CN112838385A

CN112838385A - Cable puncture wire clamp with good stability

Info

Publication number: CN112838385A
Application number: CN201911152113.2A
Authority: CN
Inventors: 丁磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2021-05-25

Abstract

The invention relates to the field of power equipment, and discloses a cable puncture wire clamp with good stability, which comprises a lower clamping tube and an upper clamping tube, wherein the lower clamping tube can separately move relative to the upper clamping tube, notches for flat cables are formed in the front side and the back side of each of the lower clamping tube and the upper clamping tube, two groups of puncture blades respectively positioned below the two notches are arranged at the bottom of an inner cavity of the lower clamping tube, and the number of the puncture blades is two. This cable puncture fastener that steadiness is good, setting through two sets of puncture blades, make the cable puncture in-process, the protection crust of puncture blade smooth broken cable, and contact the cable core gradually, the degree of damage to the cable core is less, and behind puncture blade contact cable core, can make the pressure spring further compress, and can not cut off the cable core, and utilize the elastic potential energy of pressure spring compression as the compensation, make puncture blade and cable core remain the contact throughout, can not separate, thereby the circular telegram stability that cable puncture line connects has been improved.

Description

Cable puncture wire clamp with good stability

Technical Field

The invention relates to the field of power equipment, in particular to a cable piercing connector with good stability.

Background

The insulation puncture wire clamp is a product specially designed for the connection of low-voltage insulation wires (cables), a main wire and a branch wire are connected by puncturing an insulation layer of the cable, the puncture wire clamp is provided with two clamping openings, one is clamped on a main wire cable, the other is clamped on a branch wire cable, and a copper puncture conductor is arranged in the clamping opening. The outer sheath of the multi-core cable needs to be stripped, and the core wires inside are exposed (the insulating layer of the core wires does not need to be stripped). One clamping opening of the puncture clamp is clamped on the main line, and the branch line is threaded into the other clamping opening. And tightening the clamp opening by using a fastening screw, wherein the copper piercing conductor in the clamp opening pierces the insulating layer of the core wire to be contacted with the conductor of the core wire.

However, the existing insulation piercing connector is directly in hard contact with a cable core wire under the action of a fastening screw through a piercing conductor, due to the influence of the external environment, the piercing connector and the cable are prevented from expanding with heat and contracting with cold to different degrees under the action of temperature difference, a stress compensation mechanism is lacked between the cable insulation piercing connector and the cable, and the piercing blade and the metal conductor are in poor contact with each other over time; and the puncture blades are annularly distributed on the outer side of the cable, and the number of the puncture blades is limited, so that the contact section of the insulating puncture wire clamp and the metal conductor is smaller, and the current-carrying capacity is smaller.

Disclosure of Invention

The invention provides a cable puncture wire clamp with good stability, which has the advantages that a puncture blade and a cable core are always kept in a better contact state, and the damage degree of the puncture blade to the cable core is lower, so that the technical problems in the background art are solved.

The invention provides the following technical scheme: a cable puncture wire clamp with good stability comprises a lower clamping tube and an upper clamping tube, wherein the lower clamping tube can move in a separation manner relative to the upper clamping tube, notches for a flat cable are formed in the front side and the back side of the lower clamping tube and the upper clamping tube, two groups of puncture blades respectively positioned below the two notches are arranged at the bottom of the inner cavity of the lower clamping tube, one group of the puncture blades are two, positioning shafts are movably sleeved at the top ends of the two puncture blades, the positioning shafts are fixedly arranged at the top of the inner cavity of the lower clamping tube, conductive sheets positioned at the positioning shafts are fixedly connected onto the puncture blades, the conductive sheets between the two groups of the puncture blades are electrically connected, a pressure spring is fixedly connected between one end of each puncture blade far away from the positioning shafts and the side wall of the inner cavity of the lower clamping tube, and a limiting rod positioned right above the two puncture blades is sleeved on the top thread of, and the length of the limiting rod is greater than the height values of the lower clamping pipe and the upper clamping pipe, and a pressing block positioned in the inner cavity of the lower clamping pipe is arranged at the bottom end of the limiting rod.

