Large-diameter super duplex stainless steel butterfly valve body

Abstract

The utility model discloses a large-diameter super duplex stainless steel butterfly valve body, relates to the technical field of butterfly valves, and solves the problems that laminated plates of a butterfly valve are mounted on two sides of a valve shaft, after the butterfly valve is closed, pressure generated by internal liquid extrudes the laminated plates on two sides of the valve shaft, and the butterfly plate is deformed under long-time extrusion, so that the butterfly valve is damaged. The butterfly valve comprises a valve pipe and a supporting plate, a butterfly plate is slidably connected into the valve pipe, a mounting hole is formed in the side wall of the front end of the butterfly plate, a mounting groove is formed in the mounting hole, and the supporting plate is slidably connected into the mounting groove. Through the cooperation between the supporting plate and the tensioning spring, when the butterfly plate is in contact with water, even if the water extrudes the butterfly plate, the pressure of the water can be effectively buffered through the supporting force of the tensioning spring, and the butterfly plate can be conveniently protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of butterfly valve, concretely is a kind of large-diameter super duplex stainless steel butterfly valve body. BACKGROUND

[0002] Large-diameter super duplex stainless steel butterfly valve body is a valve component for controlling fluid flow, pressure and direction in pipeline, usually made of super duplex stainless steel material, with special structure and performance characteristics.

[0003] Through search, the patent of China patent publication number CN210318710U discloses a kind of super duplex stainless steel 5A material butterfly valve body, including valve body, the front and rear ends of valve body are fixedly installed with flange, the top of valve body is installed with valve rod seat, valve rod seat is connected with valve rod in inside, fixed support is installed on valve rod seat, the inside of valve body is provided with the fluid passage of penetration, the inside of fluid passage is provided with valve shaft, the inside of valve rod seat is installed with sleeve, the bottom of valve body is fixedly installed with the valve shaft seat corresponding with valve shaft, the inside of valve shaft seat is fixedly installed with the lower sleeve matched with valve shaft, valve shaft is rotatably connected with lower sleeve, butterfly plate is fixedly installed on valve shaft.The utility model has strong practicability, and is worth promoting.

[0004] But the laminated plate of the butterfly valve is installed on the two sides of valve shaft, when the butterfly valve is closed, the pressure generated by internal liquid will extrude the laminated plate on the two sides of valve shaft, under long-time extrusion, disc plate will be deformed, risk occurs inside, and the use efficiency of the disc valve is reduced. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides a kind of large-diameter super duplex stainless steel butterfly valve body, solve the laminated plate of butterfly valve and install on the two sides of valve shaft, when the butterfly valve is closed, the pressure generated by internal liquid will extrude the laminated plate on the two sides of valve shaft, under long-time extrusion, disc plate will be deformed, risk occurs inside, and the use efficiency of the disc valve is reduced.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of large-diameter super duplex stainless steel butterfly valve body, including valve pipe and support plate, the inside of valve pipe is slidably connected with disc plate, the inside of the front end side wall of disc plate is provided with mounting hole, the inside of mounting hole is provided with installation groove, the inside of installation groove is slidably connected with support plate, a plurality of tension springs are fixedly installed with equal spacing between the side wall of support plate and installation groove.

[0007] Preferably, the diameter of the support plate is matched with the diameter of the installation groove, and the diameter of the mounting hole is smaller than the inside diameter of the mounting hole, so as to prevent the position of the support plate from moving to the outside of the valve pipe.

[0008] Preferably, the outer side wall of the support plate is fixedly sleeved with a sealing ring, which is matched with the inner side wall of the mounting groove, so that water flow can be prevented from entering the inside of the mounting groove.

[0009] Preferably, the side wall of the support plate is fixedly mounted with a plurality of wedge-shaped blocks at equal intervals, and the sharp end of the wedge-shaped block faces the truncated surface of the water flow, so that the contact area of the support plate with the water flow can be reduced.

[0010] Preferably, the inside of the valve pipe is rotatably connected with a driving rod, the disc plate is fixedly sleeved on the outside of the driving rod, and the driving rod is arranged at the rear end of the mounting groove, so that the pressure of the water flow can be prevented from damaging the two sides of the disc plate, and the support strength of the disc plate is increased.

[0011] Preferably, the length of the wedge-shaped block is equal to the width of the cross section of the corresponding position in the support plate, so that the position of the wedge-shaped block can be prevented from affecting the movement of the support plate.

