Stainless steel ball valve casting

Abstract

The utility model relates to the technical field of ball valve castings, in particular to a stainless steel ball valve casting which comprises a casting body, a ball body cavity is arranged in the middle of a working channel, a valve rod is arranged at the upper end of a ball body, a guide sleeve is arranged at the upper end of the casting body, and the upper end of the valve rod penetrates through the guide sleeve and is provided with a wrench. Grooves are annularly formed in the positions, close to the two ends, of the casting body, and abutting assemblies are arranged at the positions, close to the two ends of the ball body, of the ball body cavity. According to the abutting assembly, the abrasion loss of the ball body is compensated through the compression acting force of the spring, the valve seat abuts against the ball body, the assembly is not affected by water flow pressure, and the good sealing effect is achieved; meanwhile, the arranged abutting assembly does not occupy the working space of the ball body, the overall size of the ball valve is not changed, and the structure is simple and practical.

Description

Technical Field

[0001] This utility model relates to the field of ball valve casting technology, and in particular to a stainless steel ball valve casting. Background Technology

[0002] A ball valve is a valve in which the opening and closing element (ball) is driven by the valve stem and rotates around the valve's axis. Ball valves are classified according to their actuation method into pneumatic ball valves, electric ball valves, and manual ball valves. Ball valves are mainly used in pipelines for shut-off, distribution, and changing the flow direction of media.

[0003] For example, the authorization announcement number "CN220249001U" describes a duplex stainless steel high wear-resistant ball valve casting. While the device, through its threaded rod, abutment, guide sleeve, and elastic support pad, allows for adjustment of the sealing plate after wear and aging, ensuring a tight seal between the ball valve and the sealing plate to prevent leakage and improve user convenience and practicality, it also has drawbacks. The threaded rod needs to be manually rotated to press the sealing plate against the abutment. The threaded rod, under water pressure, may rotate slightly, leading to poor contact between the elastic support pad and the sealing plate, resulting in a poor seal. Furthermore, the sealing plate occupies the working space of the ball valve, increasing its size and complicating its structure. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a stainless steel ball valve casting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stainless steel ball valve casting is designed, comprising a casting body, a working channel on the surface of the casting body, a ball cavity in the middle of the working channel, flanges on both ends of the casting body, and multiple flange holes on the surfaces of the two flanges, a ball inside the ball cavity, a connecting hole on the surface of the ball, a valve stem on the upper end of the ball, a guide sleeve on the upper end of the casting body, a wrench on the upper end of the valve stem passing through the guide sleeve, grooves on both ends of the casting body, and a clamping assembly near both ends of the ball cavity, the clamping assembly comprising multiple mounting cavities evenly arranged on one inner wall of the ball cavity, springs on one inner wall of each of the ball cavities, support columns on the other ends of each of the springs, and valve seats on one end of each support column near the ball, the valve seats being slidably connected to the casting body.

[0007] Preferably, each of the two grooves is provided with a first bolt, and each of the two grooves is provided with a first threaded hole on the inner wall of the side near the valve seat. The first bolt is threadedly connected to the first threaded hole, and one end of the first bolt is in contact with the surface of the valve seat.

[0008] Preferably, both grooves are provided with a protective sleeve in annular shape.

[0009] Preferably, the guide sleeve is provided with a second bolt on its outside, and the guide sleeve surface is provided with a second threaded hole. The second bolt is threadedly connected to the second threaded hole, and one end of the second bolt is in contact with the valve stem surface.

[0010] Preferably, the upper end of the guide sleeve is provided with multiple connecting posts, and the upper end of the multiple connecting posts is provided with a protective cover.

[0011] The stainless steel ball valve casting proposed in this utility model has the following advantages: the set clamping component compensates for the wear of the ball through the spring compression force, so that the valve seat is pressed tightly against the ball. This component is not affected by the water flow pressure and achieves a good sealing effect. At the same time, the set clamping component does not occupy the working space of the ball, and the overall volume of the ball valve is not changed, so the structure is simple and practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0014] Figure 3 This is an enlarged view of position A of this utility model;

[0015] Figure 4 This is an enlarged view of position B of this utility model.

[0016] In the figure: 1. Casting body; 2. Working channel; 3. Ball cavity; 4. Flange; 5. Flange hole; 6. Ball; 7. Connecting hole; 8. Valve stem; 9. Guide sleeve; 10. Wrench; 11. Groove; 12. Mounting cavity; 13. Spring; 14. Support column; 15. Valve seat; 16. First bolt; 17. First threaded hole; 18. Protective sleeve; 19. Second bolt; 20. Second threaded hole; 21. Connecting column; 22. Protective cover. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-4A stainless steel ball valve casting includes a casting body 1, a working channel 2 on the surface of the casting body 1, and a ball cavity 3 in the middle of the working channel 2 for storing a ball 6. Both ends of the casting body 1 are provided with annular flanges 4, and the surfaces of the two flanges 4 are provided with multiple annular flange holes 5. The ball 6 is placed inside the ball cavity 3, and the surface of the ball 6 is provided with a connecting hole 7. A valve stem 8 is provided at the upper end of the ball 6. A guide sleeve 9 is provided at the upper end of the casting body 1, and the upper end of the valve stem 8 passes through the guide sleeve 9 and is provided with a wrench 10. The casting body 1 is provided with annular grooves 11 near both ends. The ball cavity 3 is provided with clamping components near both ends of the ball 6. The clamping components do not occupy the working space of the ball 6, and the overall volume of the ball valve remains unchanged, resulting in a simple and practical structure.

