A circulating water pipeline self-cleaning blowdown valve

Abstract

The utility model relates to valve technical field discloses a kind of self-cleaning sewage valves of circulating water pipeline, including valve seat, the fixed pipe is fixedly connected in valve seat bottom, the connecting pipe is arranged in the fixed pipe side wall, the fixed component is arranged in the fixed pipe with the connecting pipe side wall, the filter component is arranged in the connecting pipe inside;The fixed component includes fixed block, the fixed ring one is rotatably connected in the fixed pipe with the connecting pipe side wall, the fixed ring two is rotatably connected in the fixed ring one side wall, the fixed block side wall is fixedly connected in the fixed ring one side wall.In the utility model, first, align fixed pipe and connecting pipe, set fixed ring one and fixed ring two, pull the lever to make the clamping column retract into fixed frame, after moving fixed block to position, loosen the lever, using the first spring rebound to push the clamping column to insert the sliding slot frame and fixed block to realize quick fixing, solve the problem that traditional connection structure disassembly is complex, overhaul is difficult, improve dismounting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a self-cleaning drain valve for circulating water pipelines. Background Technology

[0002] In industrial production, building water supply and drainage, and municipal pipe networks, circulating water systems play crucial roles in cooling and transportation. Because circulating water often contains impurities such as silt, suspended solids, and microorganisms, these impurities easily accumulate in the pipes, leading to blockages, increased flow resistance, and even equipment malfunctions. Therefore, it is necessary to install drain valves to filter and discharge the circulating water. Self-cleaning drain valves for circulating water pipes, as an important component of circulating water systems, can effectively intercept and promptly discharge impurities, playing a vital role in maintaining stable system operation and extending equipment lifespan.

[0003] Currently, traditional circulating water pipeline drain valves typically employ welding, flange connections, or bolt fastening methods for their connection structure. Welding connections require welding equipment to fuse the pipe and valve components together at high temperatures. Flange connections involve installing flanges at the ends of the pipe and valve, securing them together with bolts and gaskets. Bolt fastening methods directly achieve fixation by using multiple bolts passing through the connection point. The technical principle behind these connection structures is to create a stable connection channel between the drain valve and the pipeline through physical fixation, ensuring the normal transport and discharge of water.

[0004] However, once the welded connection is completed, it is difficult to disassemble. If the internal components malfunction, the welded parts need to be destroyed during maintenance, which not only makes maintenance difficult but also causes irreversible damage to the pipeline. Although flange connections and bolt fastening methods are detachable, after long-term operation, the bolts are prone to rust and the flange gaskets are prone to aging due to factors such as water pressure fluctuations and corrosion. This makes the disassembly process complicated and cumbersome, consuming a lot of manpower and time, and making it difficult to quickly inspect the internal components of the drain valve. Therefore, a self-cleaning drain valve for circulating water pipelines is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a self-cleaning drain valve for circulating water pipelines, which aims to improve the problems of complex disassembly, inconvenient maintenance, and difficulty in quickly inspecting internal components in the traditional pipeline connection structure of the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A self-cleaning drain valve for circulating water pipelines includes a valve seat, a fixed pipe fixedly connected to the bottom of the valve seat, a connecting pipe provided on the side wall of the fixed pipe, a fixing assembly provided on the side wall of the fixed pipe and the connecting pipe, and a filter assembly provided inside the connecting pipe.

[0008] The fixing assembly includes a fixing block, a fixing ring rotatably connected to the side wall of the fixing tube and the connecting tube, a fixing ring rotatably connected to one side wall of the fixing ring, a fixing block fixedly connected to one side wall of the fixing ring, a sliding frame fixedly connected to the side wall of the fixing ring rotatably, a fixing frame fixedly connected to the side wall of the sliding frame, a locking post slidably connected to the inside of the sliding frame and the fixing frame, a lever fixedly connected to the side wall of the locking post, a first spring sleeved on the side wall of the lever, one end of the first spring fixedly connected to the inside of the fixing frame, and the other end of the first spring fixedly connected to the side wall of the locking post.

[0009] As a further description of the above technical solution:

[0010] The filter assembly includes a filter plate, a filter frame is fixedly connected inside the connecting pipe, a sealing gasket is fixedly connected inside the filter frame, and the sidewall of the filter plate is slidably connected inside the filter frame and the sealing gasket.

[0011] As a further description of the above technical solution:

[0012] A fixing plate is fixedly connected to the side wall of the filter plate, a connecting frame is fixedly connected to the side wall of the filter frame, and a sleeve is fixedly connected inside the connecting frame.

