Corrosion-resistant eccentric butterfly valve

Abstract

The utility model discloses a corrosion-resistant eccentric butterfly valve which comprises an outer shell, connecting rings are fixedly connected to the surfaces of the two ends of the outer shell, a connecting cylinder is fixedly connected to the upper end of the outer shell, an adjusting plate is rotationally installed in the middle of the interior of the outer shell, and a sealing ring is fixedly connected to the surface of the outer circle of the adjusting plate. A reinforcing column is arranged in the middle of the adjusting plate, a butt joint hole is formed in one end of the reinforcing column, a protective hole is formed in the connecting cylinder, a supporting hole is formed in the protective hole, a connecting rod is rotatably installed in the supporting hole, and the outer surface of the connecting rod is fixedly sleeved with an isolation sleeve; one end of the connecting rod is fixedly connected with a protection head, the protection head is rotationally installed in the protection hole, combined installation and positioning can be achieved, rotating supporting is facilitated, local positions can be isolated and protected, rotating positions are prevented from being corroded, and the device is safe, stable and high in adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of butterfly valve more specifically, relate to a kind of corrosion-resistant eccentric butterfly valve. BACKGROUND

[0002] The valve stem of eccentric butterfly valve passes through valve body and butterfly plate, thereby playing the role of connection, and due to cost consideration, the material of valve body is generally steel or iron, which is not resistant to corrosion stop, and the internal cavity of valve body is generally internally coated to achieve corrosion resistance. For the valve body opening through which the valve stem passes, the coating effect is not ideal. In actual use, the upper and lower openings of the valve body are often corroded by the medium.

[0003] And the utility model discloses a kind of eccentric butterfly valves for preventing internal corrosion, including: valve body, butterfly plate and valve stem, the first valve body opening and the second valve body opening on the valve body are opened on the same axis, the first valve body opening and the second valve body opening are both two through holes opened vertically, the inner wall of the first valve body opening and the second valve body opening is respectively provided with first tubular bushing and second tubular bushing, the first tubular bushing and the second tubular bushing are both corrosion-resistant materials, the utility model discloses a first valve body opening and a second valve body opening are opened on the valve body, and corrosion-resistant first tubular bushing and second tubular bushing are arranged in the first valve body opening and the second valve body opening respectively, so that the medium is isolated from the valve body, to realize the anticorrosion effect of the internal cavity of valve body.

[0004] In the above disclosed structure, the opening connection bushing is arranged to isolate and prevent corrosion, but lacks the adjusting plate and connecting rod for split mounting, which is not conducive to split mounting, and also not conducive to isolating and protecting the rotating support position, which is easy to enter the medium and cause local corrosion, and has poor adaptability, and needs to be improved. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model aims to provide a kind of corrosion-resistant eccentric butterfly valve, by installing adjusting plate in the inside of shell body, combined with reinforcing column and sealing ring, can be installed and opened and closed control by rotation, and by setting protection hole and support hole in the inside of connecting barrel, to install protection head and connecting rod, can be combined and positioned, conducive to rotating support, and can isolate and protect local position, avoid rotating position corrosion, safe and stable, high adaptability.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] The utility model provides an anticorrosion eccentric butterfly valve, including the outer casing, the both ends surface of outer casing is fixedly connected with the connecting ring, the upper end of outer casing is fixedly connected with the connecting barrel, the inside intermediate position of outer casing is rotatably installed with the adjusting board, the outer circle surface of adjusting board is fixedly connected with the sealing ring, the intermediate position of adjusting board is equipped with the reinforcing column, one end of reinforcing column is equipped with the butt joint hole, the inside of protection hole is equipped with the support hole, the inside of support hole is rotatably installed with the connecting rod, the outer surface of connecting rod is fixedly sleeved with the isolating sleeve, one end of connecting rod is fixedly connected with the protection head, the protection head is rotatably installed in the inside of protection hole, the other end of connecting rod is inserted in the inside of butt joint hole, the surface of connecting rod and butt joint hole is equipped with the fixed hole, the inside of fixed hole is screwy installed with butt joint screw.

[0008] Further, one side of the protection head is fixedly connected with a vertical rod, one end of the vertical rod is fixedly connected with a mounting seat.

[0009] Further, the vertical rod is rotatably connected in the inside of the protection hole, and the mounting seat is rotatably installed at the upper end of the connecting barrel.

