Ball valve

Abstract

The utility model relates to a ball valve which comprises a valve body, a flow channel is formed in the valve body, a ball body is rotatably arranged in the flow channel, a valve rod connected with the ball body is further arranged in the valve body, and the ball valve is characterized in that the ball body comprises a first body and sealing ends, and the sealing ends are detachably connected to the two ends of the first body; a fixing part, a bottom cover and a bottom groove communicated with the outside are arranged at the bottom of the valve body, the bottom cover is detachably connected to the bottom groove, and the fixing part fixes the bottom cover and the valve body. The utility model provides a ball valve which is convenient to replace.

Description

Technical Field

[0001] The utility model relates to a valve, in particular to a ball valve. Background Art

[0002] Ball valves are a common fluid control device used in the petroleum, chemical, and water treatment industries. They achieve fluid on / off or flow regulation through the rotation of a ball. In practice, the ball often causes friction between the valve body and the valve seat. Long-term friction can lead to wear on the sealing surface, damage to the valve seat, or ball sticking, which in turn affects the valve's sealing performance and service life. Wear on the ball requires removal of the pipes or valves at both ends of the valve body, making replacement and maintenance complex.

[0003] Therefore, there is an urgent need for a valve structure with a ball that is easy to maintain and easy to replace, so as to solve the problem of inconvenient ball replacement in the prior art. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a ball valve that is easy to replace.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ball valve, comprising a valve body, a flow channel formed in the valve body, a ball rotatably arranged in the flow channel, and a valve stem connected to the ball also provided in the valve body, characterized in that: the ball comprises a first body and a sealing end, the sealing end is detachably connected to the two ends of the first body, a fixing part, a bottom cover and a bottom groove connected to the outside world are provided at the bottom of the valve body, the bottom cover is detachably connected to the bottom groove, and the fixing part fixes the bottom cover and the valve body.

[0006] By adopting the above technical solution, a detachable sealing end is provided and a bottom groove is provided. After use, the sealing end of the valve body section can be replaced by removing the bottom cover. The cost of replacing the above structure is lower, and it can also be replaced from the bottom, which is more convenient and quick.

[0007] The present invention is further configured as follows: a support portion protrudes from one end of the bottom cover, a rotation groove is recessed on the support portion, a matching rotation rod protrudes from the first body, and a rotation surface that is tightly attached to the support portion is formed between the first body and the bottom of the sealing end.

[0008] By adopting the above technical solution and arranging the rotating rod and the rotating groove, the ball can rotate on the support portion, providing support for the first body and the sealing end, and making the connection between the two more stable.

[0009] The utility model is further configured as follows: the rotating surface includes a curved surface and a flat surface.

[0010] By adopting the above technical solution, when the surface is curved, the support portion and the rotating surface of the sphere cooperate with each other, which can better limit the position of the sphere and facilitate the installation operation.

[0011] The utility model is further configured as follows: the fixing member includes connecting parts arranged at both ends of the bottom cover, and the valve body is provided with connecting grooves that match the connecting parts.

[0012] By adopting the above technical solutions and cooperating with each other, better installation and disassembly can be achieved, and the installation and disassembly are simple, convenient and practical.

[0013] The present invention is further configured as follows: a limiting strip is formed on the sealing end, a limiting sliding groove cooperating therewith is recessed on the first body, and the limiting strips are evenly arranged on the sealing end and are provided in plurality.

[0014] By adopting the above technical solution, it can not only play a role of limiting, but also play a role of enhancing strength.

[0015] The utility model is further configured as follows: a limiting groove is formed on one end of the first body connected to the valve stem, and a clamping protrusion matching the limiting groove is protruded from the sealing end.

[0016] By adopting the above technical solution, the limit is performed, and the installation to the specified position is more convenient with the limit.

[0017] The present invention is further configured as follows: a fixing protrusion is protruded from the bottom of the sealing end, and a fixing groove is recessed in the first body.

[0018] By adopting the above technical solution, it can be better installed in the designated position with the help of limiters.

[0019] The utility model is further configured as follows: a limited edge is extended from the bottom of the valve body, a sealing gap is formed on the support portion, and a sealing ring is arranged in the sealing gap.

[0020] By adopting the above technical solution, the sealing is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is an enlarged view of part A of the present utility model.

