CN209483999U

CN209483999U - One kind is peculiar to vessel can enclosed flap valve

Info

Publication number: CN209483999U
Application number: CN201920106598.0U
Authority: CN
Inventors: 江小卫; 程军; 程绍坚; 方斌
Original assignee: Nantong Tengzhou Shipbuilding Machinery Co Ltd
Current assignee: Nantong Tengzhou Shipbuilding Machinery Co Ltd
Priority date: 2019-01-22
Filing date: 2019-01-22
Publication date: 2019-10-11
Anticipated expiration: 2029-01-22

Abstract

This application discloses it is a kind of it is peculiar to vessel can enclosed flap valve, including valve deck, valve body, gland, valve rod and turnover panel, valve deck is hollow structure, valve rod runs through the lower end of valve deck and extends in valve body, gland is set in valve deck, gland is for fixing valve rod, it include the valve chamber of upper end in valve body, the admission chamber for going out sap cavity and right end of left end, mounting groove is set in valve chamber, torsion axis is set in mounting groove, connecting plate is set on torsion axis, sealing surface is arranged in lower end between admission chamber and out sap cavity, turnover panel is obliquely installed between sap cavity and admission chamber out, the upper end of turnover panel is fixedly connected with connecting plate, and it is bonded with mounting groove end, the lower end of turnover panel is bonded with sealing surface, the convex block to match with valve rod is also set up on turnover panel.The application can be automatically closed turnover panel in the case where no liquid, prevent liquid reflux by the torsion axis of the appropriate torsion of setting, and when the pressure of liquid is greater than the torsion of torsion axis, turnover panel is automatically turned on, and realize liquid communication.

Description

One kind is peculiar to vessel can enclosed flap valve

Technical field

This application involves valve technology fields, and in particular to one kind is peculiar to vessel can enclosed flap valve.

Background technique

For pipeline (≤DN100 of larger caliber), using traditional screw down nonreturn valve have cracking pressure is big, weight compared with The partially long disadvantage of weight, axial length, common improvement project are that the form an of butterfly (at plate) check-valves is added with butterfly valve, It is this to use the method for bivalve to need that a short tube is arranged between two valves again to realize non-return and turn-off function, otherwise influence valve When plate is opened, the movement outside protrusion valve is turned over, so not ideal enough, occupied space is big and higher cost.

Summary of the invention

The purpose of the application be it is in view of the drawbacks of the prior art and insufficient, provide it is a kind of it is peculiar to vessel can enclosed flap valve.

To achieve the above object, the application the technical solution adopted is that: it is a kind of it is peculiar to vessel can enclosed flap valve, including valve deck, Valve body, gland, valve rod and turnover panel, innovative point are: the valve deck is hollow structure, and the valve rod runs through the lower end of valve deck simultaneously It extends in valve body, gland is set in the valve deck, and the gland is for fixing valve rod, the valve including upper end in the valve body Chamber, left end the admission chamber for going out sap cavity and right end, mounting groove is set in the valve chamber, torsion axis, institute are set in the mounting groove State and connecting plate be set on torsion axis, go out to open up long waist shaped hole with torsion axis on the connecting plate, the admission chamber and out sap cavity it Between lower end sealing surface is set, it is described to go out to be obliquely installed turnover panel, the upper end of the turnover panel and connecting plate between sap cavity and admission chamber It is fixedly connected, and is bonded with mounting groove end, the lower end of the turnover panel is bonded with sealing surface, is also set up on the turnover panel and valve rod The convex block to match, the turnover panel are reliable closed state in the case where positive liquid stream.

Further, it is 0.4MPa that the valve rod, which can bear positive pressure medium,.

Further, airtight and watertight padding is set between the valve deck inner wall and valve rod.

Further, handle is fixedly installed in the upper end of the valve rod.

After adopting the above structure, the application has the beneficial effect that

The application structure is simple, cost is relatively low, easy to use, by the way that the torsion axis of appropriate torsion is arranged, makes turnover panel in nothing It can be automatically closed in the case where liquid, prevent liquid reflux, when the pressure of liquid is greater than the torsion of torsion axis, turnover panel is automatic It opens, realizes liquid communication；By the way that convex block is arranged on turnover panel, it is able to bear the pressure of valve rod, and turnover panel is promoted to close, prevented The case where turnover panel is deformed and is leaked；By the way that the biggish valve rod of rigidity is arranged, it is ensured that will not be by turnover panel under 0.4MPa pressure Push away bending deformation；By the way that inclined turnover panel is arranged, valve rod is facilitated vertically to suppress turnover panel；The application have cracking pressure it is low, The advantages that medium flow resistance is smaller, axial length is smaller, arrangement is convenient, light-weight, is provided simultaneously with the effect of pipeline and backflow.

Detailed description of the invention

Structural schematic diagram when Fig. 1 is the closure of the application；

Structural schematic diagram when Fig. 2 is the unlatching of the application.

