Water changing device with flow adjusting and controlling structure capable of preventing backflow

Abstract

The invention discloses a water changing device with a flow adjusting and controlling structure capable of preventing backflow. The water changing device comprises an air conditioning water tank, a telescopic air cylinder and a water drainage pipe, a water changing tank is installed above the air conditioning water tank, a water inlet pipe is arranged on one side of the water changing tank, the telescopic air cylinder is installed at the top of the water changing tank, the water drainage pipe is fixed on the other side of the water changing tank, the outer side of the water drainage pipe is sleeved with a device box, a connecting pipe is connected to the bottom of the water drainage pipe, the top of the device box is provided with an adjusting rod, the bottom of the adjusting rod is connected with a blocking block, the side of the blocking block is provided with a limiting rod, the end of the limiting rod is connected with the inner wall of the device box through a fixing strip, and afixing block is fixed inside the device box. The water changing device with the flow adjusting and controlling structure capable of preventing backflow can change waste water in the central air conditioning water tank and has the backflow preventing and flow adjusting and controlling functions, can filter away impurities in water in the water changing process, and improves water changing efficiency.

Description

technical field [0001] The invention relates to the technical field of central air-conditioning, in particular to a water exchange device with a flow control structure capable of preventing backflow. Background technique [0002] After the central air conditioner has been used for a long time, dirt and bacteria will grow inside the water tank, and water change refers to the process of discharging the original waste water in the air conditioner water tank and introducing clean water to ensure that the water tank to be used is always kept in a clean state However, the existing water changing methods have the following problems: 1. Most of them need to change the water manually, which is time-consuming and labor-intensive, and the operation steps are cumbersome, resulting in low efficiency of water changing, and the water after changing still contains impurities; 2. The waste water is discharged Afterwards, it is easy to flow back into the air-conditioning water tank, does not ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a water exchange device with a self-contained flow control structure that can prevent backflow, so as to solve the problem of low water exchange efficiency caused by the above-mentioned manual water exchange, lack of backflow prevention function, and inability to adjust the flow rate of the discharged water. The problem that the wastewater cannot be preliminarily filtered during the process of regulation and water change

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