A dual-channel butterfly valve

Abstract

This utility model discloses a dual-channel butterfly valve, belonging to the field of butterfly valves. It includes a connecting pipe fixedly connected to one side of the outer surface of the butterfly valve body, a sealing groove on one side of the connecting pipe, and several mounting brackets fixedly connected to the outer surface of the connecting pipe. A round rod is provided inside the inner cavity of each mounting bracket, a spring is fitted around the outer ring of the round rod, and a gasket is fitted around the outer ring of the round rod. One end of the round rod passes through the outer surface of the connecting pipe and is fixedly connected to a limit ball, while the other end of the round rod passes through the inner wall of the corresponding mounting bracket and is fixedly connected to a handle. Through the coordinated use of these devices, quick connection and disassembly not only reduce maintenance difficulty and labor costs but also avoid the problem of abnormal pressure rise inside the butterfly valve caused by prolonged damage to the filter screen inside the filter tube. This improves the safety and reliability of the entire fluid control system. Operation is simple and can be completed without the use of additional tools.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, specifically a dual-channel butterfly valve. Background Technology

[0002] A butterfly valve is a commonly used type of valve, mainly used for regulating and controlling fluids in pipeline systems. It gets its name from its disc-shaped closing element, the butterfly plate, which rotates around the valve shaft to open and close. Butterfly valves are simple in structure, small in size, lightweight, and easy to operate. They can be opened and closed quickly with relatively small torque, typically requiring only a 90-degree rotation to complete one operation. They can be used to control various types of fluids, including air, water, steam, corrosive media, slurry, and oil, and have a wide range of applications in fluid control in industrial production.

[0003] An investigation revealed that a Chinese utility model patent discloses a dual-channel butterfly valve (publication number: CN220185958U), which includes a butterfly valve body. A connecting pipe is provided on one side of the butterfly valve body. Connecting parts are fixedly connected to both the butterfly valve body and the connecting pipe on one side. Multiple bolts pass through the connecting parts, and a nut is threaded to one end of each bolt. A filter screen is fixedly connected to the side of the connecting pipe near the connecting parts, and a fixed shell is fixedly connected to the side of the connecting pipe away from the filter screen. A rotating rod is rotatably connected inside the fixed shell, and blades are fixedly connected to the outer wall of the rotating rod.

[0004] Although the aforementioned patent uses a structural design to connect the connecting pipe to the butterfly valve body with bolts and nuts, and a filter screen on one side of the connecting pipe to prevent blockage and ensure proper operation, and a fixed housing on one side of the connecting pipe with a rotating rod and blades inside which the liquid rotates as it passes through the housing to reduce water pressure and thus protect the butterfly valve, the fixed location of the filter screen on one side of the connecting pipe makes it difficult to replace after prolonged use. This increases equipment maintenance costs and downtime, seriously affecting the continuous and stable operation of the butterfly valve, increasing maintenance difficulty and labor costs. Damaged filter screens can also cause abnormal pressure increases inside the butterfly valve, thereby affecting the safety and reliability of the entire fluid system.

[0005] Therefore, this utility model provides a dual-channel butterfly valve to solve the above problems. Utility Model Content

[0006] This invention provides a dual-channel butterfly valve, which aims to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a dual-channel butterfly valve, comprising a butterfly valve body, a connecting pipe fixedly connected to one side of the outer surface of the butterfly valve body, a sealing groove formed on one side of the connecting pipe, a plurality of mounting brackets fixedly connected to the outer surface of the connecting pipe, a round rod provided in the inner cavity of the mounting bracket, a spring sleeved on the outer ring of the round rod, a gasket sleeved on the outer ring of the round rod, a limiting ball fixedly connected to one end of the round rod through the outer surface of the connecting pipe, a handle fixedly connected to the other end of the round rod through the inner wall of the corresponding mounting bracket, a filter pipe provided on one side of the connecting pipe, a retaining ring fixedly connected to one side of the filter pipe, and a plurality of limiting grooves formed on the outer surface of the retaining ring.

[0008] As a preferred technical solution of this application, the outer surface of the retaining ring engages with the inner cavity of the sealing groove, and the outer surface of the limiting ball is adapted to the inner cavity of the corresponding limiting groove.

