Universal flush valve for submersible sewage pump

Abstract

The utility model discloses a universal flush valve for a submersible sewage pump, which belongs to the technical field of flush valves and comprises an assembly flange fixedly mounted on a pump outlet flange. One end of the connecting pipe is in threaded connection with one side of the assembly flange, the other end of the connecting pipe is in threaded connection with a first rhombic seat, the valve body is fixedly connected with the first rhombic seat through a bolt, and the outer wall of the connecting pipe is in threaded connection with a locking nut corresponding to the first rhombic seat; the valve body comprises a conical shell, a sealing ball, a self-adaptive oil pressure adjusting assembly fixedly installed on the conical shell and a nozzle detachably connected to the water outlet end of the conical shell, and the spraying direction of the nozzle is adjustable. According to the universal flush valve for the submersible sewage pump, accumulation of solids and grease in rain and sewage pits can be reliably prevented through the power device of the sewage pump, shutdown cleaning or maintenance is not needed, the service life of equipment is prolonged, and meanwhile the manual operation cost is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of flushing valve technology, specifically a general-purpose flushing valve for submersible sewage pumps. Background Technology

[0002] The rainwater and sewage in the collection pits and wells are composed of sediment and scum layers, and the interior of the pits and wells as well as the integrated lifting equipment must be cleaned regularly.

[0003] The causes of these problems may include: the large capacity of the sump and well, and insufficient inflow of mixed media, resulting in a large amount of grease and solids in the wastewater. Over time, this accumulation creates an unpleasant, pungent odor and degrades the performance of the level switch or clogs the power unit (pump). This necessitates shutdown for cleaning or maintenance, extending equipment lifespan while significantly increasing labor and operating costs. Utility Model Content

[0004] This utility model provides a universal flushing valve for submersible sewage pumps, aiming to solve the problems mentioned in the background art, such as the large capacity of sump pits and wells, insufficient inflow of mixed media, resulting in a large amount of grease solids in the wastewater in the pool, which accumulate over a long period of time, forming an unpleasant and pungent odor, and causing a decrease in the operating performance of the level switch or blockage of the power unit (pump), requiring shutdown for necessary cleaning or maintenance. While improving the service life of the equipment, this also greatly increases the labor operating costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a universal flushing valve for submersible sewage pumps, comprising an assembly flange fixedly installed on the pump outlet flange, a connecting pipe fixedly connected to one side of the assembly flange, and a valve body fixedly connected to the connecting pipe via a flushing valve connector; the valve body comprises a conical shell, a sealing ball disposed inside the conical shell, an adaptive oil pressure regulating assembly fixedly installed on the conical shell, and a nozzle detachably connected to the water outlet end of the conical shell and with an adjustable spray direction; the adaptive oil pressure regulating assembly comprises a first oil storage chamber disposed at the top of the conical shell and a second oil storage chamber disposed at the bottom of the conical shell. The oil chamber includes an oil cavity, a rib fixedly connected to one side of the conical shell, an oil pressure channel disposed inside the rib and used to connect the first oil storage cavity and the second oil storage cavity, and a timing mechanism fixedly embedded in the outer wall of one side of the second support; the first oil storage cavity includes a first support integrally connected to the top of the conical shell, a first sealing gasket disposed on the top of the first support and having a centrally protruding shape, and a first protective cover fixedly installed on the top of the first support by bolts; the second oil storage cavity includes a second support integrally connected to the bottom of the conical shell, a second sealing gasket disposed on the bottom of the second support and having a centrally protruding shape, and a second protective cover fixedly installed on the bottom of the second support by bolts.

[0006] During operation, when the pump starts, a portion of the pumped fluid pressure is returned to the sump or well through the opened flushing valve, creating a jet of water for cleaning. This disperses solids in the medium near the pump inlet, causing sediment to swirl and move, making it easier for the pump to discharge. The nozzle's spray direction can be controlled directionally, effectively preventing sedimentation at the bottom of the sump or the formation of a scum layer, especially for liquids with high oil content. At the end, a pre-flushing of the pool bottom occurs, and the flushing valve automatically closes to complete the flushing process. The dispersed contaminants are discharged with the medium. During pumping, the flushing valve reopens and automatically completes the flushing process.

[0007] Preferably, the flushing valve connector includes a locking nut threaded to the outer wall of the end of the connecting pipe and a leak-proof sealing pipe with one end threaded to the locking nut and tightly abutting against the end of the connecting pipe. The end of the leak-proof sealing pipe is integrally connected to a first diamond-shaped seat, and the water inlet end of the conical shell is integrally connected to a second diamond-shaped seat. A sealing ring is provided between the second diamond-shaped seat and the first diamond-shaped seat.

