A fast-opening and closing high-pressure ball valve

Abstract

This utility model discloses a fast-opening and closing high-pressure ball valve, relating to the field of high-pressure ball valve technology. It includes a valve body and a valve core. The valve body has an opening at its top that communicates with a spherical cavity. A bearing is fixedly connected to the inner side of the opening near the top. A valve stem is fixedly connected to the top of the valve core. The top of the valve stem extends through the inner ring of the bearing to the outer side of the valve body and is fixedly connected to a gear. A second sealing ring is fitted on the outer side of the valve stem, located at the connection between the opening and the spherical cavity. A servo cylinder is fixedly connected to the top of the valve body. A rack is fixedly connected to the telescopic end of the servo cylinder, and the rack meshes with the gear. A cavity is opened on the valve body, communicating between the connecting part and the spherical groove. A filter plate is installed inside the cavity. This utility model, by setting a servo cylinder, gear, and rack, uses the servo cylinder to push the rack to move, which in turn drives the gear to rotate, thereby rotating the valve core and achieving automatic valve opening and closing, thus improving the valve's opening and closing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure ball valve technology, specifically a high-pressure ball valve that can be quickly opened and closed. Background Technology

[0002] High-pressure ball valves are valves that use a ball-shaped opening and closing element, which is driven by the valve stem and rotates around the axis of the valve stem. They are a major type of valve and are widely used in industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmaceutical industry, water conservancy, power, municipal engineering, and steel.

[0003] Existing high-pressure ball valves require manual operation by turning the handle to open and close. Since personnel are not often present at the valve, there is a delay in opening and closing, resulting in low valve efficiency. Furthermore, the handle of existing high-pressure ball valves is connected to the valve core via the valve stem, and the connection between the valve stem and the handle is exposed on the outside of the valve body. This makes it susceptible to corrosion from moisture in the outside air, which can render the handle unusable and affect the opening and closing of the valve. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology in terms of low opening and closing efficiency and to provide a high-pressure ball valve that can be opened and closed quickly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fast-opening and closing high-pressure ball valve, comprising a valve body and a valve core. The valve body has a spherical cavity, and through holes communicating with the spherical cavity are provided on both the left and right sides of the valve body. The valve core is a sphere located within the spherical cavity, and a perforation is provided on the valve core. A first sealing ring, tightly fitting the valve core, is provided at the connection between the spherical cavity and the through hole. Connecting portions are provided on both the left and right sides of the valve body. An opening communicating with the spherical cavity is provided on the top of the valve body, and the inner side of the opening is near... A bearing is fixedly connected near the top, and a valve stem is fixedly connected to the top of the valve core. The top of the valve stem extends through the inner ring of the bearing to the outside of the valve body and is fixedly connected to a gear. A second sealing ring is sleeved on the outside of the valve stem. The second sealing ring is located at the connection between the opening and the spherical cavity. A servo cylinder is fixedly connected to the top of the valve body. A rack is fixedly connected to the telescopic end of the servo cylinder, and the rack meshes with the gear. A cavity is opened on the valve body. The cavity communicates between the connecting part and the spherical groove. A filter plate is installed in the cavity.

[0006] As described above, the connecting part is a round tube, and both the valve body and the connecting part are metal castings. The connecting part is integrally connected to the valve body, and the outer wall of the connecting part is provided with external threads.

[0007] As described above, a U-shaped fixing plate is fixedly connected inside the cavity, and a slot is provided on the inner side of the fixing plate. The filter plate is inserted into the slot, the top of the cavity is open, and a cover plate is fixed to the top of the valve body at the opening by bolts.

[0008] As described above, the outer periphery of the filter plate is covered with a sealing gasket, and the outer side of the sealing gasket is tightly fitted with the slot and the cover plate. The cover plate has a groove on its periphery, and a third sealing ring is fitted inside the groove. The third sealing ring is tightly fitted with the side wall of the cavity.

[0009] As described above, a linear guide rail with a slider is fixedly connected to the top of the valve body, the rack is fixedly connected to the front side of the slider, and the telescopic end of the servo cylinder is fixedly connected to the rear side of the slider.

[0010] As described above, the valve body is provided with a cover at the top, and the cover is fixed to the valve body by bolts. The cover covers the outside of the servo cylinder, gear, rack and linear guide.

[0011] As mentioned above, the top of the cover plate is provided with an arrow-shaped protrusion.

[0012] Compared with existing technologies, this fast-opening and closing high-pressure ball valve has the following advantages:

[0013] I. This utility model, by setting up a servo cylinder, gear, and rack, uses the servo cylinder to drive the rack to move, which in turn drives the gear to rotate, thereby causing the valve core to rotate, achieving the effect of automatic valve opening and closing, and improving the valve opening and closing efficiency.

[0014] Second, by setting up a cover, this utility model isolates components such as servo cylinders, gears, and racks from the outside world, reducing the contact between the components and moisture in the outside air, thus slowing down the corrosion rate of the components and improving the service life of the valve.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the valve body of this utility model;

[0018] Figure 3 This is a schematic diagram of the valve body and valve core structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the filter plate structure of this utility model.

