Anti-dirt electric butterfly valve

Abstract

The utility model discloses an anti-dirt electric butterfly valve in the technical field of butterfly valve equipment, which comprises a valve body, an actuator, an electromagnet and a connecting frame, a sealing ring is embedded on the inner side wall of the valve body, butterfly plates are distributed in the sealing ring, and the actuator is fixed on the outer side wall of the valve body through a bolt; the anti-dirt electric butterfly valve is reasonable in arrangement and structural design, an electromagnet, a connecting frame and a magnet are installed in the valve body, when the butterfly plate is controlled by an actuator to rotate so as to open an inner cavity of the valve body, a baffle ring makes contact with the inner side wall of a sealing ring, the inner side wall of the sealing ring can be shielded in the fluid flowing process, and therefore the sealing effect is improved. And fluid substances are prevented from flowing in the valve body for a long time and being attached to the inner side wall of the sealing ring, so that the inner side wall of the sealing ring can be effectively shielded, and the fluid substances are prevented from being attached to the inner side wall of the sealing ring and affecting the sealing effect on the inner cavity of the valve body after the butterfly plate is closed.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valve equipment, in particular to an anti-fouling electric butterfly valve. Background Technique

[0002] The butterfly valve, also called a flap valve, is a simple-structured regulating valve. The butterfly valve that can be used for the on-off control of the medium in a low-pressure pipeline refers to a valve whose closing member (valve flap or butterfly plate) is a disc and rotates around the valve shaft to achieve opening and closing. The valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media. It mainly plays a role of cutting off and throttling in the pipeline. The opening and closing member of the butterfly valve is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve the purpose of opening, closing or adjusting.

[0003] When the existing butterfly valve is in use after being opened, the disc and the sealing ring are separated. After the fluid flows for a long time, it will adhere to the inner side wall of the sealing ring, which will affect the sealing performance between the disc and the sealing ring. Therefore, new technical solutions need to be designed to solve this problem. Content of the Utility Model

[0004] The purpose of the utility model is to provide an anti-fouling electric butterfly valve to solve the problem that when the butterfly valve is in use after being opened, the disc and the sealing ring are separated, and after the fluid flows for a long time, it will adhere to the inner side wall of the sealing ring, which will affect the sealing performance between the disc and the sealing ring as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an anti-fouling electric butterfly valve, including a valve body, an actuator, an electromagnet and a connecting frame. The inner side wall of the valve body is inlaid with a sealing ring. A disc is distributed inside the sealing ring. The actuator is fixed to the outer side wall of the valve body by bolts. The disc is connected to the inside of the actuator through a drive shaft. The electromagnet is connected to the inner side wall of the valve body through a cross plate. The connecting frame is located in the middle of the disc and the cross plate. The connecting frame is connected to the cross plate through a spring. A magnet is inserted into the inside of the connecting frame. A connecting rod is welded to the end of the connecting frame. The connecting rod is attached to the inner side wall of the valve body. A retaining ring is welded to the end of the connecting rod. The retaining ring can be in sliding contact with the inner side wall of the sealing ring.

[0006] In order to control the movement track of the connecting frame, as an optimal choice of the anti-fouling electric butterfly valve of the utility model, two symmetrically distributed guide rods are welded to the side of the connecting frame close to the cross plate, and the guide rods penetrate through the inside of the cross plate.

[0007] In order to improve the connection stability between the electromagnet and the cross plate, as an optimization of the anti-fouling electric butterfly valve of the present utility model, a first mounting frame is respectively distributed at both ends of the electromagnet. The first mounting frame is of a U-shaped structure, and the end of the first mounting frame is connected to the cross plate by bolts.

[0008] In order to enable the connecting rod to always closely move along the inner side wall of the valve body, as an optimization of the anti-fouling electric butterfly valve of the present utility model, a clamping block is fixed to the inner side wall of the valve body by bolts, and the clamping block can be clamped outside the connecting rod.

[0009] In order to assist in pulling the connecting frame, as an optimization of the anti-fouling electric butterfly valve of the present utility model, there are two symmetrically distributed elastic ropes between the connecting frame and the cross plate. The two ends of the elastic rope are respectively fixed to the connecting frame and the cross plate by bolts.

[0010] In order to improve the installation stability between the magnet and the connecting frame, as an optimization of the anti-fouling electric butterfly valve of the present utility model, a second mounting frame is respectively distributed at both ends of the magnet. The end of the second mounting frame is connected to the connecting frame by bolts.

