A ball valve that is easy to clean

Abstract

This utility model discloses a ball valve that is easy to clean, including a pipe and flanges fixedly installed at both ends of the pipe for installation. A valve body is rotatably installed inside the pipe, and a valve stem assembly is fixedly installed at the top of the valve body. An arc-shaped filter screen inside the pipe filters the water flow. When cleaning is needed, the valve body is closed. Due to the special design of the arc-shaped filter screen, when the valve body is closed, the filter screen and the ball valve body can squeeze against each other. At this time, the cleaning component is opened, and the water flow entering the pipe impacts the arc-shaped filter screen. Under the obstruction of the valve body, the water flow can wash away impurities on the arc-shaped filter screen. The washed-out impurities can flow out along the cleaning component, thereby cleaning the inside of the ball valve. Compared with traditional filter cleaning, it does not require a complex electric structure or scraper structure; it can clean the filter screen solely through the impact of the water flow and the squeezing action of the valve body.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a ball valve that is easy to clean. Background Technology

[0002] A ball valve is a fluid control device that uses a ball as its opening and closing element, rotating the ball 90° to open and close the valve. Its technological development stems from the need for efficient and reliable fluid control. With the acceleration of industrial automation and the emergence of various complex working conditions, traditional valves have gradually become insufficient in terms of sealing performance, ease of operation, and corrosion resistance. Ball valves, with their unique sealing structure between the ball and the valve seat, achieve rapid opening and closing, excellent sealing, and have a compact structure and low fluid resistance. They can adapt to various media and pressure and temperature conditions, and therefore are widely used and continuously optimized in many fields such as petroleum, chemical, power, and water treatment.

[0003] Most existing ball valves have a sealed structure, making internal cleaning difficult and potentially affecting their performance. Furthermore, most existing ball valves lack a filtration system, allowing the ball to be easily worn down by impurities in the liquid, thus shortening the valve's lifespan. To address these issues, improvements to existing equipment are necessary.

[0004] Patent document CN212616466U discloses a ball valve that is easy to clean. It includes a first main structure with an outlet at its right end and a ball inside the first main structure, the ball contacting the inner wall of the first main structure. The valve stem, at its end away from the ball, is connected to a top cover, which is located on top of the first main structure. A second main structure is located on the left side of the first main structure and connected to it. An inlet is located at the left end of the second main structure, and a limiting block is provided inside the inlet. This easy-to-clean ball valve is equipped with a filter screen to filter the liquid entering the device, preventing impurities from clogging the flow-limiting orifice and preventing wear on the ball, thus extending the valve's service life. It also includes an electrically operated telescopic rod that drives a scraper to remove impurities adhering to the filter screen, preventing clogging.

[0005] As in the prior art of the aforementioned patent, the device has a filter screen installed inside the ball valve's pipe, which can indeed filter most impurities. However, the cleaning of the filter screen relies on an electric scraper on one side of the filter screen. However, the long-term flow of water inside the ball valve pipe can cause intrusion into the electronic components inside the electric telescopic rod, resulting in a reduced service life of the electric telescopic rod. Furthermore, the space inside the pipe is generally small, making it difficult and costly to install corresponding electric telescopic rods and scrapers inside. Utility Model Content

[0006] Purpose of the utility model: The purpose of this utility model is to provide a ball valve that is easy to clean, so as to solve the above-mentioned shortcomings in the prior art.

[0007] Technical solution: A ball valve that is easy to clean includes a pipe and flanges fixedly installed at both ends of the pipe for installation. A valve body is rotatably installed inside the pipe, and a valve stem assembly is fixedly installed at the top of the valve body. A filter assembly is provided inside the pipe, and the filter assembly includes an arc-shaped filter screen. When the valve body rotates, the arc-shaped filter screen can fit tightly against the curved surface of the valve body. A cleaning assembly is provided below the pipe and is located on one side of the arc-shaped filter screen.

[0008] As a further description of the above technical solution: the filter assembly also includes a mounting ring, which is fixedly installed inside the pipe, and the arc-shaped filter screen is disposed inside the mounting ring.

[0009] As a further description of the above technical solution: the cleaning component includes a cleaning tube, a valve assembly is disposed inside the cleaning tube, and a filter cartridge is detachably disposed inside the cleaning tube, the filter cartridge being disposed below the valve assembly.

[0010] As a further description of the above technical solution: the valve assembly includes a butterfly valve and a rotary wheel.

[0011] As a further description of the above technical solution: a fixing ring is fixedly installed at the top of the filter cartridge, and a threaded part is provided on the side wall of the fixing ring. The fixing ring is connected to the internal thread of the cleaning tube through the threaded part.

