CN101814711A - Energy-saving automatic strain clamp - Google Patents

Abstract

The invention discloses an energy-saving automatic strain clamp, comprising: a clamp body, tapered clamp bodies, a body clamping plate, a tapered end cap, a setscrew, a U-shaped screw rod and an annular clamping body spring, wherein the clamp body is a tapered tubular body, one end of one of two tapered clamp bodies is provided with an engageable half gear, the outer side of the larger end of the tapered clamp body is circumferentially provided with an annular channel which is internally sleeved with the annular clamping body spring, and the inner side thereof is provided with an arc-shaped groove which is internally provided with slide-proof convex lines, a conducting wire penetrating hole is formed in the center after two tapered clamp bodies are engaged with each other, and the front and rear ports of the hole are provided with an R corner respectively; the external taper of the tapered clamp bodies is identical to the tape of the clamp body, the tapered clamp bodies can be engaged with the tapered tubular body of the clamp body when the conducting wire penetrates through the hole, and the tapered end cap, as a plug body, is provided, in the center thereof, with a round hole having an inner diameter which is slightly larger than that of the conducting wire penetrating hole of the tapered clamp bodies, the external end part of the round hole is provided with the R corner, the plug body can be engaged with an end hole at the tail of the clamp body by means of the fixation of the setscrew, and the clamp body is connected to the body clamping plate in an inserting manner and fixed to a tower pole via the U-shaped screw rod.

Description

Energy-saving automatic strain clamp

Technical field

This invention relates to a kind of electric armour clamp material, exactly discloses a kind of energy-saving automatic strain clamp.

Background technology

Setting up the strain clamp that uses in the operation at transmission line has a variety of, with the utility model the most approaching be that application number is 02273208.X, name is called: the quick strain clamp of aluminium alloy mainly comprises: strain insulator arm-tie on the supporting tailstock at the lead folder in the wire clamp body, the holddown spring at folder rear portion, body rear portion, the supporting tailstock and the U type screw rod on the strain insulator arm-tie.During use, earlier the U type screw rod on the body is fixed on the overhead line structures, lead is penetrated from the body front hole, pass from tailstock hole, back, holddown spring compresses in the wire clamp when lead makes to the fashionable external force of wire clamp interpolation, and folder afterbody in pipe moves, and this moment, the folder diameter increased.When stopping to insert, be compressed spring and begin to discharge and promote folder and move forward, thereby lead is clamped.Be subjected to stringing tension force big more, big more to the clamping force of lead, lead and wire clamp fluid-tight engagement are in the same place.Its effect is exactly not only lead to be played the firm effect of tension in erecting power transmission lines, and damage wires not, and execute-in-place is very easy, has great practicality.But this kind wire clamp also has weak point, and the Kazakhstan anti-skidding teeth groove of furan type that is exactly wire clamp spare has two, and respectively there is a tooth on both sides, its effect and one side are provided with an anti-slop serrations, it is identical that another side is provided with the teeth groove effect, and this bidentate is designed to make has increased technical difficulty, and reduces the intensity of folder; In the wire clamp body holddown spring is set, its effect is that folder is pressed under the effect of conical tube, strengthen the clamping force of folder, play the effect of firm lead, but since in establish holddown spring, taken the inner space of a part of conical tube, correspondingly shortened the length of folder, while has also reduced folder and lead fastening, and influence clamps effect, and inserting also of holddown spring increased difficulty to fitting operation.

