CN202256043U

CN202256043U - Clamp used for cable tensile test

Info

Publication number: CN202256043U
Application number: CN2011203721259U
Authority: CN
Inventors: 文小中
Original assignee: SUZHOU ULUX INSTRUMENT CO Ltd
Current assignee: SUZHOU ULUX INSTRUMENT CO Ltd
Priority date: 2011-09-28
Filing date: 2011-09-28
Publication date: 2012-05-30
Anticipated expiration: 2021-09-28

Abstract

The utility model discloses a clamp used for a cable tensile test, which is composed of two clamping arms, a spring and a pin roll movably connecting the two clamping arms. Each clamping arm comprises a handle and a clamping opening with a tooth arranged in the middle, and the spring is arranged between the pin roll and the clamping opening. The tooth of the clamping opening is semiellipse-shaped. When two handles are closed, the two clamping openings opens for a certain angle by rotating around the pin roll, so that a cable to be tested can be placed in the clamping opening between two semiellipse-shaped teeth. When the handles are loosened, the clamping openings return to the original plate to clamp the cable to be measured under the effect of the spring. The clamp is simple in structure, reasonable in design and capable of clamping the cable to be measured without damaging the cable.

Description

A kind of anchor clamps that are used for the cable tensile test

Technical field

The utility model relates to the cable detection apparatus field, is specifically related to a kind of anchor clamps that are used for the cable tensile test.

Background technology

Closely at the electric wire production industry; Because the singularity that electric wire is used; Must guarantee that the interior external insulation layer of cable and sheath can resist certain tension; External insulation layer damages with sheath in when preventing to receive certain pulling force in installing and laying or in using, and in use leaks electricity thereby cause working as electric wire, causes dangerous consequence.Therefore, after electric wire is produced, all to carry out the tensile strength expansion test, with National standard.

When cable is carried out the tensile strength expansion test; Be to adopt anchor clamps to step up to make an experiment at one section sample cable two ends, cable tensile test anchor clamps now all are as shown in Figure 1 mostly, by two jig arm 10, spring 20 and bearing pin 30 that two jig arm are flexibly connected; Said jig arm comprises handgrip 11 and the middle dop 13 that is provided with teeth 12; Teeth 12 clampings through putting into cable two dops 13 are tested, though so also can cable be stepped up, because teeth 12 are more sharp-pointed; Be easy to cable is crushed, thereby cause unnecessary waste.

The utility model content

For solving the problems of the technologies described above, we proposed a kind of reasonable in design, can cable under test be clamped again not the cable tensile test anchor clamps that can cable be crushed.

For achieving the above object, the technical scheme of the utility model is following:

A kind of anchor clamps that are used for the cable tensile test are formed by two jig arm, spring with the bearing pin that two said jig arm flexibly connect, and said jig arm comprises handgrip and the middle dop that is provided with teeth, said spring install and said bearing pin and said dop between; The teeth of said dop are the semiellipse type, and said two dops were around said bearing pin rotation opened with certain angle when said two holds were held together.

Preferably, encapsulation has plastic casing on the said handgrip.

Pass through technique scheme; The utility model is designed to the semiellipse type through the teeth with said dop; Will then cable under test be put between the dop of two semiellipse type teeth release handle around bearing pin rotation opened with certain angle at said two handgrips two dops when the centre holds; Under the effect of spring, the dop return clamps cable under test; Thereby reached simple in structure, reasonable in design and can cable under test have been clamped again not the purpose that can cable be crushed.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of cable tensile test anchor clamps in the prior art;

Fig. 2 is the disclosed a kind of structural representation that is used for the anchor clamps of cable tensile test of the utility model embodiment;

Structural representation when Fig. 3 works for the disclosed a kind of anchor clamps that are used for the cable tensile test of the utility model embodiment.

The numeral corresponding component title represented among the figure with letter:

10. jig arm 11. handgrips 12. teeth 13. dops

20. spring 30. bearing pins 4. plastic casings 5. cables

Embodiment

To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

The utility model provides a kind of anchor clamps that are used for the cable tensile test; Its principle of work is to be designed to the semiellipse type through the teeth with said dop; Will then cable under test be put between the dop of two semiellipse type teeth release handle around bearing pin rotation opened with certain angle at said two handgrips two dops when the centre holds; Under the effect of spring, the dop return clamps cable under test.

Below in conjunction with embodiment and embodiment the utility model is done further detailed explanation.

Embodiment.

As shown in Figure 2; A kind of anchor clamps that are used for the cable tensile test; Form by two jig arm 10, spring 20 with the bearing pin 30 that two jig arm 10 flexibly connect; Said jig arm 10 comprises handgrip 11 and the middle dop 13 that is provided with teeth 12, between said spring 20 installings and said bearing pin 30 and the said dop 13; The teeth 12 of said dop 13 are the semiellipse type, and said two dops 13 were around said bearing pin 30 rotation opened with certain angle when said two handgrips 11 were held.Wherein, encapsulation has plastic casing 4 on the said handgrip 11.

A kind of clamping principle and clamping process that is used for the anchor clamps of cable tensile test of the utility model is: as shown in Figure 2; At first with two handgrips 11 toward holding together, said two dops 13 will be around said bearing pin 30 rotation opened with certain angle, and are as shown in Figure 3; Then cable under test 5 is put between the dop 13 that is provided with two semiellipse type teeth 12; Unclamp handgrip 11, under the effect of spring 20, dop 13 returns clamp cable under test 5; Because the teeth 12 of said dop 13 are designed to the semiellipse type, therefore, dop 13 can clamp cable under test 5 and can cable 5 do not crushed again.In addition, handle 11 grips for ease, and encapsulation has plastic casing 4 on said handgrip 11.

Pass through technique scheme; The utility model is designed to the semiellipse type through the teeth 12 with said dop 13; Two dops 13 will be around bearing pin 30 rotation opened with certain angle when the centre holds at said two handgrips 11, then cable under test 5 are put between two dops 13 that are provided with semiellipse type teeth 12, unclamp handgrip 11; Under the effect of spring 20, dop 13 returns clamp cable under test 5; Thereby reached simple in structure, reasonable in design and can cable under test 5 have been clamped again not the purpose that can cable 5 be crushed.

To disclosed a kind of above-mentioned explanation that is used for the folder embodiment of cable tensile test, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims

1. anchor clamps that are used for the cable tensile test are formed by two jig arm, spring with the bearing pin that two said jig arm flexibly connect, and said jig arm comprises handgrip and the middle dop that is provided with teeth, said spring install and said bearing pin and said dop between; It is characterized in that the teeth of said dop are the semiellipse type; Said two dops were around said bearing pin rotation opened with certain angle when said two holds were held together.

2. a kind of anchor clamps that are used for the cable tensile test according to claim 1 is characterized in that encapsulation has plastic casing on the said handgrip.