Preferably, the both sides of lower double-layered pipe and upper double-layered pipe are equipped with elastic connection subassembly, and elastic connection subassembly is including fixing the location axle on lower double-layered pipe and fixing the registration arm on upper double-layered pipe, and the location axle extends to in the upper double-layered pipe and the cover is equipped with the spring.

Preferably, the two sides of the notch are respectively provided with a sealing gasket, the center of the notch and the center of the limiting rod are positioned on the same straight line, and the center lines of the group of puncture blades relative to the limiting rod are symmetrical.

Preferably, the diameter value of the bottom of the pressing block is larger than the conventional distance value between the bottom ends of the two puncture blades, and the top of the pressing block is movably sleeved with the bottom end of the limiting rod.

The invention has the following beneficial effects:

according to the cable puncture wire clamp with good stability, the two groups of puncture blades are arranged, so that in the process of cable puncture, the puncture blades slide through the protective outer skin of a cable and gradually contact with a cable core, the damage degree to the cable core is small, the compression spring can be further compressed after the puncture blades contact with the cable core, the cable core cannot be cut off, and the puncture blades and the cable core are always kept in contact and cannot be separated by utilizing the elastic potential energy compressed by the compression spring as compensation, so that the electrifying stability of cable puncture wire connection is improved; because the puncture blade and the cable are kept to be straight lines, under the condition that the cutting edge of the puncture blade cuts into the cable core with the same depth, the contact section of the puncture blade and the cable core is larger, the current-carrying capacity is smaller, and meanwhile, the risk that the cable core is cut into a notch by the cutting edge of the puncture blade in the vertical direction to cause the cable core to be easily disconnected is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a side view of FIG. 1 of the present invention;

fig. 4 is a schematic view of a structural elastic connecting component of the present invention.

In the figure: 1. a lower clamping pipe; 2. an upper clamping pipe; 3. an elastic connection assembly; 4. a piercing blade; 5. positioning the shaft; 6. a pressure spring; 7. a limiting rod; 8. and (7) briquetting.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-4, a cable puncture wire clamp with good stability, comprising a lower clamping tube 1, an upper clamping tube 2 is arranged on the top of the lower clamping tube 1, the lower clamping tube 1 is movably sleeved with the two sides of the upper clamping tube 2 through an elastic connection assembly 3, the elastic connection assembly 3 comprises a positioning shaft fixed on the lower clamping tube 1 and a positioning tube fixed on the upper clamping tube 2, the positioning shaft extends into the upper clamping tube 2 and is sleeved with a spring, under the elastic force of the spring, the upper clamping tube 2 is tightly attached to the elastic connection assembly 3, notches for placing cables are arranged on the upper clamping tube 2 and one side of the front and back of the elastic connection assembly 3, the cables can be horizontally placed in the notches between the clamping tube 1 and the upper clamping tube 2 by separating the lower clamping tube 1 and the upper clamping tube 2, sealing pads are arranged on the two sides of the notches, so as to prevent water penetration, two groups of puncture knives respectively arranged on the two sides of the inner cavity of the lower clamping tube 1 are arranged under the two The number of the puncture blades 4 is two, the top ends of the two puncture blades 4 are movably sleeved with a positioning shaft 5 arranged at the top of the inner cavity of the lower clamping tube 1, the puncture blades 4 are fixedly connected with conducting strips positioned at the positioning shaft 5, the conducting strips between the two groups of puncture blades 4 are electrically connected to ensure that the two groups of puncture blades 4 are kept in a power-on state after being contacted with the cable core of the cable, a pressure spring 6 is fixedly connected between one end of each puncture blade 4 far away from the positioning shaft 5 and the side wall of the inner cavity of the lower clamping tube 1, the elasticity of the pressure spring 6 is smaller than the elasticity value of a spring in the elastic connecting component 3, a limiting rod 7 positioned right above the two puncture blades 4 is sleeved on the top end of the upper clamping tube 2 in a threaded manner, the length of the limiting rod 7 is larger than the height values of the lower clamping tube 1 and the upper clamping tube 2, the center of a notch and the center of the limiting rod 7 are positioned on the same straight, the bottom end of the limiting rod 7 is provided with a pressing block 8 positioned in the inner cavity of the lower clamping tube 1, the diameter value of the bottom of the pressing block 8 is larger than the conventional distance value of the bottom ends of the two puncture blades 4, the pressing block 8 is movably sleeved with the limiting rod 7, so that the pressing block 8 does not rotate along with the limiting rod 7, the pressing block 8 at the lower end of the limiting rod 7 drives the cable positioned between the lower clamping tube 1 and the upper clamping tube 2 to move downwards, along with the downward movement, the extrusion force of the pressing block 8 and the puncture blades 4 on the cable is increased, the puncture blades 4 slide through the protective sheath of the cable and gradually contact the protective sheath, in the process, the cutting edge of the puncture blades 4 always keeps the same straight line state with the cable core to slide and cut the protective sheath of the cable, the cable core is made of metal products, and after the protective sheath of the cable slides through, the puncture blades 4 contact the cable core, the pressure, and the elastic potential energy compressed by the pressure spring 6 is used as compensation, so that the puncture blade 4 is always kept in contact with the cable core and cannot be separated, the electrifying stability of the cable puncture line connection is improved, in addition, as the puncture blade 4 and the cable are kept in a straight line, under the condition that the cutting edge of the puncture blade 4 cuts into the cable core at the same depth, the contact section of the puncture blade and the cable core is larger, the current-carrying capacity is smaller, and meanwhile, the risk that the cable core is easily broken because the cable core is cut into a notch by the cutting edge of the puncture blade 4 in the vertical direction is avoided.

