CN200978996Y

CN200978996Y - Low resistance rotary-opening type check valve

Info

Publication number: CN200978996Y
Application number: CN 200620125187
Authority: CN
Inventors: 王家骐
Original assignee: Zhejiang Lishui Chengtian Environmental Protection Technology Co Ltd
Current assignee: Zhejiang Lishui Chengtian Environmental Protection Technology Co Ltd
Priority date: 2006-11-10
Filing date: 2006-11-10
Publication date: 2007-11-21
Anticipated expiration: 2016-11-10

Abstract

The utility model relates to a low resistance rotary opening inverted valve, more particularly a low resistance rotary opening inverted valve, comprising a front valve body (1), a back valve body (2) and a valve plate (3), characterized in that the utility model is also equipped with a valve plate supporting frame (6) and a couple of soft U shaped hanging buttons (4), wherein the U shaped hanging buttons (4) is composed of the folding of stripe shaped materials, the valve plate supporting frame (6) is a flat ringed element equipped with a communication hole matching the valve body, the upper portion of the valve plate (3) is asymmetrically equipped with two horizontal transparent dents (5), the U shaped hanging buttons (4) crosses the horizontal transparent dents (5) of the valve plate (3), whose both ends are detached and fixed on the upper line of the communication hole on the valve plate supporting frame (6), is clamped and fixed between the front valve body (1) and the back valve body (2) together with the valve plate supporting frame (6), and hangs the valve plate (3) on the valve body passage. The adoption of the separated form and then assembly of the front valve body (1), the back valve body (2), the valve plate supporting frame (6) and the valve plate (3) simplifies the processing craft of the elements, and the valve liquid flow appears linear with a low resistance, whose opening and closing are quite flexible.

Description

A kind of lower resistance Swing check valve

Technical field

The utility model relates to the Swing check valve of a kind of Swing check valve, particularly a kind of lower resistance.

Background technique

Known safety check is of a great variety, is divided into basically falling two kinds of formula and rotary-open types.It is bigger wherein to fall formula safety check resistance, and easily fouling is stopped up, and rotary-open type generally includes forward and backward valve body and valve block and support mechanism thereof, and the supporting axle of its rotary valve sheet all adopts mechanical axis to cooperate, the structure relative complex.It is poor not only to open closed sensitivity, and very easily damages, and particularly is applied in the conveying of strong corrosive medium, and the high anti-corrosion requirement of valve is difficult to be resolved.

Summary of the invention

The purpose of this utility model is to provide a kind of closed sensitive, simple in structure lower resistance Swing check valve of opening for overcoming the deficiencies in the prior art.

For achieving the above object, the technical solution that the utility model is taked is as follows: a kind of lower resistance Swing check valve, comprise front valve shell, rear valve body and valve block, it is characterized in that also being provided with valve block supporting frame and pair of flexible U-shaped and hang button, described U-shaped is hung button and is formed by the bending of strip sheet material, described valve block supporting frame is to be provided with and the match flat annular component of through hole of valve body latus rectum, described valve block top is arranged with two saturating grooves of level, U-shaped is hung the saturating groove of level that button passes valve block, the upper edge that two ends removably are fixed on valve block supporting frame through hole, is suspended on valve block in the valve channel between front valve shell and rear valve body with valve block supporting frame clamping.

Compared with prior art, this lower resistance Swing check valve has been simplified the processing technology of its parts like this owing to adopt front valve shell, rear valve body, valve block supporting frame and valve block to divide body formed back assembly, is convenient to the resistant material processing; Valve block is hung button by the pair of flexible U-shaped and is suspended on the valve block supporting frame and is in the valve channel, has both reduced the high request of the machining accuracy that mechanical axis joins, and has efficiently solved strong anti-corrosion requirement, and it is controlled also to make fouling stop up.It is linear that valve liquid stream is, and resistance is little, and open and close is very sensitive.Its open and close power is from the forward flow and the reverse flow of fed sheet of a media.And elastic material is adopted in reverse non-return sealing, and soft button can form suffers from one's own actions sealing surface, so the non-return sealability is outstanding.

The utility model is described in further detail below in conjunction with specific embodiment and accompanying drawing.