Summary of the invention

Energy-saving automatic strain clamp solves the existing deficiency of above-mentioned technology and disclosed a kind of technology exactly.Mainly comprise: wire clip body, taper clamp, body clamping plate, conical head, dog screw, U-shaped screw rod, annular clamp spring; It is characterized in that: wire clip body is a kind of tapered tubular body, and less stomidium is anterior stomidium, and bigger stomidium is the afterbody stomidium, is provided with 1 positioning screw hole at the position near the afterbody stomidium; The taper clamp divides two, its shape volume is identical, one side of a bigger end is provided with breathes out the furan tooth, opposite side be provided with can with the corresponding teeth groove of Kazakhstan furan tooth of another piece taper clamp, two taper clamps form a taper cylinder through breathing out the engagement of furan tooth, all along being equipped with ring-shaped groove at the taper cylinder near the outside of a bigger end, the inboard of taper clamp is provided with arc groove, the groove inboard is provided with anti-skidding burr, and the radian of front and back end is identical, after the two taper clamps engagements, wherein be formed centrally a cross section approximate ellipsoidal lead and penetrate the hole, and be provided with the R angle at the front and back end ports that lead penetrates the hole; The external taper of taper clamp is identical with the wire clip body tapering, and the taper clamp can be meshed with the tapered tubular body of wire clip body when lead penetrated, and guarantees that the small end of taper clamp do not protrude the anterior stomidium of the tapered tubular body of wire clip body; Breathe out furan tooth, teeth groove, anti-skidding burr, ring-shaped groove all with the tapered clamp body by integral forming; Annular clamp spring is the ring bodies that a spring tandem array forms, and the diameter of annular clamp spring is slightly less than the width and the degree of depth of ring-shaped groove, and its ring internal diameter is slightly less than the ring internal diameter of ring-shaped groove, and annular clamp spring housing is put in ring-shaped groove; After the taper clamp is nested with annular clamp spring, the small end of the taper clamp afterbody stomidium from wire clip body is inserted, place in the wire clip body; Conical head is a plug shape body, be provided with the bigger circular hole of internal diameter that penetrates the hole than taper clamp center conductor at the center of conical head, the orifice part of the end face of conical head is provided with the R angle, its plug shape body region is tapered, be that tapering is 4-8 ° a outer cone, and can be meshed with the afterbody stomidium of wire clip body, be provided with 1 positioning screw hole at the cone of conical head near the position of end, when conical head is meshed with the afterbody stomidium of wire clip body, two positioning screw holes match, and fix through dog screw; The body clamping plate are circular plate bodys, its centre is provided with the circular hole that slightly is taper that can insert for the tapered tubular body of wire clip body, its internal diameter is smaller than the external diameter of a bigger end of the tapered tubular body of wire clip body, tapering is identical, when inserting, the tubular body of wire clip body can closely be fixed in the body clamping plate, and outside the position that is meshed with the afterbody port of wire clip body of the taper cock body that makes the body clamping plate be in conical head; Be symmetrical arranged two screws in the edge of body clamping plate, the spigot of U-shaped screw rod is plugged in the screw of body clamping plate, and uses fixed by nut.

This invention is owing to be provided with on the taper clamp and breathe out furan tooth, teeth groove, can effectively prevent two taper clamps and occur the situation of dislocation so that the reduction clamping force to lead under the effect that is subjected to wire tension; Increased the length of taper clamp, be provided with anti-skidding burr in the arc groove, arranged outside ring-shaped groove, be nested with annular clamp spring in the ring-shaped groove, and the design at the front and back end ports R angle of arc groove, not only strengthened clamping force, and the setting of annular clamp spring has greatly improved the convenience of installing to lead; The design of the taper cock body of conical head can prevent that not only the taper clamp from deviating from wire clip body, has more effectively carried the grip force that the peripheral Yin Lali of wire clip body tail end is produced from the body clamping plate, has avoided metallographic distortion and damage.This utility model not only clamping force is strong, and cost is lower, simple installation, is applicable to installing and using under the various environment.

Description of drawings

Referring to accompanying drawing, Fig. 1 is a structural representation of the present invention;

View when Fig. 2 is taper clamp of the present invention engagement, A-A view and (I) partial enlarged drawing of anti-skidding burr;

Fig. 3 is a conical head half sectional view of the present invention;

Referring to Fig. 1, mainly comprise: (1) wire clip body, (2) taper clamp, (3) body clamping plate, (4) conical head, (5) dog screw, (6) U-shaped screw rod, (7) annular clamp spring, (7 ') ring-shaped groove (referring to Fig. 2), (8) lead.

Embodiment

Below in conjunction with drawings and the specific embodiments technical characterictic of the present invention is described further.

