Butterfly valve with fluid guidance

Abstract

The utility model provides a butterfly valve with fluid guide relates to butterfly valve with fluid guide technical field, including butterfly valve shell, the inner wall fixedly connected with sealing washer of butterfly valve shell is equipped with butterfly plate in the inner wall of sealing washer, the outer surface of butterfly plate is equipped with the recess, the outer surface fixedly connected with fixed block of butterfly plate, the outer surface fixedly connected with fixed link of fixed block, the outer surface bushing of fixed link is connected with the rotary rod, the inner wall fixedly connected with torsional spring of rotary rod, the outer surface fixedly connected with the flow guide piece of rotary rod. The utility model, through the rotary rod's rotation drives the flow guide piece to rotate, guarantees that the flow guide piece can normally carry out the flow guiding work, during the butterfly plate opening period, through torsional spring drives rotary rod to rotate around fixed link, through the rotary rod's rotation drives the flow guide piece to rotate, thereby makes the flow guide piece perpendicular to butterfly plate, thereby carries out the flow guiding work to the water flow.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology with fluid guidance, and in particular to a butterfly valve with fluid guidance. Background Technology

[0002] Butterfly valves, as a common fluid control device, are widely used in petroleum, chemical, water conservancy, power and other fields, and are mainly used for cutting off or regulating the flow of media in pipelines.

[0003] Existing conventional butterfly valves still generate significant resistance to the fluid when open, especially in large-diameter or high-flow-rate conditions, which can easily lead to turbulence and pressure drop, resulting in increased system energy consumption. Traditional butterfly valves typically exhibit quick-opening characteristics, with drastic flow changes at small openings, making precise adjustment difficult and affecting the stability of process control. While eccentric butterfly valves improve sealing performance, their guiding effect on the fluid is limited, making it impossible to dynamically adapt to changes in the flow field at different openings. Furthermore, fixed flow guiding structures (such as flow guiding ribs on the inner wall of the valve body) can reduce eddies, but they cannot be adjusted according to operating conditions, resulting in insufficient flexibility. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies in terms of limited fluid guiding effect, and to provide a butterfly valve with fluid guiding function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a butterfly valve with fluid guidance, comprising a butterfly valve housing, a sealing gasket fixedly connected to the inner wall of the butterfly valve housing, a butterfly plate provided on the inner wall of the sealing gasket, a groove formed on the outer surface of the butterfly plate, a fixing block fixedly connected to the outer surface of the butterfly plate, a fixing rod fixedly connected to the outer surface of the fixing block, a rotating rod sleeved on the outer surface of the fixing rod, a torsion spring fixedly connected to the inner wall of the rotating rod, and a flow guide plate fixedly connected to the outer surface of the rotating rod.

[0006] In a preferred embodiment, the outer surface of the guide plate is provided with a guide groove, one side of the guide plate is provided with an arc-shaped surface, the outer surface of the sealing gasket is fixedly connected with a limit plate, the outer surface of the butterfly plate is fixedly connected with a support rod, one end of the support rod is provided with a slot, and the inner wall of the slot is fitted with a silicone pad.

[0007] In a preferred embodiment, one end of the silicone pad is engaged with the inner wall of the slot, and the outer surface of the limiting plate is attached to one side of the guide plate.

[0008] In a preferred embodiment, the outer surface of the rotating rod is provided with a through hole, and the outer surface of the fixed rod is rotatably connected to the inner wall of the through hole.

[0009] In a preferred embodiment, the inner wall of the groove is in contact with one side of the guide vane.

[0010] In a preferred embodiment, the outer surface of the butterfly plate is engaged with the inner wall of the sealing gasket.

[0011] In a preferred embodiment, the inner wall of the rotating rod is provided with an arc-shaped groove, the torsion spring is placed inside the arc-shaped groove, and the two ends of the torsion spring are fixedly connected to the inner wall of the arc-shaped groove.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] This invention provides an installation environment for other components through the butterfly valve housing, an installation environment for the limiting plate through the sealing gasket, and ensures normal flow guidance through the butterfly plate. The groove fits against one side of the guide plate, allowing the guide plate to adhere properly to the butterfly plate surface when it is closed. A fixing block prevents the fixing rod from falling off. The fixing rod is rotatably connected to the rotating rod, ensuring its normal rotation. The rotation of the rotating rod drives the guide plate to rotate, ensuring its proper flow guidance. When the butterfly plate is open, a torsion spring drives the rotating rod to rotate around the fixing rod, which in turn drives the guide plate to rotate, making the guide plate perpendicular to the butterfly plate, thus guiding the water flow. Attached Figure Description

[0014] Figure 1 A perspective view of a butterfly valve with fluid guidance provided by this utility model.

