Two-piece cast steel fixed ball valve

Abstract

The utility model discloses a two-piece cast steel fixed ball valve, which is applied to the field of valves and is characterized in that a ball valve is rotatably connected inside a valve body, connecting pipes are fixedly mounted on two sides of the valve body, and flanges are fixedly mounted on two sides of the ball valve and on the right sides of the connecting pipes. Connecting openings are formed in the right side of the interior of the connecting pipe and the two sides of the interior of the valve body, a valve rod is fixedly installed at the top of the ball valve, adherends in the valve body can be conveniently cleaned, and the situation that the using effect of the internal ball valve is affected is avoided. The top of the valve body is fixedly provided with an outer sleeve, and a gland is fixedly installed at the top of the outer sleeve. A first check block and a second check block are fixedly installed on the right side and the left side of the top of the gland, a rotating piece is fixedly installed on the top of the surface of the valve rod, and a limiting block is fixedly installed on the right side of the rotating piece, so that rotation of the ball valve in the valve body is effectively avoided, and use of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the field of valves, and particularly relates to a two-piece cast steel fixed ball valve. Background Art

[0002] Cast steel ball valve is a valve whose opening and closing parts (ball) are driven by the valve stem and rotate around the axis of the valve stem. It is mainly used to cut off or connect the medium in the pipeline, and can also be used for fluid regulation and control. Cast steel two-piece ball valve and flange gate valve are valves of the same type, the difference is that its closing part is a ball, which rotates around the center line of the valve body to achieve opening and closing.

[0003] After long-term use of the existing ball valve device, the inside of the valve body is prone to adhesion of the adhesion inside the liquid, which is easy to affect the use of the ball valve inside the valve body, thereby affecting the new flow medium inside the valve body. At the same time, when the existing device is in use, due to the fast internal fluid flow rate, the ball valve inside the valve body is prone to deflect under the impact of high-speed fluid, resulting in increased fluid flow or even leakage, reducing the use of the device. Utility Model Content

[0004] The utility model aims to provide a two-piece cast steel fixed ball valve, which has the advantages of being easy to clean and install the device and convenient to fix the ball valve to avoid deflection.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions: a two-piece cast steel fixed ball valve, the inside of the valve body is rotatably connected to the ball valve, connecting pipes are fixedly installed on both sides of the valve body, flanges are fixedly installed on the outer sides of the joints between the valve body and the connecting pipe, connecting ports are provided on the contact surfaces of the joints between the valve body and the connecting pipe, connecting grooves are provided inside the connecting ports, and a sealing ring gasket is fixedly installed inside the connecting groove, a valve stem is fixedly installed on the top of the ball valve, a jacket is fixedly installed on the top of the valve stem, a pressure cover is fixedly installed on the top of the jacket, stopper one and stopper two are fixedly installed on the right and left sides of the top of the pressure cover, a rotating plate is fixedly installed on the top of the valve stem surface, and a limiting block is fixedly installed on the right side of the rotating plate.

[0006] The above technical solution is adopted: by installing flanges on both sides of the valve body, turning the disassembly bolts, disassembling and separating the flange on the connecting pipe surface and the flange on the valve body surface, and then cleaning the adhesion inside the valve body to avoid affecting the use effect of the internal ball valve and improve the flow of the medium inside the valve body. Stopper one and stopper two are installed on the top of the pressure cover, and the rotating piece is limited by stopper one and stopper two to prevent the rotation of the rotating piece from driving the internal valve stem to rotate, effectively preventing the ball valve inside the valve body from deflecting and improving the use of the device.

[0007] The utility model is further configured that bolts are fixedly installed inside the flange.

[0008] Adopting the above technical solution makes it easy to fix the connection.

[0009] The utility model is further configured that sealing connection rings are fixedly installed on both sides of the valve body, and sealing gaskets are fixedly installed on the top and bottom of the valve body.

[0010] The above technical solution is adopted to facilitate sealing of the connection between the ball valve and the inner part of the valve body.

[0011] The utility model is further configured that a filler is fixedly installed inside the outer sleeve.

[0012] Adopting the above technical solution: improving the internal airtightness of the device.

[0013] The utility model is further configured that a handle is fixedly installed on the left side of the rotating piece.

[0014] Adopting the above technical solution: it is easy to rotate the ball valve.

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. The utility model installs a detachable cleaning structure on both sides of the valve body. By installing flanges on both sides of the valve body and rotating the disassembly bolts, the flanges on the surface of the connecting pipe and the flanges on the surface of the valve body are disassembled and separated, and then the adhesion inside the valve body is cleaned to avoid affecting the use effect of the internal ball valve and improve the flow of the medium inside the valve body;

[0017] 2. The utility model installs a ball valve deflection prevention structure on the top of the gland, and installs block one and block two on the top of the gland. Block one and block two are used to limit the rotating piece to prevent the rotating piece from rotating and driving the internal valve stem to rotate, effectively preventing the ball valve inside the valve body from rotating, and improving the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0020] Figure 3 It is a top view of the utility model;

[0021] Figure 4 The utility model is Figure 2 A partial enlarged view of point A in the middle.

