A sewage pump with anti-blocking function

Abstract

This application relates to the field of sewage pumps, specifically disclosing a sewage pump with anti-clogging function, having an anti-clogging device installed at the pump's suction port; the anti-clogging device includes: a connector, including an inlet communicating with the suction port; a first filter screen covering the inlet; a second filter screen disposed on the first filter screen; a scraper disposed on the connector; and a drive assembly for driving the second filter screen; wherein, the connector is fixedly disposed at the sewage pump's suction port; the first filter screen is fixedly disposed on the connector; the second filter screen is rotatably disposed on the connector; one side of the scraper abuts against the surface of the second filter screen; the beneficial effect of this application is that it provides a sewage pump with anti-clogging function.

Description

Technical Field

[0001] This application relates to the field of sewage pumps, and in particular to a sewage pump with anti-clogging function. Background Technology

[0002] Submersible sewage pumps are a type of pumping equipment specifically designed to pump wastewater, sewage, sludge, and other liquids from low-lying areas such as ponds, sedimentation tanks, sewers, and basements to higher or more distant locations for discharge. Unlike traditional water pumps, submersible sewage pumps are designed to operate completely submerged in liquids. Their unique structure and working principle make them play an important role in sewage treatment, industrial production, municipal facilities, and construction. Submersible sewage pumps typically consist of a motor, pump body, impeller, sealing device, and cable. The motor and pump body are often tightly integrated to form an integral submersible design, allowing the pump to operate directly submerged in liquids.

[0003] A search revealed a submersible sewage pump with publication number CN211500980U. Specifically, the pump includes a pump body, an inlet at the bottom of the pump body penetrating a supporting circular plate, a filter screen mechanism within the inlet's inner cavity, an annular guardrail on the upper surface of the supporting circular plate, and an annular buckle plate fixed to the outer wall of the pump body. The inner wall of the buckle plate is fixedly connected to the outer wall of the annular guardrail via stabilizing mechanisms on both sides. Several outwardly inclined support rods are fixedly connected to the bottom edge of the supporting circular plate. This design allows the submersible sewage pump to be fixed horizontally and vertically to the ground, ensuring it remains vertical during operation. This prevents the pump from tilting and tipping over, which could affect the sewage discharge efficiency. It also prevents large debris from being drawn into the pump body and damaging it. The filter screen can be easily disassembled for cleaning, preventing clogging and ensuring efficient sewage discharge. The pump is also easy to operate.

[0004] During operation, existing submersible sewage pumps are often clogged by various sizes of dirt and impurities at the bottom of the sewage tank, in addition to sewage. These impurities can clog the impeller and cause internal malfunctions. Without anti-clogging mechanisms, submersible sewage pumps cannot be used for extended periods. Furthermore, in the comparative case mentioned above, only a filter screen is used to intercept large impurities, lacking other anti-clogging measures. After long-term use, small impurities that pass through the filter screen accumulate inside the submersible sewage pump, which can also lead to internal malfunctions and prevent long-term use, thus increasing maintenance costs.

[0005] Therefore, it is necessary to design a sewage pump with anti-clogging function that can achieve automatic cleaning. Summary of the Invention

[0006] To address the aforementioned problems, this application provides a sewage pump with anti-clogging function.

[0007] This application provides a sewage pump with anti-clogging function, which has an anti-clogging device installed at the sewage pump suction port;

[0008] Anti-clogging devices include:

[0009] Connector, including an inlet communicating with the suction port;

[0010] The first filter screen covers the water inlet;

[0011] The second filter screen is installed on the first filter screen;

[0012] Scraper, provided on the connector;

[0013] A drive component for driving the second filter screen;

[0014] The connector is fixedly installed at the suction port of the sewage pump; the first filter screen is fixedly installed on the connector; the second filter screen is rotatably installed on the connector; one side of the scraper abuts against the surface of the second filter screen.

[0015] The connecting parts allow the first and second filters to be positioned at the suction port of the sewage pump, effectively blocking a large amount of dirt outside the suction port and preventing further clogging. The drive assembly enables the second filter to rotate, creating a scraping effect relative to the stationary first filter, thus removing impurities located between the first and second filters. The scraper further removes impurities from the surface of the second filter, reducing the risk of clogging.

[0016] Optionally, the connector is a metal tube, which is fixedly connected to the side wall of the water inlet in the axial direction;

[0017] The inlet is located on the side wall of the connector and penetrates in the radial direction;

[0018] The water inlets are arranged in a ring along the circumference of the connector.