[0023] In the figure: 1. valve body; 2. flow channel; 3. sphere; 31. first body; 32. sealing end; 4. bottom cover; 41. support part; 42. rotating rod; 43. rotating surface; 51. connecting part; 6. limiting strip; 61. snap-fit protrusion; 62. fixing protrusion; 7. sealing ring. DETAILED DESCRIPTION

[0024] The technical solutions of the present invention are described clearly and completely below with reference to the accompanying drawings. It should be understood that the embodiments described herein are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used to indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are used solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific manner. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] like Figure 1-2 As shown, a ball valve includes a valve body 1, a flow channel 2 formed therein, a ball 3 rotatably disposed within the flow channel 2, and a valve stem connected to the ball 3 disposed within the valve body 1. The valve body 1 is characterized in that the ball 3 includes a first body 31 and a sealing end 32, the sealing end 32 being detachably connected to both ends of the first body 31, and the bottom of the valve body 1 is provided with a fixing member, a bottom cover 4, and a bottom groove communicating with the outside world. The bottom groove is detachably connected to the bottom cover 4, and the fixing member fixes the bottom cover 4 and the valve body 1. By providing a detachable sealing end 32 and a bottom groove, after use, the sealing end 32 of the valve body 1 section can be replaced by removing the bottom cover 4. This structure has a lower replacement cost and can also be replaced from the bottom, making it more convenient and quick.

[0027] The bottom cover 4 has a protruding support portion 41 at one end, with a recessed rotation groove in the support portion 41. A matching rotation rod 42 protrudes from the first body 31. A rotation surface 43 is formed at the bottom of the first body 31 and the sealing end 32, which abuts against the support portion 41. The arrangement of the rotation rod 42 and the rotation groove allows the ball 3 to rotate on the support portion 41, providing support for the first body 31 and the sealing end 32 and further stabilizing the connection between the two.

[0028] The rotating surface 43 includes a curved surface and a flat surface. When the curved surface is used, the support portion 41 and the rotating surface 43 of the sphere 3 cooperate with each other, which can better limit the position of the sphere 3 and facilitate the installation operation.

[0029] The fixing member includes connecting parts 51 provided at both ends of the bottom cover 4, and the valve body 1 is provided with connecting grooves matching the connecting parts 51. The mutual cooperation enables better installation and disassembly, and the installation and disassembly are simple, convenient and practical.

[0030] A limiting groove is formed on one end of the first body 31 connected to the valve stem, and a matching clamping protrusion 61 is protruded on the sealing end 32 to limit the position, which is convenient for installation to the designated position.

[0031] The bottom of the sealing end 32 is formed with a fixing protrusion 62, and the first body 31 is recessed with a fixing groove, so as to better fit the sealing end 32 to the designated position.

[0032] The bottom of the valve body 1 extends to a limited edge, and a sealing gap is formed on the support portion 41. A sealing ring 7 is provided in the sealing gap to enhance the sealing.

[0033] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A ball valve, comprising a valve body, a flow channel formed in the valve body, a ball rotatably arranged in the flow channel, and a valve stem connected to the ball further provided in the valve body, characterized in that: The sphere includes a first body and a sealing end, the sealing end is detachably connected to the two ends of the first body, the bottom of the valve body is provided with a fixing part, a bottom cover and a bottom groove connected to the outside world, the bottom cover is detachably connected to the bottom groove, and the fixing part fixes the bottom cover and the valve body.

2. A ball valve according to claim 1, characterized in that: A supporting portion protrudes from one end of the bottom cover, a rotation groove is recessed on the supporting portion, a matching rotation rod protrudes from the first body, and a rotating surface is formed between the first body and the bottom of the sealing end that is in close contact with the supporting portion.

3. A ball valve according to claim 1, characterized in that: The rotation surfaces include curved surfaces and plane surfaces.

4. A ball valve according to claim 3, characterized in that: The fixing member includes connecting parts arranged at both ends of the bottom cover, and the valve body is provided with connecting grooves matching the connecting parts.

5. A ball valve according to claim 1, characterized in that: A limiting strip is formed on the sealing end, and a limiting sliding groove cooperating therewith is recessed on the first body. The limiting strips are evenly arranged on the sealing end and are provided in plurality.

6. A ball valve according to claim 5, characterized in that: A limiting groove is formed on one end of the first body connected to the valve stem, and a clamping protrusion matched with the limiting groove is protruded from the sealing end.

7. A ball valve according to claim 1, characterized in that: A fixing protrusion is protruded from the bottom of the sealing end, and a fixing groove is recessed in the first body.

8. A ball valve according to claim 2, characterized in that: A limited edge extends from the bottom of the valve body, a sealing gap is formed on the support portion, and a sealing ring is provided in the sealing gap.

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