Forged steel fixed ball valve

Abstract

The utility model relates to a forged steel fixed ball valve which comprises a valve body and a servo motor, the top of the valve body is fixedly connected with a valve seat, the top of the valve seat is provided with a stand column, the top of the stand column is provided with a fixed frame, the top of the valve seat is provided with a valve cover, the top of the valve cover is provided with a limiting plate, the limiting plate is internally provided with a valve rod, and the valve rod is connected with a valve ball in the valve body. A first limiting block is fixedly connected to the top of the valve rod, a first hexagonal prism is fixedly connected to the top of the first limiting block, a connecting pipe is arranged at the top of the first limiting block, a hexagonal hole is formed in the connecting pipe, a rotating shaft is arranged at the output end of the bottom of the servo motor, and a second hexagonal prism is fixedly connected to the bottom of the rotating shaft. The ball valve is automatically opened and closed, manual operation is reduced, the supporting capacity is enhanced, the stability is improved, weight deviation is prevented, and the service life of a product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a forged steel fixed ball valve. Background Art

[0002] Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of the medium. They can be closed tightly by rotating 90 degrees and using a very small torque. Ball valves are widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration and steel industries, and they play an important role in the national economy. The utility model patent with application number: CN202122625533.7 discloses an improved forged steel fixed ball valve, including a valve body, flanges are installed at both ends of the valve body, a valve seat is installed on the upper end face of the valve body, a valve cover is embedded in the upper end face, a limit plate is installed on the upper end of the valve cover by bolts, a valve stem is inserted in the center of the limit plate, the bottom end of the valve stem passes through the valve cover and extends to the inside of the valve body, support rods are installed on both sides of the upper end face of the valve seat, a transmission box is installed on the top of the support rod, a power box is installed on one side of the transmission box, a shaft column is embedded in the bottom of the valve body, the top of the shaft column passes through the valve body and extends to the inside, and a ball is mounted on it, the ball A slot is provided at the top of the valve body, and the slot is engaged with the bottom of the valve stem; the top of the valve stem extends through the transmission box to the inside, and is fitted with a worm gear, and a motor is fixedly installed inside the power box; the output shaft on one side of the motor extends through the transmission box to the inside, and a worm is installed through a coupling, and the worm and the worm gear are meshed with each other; annular grooves are provided on both sides of the valve body, and sealing rings are slidably installed inside the annular grooves; a number of springs are horizontally installed inside the annular grooves, and one end of the springs is fixedly connected to the sealing rings; a number of sealing gaskets are embedded and installed inside the valve seat, and the sealing gaskets are made of rubber; the valve body is made of metal, and the surface of the valve body is coated with an anti-rust coating. However, the overall weight of the transmission box and the power box is tilted to the side, and it is difficult to effectively support them for a long time by relying on two support rods, and the overall stability is not high. Utility Model Content

[0003] The utility model aims to solve the problems existing in the above-mentioned prior art and provides a forged steel fixed ball valve, which can automatically open and close the ball valve to reduce manual operation, enhance the supporting capacity and improve the stability, prevent weight deviation and extend the service life of the product.

