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Drainage device

A liquid drainage device and liquid technology, applied in soil drainage, transportation and packaging, components of pumping devices for elastic fluids, etc., can solve problems such as inability to suck sewage into closed cavities and destroy vacuum

Inactive Publication Date: 2015-10-14
HONGZHUN PRECISION MOLD KUNSHAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the closed cavity of the water-absorbing vacuum cleaner forms an environment with a certain degree of vacuum, when draining, external air will enter the closed cavity through the drain port, thereby destroying its vacuum, so that the vacuum must be stopped when draining. device, resulting in the inability to suck sewage into the closed cavity while draining

Method used

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Embodiment Construction

[0044] see figure 1 The liquid discharge device 100 includes a cylinder 20 , a driving assembly 30 , a first non-return assembly 40 , a second non-return assembly 50 , and a control assembly 60 for controlling the action of the driving assembly 30 . In this embodiment, the liquid discharge device 100 is used to extract the liquid in the closed cavity 10, and the closed cavity 10 is respectively provided with a liquid injection channel 12 and a gas channel 14 on the side walls near the top of the closed cavity. A slag discharge hole 16 is opened at the bottom of the chamber 10 , and the closed cavity 10 also includes a sealing cover 18 for sealing the slag discharge hole 16 . The liquid injection channel 12 is equipped with a valve body (not shown) for controlling liquid flow. The liquid injection channel 12 is used for liquid to flow in. The gas passage 14 is connected with a vacuum device (not shown) outside the closed cavity 10 for vacuuming the closed cavity.

[0045] Th...

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Abstract

A drainage device for draining liquid out of a closed chamber includes an air cylinder, a driving assembly, a first channel, a second channel, a first sealing assembly, a second sealing assembly, and a controller. The air cylinder includes a main body defining a receiving chamber, an action piston positioned in the receiving chamber of the main body, and a connecting rod connected to the action piston. The main body defines a liquid inlet and a liquid outlet, both of which communicate with the receiving chamber, and the presence of a fixed piston with a seal in each of the inlet and outlet creates a double-acting one-way valve when the action piston is moved up and down.

Description

technical field [0001] The invention relates to a liquid discharge device, in particular to a liquid discharge device capable of discharging liquid in a closed cavity and keeping the gas environment in the closed cavity unchanged. Background technique [0002] In the occasions where the sewage needs to be discharged, vacuum suction is often used to suck the sewage into the container and discharge it, such as a water-absorbing vacuum cleaner, which usually includes a closed cavity as a water storage container, and the vacuum device makes the closed cavity The gas reaches a certain degree of vacuum. Sewage is pressed into the closed cavity under the action of air pressure. However, since the closed cavity of the water-absorbing vacuum cleaner forms an environment with a certain degree of vacuum, when draining, external air will enter the closed cavity through the drain port, thereby destroying its vacuum, so that the vacuum must be stopped when draining. device, resulting in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47L7/00A47L9/28A47L9/00
CPCE02B11/00B01D35/26F04B1/02F04B53/106F04B53/108Y10T137/7313
Inventor 杨明陆张亚东张天恩李越
Owner HONGZHUN PRECISION MOLD KUNSHAN