Distributor with blockage detection function

Abstract

The invention relates to a distributor with a blockage detection function. The distributor comprises a distributor body and a detection assembly, and the detection assembly is mounted to the distributor body and used for distributor body blockage detection; the detection assembly comprises a detection switch; and the distributor body comprises a plunger arranged in a plunger cavity; and when the plunger reciprocates in the axial direction of the plunger cavity, the detection switch is abutted or separated to form switching-on or switching-off of the detection switch. No load is needed, no residual current is generated in an open circuit, no voltage drop is generated when the circuit is closed, cooperative use of a mechanical trigger detection assembly and the distributor body is facilitated, the blockage situation in the distributor body is better detected more conveniently, and the cost is lower.

Description

technical field [0001] The invention relates to a dispenser, in particular to a dispenser with blockage detection function. Background technique [0002] Distributors distribute lubricant to one or more lubrication points, usually in a metered manner, with the main line opened and closed by a control plunger used to control the metering. In order to ensure the normal operation of the dispenser, real-time monitoring is required. The clogging detection sensor of the existing distributor usually uses the PNP / NPN (transistor output signal sensor, PNP and NPN are two different ways of the triode structure) electronic proximity switch is an inductive proximity switch, because this type of sensor is due to its own With a load, there is a residual current flowing when the circuit is open, so that some sensors cannot work when the power supply is reversed, and there will be a voltage drop when the circuit is closed, and it is easily affected by the interference of the electromagneti...

AI Technical Summary

Problems solved by technology

The clogging detection sensor of the existing distributor usually uses the PNP / NPN (transistor output signal sensor, PNP and NPN are two different ways of the triode structure) electronic proximity switch is an inductive proximity switch, because this type of sensor is due to its own With a load, there is a residual current flowing when the circuit is open, so that some sensors cannot work when the power supply is reversed, and there will be a voltage drop when the circuit is closed, and it is easily affected by the interference of the electromagnetic environment; and the use of higher precision components, This in turn leads to higher costs, which is not conducive to the blockage detection of the distributor

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