[0013] As a further description of the above technical solution:

[0014] A locking block is slidably connected inside the connecting frame, and the side wall of the locking block is slidably connected inside the fixing plate. A handle is fixedly connected to the side wall of the locking block.

[0015] As a further description of the above technical solution:

[0016] The handle sidewall is slidably connected inside the connecting frame, and a connecting rod is fixedly connected to the handle sidewall. The connecting rod sidewall is slidably connected inside the sleeve.

[0017] As a further description of the above technical solution:

[0018] A second spring is sleeved on the side wall of the connecting rod. One end of the second spring is fixedly connected to the side wall of the handle, and the other end of the second spring is fixedly connected to the side wall of the sleeve.

[0019] As a further description of the above technical solution:

[0020] A third spring is fixedly connected inside the sleeve, and the side wall of the third spring is fixedly connected to the side wall of the connecting rod.

[0021] As a further description of the above technical solution:

[0022] The second fixing ring is internally slidably connected to the side wall of the fixing tube and the connecting tube, the side wall of the fixing block is slidably connected to the inside of the sliding groove frame, the side wall of the locking post is slidably connected to the inside of the fixing block, and the side wall of the lever is slidably connected to the inside of the fixing frame.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, during installation, align the fixed pipe and the connecting pipe, put on the first fixing ring and the second fixing ring, pull the lever to retract the locking post into the fixed frame, move the fixed block to the predetermined position, and then release the lever. The first spring rebounds and pushes the locking post into the sliding groove frame and the fixed block to complete the fixation. This solves the problems of complex disassembly, inconvenient maintenance, and difficulty in quickly inspecting internal components in traditional pipe connection structures. The above technical solution improves the efficiency of disassembly and assembly of the fixed pipe and the connecting pipe.

[0025] 2. In this utility model, circulating water is guided by the filter frame to the filter plate through the connecting pipe to achieve solid-liquid separation. The sealing gasket ensures the filtration effect. When cleaning or replacing the filter plate, pulling the handle will cause the locking block to compress the second and third springs, causing them to exit the fixed plate and the filter plate can be removed. This solves the problem that the filter plate of the traditional drain valve is difficult to disassemble and clean quickly, which leads to the accumulation of impurities inside the drain valve and affects the filtration effect. The above technical solution improves the efficiency of disassembling and cleaning the filter plate. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a self-cleaning drain valve for circulating water pipelines proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the fixing ring structure of a self-cleaning drain valve for circulating water pipelines proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the internal structure of the filter frame of a self-cleaning drain valve for circulating water pipelines proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the internal structure of the connection frame of a self-cleaning drain valve for circulating water pipelines proposed in this utility model.

[0031] Legend:

[0032] 1. Valve seat; 2. Fixed pipe; 3. Connecting pipe; 4. Fixed ring one; 5. Fixed ring two; 6. Fixed block; 7. Slide frame; 8. Fixed frame; 9. Locking post; 10. Lever; 11. First spring; 12. Filter frame; 13. Sealing gasket; 14. Filter plate; 15. Fixed plate; 16. Connecting frame; 17. Sleeve; 18. Locking block; 19. Handle; 20. Connecting rod; 21. Second spring; 22. Third spring. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1-3This utility model provides an embodiment of a self-cleaning drain valve for circulating water pipelines, including a valve seat 1, a fixed pipe 2 fixedly connected to the bottom of the valve seat 1, a connecting pipe 3 provided on the side wall of the fixed pipe 2, a fixing assembly provided on the side walls of the fixed pipe 2 and the connecting pipe 3, and a filter assembly provided inside the connecting pipe 3; the fixing assembly includes a fixing block 6, which cooperates with a sliding frame 7 on a second fixing ring 5, and slides along the sliding frame 7 during the fixing process, providing a structural basis for the insertion and locking of the locking post 9, and playing the role of transmitting fixing force; a first fixing ring 4 is rotatably connected to the side wall of the fixed pipe 2 and the connecting pipe 3, a second fixing ring 5 is rotatably connected to the side wall of the first fixing ring 4, the side wall of the second fixing ring 5 is fixedly connected to the side wall of the first fixing ring 4, the sliding frame 7 is fixedly connected to the side wall of the second fixing ring 5, a fixing frame 8 is fixedly connected to the side wall of the sliding frame 7, a locking post 9 is slidably connected inside the sliding frame 7 and the fixing frame 8, and a lever 10 is fixedly connected to the side wall of the locking post 9, allowing the locking post 9 to slide inside the sliding frame 7 and the fixing frame 8 and insert into the fixing block. 6. The internal mechanism locks the fixing tube 2 and the connecting tube 3. The lever 10 is fixed to the side wall of the locking post 9, allowing the operator to control the movement of the locking post 9 by moving the lever 10, thus achieving quick assembly and disassembly. The side wall of the lever 10 is fitted with a first spring 11. The locking post 9 slides in cooperation with the lever 10 and the first spring 11, achieving the effect of quickly locking and unlocking the fixing tube 2 and the connecting tube 3, simplifying the installation and disassembly process. One end of the first spring 11 is fixedly connected to the inside of the fixing frame 8, and the other end of the first spring 11 is fixedly connected to the side wall of the locking post 9. The first spring 11 provides a reset spring force for the locking post 9. When the locking post 9 is inserted into the fixing block 6, the first spring 11 remains compressed, so that the locking post 9 always maintains the locking force, preventing the fixing tube 2 and the connecting tube 3 from loosening. The fixing ring 5 is internally slidably connected to the side wall of the fixing tube 2 and the connecting tube 3. The side wall of the fixing block 6 is slidably connected to the inside of the sliding frame 7. The side wall of the locking post 9 is slidably connected to the inside of the fixing block 6. The side wall of the lever 10 is slidably connected to the inside of the fixing frame 8.