[0008] Preferably, the timing mechanism includes a mounting base fixedly installed on the outer wall of the second oil storage chamber, a lever rotatably connected to the inner side of the mounting base and extending to the bottom of the inner side of the oil pressure channel, a lever fixedly connected to one end of the lever and used to adjust the flow rate of the oil pressure channel, and a U-shaped adjusting member fixedly installed on the other end of the lever.

[0009] Preferably, the bottom of the first sealing gasket is integrally formed with an annular first sealing protrusion, and the top of the first support is provided with a first sealing ring groove that matches the first sealing protrusion.

[0010] Preferably, the bottom of the second sealing gasket is integrally formed with an annular second sealing protrusion, and the top of the second support is provided with a second sealing ring groove that matches the second sealing protrusion.

[0011] Preferably, the water inlet end of the conical shell is integrally connected to a second rhomboid seat, and a sealing ring is provided between the second rhomboid seat and the first rhomboid seat.

[0012] Preferably, the surface of the first protective cover has a plurality of observation ports evenly provided along the circumference.

[0013] This submersible sewage pump's universal flushing valve has a simple and compact structure with adjustable flushing time. The entire valve is made of stainless steel. When the pump starts, a portion of the pumped fluid pressure is returned to the sump or well through the opened flushing valve, forming a jet of water for cleaning. This disperses solids in the medium near the pump inlet, causing sediment to move around and making it easier for the pump to discharge them. The working principle of the flushing valve is based on the Venturi effect and pressure difference, therefore, it does not require additional external control components or power units. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a general-purpose flushing valve for a submersible sewage pump;

[0015] Figure 2 This is a schematic diagram of the valve body in a general-purpose flushing valve for a submersible sewage pump.

[0016] Figure 3 For a general-purpose flushing valve for submersible sewage pumps Figure 2 A cross-sectional view along the aa direction;

[0017] Figure 4 For a general-purpose flushing valve for submersible sewage pumps Figure 2 A partial cross-sectional view along the bb direction;

[0018] Figure 5 For a general-purpose flushing valve for submersible sewage pumps Figure 4Enlarged structural diagram at point C;

[0019] Figure 6 For a general-purpose flushing valve for submersible sewage pumps Figure 4 A magnified structural diagram at point D in the diagram;

[0020] Figure 7 This is a partial cross-sectional view of a general-purpose flushing valve for a submersible sewage pump.

[0021] Figure 8 A general-purpose flushing valve for submersible sewage pumps Figure 7 A magnified structural diagram of point A in the middle.

[0022] In the picture:

[0023] 1. Assemble the flange;

[0024] 2. Flushing valve connector; 21. Locking nut; 22. Leak-proof sealing tube; 23. First diamond-shaped seat;

[0025] 3. Valve body;

[0026] 4. Conical shell; 41. Second rhomboid seat;

[0027] 5. Sealing ball;

[0028] 6. Adaptive hydraulic pressure regulating assembly; 61. First oil reservoir; 611. First support; 6111. First sealing ring groove; 612. First sealing gasket; 6121. First sealing convex ring; 613. First protective cover; 6131. ​​Observation port; 62. Second oil reservoir; 621. Second support; 6211. Second sealing ring groove; 622. Second sealing gasket; 6221. Second sealing convex ring; 623. Second protective cover; 63. Hydraulic pressure channel; 64. Timing mechanism; 641. Mounting base; 642. Lever; 643. Paddle; 644. U-shaped adjusting component; 65. Rib;

[0029] 7. Nozzle;

[0030] 8. Connecting pipe. Detailed Implementation

[0031] 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.

[0032] This embodiment provides a universal flushing valve for submersible sewage pumps, such as... Figures 1 to 8As shown, the general-purpose flushing valve for the submersible sewage pump includes an assembly flange 1 fixedly installed on the pump outlet flange. A connecting pipe 8 is fixedly connected to one side of the assembly flange 1, and the connecting pipe 8 is fixedly connected to a valve body 3 through a flushing valve connector 2. The valve body 3 includes a conical shell 4, a sealing ball 5 disposed inside the conical shell 4, an adaptive oil pressure regulating component 6 fixedly installed on the conical shell 4, and a nozzle 7 detachably connected to the water outlet end of the conical shell 4 and with an adjustable spray direction. The adaptive oil pressure regulating component 6 includes a first oil storage chamber 61 disposed at the top of the conical shell 4, a second oil storage chamber 62 disposed at the bottom of the conical shell 4, a rib 65 fixedly connected to one side of the conical shell 4, and a rib 65 disposed on the rib. The first oil storage chamber 65 includes an internal oil pressure channel 63 for connecting the first oil storage chamber 61 and the second oil storage chamber 62, and a timing mechanism 64 fixedly embedded in the outer wall of one side of the second support 621; the first oil storage chamber 61 includes a first support 611 integrally connected to the top of the conical shell 4, a first sealing gasket 612 disposed on the top of the first support 611 and with a centrally protruding shape, and a first protective cover 613 fixedly installed on the top of the first support 611 by bolts; the second oil storage chamber 62 includes a second support 621 integrally connected to the bottom of the conical shell 4, a second sealing gasket 622 disposed on the bottom of the second support 621 and with a centrally protruding shape, and a second protective cover 623 fixedly installed on the bottom of the second support 621 by bolts.