[0012] As a further description of the above technical solution: a sealing ring is fixedly installed at the bottom end of the filter cartridge, and a sealing assembly is provided between the sealing ring and the cleaning tube.

[0013] As a further description of the above technical solution: the diameter of the sealing ring is larger than the outer diameter of the cleaning tube, the sealing assembly includes a sealing element fixedly installed at the top of the sealing ring, and a sealing groove is provided at the bottom of the cleaning tube, with the sealing element and the sealing groove being mutually compatible.

[0014] As a further description of the above technical solution: a rotating handle is fixedly installed at the bottom end of the sealing ring.

[0015] Beneficial effects: The arc-shaped filter screen inside the pipe can filter the water flow inside the pipe. When cleaning is needed, the valve body is closed. Due to the special design of the arc-shaped filter screen, when the valve body is closed, the filter screen and the ball valve body can squeeze each other. At this time, the cleaning component is opened, and the water flow into the pipe impacts the arc-shaped filter screen. Under the obstruction of the valve body, the water flow can wash down the impurities on the arc-shaped filter screen. The washed-out impurities can flow out along the cleaning component, thereby cleaning the inside of the ball valve. Compared with traditional filter screen cleaning, there is no need for complicated electric structure and scraper structure. The filter screen can be cleaned by only the impact of water flow and the squeezing action of the valve body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a ball valve that is easy to clean, as proposed in this utility model.

[0017] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a three-dimensional cross-sectional view of the structure of the present invention when the ball valve is closed;

[0019] Figure 4 This is a three-dimensional structural diagram of the present invention when cleaning the arc-shaped filter screen;

[0020] Figure 5 This utility model Figure 4 A magnified structural diagram at point A;

[0021] Figure 6 This is a three-dimensional structural diagram of the filter cartridge when it is disassembled according to this utility model;

[0022] Figure 7 This is a cross-sectional structural diagram of the present invention.

[0023] Legend:

[0024] 1. Pipeline; 2. Flange; 3. Valve stem assembly; 4. Cleaning pipe; 5. Valve body; 6. Mounting ring; 7. Arc-shaped filter screen; 8. Rotating wheel; 9. Butterfly valve; 10. Fixing ring; 11. Threaded part; 12. Filter cartridge; 13. Sealing ring; 14. Sealing groove; 15. Seal; 16. Rotating handle. Detailed Implementation

[0025] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Reference Figure 1-7A ball valve designed for easy cleaning includes a pipe 1 and flanges 2 fixedly installed at both ends of the pipe 1. A valve body 5 is rotatably mounted inside the pipe 1, and a valve stem assembly 3 is fixedly mounted at the top of the valve body 5. A filter assembly, including an arc-shaped filter screen 7, is installed inside the pipe 1. When the valve body 5 rotates, the arc-shaped filter screen 7 can fit tightly against the curved surface of the valve body 5. A cleaning assembly is located below the pipe 1, positioned on one side of the arc-shaped filter screen 7. The arc-shaped filter screen 7 inside the pipe 1 can filter the water flow inside the pipe 1. When cleaning is required, valve body 5 is closed. Due to the special design of the arc-shaped filter screen 7, when valve body 5 is closed, the filter screen and the ball valve body 5 can squeeze each other. At this time, the cleaning component is opened, and the water flow entering the pipe 1 impacts the arc-shaped filter screen 7. Under the obstruction of valve body 5, the water flow can wash down the impurities on the arc-shaped filter screen 7. The washed-out impurities can flow out along the cleaning component, thereby cleaning the inside of the ball valve. Compared with traditional filter screen cleaning, there is no need for a complicated electric structure and scraper structure. The filter screen can be cleaned by the impact of water flow and the squeezing action of valve body 5 alone.

[0027] As a preferred technical solution of this embodiment, the filter assembly further includes a mounting ring 6, which is fixedly installed inside the pipe 1, and the arc-shaped filter screen 7 is disposed inside the mounting ring 6; the function of the mounting ring 6 is to support and install the filter screen.

[0028] As a preferred technical solution of this embodiment, the cleaning component includes a cleaning pipe 4, a valve assembly is provided inside the cleaning pipe 4, and a filter cartridge 12 is detachably provided inside the cleaning pipe 4, with the filter cartridge 12 located below the valve assembly; by opening the valve assembly, impurities inside the pipe 1 can be cleaned, and by closing the valve assembly, water can flow normally inside the pipe 1.

