High-frequency butterfly valve

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a high-frequency butterfly valve. Comprising a valve body, a valve rod arranged in the valve body and a valve plate arranged on the valve rod. The rotating assemblies are arranged at the two ends of the valve rod, the sealing assemblies are arranged between the rotating assemblies and the valve body, and the driving assemblies are arranged at one ends of the rotating assemblies; the valve seat is arranged between the valve body and the valve plate, and the adjusting assembly is arranged between the valve seat and the valve body and used for adjusting a gap between the valve seat and the valve plate. The high-frequency butterfly valve has the advantages of being high in working efficiency, capable of automatically adjusting the gap between the valve seat and the valve plate, strong in adaptive capacity, good in stability and reliability, good in sealing effect, long in service life and the like.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and in particular to a high-frequency butterfly valve. Background Technology

[0002] A butterfly valve is a type of valve plate used in piping systems. Its closing element (valve disc or butterfly plate) is disc-shaped and controls the opening and closing of fluid by rotating around the valve shaft. Its working principle is to control the flow of fluid by rotating the butterfly plate. The butterfly plate rotates around the axis. When the butterfly plate is parallel to the direction of fluid flow, the valve plate is open; when the butterfly plate is perpendicular to the direction of fluid flow, the valve plate is closed.

[0003] Chinese patent CN218063440U discloses a soft-seal butterfly valve with an easily replaceable valve seat. The valve includes a main valve body. A sealing ring is fixedly fitted onto the outer ring at the center of the front of the main valve body. A protective groove is formed on the inner side of the outer ring at the center of the front of the main valve body. Guide grooves are formed at both ends of the inner side of the protective groove. Positioning blocks are fixedly installed on the upper and lower sides of the left and right ends of the inner cavity of the main valve body. Sealing screw holes are formed on the left and right sides of the upper and lower ends of the inner cavity of the protective groove. This invention, through the design of the valve seat body, utilizes the cooperation between the main valve body, guide groove, valve seat body, guide block, positioning groove, and splicing sealing strip to assemble two valve seat bodies together in the inner cavity of the front of the main valve body. This allows for convenient installation and disassembly of the valve seat body, thereby improving the practicality of the soft-seal butterfly valve.

[0004] However, this technical solution relies on the cooperation between the main valve body, guide groove, valve seat body, guide block, positioning groove and splicing sealing strip to ensure the sealing effect. During use, due to the continuous friction between the valve plate and the valve body, the wear between the two will increase, resulting in gaps and poor sealing. It is necessary to replace the parts. It cannot automatically adjust the gap between the two, which is inconvenient to use, has low work efficiency, and its structure is complex and inconvenient to disassemble and assemble. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a high-frequency butterfly valve that automatically adjusts the gap between the valve seat and the valve plate through an adjustment component, ensuring the sealing between the valve plate and the valve body. This eliminates the need for replacing additional parts, saving significant manpower and resources, and thereby improving the working efficiency of the butterfly valve.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-frequency butterfly valve includes: a valve body, a valve stem disposed inside the valve body, and a valve plate disposed on the valve stem; and further includes: a rotating assembly disposed at both ends of the valve stem, a sealing assembly disposed between the rotating assembly and the valve body, a driving assembly disposed at one end of the rotating assembly, a valve seat disposed between the valve body and the valve plate, and an adjusting assembly disposed between the valve seat and the valve body for adjusting the gap between the valve seat and the valve plate.

[0008] Preferably, the adjusting assembly includes: a pressure ring disposed inside the valve body and a seal disposed between the pressure ring and the valve seat.

[0009] Preferably, an automatic adjusting element for adjusting the position of the valve seat is provided between the seal and the pressure ring.

[0010] Preferably, the rotating assembly includes: a bearing fixedly connected to the valve stem, a bearing cap disposed on one side of the bearing, a bearing seat disposed on the other side of the bearing, and a plurality of first fasteners disposed between the bearing cap and the bearing seat.

[0011] Preferably, an adjusting sleeve is provided between the bearing housing and the valve stem.

[0012] Preferably, the sealing assembly includes: a gasket disposed between the valve body and the valve stem end, packing disposed adjacent to the gasket, a packing spacer ring disposed in the middle of the packing, a packing sleeve disposed adjacent to the packing, a packing pressure plate disposed adjacent to the packing pressure plate, and a plurality of second fasteners disposed on the packing pressure plate for fixing.

[0013] Preferably, an automatic compensation element for reducing packing wear is provided between the packing pressure plate and the second fastener.