[0033] During operation, when the pump starts, a portion of the pumped fluid pressure is returned to the sump or well through the opened flushing valve, creating a jet of water for cleaning. This disperses solids in the medium near the pump inlet, causing sediment to move around and making it easier for the pump to discharge. The spray direction of nozzle 7 can be controlled directionally, effectively preventing sedimentation at the bottom of the sump or the formation of a scum layer, especially for liquids with high oil content. Nozzle 7 is installed at the outlet of valve body 3 via a pipe clamp for easy replacement. At the end, the bottom of the pool is pre-flushed. The sealing ball 5 is pushed by the fluid pressure and blocks the outlet of valve body 3, ensuring that the flushing valve automatically closes and completes the flushing process.

[0034] During flushing, fluid enters the conical housing 4 and pushes the first sealing gasket 612 upward, thereby squeezing out the oil in the first oil storage chamber 61. Then, under its own gravity, the oil enters the second oil storage chamber 62 through the oil pressure channel 63. The oil pressure pushes the second sealing gasket 622 upward, and the second sealing gasket 622 then pushes the sealing ball 5 upward. At this time, because the external fluid pressure provided by the pump is still there, the sealing ball 5 will not push the second sealing gasket 622 downward inside the conical housing 4. After the pump has discharged all the sewage in the pit, the sealing ball 5 falls downward under its own gravity and squeezes the second sealing gasket 622, thereby squeezing the oil inside the second oil storage chamber 62 into the first oil storage chamber 61 through the oil pressure channel 63. Oil return can be achieved without additional external control components and power units. The structure is simple and highly practical.

[0035] In one embodiment, the flushing valve connector 2 includes a locking nut 21 threaded to the outer wall of the end of the connecting pipe 8 and a leak-proof sealing pipe 22 with one end threaded to the locking nut 21 and tightly abutting against the end of the connecting pipe 8. The end of the leak-proof sealing pipe 22 is integrally connected to a first diamond-shaped seat 23, and the water inlet end of the conical shell 4 is integrally connected to a second diamond-shaped seat 41. The second diamond-shaped seat 41 and the first diamond-shaped seat 23 are provided with sealing rings.

[0036] In this embodiment, refer to Figure 1 , Figure 7 and Figure 8 By setting a leak-proof sealing pipe 22 and a sealing ring that tightly abuts against the end of the connecting pipe 8, the sealing performance of the flushing valve connector 2 is effectively enhanced, preventing leakage. Moreover, the structure is simple and easy to replace.

[0037] In one embodiment, the timing mechanism 64 includes a mounting base 641 fixedly installed on the outer wall of the second oil storage chamber 62, a lever 642 rotatably connected to the inner side of the mounting base 641 and extending to the bottom of the inner side of the oil pressure channel 63, a paddle 643 fixedly connected to one end of the lever 642 and used to adjust the flow rate of the oil pressure channel 63, and a U-shaped adjusting member 644 fixedly installed on the other end of the lever 642.

[0038] In this embodiment, refer to Figure 3 The U-shaped adjusting component 644 drives the lever 642 to rotate at a certain angle, so that the cross-sectional size between the lever 643 and the bottom oil outlet of the oil pressure channel 63 can be adjusted, thereby adjusting the oil flow speed and realizing timed flushing of the flushing pump.

[0039] In one embodiment, the bottom of the first sealing gasket 612 is integrally formed with an annular first sealing protrusion 6121, and the top of the first support 611 is provided with a first sealing ring groove 6111 that is adapted to the first sealing protrusion 6121.

[0040] In this embodiment, refer to Figure 2 By setting an integrally formed first sealing gasket 612 and a first sealing convex ring 6121, the first sealing convex ring 6121 is embedded in the first sealing ring groove 6111 during installation, which greatly enhances the sealing performance of the first oil storage chamber 61, thereby extending the service life of the flushing valve.

