Negative pressure eliminator

Abstract

The invention discloses a negative pressure eliminator. The negative pressure eliminator is characterized by comprising a valve seat, a valve housing, a valve core, a valve body, a tension spring, a floating ball, a connecting rod, a ventilation pipe and a valve cover, wherein the valve seat is fixed at the top end of a water accumulating chamber; the valve cover is fixed at the upper end of the valve seat; the ventilation pipe is arranged at the lower end of the valve seat; the floating ball is arranged below the valve seat; the valve body is arranged on the valve seat; the valve body is positioned in the valve housing; the ventilation pipe is communicated with the valve cover; the valve core and the tension spring are arranged in the valve body; the valve cover is arranged at the top end of the valve body; the center of the lower end of the valve body is provided with a ventilation opening; the valve core is in sliding connection with the valve body; the side wall of the valve core is provided with a side hole; the center of the lower end of the valve core passes through the ventilation opening formed in the lower end of the valve body through the connecting rod, and is fixedly connected with the floating ball; the upper end ae of the valve core is provided with a sealing surface; the tension spring is arranged on the connecting rod in a sleeving way; the lower end of the tension spring is pressed against the valve body; the upper end of the tension spring is pressed against the valve core, and the center of the valve cover is provided with a through hole; the lower end face of the tension spring is provided with a sealing port. The negative pressure eliminator has the advantages of novel structure, elimination of negative pressure, sensitive reaction, reliability in running, convenience in installation, long service life and the like.

Description

technical field [0001] The invention relates to a pressurized water supply equipment, in particular to a negative pressure eliminator. Background technique [0002] Existing negative pressure eliminators are widely used in pressurized water supply equipment, and negative pressure eliminators are important devices for pressurized water supply equipment. The resulting vacuum or pressure imbalance occurs. In this field, the commonly used negative pressure eliminators have the following deficiencies: 1. Sometimes the negative pressure eliminators are not exhausted in time when water enters; 3. Sometimes, because the floating ball usually adopts hollow floating ball, when the pressure in the tank increases, the hollow floating ball is prone to be crushed. , resulting in failure to eliminate negative pressure, etc. Due to the above reasons, the normal use of the whole set of water supply equipment is affected, so that the normal water supply is affected or the service life of ...

AI Technical Summary

Problems solved by technology

In this field, the commonly used negative pressure eliminators have the following deficiencies: 1. Sometimes the negative pressure eliminators are not exhausted in time when water enters; 3. Sometimes, because the floating ball usually adopts a hollow floating ball, when the pressure in the tank increases, the hollow floating ball is prone to be crushed. , leading to negative pressure elimination failure, etc.

Due to the above reasons, the normal use of the whole set of water supply equipment is affected, so that the normal water supply is affected or the service life of the equipment is affected.

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