CN201090483Y - Fast exhaustion water stop valve - Google Patents

Abstract

The utility model relates to a quick exhaust water-stop valve, comprising a valve body, an exhaust plate and a suction inlet. The valve is characterized in that a vertical bar is arranged in the valve body, the upper part of the bar is positioned in a slide hole on the exhaust plate and the lower part of the bar is positioned in an inserted link at the bottom of the valve; a horizontal valve plate is arranged at the upper part of the bar and is opposite to an exhaust outlet on the exhaust plate; and a ball float is arranged in the middle of the bar; a balancing weight is arranged on the bar; and the valve plate is a rubber sheet. The utility model has the advantages that water is filled in the whole pump after the air in the pump is exhausted and flows into the valve body through the suction inlet; the ball floats is lifted up under buoyancy to push the rubber valve plate on the bar to go up and block the exhaust outlet, and finally water is stopped from flowing into a vacuumizing device.

Description

A quick exhaust water stop valve

technical field

The utility model relates to an exhaust water stop valve, in particular to a fast exhaust water stop valve.

Background technique

When the pump is started, there is a vacuum water diversion method, that is, the air in the pump chamber is sucked away by a vacuum device to form a low pressure, and the water enters the pump chamber and fills it up, and then the pump is started to run. But after the air in the pump is pumped out, after water can enter the pump cavity, if the vacuum suction device is still working at this moment, water will enter the vacuum suction device simultaneously with the air, so just easily damage the vacuum suction device, urgently need to invent a kind of vacuum suction device Exhaust water stop valve capable of only exhausting but not draining.

Contents of the invention

The purpose of the utility model is to solve the problem in the prior art that the vacuum suction device sucks water into the air in the water pump and causes damage to the vacuum suction device, and provides a fast exhaust water stop valve. The utility model designs a fast exhaust water stop valve, which includes a valve body, an exhaust plate, and a suction port. The lower part of the rod is located in the insert rod at the bottom of the valve. There is a horizontally placed valve plate on the upper part of the rod. The valve plate is opposite to the exhaust port on the exhaust plate. There is a floating ball in the middle of the rod. There are counterweights on the rod. The valve plate is a rubber plate. The utility model has the advantage that when the air in the pump is pumped out, the water fills the whole pump and flows into the valve body along with the suction port, the floating ball rises under the action of buoyancy, and then pushes the rubber valve plate on the upper rod of the floating ball to rise and Block the exhaust port to prevent water from flowing out into the vacuum suction device.

Description of drawings

Accompanying drawing is the structural representation of the utility model.

Below in conjunction with accompanying drawing and example the utility model is described in detail.

Detailed ways

The figure includes a valve body 1, an exhaust plate 2, and a suction port 3. It is characterized in that there is a vertically placed rod 4 inside the valve body 1. The upper part of the rod 4 is located in the sliding hole 5 of the exhaust plate 2. The rod 4 The lower part is located in the insert rod 6 at the bottom of the valve, and there is a valve plate 7 placed horizontally on the top of the rod 4. The valve plate 7 is opposite to the exhaust port 8 on the exhaust plate 2, and there is a floating ball 9 in the middle of the rod 4. On the rod 4 there is a counterweight 10 . The valve plate 7 is a rubber sheet.

When in use, after the pump is started, the pump shaft drives the external vacuum device connected to the exhaust port 8 on the exhaust plate 2 at the top of the valve body 1 to suck air, thereby forming a low pressure state at the top of the valve body 1, and the bottom of the valve body 1 The suction port 3 sucks the air in the pump and discharges it from the top. With the rotation of the pump shaft, the air in the pump is quickly pumped out, the water fills the whole pump and flows into the valve body 1 along with the suction port, the floating ball 9 rises under the action of water buoyancy, the rod 4 can only move up and down in a straight line, and then Push the rubber valve plate 7 on the rod 4 to rise and block the exhaust port 8, which prevents the water from flowing out, and the whole exhaust and water stop process is completed.

Once the water level drops, the valve can return to its original shape.

Claims (3)

1. quick exhaust sealing valve, comprise valve body, exhaustion plate, suction port, it is characterized in that: a vertical bar of placing is arranged in valve body, the top of bar is positioned at the slide opening of exhaustion plate, the bottom of bar is positioned at the inserted link at the bottom of the valve, the valve block that one horizontal positioned is arranged on the top of bar, valve block is relative with relief opening on the exhaustion plate, at the middle part of bar one ball float is arranged.

2. by the described a kind of quick exhaust sealing valve of claim 1, it is characterized in that: balancing weight is arranged on bar.

3. by the described a kind of quick exhaust sealing valve of claim 1, it is characterized in that: valve block is a sheet rubber.

Images