Clean type ball valve ball
By designing a hemispherical structure and sealing film, the problems of low production efficiency and poor sealing performance of ball valve balls were solved, achieving high-efficiency production and good sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIGONG VALVE CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-14
AI Technical Summary
The production efficiency of existing ball valve balls is low, the processing is difficult, and the sealing performance is poor.
It adopts a two-hemispherical structure, which is connected by a sealing film and a tightening sleeve, and combined with a support plate and a limiting ring to form an integral sphere, reducing the processing difficulty and improving the sealing performance.
It simplifies the production process of the ball valve body, improves sealing performance, prevents fluid leakage, and cleans the inner wall of the valve body during rotation.
Smart Images
Figure CN224497510U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ball valve accessories technology, and in particular to a clean ball valve ball. Background Technology
[0002] The ball in a ball valve is the core opening and closing component. It is typically made of metal (such as stainless steel or cast steel), but wear-resistant and corrosion-resistant materials such as ceramics can also be used depending on requirements. Its shape is mostly spherical, with a circular channel in the center. The diameter of the channel is generally similar to the inner diameter of the pipe to reduce fluid resistance. The ball is driven by the valve stem to rotate around an axis perpendicular to the channel. When the ball's channel coincides with the pipe axis, the valve is fully open; after rotating 90 degrees, the ball blocks the channel, and the valve closes, achieving rapid opening and closing. The ball's surface requires precision machining to ensure a tight fit with the valve seat, thus achieving excellent sealing performance. It is widely used in various fluid transport systems.
[0003] However, current ball valve balls are usually machined into shape, processing a complete cylindrical material into a spherical shape and opening channels on its surface. This processing places high demands on the fixtures used for ball valve ball production, as well as on the cutting precision of the ball valve ball, resulting in poor production efficiency for the overall ball valve ball.
[0004] Therefore, a clean ball valve body is proposed to solve or alleviate the above problems. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a clean ball valve body.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A cleaning-type ball valve body includes two hemispheres, an upper connecting post and a lower connecting post fixedly connected to the top and bottom ends of the hemispheres. An inner channel is opened on one side of the two hemispheres facing each other, and a sealing film with elastic deformation properties is sandwiched between the two hemispheres. The sealing film has an upper film portion and a lower film portion fixedly connected to fit the upper connecting post and the lower connecting post. A tightening sleeve is fitted on the outer ring of the upper connecting post on both sides and the outer ring of the lower connecting post on both sides. A limit ring is fixedly connected to the inner ring of one end of the tightening sleeve.
[0008] Preferably, an annular support plate is fixedly connected between the hemisphere and the upper connecting column, and between the hemisphere and the lower connecting column, and the end face of the tightening sleeve abuts against the end face of the support plate.
[0009] Preferably, the upper connecting post is recessed downward to form a groove, which is used to install the valve stem.
[0010] Preferably, the sealing film located in the channel has several through holes extending along its thickness direction.
[0011] Preferably, the outer ring of the sealing film is integrally formed with a thick rubber ring, and there is a gap between the two sides of the thick rubber ring and the two sides of the sealing film. The thick rubber ring covers the joint of the two hemispheres and is fitted to the outer wall of the hemispheres.
[0012] This utility model has the following beneficial effects:
[0013] During assembly, the sealing film is first applied to the plane of the hemisphere, with the thick rubber ring providing a limiting position to prevent displacement. Then, the upper and lower film portions are respectively applied to the planes of the corresponding connecting columns. The other half of the hemisphere is then pressed on to complete the clamping. After applying pressure, the connecting column is riveted and fixed with a tightening sleeve, ensuring that the two hemispheres are tightly joined into a single sphere, reducing processing difficulty. The sealing film and the outer thick rubber ring seal the joint to prevent fluid from entering, and the thick rubber ring can also scrape away impurities from the inner wall of the valve body, preventing damage to the sphere. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is an exploded view of the present invention.