[0041] In one embodiment, the bottom of the second sealing gasket 622 is integrally formed with an annular second sealing protrusion 6221, and the top of the second support 621 is provided with a second sealing ring groove 6211 that is adapted to the second sealing protrusion 6221.

[0042] In this embodiment, refer to Figure 2 By setting an integrally formed second sealing gasket 622 and a second sealing convex ring 6221, the second sealing convex ring 6221 is embedded in the second sealing ring groove 6211 during installation, which greatly enhances the sealing performance of the second oil storage chamber 62, thereby extending the service life of the flushing valve.

[0043] In one embodiment, the surface of the first protective cover 613 is provided with a plurality of observation ports 6131 evenly distributed circumferentially.

[0044] In this embodiment, refer to Figure 1 By setting multiple observation ports 6131, it is convenient to observe the shape of the first oil storage chamber 61, thereby judging the internal condition of the valve body 3.

[0045] 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 universal flushing valve for submersible sewage pumps, comprising an assembly flange (1) fixedly mounted on the pump outlet flange, wherein a connecting pipe (8) is fixedly connected to one side of the assembly flange (1), and a valve body (3) is fixedly connected to the connecting pipe (8) via a flushing valve connector (2); characterized in that: The valve body (3) includes a conical housing (4), a sealing ball (5) disposed inside the conical housing (4), an adaptive oil pressure regulating assembly (6) fixedly installed on the conical housing (4), and a nozzle (7) detachably connected to the water outlet of the conical housing (4) and whose spray direction is adjustable. The adaptive oil pressure regulating component (6) includes a first oil storage chamber (61) disposed at the top of the conical housing (4), a second oil storage chamber (62) disposed at the bottom of the conical housing (4), a rib (65) fixedly connected to one side of the conical housing (4), an oil pressure channel (63) disposed inside the rib (65) and used to connect the first oil storage chamber (61) and the second oil storage chamber (62), and a timing mechanism (64) fixedly embedded in the outer wall of one side of the second oil storage chamber (62). The first oil storage chamber (61) includes a first support (611) integrally connected to the top of the conical shell (4), a first sealing gasket (612) disposed on the top of the first support (611) and raised up and down in the center, and a first protective cover (613) fixedly installed on the top of the first support (611) by bolts. The second oil storage chamber (62) includes a second support (621) integrally connected to the bottom of the conical shell (4), a second sealing gasket (622) disposed at the bottom of the second support (621) and raised vertically in the center, and a second protective cover (623) fixedly installed at the bottom of the second support (621) by bolts.

2. The universal flushing valve for submersible sewage pumps according to claim 1, characterized in that: The flushing valve connector (2) includes a locking nut (21) threaded to the outer wall of the end of the connecting pipe (8) and a leak-proof sealing pipe (22) with one end threaded to the locking nut (21) and tightly abutting the end of the connecting pipe (8). The end of the leak-proof sealing pipe (22) is integrally connected to a first diamond-shaped seat (23), and the water inlet end of the conical shell (4) is integrally connected to a second diamond-shaped seat (41). A sealing ring is provided between the second diamond-shaped seat (41) and the first diamond-shaped seat (23).

3. The universal flushing valve for submersible sewage pumps according to claim 1, characterized in that: The timing mechanism (64) includes a mounting base (641) fixedly installed on the outer wall of the second oil storage chamber (62), a lever (642) rotatably connected to the inner side of the mounting base (641) and extending to the bottom of the inner side of the oil pressure channel (63), a paddle (643) fixedly connected to one end of the lever (642) and used to adjust the flow rate of the oil pressure channel (63), and a U-shaped adjusting member (644) fixedly installed on the other end of the lever (642).

4. The universal flushing valve for submersible sewage pumps according to claim 1, characterized in that: The bottom of the first sealing gasket (612) is integrally formed with an annular first sealing protrusion (6121), and the top of the first support (611) is provided with a first sealing ring groove (6111) that is adapted to the first sealing protrusion (6121).

5. The universal flushing valve for submersible sewage pumps according to claim 1, characterized in that: The bottom of the second sealing gasket (622) is integrally formed with an annular second sealing protrusion (6221), and the top of the second support (621) is provided with a second sealing ring groove (6211) that is adapted to the second sealing protrusion (6221).

6. The universal flushing valve for submersible sewage pumps according to claim 1, characterized in that: The surface of the first protective cover (613) is uniformly provided with multiple observation ports (6131) along the circumference.

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