CN210863811U

CN210863811U - Experimental wiring extender

Info

Publication number: CN210863811U
Application number: CN201921381894.8U
Authority: CN
Inventors: 林伟茂; 黄绍斌; 陈佩仪; 唐汶杰
Original assignee: Guangdong Power Grid Co Ltd; Shantou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Shantou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-06-26
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a test wiring extender, which comprises an insulating shell, wherein the inside of the insulating shell is of a hollow structure, and the inner wall of the insulating shell is provided with a metal connecting sheet; a first socket for inserting a contact pin of a switch handcart and a second socket for inserting a test wire of a test instrument are respectively arranged at two ends of the insulating shell, and the first socket and the second socket are respectively communicated with the hollow structure of the insulating shell; the metal connecting piece is also connected with a metal flat bar, and the metal flat bar extends out of the insulating shell and is positioned at the same end of the insulating shell with the second socket. According to the test wiring extender provided by the embodiment of the utility model, the insulating shell can prevent the adjacent equipment from being touched by mistake or the person from getting an electric shock; the second socket facilitates the insertion of standard test pins (pin type test clips), the metal flat strip facilitates the clamping of non-pin type test clips, the wiring mode of all test instruments is met, the connection can be stable without falling off, and the working efficiency and the safety level are improved.

Description

Experimental wiring extender

Technical Field

The utility model belongs to the technical field of experimental wiring, especially, relate to an experimental wiring extender.

Background

The transformer substation and the switch station are provided with a large number of switch handcarts, and the action characteristic test of the switch is used as an important test for detecting the closing and opening performances of the switch, such as the opening and closing speed, the opening and closing time, the opening and closing different-phase degree and the like of the switch; meanwhile, the daily maintenance work such as checking the switch opening and closing auxiliary contacts in the switch trolley, the contact states of various auxiliary switches such as the auxiliary contacts at the working position and the testing position of the handcart, the non-energy-storage contact of a spring and the like needs to be measured by using an instrument.

The measurement is that the contact pin that uses experimental binding clip to press from both sides and test on the corresponding contact pin of aviation plug, because aviation plug contact pin range is intensive, and the contact pin is the smooth cylindrical metal material in surface, and experimental fastener stress point and area of contact are limited, lead to easily that the clamp does not live to press from both sides tightly or drop, can miss and bump adjacent contact pin to lead to equipment damage, influence measuring result to a certain extent, also have more serious potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an experimental wiring extender changes the mode that directly uses the experimental fastener to carry the contact pin in the past, through experimental wiring extender, makes contact pin and experimental wiring connect well, avoids the test line to lead to coming off because of pressing from both sides not living or pressing from both sides not tightly.

To achieve the purpose, the utility model adopts the following technical proposal:

a test wiring extender comprises an insulating shell, wherein the inside of the insulating shell is of a hollow structure, and the inner wall of the insulating shell is covered with a metal connecting sheet;

a first socket for inserting a contact pin of a switch handcart and a second socket for inserting a test wire of a test instrument are respectively arranged at two ends of the insulating shell, and the first socket and the second socket are respectively communicated with the hollow structure of the insulating shell;

the metal connecting piece is also connected with a metal flat bar, the metal flat bar extends out of the insulating shell and is positioned at the same end of the insulating shell with the second socket;

the flat metal strip is used for being clamped by a non-contact type test clamp, and the second socket is used for being inserted into a contact type test clamp.

As an optional technical solution of the present invention, the hollow structure includes a first cavity and a second cavity, the first cavity is communicated with the second cavity, the first socket is communicated with the first cavity, and the second socket is communicated with the second cavity;

and the side wall of the first cavity is convexly provided with an elastic metal fastener.

As an optional technical scheme of the utility model, the length of first cavity is 25mm, and the diameter is 3 mm.

As an optional technical scheme of the utility model, metal even piece, metal ribbon and elastic metal fastener are copper.

As an optional technical solution of the present invention, the first socket and the second socket are circular.

Compared with the prior art, the embodiment of the utility model provides a following beneficial effect has:

according to the test wiring extender provided by the embodiment of the utility model, the insulating shell can prevent the adjacent equipment from being touched by mistake or the person from getting an electric shock; the second socket facilitates the insertion of standard test pins (pin type test clips), the metal flat strip facilitates the clamping of non-pin type test clips, the wiring mode of all test instruments is met, the connection can be stable without falling off, and the working efficiency and the safety level are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the range which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a cross-sectional view of an experimental wiring extender provided in an embodiment of the present invention.

Fig. 2 is a left side view of an experimental wiring extender provided by an embodiment of the present invention.

Fig. 3 is a right side view of a test wire extender provided by an embodiment of the present invention.