[0019] The clamping assembly includes multiple mounting cavities 12, which are evenly arranged on one side of the inner wall of the ball cavity 3. Each side of the inner wall of the ball cavity 3 is provided with a spring 13, and each other end of the spring 13 is provided with a support column 14. Each support column 14 is provided with a valve seat 15 at one end near the ball 6, and the valve seat 15 is slidably connected to the casting body 1.

[0020] Both grooves 11 are provided with a first bolt 16 inside, and both grooves 11 are provided with a first threaded hole 17 on the inner wall of the side near the valve seat 15. The first bolt 16 is threadedly connected to the first threaded hole 17, and one end of the first bolt 16 is in contact with the surface of the valve seat 15.

[0021] Both grooves 11 have a protective sleeve 18 ring-shaped inside. The protective sleeve 18 is made of heat-insulating material, which can prevent freezing and scalding, making the ball valve suitable for a variety of scenarios.

[0022] The guide sleeve 9 is provided with a second bolt 19 on its outside and a second threaded hole 20 on its surface. The second bolt 19 is threadedly connected to the second threaded hole 20 and one end of the second bolt 19 is in contact with the surface of the valve stem 8.

[0023] The upper end of the guide sleeve 9 is provided with multiple connecting posts 21, and the upper end of the multiple connecting posts 21 is provided with a protective cover 22. The protective cover 22 serves to block dust and water flow, preventing corrosion of the ball valve casting.

[0024] Working principle: The set clamping component, through the compression force of spring 13, compensates for the wear of ball 6. Through the support column 14, the valve seat 15 is pressed against ball 6. This component is not affected by water flow pressure and achieves a good sealing effect. The valve stem 8 can be pressed against by the threaded connection of the second bolt 19 and the second threaded hole 20 to prevent the valve stem 8 from rotating. When spring 13 is insufficient, the valve seat 15 can also be pressed against by the threaded connection of the first bolt 16 and the first threaded hole 17, pushing the valve seat 15 into sealed contact with ball 6.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stainless steel ball valve casting, comprising a casting body (1), characterized in that, The surface of the casting body (1) is provided with a working channel (2), and a spherical cavity (3) is provided in the middle of the working channel (2). Both ends of the casting body (1) are provided with flanges (4) in annular shape. The surfaces of the two flanges (4) are provided with multiple flange holes (5) in annular shape. A sphere (6) is provided inside the spherical cavity (3). A connecting hole (7) is provided on the surface of the sphere (6). A valve stem (8) is provided at the upper end of the sphere (6). A guide sleeve (9) is provided at the upper end of the casting body (1). The upper end of the valve stem (8) passes through the guide sleeve (9) and is provided with a wrench (10). The body (1) has annular grooves (11) near both ends. The spherical cavity (3) has abutting components near both ends of the sphere (6). The abutting components include multiple mounting cavities (12). The multiple mounting cavities (12) are evenly arranged on one side of the inner wall of the spherical cavity (3). The multiple spherical cavities (3) have springs (13) on one side of the inner wall. The multiple springs (13) have support columns (14) at the other end. The multiple support columns (14) have valve seats (15) near one end of the sphere (6). The valve seats (15) are slidably connected to the casting body (1).

2. A stainless steel ball valve casting according to claim 1, characterized in that, Both grooves (11) are provided with a first bolt (16), and both grooves (11) are provided with a first threaded hole (17) on the inner wall of the side near the valve seat (15). The first bolt (16) is threadedly connected to the first threaded hole (17), and one end of the first bolt (16) is in contact with the surface of the valve seat (15).

3. A stainless steel ball valve casting according to claim 1, characterized in that, Both grooves (11) are provided with a protective sleeve (18) in an annular shape inside.

4. A stainless steel ball valve casting according to claim 1, characterized in that, The guide sleeve (9) is provided with a second bolt (19) on the outside, and a second threaded hole (20) is provided on the surface of the guide sleeve (9). The second bolt (19) is threadedly connected to the second threaded hole (20), and one end of the second bolt (19) is in contact with the surface of the valve stem (8).

5. A stainless steel ball valve casting according to claim 1, characterized in that, The upper end of the guide sleeve (9) is provided with multiple connecting posts (21), and the upper end of the multiple connecting posts (21) is provided with a protective cover (22).

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