[0019] Optionally, a step is formed between two adjacent water inlets to support the first filter screen;

[0020] The two side walls of the steps form slots, and the first filter screen forms a buckle corresponding to the slots;

[0021] A gap is formed between the surface of the first filter screen and the surface of the second filter screen.

[0022] Optionally, a rotating part for supporting the second filter screen is rotatably provided on the connector;

[0023] The rotating component includes a rotating disk and a bracket fixedly connected to the rotating disk;

[0024] The rotating disk and the connecting piece rotate together; the support surface forms a groove that is embedded with the second filter screen.

[0025] Optionally, the driver components include:

[0026] The gear disk is fixedly mounted on the rotating disk;

[0027] The ratchet teeth mesh with the gear disc;

[0028] The slider slides along the circumference of the connector;

[0029] The connector forms a guide groove for guiding the slider to slide along the circumference of the connector; a reset member is provided between the slider and the groove wall of the guide groove; and a ratchet is unidirectionally rotatable on the slider.

[0030] Optionally, a screen is set around the second filter screen as the connector;

[0031] The scraper is fixedly mounted on the screen.

[0032] Optionally, the sewage pump also has an outlet with a flow sensor located at the outlet.

[0033] Optionally, a central processing unit electrically connected to the flow sensor may also be included;

[0034] The central processing unit is electrically connected to the electromagnet.

[0035] In summary, the beneficial effect of this application is that it provides a sewage pump with an anti-clogging function and an automatic cleaning function. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0037] Figure 2 This is a schematic diagram of the anti-blocking device in the embodiments of this application;

[0038] Figure 3 This is a cross-sectional view of the anti-blocking device in the embodiments of this application;

[0039] Figure 4 This is a schematic diagram of the connector structure in an embodiment of this application;

[0040] Figure 5 This is a schematic diagram of the structure of the connector and the rotating component in the embodiments of this application;

[0041] Figure 6 This is a schematic diagram of the structure of the driving component in the embodiments of this application;

[0042] Figure 7 This is a schematic diagram of the rotating component in an embodiment of this application.

[0043] Reference numerals: 100, Sewage pump; 101, Anti-clogging device; 1, Connector; 2, First filter screen; 3, Second filter screen; 4, Scraper; 6, Inlet; 7, Inlet; 8, Step; 9, Slot; 11, Rotating component; 12, Bracket; 13, Interlocking groove; 14, Gear disk; 15, Ratchet; 16, Slider; 17, Guide groove; 18, Permanent magnet; 19, Electromagnet; 20, Flow sensor; 21, Screen. Detailed Implementation

[0044] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0045] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0046] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0047] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0048] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0049] This application discloses a sewage pump 100 with anti-clogging function, which has an anti-clogging device 101 installed at the suction port 6 of the sewage pump 100. The anti-clogging device 101 includes: a connector 1, a first filter screen 2, a second filter screen 3, a scraper 4, and a drive assembly. Specifically, the connector 1 is a metal pipe, which is made of corrosion-resistant bronze, austenitic stainless steel, or iron with an anti-corrosion coating. The connector 1 is connected to the suction port 6 in the axial direction and is fixed by bolts. More specifically, the connector 1 includes a water inlet 7 that communicates with the suction port 6. The water inlet 7 is located on the side wall of the connector 1 and penetrates in the radial direction. The water inlets 7 are arranged in a ring along the circumference of the connector 1. When the sewage pump 100 is working, water enters the suction port 6 from the water inlet 7.

[0050] A step 8 is formed between two adjacent water inlets 7, and grooves 9 are formed on both sides of the step 8. The first filter screen 2 forms a buckle corresponding to the groove 9. The buckle is embedded in the groove 9 so that the first filter screen 2 is fixed on both sides of the inner wall of the water inlet 7 to completely cover the water inlet 7. A second filter screen 3 is also provided on the connector 1, and a gap is formed between the surface of the first filter screen 2 and the surface of the second filter screen 3. Due to the formation of the gap, dirt can be retained, preventing the clogging from aggravating. The first filter screen 2 and the second filter screen 3 can filter the dirt in the water and prevent it from entering the sewage pump 100 and causing blockage.

[0051] More specifically, a rotating member 11 is rotatably mounted on the connector 1 to support the second filter screen 3 so as to drive the second filter screen to rotate in the circumferential direction; wherein, the rotating member 11 includes a rotating disk and a bracket 12 fixedly connected to the rotating disk, and the surface of the bracket 12 forms an interlocking groove 13 to interlock with the second filter screen 3; with such a configuration, when the second filter screen 3 starts to rotate, it can agitate the dirt existing between the first filter screen 2 and the second filter screen 3, and has the effect of unblocking.