Description of drawings

Accompanying drawing 1 is the utility model specific embodiment closed condition structure sectional view;

Accompanying drawing 2 is the utility model specific embodiment opening state structure sectional view;

Accompanying drawing 3 is a valve block supporting frame structural representation;

Accompanying drawing 4 is Fig. 3 A-A sectional view;

Accompanying drawing 5 is the valve structure schematic representation;

Accompanying drawing 6 is Fig. 5 B-B sectional view;

Accompanying drawing 7 is Fig. 6 partial enlarged drawing;

Accompanying drawing 8 is hung the button structure schematic representation for U-shaped;

Accompanying drawing 9 is hung another specific embodiment structural representation of button for U-shaped;

Accompanying drawing 10 is for hanging the valve block supporting frame structural representation that button is kept company with U-shaped shown in Figure 9;

Embodiment

As Fig. 1, shown in 2, the lower resistance Swing check valve still is provided with front valve shell 1, rear valve body 2 and valve block 3, be provided with valve block supporting frame 6 and pair of flexible U-shaped in addition and hang button 4, as Fig. 3, shown in 8, U-shaped is hung button 4 and is formed by the bending of strip sheet material, valve block supporting frame 6 is for being provided with and the match flat annular component of through hole of valve body latus rectum, valve block 3 tops are that the through hole top is arranged with two saturating grooves 5 of level, referring to Fig. 5, Fig. 6, the width of the saturating groove 5 of level is larger than the thickness that U-shaped is hung button 4, the saturating groove 5 of level is passed in the end that length is wanted to make U-shaped hang button 4 at least, the upper edge that the two ends that U-shaped is hung button 4 removably are fixed on valve block supporting frame 6 through holes with valve block supporting frame 6 clampings between front valve shell 1 and rear valve body 2, valve block 3 is suspended in the valve channel, preferably the both sides at the two ends of U-shaped extension button 4 are respectively equipped with lug 7, two sides corresponding position in the upper edge of valve block supporting frame 6 through holes is provided with U-shaped and hangs the caulking groove 8 that button 4 ends and lug 7 shapes match, U-shaped is hung button 4 ends and lug 7 is embedded in the caulking groove 8, the degree of depth of caulking groove 8 preferably makes U-shaped hang the flush of button 4 ends and valve block supporting frame 6, only needs during dismounting that U-shaped is hung button 4 ends and takes off from caulking groove 8 and get final product; Shown in Fig. 9,10, the both sides that U-shaped is hung button 4 close two ends can also be respectively equipped with breach 9, two sides, the upper edge corresponding position of valve block supporting frame 6 through holes is provided with the caulking groove 8 that matches with U-shaped extension button 4 ends and breach 9, and U-shaped hangs button 4 ends and breach 9 is embedded in described detachable the fixing of formation in the caulking groove 8.

Front valve shell 1, rear valve body 2 can select different anticorrosive materials to make with anti-corrosion requirement according to the working condition of fed sheet of a media, can overall plastic manufacturing or be the different plastic productions of structure liner with the metal, valve block 3 Supporting fixtures can be made with different rigid plastics, valve block 3 can be made with different plastics or metal outer lining plastics, such as PPH Reinforced Polypropylene, F4 teflon, the outer PF cylinder-packing F46 of interior steel etc.; U-shaped is hung button 4 and can be made with special rubber or materials such as F4, F46.

Claims

1, a kind of lower resistance Swing check valve, comprise front valve shell (1), rear valve body (2) and valve block (3), it is characterized in that also being provided with valve block supporting frame (6) and pair of flexible U-shaped and hang button (4), described U-shaped is hung button (4) and is formed by the bending of strip sheet material, described valve block supporting frame (6) is for being provided with and the match flat annular component of through hole of valve body latus rectum, described valve block (3) top is arranged with two saturating grooves of level (5), U-shaped is hung the saturating groove of level (5) that button (4) passes valve block (3), the upper edge that two ends removably are fixed on valve block supporting frame (6) through hole, is suspended on valve block (3) in the valve channel between front valve shell (1) and rear valve body (2) with valve block supporting frame (6) clamping.

2, lower resistance Swing check valve according to claim 1, it is characterized in that: described U-shaped is hung button (4) and is formed by the bending of strip sheet material, the both sides at two ends are respectively equipped with lug (7), two sides, the upper edge corresponding position of described valve block supporting frame (6) through hole is provided with the caulking groove (8) that matches with U-shaped extension button (4) end and lug (7), and described U-shaped hangs button (4) end and lug (7) is embedded in described detachable the fixing of formation in the caulking groove (8).

3, lower resistance Swing check valve according to claim 1, it is characterized in that: described U-shaped is hung button (4) and is formed by the bending of strip sheet material, both sides near two ends are respectively equipped with breach (9), two sides, the upper edge corresponding position of described valve block supporting frame (6) through hole is provided with the caulking groove (8) that matches with U-shaped extension button (4) end and breach (9), and described U-shaped hangs button (4) end and breach (9) is embedded in described detachable the fixing of formation in the caulking groove (8).