[0004] The utility model adopts a technical solution to solve its technical problems: this forged steel fixed ball valve comprises a valve body and a servo motor, the top of the valve body is fixedly connected to a valve seat, the top of the valve seat is installed with a column, there are four columns, a fixing frame is installed on the top of the column, the servo motor is installed inside the fixing frame, a valve cover is arranged on the top of the valve seat, a limiting plate is arranged on the top of the valve cover, a valve stem is arranged inside the limiting plate, the bottom of the valve stem extends to the inside of the valve body, the valve stem is connected to the valve ball inside the valve body, a first limiting block is fixedly connected to the top of the valve stem, a first hexagonal prism is fixedly connected to the top of the first limiting block, a connecting pipe is arranged on the top of the first limiting block, a hexagonal hole is arranged inside the connecting pipe, the first hexagonal prism and the hexagonal hole are plugged into each other, a rotating shaft is arranged on the bottom output end of the servo motor, a second hexagonal prism is fixedly connected to the bottom of the rotating shaft, the second hexagonal prism and the hexagonal hole are plugged into each other, a flange is fixedly connected to the side of the valve body, and the servo motor A transmission line is fixedly connected to the top of the machine, a power line is fixedly connected to the side of the servo motor, the flange is connected and installed with the pipeline, the fixing frame and the servo motor are an integral part, the fixing frame is fixed by four columns, the power line supplies power to the servo motor, the transmission line transmits an opening command to the servo motor, the servo motor is turned on, the servo motor acts on the rotating shaft, the rotating shaft synchronously drives the second hexagonal prism, the connecting pipe, the first hexagonal prism and the valve stem to rotate, the valve stem acts on the valve ball to rotate, the fixed ball valve is opened, the transmission line transmits a closing command to the servo motor, the servo motor acts on the rotating shaft, the rotating shaft, the second hexagonal prism, the connecting pipe, the first hexagonal prism, the valve stem and the valve ball rotate synchronously until the fixed ball valve is closed, completing the operation of the fixed ball valve, and automatically opening and closing the ball valve reduces manual operation, enhances the supporting capacity and improves stability, prevents weight shift and prolongs the service life of the product.

[0005] For further improvement, the limit plate, valve cover and valve seat are provided with movable holes inside, the movable holes reach the inside of the valve body, multiple seals are arranged on the top of the valve body and inside the valve body, the seals are made of rubber, the movable holes facilitate the rotation of the valve stem, and multiple seals prevent leakage on both sides and the top of the ball valve.

[0006] For further improvement, the servo motor, rotating shaft, valve stem and valve body are on the same vertical center line, and the valve stem is at the center of the four columns. The four columns provide effective support while providing effective protection for the valve stem, connecting pipe and rotating shaft.

[0007] To further improve, there are two flanges, which are distributed on the left and right sides of the valve body. Multiple connecting holes are set on the flange surface. The two flanges are respectively connected to two pipes. The multiple connecting holes are used with bolts and nuts to fix the pipes and the valve body.

[0008] To further improve, the top of the column is fixedly connected with a second limit block, the top of the second limit block is fixedly connected with a first threaded column, a through hole is opened inside the fixing frame, the first threaded column and the through hole are plugged into each other, the second limit block supports the bottom of the fixing frame, and a fixing nut is threadedly connected to the surface of the first threaded column. The fixing frame is installed on the top of the column using the second limit block, the first threaded column, the through hole and the fixing nut. The fixing nut is detached from the first threaded column to realize the removal of the fixing frame and the servo motor, which makes installation and removal easy and saves time.

[0009] For further improvement, a protective ring is sleeved on the side surface of the first threaded column, the fixing nut is against the top of the protective ring, the protective ring is in contact with the top of the fixing frame, the protective ring prevents the fixing nut from directly contacting the fixing frame, and reduces the wear and damage of the fixing nut to the fixing frame.

[0010] For further improvement, a third hexagonal column is fixedly connected to the bottom of the column, a second threaded column is fixedly connected to the bottom of the third hexagonal column, a threaded groove is provided on the top of the valve seat, the second threaded column is connected to the threaded groove, the column is installed using the third hexagonal column, the second threaded column and the threaded groove, the wrench and the side surface of the third hexagonal column are clamped together, and turning the wrench facilitates tightening, removal and adjustment of the column.

[0011] For further improvement, the valve seat side is provided with rounded corners, and the fixed frame side is also provided with rounded corners. The setting of the rounded corners increases safety and prevents operators from contacting with sharp right-angled edges.

