CN2410792Y

CN2410792Y - Universal wire stretching device

Info

Publication number: CN2410792Y
Application number: CN 00213210
Authority: CN
Inventors: 于兴利
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-15
Filing date: 2000-01-15
Publication date: 2000-12-13
Anticipated expiration: 2010-01-15

Abstract

The utility model relates to a universal wire stretching device, comprising a body and a press plate, and the stretching surfaces of the body and/or the press plate are two planes forming an acute angle. When the universal wire stretching device stretches conducting wires, such as electric wires or cables, etc., at least three points of the conducting wires and a wire stretching port are contacted so that a contacting area is enlarged, when the body and the press plate adopt the design, at least four points of the conducting wires and the wire stretching port can be contacted so that the contacting area is larger, and meanwhile, each pressure can also generate a force moment. Frictional force generated under the action of the same stretching force is enlarged at least 50 percents more than the original frictional force, and the utility model can more firmly stretch the conducting wires.

Description

General fixing-line device

The utility model belongs to field of tool, is used to the instrument of card line during the backguy that is specifically related to electric wire is installed.

Before the utility model is made, the main body of existing fixing-line device and the shape of cross section of pressing plate as shown in Figure 1, the working face of main body and pressing plate all is the semicircle of indent, forms whole circle when they clamp.Design is because the cross section of electric wire all is circular usually like this, electric wire or cable are put between main body and the pressing plate, the semi-circular recesses of indent can be embraced electric wire or cable when main body and pressing plate clamped electric wire or cable under the effect of the tight power of song, form more contact-making surface and produce more frictional force, thereby clamp electric wire or cable.But things turn out contrary to one's wishes; because the circular groove diameter of a circle of the indent that main body and pressing plate set in advance can not adapt to the electric wire or the cable of all sizes; so occur as shown in Figure 1 through regular meeting; electric wire or cable and main body and pressing plate all are that the line that is similar to contacts is so-called 2 contacts; contact area is little; need bigger clamping force could clamp electric wire, if clamping force has deficiency the phenomenon that lead skids at wire blocking port will occur slightly.

The purpose of this utility model is, provides a kind of and contacts highly versatile, general fixing-line device simple in structure at least with 3 in leads such as electric wire or cable for addressing the above problem.

Be achieved in that a kind of general fixing-line device for addressing the above problem the utility model, comprise main body and pressing plate, the clamping area of described main body and/or pressing plate is two planes of acute angle each other; Described acute angle is 15 °～90 °.

One of the clamping area of aforementioned body and pressing plate is arranged to two planes of acute angle each other, is arranged to a plane for one.

Above-mentioned two clamping areas of acute angle each other, angulation is 60 °.

Above-mentioned two each other the junction of the clamping area of acute angle fillet is set.

Advantage of the present utility model and good effect are that when leads such as this general fixing-line device clamping electric wire or cable, lead contacts with 3 of wire blocking ports at least, has increased contact area; If main body all adopts this design can form at 4 with clamping plate and contacts, contact area is bigger; Each pressure also can produce a moment simultaneously; The frictional force that produces under the effect of identical clamping force increased 50% at least than originally, so firm grip lead more.Employing of the clamping area of main body and pressing plate is two planes of angle mutually.A design of adopting a plane, structure is simpler, so to be that angle acts on the frictional force that three identical each contact points of pressure on the contact point are produced when being 60 ° identical when the acute angle that is become, the whole frictional force maximum that produces, clamping wire is more firm.

Below in conjunction with accompanying drawing the utility model is described in further details.

Fig. 1 is the structural representation of fixing-line device card line before the utility model is made;

Fig. 2 is the front view of an embodiment of the utility model;

Fig. 3 is the upward view of an embodiment of the utility model;

Fig. 4 is the A-A cutaway view of Fig. 2;

Structural representation when Fig. 5 is Fig. 4 clamping wire.

As Fig. 2, Fig. 3, shown in Figure 4, a kind of general fixing-line device comprises draw ring 1, arm-tie 2, main body 3, pressing plate 4, connecting lever 7, and wherein the clamping area 5 of main body 3 is two planes of acute angle each other; The clamping area 5 of pressing plate can identically with main body also can be a plane.With two of the main body clamping areas 5 of acute angle each other, angle be arranged to 60 ° and can better increase frictional force; And the junction of these two clamping areas is provided with fillet 6.Same main body 3 and being provided with of the clamping area of pressing plate 4 can be exchanged.

During use, lead is put into the groove that the main body clamping area forms, pulling draw ring arm-tie and connecting lever motion press down, and clamp lead, and lead and fixing-line device produce frictional force, and lead is just blocked clamping by fixing-line device when frictional force is enough big.

Claims

1. a general fixing-line device comprises main body (3), pressing plate (4), it is characterized in that: the clamping area (5) of described main body (3) and/or pressing plate (4) is two planes of acute angle each other; Described acute angle is 15 °～90 °.

2. general fixing-line device according to claim 1 is characterized in that: one of the clamping area of aforementioned body (3) and pressing plate (4) is arranged to two planes of acute angle each other, is arranged to a plane for one.

3. general fixing-line device according to claim 1 and 2 is characterized in that: above-mentioned two clamping areas of acute angle (5) each other, angulation is 60 °.

4. general fixing-line device according to claim 3 is characterized in that: above-mentioned two each other the junction of the clamping area of acute angle (5) fillet (6) is set.