[0010] Further, the lower surface of the mounting seat is fixedly connected with a flexible protection cylinder, the flexible protection cylinder is sleeved at the upper end opening of the protection hole, the vertical rod and the mounting seat are connected through the protection head, and the flexible protection cylinder can be combined with a handle for operation or controlled by a motor, and can isolate and protect the combined position, thereby improving the use safety.

[0011] Further, the outer surface of the protection head is provided with an annular groove, and the annular groove is located in the inside of the protection hole.

[0012] Further, a sealing ring is clamped in the inside of the annular groove, and the surface of the sealing ring is rotatably connected to the inner wall surface of the protection hole.

[0013] Further, the sealing ring is fixedly sleeved to the outer surface of the protection head, and the sealing ring is connected through the annular groove, so that the installation position can be isolated and protected, leakage is avoided, safety is improved, medium is prevented from entering, and the corrosion resistance is improved.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) The utility model discloses an anticorrosion eccentric butterfly valve, including the outer casing, the both ends surface of outer casing is fixedly connected with the connecting ring, the upper end of outer casing is fixedly connected with the connecting barrel, the inside intermediate position of outer casing is rotatably installed with the adjusting board, the outer circle surface of adjusting board is fixedly connected with the sealing ring, the intermediate position of adjusting board is equipped with the reinforcing column, one end of reinforcing column is equipped with the butt joint hole, the inside of protection hole is equipped with the support hole, the inside of support hole is rotatably installed with the connecting rod, the outer surface of connecting rod is fixedly sleeved with the isolating sleeve, one end of connecting rod is fixedly connected with the protection head, the protection head is rotatably installed in the inside of protection hole, the other end of connecting rod is inserted in the inside of butt joint hole, the surface of connecting rod and butt joint hole is equipped with the fixed hole, the inside of fixed hole is screwy installed with butt joint screw.

[0016] (2) The protective head is connected with the vertical rod and the mounting seat, and combined with the flexible protective cylinder, so that the handle can be combined and installed for operation, or controlled by the motor, and the combined position can be isolated and protected to improve the use safety.

[0017] (3) The annular groove is connected with the sealing ring, so that the installation position can be isolated and protected to avoid leakage, improve safety, avoid medium entering, and improve corrosion resistance. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a plane structure schematic view of the utility model;

[0020] Figure 3 It is a local sectional view of the utility model;

[0021] Figure 4 It is a structure schematic view of the adjusting plate of the utility model;

[0022] Figure 5 It is a structure schematic view of the protective head and the mounting seat connection of the utility model.

[0023] Mark explanation in the drawing:

[0024] 1 outer shell, 11 connecting ring, 12 connecting cylinder, 13 adjusting plate, 14 sealing ring, 15 reinforcing column, 16 butt joint hole, 17 isolation sleeve, 2 protective hole, 21 supporting hole, 22 protective head, 23 connecting rod, 24 fixing hole, 25 butt joint screw, 26 vertical rod, 27 mounting seat, 28 flexible protective cylinder, 3 annular groove, 31 sealing ring. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figure 1 , Figure 4 and Figure 5The utility model provides an anticorrosive eccentric butterfly valve, including the outer casing 1, the both ends surface fixed connection of outer casing 1 has the connecting ring 11, the upper end fixed connection of outer casing 1 has the connecting cylinder 12, the inside intermediate position of outer casing 1 is rotatably installed with the adjusting plate 13, the outer circle surface fixed connection of adjusting plate 13 has the sealing ring 14, can seal with the inner wall of outer casing 1 and carry out sealing, improve the isolation cutting effect, and the end position can be pasted to the surface of connecting rod 23, can seal the protection to the combined position, improve the sealing stability, guarantee the use effect, the intermediate position of adjusting plate 13 is equipped with the reinforcing column 15, and the one end of reinforcing column 15 is equipped with the butt joint hole 16, the inside of protection hole 2 is equipped with the support hole 21, and the inside of support hole 21 is rotatably installed with connecting rod 23, and the outer surface of connecting rod 23 is fixedly sleeved with the isolation sleeve 17, through the sleeve isolation sleeve 17, can the surface of connecting rod 23 is isolated and protected, reduces medium contact, improves the anticorrosion effect, is favorable for combined use, and the one end of connecting rod 23 is fixedly connected with the protection head 22, and the protection head 22 is rotatably installed in the inside of protection hole 2, and the other end of connecting rod 23 is inserted in the inside of butt joint hole 16, and the surface of connecting rod 23 and butt joint hole 16 is equipped with fixed hole 24, and the inside of fixed hole 24 is screw mounted with butt joint screw 25, when using, can be connected to the inside of outer casing 1 adjusting plate 13, and the reinforcing column 15 is aligned to the lower side of connecting cylinder 12, then from the upper end insertion vertical rod 26 and protection head 22, and can be inserted into the inside of support hole 21 connecting rod 23, then insert into butt joint hole 16, then from the side fixed hole 24 screw installation butt joint screw 25, can be locked and fixed, and the split installation positioning is convenient, and it is favorable for assembly, high efficiency and stability, can be rotated and adjusted from the upper end with adjusting plate 13, and it is favorable for control use.

