Ball valve
阅读说明:本技术 一种球阀 (Ball valve ) 是由 包霖 巫振汉 王大浩 于 2019-10-30 设计创作,主要内容包括:本发明公开一种球阀,包括第一阀体和两个第二阀体,两个第二阀体分别连接在第一阀体的相对两端,第二阀体的内部分别设置有阀座和球芯,球芯位于阀座与第二阀体之间,球芯连接有阀杆。本发明中,在第一阀体的两端分别连接第二阀体,并在两个第二阀体的内部通过阀座支撑有球芯,利用两个球芯对第一阀体和两个第二阀体同时进行封堵,此种结构的球阀可以为管道的密封和截止介质提供双重保障,避免管道中的介质发生泄漏,保证球阀的气密性和安全性。(The invention discloses a ball valve which comprises a first valve body and two second valve bodies, wherein the two second valve bodies are respectively connected to two opposite ends of the first valve body, a valve seat and a ball core are respectively arranged in the second valve bodies, the ball core is positioned between the valve seat and the second valve bodies, and the ball core is connected with a valve rod. According to the ball valve with the structure, the two ends of the first valve body are respectively connected with the second valve bodies, the ball cores are supported in the two second valve bodies through the valve seats, and the two ball cores are used for simultaneously plugging the first valve body and the two second valve bodies.)
1. The utility model provides a ball valve, its characterized in that includes first valve body and two second valve bodies, two the second valve body is connected respectively the relative both ends of first valve body, the inside of second valve body is provided with disk seat and ball core respectively, the ball core be located the disk seat with between the second valve body, the ball core is connected with the valve rod.
2. The ball valve according to claim 1, wherein a first flange plate is protruded from each of opposite ends of the first valve body, a second flange plate is protruded from one end of the second valve body adjacent to the first valve body, and the first flange plate and the second flange plate are detachably connected by a connection bolt assembly.
3. The ball valve of claim 2, wherein a sealing gasket is disposed between the first flange plate and the second flange plate.
4. The ball valve according to claim 3, wherein the end surface of the first flange plate facing the second flange plate is annularly provided with a groove, the end surface of the second flange plate facing the first flange plate is convexly provided with a convex part matched with the groove, the sealing gasket is arranged in the groove, and the convex part is abutted against the end surface of the sealing gasket far away from the second valve body.
5. The ball valve of claim 1, wherein the core is disposed between the first valve body and the second valve body, the first valve body and the second valve body abutting opposite ends of the valve seat, respectively.
6. The ball valve according to claim 1, wherein a cavity body communicating with a valve rod mounting hole and the valve rod mounting hole is respectively arranged at the top of the second valve body, the cavity body is positioned above the valve rod mounting hole, one end of the valve rod is connected with the ball core, the other end of the valve rod sequentially penetrates through the valve rod mounting hole and the cavity body and extends to the outside of the second valve body, and a packing assembly is arranged between the valve rod and the cavity wall of the cavity body.
7. The ball valve of claim 6, wherein the packing assembly includes a packing layer and a packing gland, the packing layer being positioned below the packing gland, the packing gland being compressed against an upper surface of the packing layer.
8. The ball valve of claim 6, wherein an end of the valve stem remote from the core is provided with a handle.
9. The ball valve according to claim 8, wherein the handle is connected with a first limit plate and a second limit plate respectively, the first limit plate is abutted against a side surface of the handle away from the ball core, and the second limit plate is located between the ball core and an inner wall of the second valve body.
10. The ball valve according to claim 9, wherein the inner wall of the second valve body is recessed in a position corresponding to the valve rod mounting hole to form an avoiding position, and the second limiting plate is located in the avoiding position.
Technical Field
The invention relates to the technical field of valves, in particular to a ball valve.
Background
The ball valve has the advantages of small fluid resistance, simple structure, tightness, reliability, convenient operation, rapid opening and closing and the like, and is widely applied to various industries such as petroleum, chemical engineering, power generation, papermaking, ships, maritime industry and the like.
A conventional ball valve generally includes a valve seat and a ball having a through hole, wherein the ball is installed in the valve seat, and the opening and closing of the ball valve are performed by the rotation of the ball in the valve seat. For some pipeline systems for conveying toxic and harmful media or media with high requirements on cleanliness, the pipeline systems have high requirements on sealing performance and barrier performance, and the ball valve with the traditional structure has poor sealing performance and barrier performance and cannot meet the requirements of people.
Disclosure of Invention
The invention aims to: provided is a ball valve which has good sealing performance and a simple structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a ball valve, includes first valve body and two second valve bodies, two the second valve body is connected respectively the relative both ends of first valve body, the inside of second valve body is provided with disk seat and ball core respectively, the ball core be located the disk seat with between the second valve body, the ball core is connected with the valve rod.