Description of symbols:

1 valve deck, 2 valve bodies, 3 glands, 4 valve rods, 5 turnover panels, 6 valve chambers, 7 go out sap cavity, 8 admission chambers, 9 mounting grooves, 10 torsion axis, 11 connecting plates, 12 sealing surfaces, 13 convex blocks, 14 airtight and watertight paddings, 15 handles.

Specific embodiment

The application is further described with reference to the accompanying drawing.

In order to which the objects, technical solutions and advantages of the application are more clearly understood, below in conjunction with attached drawing and specific implementation The application is further elaborated in mode.It should be appreciated that the specific embodiments described herein are only to explain this Application is not used to limit the application.

Referring to Fig. 1-2, it is a kind of it is peculiar to vessel can enclosed flap valve, including valve deck 1, valve body 2, gland 3, valve rod 4 and turnover panel 5, valve Lid 1 is hollow structure, and valve rod 4 runs through the lower end of valve deck 1 and extends in valve body 2, gland 3 is arranged in valve deck 1, gland 3 is used for Fixed valve rod 4, the admission chamber 8 for going out sap cavity 7 and right end of valve chamber 6, left end in valve body 2 including upper end, setting installation in valve chamber 6 Slot 9, mounting groove 9 is interior to be arranged torsion axis 10, and connecting plate 11 is arranged on torsion axis 10, goes out to open up with torsion axis 10 on the connecting plate Long waist shaped hole, the lower end between admission chamber 8 and out sap cavity 7 are arranged sealing surface 12, are obliquely installed between sap cavity 7 and admission chamber 8 out The upper end of turnover panel 5, turnover panel 5 is fixedly connected with connecting plate 11, and is bonded with 9 end of mounting groove, the lower end of turnover panel 5 and sealing surface 12 Fitting, also set up on turnover panel 5 with valve rod 4 relative to convex block 13, turnover panel 5 is normally off in the case where no pressure.At this In embodiment, the preferably corrosion-resistant material of torsion axis, while pass can also be realized using the weight of turnover panel itself in order to avoid setting torsional spring It closes, the material of turnover panel preferred sufficient intensity and rigidity.

In the present embodiment, there is lesser flow resistance when liquid forward flow.

In the present embodiment, valve rod 4 is held by pressure≤0.4MPa, it is ensured that will not be pushed away curved change by turnover panel under 0.4MPa pressure Shape.

In the present embodiment, airtight and watertight padding 14 is set, it is ensured that the leakproofness used, raising make between 1 inner wall of valve deck and valve rod 4 Use quality.

In the present embodiment, handle 15 is fixedly installed in the upper end of valve rod 4.

The working principle of the application:

When turnover panel 5 in the case where no pressure be normally off, can prevent liquid by go out sap cavity 7 flow back；Work as feed liquor When the pressure of liquid is greater than 5 close moment of turnover panel at chamber 8, turnover panel 5 is automatically turned on, and realizes liquid communication；When need by liquid cut When stream, convex block 13 is resisted by moving down valve rod 4, finally closes turnover panel 5, realizes the purpose shut off；In conclusion the application Have many advantages, such as that cracking pressure is low, medium flow resistance is smaller, axial length is smaller, arrangement is convenient, light-weight, be provided simultaneously with pipeline and The effect of backflow.

The above is only to illustrate the technical solution of the application rather than limits, and those of ordinary skill in the art are to this Shen The other modifications or equivalent replacement that technical solution please is made, without departing from the spirit and scope of technical scheme, It should all cover in claims hereof range.

Claims

1. it is a kind of it is peculiar to vessel can enclosed flap valve, including valve deck, valve body, gland, valve rod and turnover panel, it is characterised in that: the valve deck For hollow structure, the valve rod runs through the lower end of valve deck and extends in valve body, and gland is arranged in the valve deck, and the gland is used In setting in the admission chamber for going out sap cavity and right end of valve chamber, left end in fixed valve rod, the valve body including upper end, the valve chamber Mounting groove, the mounting groove is interior to be arranged torsion axis, and connecting plate is arranged on the torsion axis, goes out to open with torsion axis on the connecting plate If long waist shaped hole, sealing surface is arranged in the lower end between the admission chamber and out sap cavity, described to go out to tilt between sap cavity and admission chamber Be arranged turnover panel, the upper end of the turnover panel is fixedly connected with connecting plate, and is bonded with mounting groove end, the lower end of the turnover panel with it is close Cover is bonded, and also sets up the convex block to match with valve rod on the turnover panel, the turnover panel is reliable in the case where positive liquid stream Closed state.

2. one kind according to claim 1 is peculiar to vessel can enclosed flap valve, it is characterised in that: the valve rod can bear positive Jie Matter pressure is 0.4MPa.

3. one kind according to claim 1 is peculiar to vessel can enclosed flap valve, it is characterised in that: the valve deck inner wall and valve rod it Between airtight and watertight padding is set.

4. one kind according to claim 1 is peculiar to vessel can enclosed flap valve, it is characterised in that: the upper end fixation of the valve rod is set Set handle.