[0027] Please refer to Figure 2 and Figure 3 , the side fixed connection of protection head 22 has vertical rod 26, and the one end of vertical rod 26 is fixedly connected with mounting seat 27, and vertical rod 26 is rotatably connected in the inside of protection hole 2, and mounting seat 27 is rotatably installed on the upper end of connecting cylinder 12, and the lower surface of mounting seat 27 is fixedly connected with flexible protection cylinder 28, and flexible protection cylinder 28 is sleeved on the upper end opening of protection hole 2, through protection head connecting vertical rod and mounting seat, in combination with flexible protection cylinder, can be combined to install handle and operate, also can be controlled by motor, and the combined position can be isolated and protected, improve the use safety.

[0028] Please refer to Figure 2 and Figure 5The outer surface of the protection head 22 is provided with an annular groove 3 which is located inside the protection hole 2, the inside of the annular groove 3 is clamped with a sealing ring 31, the surface of the sealing ring 31 is rotatably connected to the inner wall surface of the protection hole 2, the sealing ring 31 is fixedly sleeved on the outer surface of the protection head 22, the sealing ring is connected through the annular groove, the installation position can be isolated and protected, leakage is avoided, safety is improved, medium is prevented from entering, and corrosion resistance is improved.

[0029] The above is only the preferred specific implementation of the present application; however, the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the improvement concept of the present application, should be covered in the protection scope of the present application, within the technical range disclosed by the present application.

Claims

1. A corrosion-resistant eccentric butterfly valve, comprising an outer shell (1), the outer shell (1) is fixedly connected with a connecting ring (11) on both ends of the surface, the upper end of the outer shell (1) is fixedly connected with a connecting cylinder (12), characterized in that: The inside middle position of the shell body (1) is rotatably installed with an adjusting plate (13), the outer circular surface of the adjusting plate (13) is fixedly connected with a sealing ring (14), the middle position of the adjusting plate (13) is provided with a reinforcing column (15), one end of the reinforcing column (15) is provided with a butt joint hole (16), the inside of the connecting cylinder (12) is provided with a protection hole (2), the inside of the protection hole (2) is provided with a supporting hole (21), the inside of the supporting hole (21) is rotatably installed with a connecting rod (23), the outer surface of the connecting rod (23) is fixedly sleeved with an isolation sleeve (17), one end of the connecting rod (23) is fixedly connected with a protection head (22), the protection head (22) is rotatably installed in the inside of the protection hole (2), the other end of the connecting rod (23) is inserted into the inside of the butt joint hole (16), the surfaces of the connecting rod (23) and the butt joint hole (16) are both provided with a fixing hole (24), the inside of the fixing hole (24) is screwedly installed with a butt joint screw (25).

2. The corrosion resistant eccentric butterfly valve according to claim 1, wherein: One side of the protection head (22) is fixedly connected with a vertical rod (26), one end of the vertical rod (26) is fixedly connected with a mounting seat (27).

3. The corrosion resistant eccentric butterfly valve according to claim 2, wherein: The vertical rod (26) is rotatably connected in the inside of the protection hole (2), and the mounting seat (27) is rotatably installed at the upper end of the connecting cylinder (12).

4. The corrosion resistant eccentric butterfly valve according to claim 3, wherein: The lower surface of the mounting seat (27) is fixedly connected with a flexible protection cylinder (28), and the flexible protection cylinder (28) is sleeved at the upper end opening of the protection hole (2).

5. The corrosion resistant eccentric butterfly valve according to claim 1, wherein: The outer surface of the protection head (22) is provided with an annular groove (3), and the annular groove (3) is located in the inside of the protection hole (2).

6. The corrosion resistant eccentric butterfly valve according to claim 5, wherein: The inside of the annular groove (3) is clamped with a sealing ring (31), and the surface of the sealing ring (31) is rotatably connected with the inner wall surface of the protection hole (2).

7. The corrosion resistant eccentric butterfly valve according to claim 6, characterized in that: The sealing ring (31) is fixedly sleeved on the outer surface of the protection head (22).

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