[0017] In the diagram: 1. Hemisphere; 2. Inner channel; 3. Support plate; 4. Upper connecting post; 5. Groove; 6. Lower connecting post; 7. Sealing film; 8. Through hole; 9. Upper film part; 10. Lower film part; 11. Thick rubber ring; 12. Tightening sleeve; 13. Limiting ring. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0021] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] A type of cleanable ball valve ball, such as Figure 1 and Figure 2As shown, the device includes two hemispheres 1, an upper connecting post 4 and a lower connecting post 6 fixedly connected to the top and bottom ends of the hemispheres 1. An inner channel 2 is provided on one side of the two hemispheres 1 facing each other. The upper connecting post 4 is recessed downward to form a groove 5, which is used to install the valve stem. A sealing film 7 with elastic deformation properties is sandwiched between the two hemispheres 1. The sealing film 7 is fixedly connected to an upper film portion 9 and a lower film portion 10 that fits against the upper connecting post 4 and the lower connecting post 6. A tightening sleeve 12 is fitted on the outer ring of the upper connecting post 4 on both sides and the outer ring of the lower connecting post 6 on both sides. A limit ring 13 is fixedly connected to the inner ring of one end of the tightening sleeve 12. A ring-shaped support plate 3 is fixedly connected between the hemisphere 1 and the upper connecting post 4 and between the hemisphere 1 and the lower connecting post 6. The end face of the tightening sleeve 12 abuts against the end face of the support plate 3.
[0025] The sealing film 7 located in the channel has several through holes 8 extending along its thickness direction. The outer ring of the sealing film 7 is integrally formed with a thick rubber ring 11. There is a gap between the two sides of the thick rubber ring 11 and the two sides of the sealing film 7. The thick rubber ring 11 covers the joint of the two hemispheres 1 and is set to fit the outer wall of the hemisphere 1.
[0026] In actual assembly, this utility model only requires attaching the sealing film 7 to one side of the plane of the hemisphere 1. At this time, the thick rubber ring 11 can limit the sealing film 7, thereby ensuring that the sealing film 7 is in the correct position and will not shift. Then, the upper film part 9 and the lower film part 10 are respectively attached to the planes of the upper connecting post 4 and the lower connecting post 6 until the other half of the hemisphere 1 is pressed on the sealing film 7, completing the clamping action of the two hemispheres 1 on the sealing film 7. Then, pressure is applied to the two hemispheres 1 so that they can firmly clamp the sealing film 7. Finally, the tightening sleeve 12 is inserted into the outside of the two upper connecting posts 4 by riveting, and the tightening sleeve 12 is inserted into the plane of the hemisphere 1. The sleeve 12 abuts against the end face of the support plate 3, and the outer sides of the two lower connecting columns 6 are also fitted with tightening sleeves 12. In this way, the two hemispheres 1 can fit tightly together and be used as a whole ball, reducing the difficulty of ball valve ball production and processing. The sealing film 7 between the two hemispheres 1 can ensure that the joint between the two hemispheres 1 can be blocked, preventing fluid from entering between the two hemispheres 1. In addition, the thick rubber ring 11 on the outer ring of the sealing film 7 blocks and seals the joint between the two hemispheres 1. At the same time, the thick rubber ring 11 can scrape the inner wall of the ball valve ball during the rotation of the ball, eliminating impurities attached to the inner wall of the valve body, ensuring that the ball will not be damaged by impurities during use.
[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A clean-type ball valve ball, characterized in that, It includes two hemispheres (1), an upper connecting post (4) and a lower connecting post (6) fixedly connected to the top and bottom ends of the hemispheres (1). An inner channel (2) is opened on one side of the two hemispheres (1) facing each other, and a sealing film (7) with elastic deformation properties is sandwiched between the two hemispheres (1). The sealing film (7) is fixedly connected to an upper film part (9) and a lower film part (10) that fits against the upper connecting post (4) and the lower connecting post (6). A tightening sleeve (12) is fitted on the outer ring of the upper connecting post (4) on both sides and the outer ring of the lower connecting post (6) on both sides. A limit ring (13) is fixedly connected to the inner ring of one end of the tightening sleeve (12).
2. The ball of a clean-type ball valve according to claim 1, characterized in that, A ring-shaped support plate (3) is fixedly connected between the hemisphere (1) and the upper connecting column (4) and between the hemisphere (1) and the lower connecting column (6), and the end face of the tightening sleeve (12) abuts against the end face of the support plate (3).
3. The ball of a cleaning-type ball valve according to claim 2, characterized in that, The upper connecting post (4) is recessed downward to form a groove (5), which is used to install the valve stem.
4. The ball of a clean-type ball valve according to claim 1, characterized in that, The sealing film (7) located in the channel has several through holes (8) extending along its thickness direction.
5. The ball of a clean-type ball valve according to claim 1, characterized in that, The outer ring of the sealing film (7) is integrally formed with a thick rubber ring (11). There is a gap between the two sides of the thick rubber ring (11) and the two sides of the sealing film (7). The thick rubber ring (11) covers the joint of the two hemispheres (1) and is set to fit the outer wall of the hemisphere (1).