[0012] The beneficial effects of the utility model are:

[0013] 1. Connect and install through flange and pipeline. The fixing frame and servo motor are integral parts. The fixing frame is fixed by four columns. The power cord supplies power to the servo motor. The transmission line transmits the opening command to the servo motor. The servo motor is turned on and acts on the rotating shaft. The rotating shaft synchronously drives the second hexagonal prism, the connecting pipe, the first hexagonal prism and the valve stem to rotate. The valve stem acts on the valve ball to rotate, and the fixed ball valve is opened. The transmission line transmits the closing command to the servo motor. The servo motor acts on the rotating shaft. The rotating shaft, the second hexagonal prism, the connecting pipe, the first hexagonal prism, the valve stem and the valve ball rotate synchronously until the fixed ball valve is closed, completing the operation of the fixed ball valve. Automatic opening and closing of the ball valve reduces manual operation, enhances the supporting capacity and improves stability, prevents weight shift and prolongs the service life of the product.

[0014] 2. The installation on the top of the column is achieved through the fixing frame using the second limit block, the first threaded column, the through hole and the fixing nut. The fixing nut is detached from the first threaded column to realize the removal of the fixing frame and the servo motor. The installation and removal are easy and save time. The protective ring prevents the fixing nut from directly contacting the fixing frame, reducing the wear and damage of the fixing nut to the fixing frame. The column is installed using the third hexagonal prism, the second threaded column and the threaded groove. The wrench is engaged with the side surface of the third hexagonal prism. Turning the wrench facilitates the tightening, removal and adjustment of the column. The rounded corner setting increases safety and prevents operators from contacting with sharp right-angled edges. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 This is a diagram showing the installation of the connecting pipe of the utility model;

[0017] Figure 3 This is a diagram showing the interior of the connecting pipe of the utility model;

[0018] Figure 4 It is a front view of the structure of the utility model;

[0019] Figure 5 For the utility model Figure 4 Enlarged view of point A in the middle;

[0020] Figure 6 This is a diagram showing the activity of the fixing nut of the utility model;

[0021] Figure 7 For the utility model Figure 4 Enlarged view of point B in the middle;

[0022] Figure 8 This is a diagram showing the activity of the second threaded column of the utility model.

[0023] Explanation of the reference numerals in the accompanying drawings: 1. valve body; 2. servo motor; 3. valve seat; 4. column; 5. fixing frame; 6. valve cover; 7. limit plate; 8. valve stem; 9. first limit block; 10. first hexagonal prism; 11. connecting pipe; 12. hexagonal hole; 13. rotating shaft; 14. second hexagonal prism; 15. flange; 16. transmission line; 17. power line; 18. second limit block; 19. first threaded column; 20. through hole; 21. fixing nut; 22. protective ring; 23. third hexagonal prism; 24. second threaded column; 25. thread groove. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-8 This embodiment is further described:

[0025] like Figure 1-8As shown: In this embodiment, a forged steel fixed ball valve includes a valve body 1 and a servo motor 2. A valve seat 3 is fixedly connected to the top of the valve body 1. A column 4 is installed on the top of the valve seat 3. There are four columns 4. A fixing frame 5 is installed on the top of the column 4. The servo motor 2 is installed inside the fixing frame 5. A valve cover 6 is arranged on the top of the valve seat 3. A limit plate 7 is arranged on the top of the valve cover 6. A valve stem 8 is arranged inside the limit plate 7. The bottom of the valve stem 8 extends into the inside of the valve body 1. The valve stem 8 is connected to the valve ball inside the valve body 1. A first limit block 9 is fixedly connected to the top of the valve stem 8. A first hexagonal prism 10 is fixedly connected to the top of the first limit block 9. A connecting pipe 11 is arranged on the top of the first limit block 9. A hexagonal hole 12 is arranged inside the connecting pipe 11. The first hexagonal prism 10 and the hexagonal hole 12 are plugged into each other. A rotating shaft 13 is provided at the bottom output end of the servo motor 2, and a second hexagonal prism 14 is fixedly connected to the bottom of the rotating shaft 13, and the second hexagonal prism 14 is plugged into the hexagonal hole 12. A flange 15 is fixedly connected to the side of the valve body 1, a transmission line 16 is fixedly connected to the top of the servo motor 2, and a power line 17 is fixedly connected to the side of the servo motor 2. There are movable holes inside the limit plate 7, the valve cover 6 and the valve seat 3, and the movable holes reach the inside of the valve body 1. Multiple sealing members are arranged on the top of the valve body 1 and inside the valve body 1, and the sealing members are made of rubber. The servo motor 2, the rotating shaft 13, the valve stem 8 and the valve body 1 are on the same vertical center line, and the valve stem 8 is at the center of the four columns. There are two flanges 15, and the two flanges 15 are distributed on the left and right sides of the valve body 1, and multiple connecting holes are arranged on the surface of the flange 15.

