Lifting type bottom valve with filtering structure

Abstract

The utility model discloses a lift type bottom valve with a filtering structure, which comprises a mounting base, the top of the mounting base is fixedly connected with a mounting bin, the top of the mounting bin is fixedly connected with a flow stopping bin, the top of the flow stopping bin is fixedly connected with a filtering shell, a filtering assembly is arranged in the flow stopping bin, and a flow stopping assembly is arranged in the mounting bin. The installation base, the installation bin and the flow stopping bin are connected together in a sealing mode through welding, an installation hole is formed in the outer portion of the installation base, the flow stopping bin and the filtering shell are connected together through threads, and a sealing strip is arranged between the flow stopping bin and the filtering shell. And dirt accumulated on the filtering assembly can be automatically removed, blockage is avoided, the filtering effect is remarkably improved, the sealing plate is tightly attached to the sealing face of the flow stopping bin under the action of spring force, water flow backflow is effectively prevented, and the sealing performance and safety of the system are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of valve bodies, and particularly relates to a lifting bottom valve with a filtering structure. Background Technique

[0002] As an important fluid control device, the lifting bottom valve is widely used in multiple fields, including but not limited to purification equipment, petroleum, chemical industry, metallurgy, electric power, light textile and other production processes. In these fields, the lifting bottom valve plays a key role in controlling the one-way flow of the medium in the pipeline, effectively preventing the reverse flow of the medium, and ensuring the stability and safety of the production process. Although the lifting bottom valve has been widely used in multiple fields, there are still problems in the actual use process: since the medium may contain impurities or particulate matters, the valve flap and the valve seat of the lifting bottom valve are prone to blockage after long-term use, affecting the normal opening and closing and sealing performance of the valve. Content of the Utility Model

[0003] The purpose of the utility model is to provide a lifting bottom valve with a filtering structure to solve the problem that the medium may contain impurities or particulate matters, and the valve flap and the valve seat of the lifting bottom valve are prone to blockage after long-term use, affecting the normal opening and closing and sealing performance of the valve as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a lifting bottom valve with a filtering structure, including an installation base, the top of the installation base is fixedly connected with an installation bin, the top of the installation bin is fixedly connected with a stop flow bin, the top of the stop flow bin is fixedly connected with a filtering shell, a filtering component is arranged inside the stop flow bin, and a stop flow component is arranged inside the installation bin.

[0005] Preferably, the installation base, the installation bin and the stop flow bin are hermetically connected together by welding, installation holes are opened outside the installation base, the stop flow bin and the filtering shell are connected together by threads, and a sealing strip is arranged between the stop flow bin and the filtering shell.

[0006] Preferably, the filtering component includes a fixed block, an installation rod, a torsion spring, a stop flow plate and a filtering plate. The fixed block is fixedly connected inside the stop flow bin, both ends of the bottom of the fixed block are rotatably connected with the installation rod, the stop flow plate is rotatably connected with the installation rod, and the torsion spring is fixedly connected between the installation rod and the stop flow plate.

[0007] Preferably, the bottom of the filtering plate is fixedly connected to the top of one end of the stop flow plate close to the installation rod, and the stop flow plate and the filtering plate are arranged at a right angle.

[0008] Preferably, the flow-stopping assembly includes a limit block, a support rod, a fixing ring, a sliding rod, a limit plate, and a support spring. The limit block is fixedly connected to the inner wall of the installation bin. The bottom of the support rod is fixedly connected to the limit block, and the top of the support rod is fixedly connected to the fixing ring. The sliding rod is slidably connected inside the fixing ring. The top of the sliding rod is fixedly connected to the bottom of the limit plate. The support spring is arranged outside the sliding rod. The top of the support spring is fixedly connected to the bottom of the limit plate, and the bottom of the support spring is fixedly connected to the top of the fixing ring.

[0009] Preferably, the flow-stopping assembly further includes a sealing plate. The bottom of the sliding rod extends to the lower end of the fixing ring and is fixedly connected to the top of the sealing plate. A rubber strip is fixedly connected to the outer wall of the sealing plate, and the sealing plate is attached to the lower end inside the installation bin through the rubber strip.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. When the water pump stops generating suction, the flushing mechanism is automatically triggered by the pressure difference and the support spring force. The reverse water flow flushes the filter plate, thoroughly removing impurities and dirt, ensuring the continuous effectiveness of the filtering effect, and reducing the frequency and cost of manual cleaning.

