Liquid level triggering type drainage pipeline automatic dredging axial flow pump system

Abstract

The invention belongs to the technical field of drainage equipment, and discloses a liquid level triggering type drainage pipeline automatic dredging axial flow pump system. The system comprises a trigger pool assembly, a desilting module and a liquid level detection module, the liquid level detection module is used for detecting the liquid height of a liquid level detection groove in the trigger pool assembly, and when the liquid level reaches and / or is larger than the preset trigger liquid level, the desilting module is controlled to discharge waste water at a high speed through the drainage pipe cavity and the pipeline. After the wastewater is completely discharged, the water outlet end of the drainage pipe cavity is automatically closed and sealed to prevent the wastewater from flowing back and peculiar smell gas from escaping. The liquid level triggering type drainage pipeline automatic dredging axial flow pump system can achieve automatic opening and closing control and active dredging of a drainage pipeline, is compact in structure, high in safety and convenient to maintain, can effectively improve the drainage efficiency and the pipeline unblocked rate, and is suitable for occasions needing automatic drainage and dredging such as kitchens, catering services, industrial processing and ships.

Description

Technical Field

[0001] This invention relates to the field of drainage equipment technology, and in particular to a level-triggered automatic sludge removal axial flow pump system for drainage pipelines. Background Technology

[0002] Currently, during daily kitchen use, wastewater contains impurities such as grease, food scraps, and detergent foam. These impurities easily accumulate in the drain pipes, and without intervention on the drainage method, natural gravity flow alone is insufficient to remove them, leading to blockages. To solve this problem, electric pumps are typically installed in the drain pipes to assist drainage and remove accumulated impurities.

[0003] However, in practical applications, current electric pump-assisted drainage control methods are simplistic. Users can only manually activate the pump to clear wastewater after it has overflowed from the pipes into the tank, resulting in low dredging efficiency and failing to meet the demands of modern residential and commercial kitchens for intelligent and efficient systems. Therefore, improving the dredging efficiency of drainage pipes has become an urgent problem to be solved. Summary of the Invention

[0004] This invention discloses a level-triggered automatic sludge removal axial flow pump system for drainage pipelines, which can detect the water level of wastewater and automatically start the sludge removal work, thereby improving the sludge removal efficiency of drainage pipelines.

[0005] To achieve the above objectives, this invention discloses a level-triggered automatic sludge removal axial flow pump system for drainage pipelines, the system comprising: A trigger pool assembly having a liquid level detection tank and a drain outlet; The dredging module has a drainage chamber pipe inside, the water inlet of the drainage chamber pipe is correspondingly set with the drain outlet, and the water outlet of the drainage chamber pipe is sealed in a preset state. A liquid level detection module is provided, with its detection end disposed on the inner wall of the liquid level detection tank. The liquid level detection module is electrically connected to the sludge removal module and is used to detect the target liquid level in the liquid level detection tank. When the target liquid level is greater than a preset sludge removal trigger position, the liquid level detection module triggers the sludge removal module to push the wastewater out of the outlet end of the drain pipe.

[0006] As an optional implementation, in an embodiment of the present invention, the dredging module includes: A rotating sludge removal unit, wherein the rotating sludge removal unit has a sludge removal chamber, the water inlet of the sludge removal chamber is correspondingly arranged with the drain outlet, and the rotating sludge removal unit is electrically connected to the liquid level detection module; A switching unit is disposed at one end of the rotating sludge removal unit away from the trigger pool assembly. The switching unit has an on / off chamber, the inlet end of which is correspondingly disposed to the outlet end of the sludge removal chamber. The on / off chamber and the sludge removal chamber are combined to form the drainage chamber. The on / off chamber is sealed in a preset state. When the target liquid level reaches and / or exceeds the sludge removal trigger position, the rotating sludge removal unit pushes the wastewater in the sludge removal chamber to the on / off chamber. The on / off chamber is opened by the thrust of the rotating sludge removal unit on the wastewater to allow the wastewater to be discharged. After the wastewater is drained, the on / off chamber is automatically sealed.

[0007] As an optional implementation, in an embodiment of the present invention, the rotating sludge removal unit includes: An electromagnetic stator assembly, which is electrically connected to the liquid level detection module; A rotor assembly is coaxially disposed within the inner cavity of the electromagnetic stator assembly. The rotor assembly has sludge-removing blades and a sludge-removing chamber tube inside, with the sludge-removing blades disposed on the inner wall of the sludge-removing chamber tube. Specifically, when the target liquid level reaches and / or exceeds the sludge removal trigger position, the liquid level detection module triggers the electromagnetic stator assembly to control the rotating component of the rotor assembly to rotate around the central axis of the sludge removal chamber via a magnetic signal, thereby driving the sludge removal blades to push the wastewater in the sludge removal chamber toward the switching unit; when the target liquid level reaches and / or falls below the preset stop discharge position, the liquid level detection module controls the electromagnetic stator assembly to stop working.

[0008] As an optional implementation, in an embodiment of the present invention, the sludge-clearing blades include a first set of blades and a second set of blades. The first set of blades is disposed on the inner wall of the sludge-clearing chamber near the trigger pool assembly, and the second set of blades is disposed on the inner wall of the sludge-clearing chamber near the switch unit. The projection of any blade in the first set of blades onto the axial direction of the sludge-clearing chamber and the projection of any blade in the second set of blades onto the axial direction of the sludge-clearing chamber do not overlap.

[0009] As an optional implementation, in an embodiment of the present invention, the rotor assembly includes: A rotor permanent magnet ring is coaxially disposed in the inner cavity of the electromagnetic stator assembly, and the inside of the rotor permanent magnet ring has a rotor placement cavity; A support sleeve is disposed in the rotor placement cavity of the rotor permanent magnet ring. The support sleeve has the sludge removal cavity tube inside. The sludge removal blades are disposed on the inner wall of the support sleeve. The rotor permanent magnet ring is used to magnetically rotate around the central axis of the sludge removal cavity tube according to the magnetic induction signal of the electromagnetic stator assembly, so as to drive the support sleeve and the sludge removal blades to rotate around the central axis of the sludge removal cavity tube.

[0010] As an optional implementation, in an embodiment of the present invention, the rotor assembly further includes: A radial limiting ring, comprising a first limiting ring and a second limiting ring, wherein the first limiting ring is disposed on the outer edge wall of the support sleeve near the trigger pool assembly, and the second limiting ring is disposed on the outer edge wall of the support sleeve near the switch unit. A thrust bearing, comprising a first bearing and a second bearing, wherein the first bearing is disposed on the side of the first limiting ring away from the support sleeve, and the second bearing is disposed on the side of the second limiting ring away from the support sleeve; An axial thrust ring, comprising a first thrust ring and a second thrust ring, wherein the first thrust ring is disposed on the side of the first bearing away from the support sleeve, and the second thrust ring is disposed on the side of the second bearing away from the support sleeve.

[0011] As an optional implementation, in an embodiment of the present invention, the rotating sludge removal unit further includes: A damping sealing ring, comprising a first sealing ring and a second sealing ring, wherein the first sealing ring is disposed on the side of the first thrust ring away from the support sleeve, and the second sealing ring is disposed on the side of the second thrust ring away from the support sleeve; A buffer sealing ring, comprising a first set of sealing rings and a second set of sealing rings, wherein the first set of sealing rings is disposed at the interval between the first bearing and the first limiting ring and the first thrust ring respectively, and the second set of sealing rings is disposed at the interval between the second bearing and the second limiting ring and the second thrust ring respectively; The bearing seal ring includes a third seal ring and a fourth seal ring. The third seal ring is embedded in the inner side of the ring of the first bearing, and the fourth seal ring is embedded in the inner side of the ring of the second bearing.

[0012] As an optional implementation, in an embodiment of the present invention, the rotating sludge removal unit further includes: A limiting washer is disposed between the second sealing ring and the switch unit. The limiting washer has a washer cavity inside, which corresponds to and is connected to the sludge removal cavity and the on / off cavity, respectively. An isolation sleeve is disposed between the electromagnetic stator assembly and the rotor permanent magnet ring, and a preset lubricating oil cavity exists between the isolation sleeve and the rotor permanent magnet ring.

[0013] As an optional implementation, in an embodiment of the present invention, the rotating sludge removal unit further includes: A stator heat sink is fitted onto the outer wall of the electromagnetic stator assembly; The pump body housing is sleeved outside the stator heat sink, and the pump body housing is spaced apart from the stator heat sink and the electromagnetic stator assembly to form a heat dissipation cavity; A stator positioning washer, comprising a first positioning washer and a second positioning washer, wherein the first positioning washer is disposed on the side of the pump body housing near the trigger pool assembly, and the second positioning washer is disposed on the side of the pump body housing near the switch unit; A stator mounting screw passes through the electromagnetic stator assembly and the pump housing. The ends of the stator mounting screw abut against the first positioning washer and the second positioning washer, respectively. The ends of the stator mounting screw are screwed onto the pump housing and the electromagnetic stator assembly by a nut.

[0014] As an optional implementation, in an embodiment of the present invention, the switching unit includes: A backflow prevention sealing permanent magnet ring is provided on the side of the rotating sludge removal unit away from the trigger pool assembly. A magnetic ring seal is disposed on the side of the anti-backflow sealing permanent magnet ring away from the rotating sludge removal unit; A support ring is provided on the side of the magnetic ring seal away from the anti-backflow sealing permanent magnet ring. The internal cavities of the anti-backflow sealing permanent magnet ring, the magnetic ring seal, and the support ring are arranged correspondingly to form the on / off cavity. The inner diameter of the support ring is larger than the inner diameters of the anti-backflow sealing permanent magnet ring and the magnetic ring seal. A magnetically coupled valve has a first valve, a second valve, and a reset element. The first valve and the second valve are connected to each other through their respective valve connecting parts, which are connected to the support ring. The reset element is disposed on the side of the first valve and the second valve near the outlet end of the on / off chamber. The first valve and the second valve have magnetism opposite to that of the anti-backflow sealing permanent magnet ring, so that the first valve and the second valve fit against the magnetic ring sealing ring in a preset state to seal the outlet end of the on / off chamber.

