CN201475445U

CN201475445U - Corner-type spherical check valve

Info

Publication number: CN201475445U
Application number: CN2009201866222U
Authority: CN
Inventors: 甄宇宏
Original assignee: ANHUI TONGDU VALVE Co Ltd
Current assignee: Anhui Tongdu Flow Technology Co., Ltd.
Priority date: 2009-07-27
Filing date: 2009-07-27
Publication date: 2010-05-19
Anticipated expiration: 2019-07-27

Abstract

The utility model discloses a corner-type spherical check valve which comprises a valve body, a valve cover and a spherical valve core, wherein the axis lines of a water inlet and a water outlet on the valve body are vertically intersected with each other. A valve cavity of the corner-type spherical check valve has large overflowing cross section and low fluid resistance, does not easily generate gas etching, is short in the moving distance of the valve core and the closing time, and does not easily cause destructive water hammer. The check valve can be directly installed at the bending part of a pipeline for use instead of an elbow, thus reducing the using quantity of the elbows; in addition, the valve has simple structure, fewer parts, little mechanical processing amount and low manufacturing cost.

Description

A kind of angie type ball check valve

Technical field

The utility model relates to a kind of ball check valve, especially for the ball check valve in tap water, the sewage treatment pipeline.

Background technique

At present, general ball check valve is rectilinear, and entery and delivery port owing to the valve pocket finite volume, causes fluid resistance bigger point-blank, and spool keying distance is bigger, so that the valve closing time is longer, and the destructive water hammer of easy appearance generation.

Summary of the invention

The purpose of this utility model provides a kind of angie type ball check valve, and the valve pocket volume is big, and fluid resistance is little, and the shut-in time is short, is difficult for producing destructive water hammer.

The utility model is achieved in that it comprises valve body, valve gap and spherical valve core, and the shaft axis of the entery and delivery port on the valve body is and intersects vertically.Because entery and delivery port is not spatially not point-blank, safety check is syphon shape, and valve pocket not only overflow section is big, and fluid resistance is little, and spool displacement distance is short, and the shut-in time is short, is difficult for producing destructive water hammer.

In order to prevent that spool from stopping up water outlet, valve body is provided with the block that the restriction spool enters water outlet in the inboard valve pocket of water outlet end.

For spool when closing can gently fall after rise to water intake rapidly, thereby improve closing velocity, priority scheme of the present utility model is that the valve gap inboard is provided with the guiding rib spacing to the spool lifting height.Spool can be done upper and lower moving along guiding rib in valve pocket like this, can improve keying speed.

The utility model is because water outlet and the water intake on the valve body is intersects vertically, and the valve pocket overflow section is big, and fluid resistance is little, be difficult for producing cavitation erosion, and spool displacement distance is short, and the shut-in time is short, is difficult for the destructive water hammer of generation.Safety check can be directly installed on the pipe bending place and substitute the elbow use, can reduce the elbow usage quantity, and additional valves is simple in structure, and used part is few, and machining amount is little, low cost of manufacture.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 be among Fig. 1 valve gap along A-A line sectional view.

Embodiment

As depicted in figs. 1 and 2, the utility model is made up of valve body 3, valve gap 5 and spherical valve core 2, between valve body 3 and the valve gap 5 seal ring 4 is arranged, water outlet 8 is located at valve body 3 one sides, the

shaft axis

7,10 of water outlet 8 and water intake 1 is and intersects vertically, valve body 3 is provided with the block 9 that restriction spool 2 enters water outlet in the inboard valve pocket of water outlet 8 ends, valve gap 5 inboards are provided with the guiding rib 6 spacing to spool 2 lifting heights.

Valve shown in Figure 1 is a closed condition.During water inlet, spool 2 held up by current and along 6 times side direction water outlet 8 one skew backs of guiding rib to going upward to block 9 places, i.e. position shown in the dotted line among Fig. 1.After stopping into water, spool 2 falls after rise to water intake 1 top with current, makes valve closing.

Claims

1. an angie type ball check valve comprises valve body (3), valve gap (5) and spherical valve core (2), and the shaft axis (10,7) that it is characterized in that the entery and delivery port (1,8) on the valve body (3) is and intersects vertically.

2. angie type ball check valve according to claim 1 is characterized in that valve body (3) is provided with the block (9) that restriction spool (2) enters water outlet in the inboard valve pocket of water outlet (8) end.

3. angie type ball check valve according to claim 1 and 2 is characterized in that valve gap (5) inboard is provided with the guiding rib (6) spacing to spool (2) lifting height.