[0011] In order to reduce the resistance of fluid flow, as an optimization of the anti-fouling electric butterfly valve of the present utility model, the sides of the connecting frame and the cross plate close to the disc plate are arc-shaped surfaces.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The anti-fouling electric butterfly valve is provided with a reasonable structural design. By installing an electromagnet, a connecting frame and a magnet inside the valve body, when the disc plate is controlled by the actuator to rotate to open the inner cavity of the valve body, after the electromagnet is energized, the end parts of the electromagnet and the magnet close to each other have the same magnetic poles. Then the magnet is repelled to push the connecting frame to move towards the disc plate direction, so that the retaining ring contacts the inner side wall of the sealing ring, and can block the inner side wall of the sealing ring during the fluid flow process, preventing fluid substances from flowing inside the valve body for a long time and adhering to the inner side wall of the sealing ring. Thus, it can effectively block the inner side wall of the sealing ring and prevent fluid substances from adhering to the inner side wall of the sealing ring and affecting the sealing effect of the inner cavity of the valve body after the disc plate is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 It is an internal structural schematic diagram of the present utility model;

[0015] Figure 3 It is a structural schematic diagram of the connecting frame of the present utility model.

[0016] In the figure: 1. Valve body; 11. Sealing ring; 12. Horizontal plate; 13. Clamping block; 2. Actuator; 21. Disc plate; 3. Electromagnet; 31. First mounting frame; 4. Spring; 5. Connecting frame; 51. Retaining ring; 52. Elastic cord; 53. Guide rod; 54. Connecting rod; 6. Magnet; 61. Second mounting frame. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1-3 , the present invention provides a technical solution:

[0019] In this technical solution, an anti-fouling electric butterfly valve includes a valve body 1, an actuator 2, an electromagnet 3 and a connecting frame 5. A sealing ring 11 is embedded in the inner side wall of the valve body 1, and a disc plate 21 is distributed inside the sealing ring 11. The actuator 2 is fixed to the outer side wall of the valve body 1 by bolts, and the disc plate 21 is connected to the inside of the actuator 2 through a drive shaft. The electromagnet 3 is connected to the inner side wall of the valve body 1 through a horizontal plate 12. The connecting frame 5 is located between the disc plate 21 and the horizontal plate 12. The connecting frame 5 is connected to the horizontal plate 12 through a spring 4. A magnet 6 is inserted into the connecting frame 5. A connecting rod 54 is welded to the end of the connecting frame 5. The connecting rod 54 is attached to the inner side wall of the valve body 1. A retaining ring 51 is welded to the end of the connecting rod 54. The retaining ring 51 can slidably contact the inner side wall of the sealing ring 11;

[0020] In this technical solution, the valve body 1, the actuator 2, the sealing ring 11 and the disc plate 21 form a butterfly valve body. The two flanges of the valve body 1 are respectively connected to the external pipelines. In the initial state, the retaining ring 51 is away from the disc plate 21, and the magnet 6 is close to the end of the electromagnet 3. When the actuator 2 drives the disc plate 21 to rotate, the inner cavity of the valve body 1 is in an open state at this time, then the power supply of the electromagnet 3 is turned on, and the electromagnet 3 generates magnetism and repels the magnet 6. At this time, the magnet 6 and the connecting frame 5 move synchronously towards the disc plate 21. When the connecting frame 5 moves, it pushes the connecting rod 54 and the retaining ring 51 to move, so that the retaining ring 51 contacts the inner side wall of the sealing ring 11, which can protect the inner side wall of the sealing ring 11 and prevent fluid substances from adhering to the inner side wall of the sealing ring 11. When it is necessary to close the inner cavity of the valve body 1, the power supply of the electromagnet 3 is disconnected at this time, so that the electromagnet 3 loses magnetism. While the spring 4 resets, it pulls the connecting frame 5 towards the horizontal plate 12, so that the retaining ring 51 is separated from the sealing ring 11. Operating the actuator 2 to drive the disc plate 21 to rotate in the reverse direction can complete the closing of the inside of the valve body 1.

[0021] In some technical solutions, referring to Figures 2-3 , on one side of the connecting frame 5 close to the cross plate 12, two symmetrically distributed guide rods 53 are welded. The guide rods 53 penetrate through the inside of the cross plate 12. The use of the guide rods 53 can limit the movement track of the connecting frame 5, enabling the connecting frame 5 to move horizontally without rotation, so as to ensure that the retaining ring 51 can block the inner side wall of the sealing ring 11.

[0022] In some technical solutions, referring to Figure 3 , at both ends of the electromagnet 3, a first mounting frame 31 is respectively distributed. The first mounting frame 31 is of a U-shaped structure, and the end of the first mounting frame 31 is connected to the cross plate 12 by bolts. The use of the first mounting frame 31 can provide stability for the installation of the electromagnet 3 and prevent the electromagnet 3 from separating from the cross plate 12.

[0023] In some technical solutions, referring to Figures 2-3 , on the inner side wall of the valve body 1, a clamping block 13 is fixed by bolts. The clamping block 13 can be clamped outside the connecting rod 54. The use of the clamping block 13 can limit the movement of the connecting rod 54 so that it can only slide along the inner side wall of the valve body 1, enabling the retaining ring 51 to accurately dock with the sealing ring 11.