[0020] In the diagram: 1. Valve body; 2. Valve core; 3. Connecting part; 4. First sealing ring; 5. Second sealing ring; 6. Valve stem; 7. Gear; 8. Servo cylinder; 9. Rack; 10. Cover; 11. Cover plate; 12. Filter plate; 13. Fixing plate; 14. Sealing gasket; 15. Linear guide rail. Detailed Implementation

[0021] 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.

[0022] like Figure 1-4 As shown, this utility model provides a technical solution: a fast-opening and closing high-pressure ball valve, including a valve body 1 and a valve core 2. The valve body 1 has a spherical cavity, and through holes communicating with the spherical cavity are opened on both the left and right sides of the valve body 1. The valve core 2 is a sphere and is located inside the spherical cavity. A through hole is opened on the valve core 2. A first sealing ring 4 that fits tightly with the valve core 2 is provided at the connection between the spherical cavity and the through hole. Connecting parts 3 are provided on both the left and right sides of the valve body 1. An opening communicating with the spherical cavity is opened on the top of the valve body 1. The inner side of the opening is close to the top. A bearing is fixedly connected to the valve core 2. A valve stem 6 is fixedly connected to the top of the valve core 2. The top of the valve stem 6 extends through the inner ring of the bearing to the outside of the valve body 1 and is fixedly connected to a gear 7. A second sealing ring 5 is sleeved on the outside of the valve stem 6. The second sealing ring 5 is located at the connection between the opening and the spherical cavity. A servo cylinder 8 is fixedly connected to the top of the valve body 1. A rack 9 is fixedly connected to the telescopic end of the servo cylinder 8 and meshes with the gear 7. A cavity is opened on the valve body 1. The cavity connects the connecting part 3 and the spherical groove. A filter plate 12 is installed in the cavity.

[0023] According to the overall structure of the device, during use, the valve body 1 is connected to the pipeline through the connecting part 3, and the servo cylinder 8 is connected to an external power source. When the valve is opened, the servo cylinder 8 is activated, and the telescopic end of the servo cylinder 8 extends, pushing the rack 9 to move. When the rack 9 moves, it drives the gear 7 to rotate, thereby driving the valve core 2 to rotate, so that the perforation on the valve core 2 is aligned with the through hole on the valve body 1. At this time, the pipelines on both sides of the valve are connected through the through hole and the perforation to transport water. When transporting water, impurities in the water can be filtered through the filter plate 12. When the valve is closed, the telescopic end of the servo cylinder 8 retracts, driving the rack 9 to reset and driving the gear 7 to rotate in the opposite direction, so that the perforation on the valve core 2 is misaligned with the through hole on the valve body 1. At this time, the valve is closed and the pipeline is disconnected.

[0024] like Figure 1 , 2As shown, the connecting part 3 is a round tube, and both the valve body 1 and the connecting part 3 are metal castings. The connecting part 3 is integrally connected to the valve body 1, and external threads are provided on the outer side wall of the connecting part 3.

[0025] The valve body 1 and the connecting part 3, which are circular tubes with external threads, can be connected to the water supply pipeline. The valve body 1 and the connecting part 3 are integrally manufactured by metal casting, which can quickly form the overall structure, reduce welding operations, improve production efficiency, and at the same time improve the overall strength and service life, making it less prone to damage.

[0026] like Figure 4 As shown, a U-shaped fixing plate 13 is fixedly connected inside the cavity. A slot is provided on the inner side of the fixing plate 13, and the filter plate 12 is inserted into the slot. The top of the cavity is open, and the top of the valve body 1 is located at the opening and is fixed with a cover plate 11 by bolts.

[0027] The cavity can be opened through the opening and cover plate 11. The filter plate 12 can be quickly inserted into or pulled out of the cavity through the U-shaped fixing plate 13 with slots, so that the filter plate 12 can be replaced or cleaned, thereby removing the impurities blocked by the filter plate 12, so as to facilitate long-term use and prevent the valve body 1 from being blocked by impurities for a long time.

[0028] like Figure 4 As shown, the filter plate 12 is covered with a sealing gasket 14 on its outer periphery, and the outer side of the sealing gasket 14 is tightly fitted with the slot and the cover plate 11. The cover plate 11 has a groove on its periphery, and a third sealing ring is fitted inside the groove. The third sealing ring is tightly fitted with the cavity sidewall.

[0029] The gap between the edge and groove of the filter plate 12 is sealed by the sealing gasket 14 to improve the filtration effect. The connection between the cover plate 11 and the cavity is sealed by the third sealing ring to prevent water from overflowing from the connection between the cover plate 11 and the cavity.

[0030] like Figure 2 As shown, a linear guide rail 15 with a slider is fixedly connected to the top of the valve body 1, a rack 9 is fixedly connected to the front side of the slider, and the telescopic end of the servo cylinder 8 is fixedly connected to the rear side of the slider.

[0031] The rack 9 is supported by the linear guide 15, allowing the rack 9 to move smoothly.

