High-strength forged steel ball valve

Abstract

The utility model relates to the technical field of ball valves, in particular to a high-strength forged steel ball valve which comprises a high-strength ball valve body, a ball body is installed in the high-strength ball valve body, a limiting control rod is fixed to the bottom of a valve rod, and the bottom end of the limiting control rod and a second limiting hole are installed in a limiting mode. And rotating rods are rotationally installed on the two sides of the protective shell, a scraping plate is fixed to one ends of the two rotating rods through bolts, and one side of the scraping plate is attached to the interior of the medium channel for use. The first hand wheel is rotated to drive the scraping plate to move along the inner wall of the medium channel, so that particulate pollutants attached to the interior of the medium channel are scraped, media passing through the interior of the medium channel are washed away, the cleanliness of the inner wall of the medium channel is guaranteed, and when the inner wall of the medium channel is cleaned, the cleaning efficiency is improved. The whole ball valve does not need to be disassembled and assembled, great convenience is achieved, and normal use of the ball valve cannot be affected.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically a high-strength forged steel ball valve. Background Technology

[0002] The working principle of forged steel ball valves is to open or close the valve by rotating the valve stem. They are usually full-bore ball valves or 90-degree angle switches. They are lightweight, small in size, can be made into large diameter valves, have reliable sealing, simple structure, and are easy to maintain. The sealing surface and the ball surface are always in a closed state, which makes them less susceptible to erosion by the medium. They are widely used in various industries.

[0003] In the use of a certain type of high-strength forged steel ball valve, the internal channel of the ball inside the valve body is eroded by the medium. Over time, particles in the medium will adhere to the inner wall of the channel inside the ball. Cleaning the inner wall of the ball requires disassembling the entire ball valve, which is very cumbersome and affects the use of the ball valve.

[0004] Therefore, a high-strength forged steel ball valve is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a high-strength forged steel ball valve to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: A high-strength forged steel ball valve includes a high-strength ball valve body, a ball installed inside the high-strength ball valve body, a sealing base sealed at the bottom of the high-strength ball valve body, a valve seat at the top of the high-strength ball valve body, a valve stem sealed inside the valve seat, a medium channel opened inside the ball, a protective shell fixedly installed inside the medium channel, and a component installed inside the protective shell via a rotating shaft. The first transmission rod has a second limiting hole at the top of the sphere, and the top end of the first transmission rod extends into the second limiting hole. The top end of the first transmission rod has a first limiting hole. A second transmission rod is rotatably installed inside the valve stem. The bottom of the second transmission rod passes through the limiting control rod and is limited and installed with the first limiting hole. A limiting control rod is fixed at the bottom of the valve stem, and the bottom end of the limiting control rod is limited and installed with the second limiting hole. Rotary rods are rotatably installed on both sides of the protective shell. One end of each of the two rotating rods is fixed with a scraper by bolts. One side of the scraper is used to fit against the inside of the medium channel.

[0006] Preferably, a second handwheel is fixed to the outside of the valve stem, and the top of the second transmission rod extends out of the valve stem, with a first handwheel mounted on the top of the second transmission rod.

[0007] Preferably, a plurality of sealing rubber rings are installed on the outer side of the valve stem, and the sealing rubber rings are sealed to the inside of the valve seat.

[0008] Preferably, a sealing seat is installed on each of the two sides inside the high-strength ball valve body, and the two sealing seats are used to seal the ball.

[0009] Preferably, a third transmission rod is installed between the two rotating rods, and the third transmission rod is located inside the protective housing.

[0010] Preferably, the outer side of the third transmission rod is fixedly sleeved with a second bevel tooth, and the inside of the protective shell is installed with a first bevel tooth. One end of the first bevel tooth is fixedly connected to the bottom of the first transmission rod, and the first bevel tooth and the second bevel tooth are connected by tooth meshing.

[0011] Compared with the prior art, this utility model provides a high-strength forged steel ball valve, which has the following beneficial effects:

[0012] Rotating the first handwheel moves the scraper along the inner wall of the medium channel, scraping away particulate contaminants adhering to the inside of the medium channel. As the medium passes through the medium channel, it is flushed away, ensuring the cleanliness of the inner wall of the medium channel. Cleaning the inner wall of the medium channel does not require disassembling the entire ball valve, which is very convenient and does not affect the normal use of the ball valve. Attached Figure Description

[0013] Figure 1 This is a cross-sectional structural diagram of the main body of this utility model;

[0014] Figure 2 This is a cross-sectional view of the sphere of this utility model;

[0015] Figure 3 This is a top view of the sphere of this utility model.

[0016] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A;

[0017] Figure 5 For the purpose of this invention Figure 2 A magnified structural diagram at point B in the middle.

