the B sectional drawing.

As shown in Figures 1 and 2, the utility model is a kind of strain clamp of transmission and distribution circuit, and it cooperates U-bolt 5 to be formed by members such as a housing 1, an insulating case 2, a wedge 3 and cushion blocks 4; Its middle shell 1 is formed in one and makes, its bottom have one radially be anti-J type hold hole 11, hold hole 11 lower edge appropriate locations and offer a perforation 111 and locate 112, each runs through respectively holds hole 11 lower edges, hold hole 11 upper limbs and establish the taper hole 113 of gradient in, agree with usefulness for wedge 3; Insulating case 2 is the groove shape of a U type, groove shape inner edge is established an arc groove 21, all has the flange 211,211 ' that turns up in its two end, and one end appropriate location is established a projection 22 in groove shape outer rim bottom, and on projection 22, establish a screw 211, in order to fixing screw lock screw 222, end then is formed with a location projection 23 in addition: wedge 3 is made by the engineering plastics of insulation high strength material; It is a long square italic shape that its contract is gone into end 31, goes into end 31 bottoms in contract and establishes a clamp groove 311, and contract is not gone into end and then extended one-level bearing 32, which is provided with two lockholes 321 and a guide channel 322, and guide channel 322 is connected with the 311 mutual extensions of clamp groove; Cushion block 4 is half camber, and two ends up and down of camber respectively extend an auricle 41, and it then establishes an embedding ditch 42 in the camber back side, and medial surface is established a clip slot 43, and respectively establishes a full hole 411 in auricle 41 appropriate locations up and down.

Utilize above-mentioned member, insulating case 2 can be layed in housing 1 set hold 11 inner edges belows, hole (as shown in Figure 3), and utilize the flange 211,211 that turns up of insulating case 2 to be fastened in two outside end faces that hold hole 11 respectively, make the projection 22 and the positioning convex column 23 of insulating case 2, each is corresponding housing 1 set perforation 111 and the location hole 112 that holds hole 11 lower edges respectively, and run through perforation 111 with fixed screw 222 and screw togather with screw 211, make housing 1 and insulating case 2 do firm combining (such as Fig. 5 and Fig. 6 ground).Moreover, the guide channel 322 that cooperates wedges 3 with the clip slot 43 of cushion block 4 with electric wire 6 clampings wherein, run through the bolt hole 411 of cushion block 4 and the lockhole 321 of wedge 3 with U-bolt 5 again, utilize nut to screw togather, make electric wire 6 and wedge 3 and cushion block 4 give integrator (as shown in Figure 4).So, the wedge 3 that will combine with electric wire 6 again makes its wedging end 31 contracts go in the set taper hole 113 that holds hole 11 upper limbs of housing 1 (as Fig. 7 and shown in Figure 4), and electric wire 6 haulage clips are located between the arc groove 21 of the arc groove 311 of wedge 3 bottoms and insulating case 2; So combination, even electric wire 6 clamping firmly, no matter how external force is rocked or is shaken, and all is difficult for getting loose, and can more be the effect of tightr clamping.

Claims

1, a kind of strain clamp of transmission and distribution circuit, by members such as a housing, an insulating case, a wedge and cushion blocks, cooperating a U-bolt to wear forms, it is characterized in that: housing is formed in one and makes, has a hole of holding that radially is anti-J type in its bottom, hold the hole lower edge and offer a perforation and a location hole, hold the hole upper limb again and establish for wedge and agree with the taper hole of gradient; Insulating case is the groove shape of a U type, and groove shape inner edge is established an arc groove, and establishes a projection in groove shape outer rim bottom one end appropriate location, and end then has been shaped as a location projection in addition; Wedge is moulded tiltedly by the engineering of insulation high strength material and is made, and goes into bottom portion in contract and establishes a clamp groove, and contract is not gone into end and then extended class's bearing, which is provided with two lockholes and a guide channel, and guide channel is connected for being mutual extension with the clamp groove; Cushion block is half camber, and an embedding ditch is then established at the camber back side, and medial surface is established a clip slot.