Butterfly valve with good anti-corrosion and sealing effects

Abstract

The butterfly valve with the good anti-corrosion sealing effect comprises a valve body, the left end and the right end of the valve body are fixedly connected with connecting flanges, the side faces, away from each other, of the two connecting flanges are each provided with a set of connecting holes, the side faces, away from each other, of the two connecting flanges are each provided with a sealing groove, and the sealing grooves are communicated with the connecting holes. A sealing gasket is connected to the inner wall of each sealing groove in a clamped mode. According to the butterfly valve, through the arrangement of the valve plate, the sealing sleeve, the positioning slope plate, the connecting flange, the sealing groove and the sealing gasket, the sealing performance between the valve plate and the valve body can be improved, sealing connection of the valve body is achieved, the sealing effect of the butterfly valve is effectively improved, and through the arrangement of the mounting base, the filter screen frame, the mounting stud, the mounting nut and the anti-corrosion fluorine plate, the anti-corrosion performance is improved. The whole anti-corrosion function of the valve plate can be increased, impurities entering the valve body are filtered and removed, abrasion and corrosion of the valve plate are reduced, the anti-corrosion and sealing effects of the butterfly valve are effectively improved, and effective use of the butterfly valve is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to butterfly valve technical field especially a butterfly valve with good anticorrosive sealing effect. BACKGROUND

[0002] The butterfly valve is also called flap valve, and it is a simple structure regulating valve, the butterfly valve is a disc-shaped butterfly plate, rotates around its own axis in the valve body, so as to achieve the purpose of opening and closing or adjusting, the butterfly valve can be used for controlling the flow of air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive medium, etc., mainly plays the role of cutting off and throttling on the pipeline, the butterfly valve has the advantages of simple structure, small size, light weight, material saving, small installation size, etc., has good flow regulating function, and is the fastest developing valve variety in recent ten years.

[0003] The utility model discloses a butterfly valve with good sealing effect, but the above patent still has certain deficiencies when using, although the sealing of the butterfly valve is realized, but the anticorrosion effect in the butterfly valve is poor, and the pollution impurities in the external water liquid can easily cause the abrasion and corrosion of the valve plate in the butterfly valve, thereby inconvenient for the safe and stable use of the butterfly valve, therefore, we provide a butterfly valve with good anticorrosive sealing effect to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a butterfly valve with good anticorrosive sealing effect, to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A butterfly valve with good anticorrosive sealing effect, including the valve body, the left and right two ends of valve body are all fixedly connected with the connecting flange, a group of connecting holes are all set up in the side of two connecting flanges away from each other, the sealing recess is set up in the side of two connecting flanges away from each and the inner wall of each sealing recess is all clamped with sealing washer, the inner wall of annular clamping groove is clamped with sealing sleeve, the inside of valve body is equipped with valve plate, the left and right sides of valve plate are all fixedly connected with anticorrosive fluorine plate, the bottom of valve plate is fixedly connected with the rotating shaft, the top of valve plate is fixedly connected with valve rod, the top of valve rod penetrates valve body and is fixedly connected with driver, the outer surface of valve rod is equipped with sealing ring, the bottom of sealing ring and the inner wall of top of valve body are clamped, the inner wall of valve body is fixedly connected with mounting seat, the inner wall of mounting seat is clamped with filter screen frame.

[0007] In further embodiments, the left side of the filter screen frame is provided with annularly arranged mounting holes, and the inner wall of the mounting seat is fixedly connected with a group of mounting studs, the left end of each mounting stud penetrates through the mounting hole and is threadedly connected with a mounting nut.

[0008] In further embodiments, the left and right sides of the valve plate are fixedly connected with a group of stabilizing strips, and the stabilizing strips are made of stainless steel.

[0009] In further embodiments, the inner wall of the valve body is fixedly connected with two positioning slope plates, and the two positioning slope plates are respectively located on the left and right sides of the sealing sleeve.

[0010] In further embodiments, the front surface of the valve body is fixedly connected with a flow direction marker, and the flow direction marker is located in the middle of the valve body.

[0011] In further embodiments, the back surface of the valve body is fixedly connected with a model marker, and the model marker is located in the middle of the valve body.

[0012] Compared with the prior art, the butterfly valve has the advantages that:

[0013] The valve plate, the sealing sleeve, the positioning slope plate, the connecting flange, the sealing groove and the sealing gasket are arranged, so that the sealing property between the valve plate and the valve body is improved, the sealing connection of the valve body is realized, the sealing effect of the butterfly valve is effectively improved, the mounting seat, the filter screen frame, the mounting stud, the mounting nut and the anti-corrosion fluorine plate are arranged, the overall anti-corrosion function of the valve plate is improved, impurities entering the valve body are filtered and removed, the abrasion and corrosion of the valve plate are reduced, the anti-corrosion and sealing effects of the butterfly valve are effectively improved, and the butterfly valve is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole three-dimensional structure schematic view of the butterfly valve with good anti-corrosion and sealing effects.

[0015] Figure 2 It is a side view of the valve body in the butterfly valve with good anti-corrosion and sealing effects.

[0016] Figure 3 It is a back view of the valve body in the butterfly valve with good anti-corrosion and sealing effects.

[0017] Figure 4 It is an internal exploded structure schematic view of the valve body in the butterfly valve with good anti-corrosion and sealing effects.