[0015] Figure 2 A side view of the butterfly plate of a butterfly valve with fluid guidance provided by this utility model.

[0016] Figure 3 A perspective view of the guide vane of a butterfly valve with fluid guidance provided by this utility model.

[0017] Figure 4 A perspective view of the support rod of a butterfly valve with fluid guidance provided by this utility model.

[0018] Legend:

[0019] 1. Butterfly valve housing; 2. Sealing gasket; 3. Butterfly plate; 4. Groove; 5. Fixing block; 6. Support rod; 7. Rotating rod; 8. Guide vane; 9. Arc-shaped surface; 10. Fixing rod; 11. Torsion spring; 12. Guide groove; 13. Slot; 14. Silicone pad; 15. Limiting plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] like Figures 1-4 As shown, this utility model provides a technical solution: a butterfly valve with fluid guidance, including a butterfly valve housing 1, a sealing gasket 2 fixedly connected to the inner wall of the butterfly valve housing 1, a butterfly plate 3 provided on the inner wall of the sealing gasket 2, a groove 4 opened on the outer surface of the butterfly plate 3, a fixing block 5 fixedly connected to the outer surface of the butterfly plate 3, a fixing rod 10 fixedly connected to the outer surface of the fixing block 5, a rotating rod 7 sleeved on the outer surface of the fixing rod 10, a torsion spring 11 fixedly connected to the inner wall of the rotating rod 7, and a guide plate 8 fixedly connected to the outer surface of the rotating rod 7.

[0023] In this embodiment, the butterfly valve housing 1 provides an installation environment for other components, the sealing gasket 2 provides an installation environment for the limiting plate 15, the butterfly plate 3 ensures normal flow guidance, the groove 4 fits against one side of the guide plate 8 so that the guide plate 8 can fit normally against the surface of the butterfly plate 3 when the butterfly plate 3 is closed, the fixing block 5 ensures that the fixing rod 10 will not fall off, the fixing rod 10 is rotatably connected to the rotating rod 7 to ensure that the rotating rod 7 can rotate normally, the rotation of the rotating rod 7 drives the guide plate 8 to rotate, ensuring that the guide plate 8 can perform normal flow guidance, when the butterfly plate 3 is open, the torsion spring 11 drives the rotating rod 7 to rotate around the fixing rod 10, the rotation of the rotating rod 7 drives the guide plate 8 to rotate, so that the guide plate 8 is perpendicular to the butterfly plate 3, thereby guiding the water flow.

[0024] Example 2

[0025] like Figures 1-4 As shown, a guide groove 12 is provided on the outer surface of the guide plate 8, and an arc-shaped surface 9 is provided on one side of the guide plate 8. A limiting plate 15 is fixedly connected to the outer surface of the sealing gasket 2, and a support rod 6 is fixedly connected to the outer surface of the butterfly plate 3. A slot 13 is provided at one end of the support rod 6, and a silicone pad 14 is fitted into the inner wall of the slot 13. One end of the silicone pad 14 is engaged with the inner wall of the slot 13, and the outer surface of the limiting plate 15 is in contact with one side of the guide plate 8.

[0026] In this embodiment, by opening a flow groove 12 on the outer surface of the flow guide plate 8, the wear of the water flow on the butterfly plate 3 is reduced. The arc-shaped surface 9 improves the diversion effect of the water flow, thereby reducing the impact of the water flow on the flow guide plate 8. The support rod 6 provides support for the flow guide plate 8, ensuring that the flow guide plate 8 does not rotate too much when the torsion spring 11 drives it to rotate. The silicone pad 14 provides a buffer for the flow guide plate 8, ensuring that the support rod 6 does not damage the surface of the flow guide plate 8 when the torsion spring 11 rotates. When the butterfly plate 3 is closed by the limiting plate 15, one side of the flow guide plate 8 will contact the limiting plate 15. Through the rotation of the butterfly plate 3, the limiting plate 15 completes the limiting of the flow guide plate 8, so that the flow guide plate 8 will not open during the closing period.