[0009] As a preferred technical solution of this application, one end of the spring is fixedly connected to the inner wall of the adjacent mounting bracket, and the other end of the spring is fixedly connected to one side of the washer.

[0010] As a preferred technical solution of this application, the inner cavity of the filter tube is provided with a support plate, the inner cavity of the filter tube is provided with a rotating rod, a waterproof box is fixedly connected to one side of the support plate, and a short rod is provided in the inner cavity of the waterproof box.

[0011] As a preferred technical solution of this application, one end of the rotating rod extends through a sealing bushing through one side of the adjacent waterproof box and is fixedly connected to a first bevel gear in the inner cavity of the waterproof box, and the other end of the rotating rod extends through a sealing bushing through the inner wall of the filter tube and is fixedly connected to a rotating handle.

[0012] As a preferred technical solution of this application, the two sides of the support plate are fixedly connected to the inner wall of the filter tube, the outer ring of the short rod is fitted with a second bevel gear, and one end of the short rod is fixedly connected to a scraper through a sealing bushing and penetrating the inner wall of the adjacent waterproof box.

[0013] As a preferred technical solution of this application, the first bevel gear and the second bevel gear are meshed by a toothed engagement, and one side of the scraper is fixedly connected to one side of the adjacent filter tube.

[0014] By incorporating connecting pipes, filter pipes, matching retaining rings, sealing grooves, limiting grooves, limiting retaining balls, springs, and round rods, the filter pipes can be easily replaced, reducing equipment downtime and improving the system's continuous operation capability. The quick connection and disassembly not only reduce maintenance difficulty and labor costs but also prevent abnormal pressure increases inside the butterfly valve caused by prolonged damage to the filter screen inside the filter pipe. This enhances the safety and reliability of the entire fluid control system. Operation is simple and can be completed without the need for additional tools.

[0015] By rotating the handle, rotating rod, first bevel gear, second bevel gear, short rod, and scraper, the continuous rotating scraping action of the scraper can effectively prevent impurities from accumulating on the filter screen surface of the filter tube for a long time, maintain the good flow capacity of the filter tube, help maintain the normal working condition of the butterfly valve, extend the service life of the equipment, and improve the stability and safety of the system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a dual-channel butterfly valve; Figure 2 This is a schematic diagram of the filter tube in a dual-channel butterfly valve. Figure 3 This is a schematic diagram of the retaining ring structure in a dual-channel butterfly valve; Figure 4 In a dual-channel butterfly valve Figure 3 Enlarged view of point A; Figure 5 This is a schematic diagram of the rotating handle in a dual-channel butterfly valve; Figure 6 This is a schematic diagram of the scraper structure in a dual-channel butterfly valve.

[0017] In the picture: 1. Butterfly valve body; 2. Connecting pipe; 3. Filter pipe; 4. Mounting bracket; 5. Sealing groove; 6. Snap ring; 7. Limiting groove; 8. Handle; 9. Round rod; 10. Spring; 11. Limiting ball; 12. Support plate; 13. Waterproof box; 14. Rotating rod; 15. Rotating handle; 16. Short rod; 17. First bevel gear; 18. Second bevel gear; 19. Scraper; 20. Gasket. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides a dual-channel butterfly valve, such as Figure 1 - Figure 6 As shown, the technical solution includes a butterfly valve body 1. A connecting pipe 2 is fixedly connected to one side of the outer surface of the butterfly valve body 1. A sealing groove 5 is opened on one side of the connecting pipe 2. Several mounting brackets 4 are fixedly connected to the outer surface of the connecting pipe 2. A round rod 9 is provided in the inner cavity of the mounting bracket 4. A spring 10 is sleeved on the outer ring of the round rod 9. A gasket 20 is sleeved on the outer ring of the round rod 9. One end of the round rod 9 passes through the outer surface of the connecting pipe 2 and is fixedly connected to a limiting ball 11. The other end of the round rod 9 passes through the inner wall of the corresponding mounting bracket 4 and is fixedly connected to a handle 8. A filter pipe 3 is provided on one side of the connecting pipe 2. A retaining ring 6 is fixedly connected to one side of the filter pipe 3. Several limiting grooves 7 are opened on the outer surface of the retaining ring 6.

