CN201750108U

CN201750108U - Bolt strain clamp

Info

Publication number: CN201750108U
Application number: CN2010202393040U
Authority: CN
Inventors: 陈星存; 何祥勇; 叶丽云; 李尧东; 李应发; 张小强; 麻清华; 钱师贵
Original assignee: SHANGYUAN ELECTRIC POWER SCIENCE TECHNOLOGY Co Ltd
Current assignee: SHANGYUAN ELECTRIC POWER SCIENCE TECHNOLOGY Co Ltd
Priority date: 2010-06-23
Filing date: 2010-06-23
Publication date: 2011-02-16
Anticipated expiration: 2020-06-23

Abstract

The utility model relates to a bolt strain clamp, which comprises a clamp body made of high intensity nonmagnetic aluminum alloy, a clamp pressure plate, a U-shaped bolt, an outer hexagonal bolt, a hexagonal nut and an R-shaped locking pin. The clamp body is provided with a cable groove body with a curved section and the tail part thereof is provided with multiple pairs of through holes. The through holes are arranged at the two sides of the cable groove body and are symmetrical around the cable groove body. The upper end of the clamp pressure plate is provided with a transverse groove body which is matched with the U-shaped bolt and the lower end thereof is provided with a longitudinal groove body which corresponds to the cable groove body of the clamp body. The depth of the cable groove body of the clamp body is larger than the radius of a lead wire. The radius of the longitudinal groove body of the clamp pressure plate is matched with the bottom radius of the cable groove body and the longitudinal groove body is compactly matched with the outer diameter of the lead wire. The utility model has the beneficial effects of improving the intensity of the strain clamp, prolonging service life and convenient installation.

Description

The screw bolt-type strain clamp

Technical field

The utility model relates to a kind of screw bolt-type strain clamp that is used for overhead transmission line.

Background technology

In electric power network, the screw bolt-type strain clamp can be on the strain insulator bar fixedly aluminium stranded conductor or steel reinforced aluminium conductor, be used for the supporting use of suspended insulated guide wire and insulating cover, play the insulating protection effect, often there is following shortcoming in actual use in this screw bolt-type strain clamp: need wire clamp main body, wire clamp pressing plate, U-bolt and the supporting use of band when 1, installing, be difficult to the location, cause installation extremely inconvenient; 2, the trunking body degree of depth of the wire clamp main body of the screw bolt-type strain clamp in the use at present causes lead incomplete with contacting of wire clamp main body less than the lead radius, causes its frictional force deficiency, easily loose or dislocation; Defectives such as 3, the screw bolt-type strain clamp on the market adopts the ferrimagnet manufacturing, forms closed magnet ring between each parts, and hysteresis is serious, and power consumption is big, and ubiquity intensity is lower, useful life is short.

Summary of the invention

The purpose of this utility model is to overcome the defective of prior art, and a kind of high strength, long service life and screw bolt-type aluminium alloy strain clamp easy for installation are provided.

For achieving the above object, the utility model adopts a kind of high-intensity screw bolt-type aluminium alloy strain clamp, comprise the wire clamp main body, the wire clamp pressing plate, U-bolt, the outer-hexagonal bolt, hex nut and R type locking pin, wherein wire clamp main body trunking body and its tail position that to have a cross section be shaped form has many to through hole, described through hole is arranged on trunking body both sides and with respect to this trunking body symmetry, wherein the upper end of wire clamp pressing plate have one with the suitable horizontal cell body of described U-bolt, the lower end has a corresponding vertical cell body of the trunking body with described wire clamp main body, described U-bolt becomes one by the horizontal cell body in the upper end of inserting this wire clamp pressing plate, and two legs of this U-bolt are passed described through hole, be fixed on the wire clamp main body with hex nut, it is characterized in that: the strain clamp that adopts the high-strength nonmagnetic aluminium alloy to make, the trunking body degree of depth of its described wire clamp main body is greater than the lead radius, the radius of the vertical cell body radius of described wire clamp pressing plate and described trunking body bottom is complementary, and this vertical cell body and wire diameter compactness and be complementary.

After technique scheme, because this screw bolt-type strain clamp has adopted high-intensity non magnetic aluminium alloy manufacturing, and the trunking body is more comprehensive with contacting of lead, increase the frictional force between lead and the withstand voltage wire clamp simultaneously, reached the effect of high strength, long service life and difficult drop-off.

The front end side of described wire clamp main body also has a through hole, and wherein said outer-hexagonal bolt is fixed by this through hole and by hex nut, and the front end of this outer-hexagonal bolt is equipped with a R type locking pin, prevents to fix the coming off of hex nut of this outer-hexagonal bolt.This kind is arranged on and played positioning action in the installation process, with the loaded down with trivial details operation of band location, really reached effect easy for installation when having avoided original the installation.