[0015] As an optional implementation, in an embodiment of the present invention, the switching unit further includes: A load-bearing threaded sleeve is fitted onto the water outlet end of the rotary sludge removal unit; A locking nut, wherein the first threaded cavity of the locking nut is threaded to the load-bearing threaded sleeve, and the second threaded cavity of the locking nut contains the anti-backflow sealing permanent magnet ring, the magnetic ring sealing ring, the support ring and the magnetic coupling valve; A locking ring is provided on the side of the support ring away from the magnetic ring seal, and the outer wall of the locking ring is screwed to the inner wall of the second screw cavity of the locking nut; The first anti-vibration sealing ring is disposed between the anti-backflow sealing permanent magnet ring and the inner convex ring of the locking nut.

[0016] As an optional implementation, in an embodiment of the present invention, the trigger pool component includes: A trigger pool body, the trigger pool body having the liquid level detection tank and the drain outlet; A support bracket is provided at the drain outlet, and the support bracket abuts against the water inlet of the trigger pool body and the sludge removal module respectively. The threaded connection seat of the support bracket is provided in the liquid level detection tank. A filter cartridge assembly is disposed in the liquid level detection tank and is connected to the threaded connection seat of the support bracket.

[0017] As an optional implementation, in an embodiment of the present invention, the filter cartridge assembly includes: A flange is disposed in the liquid level detection tank. The flange is connected to the threaded connection seat of the support bracket. The flange has a placement groove inside. The side of the flange near the drain outlet has a filter port. The end of the flange away from the drain outlet has a top opening. A pre-clogging anti-clogging filter cartridge is placed in the placement groove of the flange, and multiple anti-clogging filter ports are opened on the cylinder wall of the pre-clogging anti-clogging filter cartridge. A disc sealing ring is disposed on the bottom surface of the outer flange of the top opening.

[0018] As an optional implementation, in an embodiment of the present invention, the trigger pool component further includes: A trigger pool sealing ring is disposed at the opening edge of the trigger pool body; A reinforcing sleeve is fitted onto the outer wall of the trigger pool body; An overflow section is provided at the overflow port near the opening of the trigger pool body; The second anti-vibration sealing ring is disposed between the trigger pool body and the support bracket.

[0019] As an optional implementation, in an embodiment of the present invention, the inner edge of the locking ring near the water outlet is provided with a plurality of first loading and unloading grooves, and the inner ring of the locking nut is provided with a plurality of second loading and unloading grooves; both the first loading and unloading grooves and the second loading and unloading grooves are used to cooperate with the loading and unloading handle of an external loading and unloading tool for loading and unloading. The number of loading and unloading handles, the number of first loading and unloading slots, and the number of second loading and unloading slots are the same, and each loading and unloading handle corresponds to one first loading and unloading slot and one second loading and unloading slot.

[0020] As an optional implementation, in an embodiment of the present invention, the bottom of the flange is provided with an inner sliding hole in the axial direction, and the threaded connection seat of the support bracket is provided with a threaded hole in the axial direction; the loading and unloading end of the external loading and unloading tool is used to connect the inner sliding hole and the threaded hole through a lifting screw, and the threaded loading and unloading part of the external loading and unloading tool is used to screw into the threaded hole to perform loading and unloading operations on the trigger pool assembly and the dredging module.

[0021] As an optional implementation, in an embodiment of the present invention, the liquid level detection module includes: An ultrasonic liquid level sensor is disposed on the inner wall of the liquid level detection tank, and the ultrasonic liquid level sensor is used to detect the target liquid level in the liquid level detection tank. The control unit is electrically connected to the ultrasonic liquid level sensor and the sludge removal module respectively; when the target liquid level reaches and / or exceeds the sludge removal trigger position, the control unit triggers the sludge removal module to push the wastewater out of the outlet of the drainage chamber pipe.

[0022] As an optional implementation, in an embodiment of the present invention, the system further includes: The support assembly has a fixing part, an mounting part, and a grip handle. The fixing part is sleeved on the outer shell of the dredging module. The mounting part and the grip handle are respectively disposed on both sides of the fixing part. The mounting part is connected to the external wall surface to be installed.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: The liquid level-triggered automatic sludge removal axial flow pump system for drainage pipelines provided by this invention detects the target liquid level in the liquid level detection tank of the trigger pool component through a liquid level detection module. When the target liquid level is greater than the sludge removal trigger position, the liquid level detection module controls the sludge removal module to push the wastewater in the drainage chamber pipe to be discharged from the outlet end of the drainage chamber pipe. After the wastewater is drained, the outlet end of the drainage chamber pipe is automatically sealed, thereby realizing automatic on / off control of sludge removal in drainage pipelines. This avoids the problems of low efficiency caused by manual intervention and post-blockage cleaning in traditional solutions, and improves the sludge removal efficiency of drainage pipelines. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the automatic sludge removal axial flow pump system for drainage pipelines triggered by liquid level in this invention. Figure 2 This is a schematic diagram of an embodiment of the liquid level triggered automatic sludge removal axial flow pump system for drainage pipelines in this invention; Figure 3 This is a cross-sectional view of a specific embodiment of the liquid level triggered automatic sludge removal axial flow pump system for drainage pipelines in this invention; Figure 4 This is a cross-sectional view of the rotor assembly and the limiting washer in the liquid level triggered automatic sludge removal axial flow pump system for drainage pipelines of the present invention. Figure 5 This is a top view of the rotor assembly in the liquid level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to the present invention. Figure 6 This is an enlarged schematic diagram of the rotor assembly in the liquid level-triggered automatic sludge removal axial flow pump system for drainage pipelines of the present invention. Figure 7 This is an exploded view of some components of the switching unit in the liquid level-triggered automatic sludge removal axial flow pump system for drainage pipelines of the present invention. Figure 8 This is a schematic diagram of the magnetically coupled valve in the liquid level-triggered automatic sludge removal axial flow pump system for drainage pipelines of the present invention. Figure 9 This is a perspective cross-sectional view of a specific embodiment of the liquid level-triggered automatic sludge removal axial flow pump system for drainage pipelines of the present invention. Figure 10 This is a three-dimensional structural schematic diagram of a specific embodiment of the liquid level-triggered automatic sludge removal axial flow pump system for drainage pipelines of the present invention. Figure 11 This is a flowchart illustrating the operation of a level-triggered automatic sludge removal axial flow pump system for drainage pipelines in a specific embodiment of the present invention. Figure 12 This is a schematic diagram of the support assembly in the liquid level-triggered automatic sludge removal axial flow pump system for drainage pipelines of the present invention. Figure 13 This is a schematic diagram of the loading and unloading tool in this invention.

[0025] The meanings of the reference numerals in the attached figures are as follows: Trigger pool assembly 01, trigger pool body 010, support bracket 020, filter cartridge assembly 030, flange 031, pre-positioned anti-clogging filter cartridge 032, disc sealing ring 033, trigger pool sealing ring 040, reinforcing sleeve 050, overflow section 060, second anti-vibration sealing ring 070, lifting screw 080, sludge removal module 02, rotating sludge removal unit 100, electromagnetic stator assembly 110, rotor assembly 120, rotor permanent magnet ring 121, support sleeve 122. Radial limiting ring 123, first limiting ring 123-1, second limiting ring 123-2, thrust bearing 124, first bearing 124-1, second bearing 124-2, axial thrust ring 125, first thrust ring 125-1, second thrust ring 125-2, dredging blade 130, first set of blades 131, second set of blades 132, damping seal ring 101, first seal ring 101-1, second seal ring 101-2, buffer seal ring 10 2. First set of sealing rings 102-1, second set of sealing rings 102-2, bearing sealing ring 103, third sealing ring 103-1, fourth sealing ring 103-2, limit washer 140, isolation sleeve 150, stator heat sink 160, pump body shell 170, stator positioning washer 180, stator mounting screw 190, switch unit 200, anti-backflow sealing permanent magnet ring 210, magnetic ring sealing ring 220, support ring 230, magnetic coupling valve 240 241, 242, 243, 250, 260, 270, 280, 280, 03, 04, 05, 06, 07, 08, 09, 00, 00, 00, 00, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 00, 00, 00, 00, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 00, 00, 00, 00, 01, 02, 00, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 00, 00, 00, 00, 01, 02, 00, 00, 01, 02, 02, 03, 04, 05, 06, 07, 08, 09, 00, 00, 00, 00, 01, 02 ...2, 03, 04, 05, 06, 07, 08, 09, 00, 00, 00, 00, 01, 02, 02, 03, 04, 05, 06, 07, 08, 09, 00, 00, 00 Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0028] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0029] Furthermore, the terms "installation," "setting," "equipped with," "connected," "linked," and "hanging" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0030] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0031] The technical solution of the present invention will be further described below with reference to the embodiments and accompanying drawings.

[0032] Currently, during daily kitchen use, wastewater contains impurities such as grease, food scraps, and detergent foam. These impurities easily accumulate in the drain pipes, and without intervention on the drainage method, natural gravity flow alone is insufficient to remove them, leading to blockages. To solve this problem, electric pumps are typically installed in the drain pipes to assist drainage and remove accumulated impurities.

[0033] However, in practical applications, current electric pump-assisted drainage control methods are simplistic. The pump can only be manually activated for cleaning after wastewater has overflowed from the pipes into the tank, resulting in low dredging efficiency and failing to meet the demands of modern residential and commercial kitchens for intelligent and efficient systems. Therefore, improving the dredging efficiency of drainage pipes has become an urgent problem to be solved.

[0034] In response, this invention discloses a level-triggered automatic sludge removal axial flow pump system for drainage pipelines, which can detect the water level of wastewater and automatically start the sludge removal work, thereby improving the sludge removal efficiency of drainage pipelines.

[0035] like Figure 1 As shown, this invention discloses a level-triggered automatic sludge-clearing axial flow pump system for drainage pipelines. This system includes a trigger pool assembly 01, a sludge-clearing module 02, and a level detection module 03. The trigger pool assembly 01 has a level detection tank and a drain outlet. The sludge-clearing module 02 has a drain chamber pipe inside, with the inlet end of the drain chamber pipe corresponding to the drain outlet, and the outlet end of the drain chamber pipe sealed in a preset state. The detection end of the level detection module 03 is located on the inner wall of the level detection tank, and the level detection module 03 is electrically connected to the sludge-clearing module 02. The level detection module 03 is used to detect the target level of the liquid in the level detection tank. When the target level reaches and / or exceeds a preset sludge-clearing trigger level, the level detection module 03 triggers the sludge-clearing module 02 to push wastewater out from the outlet end of the drain chamber pipe.

