CN207406840U - For the unidirectional floating valve of leakage-proof - Google Patents

Abstract

The utility model discloses a kind of unidirectional floating valve for leakage-proof, including import, outlet and spool；For being located at bottom of liquid container, outlet is located at below import, and valve chamber is formed between import and outlet for import；Spool has during liquid in valve chamber and swims on liquid level in the outlet closing, to form closure to the import；It is preferred that spool includes episphere and lower semisphere, floating plate is formed between episphere and lower semisphere, floating plate diameter is more than the sphere diameter of episphere and lower semisphere the maximum；A plurality of fin, multiple pillars or multiple salient points are formed on floating plate lower face；And when being contacted in the upper surface of floating plate with the outlet, also there is gap between lower semisphere and outlet.The beneficial effects of the utility model are, check valve is automatically controlled by buoyancy formation, during for multiple containers parallel connection blowdown, can effectively prevent sewage channeling water during each container blowdown, and its is simple in structure, function is reliable, and manufacture is at low cost, failure rate is low.

Description

For the unidirectional floating valve of leakage-proof

Technical field

The utility model is related to a kind of check valves, more particularly to a kind of unidirectional floating valve for leakage-proof.

Background technology

In sewage disposal or water correction plant, multistage processing mode is usually formed by multiple processing units, each There are one independent containers for processing unit tool.In the pollution discharge structure of equipment, the sewage draining exit of multiple containers is usually by individually controlling The check valve or solenoid valve of system add the mode of check valve to be incorporated to blowdown manifold, to prevent processing units at different levels from passing through sewage draining exit Mutual channeling water.This leakage-proof is complicated, and manufacture is of high cost.For this purpose, existing anti-channeling water one-way valve need to be improved.

The content of the invention

The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of unidirectional floating valve for leakage-proof, The valve is not required to specially be controlled using the one-way valve structures that automatically open of law of buoyancy formation, Push And Release, with simplify structure and Control mode effectively reduces manufacture cost and failure rate.

To realize object defined above, the utility model adopts the following technical solution.

A kind of unidirectional floating valve for leakage-proof, including import, outlet and spool；The import is held for being located at liquid Device bottom, outlet are located at below import, and valve chamber is formed between import and outlet；The spool is in the outlet envelope It closes, and has in valve chamber during liquid and swim on liquid level, to form the closure to the import.

Using the utility model of preceding solution, in a state that blowdown manifold is closed circuit, blowdown manifold by container from The liquid filling of sewage draining exit outflow, liquid generates buoyancy to buoyancy check valve, so that buoyancy check valve is automatically closed.Hold When device needs blowdown, using the check valve of law of buoyancy under blowdown manifold open-circuit conditions, because liquid flowing is led in blowdown manifold Liquid level is caused to decline to automatically open, is not required to individually control, is also not required to set solenoid valve, so as to simplify structure, reduce cost, reduces event Barrier rate.

Preferably, the spool includes episphere and lower semisphere, floating plate is formed between episphere and lower semisphere, floating plate is straight Footpath is more than the sphere diameter of episphere and lower semisphere the maximum.To form steady lifting structure by floating plate, it is ensured that function is reliable；Together When, lower semisphere is mainly used for increasing spool displacement.

It is further preferred that a plurality of fin, multiple pillars or multiple salient points are formed on the floating plate lower face.With in valve In intracavity liquid discharge process, spool gradually falls to be stopped when floating plate is supported on outlet upper surface, and outlet upper surface passes through A plurality of fin, multiple pillars or multiple salient points on floating plate form the support to spool, so as to avoid spool by floating plate to going out Mouth forms end face seal structure, to ensure that valve intracavity liquid is drained.

It is further preferred that when being contacted in the upper surface of the floating plate with the outlet, between lower semisphere and the outlet Also there is gap.Outlet is blocked to avoid the lower semisphere of spool, it is ensured that valve intracavity liquid is drained.It is a plurality of with reference to being set on floating plate It is better during the structure of fin, multiple pillars or multiple salient points.

The beneficial effects of the utility model are that check valve is automatically controlled by buoyancy formation, for multiple containers and townhouse When dirty, sewage channeling water during each container blowdown can be effectively prevented, and its is simple in structure, function is reliable, manufactures at low cost, failure Rate is low.

Description of the drawings

Fig. 1 is the structure diagram of the utility model.

Specific embodiment

The utility model will be further described below with reference to the accompanying drawings, but the utility model therefore is not limited in institute Among the scope of embodiments stated.

Referring to Fig. 1, a kind of unidirectional floating valve for leakage-proof, including import 1, outlet 2 and spool；The import 1 is used In being located at bottom of liquid container, outlet 2 is located at 1 lower section of import, valve chamber is formed between import 1 and outlet 2；The spool with It is closed in the outlet 2, and has in valve chamber during liquid and swim on liquid level, to form the closure to the import 1.

Wherein, spool includes episphere 3a and lower semisphere 3b, and floating plate 3c is formed between episphere 3a and lower semisphere 3b, floats Disk 3c diameters are more than the sphere diameter of episphere 3a and lower semisphere 3b the maximum, and lower semisphere is used to increase spool displacement.The floating plate A plurality of fin, multiple pillars or multiple salient points are formed on 3c lower faces, and fin is radially extended along floating plate, pillar or salient point are dashed forward It is stretched outside on floating plate lower face.The floating plate 3c with it is described outlet 2 upper surface contact when, lower semisphere 3b with it is described outlet 2 it Between also have gap.

When container normally stores liquid, outlet 2 is closed this programme, and hydraulically full in valve chamber, spool swims in liquid in buoyancy On body, episphere 3a automatic sealing packages block input port 1；When container needs blowdown, outlet 2 is opened, and valve intracavity liquid is from 2 row of valve port Go out, spool whereabouts opens import 1, so as to reach lasting blowdown purpose；Outlet 2 is closed, container stores liquid status into normal.

The preferred embodiment of the utility model described in detail above.It should be appreciated that the ordinary skill people of this field Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to the design of the utility model in domain Available technical solution is tested, it all should be in the protection domain being defined in the patent claims.

Claims (4)

1. a kind of unidirectional floating valve for leakage-proof, including import (1), outlet (2) and spool；It is characterized in that, it is described into For being located at bottom of liquid container, outlet (2) is located at below import (1) mouth (1), and valve is formed between import (1) and outlet (2) Chamber；The spool for it is described outlet (2) closing, and valve chamber in have liquid when swim on liquid level, with formed to institute State the closure of import (1).

2. the unidirectional floating valve according to claim 1 for leakage-proof, which is characterized in that the spool includes episphere (3a) and lower semisphere (3b), is formed with floating plate (3c) between episphere (3a) and lower semisphere (3b), floating plate (3c) diameter is more than upper The sphere diameter of hemisphere (3a) and lower semisphere (3b) the maximum.

3. the unidirectional floating valve according to claim 2 for leakage-proof, which is characterized in that floating plate (3c) lower face On be formed with a plurality of fin, multiple pillars or multiple salient points.

4. the unidirectional floating valve according to claim 2 for leakage-proof, which is characterized in that in the floating plate (3c) and institute When stating the upper surface contact of outlet (2), also there is gap between lower semisphere (3b) and the outlet (2).