[0014] Preferably, the drive assembly includes: a drive member that provides power, a connecting shaft disposed at the output end of the drive member, and a flat key disposed between the connecting shaft and the valve stem.

[0015] Preferably, a bracket is provided on the outer side of the valve body.

[0016] Preferably, the bracket is fixedly connected by a plurality of third fasteners and fixing pins, wherein the third fasteners and the fixing pins do not interfere with each other.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) By installing an adjustment component between the valve body and the valve seat, the butterfly valve can automatically adjust the position of the valve seat, thereby ensuring that the butterfly valve can maintain good sealing performance and adjustment accuracy under different working conditions, ensuring the working efficiency of the butterfly valve, improving the adaptability and reliability of the butterfly valve, and reducing the problem of sealing failure or inaccurate adjustment caused by changes in the gap between the valve seat and the valve plate.

[0019] (2) By installing external bearings at both ends of the valve stem, this utility model can not only play a positioning and guiding role, but also reduce the friction and wear of the valve stem during rotation, ensuring that the valve stem can rotate smoothly and flexibly. Moreover, the entire rotating assembly can improve the rotation performance of the butterfly valve, reduce friction, extend the service life of the valve stem and bearings, and at the same time ensure the stability of the rotation process and improve the control accuracy of the butterfly valve.

[0020] (3) By filling the space between the valve stem and the valve body with packing, this utility model can effectively prevent medium leakage, improve the sealing performance and reliability of the butterfly valve, and adapt to different working conditions through multi-layer sealing structure and reasonable packing arrangement, ensuring that the butterfly valve maintains a good sealing effect during high-frequency use.

[0021] In summary, this utility model has the advantages of high working efficiency, automatic adjustment of the gap between the valve seat and the valve plate, strong adaptability, good stability and reliability, good sealing effect and long service life. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a partial cross-sectional view of the present invention;

[0024] Figure 3 for Figure 2 Enlarged view of point A;

[0025] Figure 4 for Figure 2 Enlarged view of point B;

[0026] Figure 5 for Figure 2 Enlarged view of point C. Detailed Implementation

[0027] 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.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Example

[0030] like Figures 1-5 As shown, this embodiment provides a high-frequency butterfly valve, including: a valve body 1, a valve stem 2 disposed inside the valve body 1, and a valve plate 3 disposed on the valve stem 2. It also includes: a rotating assembly 4 disposed at both ends of the valve stem 2, a sealing assembly 5 disposed between the rotating assembly 4 and the valve body 1, a driving assembly 6 disposed at one end of the rotating assembly 4, a valve seat 7 disposed between the valve body 1 and the valve plate 3, and an adjusting assembly 8 disposed between the valve seat 7 and the valve body 1 for adjusting the gap between the valve seat 7 and the valve plate 3. Specifically, due to the continuous rotation of the valve plate 3, it continuously rubs against the valve seat 7, causing the valve seat 7 to... Wear and tear can cause a gap between the valve seat 7 and the valve plate 3. The adjusting component 8 can automatically adjust the position of the valve seat 7 to ensure that the butterfly valve maintains good sealing performance and adjustment accuracy under different operating conditions, improve the adaptability and reliability of the butterfly valve, and reduce the problems of sealing failure or inaccurate adjustment caused by changes in the gap between the valve seat 7 and the valve plate 3. The rotating component 4 can improve the rotation performance of the butterfly valve, reduce friction, extend the service life of the valve stem 2 and the bearing, and at the same time ensure the stability of the rotation process, improve the control accuracy of the butterfly valve, and is suitable for high-frequency conditions. It can ensure that the butterfly valve can be frequently switched when installed on corresponding equipment, thereby ensuring work efficiency.

[0031] The adjusting component 8 includes a pressure ring 81 disposed inside the valve body 1 and a sealing element 82 disposed between the pressure ring 81 and the valve seat 7. The pressure ring 81 provides an installation base for the sealing element 82 and the valve seat 7, and also serves as a limit to ensure the stability of the valve seat 7. The sealing element 82 is preferably an O-ring, which can fill the gap between the valve seat 7 and the valve body 1 to prevent media leakage, and also serves as a buffer and shock absorber to protect the valve seat 7 and the valve body 1 from damage. The shape of the sealing element 82 is variable under the action of external force, that is, it can be adaptively adjusted according to different actual working conditions, and the pressure ring 81 should have enough space to ensure the shape change of the sealing element 82.