[0029] As a preferred technical solution in this embodiment, the valve assembly includes a butterfly valve 9 and a rotating wheel 8; both the rotating wheel 8 and the butterfly valve 9 are existing technologies and are installed inside the cleaning pipe 4, mainly used for blocking and allowing the water flow inside the cleaning pipe 4.

[0030] As a preferred technical solution in this embodiment, a fixing ring 10 is fixedly installed at the top of the filter cartridge 12. The fixing ring 10 has a threaded portion 11 on its side wall. The fixing ring 10 is connected to the internal thread of the cleaning pipe 4 through the threaded portion 11. The filter cartridge 12 can be disassembled through the threaded connection between the fixing ring 10 and the cleaning pipe 4. When cleaning the filter screen, the fixing ring 10 is screwed outward a certain distance without having to unscrew it. The water flow impacts the arc-shaped filter screen 7 and washes away the impurities. The water flow can be filtered through the filter cartridge 12, filtering the impurities into the interior of the filter cartridge 12. Then, a recycling mechanism is set below the cleaning pipe 4 to recycle the cleaned water. After cleaning is completed, the valve assembly can be closed, and then the filter cartridge 12 can be disassembled and cleaned.

[0031] As a preferred technical solution of this embodiment, a sealing ring 13 is fixedly installed at the bottom end of the filter cartridge 12, and a sealing component is provided between the sealing ring 13 and the cleaning tube 4; the sealing ring 13 can be used to seal the cleaning tube 4.

[0032] As a preferred technical solution in this embodiment, the diameter of the sealing ring 13 is larger than the outer diameter of the cleaning tube 4, and the sealing assembly includes a sealing element 15 fixedly installed at the top of the sealing ring 13. A sealing groove 14 is provided at the bottom of the cleaning tube 4, and the sealing element 15 and the sealing groove 14 are adapted to each other. The sealing element 15 inserted into the sealing groove 14 can increase the sealing performance between the sealing ring 13 and the cleaning tube 4 and prevent water leakage when not cleaning.

[0033] As a preferred technical solution in this embodiment, a rotating handle 16 is fixedly installed at the bottom end of the sealing ring 13; the rotation of the rotating handle 16 makes it easier to disassemble the sealing ring 13, the filter cartridge 12 and the fixing ring 10.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A ball valve that is easy to clean, comprising a pipe (1) and flanges (2) fixedly mounted at both ends of the pipe (1) for installation, characterized in that, A valve body (5) is rotatably installed inside the pipe (1). A valve stem assembly (3) is fixedly installed at the top of the valve body (5). A filter assembly is provided inside the pipe (1). The filter assembly includes an arc-shaped filter screen (7). When the valve body (5) rotates, the arc-shaped filter screen (7) can fit tightly against the curved surface of the valve body (5). A cleaning assembly is provided below the pipe (1). The cleaning assembly is located on one side of the arc-shaped filter screen (7).

2. The ball valve for easy cleaning according to claim 1, characterized in that, The filter assembly also includes a mounting ring (6), which is fixedly installed inside the pipe (1), and the arc-shaped filter screen (7) is disposed inside the mounting ring (6).

3. The ball valve for easy cleaning according to claim 1, characterized in that, The cleaning assembly includes a cleaning tube (4), inside which a valve assembly is provided, and inside which a filter cartridge (12) is detachably provided, the filter cartridge (12) being located below the valve assembly.

4. The ball valve for easy cleaning according to claim 3, characterized in that, The valve assembly includes a butterfly valve (9) and a rotary wheel (8).

5. The ball valve for easy cleaning according to claim 3, characterized in that, A fixing ring (10) is fixedly installed at the top of the filter cartridge (12). The fixing ring (10) has a threaded part (11) on its side wall. The fixing ring (10) is connected to the internal thread of the cleaning tube (4) through the threaded part (11).

6. The ball valve for easy cleaning according to claim 5, characterized in that, A sealing ring (13) is fixedly installed at the bottom of the filter cartridge (12), and a sealing assembly is provided between the sealing ring (13) and the cleaning tube (4).

7. The ball valve for easy cleaning according to claim 6, characterized in that, The diameter of the sealing ring (13) is larger than the outer diameter of the cleaning tube (4). The sealing assembly includes a sealing element (15) fixedly installed on the top of the sealing ring (13). A sealing groove (14) is provided at the bottom of the cleaning tube (4). The sealing element (15) and the sealing groove (14) are adapted to each other.

8. The ball valve for easy cleaning according to claim 7, characterized in that, A rotating handle (16) is fixedly installed at the bottom end of the sealing ring (13).

Images