[0018] In the figure: 1, valve body; 2, flow direction mark; 3, connecting flange; 4, connecting hole; 5, sealing washer; 6, sealing ring; 7, valve stem; 8, driver; 9, stabilizing strip; 10, anti-corrosion fluorine plate; 11, model mark; 12, mounting seat; 13, filter screen frame; 14, mounting stud; 15, mounting nut; 16, mounting hole; 17, annular clamping groove; 18, sealing sleeve; 19, valve plate; 20, rotating shaft; 21, positioning slope plate; 22, sealing groove. DETAILED DESCRIPTION

[0019] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0020] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0021] The technical scheme in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary skilled in the art without creative labor belong to the scope of protection of the present application.

[0022] Please refer to Figures 1-4The utility model discloses a butterfly valve with good anticorrosive and sealing effects, which comprises a valve body 1, and left and right ends of the valve body 1 are fixedly connected with connecting flanges 3.

[0023] A plurality of mounting screw columns 14 are fixedly connected to the inner wall of the mounting seat 12, the left end of each mounting screw column 14 penetrates through the mounting hole 16 and is screw-connected with a mounting nut 15, the filter screen frame 13 can be bolt-mounted and fixed, and the stable use of the filter screen frame 13 is facilitated, the left and right sides of the valve plate 19 are fixedly connected with a group of stable strips 9, the stable strips 9 are made of stainless steel, the stability of the valve plate 19 is improved, and the stable use of the valve plate 19 is facilitated, and the inner wall of the valve body 1 is fixedly connected with two positioning slope plates 21, the two positioning slope plates 21 are respectively located at the left and right sides of the sealing sleeve 18, the sealing sleeve 18 can be positioned, and the safe and stable use of the sealing sleeve 18 is facilitated.

[0024] The front surface of the valve body 1 is fixedly connected with a flow direction mark 2, the flow direction mark 2 is located at the middle of the valve body 1, the direction of water flow can be indicated, the installation operation of the butterfly valve is facilitated, the back surface of the valve body 1 is fixedly connected with a model mark 11, the model mark 11 is located at the middle of the valve body 1, the model of the butterfly valve can be described, and the use of the installation personnel is facilitated.

[0025] The working principle of the utility model is as follows:

[0026] In use, first, the filter screen frame 13 is clamped into the mounting seat 12, and the filter screen frame 13 is mounted and fixed through the mounting screw column 14 and the mounting nut 15, then the sealing gasket 5 is clamped into the sealing groove 22, and the valve body 1 is held, the valve body 1 is sealingly mounted through the connecting flange 3 and the connecting hole 4, in use, the valve rod 7 and the valve plate 19 are swung through the work of the driver 8, the opening and closing of the butterfly valve are realized, at the same time, the contaminated impurities entering the valve body 1 are filtered and removed through the filter screen frame 13, the pollution and abrasion of the valve plate 19 are reduced, the anticorrosive performance of the valve plate 19 as a whole is improved through the anticorrosive fluorine plate 10, and the effective and safe use of the butterfly valve is realized.

[0027] It will be obvious to a person skilled in the art that the application is not limited to the details of the above-described exemplary embodiments, but that the application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments should, therefore, be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalents of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the scope of the claims concerned.

[0028] Furthermore, it should be understood that although the present specification describes exemplary embodiments, the application is not limited to only one independent technical solution in each embodiment, and the specification is described in this way only for the sake of clarity. A person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A butterfly valve having a good corrosion-proof sealing effect, characterized in that: The utility model relates to a valve body (1), left and right ends of the valve body (1) are fixedly connected with the connecting flange (3), a group of connecting holes (4) are set up in the side away from each other of two connecting flanges (3), the side away from each other of two connecting flanges (3) is set up with sealing groove (22), the inner wall of each sealing groove (22) is clamped with sealing washer (5), the inner wall of valve body (1) is set up with annular clamping groove (17), the inner wall of annular clamping groove (17) is clamped with sealing sleeve (18), the inside of valve body (1) is equipped with valve plate (19), the left and right sides of valve plate (19) are fixedly connected with anticorrosive fluorine board (10), the bottom of valve plate (19) is fixedly connected with the rotating shaft (20), the top of valve plate (19) is fixedly connected with valve stem (7), the top of valve stem (7) penetrates valve body (1) and is fixedly connected with driver (8), the outer surface of valve stem (7) is equipped with sealing ring (6), the bottom of sealing ring (6) is clamped with the inner wall of the top of valve body (1), the inner wall of valve body (1) is fixedly connected with mounting seat (12), the inner wall of mounting seat (12) is clamped with filter screen frame (13).

2. The butterfly valve according to claim 1, wherein: The left side of filter screen frame (13) is set up with annular arrangement mounting hole (16), the inner wall of mounting seat (12) is fixedly connected with a group of mounting studs (14), and the left end of each mounting stud (14) penetrates mounting hole (16) and is screw connected with mounting nut (15).

3. The butterfly valve according to claim 1, wherein: The left and right sides of valve plate (19) are fixedly connected with a group of stable strips (9), and the stable strips (9) are made of stainless steel.

4. The butterfly valve with good corrosion resistance and sealing effect according to claim 1, characterized in that: The inner wall of valve body (1) is fixedly connected with two positioning slope plates (21), and the two positioning slope plates (21) are located at the left and right sides of sealing sleeve (18) respectively.

5. The butterfly valve according to claim 1, wherein: The front of valve body (1) is fixedly connected with flow direction mark (2), and the flow direction mark (2) is located at the middle of valve body (1).

6. The butterfly valve of claim 1, wherein: The back of valve body (1) is fixedly connected with model mark (11), and the model mark (11) is located at the middle of valve body (1).

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