[0032] Meanwhile, an automatic adjusting component 83 for adjusting the position of the valve seat 7 is provided between the sealing component 82 and the pressure ring 81. The automatic adjusting component 83 can automatically adjust the position of the valve seat 7 according to the gap between the valve seat 7 and the valve plate 3, ensuring that the valve seat 7 and the valve plate 3 always maintain an appropriate gap, thereby ensuring the sealing performance and adjustment accuracy of the butterfly valve. Specifically, an elastic component, such as a compression spring, can be used.

[0033] In this embodiment, under the action of the automatic adjustment component 83, the combination of the position change of the valve seat 7 and the shape change of the sealing component 82 makes the worn position between the valve seat 7 and the valve plate 3 completely replenished, thereby ensuring the sealing effect and extending the service life of the butterfly valve. The valve seat 7 is preferably made of plastic.

[0034] In this embodiment, the rotating assembly 4 includes: a bearing 41 fixedly connected to the valve stem 2, a bearing cover 42 disposed on one side of the bearing 41, a bearing seat 43 disposed on the other side of the bearing 41, and a plurality of first fasteners 44 disposed between the bearing cover 42 and the bearing seat 43. That is, external bearings 41 are provided at both ends of the valve stem 2, which serve as positioning and guiding functions, and can also reduce the friction and wear of the valve stem 2 during rotation, ensuring that the valve stem 2 can rotate smoothly and flexibly.

[0035] In this embodiment, the bearing cover 42 can protect the bearing 41, prevent dust, impurities and other contaminants from entering the bearing 41, and at the same time play a sealing role to prevent media leakage.

[0036] In this embodiment, the bearing housing 43 provides a stable mounting position for the bearing 41, ensuring the correct installation and positioning of the bearing 41.

[0037] In this embodiment, a plurality of the first fasteners 44 fix the bearing cover 42 and the bearing seat 43 together, which can ensure the structural stability and reliability of the entire rotating assembly 4.

[0038] In this embodiment, an adjusting sleeve 45 is provided between the bearing seat 43 and the valve stem 2 to adjust the position between the valve stem 2 and the bearing seat 43, ensuring the coaxiality and fitting accuracy of the valve stem 2 and the bearing seat 43, thereby improving the rotation performance and sealing performance of the butterfly valve. The adjusting sleeve 45 can ensure good fit between the valve stem 2 and the bearing seat 43 during rotation, reducing problems such as valve stem 2 eccentricity caused by installation errors or wear, and improving the service life and reliability of the butterfly valve.

[0039] In this embodiment, the sealing assembly 5 includes: a gasket 51 disposed between the valve body 1 and the end of the valve stem 2, a packing 52 disposed adjacent to the gasket 51, a packing spacer 53 disposed in the middle of the packing 52, a packing sleeve 54 disposed adjacent to the packing 52, a packing pressure plate 55 disposed adjacent to the packing pressure plate 54, and a plurality of second fasteners 56 disposed on the packing pressure plate 55 for fixing. The gasket 51 can fill the gap between the valve body 1 and the end of the valve stem 2, playing a preliminary sealing role and preventing the medium from leaking from the connection between the valve stem 2 and the valve body 1.

[0040] In this embodiment, the packing 52 further fills the gap between the valve stem 2 and the valve body 1, providing a more reliable sealing effect and preventing media leakage.

[0041] In this embodiment, the packing spacer ring 53 divides the packing 52 into several parts, making the overall stress on the packing 52 more uniform, improving the sealing performance of the packing 52, and facilitating the replacement and adjustment of the packing 52.

[0042] In this embodiment, the packing sleeve 54 can apply pressure to the packing 52, so that the packing 52 fits tightly against the valve stem 2 and the valve body 1, thereby enhancing the sealing effect.

[0043] In this embodiment, the packing pressure plate 55 fixes the packing sleeve 54 with the second fastener 56 to ensure that the pressure of the packing sleeve 54 on the packing 52 is stable and reliable, thereby ensuring the structural stability of the entire sealing assembly 5 and enabling the packing 52 to effectively perform its sealing function.

[0044] The sealing component 5 can effectively prevent media leakage and improve the sealing performance and reliability of the butterfly valve. Through the multi-layer sealing structure and reasonable packing 52 arrangement, it can adapt to different working conditions and ensure that the butterfly valve maintains a good sealing effect during high-frequency use.