[0026] like Figure 5-8 As shown: a second limit block 18 is fixedly connected to the top of the column 4, a first threaded column 19 is fixedly connected to the top of the second limit block 18, a through hole 20 is opened inside the fixing frame 5, the first threaded column 19 and the through hole 20 are plugged into each other, the second limit block 18 supports the bottom of the fixing frame 5, a fixing nut 21 is threadedly connected to the surface of the first threaded column 19, a protective ring 22 is sleeved on the side surface of the first threaded column 19, the fixing nut 21 abuts against the top of the protective ring 22, the protective ring 22 contacts the top of the fixing frame 5, a third hexagonal column 23 is fixedly connected to the bottom of the column 4, a second threaded column 24 is fixedly connected to the bottom of the third hexagonal column 23, a threaded groove 25 is opened at the top of the valve seat 3, the second threaded column 24 is connected to the threaded groove 25, a rounded corner is set on the side of the valve seat 3, and a rounded corner is also set on the side of the fixing frame 5.

[0027] When the utility model is in use: two flanges 15 are respectively connected to two pipes, and multiple connection holes are used to fix the pipes and the valve body with bolts and nuts, and four columns 4 are obtained, and the second threaded column 24 of one of the columns 4 is threadedly connected with the threaded groove 25 on the top of the valve seat 3. With reference to this operation, the connection of the four columns 4 is completed, and the wrench and the side surface of the third hexagonal column 23 are mutually engaged. Turning the wrench facilitates the tightening and adjustment of the column 4, and the installation of the four columns 4 is completed. The connecting pipe 11 is obtained, and the hexagonal hole 12 of the connecting pipe 11 corresponds to and is plugged with the first hexagonal column 10, and the first limit block 9 is effective Block the connecting tube 11, the connecting tube 11 is effectively placed, obtain the fixing frame 5, the fixing frame 5 and the servo motor 2 are an integral part, the four through holes 20 of the fixing frame 5 correspond to and are plugged into the four first threaded columns 19, and at the same time, the second hexagonal column 14 at the bottom of the rotating shaft 13 is correspondingly plugged into the hexagonal hole 12, the second limit block 18 effectively blocks the fixing frame 5, the fixing frame 5 is effectively placed, obtain four protective rings 22, the four protective rings 22 are respectively sleeved with the four first threaded columns 19, obtain four fixing nuts 21, and the four fixing nuts 21 are respectively threadedly connected with the four first threaded columns 19, The fixing nut 21 is against the top of the protective ring 22, and the protective ring 22 is in contact with the top of the fixing frame 5. The four fixing nuts 21 are tightened with a wrench. The protective ring 22 prevents the fixing nut 21 from directly contacting the fixing frame 5, reducing the wear and tear of the fixing nut 21 on the fixing frame 5. The fixing frame 5 and the servo motor 2 are installed. The four columns 4 provide effective support while providing effective protection for the valve stem 8, the connecting pipe 11 and the rotating shaft 13. The power cord 17 supplies power to the servo motor 2, and the transmission line 16 transmits the opening command to the servo motor 2. The servo motor 2 is turned on, and the servo motor 2 acts on the rotating shaft 1. 3. The rotating shaft 13 synchronously drives the second hexagonal prism 14, the connecting tube 11, the first hexagonal prism 10 and the valve stem 8 to rotate. The valve stem 8 acts on the valve ball to rotate, and the fixed ball valve is opened. The transmission line 16 transmits the closing command to the servo motor 2. The servo motor 2 acts on the rotating shaft 13. The rotating shaft 13, the second hexagonal prism 14, the connecting tube 11, the first hexagonal prism 10, the valve stem 8 and the valve ball rotate synchronously until the fixed ball valve is closed, completing the operation of the fixed ball valve. Automatic opening and closing of the ball valve reduces manual operation, enhances the supporting capacity and improves stability, prevents weight shift and prolongs the service life of the product.

