Detection valve, nitrogen charging detection assembly and air conditioning equipment

Abstract

The invention provides a detection valve, a nitrogen charging detection assembly and air conditioning equipment. The detection valve comprises a valve body, a main valve core, an indication rod and adriving part; a nozzle flow channel and an output port are formed in the valve body, and an inner cavity of the valve body communicates with the nozzle flow channel and the output port; the main valvecore is arranged at the position of the nozzle flow channel, and is used for controlling opening and closing of the nozzle flow channel; one of the main valve core and the valve body is provided witha penetrating channel through which the indication rod penetrates; the driving part is connected with the indication rod, and is used for driving the indication rod to move along the channel according to pressure in the inner cavity of the valve body; and when the pressure in the inner cavity of the valve body reaches the preset pressure, the indication rod is driven until at least a part of theindication rod extends out of the channel for indication. According to the detection valve, both the opening and closing control function and the internal pressure indicating function are achieved, inthis way, a pipe nut part with an indicating function in the prior art can be replaced by a standard plug element or a standard pipe nut, so that the interchangeability is high; and the degree of product standardization is improved, and the product cost is reduced.

Description

technical field [0001] The invention relates to the field of air conditioner detection valves, in particular to a detection valve, a nitrogen filling detection assembly and an air conditioner. Background technique [0002] In order to improve the protection effect of the equipment, the heat exchanger, compressor, storage tank, vapor-liquid separator and other components of the existing air-conditioning equipment will be protected, such as nitrogen-filled protection treatment. Specifically, a detection valve is installed in the One interface of the heat exchanger, connect a pipe nut with indicating function to the other interface of the heat exchanger, inject nitrogen protection into the heat exchanger from the detection valve, and the indicating function part on the pipe nut displays the internal pressure , in the process of practicing the present invention, the inventor found that the prior art has the following problems: the detection valve and the pipe nut are both functi...

AI Technical Summary

Problems solved by technology

[0002] In order to improve the protection effect of the equipment, the heat exchanger, compressor, storage tank, vapor-liquid separator and other components of the existing air-conditioning equipment will be protected, such as nitrogen-filled protection treatment. Specifically, a detection valve is installed in the One interface of the heat exchanger, connect a pipe nut with indicating function to the other interface of the heat exchanger, inject nitrogen protection into the heat exchanger from the detection valve, and the indicating function part on the pipe nut displays the internal pressure , in the process of practicing the present invention, the inventor found that the prior art has the following problems: the detection valve and the pipe nut are functional components with complex structures, and the interchangeability is poor, which leads to higher cost of air-conditioning equipment

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