[0018] In the diagram: 1. High-strength ball valve body; 2. Medium passage; 3. Sealing base; 4. Ball; 5. Sealing seat; 6. Valve seat; 7. Sealing rubber ring; 8. First handwheel; 9. Second handwheel; 10. Valve stem; 11. Limit control rod; 12. Protective housing; 13. First transmission rod; 14. Rotating rod; 15. Scraper; 16. First limit hole; 17. Second transmission rod; 18. Second limit hole; 19. First bevel tooth; 20. Third transmission rod; 21. Second bevel tooth. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: A ball 4 is installed inside the high-strength ball valve body 1. A sealing base 3 is sealed at the bottom of the high-strength ball valve body 1. A valve seat 6 is provided at the top of the high-strength ball valve body 1. A valve stem 10 is sealed inside the valve seat 6. A medium channel 2 is opened inside the ball 4. A protective shell 12 is fixedly installed inside the medium channel 2. A first transmission rod 13 is installed inside the protective shell 12 via a rotating shaft. A second limiting hole 18 is opened at the top of the ball 4. The top end of the first transmission rod 13 extends into the second limiting hole 18. A first limiting hole 16 is opened at the top of the first transmission rod 13. The valve stem 10 is inside... A second transmission rod 17 is rotatably mounted. The bottom of the second transmission rod 17 extends through the interior of the limit control rod 11 and is limited and installed in the first limit hole 16. The bottom of the valve stem 10 is fixed with the limit control rod 11, and the bottom end of the limit control rod 11 is limited and installed in the second limit hole 18. Rotary rods 14 are rotatably mounted on both sides of the protective shell 12. One end of the two rotary rods 14 is fixed with a scraper 15 by bolts. One side of the scraper 15 is used to fit against the interior of the medium channel 2. A second handwheel 9 is fixed on the outside of the valve stem 10, and the top of the second transmission rod 17 extends out of the interior of the valve stem 10. A first handwheel 8 is mounted on the top of the second transmission rod 17.

[0021] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in use, the ball 4 is installed inside the high-strength ball valve body 1, and the sealing base 3 is sealed and installed inside the high-strength ball valve body 1, while being inserted into the bottom of the ball 4. Then, the valve stem 10 is sealed and installed on the top of the valve seat 6. The limit control rod 11 installed at the bottom of the valve stem 10 is inserted into the high-strength ball valve body 1 and into the second limit hole 18. Simultaneously, the bottom end of the second transmission rod 17, which is rotatably installed inside the valve stem 10, is inserted into the first limit hole 16 opened at the top of the first transmission rod 13, thereby controlling the rotation of the first transmission rod 13. Therefore, rotating the second handwheel 9 can drive the valve stem 10 and the limit control rod 11 to rotate simultaneously. The rotation of the limit control rod 11 can drive the ball 4 to rotate inside the high-strength ball valve body 1, thereby controlling the rotation of the ball. The valve is opened and closed by rotating the first handwheel 8, which drives the second transmission rod 17 to rotate. The rotation of the second transmission rod 17 drives the first transmission rod 13 to rotate synchronously. The rotation of the first transmission rod 13 drives the rotating rod 14 to rotate. Since a scraper 15 is fixed to one end of the rotating rod 14 by bolts and the scraper 15 is in contact with the inner wall of the medium channel 2, the rotation of the rotating rod 14 drives the scraper 15 to move along the inner wall of the medium channel 2, thereby scraping off the particulate contaminants adhering to the inside of the medium channel 2. As the medium passes through the medium channel 2, it is flushed away, thus ensuring the cleanliness of the inner wall of the medium channel 2. When cleaning the inner wall of the medium channel 2, there is no need to disassemble the entire ball valve, which is very convenient and does not affect the normal use of the ball valve.

[0022] Example 2: Multiple sealing rubber rings 7 are installed on the outside of the valve stem 10, and the sealing rubber rings 7 are sealed to the inside of the valve seat 6. A sealing seat 5 is installed on each side of the inside of the high-strength ball valve body 1, and the two sealing seats 5 are used to seal the ball 4. A third transmission rod 20 is installed between the two rotating rods 14, and the third transmission rod 20 is located inside the protective shell 12. A second bevel tooth 21 is fixedly sleeved on the outside of the third transmission rod 20, and a first bevel tooth 19 is installed inside the protective shell 12. One end of the first bevel tooth 19 is fixedly connected to the bottom of the first transmission rod 13, and the first bevel tooth 19 and the second bevel tooth 21 are connected by tooth meshing.