Illustration of the drawings:

the air conditioner comprises an insulating shell 10, a hollow structure 11, a metal connecting piece 12, a first socket 13, a second socket 14, a metal flat bar 15, a first cavity 16, a second air conditioner 17 and an elastic metal fastener 18.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1 to 3.

This embodiment provides a test wiring extender, can be convenient with contact pin and the test wiring connection on the high voltage switch handcart aviation plug, avoid the test fastener to press from both sides not to live or press from both sides not tightly and drop.

Specifically, the test wiring extender comprises an insulating shell 10, the inside of the insulating shell 10 is a hollow structure 11, and the inner wall of the insulating shell 10 is provided with a metal connecting sheet 12.

Thus, the extender connects the pins to the test leads through the metal lug 12 when in use.

Specifically, the stretcher structure is as follows: the two ends of the insulating shell 10 are respectively provided with a first socket 13 used for inserting a contact pin of a switch handcart and a second socket 14 used for inserting a test wire of a test instrument, and the first socket 13 and the second socket 14 are respectively communicated with the hollow structure 11 of the insulating shell 10.

In this embodiment, the first and

second sockets

13, 14 are circular. Therefore, the pin is inserted into the first insertion opening 13 and brought into close contact with the metal lug 12, and when the test connection is of the pin type, the pin is inserted into the second insertion opening 14 and brought into close contact with the metal lug 12. Compared with the traditional mode, the connection mode has the advantages that the contact area of the connection position is larger, and the connection position is not easy to fall off.

Further, the metal connecting piece 12 is further connected with a flat metal strip 15, and the flat metal strip 15 extends out of the insulating housing 10 and is located at the same end of the insulating housing 10 as the second socket 14. When the test connection is a non-contact type, the flat metal strip 15 is clamped by a wire clamp on the test connection. Compared with the traditional clamp on a contact pin, the metal flat strip 15 is in a strip shape, when the wire clamp is used for clamping, the contact area is relatively larger, and the clamping part is a plane instead of an arc surface, so that the connection is firmer.

The hollow structure 11 is substantially cylindrical. Specifically, the hollow structure 11 includes a first cavity 16 and a second cavity 17, the first cavity 16 is communicated with the second cavity 17, the first socket 13 is communicated with the first cavity 16, and the second socket 14 is communicated with the second cavity 17.

The side walls of the first cavity 16 are convexly provided with resilient metal fasteners 18.

Thus, when inserted into the first cavity 16, the pin may be tightly gripped by the resilient metal fastener 18.

The aviation plug contact pin on the standard handcart is about 22-24 mm in length usually, and the contact pin diameter is about 2.5-2.8 mm. In this embodiment, the first cavity 16 has a length of 25mm and a diameter of 3 mm.

In the above embodiment, the metal connecting piece 12, the metal flat bar 15 and the elastic metal fastening member 18 are made of copper.

In summary, according to the test wiring extender provided by the embodiment of the present invention, the insulating housing 10 can prevent the adjacent devices from being touched by mistake or the person from getting an electric shock; the second socket 14 facilitates the insertion of a standard test pin (a pin type test clip), and the metal flat bar 15 facilitates the clamping of a non-pin type test clip, so that the wiring mode of all test instruments is met, the connection can be stable without falling off, and the working efficiency and the safety level are improved.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are intended to be inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed and illustrated, unless explicitly indicated as an order of performance. It should also be understood that additional or alternative steps may be employed.

When an element or layer is referred to as being "on" … … "," engaged with "… …", "connected to" or "coupled to" another element or layer, it can be directly on, engaged with, connected to or coupled to the other element or layer, or intervening elements or layers may also be present. In contrast, when an element or layer is referred to as being "directly on … …," "directly engaged with … …," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship of elements should be interpreted in a similar manner (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region or section from another element, component, region or section. Unless clearly indicated by the context, use of terms such as the terms "first," "second," and other numerical values herein does not imply a sequence or order. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

Spatially relative terms, such as "inner," "outer," "below," "… …," "lower," "above," "upper," and the like, may be used herein for ease of description to describe a relationship between one element or feature and one or more other elements or features as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below … …" can encompass both an orientation of facing upward and downward. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A test wiring extender is characterized by comprising an insulating shell, wherein the inside of the insulating shell is of a hollow structure, and a metal connecting piece is arranged on the inner wall of the insulating shell;

2. A test wire extender in accordance with claim 1 wherein said hollow structure comprises a first cavity and a second cavity, said first cavity and said second cavity being in communication, said first socket being in communication with said first cavity and said second socket being in communication with said second cavity;

3. A test wire extender in accordance with claim 2 wherein the first cavity is 25mm in length and 3mm in diameter.

4. A test wire extender in accordance with claim 2 wherein said metal tabs, metal straps and resilient metal fasteners are copper.

5. A test wire extender in accordance with claim 2 wherein said first and second sockets are circular.