CN203232137U - Multi-purpose adapter terminal for switch mechanical performance testing - Google Patents

Abstract

The utility model relates to a multipurpose conversion terminal applied to a switch mechanical performance test. The multipurpose conversion terminal comprises a conductive inner wall, spring sheets and an insulating casing. An opening is arranged on the conductive inner wall. Four spring sheets are symmetrically arranged in the conductive inner wall. The four spring sheets support each other and a wire installation opening is arranged at the lower end part of the conductive inner wall. The insulating casing is coaxially sheathed outside the conductive inner wall. An opening is arranged on the insulating casing and an opening is arranged on the bottom end, thus the wire installation opening of the conductive inner wall is exposed. According to the utility model, the wire installation opening is designed to be closed up, which is convenient for connection wire installation; a connection wire is connected with a conventional test wiring terminal, which ensures wiring flexibility; and when a switch mechanical characteristic test is carried out, a control circuit signal is led out from a pin, and the operation is simple.

Description

Multi-purpose adapter terminal for switch mechanical performance testing

technical field

The utility model belongs to the field of auxiliary equipment for electromechanical detection equipment, in particular to a multi-purpose transfer terminal for testing mechanical properties of switches.

Background technique

The switch mechanical characteristic parameter test has been included in the factory test and handover test procedures of the equipment, and the switch needs to be connected to the control circuit during the test. Most of the opening and closing coils, energy storage coils, current transformer secondary terminals, locking and other control circuit leads in the above-mentioned switchgear usually use aviation plugs to realize electrical circuit connections, but due to the small size of the aviation plugs and the diameter of the pins It ranges from Ф1.5mm to Ф2.5mm, and the number of pins is large, the air insulation distance between pins is small (about 4mm), and the structure is various - the common ones are round and rhombus, which cannot be adapted to the socket Test terminal for pin connection.

In some mechanical performance tests, some people use small test clips to connect, but the size of the test clips is large, the distance between the pins is small, and the insulation distance is seriously insufficient, especially when multiple control lines need to be connected at the same time. Great inconvenience.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a simple-structure, safe and stable multi-purpose transfer terminal for testing mechanical properties of switches.

The technical scheme that the utility model adopts is:

A multi-purpose transfer terminal for testing the mechanical properties of switches, including a conductive inner wall, shrapnel and an insulating shell, the conductive inner wall is formed with an upper opening, and four shrapnels are symmetrically installed in the conductive inner wall, and the four shrapnels mutually support the lower end of the conductive inner wall A wire installation opening is formed on the inside, and an insulating shell is coaxially set outside the conductive inner wall.

Moreover, the supporting points of the four elastic pieces are located on the central axis of the insulating shell and the conductive inner wall.

Moreover, the wire installation port adopts a closed design.

Moreover, the wire installation port is connected with a plug-in connector of a test terminal through a connecting wire.

Advantage and positive effect of the present utility model are:

1. The four shrapnels in the utility model can effectively support the pins and can be adjusted or replaced according to different sizes of pins, thereby ensuring the close contact between the pins and the shrapnels, thereby ensuring the overall flow performance of the multi-purpose terminal .

2. The wire installation port in the utility model adopts a closed design, which is convenient for installing the connecting wire, and at the same time, the connecting wire is connected with the conventional test terminal, thereby ensuring the flexibility of the wiring, and thus realizing the mechanical characteristic test of the switch. It is easy to operate the control circuit signal from the pin.

3. The outer casing of the conductive inner wall is covered with an insulating layer, which ensures the insulation performance under the condition of 220V AC voltage when it is connected with dense conductors, thereby eliminating potential safety hazards.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is A-A cross-sectional view in Fig. 1;

Fig. 3 is a schematic diagram of the connection structure between the utility model and the test terminal.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the utility model.

A multi-purpose transfer terminal for testing the mechanical properties of switches, see Figure 1 and Figure 2, including a conductive inner wall 2, shrapnel 3 and an insulating shell 1, the conductive inner wall is made with an upper opening, and four shrapnels are symmetrically installed in the conductive inner wall , the four shrapnels support each other and the support points are located on the central axis of the insulating shell and the conductive inner wall. The end is formed with an opening, thereby exposing the wire installation opening of the conductive inner wall.

The wire installation port adopts a closed design, which is convenient for installing the connecting wire 5.

Referring to Figure 3, the two ends of the connecting wire are respectively connected to the wire installation port and the plug-in connector of the test terminal 6. After inserting the pin or metal sheet to be tested into the middle of the four shrapnels in the multi-purpose terminal, the conductive inner wall passes through the connecting wire and the plug-in connector of the test terminal 6. The test terminal realizes the conduction of the circuit, thereby realizing the simple operation of leading the control circuit signal from the pin during the test of the mechanical characteristics of the switch.

In this embodiment, the conductive inner wall is made of copper.

Claims (4)

1. conversion terminals of using that are used for the switch measuring mechanical property more, it is characterized in that: comprise conductive inner wall, shell fragment and insulation crust, conductive inner wall is shaped on upper shed, in conductive inner wall, be symmetrically installed with four shell fragments, these four shell fragments support the conductive inner wall bottom mutually and are shaped on the lead installing port, the outer coaxial package insulation crust of conductive inner wall, this insulation crust is shaped on upper shed and the bottom is shaped on opening, exposes the lead installing port of conductive inner wall thus.

2. conversion terminals of using for the switch measuring mechanical property according to claim 1, it is characterized in that: the strong point of described four shell fragments is positioned on the central axis of insulation crust and conductive inner wall more.

3. the conversion terminals of using for the switch measuring mechanical property according to claim 1 is characterized in that: described lead installing port employing closing in design more.

4. conversion terminals of using for the switch measuring mechanical property according to claim 3 is characterized in that more: described lead installing port is connected with the plug wire joint of a testing terminal by connecting lead.

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