[0012] 2. When the water pump stops working, the sealing plate closely fits the sealing surface of the flow-stopping bin under the action of the spring force, effectively preventing the backflow of water, ensuring the sealing and safety of the system. The flow-stopping plate also gradually resets during the flushing process, further enhancing the backflow prevention effect and ensuring that no water will flow back into the pipeline in the shutdown state. Description of the Drawings

[0013] Figure 1 is a view of the main body of the present utility model;

[0014] Figure 2 is a view of the internal decomposition of the present utility model;

[0015] Figure 3 is a view of the filtering assembly of the present utility model;

[0016] Figure 4 is a view of the filtering assembly of the present utility model;

[0017] Figure 5 is a view of the flow-stopping assembly of the present utility model.

[0018] In the figure: 1. Installation base; 2. Installation bin; 3. Flow-stopping bin; 4. Filter housing; 5. Fixing block; 6. Installation rod; 7. Torsion spring; 8. Flow-stopping plate; 9. Filter plate; 10. Limit block; 11. Support rod; 12. Fixing ring; 13. Sliding rod; 14. Limit plate; 15. Sealing plate; 16. Support spring. Detailed Embodiments

[0019] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described.

[0020] Please refer to Figures 1-5 , the present invention provides a lifting bottom valve with a filtering structure, including a mounting base 1. The top of the mounting base 1 is fixedly connected with a mounting bin 2. The top of the mounting bin 2 is fixedly connected with a stop flow bin 3. The top of the stop flow bin 3 is fixedly connected with a filter housing 4. A filtering component is arranged inside the stop flow bin 3, and a stop flow component is arranged inside the mounting bin 2, realizing the functions of efficiently intercepting impurities in water flow and automatic cleaning. It not only improves the safety of water quality, but also reduces the frequency and cost of manual maintenance, and is a very practical water treatment device.

[0021] Furthermore, the mounting base 1, the mounting bin 2 and the stop flow bin 3 are hermetically connected together by welding. Mounting holes are provided on the outside of the mounting base 1. The stop flow bin 3 and the filter housing 4 are connected together by threading, and a sealing strip is arranged between the stop flow bin 3 and the filter housing 4.

[0022] Furthermore, the filtering component includes a fixed block 5, a mounting rod 6, a torsion spring 7, a stop flow plate 8 and a filter plate 9. The fixed block 5 is fixedly connected inside the stop flow bin 3. The two ends of the bottom of the fixed block 5 are rotatably connected with the mounting rod 6. The stop flow plate 8 is rotatably connected with the mounting rod 6. The torsion spring 7 is fixedly connected between the mounting rod 6 and the stop flow plate 8.

[0023] Furthermore, the bottom of the filter plate 9 is fixedly connected to the top of the end of the stop flow plate 8 close to the mounting rod 6, and the stop flow plate 8 and the filter plate 9 are arranged at a right angle.

[0024] Furthermore, the stop flow component includes a limit block 10, a support rod 11, a fixed ring 12, a sliding rod 13, a limit plate 14 and a support spring 16. The limit block 10 is fixedly connected to the inner wall of the mounting bin 2. The bottom of the support rod 11 is fixedly connected with the limit block 10. The top of the support rod 11 is fixedly connected with the fixed ring 12. The sliding rod 13 is slidably connected inside the fixed ring 12. The top of the sliding rod 13 is fixedly connected with the bottom of the limit plate 14. The support spring 16 is arranged outside the sliding rod 13. The top of the support spring 16 is fixedly connected with the bottom of the limit plate 14. The bottom of the support spring 16 is fixedly connected with the top of the fixed ring 12.

[0025] Furthermore, the stop flow component further includes a sealing plate 15. The bottom of the sliding rod 13 extends to the lower end of the fixed ring 12 and is fixedly connected with the top of the sealing plate 15. Rubber strips are fixedly connected to the outer wall of the sealing plate 15, and the sealing plate 15 is attached to the lower end inside the mounting bin 2 through the rubber strips.