[0036] In this embodiment, the level-triggered automatic sludge-clearing axial flow pump system for drain pipes is installed at the drain pipe interface of a sink in a daily-use environment such as a kitchen. (Refer to...) Figure 1 The trigger pool assembly 01 is installed on one side of the bottom of the external water tank, and the liquid level detection tank of the trigger pool assembly 01 is connected to the water tank. The sludge removal module 02 is vertically hung at the bottom of the trigger pool assembly 01, and the drainage chamber pipe inside the sludge removal module 02 is connected to the drain outlet at the bottom of the trigger pool assembly 01. The sludge removal module 02 has an axial flow pump structure inside to realize the sludge removal function. In the initial preset state, the water outlet at the bottom of the drainage chamber pipe is sealed.

[0037] The detection end of the liquid level detection module 03 is installed on the inner wall of the liquid level detection tank to detect the target liquid level in the tank. The liquid level detection module 03 is electrically connected to the sludge removal module 02, and can send corresponding control signals to the sludge removal module 02 based on the detected target liquid level.

[0038] When the target liquid level is detected to reach and / or exceed the preset sludge removal trigger position, it indicates that the wastewater has filled the drain chamber and is about to overflow the liquid level detection tank. At this time, the liquid level detection module 03 sends a signal to the sludge removal module 02 to control the sludge removal module 02 to start sludge removal. After sludge removal is started, the sludge removal module 02 can use its internal axial flow pump structure to push the wastewater in the drain chamber to form a high-speed water flow. Combined with the gravity of the wastewater itself, the wastewater is pushed to the bottom of the drain chamber to flush the drain pipe. The outlet end of the drain chamber is opened after being pushed by the wastewater, thereby discharging the wastewater from the outlet end of the drain chamber, thus removing the silt and debris in the drain chamber and drain pipe. After the sludge removal process is initiated, when the target liquid level is detected to drop to or below the preset discharge stop level, the liquid level detection module 03 stops sending signals to the sludge removal module 02. The sludge removal module 02 then stops sludge removal. Simultaneously, since the wastewater has been completely discharged and the sludge removal module 02 has stopped operating, the outlet end of the drain pipe is no longer able to conduct due to insufficient force from the wastewater. At this point, the outlet end of the drain pipe automatically re-seales. It is understandable that even if the target wastewater level does not reach and / or exceeds the preset sludge removal trigger level, if the wastewater's flow rate is fast enough, the outlet end of the drain pipe can still conduct, allowing the wastewater to be discharged. The sludge removal module 02's action on the wastewater primarily removes accumulated debris.

[0039] As can be seen, the liquid level-triggered automatic axial flow pump system for drainage pipelines of the present invention detects the target liquid level in the liquid level detection tank of the trigger pool component 01 through the liquid level detection module 03. By combining the target liquid level with preset sludge triggering and discharge stop positions, it can flush the pipe wall of the drainage pipeline, preventing blockages caused by debris accumulation in the wastewater. Furthermore, it can automatically control the sludge removal process, thereby improving the sludge removal efficiency of the drainage pipeline. Simultaneously, after sludge removal, the outlet end of the drainage chamber pipe can be automatically sealed to prevent the discharged wastewater from flowing back into the drainage chamber pipe and to prevent the escape of odorous gases. On the other hand, traditional electric pump sludge removal methods require additional external tap water for flushing and consume additional electrical energy for pump operation. The axial flow pump system of the present invention can utilize wastewater to form a high-speed water flow to flush and remove sludge from the drainage pipeline, achieving wastewater reuse and energy conservation, thus avoiding waste of water resources and electricity.

[0040] like Figure 2As shown, in an optional embodiment, the sludge removal module 02 includes a rotating sludge removal unit 100 and a switching unit 200. The rotating sludge removal unit 100 has a sludge removal chamber, with the inlet end of the sludge removal chamber corresponding to the outlet end. The rotating sludge removal unit 100 is electrically connected to the liquid level detection module 03. The switching unit 200 is located at the end of the rotating sludge removal unit 100 away from the trigger pool assembly 01. The switching unit 200 has an on / off chamber, with the inlet end of the on / off chamber corresponding to the outlet end of the sludge removal chamber. The on / off chamber and the sludge removal chamber are combined to form a drainage chamber. The on / off chamber is sealed in a preset state. When the target liquid level reaches and / or exceeds the preset sludge removal trigger position, the rotating sludge removal unit 100 pushes the wastewater in the sludge removal chamber to the on / off chamber. The on / off chamber is opened under the thrust of the rotating sludge removal unit 100 on the wastewater to allow the wastewater to be discharged. After the wastewater is drained, the on / off chamber automatically seals.

[0041] In this optional embodiment, the rotating sludge removal unit 100 has a vertically extending sludge removal chamber, the upper end of which is connected to the drain outlet of the trigger pool assembly 01. A switch unit 200 is provided on one side of the bottom of the rotating sludge removal unit 100. The switch unit 200 has a vertically extending on / off chamber, which is correspondingly arranged and connected to the sludge removal chamber, thus forming a drain chamber. In the initial preset state, the on / off chamber is in a sealed closed state.

[0042] The rotating sludge removal unit 100 is electrically connected to the liquid level detection module 03. When the liquid level detection module 03 detects that the target liquid level has reached and / or exceeded the preset sludge removal trigger position, the rotating sludge removal unit 100 receives the control signal sent by the liquid level detection module 03 and begins to rotate around the central axis of the sludge removal chamber. This causes the wastewater in the sludge removal chamber to generate a downward vortex axial flow thrust, which in turn causes the wastewater to flow towards the on / off chamber of the switching unit 200. The switching unit 200, pushed by the wastewater, opens the on / off chamber, thereby discharging the wastewater from the outlet end of the drain chamber. When the liquid level detection module 03 detects that the target liquid level has dropped to or below the preset discharge stop position, the liquid level detection module 03 stops sending signals to the rotating sludge removal unit 100, the rotating sludge removal unit 100 stops rotating, and the switching unit 200 automatically seals the on / off chamber due to insufficient thrust from the wastewater.

[0043] As can be seen, this optional embodiment can also generate a downward vortex axial flow thrust in the wastewater in the sludge removal chamber by rotating the sludge removal unit 100 along the axial direction of the sludge removal chamber, thereby causing the wastewater to flow to the on / off chamber of the switch unit 200, thereby further improving the sludge removal efficiency.

[0044] like Figure 3As shown, in an optional embodiment, the rotating sludge removal unit 100 includes an electromagnetic stator assembly 110 and a rotor assembly 120. The electromagnetic stator assembly 110 is electrically connected to the liquid level detection module 03; the rotor assembly 120 is coaxially disposed in the inner cavity of the electromagnetic stator assembly 110, and the rotor assembly 120 has sludge removal blades 130 and a sludge removal chamber tube inside, with the sludge removal blades 130 disposed on the inner wall of the sludge removal chamber tube; wherein, when the target liquid level reaches and / or exceeds the sludge removal trigger position, the liquid level detection module 03 triggers the electromagnetic stator assembly 110 to control the rotating component of the rotor assembly 120 to rotate around the central axis of the sludge removal chamber tube through a magnetic induction signal, driving the sludge removal blades 130 to push the wastewater in the sludge removal chamber tube toward the switch unit 200; when the target liquid level drops to or below the preset stop discharge position, the liquid level detection module 03 controls the electromagnetic stator assembly 110 to stop working.

[0045] In this optional embodiment, refer to Figure 3 The electromagnetic stator assembly 110 has a vertically longitudinal inner cavity, and the rotor assembly 120 is disposed in the inner cavity of the electromagnetic stator assembly 110, and the rotor assembly 120 and the electromagnetic stator assembly 110 are coaxially arranged. The rotor assembly 120 has a vertically longitudinal sludge-clearing chamber, and the inner wall of the sludge-clearing chamber is also provided with sludge-clearing blades 130. That is, the electromagnetic stator assembly 110 and the rotor assembly 120 in the rotating sludge-clearing unit 100 can form an axial flow pump structure.

[0046] The electromagnetic stator assembly 110 is electrically connected to the liquid level detection module 03. Upon receiving a control signal from the liquid level detection module 03, the electromagnetic stator assembly 110 generates a rotating magnetic field. This magnetic field, through magnetic induction, drives the rotor assembly 120 and its internal sludge-removing blades 130 to rotate. This causes the wastewater in the sludge-removing chamber to generate a downward vortex axial flow thrust, resulting in a high-speed water flow that flushes the drainage pipe and pumps the wastewater to the on / off chamber of the switching unit 200. When the electromagnetic stator assembly 110 stops receiving signals, it stops generating the rotating magnetic field, causing the rotor assembly 120 and its internal sludge-removing blades 130 to stop rotating. In one specific embodiment, the electromagnetic stator assembly 110 can control the rotor assembly 120 to rotate at 1500 rpm.

[0047] like Figure 3 and Figure 4As shown, in an optional embodiment, the rotor assembly 120 includes a rotor permanent magnet ring 121 and a support sleeve 122. The rotor permanent magnet ring 121 is coaxially disposed in the inner cavity of the electromagnetic stator assembly 110, and the interior of the rotor permanent magnet ring 121 has a rotor placement cavity; the support sleeve 122 is disposed in the rotor placement cavity of the rotor permanent magnet ring 121, and the interior of the support sleeve 122 has a sludge removal cavity tube. The sludge removal blade 130 is disposed on the inner wall of the support sleeve 122. The rotor permanent magnet ring 121 is used to magnetically rotate around the central axis of the sludge removal cavity tube according to the magnetic induction signal of the electromagnetic stator assembly 110, so as to drive the support sleeve 122 and the sludge removal blade 130 to rotate around the central axis of the sludge removal cavity tube.

[0048] In this optional embodiment, refer to Figure 3 and Figure 4 The rotor permanent magnet ring 121 is disposed within the inner cavity of the electromagnetic stator assembly 110. The rotor permanent magnet ring 121 has a vertically oriented rotor placement cavity, and the support sleeve 122 is disposed within this rotor placement cavity, with its outer wall abutting against the inner wall of the rotor permanent magnet ring 121. The interior of the support sleeve 122 is the sludge removal chamber. The first set of blades 131 and the second set of blades 132 are disposed on the inner wall of the support sleeve 122, and the sludge removal blades 130 are welded to the inner wall of the support sleeve 122. When the electromagnetic stator assembly 110 generates a rotating magnetic field, it causes the rotor permanent magnet ring 121 to rotate through magnetic induction, thereby driving the support sleeve 122 and the sludge removal blades 130 inside it to rotate. After the electromagnetic stator assembly 110 stops generating the magnetic field, the rotor permanent magnet ring 121, the support sleeve 122, and the sludge removal blades 130 inside them stop rotating.