[0035] Reference Figure 1 , Figure 4 and Figure 5The filter assembly includes a filter plate 14, which is used to intercept suspended solids, silt, and other impurities in the circulating water. A filter frame 12 is fixedly connected inside the connecting pipe 3. The filter frame 12 provides an installation frame for the filter plate 14, defines the installation position of the filter plate 14, and guides the water flow evenly through the filter plate 14 to ensure the filtration effect. A sealing gasket 13 is fixedly connected inside the filter frame 12 to prevent water from leaking out from the gap between the filter plate 14 and the filter frame 12. The sidewall of the filter plate 14 is slidably connected to the filter frame 12 and the sealing gasket 13. Inside, a fixing plate 15 is fixedly connected to the side wall of the filter plate 14. The fixing plate 15 is used to cooperate with the locking block 18 to fix the filter plate 14. A connecting frame 16 is fixedly connected to the side wall of the filter frame 12. The connecting frame 16 is used to install components such as the sleeve 17 and the locking block 18. The sleeve 17 is fixedly connected inside the connecting frame 16. The locking block 18 is slidably connected inside the connecting frame 16. The side wall of the locking block 18 is slidably connected inside the fixing plate 15. A handle 19 is fixedly connected to the side wall of the locking block 18. The side wall of the handle 19 is slidably connected inside the connecting frame 16. The locking block 18 can be mounted on the connecting frame 16. The filter plate 14 is fixed by sliding inside the fixing plate 15. A handle 19 is fixed to the side wall of the locking block 18, allowing the operator to control the movement of the locking block 18 by pulling the handle 19, enabling quick assembly and disassembly of the filter plate 14 for easy cleaning and replacement. A connecting rod 20 is fixedly connected to the side wall of the handle 19, and the side wall of the connecting rod 20 is slidably connected inside the sleeve 17. A second spring 21 is sleeved on the side wall of the connecting rod 20, with one end fixedly connected to the side wall of the handle 19 and the other end fixedly connected to the side wall of the sleeve 17. A third spring 22 is fixedly connected internally. The side wall of the third spring 22 is fixedly connected to the side wall of the connecting rod 20. One end of the connecting rod 20 is connected to the handle 19, and the other end slides inside the sleeve 17, driving the locking block 18 to move. A second spring 21 is sleeved on the side wall of the connecting rod 20. One end is connected to the handle 19, and the other end is connected to the sleeve 17, providing a reset spring force for the locking block 18 and maintaining the locking force of the locking block 18 on the fixing plate 15. The third spring 22 is installed inside the sleeve 17 to assist the second spring 21, enhance the stability of the locking block 18, and prevent the filter plate 14 from loosening.

[0036] Working principle: During installation, first align the openings of the fixed pipe 2 and the connecting pipe 3, then fit the rotating connecting fixed ring 4 and fixed ring 5 onto the side walls of the two pipes. At this time, pull the lever 10 to drive the locking pin 9 to slide in the sliding frame 7, so that it is completely retracted into the fixed frame 8. During this process, the first spring 11 is compressed and stores force. After the locking pin 9 is released from the limit of the sliding frame 7, push the fixed ring 4 to make the fixed block 6 slide along the sliding frame 7 to the predetermined position. Release the lever 10, and the first spring 11 releases its elastic force to push the locking pin 9 into the mating hole of the sliding frame 7 and the fixed block 6 at the same time, so as to realize the stable connection between the fixed pipe 2 and the connecting pipe 3.