[0023] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, after the valve stem 10 is installed inside the valve seat 6, the multiple sealing rubber rings 7 installed on the outside of the valve stem 10 will be sealed to the inside of the valve seat 6, thereby preventing media leakage. Since a sealing seat 5 is installed on each side of the high-strength ball valve body 1, the sealing seat 5 can ensure the sealing between the ball valve and the outer wall of the ball 4 when the ball valve is closed. The rotation of the first transmission rod 13 can drive the first bevel tooth 19 to rotate synchronously. The rotation of the first bevel tooth 19 can drive the second bevel tooth 21 to rotate. The rotation of the second bevel tooth 21 can drive the third transmission rod 20 to rotate. The rotation of the third transmission rod 20 can drive the two rotating rods 14 to rotate synchronously, thereby driving the scraper 15 to scrape along the inside of the media channel 2. Since the length of the protective shell 12 is equal to the length of the media channel 2, the scraping of the scraper 15 can completely remove the particulate contaminants adhering to the inside of the media channel 2, improving the cleaning effect.

[0024] Working principle: The valve stem 10 is sealed and installed on the top of the valve seat 6. The limit control rod 11 installed at the bottom of the valve stem 10 is inserted into the high-strength ball valve body 1 and into the second limit hole 18. At the same time, the bottom end of the second transmission rod 17, which is rotatably installed inside the valve stem 10, is inserted into the first limit hole 16 opened at the top of the first transmission rod 13, thereby controlling the rotation of the first transmission rod 13. Therefore, rotating the second handwheel 9 can drive the valve stem 10 and the limit control rod 11 to rotate simultaneously. The rotation of the limit control rod 11 can drive the ball 4 to rotate inside the high-strength ball valve body 1, thereby opening and closing the ball valve. Rotating the first handwheel 8 can drive the second transmission rod 17. The rotation of the second transmission rod 17 drives the first transmission rod 13 to rotate synchronously, which in turn drives the rotating rod 14 to rotate. Since a scraper 15 is fixed to one end of the rotating rod 14 by bolts and the scraper 15 is in contact with the inner wall of the medium channel 2, the rotation of the rotating rod 14 drives the scraper 15 to move along the inner wall of the medium channel 2, thereby scraping off the particulate contaminants adhering to the inside of the medium channel 2. As the medium passing through the medium channel 2 is flushed away, the cleanliness of the inner wall of the medium channel 2 is ensured. When cleaning the inner wall of the medium channel 2, it is not necessary to disassemble the entire ball valve, which is very convenient and does not affect the normal use of the ball valve.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-strength forged steel ball valve comprising a high-strength ball valve body (1), characterized in that: The high-strength ball valve body (1) is internally provided with a ball (4), the bottom of the high-strength ball valve body (1) is sealingly provided with a sealing base (3), the top of the high-strength ball valve body (1) is provided with a valve seat (6), the inside of the valve seat (6) is sealingly provided with a valve rod (10), the inside of the ball (4) is provided with a medium channel (2), the inside of the medium channel (2) is fixedly provided with a protective shell (12), the inside of the protective shell (12) is rotatably provided with a first transmission rod (13), the top of the ball (4) is provided with a second limiting hole (18), the top end of the first transmission rod (13) extends into the second limiting hole (18), the top of the first transmission rod (13) is provided with a first limiting hole (16), the inside of the valve rod (10) is rotatably provided with a second transmission rod (17), the bottom of the second transmission rod (17) penetrates through the inside of a limiting control rod (11) and is limitingly provided with the first limiting hole (16), the bottom of the valve rod (10) is fixedly provided with the limiting control rod (11), the bottom end of the limiting control rod (11) is limitingly provided with the second limiting hole (18), the two sides of the protective shell (12) are rotatably provided with a rotating rod (14), one end of the two rotating rods (14) is fixedly provided with a scraper (15) through bolts, one side of the scraper (15) is used in close contact with the inside of the medium channel (2).

2. A high strength wrought steel ball valve according to claim 1, characterized in that: The outside of the valve rod (10) is fixedly provided with a second hand wheel (9), and the top of the second transmission rod (17) extends out of the inside of the valve rod (10), and the top of the second transmission rod (17) is provided with a first hand wheel (8).

3. A high strength, wrought steel ball valve according to claim 1, characterized in that: The outside of the valve rod (10) is provided with a plurality of sealing rubber rings (7), and the sealing rubber rings (7) are sealingly connected with the inside of the valve seat (6).

4. A high strength, wrought steel ball valve according to claim 1, characterized in that: The inside of the high-strength ball valve body (1) is provided with a sealing seat (5) on each side, and the two sealing seats (5) are sealingly used with the ball (4).

5. A high strength, wrought steel ball valve according to claim 1, characterized in that: A third transmission rod (20) is installed between the two rotating rods (14), and the third transmission rod (20) is located in the inside of the protective shell (12).

6. A high strength, wrought steel ball valve according to claim 5, characterized in that: The outside of the third transmission rod (20) is fixedly provided with a second bevel gear (21), and the inside of the protective shell (12) is provided with a first bevel gear (19), one end of the first bevel gear (19) is fixedly connected with the bottom of the first transmission rod (13), and the first bevel gear (19) and the second bevel gear (21) are connected through tooth meshing.

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