[0049] As can be seen, this optional embodiment can also provide structural support for the rotor permanent magnet ring 121 through the support sleeve 122, ensuring the stability of the rotor permanent magnet ring 121 installation. At the same time, the support sleeve 122 serves as the mounting base for the dredging blade 130, and the reliable fixing and positioning of the dredging blade 130 is ensured by welding the blade root on the inner wall of the support sleeve 122.

[0050] In one specific embodiment, the rotor permanent magnet ring 121 can be selected as a radially magnetized 4-pole magnetic ring, and its material can be selected as sintered neodymium iron boron.

[0051] like Figures 3 to 5 As shown, in an optional embodiment, the sludge removal blade 130 includes a first set of blades 131 and a second set of blades 132. The first set of blades 131 is disposed on the inner wall of the sludge removal chamber tube near the trigger pool assembly 01, and the second set of blades 132 is disposed on the inner wall of the sludge removal chamber tube near the switch unit 200. The projection of any blade in the first set of blades 131 onto the axial direction of the sludge removal chamber tube does not overlap with the projection of any blade in the second set of blades 132 onto the axial direction of the sludge removal chamber tube.

[0052] In this optional embodiment, refer to Figure 3 and Figure 4 The first set of blades 131 is disposed on the inner wall of the upper section of the dredging chamber, and the second set of blades 132 is disposed on the inner wall of the lower end of the dredging chamber. The axial projection of any blade in the first set of blades 131 and the axial projection of any blade in the second set of blades 132 do not overlap. It can be understood that each set of blades contains the same number of blades, and the specific blade size and the number of blades in each set can be adjusted adaptively according to actual needs.

[0053] For example, refer to Figure 5 The first group of blades 131 and the second group of blades 132 each contain three blades. The blades in the three solid-color areas are the first group of blades 131 in the upper section of the dredging chamber, and the blades in the three shaded areas are the second group of blades 132 in the lower section of the dredging chamber. The three blades in each group are arranged at 120° intervals with the center of the dredging chamber as the center. When viewed from a top-down perspective along the axial direction, one group of blades is positioned in the interval between the other group of blades, meaning that the two groups of blades do not overlap each other in the axial direction.

[0054] In one specific embodiment, the wastewater itself has a free fall velocity of 1.98 m / s. When the rotor assembly 120 rotates, the two sets of rotating sludge-removing blades can add an additional pump push velocity of 5.91 m / s to the wastewater, making the wastewater form a higher speed water flow to flush the drainage pipe, thereby further improving the sludge removal effect.

[0055] As can be seen, this optional embodiment can also set the axial projection of any blade in the first group of blades 131 and the axial projection of any blade in the second group of blades 132 to not overlap with each other, so that when the blades rotate, the wastewater in the sludge removal chamber can generate the maximum vortex axial flow thrust, which can push the wastewater to form a higher speed water flow to flush the drainage pipe, thereby further improving the sludge removal efficiency.

[0056] like Figure 6As shown, in an optional embodiment, the rotor assembly 120 further includes: a radial limiting ring 123, a thrust bearing 124, and an axial thrust ring 125. The radial limiting ring 123 includes a first limiting ring 123-1 and a second limiting ring 123-2. The first limiting ring 123-1 is disposed on the outer edge of the support sleeve 122 near the trigger pool assembly 01, and the second limiting ring 123-2 is disposed on the outer edge of the support sleeve 122 near the switch unit 200. The thrust bearing 124 includes a first bearing 124-1 and a second bearing 124-2. The first bearing 124-1 is disposed on the outer edge of the first limiting ring 123-1. 23-1 is located on the side away from the support sleeve 122, and the second bearing 124-2 is located on the side of the second limiting ring 123-2 away from the support sleeve 122; the axial thrust ring 125 includes a first thrust ring 125-1 and a second thrust ring 125-2, the first thrust ring 125-1 is located on the side of the first bearing 124-1 away from the support sleeve 122, and the second thrust ring 125-2 is located on the side of the second bearing 124-2 away from the support sleeve 122.

[0057] In this optional embodiment, refer to Figure 6 Two radial limiting rings 123 are provided. The first limiting ring 123-1 is provided on the outer edge of the upper end of the support sleeve 122, and the second limiting ring 123-2 is provided on the outer edge of the lower end of the support sleeve 122. Both the upper and lower ends of the support sleeve 122 have portions exposed in the rotor placement cavity of the rotor permanent magnet ring 121. These exposed portions can be respectively covered by the grooves of the first limiting ring 123-1 and the second limiting ring 123-2, thereby preventing the support sleeve 122 from radially escaping during rotation.

[0058] Two thrust bearings 124 and two axial thrust rings 125 are provided. The first bearing 124-1 is located above the first limiting ring 123-1, and the second bearing 124-2 is located below the second limiting ring 123-2. The first thrust ring 125-1 is located above the first bearing 124-1, and the second thrust ring 125-2 is located below the second bearing 124-2. The thrust bearing 124 can withstand axial loads, thereby ensuring that the vertical axial thrust and part of the radial force generated by the rotor permanent magnet ring 121 and the support sleeve 122 in the rotor assembly 120 during rotation can be suppressed. The axial thrust ring 125 can provide axial limiting support for the rotor permanent magnet ring 121 and the support sleeve 122 in the rotor assembly 120 to prevent axial movement during rotation.

[0059] As can be seen, this optional embodiment can also form a mating structure between the axial thrust ring 125, the thrust bearing 124 and the radial limiting ring 123, thereby realizing the integrated function of thrust blocking and sealing of the rotating parts of the rotor assembly 120.

[0060] like Figure 3 and Figure 4 As shown, in an optional embodiment, the rotating sludge removal unit 100 further includes: a limiting washer 140 and an isolation sleeve 150. The limiting washer 140 is disposed between the second thrust ring 125-2 and the switching unit 200. The limiting washer 140 has a washer cavity inside, which corresponds to and is connected to the sludge removal cavity and the on / off cavity, respectively. The isolation sleeve 150 is disposed between the electromagnetic stator assembly 110 and the rotor permanent magnet ring 121. A preset lubricating oil cavity exists between the isolation sleeve and the rotor permanent magnet ring.

[0061] In this optional embodiment, refer to Figure 3 and Figure 4 A limiting washer 140 is also provided between the second thrust ring 125-2 and the switch unit 200. The limiting washer 140 has a vertically longitudinal washer cavity inside. The washer cavity is respectively arranged and connected to the sludge removal cavity and the on / off cavity. The limiting washer 140 can support the various components in the rotor assembly 120 to achieve axial limiting.

[0062] An isolation sleeve 150 is fitted onto the outer wall of the rotor permanent magnet ring 121. That is, an isolation sleeve 150 is also provided between the electromagnetic stator assembly 110 and the rotor permanent magnet ring 121. A limit washer 140 can also be installed inside the lower section of the isolation sleeve 150. See details... Figure 3 A certain gap exists between the isolation sleeve 150 and the rotor permanent magnet ring 121 and radial limiting ring 123 in the rotor assembly 120 to form a preset lubrication oil cavity. This lubrication oil cavity is filled with lubricating grease, thereby providing lubrication for the rotating parts of the rotor assembly 120 and preventing offset wear of the rotating parts of the rotor assembly 120 during rotation. By setting the isolation sleeve 150, a stable water and electricity isolation barrier can be formed between the electromagnetic stator assembly 110 and the rotor permanent magnet ring 121, thereby achieving effective electrical and liquid isolation, effectively preventing leakage and liquid erosion, and further improving the safety of the level-triggered automatic sludge removal axial flow pump system for drainage pipelines.

[0063] like Figure 3 and Figure 6As shown, in an optional embodiment, the rotating sludge removal unit further includes: a damping seal ring 101, a buffer seal ring 102, and a bearing seal ring 103. The damping seal ring 101 includes a first seal ring 101-1 and a second seal ring 101-2. The first seal ring 101-1 is disposed on the side of the first thrust ring 125-1 away from the support sleeve 122, and the second seal ring 101-2 is disposed on the side of the second thrust ring 125-2 away from the support sleeve 122. The buffer seal ring 102 includes a first set of seal rings 102-1 and a second set of seal rings 102-2. The first set of seal rings 102-1 is disposed on the first bearing 124-1 and respectively connected to the first limiting... At the interval between ring 123-1 and the first thrust ring 125-1, a second set of sealing rings 102-2 is disposed at the interval between the second bearing 124-2 and the second limiting ring 123-2 and the second thrust ring 125-2 respectively; the bearing sealing ring 103 includes a third sealing ring 103-1 and a fourth sealing ring 103-2, the third sealing ring 103-1 is embedded in the inner side of the ring of the first bearing 124-1, and the fourth sealing ring 103-2 is embedded in the inner side of the ring of the second bearing 124-2.

[0064] In this optional embodiment, refer to Figure 6 Two damping sealing rings 101 are provided. The first sealing ring 101-1 is located on the upper side of the first thrust ring 125-1, and the second sealing ring 101-2 is located between the second thrust ring 125-2 and the limiting washer 140. The first sealing ring 101-1 provides cushioning for the rigid contact between the support bracket 020 and the first thrust ring 125-1, and also seals the inner wall of the sludge removal chamber. The second sealing ring 101-2 provides cushioning for the rigid contact between the second thrust ring 125-2 and the limiting washer 140, and also seals the inner wall of the sludge removal chamber.

[0065] The buffer sealing rings 102 are provided in two sets, each set having two sealing rings. The two sealing rings of the first set 102-1 are respectively disposed on the upper and lower sides of the first bearing 124-1, and the two sealing rings of the second set 102-2 are respectively disposed on the upper and lower sides of the second bearing 124-2. The first set of sealing rings 102-1 provides buffering for the contact between the first bearing 124-1 and the first limiting ring 123-1 and the first thrust ring 125-1, respectively. The second set of sealing rings 102-2 provides buffering for the contact between the second bearing 124-2 and the second limiting ring 123-2 and the second thrust ring 125-2, respectively.

[0066] Two bearing seals 103 are provided. The third seal 103-1 is embedded in the inner ring of the first bearing 124-1, and the fourth seal 103-2 is embedded in the inner ring of the second bearing 124-2. The third seal 103-1 and the fourth seal 103-2 can rotate synchronously with their respective bearings during operation, effectively separating the liquid being transported in the drain pipe from the lubricating grease at the bearing. When positive / negative pressure changes occur during wastewater discharge, they can adaptively adjust the positive / negative pressure accordingly, thereby achieving a stable sealing effect that maintains dynamic balance.