When the cable puncture clamp is used, the lower clamping tube 1 and the upper clamping tube 2 are separated, one side of the cable puncture clamp is directly sleeved on a position, needing to be plugged, of a cable, the other side groove of the lower clamping tube 1 and the other side groove of the upper clamping tube 2 are placed on the cable needing to be plugged, conducting strips are connected between the two groups of puncture blades 4 on two sides, the lower clamping tube 1 and the upper clamping tube 2 are tightly clamped and fixed on the cable under the elastic action of springs, the limiting rod 7 at the top of the lower clamping tube 1 is screwed, and the pressing block 8 is matched with the puncture blades 4 to clamp the cable.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cable puncture fastener that steadiness is good, includes lower double-layered pipe (1) and upper double-layered pipe (2), its characterized in that: the lower clamping tube (1) can move separately from the upper clamping tube (2), notches for placing cables are formed in the front surface and the back surface of the lower clamping tube (1) and the upper clamping tube (2), two groups of puncture blades (4) which are respectively positioned below the two notches are arranged at the bottom of the inner cavity of the lower clamping tube (1), the number of the puncture blades (4) is two, a positioning shaft (5) is movably sleeved at the top end of each puncture blade (4), the positioning shaft (5) is fixedly arranged at the top of the inner cavity of the lower clamping tube (1), conductive sheets positioned at the positioning shaft (5) are fixedly connected to the puncture blades (4), the conductive sheets between the two groups of puncture blades (4) are electrically connected, and a pressure spring (6) is fixedly connected between one end, away from the positioning shaft (5), of each puncture blade (4) and the side wall of the inner cavity of the lower clamping tube (1), the top thread of going up clamp tube (2) is cup jointed and is located gag lever post (7) directly over two puncture blades (4), and the length of gag lever post (7) is greater than the value of height of lower clamp tube (1) and upper clamp tube (2), the bottom of gag lever post (7) is equipped with briquetting (8) that are located lower clamp tube (1) inner chamber.

2. The cable piercing connector that steadiness is good of claim 1, its characterized in that: the both sides of lower double-layered pipe (1) and upper double-layered pipe (2) are equipped with elasticity coupling assembling (3), and elasticity coupling assembling (3) are including fixing the location axle on lower double-layered pipe (1) and fixing the location pipe on upper double-layered pipe (2), and the location axle extends to and is equipped with the spring in upper double-layered pipe (2) and overlaps.

3. The cable piercing connector that steadiness is good of claim 1, its characterized in that: sealing gaskets are arranged on two sides of the notch, the center of the notch and the center of the limiting rod (7) are located on the same straight line, and the center lines of the group of puncture blades (4) relative to the limiting rod (7) are symmetrical.

4. The cable piercing connector that steadiness is good of claim 1, its characterized in that: the diameter value of the bottom of the pressing block (8) is larger than the conventional distance value between the bottom ends of the two puncture blades (4), and the top of the pressing block (8) is movably sleeved with the bottom end of the limiting rod (7).