[0024] In some technical solutions, referring to Figures 2-3 , between the connecting frame 5 and the cross plate 12, two symmetrically distributed elastic ropes 52 are provided. Both ends of the elastic ropes 52 are respectively fixed to the connecting frame 5 and the cross plate 12 by bolts. The use of the elastic ropes 52 can cooperate with the spring 4 to play a role in assisting the pulling of the connecting frame 5.

[0025] In some technical solutions, referring to Figure 3 , at both ends of the magnet 6, a second mounting frame 61 is respectively distributed. The end of the second mounting frame 61 is connected to the connecting frame 5 by bolts. The use of the second mounting frame 61 can provide stability for the installation of the magnet 6, enabling the magnet 6 to be firmly installed with the connecting frame 5.

[0026] In some technical solutions, referring to Figures 2-3 , the sides of the connecting frame 5 and the cross plate 12 close to the disc 21 are arc-shaped surfaces, which can reduce the resistance when the fluid flows, enabling the fluid to flow smoothly in the inner cavity of the valve body 1.

[0027] Working principle: In the initial state, the retaining ring 51 is away from the disc 21, and the magnet 6 is close to the end of the electromagnet 3. When the actuator 2 drives the disc 21 to rotate, the inner cavity of the valve body 1 is in an open state at this time, then the power supply of the electromagnet 3 is turned on. The electromagnet 3 generates magnetism and repels the magnet 6. At this time, the spring 4 is stretched, and the magnet 6 and the connecting frame 5 move closer to the disc 21 synchronously. When the connecting frame 5 moves, it pushes the connecting rod 54 and the retaining ring 51 to move, so that the retaining ring 51 contacts the inner side wall of the sealing ring 11, which can complete the protection of the inner side wall of the sealing ring 11 and prevent fluid substances from sticking to the inner side wall of the sealing ring 11. When it is necessary to close the inner cavity of the valve body 1, the power supply of the electromagnet 3 is disconnected at this time, so that the electromagnet 3 loses magnetism. While the spring 4 resets, it pulls the connecting frame 5 towards the cross plate 12, so that the retaining ring 51 is separated from the sealing ring 11. Operating the actuator 2 to drive the disc 21 to rotate in the reverse direction can complete the closing of the valve body 1.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0029] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention can be combined with each other in any way. The reason for not exhaustively describing the situations of these combinations in this specification is only to save space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An anti-fouling electric butterfly valve, characterized in that: The invention comprises a valve body (1), an actuator (2), an electromagnet (3) and a connection frame (5), wherein the inner wall of the valve body (1) is inlaid with a sealing ring (11), a disc plate (21) is distributed inside the sealing ring (11), the actuator (2) is fixed to the outer wall of the valve body (1) by bolts, the disc plate (21) is connected to the inside of the actuator (2) by a driving shaft, the electromagnet (3) is connected to the inner wall of the valve body (1) by a transverse plate (12), and the connection frame (5) is connected to the inner wall of the valve body (1) by a transverse plate (12). ) is located in the middle of the disc plate (21) and the cross plate (12), the connecting frame (5) is connected to the cross plate (12) via a spring (4), a magnet (6) is inserted into the interior of the connecting frame (5), a connecting rod (54) is welded to the end of the connecting frame (5), the connecting rod (54) is attached to the inner wall of the valve body (1), a retaining ring (51) is welded to the end of the connecting rod (54), and the retaining ring (51) can be in sliding contact with the inner wall of the sealing ring (11).

2. The anti-fouling electric butterfly valve according to claim 1, characterized in that: Two symmetrically distributed guide rods (53) are welded to one side of the connection frame (5) close to the transverse plate (12), and the guide rods (53) penetrate the interior of the transverse plate (12).

3. The anti-fouling electric butterfly valve according to claim 1, characterized in that: A first installation frame (31) is respectively distributed at both ends of the electromagnet (3); the first installation frame (31) is a U-shaped structure; the ends of the first installation frame (31) are connected to the transverse plate (12) via bolts.

4. The anti-fouling electric butterfly valve according to claim 1, characterized in that: A clamping block (13) is fixed to the inner wall of the valve body (1) by means of bolts, and the clamping block (13) can be clamped on the outside of the connecting rod (54).

5. The anti-fouling electric butterfly valve according to claim 1, characterized in that: There are two symmetrically distributed elastic ropes (52) between the connection frame (5) and the transverse plate (12), and two ends of the elastic ropes (52) are respectively fixed to the connection frame (5) and the transverse plate (12) by bolts.

6. The anti-fouling electric butterfly valve according to claim 1, characterized in that: A second installation frame (61) is respectively distributed at both ends of the magnet (6), and the ends of the second installation frame (61) are connected to the connection frame (5) via bolts.

7. The anti-fouling electric butterfly valve according to claim 1, characterized in that: The side of the connection frame (5) and the transverse plate (12) close to the disc plate (21) is an arc-shaped surface.

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