[0067] Reference Figure 3 The damping seal 101, buffer seal 102, bearing seal 103, radial limiting ring 123, axial thrust ring 125, rotor permanent magnet ring 121, and isolation sleeve 150 together form a closed lubricating oil chamber, which is filled with lubricating grease. The entire rotating component of the rotor assembly 120, including the support sleeve 122, sludge removal blade 130, rotor permanent magnet ring 121, and radial limiting ring 123, is suspended in the lubricating grease. This effectively prevents the liquid transported in the drainage chamber from passing through the thrust bearing 124 and contacting its internal steel balls, cage, and rolling channels, thereby preventing lubricating oil dilution, emulsification, or short-term bearing failure, and significantly improving the system's operational stability and service life.

[0068] like Figure 3 As shown, in an optional embodiment, the rotary sludge removal unit 100 further includes: a stator heat sink 160, a pump housing 170, a stator positioning washer 180, and a stator mounting screw 190. A stator heat sink 160 is fitted onto the outer wall of the electromagnetic stator assembly 110; a pump body housing 170 is fitted onto the outside of the stator heat sink 160, and the pump body housing 170 is spaced apart from the stator heat sink 160 and the electromagnetic stator assembly 110 to form a heat dissipation cavity; a stator positioning washer 180 includes a first positioning washer and a second positioning washer, the first positioning washer is located on the side of the pump body housing 170 near the trigger pool assembly 01, and the second positioning washer is located on the side of the pump body housing 170 near the switch unit 200; a stator mounting screw 190 passes through the electromagnetic stator assembly 110 and the pump body housing 170, the ends of the stator mounting screw 190 abut against the first positioning washer and the second positioning washer respectively, and the ends of the stator mounting screw 190 are screwed onto the pump body housing 170 and the electromagnetic stator assembly 110 by a nut.

[0069] In this optional embodiment, refer to Figure 3A stator heat sink 160 is fitted onto the outer wall of the electromagnetic stator assembly 110. A pump housing 170 is fitted onto the outside of the stator heat sink 160. A certain gap is provided between the pump housing 170, the stator heat sink 160, and the electromagnetic stator assembly 110. This gap is the heat dissipation cavity, which can dissipate the heat of the electromagnetic stator assembly 110 by means of airflow. (Refer to...) Figure 3 Two stator heat sinks 160 can be provided, respectively fitted onto the upper and lower outer walls of the electromagnetic stator assembly 110. Each heat sink has multiple heat dissipation fins to cool the electromagnetic stator assembly 110 and further improve the heat dissipation effect. (Refer to...) Figure 3 The lower side of the pump housing 170 may be provided with an opening to facilitate the installation of the electromagnetic stator assembly 110 into the pump housing 170 and to provide a heat dissipation channel.

[0070] Two stator positioning washers 180 are provided. The first positioning washer is located on the upper side of the pump body housing 170, and the second positioning washer is located on the lower side of the pump body housing 170. A stator mounting screw 190 passes axially through the electromagnetic stator assembly 110 from the upper to the lower side of the pump body housing 170. The top of the stator mounting screw 190 abuts against the upper first positioning washer, and the bottom of the stator mounting screw 190 abuts against the lower second positioning washer. The upper and lower ends of the stator mounting screw 190 can be tightened with nuts to fix the pump body housing 170 and the electromagnetic stator assembly 110. It is understood that multiple stator mounting screws 190 can be provided, and the specific number can be adaptively selected according to actual needs. For example, in a specific embodiment, stator mounting screws 190 are provided at 90° intervals on the left, right, front, and rear sides of the electromagnetic stator assembly 110.

[0071] As can be seen, this optional embodiment can also position the electromagnetic stator assembly 110 axially by combining the stator positioning washer 180 with the stator mounting screw 190, so that the electromagnetic stator assembly 110 is aligned in the axial direction with the rotating components in the rotor assembly 120, such as the rotor permanent magnet ring 121 and the support sleeve 122.

[0072] like Figure 3 , Figure 7 and Figure 8As shown, in an optional embodiment, the switching unit 200 includes: an anti-backflow sealing permanent magnet ring 210, a magnetic ring sealing ring 220, a support ring 230, and a magnetically coupled valve 240. The anti-backflow sealing permanent magnet ring 210 is disposed on the side of the rotating sludge removal unit 100 away from the trigger pool assembly 01; the magnetic ring sealing ring 220 is disposed on the side of the anti-backflow sealing permanent magnet ring 210 away from the rotating sludge removal unit 100; the support ring 230 is disposed on the side of the magnetic ring sealing ring 220 away from the anti-backflow sealing permanent magnet ring 210. The internal cavities of the anti-backflow sealing permanent magnet ring 210, the magnetic ring sealing ring 220, and the support ring 230 are correspondingly arranged to form an on / off chamber. The inner diameter of the support ring 230 is larger than the inner diameters of the anti-backflow sealing permanent magnet ring 210 and the magnetic ring sealing ring 220; magnetic coupling... The valve 240 has a first valve 241, a second valve 242 and a reset member. The first valve 241 and the second valve 242 are connected to each other through their respective valve connecting parts 243. The valve connecting parts 243 are connected to the support ring 230. The reset member is disposed on the side of the first valve 241 and the second valve 242 near the water outlet end of the on / off chamber. The first valve 241 and the second valve 242 have magnetism opposite to that of the anti-backflow sealing permanent magnet ring 210, so that the first valve 241 and the second valve 242 fit the magnetic ring sealing ring 220 in a preset state to seal the water outlet end of the on / off chamber.

[0073] In this optional embodiment, refer to Figure 3 and Figure 7 The anti-backflow sealing permanent magnet ring 210, the magnetic ring sealing ring 220, and the support ring 230 are sequentially arranged below the limiting washer 140 in the rotating sludge removal unit 100. The annular cavities inside the anti-backflow sealing permanent magnet ring 210, the magnetic ring sealing ring 220, and the support ring 230 are coaxially aligned with each other, thereby forming the on / off cavity of the switching unit 200. (Refer to...) Figure 3 The inner diameters of the anti-backflow sealing permanent magnet ring 210 and the magnetic ring sealing ring 220 are the same, while the inner diameter of the support ring 230 is larger than that of the anti-backflow sealing permanent magnet ring 210 and the magnetic ring sealing ring 220, providing space for the magnetic coupling valve 240 to fit the magnetic ring sealing ring 220. This is understandable. Figure 7 The inner diameter of the middle support ring 230 is actually larger than the inner diameter of the upper anti-backflow sealing permanent magnet ring 210 and the magnetic ring sealing ring 220.

[0074] Reference Figure 8The magnetically coupled valve 240 has two valves, a first valve 241 and a second valve 242, both of which are semi-circular. Each valve has a valve connecting portion 243 on the edge of its non-circular segment, and each valve connecting portion 243 has a through hole in the radial direction of the valve. The valve connecting portions 243 of the first valve 241 and the second valve 242 are staggered to allow them to cooperate with each other. After cooperation, a connecting rod passes through the through hole in each valve connecting portion 243, and the two ends of the connecting rod are connected to the inner wall of the support ring 230. The first valve 241 and the second valve 242 have magnetisms of opposite polarity to the anti-backflow sealing permanent magnet ring 210. At the same time, the bottom of the first valve 241 and the second valve 242 is also provided with a reset component. The reset component can be a pre-tightening spring so that the first valve 241 and the second valve 242 are subjected to magnetic attraction and elastic force in the initial preset state and fit against the magnetic ring sealing ring 220, thereby sealing the water outlet end of the on / off chamber.

[0075] When subjected to the thrust of the rotor on the wastewater, the semi-circular ends of the two valves of the magnetically coupled valve 240 rotate downwards around the valve connection 243 and the connecting rod as the rotation axis. This causes the two valves to no longer adhere to the sealing magnetic ring 220, thereby opening the outlet of the on / off chamber. When the thrust of the wastewater is no longer present, under the magnetic attraction of the anti-backflow sealing permanent magnet ring 210 and the elastic force of the reset element, the two valves of the magnetically coupled valve 240 reset, causing them to adhere to the sealing magnetic ring 220 again, thereby sealing the outlet of the on / off chamber. It can be understood that even if the target liquid level of the wastewater does not reach and / or exceeds the preset sludge trigger position, if the flow speed of the wastewater itself is fast enough and its thrust exceeds the sealing capacity of the first valve 241 and the second valve 242, it can push the first valve 241 and the second valve 242 open, allowing the on / off chamber to open and thus the wastewater to be discharged from the bottom.

[0076] like Figure 3 As shown, in an optional embodiment, the switching unit 200 further includes: a load-bearing threaded sleeve 250, a locking nut 260, a locking ring 270, and a first anti-vibration sealing ring 280. The load-bearing threaded sleeve 250 is sleeved on the water outlet end of the rotating sludge removal unit 100; the first threaded cavity of the locking nut 260 is threaded to the load-bearing threaded sleeve 250, and the second threaded cavity of the locking nut 260 houses an anti-backflow sealing permanent magnet ring 210, a magnetic ring sealing ring 220, a support ring 230, and a magnetic coupling valve 240; the locking ring 270 is disposed on the side of the support ring 230 away from the magnetic ring sealing ring 220, and the outer wall of the locking ring 270 is threaded to the inner wall of the second threaded cavity of the locking nut 260; the first anti-vibration sealing ring 280 is disposed between the anti-backflow sealing permanent magnet ring 210 and the inner convex ring of the locking nut 260.

[0077] In this optional embodiment, refer to Figure 3 A load-bearing threaded sleeve 250 is fitted onto the outer wall of the lower section of the isolation sleeve 150. The outer wall of the load-bearing threaded sleeve 250 is threaded. The upper cavity of the locking nut 260 is a first threaded cavity, and the inner wall of the first threaded cavity is threaded, allowing the inner wall of the first threaded cavity to be threaded onto the outer wall of the isolation sleeve 150, thereby achieving the connection between the switching unit 200 and the rotating sludge removal unit 100. The lower cavity of the locking nut 260 is a second threaded cavity, which is connected to the first threaded cavity through an annular opening in the middle of the locking nut 260.