[0026] When the embodiment of the present application is in use: When in use, first install the device on the water pipe, and then start the water pump to generate suction. When the suction is generated, when the water flows through the bottom valve, it first enters the filter housing 4, and then the water flow pushes the stop plate 8, causing the stop plate 8 to retract. When the stop plate 8 retracts, the stop plate 8 drives the filter plate 9 to open. The filter plate 9 in the filter housing serves as the first line of defense, intercepting large particulate impurities in the water through its dense pore structure. After the filter plate 9 successfully intercepts the large particulate impurities, the water flow continues to pass through the pores of the filter plate 9 and enters the deep filtration area composed of the slide rod 13, the limit plate 14, and the fixing ring 12. At this time, the slide rod 13 and the sealing plate 15 are pushed by the water flow and slide freely within the fixing ring 12, and at the same time compress the support spring 16, causing the sealing plate 15 to disengage from the stop chamber, allowing water to pass through, ensuring the continuity and stability of the water flow. After use, turn off the water pump to stop generating suction. After the suction stops, due to the sudden stop of the water flow, an obvious pressure difference is generated between the inside and outside of the bottom valve. This pressure difference triggers the automatic flushing and stop mechanism through the interaction of the stop component and the filter component. Specifically, when the water pump stops working, the water flow no longer pushes the stop plate 8 and the filter plate 9. At this time, the support spring 16 gradually returns to its original shape, generating an inward elastic force. This elastic force first pushes the sealing plate 15 towards the inside of the stop chamber 3 until it closely fits the sealing surface of the stop chamber 3, thereby realizing the sealing function of the bottom valve and preventing the water flow from flowing back. At the same time, as the sealing plate 15 moves, the water below it is compressed and pushed upward, forming a flushing water flow. This water flow flows reversely through the pores of the filter plate 9 to flush the filter plate 9, effectively removing the impurities and dirt attached to it. Since the flushing water flow is flowing reversely, it can more thoroughly clean the pores of the filter plate 9, ensuring the continuous effectiveness of the filtering effect. During the flushing process, the stop plate 8 also gradually resets under the elastic force of the support spring 16, further preventing the water flow from flowing back. At this time, the entire bottom valve is in a closed state, which not only ensures the tightness of the system but also realizes the automatic cleaning of the filter component. When the water pump needs to be restarted again, just restart the water pump. The suction generated by the water pump will again push the stop plate 8 and the filter plate 9 to open, allowing the water flow to smoothly pass through the bottom valve and enter the downstream pipeline or equipment. At the same time, as the water flow flows, the slide rod 13 and the sealing plate 15 will also automatically adjust their positions according to the water flow intensity, maintaining the continuity and stability of the water flow, realizing the functions of efficiently intercepting impurities in the water flow and automatic cleaning. It not only improves the safety of water quality but also reduces the frequency and cost of manual maintenance.

[0027] 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lifting bottom valve with a filtering structure, comprising a mounting base (1), characterized in that: The top of the installation base (1) is fixedly connected to an installation chamber (2), the top of the installation chamber (2) is fixedly connected to a stop-flow chamber (3), the top of the stop-flow chamber (3) is fixedly connected to a filter shell (4), a filter assembly is arranged inside the stop-flow chamber (3), and a stop-flow assembly is arranged inside the installation chamber (2).

2. The lifting bottom valve with a filtering structure according to claim 1, characterized in that: The mounting base (1) is sealed and connected to the mounting chamber (2) and the stop chamber (3) by welding; a mounting hole is provided on the outside of the mounting base (1); the stop chamber (3) and the filter shell (4) are connected together by threads; and a sealing strip is provided between the stop chamber (3) and the filter shell (4).

3. The lifting bottom valve with a filtering structure according to claim 1, characterized in that: The filter assembly comprises a fixed block (5), a mounting rod (6), a torsion spring (7), a stop plate (8) and a filter plate (9); the fixed block (5) is fixedly connected inside the stop chamber (3); the two ends of the bottom of the fixed block (5) are rotatably connected to the mounting rod (6); the stop plate (8) is rotatably connected to the mounting rod (6); and the torsion spring (7) is fixedly connected between the mounting rod (6) and the stop plate (8).

4. The lifting bottom valve with a filtering structure according to claim 3, characterized in that: The bottom of the filter plate (9) is fixedly connected to the top of one end of the stop plate (8) close to the mounting rod (6), and the stop plate (8) and the filter plate (9) are arranged at a right angle.

5. The lifting bottom valve with a filtering structure according to claim 1, characterized in that: The flow-stop assembly comprises a limit block (10), a support rod (11), a fixing ring (12), a slide rod (13), a limit plate (14) and a support spring (16); the limit block (10) is fixedly connected to the inner wall of the installation bin (2); the bottom of the support rod (11) is fixedly connected to the limit block (10); the top of the support rod (11) is fixedly connected to the fixing ring (12); the slide rod (13) is slidably connected to the inside of the fixing ring (12); the top of the slide rod (13) is fixedly connected to the bottom of the limit plate (14); the support spring (16) is arranged outside the slide rod (13); the top of the support spring (16) is fixedly connected to the bottom of the limit plate (14); and the bottom of the support spring (16) is fixedly connected to the top of the fixing ring (12).

6. The lifting bottom valve with a filtering structure according to claim 5, characterized in that: The flow-stop assembly also includes a sealing plate (15); the bottom of the sliding rod (13) extends to the lower end of the fixing ring (12) and is fixedly connected to the top of the sealing plate (15); a rubber strip is fixedly connected to the outer wall of the sealing plate (15); and the sealing plate (15) is fitted to the inner lower end of the installation bin (2) via the rubber strip.

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