[0052] More specifically, the connecting member 1 is provided with a drive assembly for driving the rotating disk to rotate; the drive assembly includes: a gear disk 14, a ratchet 15, and a slider 16; specifically, the gear disk 14 is coaxially and fixedly connected to the rotating disk; the connecting member 1 forms a guide groove 17, and the slider 16 is movably disposed in the guide groove 17; the ratchet 15 is rotatably disposed on the slider 16 and meshes with the gear disk 14; when the slider 16 moves, the ratchet 15 and the gear disk 14 are limited to drive the gear disk 14 to rotate; the slider 16 and the wire groove have a reset member, which is a spring, so that the slider 16 can automatically reset after moving; when resetting, the ratchet 15 can rotate on the slider 16 and thus cannot drive the gear disk 14 to rotate; therefore, it can be understood that the drive assembly only allows the gear disk 14 to rotate in one direction.

[0053] More specifically, a permanent magnet 18 is provided on the slider 16; an electromagnet 19 is provided in the guide groove 17 at the end opposite to the slider 16; the magnetism generated by the electromagnet 19 after being energized can attract the permanent magnet to move, which can be understood as controlling the slider 16 to reciprocate in the guide groove 17 by energizing / de-energizing the electromagnet 19; the sewage pump 100 also has a water outlet, and a flow sensor 20 is provided at the water outlet; the flow sensor 20 is electrically connected to the central processing unit, which receives and processes the information transmitted by the flow sensor 20; when the sewage pump 100 is working, if the flow sensor 20 detects that the flow rate has decreased while the pump power remains unchanged, the central processing unit determines that a blockage has occurred and controls the electromagnet 19 to be energized.

[0054] In another feasible embodiment, the connector 1 is provided with a screen 21 around the second filter screen 3, and the scraper 4 is fixedly provided on the screen 21; wherein, the end of the scraper 4 is in contact with the surface of the second filter screen 3; it can be understood that the screen 21 can filter out impurities with large particles; when the second filter screen 3 starts to rotate, the scraper 4 can scrape the surface of the second filter screen 3 to achieve the effect of unblocking.

[0055] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0056] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A sewage pump with anti-clogging function, comprising an anti-clogging device installed at the suction port of the sewage pump; Its features are, The anti-blocking device includes: A connector, including a water inlet communicating with the water intake; A first filter screen covers the water inlet; The second filter screen is disposed on the first filter screen; A scraper is provided on the connector; A driving component for driving the second filter screen; The connector is fixedly mounted at the suction port of the sewage pump; the first filter screen is fixedly mounted on the connector; the second filter screen is rotatably mounted on the connector; and one side of the scraper abuts against the surface of the second filter screen. The connector is rotatably provided with a rotating component for supporting the second filter screen; The rotating component includes a rotating disk and a bracket fixedly connected to the rotating disk; The rotating disk is rotatably engaged with the connecting member; the surface of the bracket forms an interlocking groove that interlocks with the second filter screen. The driving component includes: A gear disk is fixedly mounted on the rotating disk; The ratchet teeth mesh with the gear disc; The slider slides along the circumferential direction of the connector; The connector forms a guide groove for guiding the slider to slide along the circumferential direction of the connector; a reset member is provided between the slider and the groove wall of the guide groove; the ratchet is unidirectionally rotatable on the slider; A permanent magnet is provided on the slider; An electromagnet is installed in the guide groove at one end opposite to the slider; The sewage pump also has an outlet, and a flow sensor is installed at the outlet. It also includes a central processing unit, which is electrically connected to the flow sensor; The central processing unit is electrically connected to the electromagnet.

2. A sewage pump with anti-clogging function according to claim 1, characterized in that: The connector is a metal tube, which is fixedly connected to the side wall of the water inlet along the axial direction; The water inlet is located on the side wall of the connector and penetrates it in the radial direction; The water inlets are arranged in a ring along the circumference of the connector.

3. A sewage pump with anti-clogging function according to claim 1, characterized in that: A step is formed between two adjacent water inlets to support the first filter screen; The first filter screen forms a buckle corresponding to the slot on both sides of the step. A gap is formed between the surface of the first filter screen and the surface of the second filter screen.

4. A sewage pump with anti-clogging function according to claim 1, characterized in that: The connector is located around the second filter screen, where a sieve is set. The scraper is fixedly mounted on the screen.

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