[0032] like Figure 1 , 2 As shown, the valve body 1 has a cover 10 on top, and the cover 10 is fixed to the valve body 1 by bolts. The cover 10 covers the outside of the servo cylinder 8, gear 7, rack 9 and linear guide 15. The cover 10 has an outlet for the servo cylinder 8 to connect to the external power supply cable.

[0033] The servo cylinder 8, gear 7, rack 9 and linear guide 15 are isolated from the outside world by the cover 10, which provides protection for the components, prevents the components from being damaged, avoids the components from being directly exposed to the outside world, reduces the contact between the components and external moisture, and slows down the corrosion rate of the components.

[0034] like Figure 1 As shown, the top of the cover plate 11 is provided with an arrow-shaped protrusion.

[0035] Use arrows to indicate the valve connection direction, ensuring that the connection part 3 on the side where the filter plate 12 is located is connected to the water inlet pipe.

[0036] Working principle: In use, the valve body 1 is connected to the pipeline through the connecting part 3, and the servo cylinder 8 is connected to an external power source. When the valve is opened, the servo cylinder 8 is activated, and the telescopic end of the servo cylinder 8 extends, pushing the rack 9 to move. When the rack 9 moves, it drives the gear 7 to rotate, thereby driving the valve core 2 to rotate, so that the perforation on the valve core 2 is aligned with the through hole on the valve body 1. At this time, the pipelines on both sides of the valve are connected through the through hole and the perforation to transport water. When transporting water, the impurities in the water can be filtered through the filter plate 12. When the valve is closed, the telescopic end of the servo cylinder 8 retracts, driving the rack 9 to reset and driving the gear 7 to rotate in the opposite direction, so that the perforation on the valve core 2 is misaligned with the through hole on the valve body 1. At this time, the valve is closed and the pipeline is disconnected. After a certain period of use, the bolts can be unscrewed to open the cover plate 11, and the filter plate 12 can be taken out from the cavity for replacement or cleaning. Then, the clean filter plate 12 is inserted into the slot.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure ball valve for rapid opening and closing, comprising a valve body (1) and a valve core (2), wherein the valve body (1) has a spherical cavity, and through holes communicating with the spherical cavity are provided on both the left and right sides of the valve body (1), the valve core (2) is a sphere and is located in the spherical cavity, and a through hole is provided on the valve core (2), and a first sealing ring (4) that fits tightly with the valve core (2) is provided at the connection between the spherical cavity and the through hole, and connecting parts (3) are provided on both the left and right sides of the valve body (1), characterized in that: The valve body (1) has an opening at the top that communicates with the spherical cavity. A bearing is fixedly connected to the inside of the opening near the top. A valve stem (6) is fixedly connected to the top of the valve core (2). The top of the valve stem (6) extends through the inner ring of the bearing to the outside of the valve body (1) and is fixedly connected to a gear (7). A second sealing ring (5) is fitted on the outside of the valve stem (6). The second sealing ring (5) is located at the connection between the opening and the spherical cavity. A servo cylinder (8) is fixedly connected to the top of the valve body (1). A rack (9) is fixedly connected to the telescopic end of the servo cylinder (8), and the rack (9) meshes with the gear (7). A cavity is opened on the valve body (1). The cavity communicates between the connecting part (3) and the spherical groove. A filter plate (12) is provided in the cavity.

2. The high-pressure ball valve for rapid opening and closing according to claim 1, characterized in that: The connecting part (3) is a round tube. Both the valve body (1) and the connecting part (3) are metal castings. The connecting part (3) is integrally connected to the valve body (1). The outer wall of the connecting part (3) is provided with external threads.

3. The high-pressure ball valve for rapid opening and closing according to claim 1, characterized in that: A U-shaped fixing plate (13) is fixedly connected inside the cavity. A slot is provided on the inner side of the fixing plate (13). The filter plate (12) is inserted into the slot. The top of the cavity is open, and a cover plate (11) is fixed to the top of the valve body (1) at the opening by bolts.

4. A high-pressure ball valve for rapid opening and closing according to claim 3, characterized in that: The filter plate (12) is covered with a sealing gasket (14) on its outer periphery, and the outer side of the sealing gasket (14) is tightly fitted with the slot and the cover plate (11). The cover plate (11) has a groove on its periphery, and a third sealing ring is fitted inside the groove. The third sealing ring is tightly fitted with the cavity sidewall.

5. A high-pressure ball valve for rapid opening and closing according to claim 1, characterized in that: The valve body (1) is fixedly connected to a linear guide rail (15) with a slider at the top, the rack (9) is fixedly connected to the front side of the slider, and the extension end of the servo cylinder (8) is fixedly connected to the rear side of the slider.

6. A high-pressure ball valve for rapid opening and closing according to claim 5, characterized in that: The valve body (1) is provided with a cover (10) on top, and the cover (10) is fixed to the valve body (1) by bolts. The cover (10) covers the outside of the servo cylinder (8), gear (7), rack (9) and linear guide (15).

7. A high-pressure ball valve for rapid opening and closing according to claim 3, characterized in that: The top of the cover plate (11) is provided with an arrow-shaped protrusion.

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