CN203481454U

CN203481454U - Compact type wire connector

Info

Publication number: CN203481454U
Application number: CN201320629825.0U
Authority: CN
Inventors: 朱素央
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-30
Filing date: 2013-09-30
Publication date: 2014-03-12
Anticipated expiration: 2023-09-30

Abstract

The utility model relates to a compact type wire connector, comprising an insulation sleeve and a metal tube. One end of the insulation sleeve forms a horn-shaped guide sleeve; the other end of the insulation sleeve forms a closed blind hole sleeve; the metal tube is disposed in the blind hole sleeve; the outer circumferential surface of the metal tube presents a concave-convex curved surface structure; the inner circumferential surface of the metal tube presents a concave-convex curved surface structure; the inner wall of the insulation tube is provided with a positioning flange radially extending inward; the positioning flange forms limitation to the metal tube; and the outer circumferential surface of the blind hole sleeve is provided with positioning convex ring radially extending outward. By arranging the outer circumferential surface of the metal tube into the concave-convex curved surface structure, a radial expansive action can be formed to the blind hole sleeve when the metal tube is matched into the blind hole sleeve, and thus the assembling structure of the metal tube and the insulation sleeve can be more compact and reliable. Besides, the positioning convex ring disposed on the outer circumferential surface of the blind hole sleeve can be used as a positioning reference for press fit of a wire crimper; and the wire can be pressed at a middle position of the metal tube effectively, with good connectivity.

Description

A kind of compact Wire crimping cap

Technical field

The utility model relates to a kind of wire connector, relates in particular to a kind of compact Wire crimping cap.

Background technology

Wire crimping cap is as a kind of electric armour clamp splicing fast for wire, its application in engineering or on civilian is all very extensive, Wire crimping cap of the prior art generally consists of insulating case and the metal tube being arranged in insulating case, yet, on market, the Wire crimping cap of this kind of structure has following defect: while 1, being socketed in insulating case due to metal tube, only against the power that tightens of insulating case, metal tube is fixed, the fixed structure of this kind of mode is extremely unreliable, especially in the environment that relatively shakes or be dried, be exposed to the sun, metal tube is easy to come off; While 2, carrying out pressing due to staff with Crimping Pliers, with experience, in certain position of insulating case, carry out pressing, be difficult to wire to be fixed on the centre position of metal tube, often cause the splicing effect of wire not satisfactory, affect switching performance.

Summary of the invention

The purpose of this utility model is to overcome the defect of prior art, and a kind of simple in structure, reliable and stable, compact Wire crimping cap that connectivity is good is provided.

For achieving the above object, the utility model adopts a kind of compact Wire crimping cap, comprise insulating case and metal tube, a wherein capitiform flue fairlead of described insulating case, other end forms the blind hole cover of sealing, described metal tube is arranged in described blind hole cover, and the outer circumference surface of described metal tube is concavo-convex curved-surface structure.

Concrete, the inner peripheral surface of described metal tube is concavo-convex curved-surface structure.

Concrete, on the inwall of described blind hole cover, thering is the defining flange extending radially inwardly, this defining flange and described metal tube form spacing.

Concrete, on the periphery wall of described blind hole cover, there is the positioning convex ring extending radially outwardly.

The utility model is by the above-mentioned improvement to prior art, reached the beneficial effect of following four aspects: 1, because the outer circumference surface of metal tube is arranged to concavo-convex curved-surface structure, and this metal tube is coordinated in blind hole cover time, wherein the outer circumference surface of concavo-convex curved-surface structure can form expansion radially to blind hole cover, and then makes the assembly structure of metal tube and insulating case compacter reliable; 2, the inner peripheral surface of metal tube is also arranged to after concavo-convex curved-surface structure, when wire makes it to splice by Crimping Pliers pressing in this metal tube, the inner peripheral surface of metal tube is comparatively concentrated to the radial pressure of wire, therefore can improve the connection reliability of wire in metal tube; 3, on insulated tube inwall, defining flange is set, and and then make this defining flange to metal tube form spacing after, further consolidated the reliability of metal tube and insulating case, the phenomenon of effectively having avoided metal tube to come off from the position of tubaeform fairlead occurs, and makes the Wire crimping cap overall structure of the present utility model more reliable and more stable; 4, by be provided with positioning convex ring on the periphery wall of blind hole cover, positioning datum that can be using this positioning convex ring as Crimping Pliers pressing, is effectively pressed together on wire the centre position of metal tube, and connectivity is good.

Accompanying drawing explanation

Fig. 1 is the front view of the utility model embodiment.

Fig. 2 is the enlarged diagram at A place in Fig. 1.

Embodiment

As Figure 1-Figure 2, specific embodiment of the utility model is a kind of compact Wire crimping cap, comprise insulating case and metal tube 2, a wherein capitiform flue fairlead 10 of described insulating case, other end forms in blind hole cover 11, the Fig. 1 sealing and shows, in the present embodiment, described metal tube 2 is arranged in described blind hole cover 11, and the outer circumference surface of described metal tube 2 and inner peripheral surface are respectively concavo-convex curved-surface structure.

Fig. 1 is also obviously known in conjunction with Fig. 2, in the present embodiment, on the inwall of described blind hole cover 11, has the defining flange 110 extending radially inwardly, and this defining flange 110 forms spacing with described metal tube 2; On the periphery wall of described blind hole cover 11, have the positioning convex ring 112 extending radially outwardly, in the present embodiment, this positioning convex ring 112, as the positioning datum of Crimping Pliers pressing Wire crimping cap, can effectively be pressed together on wire the centre position of metal tube 2, and connectivity is good.

More than show and described basic principle of the present utility model and principal character and advantage.Do not departing under the prerequisite of the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.Claim and equivalent thereof that the claimed scope of the utility model is appended define.

Claims

1. a compact Wire crimping cap, comprise insulating case and metal tube, a wherein capitiform flue fairlead of described insulating case, other end forms the blind hole cover of sealing, described metal tube is arranged in described blind hole cover, it is characterized in that: the outer circumference surface of described metal tube is concavo-convex curved-surface structure.

2. a kind of compact Wire crimping cap according to claim 1, is characterized in that: the inner peripheral surface of described metal tube is concavo-convex curved-surface structure.

3. a kind of compact Wire crimping cap according to claim 2, is characterized in that: on the inwall of described blind hole cover, have the defining flange extending radially inwardly, this defining flange and described metal tube form spacing.

4. a kind of compact Wire crimping cap according to claim 3, is characterized in that: on the periphery wall of described blind hole cover, have the positioning convex ring extending radially outwardly.