[0022] Figure numerals: 1. valve body; 2. ball valve; 3. connecting pipe; 4. flange; 5. bolt; 6. connecting port; 7. connecting groove; 8. sealing ring; 9. sealing connecting ring; 10. sealing gasket; 11. valve stem; 12. outer sleeve; 13. packing; 14. gland; 15. stopper one; 16. stopper two; 17. rotating piece; 18. handle; 19. limit block. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] Embodiment 1:

[0025] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A two-piece cast steel fixed ball valve, the ball valve 2 is rotatably connected inside the valve body 1, connecting pipes 3 are fixedly installed on both sides of the valve body 1, flanges 4 are fixedly installed on the outer sides of the joints between the valve body 1 and the connecting pipe 3, and connecting ports 6 are provided on the contact surfaces of the joints between the valve body 1 and the connecting pipe 3, and connecting grooves 7 are provided inside the connecting ports 6, and sealing rings 8 are fixedly installed inside the connecting grooves 7, and a valve stem 11 is fixedly installed on the top of the ball valve 2. By installing flanges 4 on both sides of the valve body 1, rotating the disassembly bolts 5, disassembling and separating the flanges 4 on the surface of the connecting pipe 3 and the flanges 4 on the surface of the valve body 1, the adhesion inside the valve body 1 is cleaned to avoid affecting the use effect of the internal ball valve 2 and improve the flow of the medium inside the valve body 1.

[0026] refer to Figure 1 Bolts 5 are fixedly installed inside the flange 4. By setting the bolts 5, the connection is easily fixed.

[0027] refer to Figure 4 Sealing connection rings 9 are fixedly installed on both sides of the valve body 1, and sealing gaskets 10 are fixedly installed on the top and bottom of the valve body 1. By providing the sealing connection rings 9 and the sealing gaskets 10, it is convenient to seal the connection between the ball valve 2 and the internal connection of the valve body 1.

[0028] Brief description of the use process: manually turn and remove the bolt 5, disassemble and separate the flange 4 on the surface of the connecting pipe 3 and the flange 4 on the surface of the valve body 1, and then clean the adhesion inside the valve body 1 to avoid affecting the use effect of the internal ball valve 2 and improve the flow of the medium inside the valve body 1.

[0029] Embodiment 2:

[0030] refer to Figure 1 , Figure 2 , Figure 3A two-piece cast steel fixed ball valve, a sleeve 12 is fixedly installed on the top of the valve stem 11, a gland 14 is fixedly installed on the top of the sleeve 12, a block 15 and a block 2 16 are fixedly installed on the right and left sides of the top of the gland 14, a rotating piece 17 is fixedly installed on the top of the surface of the valve stem 11, a limit block 19 is fixedly installed on the right side of the rotating piece 17, and a block 15 and a block 2 16 are installed on the top of the gland 14. The rotating piece 17 is limited and blocked by the block 15 and the block 2 16 to prevent the rotating piece 17 from rotating and driving the internal valve stem 11 to rotate, effectively preventing the ball valve 2 inside the valve stem 11 from deflecting, and improving the use of the device.

[0031] refer to Figure 2 A filler 13 is fixedly installed inside the outer casing 12. By providing the filler 13, the airtightness of the interior of the device is improved.

[0032] refer to Figure 3 A handle 18 is fixedly installed on the left side of the rotating piece 17. By setting the handle 18, it is convenient to rotate the ball valve 2.

[0033] Brief description of the use process: Stopper 15 and stopper 2 16 are installed on the top of the gland 14, and stopper 15 and stopper 2 16 limit the rotation of the rotating piece 17 to prevent the rotation of the rotating piece 17 from driving the internal valve stem 11 to rotate, effectively preventing the ball valve 2 inside the valve stem 11 from deflecting, and improving the use of the device.

[0034] 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, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A two-piece cast steel trunnion-mounted ball valve, comprising a valve body (1), characterized in that: The valve body (1) is rotatably connected to a ball valve (2) inside, connecting pipes (3) are fixedly installed on both sides of the valve body (1), flanges (4) are fixedly installed on the outer sides of the joints between the valve body (1) and the connecting pipe (3), connecting ports (6) are provided on the contact surfaces of the joints between the valve body (1) and the connecting pipe (3), connecting slots (7) are provided inside the connecting ports (6), a sealing ring (8) is fixedly installed inside the connecting slot (7), a valve stem (11) is fixedly installed on the top of the ball valve (2); a sleeve (12) is fixedly installed on the top of the valve stem (11), a gland (14) is fixedly installed on the top of the sleeve (12), a stopper 1 (15) and a stopper 2 (16) are fixedly installed on the right and left sides of the top of the gland (14), a rotating plate (17) is fixedly installed on the top of the surface of the valve stem (11), and a limit block (19) is fixedly installed on the right side of the rotating plate (17).

2. A two-piece cast steel trunnion mounted ball valve according to claim 1, characterized in that: Bolts (5) are fixedly installed inside the flange (4).

3. A two-piece cast steel trunnion mounted ball valve according to claim 1, characterized in that: Sealing connection rings (9) are fixedly installed on both sides of the interior of the valve body (1), and sealing gaskets (10) are fixedly installed on the top and bottom of the interior of the valve body (1).

4. A two-piece cast steel trunnion mounted ball valve according to claim 1, characterized in that: A filler (13) is fixedly installed inside the outer casing (12).

5. A two-piece cast steel trunnion mounted ball valve according to claim 1, characterized in that: A handle (18) is fixedly mounted on the left side of the rotating piece (17).

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