As an optimal technical scheme of the ball valve, the two opposite ends of the first valve body are respectively provided with a first flange plate in a protruding mode, one end, close to the first valve body, of the second valve body is provided with a second flange plate in a protruding mode, and the first flange plate is detachably connected with the second flange plate through a connecting bolt assembly.
As a preferable technical solution of the ball valve, a sealing gasket is disposed between the first flange plate and the second flange plate.
As a preferred technical scheme of the ball valve, a groove is annularly formed in the end surface of the first flange plate, which faces the second flange plate, a convex part matched with the groove is convexly formed in the end surface of the second flange plate, which faces the first flange plate, the sealing gasket is arranged in the groove, and the convex part and the end surface of the sealing gasket, which is far away from the second valve body, are abutted tightly.
As a preferable aspect of the ball valve, the ball core is disposed between the first valve body and the second valve body, and the first valve body and the second valve body are respectively abutted against opposite ends of the valve seat.
As an optimal technical scheme of the ball valve, a cavity body communicated with a valve rod mounting hole is respectively arranged at the top of the second valve body, the cavity body is located above the valve rod mounting hole, one end of the valve rod is connected with the ball core, the other end of the valve rod sequentially penetrates through the valve rod mounting hole and the cavity body and extends to the outside of the second valve body, and a packing assembly is arranged between the valve rod and the cavity wall of the cavity body.
As a preferable technical solution of the ball valve, the packing assembly includes a packing layer and a packing gland, the packing layer is located below the packing gland, and the packing gland is compressed on the upper surface of the packing layer.
As a preferable technical scheme of the ball valve, one end of the valve rod, which is far away from the ball core, is provided with a handle.
As an optimal technical scheme of the ball valve, a first limiting plate and a second limiting plate are connected to the handle respectively, the first limiting plate is abutted to one side face of the ball core far away from the handle, and the second limiting plate is located between the ball core and the inner wall of the second valve body.
Conduct an optimal technical scheme of ball valve, the inner wall of second valve body corresponds the position of valve rod mounting hole is concave to be equipped with and dodges the position, the second limiting plate is located and dodges the position.
The invention has the beneficial effects that: the two ends of the first valve body are respectively connected with the second valve bodies, the ball cores are supported in the two second valve bodies through the valve seats, the two ball cores are used for simultaneously plugging the first valve body and the two second valve bodies, the ball valve with the structure can provide double guarantee for sealing and stopping media of a pipeline, the media in the pipeline are prevented from leaking, and the air tightness and the safety of the ball valve are guaranteed.
Drawings
The invention is explained in more detail below with reference to the figures and examples.
FIG. 1 is a schematic sectional view of a ball valve according to an embodiment.
In the figure:
1. a first valve body; 11. a first flange plate; 12. a convex portion; 2. a second valve body; 21. a second flange plate; 22. a valve seat; 23. a ball core; 24. a second limiting plate; 25. a second connecting plate; 26. a first connecting plate; 27. a handle grip; 28. a first limit plate; 29. a valve stem; 210. a cover body; 211. a filler layer; 212. a gasket; 213. a locking hole; 214. a connecting portion; 3. a connecting bolt; 4. a connecting nut; 5. and fastening the bolt.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1, the present invention provides a ball valve, which includes a first valve body 1 and two second valve bodies 2, wherein the two second valve bodies 2 are respectively connected to two opposite ends of the first valve body 1, a
Wherein, the second valve body 2 is far away from the one end of first valve body 1 and is connected with the pipeline respectively. In this embodiment, the two ends of the first valve body 1 are respectively connected to the second valve bodies 2, the
According to the embodiment, the two first valve bodies 1 have the same structure, so that the number of production dies can be reduced, and the interchangeability of products is improved.
In other embodiments, the two second valve bodies 2 may have different structures.
In one embodiment, two opposite ends of the first valve body 1 are respectively provided with a
As a preferred embodiment, a
Specifically,
Further, the depth of recess is greater than the thickness of sealed 212 piece, and this kind of design, the terminal surface that sealed 212 piece deviates from second valve body 2 does not bulge in the recess, can be so that
In one embodiment, the
Preferably, the
In one embodiment, the
In this embodiment, the top of the second valve body 2 is provided with a valve rod mounting hole and a cavity communicated with the valve rod mounting hole, the cavity is located above the valve rod mounting hole, one end of the
Wherein, the
The packing assembly comprises a
Specifically, the packing cover comprises a
In order to rotate the
In one embodiment, the handle is connected to a
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
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