CN2237852Y - Input socket with sampling - Google Patents

Abstract

The utility model relates to a socket connector for a meter, particularly an input spigot with sampling for a digital multimeter. The utility model is composed of an input spigot body and the bottom cover of a socket, and is characterized in that contact pieces are arranged in the inner cavity of the input spigot body; the contact pieces are formed by two pieces of semicircle copper pieces; before a meter bar is not be inserted, the contact pieces are insulated mutually; one piece of the contact pieces is an error-signal sampling end; the other piece is a measured-signal input end. The utility model has the advantages of simple structure, easy manufacture, correct sampling information, and has the advantage that the meter is effectively protected from damage.

Description

Band sampling input socket

The utility model relates to a kind of instrument connector, especially a kind of band sampling input socket of digital multimeter.

Present existing input socket is generally single core copper pipe shape socket, often because range switch position and input terminal are not inconsistent the input measured signal, be positioned at interchange 750V gear as the range switch position, prepare to measure line voltage, input table rod then is inserted in current input terminal, input resistance owing to current input terminal when measuring is minimum, big current terminal has only 0.01 Ω, all might damage circuit or tested from outside in the multimeter so table rod one inserts load, thereby can't obtain to cause damaging the information of instrument owing to bust.

The purpose of this utility model is that a kind of band sampling input socket will be provided, and the socket of just sampling out before measuring operation operation correctness signal shifts to an earlier date bulletin, plays the function of more effective protection instrument.

The purpose of this utility model is achieved in that a kind of band sampling input socket, form by input socket body and socket bottom, it is characterized in that importing in the socket intracoelomic cavity contact chip is housed, contact chip is combined into by two semi-circular copper sheets, before not inserting the table rod, mutual insulating, wherein a slice is sampling error signal end, another sheet is input measured signal end.As bust, range switch position and input terminal are not inconsistent, and before also measuring, when table rod one inserts socket, the table inner control circuit square road error signal of just sampling out reminds the operator need change correct input terminal, has solved the hidden danger that accident takes place.

The utility model is simple in structure, makes easily, and sample information is correct, and it is impaired to protect instrument to exempt from effectively, is worthy of popularization.

Below in conjunction with drawings and Examples the utility model is illustrated in detail.

Fig. 1 is the utility model structural representation

Among the figure: 1. socket bottom; 2. import the socket body; 3. contact chip.

As shown in Figure 1, a kind of band sampling input socket, form by input socket body (2) and socket bottom (1), it is characterized in that importing in socket body (2) inner chamber contact chip (3) is housed, contact chip (3) is combined into by two semi-circular copper sheets, before not inserting the table rod, and mutual insulating, wherein a slice is sampling error signal end, and another sheet is input measured signal end.Before use measuring, as bust, range switch position and input terminal are not inconsistent, and when table rod one inserts socket, the table inner control circuit short circuit error signal of just sampling out reminds the operator need change correct input terminal, has solved the hidden danger of accident generation.

Claims (2)

1. a band sampling input socket is made up of input socket body (2) and socket bottom (1), it is characterized in that importing in socket body (2) inner chamber contact chip (3) is housed.

2. band sampling input socket according to claim 1 is characterized in that contact chip (3) is combined into by two semi-circular copper sheets, before rod is shown in access, and mutual insulating.

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