[0078] Reference Figure 3 and Figure 7 The first anti-vibration sealing ring 280, the anti-backflow sealing permanent magnet ring 210, the magnetic ring sealing ring 220, and the support ring 230 are arranged sequentially from top to bottom in the second threaded cavity. The outer wall of the locking ring 270 is threaded, and the inner wall of the second threaded cavity is threaded. This allows the locking ring 270 to be screwed into the second threaded cavity from the bottom opening after the anti-backflow sealing permanent magnet ring 210, the magnetic ring sealing ring 220, and the support ring 230 are installed into the second threaded cavity, so that the outer wall of the locking ring 270 is threaded with the inner wall of the second threaded cavity, thereby fixing the first anti-vibration sealing ring 280, the anti-backflow sealing permanent magnet ring 210, the magnetic ring sealing ring 220, and the support ring 230. The first anti-vibration sealing ring 280 provides a buffer for the rigid contact between the anti-backflow sealing permanent magnet ring 210 and the inner convex ring of the locking nut 260, and avoids vibration damage to the locking nut 260 and the anti-backflow sealing permanent magnet ring 210 by absorbing low-frequency vibration.

[0079] Understandable, Figure 7 The inner diameter of the middle support ring 230 is the same as the inner diameter of the locking ring 270, and the inner diameters of the support ring 230 and the locking ring 270 are actually larger than the inner diameters of the upper anti-backflow sealing permanent magnet ring 210 and the magnetic ring sealing ring 220.

[0080] Reference Figure 9 , Figure 10 The outer wall of the lower end of the locking nut 260 is provided with a pagoda head interface for connecting a flexible hose. The hose is fastened to the pagoda head by a hose clamp, and the other end is connected to the sewage pipe. This significantly improves the reliability of the drainage pipe connection and can adapt to possible positional deviations in the sewage pipe.

[0081] like Figure 3As shown, in a specific embodiment, the annular opening of the anti-backflow sealing permanent magnet ring 210, the magnetic ring sealing ring 220, the locking nut 260, the limiting washer 140, the radial limiting ring 123, the thrust bearing 124, the axial thrust ring 125, and the support sleeve 122 are set to have the same inner diameter to ensure that the drainage chamber of the whole system will not cause the accumulation of dirt in the wastewater due to the inconsistent inner diameters of the various components.

[0082] like Figure 3 and Figure 9 As shown, in an optional embodiment, the trigger pool assembly 01 includes: a trigger pool body 010, a support bracket 020, and a filter cartridge assembly 030. The trigger pool body 010 has a liquid level detection tank and a drain outlet; the support bracket 020 is disposed at the drain outlet, and the support bracket 020 abuts against the water inlet ends of the trigger pool body 010 and the sludge removal module 02, respectively, and the threaded connection seat of the support bracket 020 is disposed in the liquid level detection tank; the filter cartridge assembly 030 is disposed in the liquid level detection tank, and the filter cartridge assembly 030 is connected to the threaded connection seat of the support bracket 020.

[0083] In this optional embodiment, refer to Figure 3 and Figure 9 The trigger pool body 010 has a liquid level detection groove inside, and a drain outlet is opened at the bottom of the trigger pool body 010. The liquid level detection groove is connected to the drain chamber pipe below the system through the drain outlet. The ring base at the bottom of the support bracket 020 is set between the trigger pool body 010 and the first thrust ring 125-1. The threaded connection seat of the support bracket 020 passes through the drain outlet of the trigger pool body 010 from below. The threaded connection seat of the support bracket 020 is a cross-shaped four-legged bracket. There are gaps between each pair of the four bracket legs to allow liquid to drain from the liquid level detection groove into the drain chamber pipe below. At the same time, four grooves are correspondingly opened on the edge of the drain outlet of the trigger pool body 010. The four brackets of the support bracket 020 are fixed by one of the corresponding grooves, thereby realizing the overall fixation of the trigger pool assembly 01 and preventing rotational displacement. The filter cartridge assembly 030 is set on the upper side of the threaded connection seat of the support bracket 020. The threaded connection seat of the support bracket 020 has a threaded hole, and the bottom of the filter cartridge assembly 030 has an inner sliding hole. The bottom of the filter cartridge assembly 030 and the threaded connection seat of the support bracket 020 are connected by a lifting screw 080. The filter cartridge assembly 030 can filter out solid impurities larger than a preset size mixed in the water.

[0084] In one specific embodiment, refer to Figure 3 The trigger pool body 010 and the isolation sleeve 150 are designed as an integrated unit to ensure that the discharged wastewater is completely sealed and leak-free from the system inlet to the outlet, and to facilitate the overall loading and unloading of the system.

[0085] like Figure 3 and Figure 9 As shown, in an optional embodiment, the filter cartridge assembly 030 includes: a flange 031, a pre-mounted anti-clogging filter cartridge 032, and a disc sealing ring 033. The flange 031 is disposed within the liquid level detection tank and is connected to the threaded connection seat of the support bracket 020. The flange 031 has a placement groove inside, a disc filter port on the side of the flange 031 near the drain outlet, and a top opening at the end of the flange 031 away from the drain outlet. The pre-mounted anti-clogging filter cartridge 032 is installed in the placement groove of the flange 031, and multiple anti-clogging filter ports are provided on the cylinder wall of the pre-mounted anti-clogging filter cartridge 032. The disc sealing ring 033 is disposed on the lower side of the outer flange of the top opening of the flange 031.

[0086] In this optional embodiment, refer to Figure 3 and Figure 9 The flange 031 has an inner sliding hole at the bottom center, and the threaded connection seat of the support bracket 020 has a threaded hole in the axial direction, so that the flange 031 and the threaded connection seat of the support bracket 020 can be connected by lifting screws 080.

[0087] The pre-filter cartridge 032 is placed in the placement groove of the flange 031 by gravity. The pre-filter cartridge 032 has multiple anti-clogging ports on its side and bottom walls to filter out impurities larger than the diameter of the anti-clogging ports mixed in the water. The bottom of the flange 031 has cross-shaped support rods, with gaps between each pair of the four support rods to allow liquid to drain from the placement groove into the drain port of the trigger tank body 010 below.

[0088] The flange 031 has a convex edge at the top opening, and a flange sealing ring 033 is located on the lower side of this convex portion. Through the convex portion of the top opening of the flange 031, the flange 031 can be placed at the drain pipe interface of a sink in an external, everyday environment such as a kitchen. Wastewater can flow from the external sink into the flange 031, be filtered by the pre-filter cartridge 032, and then flow from the bottom of the flange 031 into other cavities below the system. The flange sealing ring 033 ensures a seal between the flange 031 and the external sink, preventing unfiltered wastewater from flowing into the level detection tank of the trigger pool body 010.

[0089] like Figure 3 and Figure 9 As shown, in an optional embodiment, the trigger pool assembly 01 further includes: a trigger pool sealing ring 040, a reinforcing sleeve 050, an overflow portion 060, and a second shockproof sealing ring 070. The trigger pool sealing ring 040 is disposed at the opening edge of the trigger pool body 010; the reinforcing sleeve 050 is sleeved on the outer wall of the trigger pool body 010; the trigger pool body 010 has an overflow port near the opening, the overflow portion 060 is disposed at the overflow port, and the second shockproof sealing ring 070 is disposed between the trigger pool body 010 and the support bracket 020.

[0090] In this optional embodiment, refer to Figure 9 A trigger pool sealing ring 040 is provided at the edge of the opening at the top of the trigger pool body 010. Since the top opening of the trigger pool body 010 is connected to the water tank outside the system, the trigger pool sealing ring 040 at the interface achieves a static seal between the top opening of the trigger pool body 010 and the bottom opening of the external water tank. The overflow part 060 is a screw-shaped object in the shape of a drainage tube. An overflow port is opened on the side wall at the upper end of the trigger pool body 010. The overflow part 060 is located at one end outside the overflow port. The overflow part 060 can be screwed to fix the external components used for overflow and provide a fluid conduction channel for overflow.

[0091] The outer sidewalls and bottom of the trigger pool body 010 are provided with reinforcing sleeves 050. These reinforcing sleeves 050 enhance the strength and thickness of the walls of the trigger pool body 010, strengthening the structural support and fixation performance, so as to accommodate the overflow interface and the detection end of the liquid level detection module 03. A second anti-vibration sealing ring 070 is provided between the bottom of the trigger pool body 010 and the support bracket 020. The second anti-vibration sealing ring 070 provides buffering for the rigid contact between the trigger pool body 010 and the support bracket 020, absorbing low-frequency vibrations and preventing long-term vibration transmission to the trigger pool body 010, thus preventing vibration damage.

[0092] like Figure 9 and Figure 10 As shown, in an optional embodiment, the liquid level detection module 03 includes an ultrasonic liquid level sensor 310 and a control unit. The ultrasonic liquid level sensor 310 is the detection end of the liquid level detection module 03. The ultrasonic liquid level sensor 310 is disposed on the inner wall of the liquid level detection tank and is used to detect the target liquid level in the liquid level detection tank. The control unit is electrically connected to the ultrasonic liquid level sensor 310 and the sludge removal module 02 respectively. When the target liquid level reaches and / or exceeds the sludge removal trigger position, the control unit triggers the sludge removal module 02 to push the wastewater out from the outlet of the drain pipe.

[0093] In this optional embodiment, refer to Figure 9 and Figure 10 An ultrasonic level sensor 310 is mounted on the side wall of the trigger pool body 010, with its probe extending into the level detection tank. The ultrasonic level sensor 310 is electrically connected to the control unit. The control unit is housed in an integrated electrical control box 320, which can be located on the side wall of the pump housing 170. A cable interface can be provided on one side of the integrated electrical control box 320 for the control unit to be electrically connected to an external power supply. A power indicator light can also be integrated on this cable interface.

[0094] The ultrasonic level sensor 310 emits ultrasonic waves and receives reflected echoes in the level detection tank via a probe, thereby detecting the wastewater level in the tank in real time. When the wastewater level in the level detection tank reaches and / or reaches a preset sludge removal trigger position, the normally open contact of the ultrasonic level sensor 310 closes, transmitting an electrical signal from the ultrasonic level sensor 310 to the control unit. The normally open contact of the relay in the control unit is energized and closes, energizing the enable terminal of the frequency converter circuit in the control unit and outputting an electrical signal to the electromagnetic stator assembly 110. This causes the electromagnetic stator assembly 110 to generate a rotating magnetic field to control the rotor for sludge removal. When the wastewater level in the level detection tank drops to or below a preset discharge stop position, the normally open contact of the ultrasonic level sensor 310 opens, and the normally open contact of the relay in the control unit opens, cutting off the power supply from the frequency converter circuit in the control unit to the electromagnetic stator assembly 110, causing it to decelerate and stop, thus achieving zero energy consumption in standby mode.