Description of drawings

Fig. 1 is the front view of the withstand voltage wire clamp of the utility model embodiment.

Fig. 2 is the left view of the withstand voltage wire clamp of the utility model embodiment.

Fig. 3 is the front view of the utility model embodiment wire clamp main body.

Fig. 4 is the left view of the utility model embodiment wire clamp main body.

Fig. 5 is the upward view that the utility model is implemented the wire clamp main body.

Fig. 6 is the vertical view of the utility model embodiment wire clamp main body.

Fig. 7 is that the A-A of Fig. 4 among the utility model embodiment is to partial sectional view.

Fig. 8 is the vertical view of the utility model embodiment wire clamp pressing plate.

Fig. 9 is the front view of the utility model embodiment wire clamp pressing plate.

Figure 10 is that the C-C of Fig. 9 among the utility model embodiment is to cutaway view.

Figure 11 is that the B-B of Fig. 8 among the utility model embodiment is to cutaway view.

Figure 12 is the front view of U-bolt among the utility model embodiment.

Embodiment

Shown in Fig. 1-12, specific embodiment of the utility model is a kind of screw bolt-type aluminium alloy strain clamp, comprise a wire clamp main body 1 that adopts non magnetic extraordinary aluminium alloy to make, three wire clamp pressing plates 2, three U-bolts 3, an outer-hexagonal bolt 7, seven hex nuts 6 and a R type locking pin 9, wherein wire clamp main body 1 trunking body 11 and its tail position that to have a cross sectional shape be circular arc has three pairs of through holes 12, described through hole 12 is arranged on trunking body 11 both sides and with respect to this trunking body symmetry, wherein the upper end of wire clamp pressing plate 2 have one with the suitable horizontal cell body 21 of described U-bolt 3, the lower end has a vertical cell body 22 of trunking body 11 corresponding circular arcs with described wire clamp main body 1, after U-bolt 3 being inserted the horizontal cell body 21 in upper end of this wire clamp pressing plate, two legs with this U-bolt 3 pass described through hole 12 again, be fixed on the wire clamp main body 1 with hex nut 6, wherein trunking body 11 degree of depth of wire clamp main body 1 are greater than the lead radius, the radius of vertical cell body 22 radiuses of described wire clamp pressing plate 2 and described trunking body 11 bottoms is complementary, and this vertical cell body 22 and wire diameter compactness also are complementary, can more effectively hold after product is installed contact-making surface between aerial insulated wire and strain clamp makes it that better lasting grip be arranged.

The front end of wire clamp main body 1 also has a through hole 13 as shown in Figure 3, fix by this through hole 13 and by one of them hex nut 6 with reference to the described as can be known outer-hexagonal bolt 7 of Fig. 1, wherein the front end of this outer-hexagonal bolt 7 is equipped with a R type locking pin 9, prevents to fix the coming off of hex nut 6 of this outer-hexagonal bolt.

Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description, and these belong to conspicuous variation or the change that spirit of the present utility model amplified out and still are among the protection range of the present utility model.

Claims

1. screw bolt-type strain clamp, comprise the wire clamp main body, the wire clamp pressing plate, U-bolt, the outer-hexagonal bolt, hex nut and R type locking pin, wherein wire clamp main body trunking body and its tail position that to have a cross section be shaped form has many to through hole, described through hole is arranged on trunking body both sides and with respect to this trunking body symmetry, wherein the upper end of wire clamp pressing plate have one with the suitable horizontal cell body of described U-bolt, the lower end has a corresponding vertical cell body of the trunking body with described wire clamp main body, described U-bolt becomes one by the horizontal cell body in the upper end of inserting this wire clamp pressing plate, and two legs of this U-bolt are passed described through hole, be fixed on the wire clamp main body with hex nut, it is characterized in that: the strain clamp that adopts the high-strength nonmagnetic aluminium alloy to make, the trunking body degree of depth of its described wire clamp main body is greater than the lead radius, the radius of the vertical cell body radius of described wire clamp pressing plate and described trunking body bottom is complementary, and this vertical cell body and wire diameter compactness and be complementary.

2. screw bolt-type strain clamp according to claim 1, it is characterized in that: the front end side of described wire clamp main body is provided with a through hole, wherein said outer-hexagonal bolt is fixed by this through hole and by hex nut, the front end of this outer-hexagonal bolt is equipped with a R type locking pin, prevents to fix the coming off of hex nut of this outer-hexagonal bolt.