[0012] The utility model provides a kind of large-caliber super duplex stainless steel butterfly valve body.It has the following beneficial effects:

[0013] 1, the large-caliber super duplex stainless steel butterfly valve body, when using large-caliber super duplex stainless steel butterfly valve body, the cooperation between the support plate and the tension spring being set, can make disc plate water contact, even if water is extruded to disc plate, by the support force of tension spring, the pressure of water can be effectively buffered, disc plate is protected conveniently;

[0014] 2, the large-caliber super duplex stainless steel butterfly valve body, when using large-caliber super duplex stainless steel butterfly valve body, by the wedge-shaped block of the side wall of support plate being installed at equal intervals, water can be prevented from being completely extruded to the surface of support plate, and the protection work of disc plate can be strengthened. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0016] Fig. 2 It is the disc plate structure schematic diagram of the utility model;

[0017] Fig. 3 It is the disc plate and support plate exploded structure schematic diagram of the utility model.

[0018] In the drawing, 1, valve pipe;2, driving rod;3, disc plate;4, wedge-shaped block;5, mounting hole;6, mounting groove;7, tension spring;8, support plate;9, sealing ring. DETAILED DESCRIPTION

[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figs. 1-3 The utility model discloses a large aperture super duplex stainless steel butterfly valve body, including valve pipe 1 and support plate 8, the inside sliding connection of valve pipe 1 has dish plate 3, the inside of dish plate 3's front end side wall is provided with mounting hole 5, the inside of mounting hole 5 is provided with mounting groove 6, and support plate 8 is connected in the inside of mounting groove 6, a plurality of tension springs 7 are fixedly installed between the side wall of support plate 8 and mounting groove 6 at equal intervals, the diameter size of support plate 8 matches the diameter size of mounting groove 6, the diameter size of mounting hole 5 is less than the inside diameter of mounting hole 5, the outside side wall of support plate 8 is fixedly sleeved with sealing ring 9, sealing ring 9 and the inside side wall of mounting groove 6 mutually adhere, a plurality of wedge blocks 4 are fixedly installed at equal intervals on the side wall of support plate 8, and the sharp end of wedge block 4 faces the truncated surface of water flow, the inside rotation of valve pipe 1 is connected with drive rod 2, dish plate 3 is fixedly sleeved on the outside of drive rod 2, and drive rod 2 is arranged at the rear end of mounting groove 6, the length of wedge block 4 is equal to the width size of the cross section of the corresponding position in support plate 8 respectively, when the butterfly valve body is made, when dish plate 3 is closed, drive rod drives dish plate to rotate, until the inside of valve pipe 1 is sealed, and one side of support plate 8 is arranged with the side of the truncated water flow, water flow extrudes support plate 8, cooperating with the cooperation between tension spring 7 and wedge block 4, can effectively protect dish plate, reduce the pressure generated by water flow to support plate 8.

[0021] It should be noted that, in the embodiment, as Figs. 1-3 shown, when the butterfly valve body is made, when dish plate 3 is closed, drive rod drives dish plate to rotate, until the inside of valve pipe 1 is sealed, and one side of support plate 8 is arranged with the side of the truncated water flow, water flow extrudes support plate 8, cooperating with the cooperation between tension spring 7 and wedge block 4, can effectively protect dish plate, reduce the pressure generated by water flow to support plate 8.

[0022] The basic principle and main features of the present application and the advantages of the present application are shown and described above, for those skilled in the art, obviously the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0023] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those 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 those skilled in the art can understand.

Claims

1. A large bore super duplex stainless steel butterfly valve body characterized in that: The utility model relates to a valve pipe (1) and support plate (8) are included, the disc plate (3) is slidably connected in the valve pipe (1), the front end side wall of disc plate (3) is provided with mounting hole (5) inside, the inside of mounting hole (5) is provided with mounting groove (6), support plate (8) is slidably connected in the inside of mounting groove (6), a plurality of tension springs (7) are fixedly installed between the side wall of support plate (8) and mounting groove (6) with equal interval.

2. The large diameter super duplex stainless steel butterfly valve body as claimed in claim 1, wherein: The diameter of the support plate (8) matches the diameter of the mounting groove (6), and the diameter of the mounting hole (5) is smaller than the inside diameter of the mounting hole (5).

3. The large diameter super duplex stainless steel butterfly valve body as claimed in claim 1, wherein: The outer side wall of the support plate (8) is fixedly sleeved with a sealing ring (9), and the sealing ring (9) and the inner side wall of the mounting groove (6) are mutually attached.

4. The large diameter super duplex stainless steel butterfly valve body as claimed in claim 1, wherein: The side wall of the support plate (8) is fixedly installed with a plurality of wedge blocks (4) with equal interval, and the sharp end of the wedge block (4) faces the truncated surface of the water flow.

5. The large diameter super duplex stainless steel butterfly valve body as claimed in claim 1, wherein: The inside of the valve pipe (1) is rotatably connected with a driving rod (2), the disc plate (3) is fixedly sleeved on the outside of the driving rod (2), and the driving rod (2) is arranged at the rear end of the mounting groove (6).

6. The large diameter super duplex stainless steel butterfly valve body as claimed in claim 4 wherein: The length of the wedge block (4) is equal to the width of the corresponding position of the support plate (8).

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