CN202309009U

CN202309009U - Connecting pipe of waney cable

Info

Publication number: CN202309009U
Application number: CN2011204426861U
Authority: CN
Inventors: 白齐豫
Original assignee: HANGZHOU XIGER ELECTRICITY CO Ltd
Current assignee: HANGZHOU XIGER ELECTRICITY CO Ltd
Priority date: 2011-11-10
Filing date: 2011-11-10
Publication date: 2012-07-04
Anticipated expiration: 2021-11-10

Abstract

The utility model relates to a connecting pipe of waney cables. The utility model aims to solve a technical problem in the prior art and the provided connecting pipe can realize connection of the waney cables effectively. The connecting pipe of the waney cable in the utility model has characteristics of good connection quality and high practical applicability and reliability. The technical scheme is that the connecting pipe of the waney cables includes a tubular body. It is characterized in that a through hole in the tubular body is a stepped hole having various diameters. The appearance of the tubular body shows as two circumferential faces having different diameters and corresponding to the stepped hole. The two circumferential faces having different diameters are connected through a circular conical face for transition.

Description

The tube connector of isometrical cable not

Technical field

The utility model relates to a kind of cable fitting, the tube connector between the especially not isometrical cable.

Background technology

In the power circuit improvement project, often have being connected of copper core cable and aluminium cable; Because two kinds of cables are cross section different (aluminium core cross section is big, and copper core cross section is little) often, and the cross section gap is bigger; Also having simultaneously not, the middle of isometrical copper core cable connects (like 240 mm ²With 50 mm ²Copper core cable connects).On the type selecting of transition joint, should consider that the elasticity that satisfies small bore holds power tightly, consider heavy in section magnitude of interference again, to shrink and hold that on the main insulation of two ends, also will to guarantee to overlap size even tightly, side-play amount can not be too big.Existing tube connector (shown in Figure 3) is through hole, and simultaneously the tube connector external diameter does not have tangible size variation yet, and this is to be the cable of two unified sizes because the cable mounting process is primarily aimed at.And the copper connecting tube of Cu-Al connecting pipe or different cross section, the profile size has significant change; (effectively pressure contact portion is divided into two ends) is so existing tube connector can not satisfy instructions for use.

Summary of the invention

The utility model technical problem to be solved is the deficiency that overcomes above-mentioned background technology, and a kind of improvement of tube connector of cable is provided, and the tube connector of this cable should be able to effectively be realized the connection between the not isometrical cable, has that quality of connection is good, the practical and reliable characteristics.

The technical scheme that the utility model provides is: the tube connector of isometrical cable not comprises tubular body; It is characterized in that the through hole in this tubular body is the different shoulder hole of diameter, the profile of tubular body is the periphery with corresponding two different-diameters of shoulder hole.

Connect transition by a taper seat between the periphery of said two different-diameters.

The beneficial effect of the utility model is: owing to adopted tube connector with shoulder hole structure, and can make the tube connector of different shoulder holes to the cable of existing all size, and form series of products; Thereby can satisfy effective mounting process the elasticity of the two ends cross-section of cable is held tightly power, guaranteed the even of two end cable main insulations overlap joint size, thereby significantly improved the quality of connection of cable intermediate joint to have not only practicality but also reliable characteristics.

Description of drawings

Fig. 1 is the main TV structure sketch map of the utility model.

Fig. 2 is the left TV structure sketch map of the utility model.

Fig. 3 is the main TV structure sketch map of existing tube connector.

Fig. 4 is that the shoulder hole manufactured size calculates sketch map.

Embodiment

As shown in the figure, the tube connector of isometrical cable is not shaped on through hole on its tubular body 1;

The utility model changes the through hole in this tubular body into the different shoulder hole of diameter 2 (visible among Fig. 1 is shoulder hole left large and right small); The profile of tubular body also is that the face of cylinder of two different-diameters joins, the diameter on the face of cylinder corresponding with shoulder hole (face of cylinder diameter also corresponding process left large and right small).

Connect transition by a taper seat between the periphery of said two different-diameters.The angle R of this taper seat confirms as required, can be set in the 30-90 degree usually; Recommending angle R is 60 degree.

The making of shoulder hole can be confirmed according to following formula:

If it (is that L1 is the A size in the conventional mounting process, as when changing copper aluminium into and connecting, then: A=L1-L/2+C, B=L1-L/2+D that normal stripping is of a size of A=B=L1;

Wherein: L is a tube connector length; D, C are respectively the length of big aperture, open core (left core 10-1, and the right core 10-2) equal in length (like Fig. 1, shown in Figure 4) after the stripping with two ends; A, B are respectively core and main insulating layer (left main insulating layer 20-1, and the right main insulating layer 20-2) equal in length after stripping is opened at two ends.

Also have among the figure: left semi-conductive layer 30-1, right semi-conductive layer 30-2.

All the other press the common process production and installation, and this formula is applicable to that simultaneously copper core cable connects in the middle of striding the cross section.

Claims

1. the tube connector of isometrical cable not comprises tubular body (1); It is characterized in that the through hole in this tubular body is the different shoulder hole of diameter, the profile of tubular body is the periphery with corresponding two different-diameters of shoulder hole.

2. the tube connector of not isometrical cable according to claim 1 is characterized in that: connect transition by a taper seat (3) between the periphery of said two different-diameters.