[0028] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A forged steel fixed ball valve, comprising a valve body (1) and a servo motor (2), characterized in that: The valve body (1) is fixedly connected to the top of a valve seat (3), a column (4) is installed on the top of the valve seat (3), there are four columns (4), a fixing frame (5) is installed on the top of the column (4), the servo motor (2) is installed inside the fixing frame (5), a valve cover (6) is arranged on the top of the valve seat (3), a limit plate (7) is arranged on the top of the valve cover (6), a valve stem (8) is arranged inside the limit plate (7), the bottom of the valve stem (8) extends into the inside of the valve body (1), the valve stem (8) is connected to the valve ball inside the valve body (1), the top of the valve stem (8) is fixedly connected to a first limit block (9), the top of the first limit block (9) is fixedly connected A first hexagonal prism (10) is provided, a connecting tube (11) is provided on the top of the first limit block (9), a hexagonal hole (12) is provided inside the connecting tube (11), the first hexagonal prism (10) and the hexagonal hole (12) are plugged into each other, a rotating shaft (13) is provided at the bottom output end of the servo motor (2), a second hexagonal prism (14) is fixedly connected to the bottom of the rotating shaft (13), the second hexagonal prism (14) and the hexagonal hole (12) are plugged into each other, a flange (15) is fixedly connected to the side of the valve body (1), a transmission line (16) is fixedly connected to the top of the servo motor (2), and a power line (17) is fixedly connected to the side of the servo motor (2).

2. A forged steel fixed ball valve according to claim 1, characterized in that: The limit plate (7), the valve cover (6) and the valve seat (3) are provided with movable holes inside, and the movable holes reach the inside of the valve body (1). A plurality of sealing members are arranged on the top of the valve body (1) and inside the valve body (1), and the sealing members are made of rubber.

3. A forged steel fixed ball valve according to claim 1, characterized in that: The servo motor (2), the rotating shaft (13), the valve stem (8) and the valve body (1) are on the same vertical center line, and the valve stem (8) is located at the center of the four columns.

4. A forged steel fixed ball valve according to claim 1, characterized in that: There are two flanges (15), which are distributed on the left and right sides of the valve body (1), and a plurality of connection holes are arranged on the surface of the flanges (15).

5. The forged steel trunnion mounted ball valve according to claim 1, characterized in that: The top of the column (4) is fixedly connected with a second limit block (18), the top of the second limit block (18) is fixedly connected with a first threaded column (19), a through hole (20) is opened inside the fixing frame (5), the first threaded column (19) and the through hole (20) are plugged into each other, the second limit block (18) supports the bottom of the fixing frame (5), and a fixing nut (21) is threadedly connected to the surface of the first threaded column (19).

6. A forged steel trunnion mounted ball valve according to claim 5, characterized in that: A protective ring (22) is sleeved on the side surface of the first threaded column (19), a fixing nut (21) abuts against the top of the protective ring (22), and the protective ring (22) contacts the top of the fixing frame (5).

7. The forged steel trunnion mounted ball valve according to claim 1, characterized in that: The bottom of the column (4) is fixedly connected to a third hexagonal column (23), the bottom of the third hexagonal column (23) is fixedly connected to a second threaded column (24), a threaded groove (25) is provided on the top of the valve seat (3), and the second threaded column (24) is connected to the threaded groove (25).

8. The forged steel trunnion mounted ball valve according to claim 1, characterized in that: The side of the valve seat (3) is provided with rounded corners, and the side of the fixing frame (5) is also provided with rounded corners.

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