[0095] like Figure 11 As shown, Figure 11 The following is a flowchart of the overall system process in a specific embodiment. First, wastewater flows into the system, and the ultrasonic level sensor 310 detects whether the liquid level in the level detection tank has reached or exceeded the sludge removal trigger position.

[0096] When the liquid level does not reach the sludge removal trigger position, the axial flow pump of the system remains stationary. If the speed of the wastewater falling freely is sufficient, it can open the magnetic coupling valve 240 to discharge the wastewater by itself. If the wastewater speed is insufficient or the pipeline is blocked, the magnetic coupling valve 240 remains closed.

[0097] When the liquid level reaches or exceeds the sludge removal trigger position, the control unit triggers the electromagnetic stator assembly 110 to be energized, which drives the sludge removal blades 130 in the rotor assembly 120 to rotate. This, combined with the free fall velocity of the wastewater, increases the pump flow rate of the wastewater, so that the wastewater can flush the drainage pipe with a high-speed water flow. At this time, the magnetically coupled valve 240 opens under the push of the high-speed water flow to discharge the wastewater.

[0098] When the wastewater level drops to or below the stop discharge level, the control unit stops supplying power, the electromagnetic stator assembly 110 shuts down, and the rotor assembly 120 stops rotating. Once the wastewater flow rate decreases to a certain threshold, the magnetically coupled valve 240 automatically seals the drainage pipe.

[0099] like Figure 9 and Figure 12As shown, in an optional embodiment, the level-triggered automatic sludge removal axial flow pump system for drainage pipelines further includes a support assembly 05. The support assembly 05 has a fixing part 510, a mounting part 520, and a gripping handle 530. The fixing part 510 is sleeved on the housing of the sludge removal module 02, and the mounting part 520 and the gripping handle 530 are respectively disposed on both sides of the fixing part 510. The mounting part 520 is connected to the external wall surface to be installed.

[0100] In this optional embodiment, the fixing part 510 of the support assembly 05 is annularly designed. One side of the annular fixing part 510 has a mounting part 520, and the other side has a gripping handle 530. The fixing part 510 is sleeved outside the isolation sleeve 150 between the electromagnetic stator assembly 110 and the stator positioning washer 180. The fixing part 510 of the support assembly 05 has through holes in the axial direction, the same number as the number of stator mounting screws 190. Figure 9 The bottom end of the stator mounting screw 190 can pass through the through hole on the fixing part 510 to achieve fixation with the fixing part 510, thereby jointly supporting the overall weight of the system with the flange 031. (Refer to...) Figure 12 The fixing part 510 has four through holes, and the number of stator mounting screws 190 is also four.

[0101] Reference Figure 12 The mounting portion 520 of the support assembly 05 has through holes for mounting screws. The mounting portion 520 of the support assembly 05 is abutted against the wall surface to be installed, and mounting screws are screwed through the through holes of the mounting portion 520 to secure the entire liquid level-triggered automatic sludge removal axial flow pump system. The mounting portion 520 also has a telescopic part, which allows for flexible adjustment of the distance between the mounting portion 520 and the main axial flow pump of the system, further improving the overall support stability and usability of the system. The handle 530 is a U-shaped handle. When loading and unloading the sludge removal module 02, the operator can grip this U-shaped handle to independently support the overall weight of the system structure, facilitating loading and unloading operations.

[0102] like Figure 3 and Figure 13 As shown, in an optional embodiment, the inner edge of the locking ring 270 near the water outlet end is provided with a plurality of first loading and unloading grooves, and the inner convex ring of the locking nut 260 is provided with a plurality of second loading and unloading grooves; both the first loading and unloading grooves and the second loading and unloading grooves are used to cooperate with the loading and unloading handle 410 of the external loading and unloading tool 04 for loading and unloading; the number of the handles of the loading and unloading handle 410, the number of the first loading and unloading grooves, and the number of the second loading and unloading grooves are the same, and each handle of the loading and unloading handle 410 is respectively cooperated with one first loading and unloading groove and one second loading and unloading groove; In an optional embodiment, the bottom of the flange 031 has an inner sliding hole in the axial direction, and the threaded connection seat of the support bracket 020 has a threaded hole in the axial direction; the loading and unloading end 420 of the external loading and unloading tool 04 is used to connect the inner sliding hole and the threaded hole through the lifting screw 080, and the threaded loading and unloading part 430 of the external loading and unloading tool 04 is used to screw into the threaded hole of the threaded connection seat to perform loading and unloading operations on the support bracket 020 and the dredging module 02.

[0103] In the above optional embodiments, refer to Figure 13 The loading and unloading tool 04 is a rod-shaped object. The loading and unloading handle 410, the loading and unloading end 420, and the threaded loading and unloading part 430 can be integrated on the same loading and unloading tool 04. The loading and unloading end 420 is located at the lower end of the loading and unloading tool 04. The loading and unloading end 420 can be set as a cross-shaped protruding end, so as to cooperate with the cross-shaped screw head groove of the lifting screw 080. The lifting screw 080 is screwed from top to bottom into the inner sliding hole of the flange 031 and the threaded connection hole of the threaded connection seat through the loading and unloading end 420, so as to realize the connection between the flange 031 and the support bracket 020.

[0104] The loading / unloading tool 04 has a threaded loading / unloading part 430 on its loading / unloading end 420. This threaded loading / unloading part 430 can be screwed into the threaded hole of the threaded connection seat of the support bracket 020, thereby allowing the support bracket 020 to be installed at the drain outlet of the trigger pool body 010. (Refer to...) Figure 13 In one specific embodiment, a friction damping part 440 may be provided above the threaded loading and unloading part 430 of the loading and unloading tool 04. The friction damping part 440 can facilitate the hand gripping of the loading and unloading tool 04 to perform loading and unloading actions such as rotation and pushing.

[0105] The upper end of the loading / unloading tool 04 has a loading / unloading handle 410, on which multiple rods perpendicular to the main body of the loading / unloading tool 04 may be provided. (Refer to...) Figure 3 and Figure 9The lower inner ring edge of the locking ring 270 has multiple first loading and unloading grooves, and the inner wall of the inner convex ring inside the locking nut 260 has multiple axially connected second loading and unloading grooves. The number of first loading and unloading grooves, second loading and unloading grooves, and loading and unloading handle 410 rods are all the same, and each rod of the loading and unloading handle 410 can be aligned and placed into a corresponding first loading and unloading groove and a corresponding second loading and unloading groove. For example, the number of first loading and unloading grooves, second loading and unloading grooves, and loading and unloading handle 410 rods are all 4, and each rod of the loading and unloading handle 410 is perpendicular to the main body of the loading and unloading tool 04 at a 90° angle, and each first loading and unloading groove and each second loading and unloading groove is also correspondingly set at the same angle. The radii of each rod, the radii of each first loading and unloading groove (i.e., the radius of the inner wall of the locking ring 270 + the depth of the first loading and unloading groove), and the radii of each second loading and unloading groove (i.e., the radius of the inner wall of the inner convex ring of the locking nut 260 + the depth of the second loading and unloading groove) can be set to be the same to ensure that each rod on the loading and unloading handle 410 can be aligned and embedded in each first loading and unloading groove and each second loading and unloading groove.

[0106] When disassembling the components of the rotor assembly 120, (1) unplug the power cord; (2) remove the front anti-clogging filter cartridge 032; (3) rotate the locking nut 260 off the load-bearing threaded sleeve 250; (4) hold the loading and unloading handle 410 of the loading and unloading tool 04 and unscrew the lifting screws of the mounting flange and the isolation sleeve support bracket; (5) remove the flange. At this time, the entire weight of the axial flow pump system is supported by the support assembly 05; (6) screw the threaded loading and unloading part 430 of the loading and unloading tool 04 into the threaded connection hole of the support bracket 020 threaded connection seat; (7) hold the loading and unloading handle 410 of the loading and unloading tool 04 and push it from top to bottom. At the same time, hold the U-shaped grip handle 530 with the other hand to remove the rotor assembly as a whole.

[0107] When disassembling the components of the switch unit 200, (1) firstly, rotate the locking nut 260 off the load-bearing threaded sleeve 250; (2) hold the friction damping part 440, use the loading and unloading handle 410 to align with and insert into each of the first loading and unloading slots of the locking ring 270 from the lower end opening of the second threaded cavity of the locking nut 260, and rotate the loading and unloading tool 04 to remove the locking ring 270; (3) use the loading and unloading handle 410 to extend into the first threaded cavity from the upper end opening of the locking nut 260, and align with and insert into each of the upper and lower conductive second loading and unloading slots of the locking nut 260, and use the loading and unloading handle 410 to push from top to bottom to push out the first anti-vibration sealing ring 280, the anti-backflow sealing permanent magnet ring 210, the magnetic ring sealing ring 220 and the support ring 230 as a whole from the lower end opening of the second threaded cavity, thereby realizing the overall disassembly of the switch unit 200. The installation process of each component of the switch unit 200 is exactly the reverse of the disassembly process and actions described above. Please refer to the process description above for details.

[0108] It is understood that the above descriptions of directions such as up and down are only based on the accompanying drawings in the instruction manual. In actual loading and unloading operations, the direction of force application for actions such as pushing and jacking can be adjusted according to actual needs.

[0109] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A level-triggered automatic sludge-clearing axial flow pump system for drainage pipelines, characterized in that, The system includes: A trigger pool assembly having a liquid level detection tank and a drain outlet; The dredging module has a drainage chamber pipe inside, the water inlet of the drainage chamber pipe is correspondingly set with the drain outlet, and the water outlet of the drainage chamber pipe is sealed in a preset state. A liquid level detection module is provided, with its detection end disposed on the inner wall of the liquid level detection tank. The liquid level detection module is electrically connected to the sludge removal module and is used to detect the target liquid level in the liquid level detection tank. When the target liquid level reaches and / or exceeds a preset sludge removal trigger position, the liquid level detection module triggers the sludge removal module to push the wastewater out of the outlet end of the drain pipe.

2. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 1, characterized in that, The dredging module includes: A rotating sludge removal unit, wherein the rotating sludge removal unit has a sludge removal chamber, the water inlet of the sludge removal chamber is correspondingly arranged with the drain outlet, and the rotating sludge removal unit is electrically connected to the liquid level detection module; A switching unit is disposed at one end of the rotating sludge removal unit away from the trigger pool assembly. The switching unit has an on / off chamber, the inlet end of which is correspondingly disposed to the outlet end of the sludge removal chamber. The on / off chamber and the sludge removal chamber are combined to form the drainage chamber. The on / off chamber is sealed in a preset state. When the target liquid level reaches and / or exceeds the sludge removal trigger position, the rotating sludge removal unit pushes the wastewater in the sludge removal chamber to the on / off chamber. The on / off chamber is opened by the thrust of the rotating sludge removal unit on the wastewater to allow the wastewater to be discharged. After the wastewater is drained, the on / off chamber is automatically sealed.

3. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 2, characterized in that, The rotary sludge removal unit includes: An electromagnetic stator assembly, which is electrically connected to the liquid level detection module; A rotor assembly is coaxially disposed within the inner cavity of the electromagnetic stator assembly. The rotor assembly has sludge-removing blades and a sludge-removing chamber tube inside, with the sludge-removing blades disposed on the inner wall of the sludge-removing chamber tube. Specifically, when the target liquid level reaches and / or exceeds the sludge removal trigger position, the liquid level detection module triggers the electromagnetic stator assembly to control the rotating component of the rotor assembly to rotate around the central axis of the sludge removal chamber via a magnetic signal, thereby driving the sludge removal blades to push the wastewater in the sludge removal chamber toward the switching unit; when the target liquid level reaches and / or falls below the preset stop discharge position, the liquid level detection module controls the electromagnetic stator assembly to stop working.

4. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 3, characterized in that, The dredging blades include a first group of blades and a second group of blades. The first group of blades is disposed on the inner wall of the dredging chamber near the trigger pool assembly, and the second group of blades is disposed on the inner wall of the dredging chamber near the switch unit. The projection of any blade in the first group onto the axial direction of the dredging chamber does not overlap with the projection of any blade in the second group onto the axial direction of the dredging chamber.

5. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 3, characterized in that, The rotor assembly includes: A rotor permanent magnet ring is coaxially disposed in the inner cavity of the electromagnetic stator assembly, and the inside of the rotor permanent magnet ring has a rotor placement cavity; A support sleeve is disposed in the rotor placement cavity of the rotor permanent magnet ring. The support sleeve has the sludge removal cavity tube inside. The sludge removal blades are disposed on the inner wall of the support sleeve. The rotor permanent magnet ring is used to magnetically rotate around the central axis of the sludge removal cavity tube according to the magnetic induction signal of the electromagnetic stator assembly, so as to drive the support sleeve and the sludge removal blades to rotate around the central axis of the sludge removal cavity tube.

6. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 5, characterized in that, The rotor assembly also includes: A radial limiting ring, comprising a first limiting ring and a second limiting ring, wherein the first limiting ring is disposed on the outer edge wall of the support sleeve near the trigger pool assembly, and the second limiting ring is disposed on the outer edge wall of the support sleeve near the switch unit. A thrust bearing, comprising a first bearing and a second bearing, wherein the first bearing is disposed on the side of the first limiting ring away from the support sleeve, and the second bearing is disposed on the side of the second limiting ring away from the support sleeve; An axial thrust ring, comprising a first thrust ring and a second thrust ring, wherein the first thrust ring is disposed on the side of the first bearing away from the support sleeve, and the second thrust ring is disposed on the side of the second bearing away from the support sleeve.

7. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 6, characterized in that, The rotary sludge removal unit also includes: A damping sealing ring, comprising a first sealing ring and a second sealing ring, wherein the first sealing ring is disposed on the side of the first thrust ring away from the support sleeve, and the second sealing ring is disposed on the side of the second thrust ring away from the support sleeve; A buffer sealing ring, comprising a first set of sealing rings and a second set of sealing rings, wherein the first set of sealing rings is disposed at the interval between the first bearing and the first limiting ring and the first thrust ring respectively, and the second set of sealing rings is disposed at the interval between the second bearing and the second limiting ring and the second thrust ring respectively; The bearing seal ring includes a third seal ring and a fourth seal ring. The third seal ring is embedded in the inner side of the ring of the first bearing, and the fourth seal ring is embedded in the inner side of the ring of the second bearing.

8. The level-triggered automatic sludge-clearing axial flow pump system for drainage pipelines according to claim 7, characterized in that, The rotary sludge removal unit also includes: A limiting washer is disposed between the second sealing ring and the switch unit. The limiting washer has a washer cavity inside, which corresponds to and is connected to the sludge removal cavity and the on / off cavity, respectively. An isolation sleeve is disposed between the electromagnetic stator assembly and the rotor permanent magnet ring, and a preset lubricating oil cavity exists between the isolation sleeve and the rotor permanent magnet ring.

9. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 3, characterized in that, The rotary sludge removal unit also includes: A stator heat sink is fitted onto the outer wall of the electromagnetic stator assembly; The pump body housing is sleeved outside the stator heat sink, and the pump body housing is spaced apart from the stator heat sink and the electromagnetic stator assembly to form a heat dissipation cavity; A stator positioning washer, comprising a first positioning washer and a second positioning washer, wherein the first positioning washer is disposed on the side of the pump body housing near the trigger pool assembly, and the second positioning washer is disposed on the side of the pump body housing near the switch unit; A stator mounting screw passes through the electromagnetic stator assembly and the pump housing. The ends of the stator mounting screw abut against the first positioning washer and the second positioning washer, respectively. The ends of the stator mounting screw are screwed onto the pump housing and the electromagnetic stator assembly by a nut.

10. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 2, characterized in that, The switching unit includes: A backflow prevention sealing permanent magnet ring is provided on the side of the rotating sludge removal unit away from the trigger pool assembly. A magnetic ring seal is disposed on the side of the anti-backflow sealing permanent magnet ring away from the rotating sludge removal unit; A support ring is provided on the side of the magnetic ring seal away from the anti-backflow sealing permanent magnet ring. The internal cavities of the anti-backflow sealing permanent magnet ring, the magnetic ring seal, and the support ring are arranged correspondingly to form the on / off cavity. The inner diameter of the support ring is larger than the inner diameter of the anti-backflow sealing permanent magnet ring and the magnetic ring seal. A magnetically coupled valve has a first valve, a second valve, and a reset element. The first valve and the second valve are interconnected through their respective valve connecting parts, which are connected to the support ring. The reset element is disposed on the side of the first valve and the second valve near the outlet end of the on / off chamber. The first valve and the second valve have magnetism opposite to that of the anti-backflow sealing permanent magnet ring, so that the first valve and the second valve fit against the magnetic ring sealing ring in a preset state to seal the outlet end of the on / off chamber.

11. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 10, characterized in that, The switching unit further includes: A load-bearing threaded sleeve is fitted onto the water outlet end of the rotary sludge removal unit; A locking nut, wherein the first threaded cavity of the locking nut is threaded to the load-bearing threaded sleeve, and the second threaded cavity of the locking nut contains the anti-backflow sealing permanent magnet ring, the magnetic ring sealing ring, the support ring and the magnetic coupling valve; A locking ring is provided on the side of the support ring away from the magnetic ring seal, and the outer wall of the locking ring is screwed to the inner wall of the second screw cavity of the locking nut; The first anti-vibration sealing ring is disposed between the anti-backflow sealing permanent magnet ring and the inner convex ring of the locking nut.

12. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 1, characterized in that, The trigger pool component includes: A trigger pool body, the trigger pool body having the liquid level detection tank and the drain outlet; A support bracket is provided at the drain outlet, and the support bracket abuts against the water inlet of the trigger pool body and the sludge removal module respectively. The threaded connection seat of the support bracket is provided in the liquid level detection tank. A filter cartridge assembly is disposed in the liquid level detection tank and is connected to the threaded connection seat of the support bracket.

13. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 12, characterized in that, The filter cartridge assembly includes: A flange is disposed in the liquid level detection tank. The flange is connected to the threaded connection seat of the support bracket. The flange has a placement groove inside. The side of the flange near the drain outlet has a filter port. The end of the flange away from the drain outlet has a top opening. A pre-clogging anti-clogging filter cartridge is placed in the placement groove of the flange, and multiple anti-clogging filter ports are opened on the cylinder wall of the pre-clogging anti-clogging filter cartridge. A disc sealing ring is disposed on the bottom surface of the outer flange of the top opening.

14. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 13, characterized in that, The trigger pool component also includes: A trigger pool sealing ring is disposed at the opening edge of the trigger pool body; A reinforcing sleeve is fitted onto the outer wall of the trigger pool body; An overflow section is provided at the overflow port near the opening of the trigger pool body; The second anti-vibration sealing ring is disposed between the trigger pool body and the support bracket.

15. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 11, characterized in that, The inner edge of the locking ring near the water outlet is provided with multiple first loading and unloading grooves, and the inner convex ring of the locking nut is provided with multiple second loading and unloading grooves. Both the first loading and unloading grooves and the second loading and unloading grooves are used to cooperate with the loading and unloading handle of the external loading and unloading tool for loading and unloading. The number of loading and unloading handles, the number of first loading and unloading slots, and the number of second loading and unloading slots are the same, and each loading and unloading handle corresponds to one first loading and unloading slot and one second loading and unloading slot.

16. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to claim 13, characterized in that, The bottom of the flange has an inner sliding hole in the axial direction, and the threaded connection seat of the support bracket has a threaded hole in the axial direction; the loading and unloading end of the external loading and unloading tool is used to connect the inner sliding hole and the threaded hole through the lifting screw, and the threaded loading and unloading part of the external loading and unloading tool is used to screw into the threaded hole to load and unload the trigger pool assembly and the sludge removal module.

17. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to any one of claims 1 to 16, characterized in that, The liquid level detection module includes: An ultrasonic liquid level sensor is disposed on the inner wall of the liquid level detection tank, and the ultrasonic liquid level sensor is used to detect the target liquid level in the liquid level detection tank. The control unit is electrically connected to the ultrasonic liquid level sensor and the sludge removal module respectively; when the target liquid level reaches and / or exceeds the sludge removal trigger position, the control unit triggers the sludge removal module to push the wastewater out of the outlet of the drainage chamber pipe.

18. The level-triggered automatic sludge removal axial flow pump system for drainage pipelines according to any one of claims 1 to 16, characterized in that, The system also includes: The support assembly has a fixing part, an mounting part, and a grip handle. The fixing part is sleeved on the outer shell of the dredging module. The mounting part and the grip handle are respectively disposed on both sides of the fixing part. The mounting part is connected to the external wall surface to be installed.

Images