[0020] The outer surface of the retaining ring 6 engages with the inner cavity of the sealing groove 5, and the outer surface of the limiting ball 11 matches the inner cavity of the corresponding limiting groove 7. When connecting the filter tube 3 and the connecting tube 2, the operator inserts the retaining ring 6 into the sealing groove 5. As the retaining ring 6 enters the sealing groove 5, the limiting ball 11 is compressed by the spring 10 and retracts outward. After the retaining ring 6 is fully embedded, the spring 10 resets and drives the limiting ball 11 to engage with the limiting groove 7, thereby achieving a quick locking connection between the filter tube 3 and the connecting tube 2, which improves the connection stability and facilitates installation and disassembly.

[0021] One end of the spring 10 is fixedly connected to the inner wall of the adjacent mounting bracket 4, and the other end of the spring 10 is fixedly connected to one side of the gasket 20. When the limiting ball 11 is pressed by the retaining ring 6, the spring 10 is compressed and deformed, so that the limiting ball 11 can smoothly avoid the retaining ring 6 and enter the position of the limiting groove 7. When the retaining ring 6 is in place, the spring 10 returns to its original shape and pushes the limiting ball 11 to reset, thereby completing the fixation and enhancing the self-adaptability of the connection structure.

[0022] The filter tube 3 has a support plate 12 inside and a rotating rod 14 inside. A waterproof box 13 is fixedly connected to one side of the support plate 12. A short rod 16 is installed inside the waterproof box 13. The support plate 12 is used to fix the installation position of the waterproof box 13 and the rotating rod 14 to ensure the structural stability of the components inside the filter tube 3.

[0023] One end of the rotating rod 14 extends through a sealing bushing through one side of the adjacent waterproof box 13 and is fixedly connected to the first bevel gear 17 in the inner cavity of the waterproof box 13. The other end of the rotating rod 14 extends through a sealing bushing through the inner wall of the filter tube 3 and is fixedly connected to a rotating handle 15. When the operator rotates the rotating handle 15, it drives the rotating rod 14 to rotate, thereby driving the first bevel gear 17 to rotate.

[0024] The two sides of the support plate 12 are fixedly connected to the inner wall of the filter tube 3 respectively. The outer ring of the short rod 16 is fitted with the second bevel gear 18. One end of the short rod 16 passes through the inner wall of the adjacent waterproof box 13 through the sealing bushing and is fixedly connected to the scraper 19. After the first bevel gear 17 and the second bevel gear 18 mesh, they can drive the short rod 16 to rotate synchronously, thereby driving the scraper 19 to rotate and clean the surface of the filter screen on the filter tube 3, reducing the risk of clogging.

[0025] The first bevel gear 17 and the second bevel gear 18 are meshed by a snap-tooth engagement. One side of the scraper 19 is fixedly connected to one side of the adjacent filter tube 3. After the first bevel gear 17 is rotated by rotating the handle 15, the rotation is transmitted to the short rod 16 through the meshing second bevel gear 18, which ultimately drives the scraper 19 to rotate along the filter screen surface on the filter tube 3.