Referring to Fig. 1, with being fixed on the shaft tower of U-shaped screw rod (6), body clamping plate (3) are nested with in wire clip body (1), then taper clamp (2) being nested with annular clamp spring (7) back inserts in the wire clip body (1), again conical head (4) is plugged in the afterbody stomidium of wire clip body (1), and the screw on conical head (4) cock body and the positioning screw hole of wire clip body (1) afterbody are matched, it is fixing to be spirally connected through hold-down screw; Two bolts of U-shaped screw rod (6) are plugged on respectively be spirally connected by nut in two screws of body clamping plate (3) fixing.Lead (8) is needed a fixing end, the lead that inserts taper clamp (2) from the anterior stomidium of wire clip body (1) penetrates in the hole, owing to be subjected to the roof pressure of lead (8), taper clamp (2) moves to the afterbody of wire clip body (1), promptly end the piston part that moves to conical head (4), because corresponding increase of internal diameter of wire clip body (1), taper clamp (2) is the corresponding increase of external diameter under the roof pressure of lead (8), the lead of its formation penetrates the hole and also increases, make lead (8) penetrate the hole by lead smoothly, simultaneously because the effect of annular clamp spring (7), taper clamp (2) though lead penetrate the hole and increased, but the state of its engagement and corresponding position can not change, and still press to be attached on the lead (8); When lead (8) pass the needs that length satisfies fixed strain the time, the elongated end of tension lead, taper clamp (2) anterior stomidium to wire clip body under the effect of lead (8) moves, because the anterior internal diameter of wire clip body (1) dwindles, taper clamp (2) is formed grip, and the big more tapered clamp body of wire tension is also big more to the clamping force of lead, thereby reaches the effect of the lead that is strained and fixed.

Claims (2)

1. energy-saving automatic strain clamp comprises: wire clip body (1), taper clamp (2), body clamping plate (3), conical head (4), dog screw (5), U-shaped screw rod (6), annular clamp spring (7), ring-shaped groove (7 '); It is characterized in that: described wire clip body (1) is a kind of tapered tubular body, and less stomidium is anterior stomidium, and bigger stomidium is the afterbody stomidium, is provided with 1 positioning screw hole at the position near the afterbody stomidium; Described taper clamp (2) divides two, its shape volume is identical, one side of a bigger end is provided with breathes out the furan tooth, opposite side be provided with can with the corresponding teeth groove of Kazakhstan furan tooth of another piece taper clamp, described two taper clamps (2) form a taper cylinder through breathing out the engagement of furan tooth; Described conical head (4) is a plug shape body, be provided with the bigger circular hole of internal diameter that more described taper clamp (2) center conductor penetrates the hole at the center of conical head, orifice part is provided with the R angle, its plug shape body region is tapered, be that tapering is 4-8 ° a outer cone, and can be meshed with the afterbody stomidium of described wire clip body (1), be provided with 1 positioning screw hole at the cone of described conical head (4) near the position of end, when conical head (4) is meshed with the afterbody stomidium of wire clip body (1), two positioning screw holes match, and fixing through dog screw (5); Described annular clamp spring (7) is the ring bodies that a spring tandem array forms, the diameter of annular clamp spring (7) is slightly less than the width and the degree of depth of ring-shaped groove (7 '), its ring internal diameter is slightly less than the ring internal diameter of described ring-shaped groove (7 '), described annular clamp spring (7) is nested with in ring-shaped groove (7 '), place then in the described wire clip body (1), plugging of described conical head (4) in the afterbody stomidium of described wire clip body (1), fixing through dog screw (5), described body clamping plate (3) are nested with on wire clip body, and be meshed with described wire clip body (1) afterbody, described body clamping plate (3) are placed on the described U-shaped screw rod (6), and through fixed by nut on shaft tower.

2. energy-saving automatic strain clamp according to claim 1, it is characterized in that: described taper clamp (2) divides two, after breathing out the engagement of furan tooth, form a taper cylinder, all along being equipped with ring-shaped groove (7 ') at the taper cylinder near the outside of a bigger end, the inboard of described taper clamp (2) is provided with arc groove, the groove inboard is provided with anti-skidding burr, and the radian of front and back end is identical, after the engagement of two taper clamps, wherein be formed centrally a cross section approximate ellipsoidal lead and penetrate the hole, and be provided with the R angle at the front and back end ports that lead penetrates the hole; The external taper of described taper clamp (2) is identical with described wire clip body (1) tapering, lead (8) when penetrating the taper clamp can be meshed with the tapered tubular body of wire clip body, and guarantee that the small end of taper clamp do not protrude the anterior stomidium of the tapered tubular body of wire clip body; Breathe out furan tooth, teeth groove, anti-skidding burr, ring-shaped groove all with the tapered clamp body by integral forming.

Images