[0037] After circulating water flows into the connecting pipe 3, it is guided by the filter frame 12 to flow evenly to the filter plate 14. The filter plate 14 intercepts suspended solids, silt and other impurities in the water to achieve solid-liquid separation. The sealing gasket 13 ensures that all water flows through the filter plate 14 to ensure the filtration effect. When it is necessary to clean or replace the filter plate 14, pull the handle 19 to move the locking block 18 into the connecting frame 16, so that the connecting rod 20 squeezes the second spring 21 and the third spring 22, causing the locking block 18 to exit into the fixing plate 15, and then the filter plate 14 can be taken out for cleaning or replacement.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-cleaning drain valve for circulating water pipelines, comprising a valve seat (1), characterized in that: The valve seat (1) is fixedly connected to a fixed pipe (2) at the bottom. A connecting pipe (3) is provided on the side wall of the fixed pipe (2). A fixing assembly is provided on the side walls of the fixed pipe (2) and the connecting pipe (3). A filter assembly is provided inside the connecting pipe (3). The fixing assembly includes a fixing block (6), a fixing ring one (4) rotatably connected to the side wall of the fixing tube (2) and the connecting tube (3), a fixing ring two (5) rotatably connected to the side wall of the fixing ring one (4), a fixing block (6) fixedly connected to the side wall of the fixing ring one (4), a sliding frame (7) fixedly connected to the side wall of the fixing ring two (5), a fixing frame (8) fixedly connected to the side wall of the sliding frame (7), a locking post (9) slidably connected to the inside of the sliding frame (7) and the fixing frame (8), a lever (10) fixedly connected to the side wall of the locking post (9), a first spring (11) sleeved on the side wall of the lever (10), one end of the first spring (11) fixedly connected to the inside of the fixing frame (8), and the other end of the first spring (11) fixedly connected to the side wall of the locking post (9).

2. The self-cleaning drain valve for circulating water pipelines according to claim 1, characterized in that: The filter assembly includes a filter plate (14), a filter frame (12) is fixedly connected inside the connecting pipe (3), a sealing gasket (13) is fixedly connected inside the filter frame (12), and the side wall of the filter plate (14) is slidably connected inside the filter frame (12) and the sealing gasket (13).

3. The self-cleaning drain valve for circulating water pipelines according to claim 2, characterized in that: A fixing plate (15) is fixedly connected to the side wall of the filter plate (14), and a connecting frame (16) is fixedly connected to the side wall of the filter frame (12). A sleeve (17) is fixedly connected inside the connecting frame (16).

4. The self-cleaning drain valve for circulating water pipelines according to claim 3, characterized in that: The connecting frame (16) has a sliding block (18) inside, the side wall of the block (18) is slidably connected inside the fixing plate (15), and the side wall of the block (18) is fixedly connected to a handle (19).

5. A self-cleaning drain valve for circulating water pipelines according to claim 4, characterized in that: The handle (19) is slidably connected to the side wall of the connecting frame (16), and a connecting rod (20) is fixedly connected to the side wall of the handle (19). The side wall of the connecting rod (20) is slidably connected to the sleeve (17).

6. The self-cleaning drain valve for circulating water pipelines according to claim 5, characterized in that: The connecting rod (20) is fitted with a second spring (21) on its side wall. One end of the second spring (21) is fixedly connected to the side wall of the handle (19), and the other end of the second spring (21) is fixedly connected to the side wall of the sleeve (17).

7. A self-cleaning drain valve for circulating water pipelines according to claim 6, characterized in that: A third spring (22) is fixedly connected inside the sleeve (17), and the side wall of the third spring (22) is fixedly connected to the side wall of the connecting rod (20).

8. The self-cleaning drain valve for circulating water pipelines according to claim 1, characterized in that: The second fixing ring (5) is slidably connected to the side wall of the fixing tube (2) and the connecting tube (3), the side wall of the fixing block (6) is slidably connected to the inside of the sliding frame (7), the side wall of the locking post (9) is slidably connected to the inside of the fixing block (6), and the side wall of the lever (10) is slidably connected to the inside of the fixing frame (8).

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