[0026] Specifically: When connecting the connecting pipe 2 on the butterfly valve body 1 to the filter pipe 3, the operator first aligns the retaining ring 6 at one end of the filter pipe 3 with the sealing groove 5 on the connecting pipe 2 and applies a certain force to insert it. As the retaining ring 6 gradually enters the inner cavity of the sealing groove 5, the limiting retaining ball 11 is compressed by the elastic force from the spring 10. The spring 10 undergoes compression deformation, driving the round rod 9 connected to it to move backward, thereby causing the limiting retaining ball 11 to exit from its original position, providing space for the smooth insertion of the retaining ring 6. As the operator continues to apply pressure... Force is applied, and the retaining ring 6 is fully embedded inside the sealing groove 5. At this time, the spring 10 is no longer compressed by external force and returns to its initial state, thereby pushing the round rod 9 to reset and causing the limiting ball 11 to re-enter the limiting groove 7, achieving a stable connection and fixation between the filter tube 3 and the connecting tube 2. When it is necessary to disassemble, replace, or clean the filter tube 3, the operator only needs to hold the handle 8 and pull it outward, causing the spring 10 to be compressed again, driving the round rod 9 to move, thereby causing the limiting ball 11 to disengage from the limiting groove 7, releasing the locking state of the retaining ring 6. At this time, the filter tube 3 can be easily removed from the sealing groove 7. Remove the connecting pipe 2 to complete the disassembly process, facilitating the subsequent replacement of the new filter pipe 3. Over time, the filter pipe 3 is prone to blockage due to the deposition of impurities in the medium, affecting fluid flow efficiency and potentially causing adverse effects on the overall operation of the butterfly valve. When cleaning the filter pipe 3 is required, the operator first holds and rotates the rotating handle 15. The rotation of the rotating handle 15 drives the rotating rod 14, which is fixedly connected to it, to rotate synchronously. One end of the rotating rod 14 is equipped with a first bevel gear 17. During its rotation, the first bevel gear 17 rotates together with the rotating rod 14. The first bevel gear 17 meshes with the second bevel gear 18, thereby transmitting the rotational power to the second bevel gear 18. The rotation of the second bevel gear 18 drives the short rod 16 to rotate as well. The other end of the short rod 16 is fixedly connected to a scraper 19. The scraper 19 rotates and scrapes the surface of the filter screen of the filter pipe 3 as the short rod 16 rotates, removing impurities and deposits attached to the filter screen. This achieves online cleaning and maintenance of the filter screen, eliminating the need for frequent disassembly of the filter pipe 3 to complete the initial cleaning operation, thus improving the continuity and stability of equipment operation.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dual-channel butterfly valve, comprising a butterfly valve body (1), characterized in that: A connecting pipe (2) is fixedly connected to one side of the outer surface of the butterfly valve body (1). A sealing groove (5) is opened on one side of the connecting pipe (2). Several mounting brackets (4) are fixedly connected to the outer surface of the connecting pipe (2). A round rod (9) is provided in the inner cavity of the mounting bracket (4). A spring (10) is sleeved on the outer ring of the round rod (9). A gasket (20) is sleeved on the outer ring of the round rod (9). One end of the round rod (9) passes through the outer surface of the connecting pipe (2) and is fixedly connected to a limiting ball (11). The other end of the round rod (9) passes through the inner wall of the corresponding mounting bracket (4) and is fixedly connected to a handle (8). A filter pipe (3) is provided on one side of the connecting pipe (2). A retaining ring (6) is fixedly connected to one side of the filter pipe (3). Several limiting grooves (7) are opened on the outer surface of the retaining ring (6).

2. The dual-channel butterfly valve according to claim 1, characterized in that: The outer surface of the retaining ring (6) engages with the inner cavity of the sealing groove (5), and the outer surface of the limiting ball (11) is adapted to the inner cavity of the corresponding limiting groove (7).

3. A dual-channel butterfly valve according to claim 1, characterized in that: One end of the spring (10) is fixedly connected to the inner wall of the adjacent mounting bracket (4), and the other end of the spring (10) is fixedly connected to one side of the gasket (20).

4. A dual-channel butterfly valve according to claim 1, characterized in that: The filter tube (3) has a support plate (12) in its inner cavity and a rotating rod (14) in its inner cavity. A waterproof box (13) is fixedly connected to one side of the support plate (12) and a short rod (16) is provided in the inner cavity of the waterproof box (13).

5. A dual-channel butterfly valve according to claim 4, characterized in that: One end of the rotating rod (14) extends through a sealing bushing through one side of the adjacent waterproof box (13) and is fixedly connected to the inner cavity of the waterproof box (13) with a first bevel gear (17). The other end of the rotating rod (14) extends through a sealing bushing through the inner wall of the filter tube (3) and is fixedly connected to a rotating handle (15).

6. A dual-channel butterfly valve according to claim 5, characterized in that: The two sides of the support plate (12) are fixedly connected to the inner wall of the filter tube (3), the outer ring of the short rod (16) is fitted with a second bevel gear (18), and one end of the short rod (16) is fixedly connected to a scraper (19) through a sealing bushing through the inner wall of the adjacent waterproof box (13).

7. A dual-channel butterfly valve according to claim 6, characterized in that: The first bevel gear (17) and the second bevel gear (18) mesh with each other through a toothed engagement, and one side of the scraper (19) is fixedly connected to one side of the adjacent filter tube (3).

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