[0045] In this embodiment, an automatic compensation element 57, preferably a disc spring, is provided between the packing pressure plate 55 and the second fastener 56 to reduce the wear of the packing 52. As the valve stem 2 moves and the packing 52 wears, the automatic compensation element 57 can automatically adjust the compression of the packing 52 to ensure that the packing 52 is always in the best sealing state, thus ensuring the sealing performance of the butterfly valve.

[0046] In this embodiment, the automatic compensation component 57 enables the packing 52 to distribute pressure more evenly during the stress process, thereby reducing local excessive wear of the packing 52, extending the service life of the packing 52, and enabling the butterfly valve to adapt to different working conditions, including temperature changes, pressure fluctuations, etc., ensuring that the butterfly valve maintains good sealing performance under various conditions.

[0047] In this embodiment, the drive assembly 6 includes: a drive component 61 that provides power, a connecting shaft 62 disposed at the output end of the drive component 61, and a flat key 63 disposed between the connecting shaft 62 and the valve stem 2. The drive assembly 6 can ensure stable and reliable power transmission of the butterfly valve, improve the control performance and ease of operation of the butterfly valve, and through a reasonable connection structure, ensure the power transmission efficiency between the drive component 61 and the valve stem 2, reduce power loss, and improve the response speed and control accuracy of the butterfly valve.

[0048] Of course, a bracket 9 is provided on the outside of the valve body 1. The bracket 9 provides additional support for the butterfly valve, enhances the overall structural strength and stability of the butterfly valve, and can withstand external forces and torques during installation and use, preventing the butterfly valve from deforming or being damaged.

[0049] In addition, the bracket 9 is fixedly connected by several third fasteners 91 and fixing pins 92. The third fasteners 91 and the fixing pins 92 do not interfere with each other. That is, the third fasteners 91 and the fixing pins 92 work together to firmly fix the bracket 9 to the valve body 1, ensuring that the connection between the bracket 9 and the valve body 1 is stable and reliable, improving the overall structural stability of the butterfly valve. The non-interference design can ensure the normal installation and use of each component, avoiding installation difficulties or structural damage caused by mutual influence between fasteners, facilitating installation and maintenance, and improving the ease of use and reliability of the butterfly valve.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high frequency butterfly valve, comprising: The valve body, the valve stem arranged inside the valve body and the valve plate arranged on the valve stem are characterized in that further comprising: rotating components arranged at both ends of the valve stem, sealing components arranged between the rotating components and the valve body, driving components arranged at one end of the rotating components, valve seats arranged between the valve body and the valve plate, and adjusting components arranged between the valve seats and the valve body for adjusting the gap between the valve seats and the valve plate.

2. A high frequency butterfly valve according to claim 1, characterized in that The adjusting components comprise a pressing ring arranged inside the valve body and a sealing member arranged between the pressing ring and the valve seat.

3. A high frequency butterfly valve according to claim 2, characterized in that An automatic adjusting member for adjusting the position of the valve seat is arranged between the sealing member and the pressing ring.

4. The high frequency butterfly valve according to claim 1, wherein The rotating components comprise bearings fixedly connected to the valve stem, bearing covers arranged at one side of the bearings, bearing seats arranged at the other side of the bearings, and a plurality of first fasteners arranged between the bearing covers and the bearing seats.

5. A high frequency butterfly valve according to claim 4, wherein An adjusting sleeve is arranged between the bearing seats and the valve stem.

6. The high frequency butterfly valve according to claim 1, wherein The sealing components comprise gaskets arranged between the valve body and the end of the valve stem, packing arranged at the adjacent side of the gaskets, packing spacers arranged in the middle of the packing, packing pressing sleeves arranged at the adjacent side of the packing, packing pressing plates arranged at the adjacent side of the packing pressing sleeves, and a plurality of second fasteners arranged on the packing pressing plates for fixing.

7. A high frequency butterfly valve according to claim 6, characterized in that An automatic compensating member for reducing the wear of the packing is arranged between the packing pressing plates and the second fasteners.

8. The high frequency butterfly valve of claim 1, wherein, The driving components comprise driving members for providing power, connecting shafts arranged at the output ends of the driving members, and flat keys arranged between the connecting shafts and the valve stem.

9. The high frequency butterfly valve of claim 1, wherein, The outer side of the valve body is provided with a bracket.

10. A high frequency butterfly valve according to claim 9, characterized in that The bracket is fixedly connected by a plurality of third fasteners and fixing pins, and the third fasteners and the fixing pins do not interfere with each other.

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