[0027] Working principle:

[0028] like Figures 1-4 As shown, when using a butterfly valve to guide water flow, the rotating shaft drives the butterfly plate 3 to rotate inside the butterfly valve housing 1, separating the butterfly plate 3 from the sealing gasket 2, thus ensuring normal water flow. The fixing block 5 ensures that the fixing rod 10 will not fall off. The fixing rod 10 is rotatably connected to the rotating rod 7, ensuring that the rotating rod 7 can rotate normally. The rotation of the rotating rod 7 drives the guide vane 8 to rotate, ensuring that the guide vane 8 can guide the water flow normally. When the butterfly plate 3 is open, the torsion spring 11 drives the rotating rod 7 to rotate around the fixing rod 10. The rotation of the rotating rod 7 drives the guide vane 8 to rotate, making the guide vane 8 perpendicular to the butterfly plate 3, thus guiding the water flow. The guide vane 8 is positioned perpendicular to the butterfly plate 3 by opening a hole on its outer surface. The guide groove 12 reduces the wear of the water flow on the butterfly plate 3. The arc surface 9 improves the diversion effect of the water flow, thereby reducing the impact of the water flow on the guide plate 8. The support rod 6 supports the guide plate 8 to ensure that the guide plate 8 does not rotate too much when the torsion spring 11 drives the guide plate 8 to rotate. The silicone pad 14 provides a buffer for the guide plate 8 to ensure that the support rod 6 does not damage the surface of the guide plate 8 when the torsion spring 11 rotates. When the butterfly plate 3 is closed by the limiting plate 15, one side of the guide plate 8 will contact the limiting plate 15, and the other side of the guide plate 8 will be stored in the interior of the groove 4. Then, by the rotation of the butterfly plate 3, the limiting plate 15 completes the limiting of the guide plate 8, so that the guide plate 8 will not open during the closing period.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fluid-guided butterfly valve, comprising a butterfly valve housing (1), characterized in that: A sealing gasket (2) is fixedly connected to the inner wall of the butterfly valve housing (1). A butterfly plate (3) is provided on the inner wall of the sealing gasket (2). A groove (4) is provided on the outer surface of the butterfly plate (3). A fixing block (5) is fixedly connected to the outer surface of the butterfly plate (3). A fixing rod (10) is fixedly connected to the outer surface of the fixing block (5). A rotating rod (7) is sleeved on the outer surface of the fixing rod (10). A torsion spring (11) is fixedly connected to the inner wall of the rotating rod (7). A guide plate (8) is fixedly connected to the outer surface of the rotating rod (7).

2. A butterfly valve with fluid guidance according to claim 1, characterized in that: The outer surface of the guide plate (8) is provided with a guide groove (12), and one side of the guide plate (8) is provided with an arc surface (9). The outer surface of the sealing gasket (2) is fixedly connected with a limiting plate (15), and the outer surface of the butterfly plate (3) is fixedly connected with a support rod (6). One end of the support rod (6) is provided with a slot (13), and the inner wall of the slot (13) is fitted with a silicone pad (14).

3. A butterfly valve with fluid guidance according to claim 2, characterized in that: One end of the silicone pad (14) is engaged with the inner wall of the slot (13), and the outer surface of the limiting plate (15) is attached to one side of the guide plate (8).

4. A butterfly valve with fluid guidance according to claim 1, characterized in that: The outer surface of the rotating rod (7) is provided with a through hole, and the outer surface of the fixed rod (10) is rotatably connected to the inner wall of the through hole.

5. A butterfly valve with fluid guidance according to claim 1, characterized in that: The inner wall of the groove (4) is in contact with one side of the guide plate (8).

6. A butterfly valve with fluid guidance according to claim 1, characterized in that: The outer surface of the butterfly plate (3) is engaged with the inner wall of the sealing gasket (2).

7. A butterfly valve with fluid guidance according to claim 1, characterized in that: The inner wall of the rotating rod (7) is provided with an arc-shaped groove, and the torsion spring (11) is placed inside the arc-shaped groove. The two ends of the torsion spring (11) are respectively fixedly connected to the inner wall of the arc-shaped groove.

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