Anti-blocking backwashing sewage pump

Abstract

The utility model discloses an anti-blocking backflushing sewage pump which comprises a pump box, a runner hub and an eccentric rotor. Wherein the runner hub and the eccentric rotor are rotatably mounted on the inner side of the pump box, and the periphery of the runner hub is slidably abutted against the inner side of the pump box. A plurality of piston cylinders evenly distributed in the circumferential direction are arranged on the surface of the runner hub, a plurality of pistons are arranged on the surface of the eccentric rotor, one end of each piston is fixedly connected with a linkage pin, and a sliding sleeve groove is formed in the inner side of the eccentric rotor. According to the utility model, the position of the eccentric rotor deviates from the central axis of the pump, the design can generate periodic compression and release actions when the rotor rotates, the flowing effect similar to pulse generates stronger disturbance when sewage passes through, dirt is prevented from depositing and blocking in a pipeline or a pump cavity, and the liquid discharge hopper and the liquid inlet hopper adopt the large-caliber design, so that the sewage discharge hopper and the liquid inlet hopper are convenient to use. And blocking points when sewage enters and is discharged out of the pump body are reduced, so that dirt is more easily discharged, and the blocking condition in the pump body is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage pumps, in particular to an anti-clogging backwash sewage pump. Background Art

[0002] In existing sewage pump technology, traditional sewage pumps typically utilize a fixed rotor structure, transporting sewage through the rotation of the stator and rotor. Typical pump body designs feature small inlet and outlet ports and a simple flow path design, making them prone to clogging when discharging sewage containing high concentrations of impurities or large particles. Furthermore, traditional sewage pumps typically operate at a constant speed, unable to flexibly adjust flow and pressure to meet varying sewage treatment requirements. This design proves inadequate when dealing with complex and variable sewage conditions (such as sewage containing large amounts of solid particles), requiring frequent downtime for maintenance and reducing efficiency.

[0003] The design defects of traditional sewage pumps are mainly reflected in the following aspects:

[0004] Inadequate anti-clogging performance: The rotor and stator axes of existing sewage pumps coincide, preventing sufficient fluid disturbance. This results in relatively smooth sewage flow and a lack of pulsed self-cleaning. This makes it prone to dirt accumulation and blockage. Furthermore, smaller inlets and outlets create flow blockage points where dirt is more likely to accumulate, further increasing the risk of blockage.

[0005] Limitations of flow and pressure regulation: Traditional sewage pumps typically lack flow and pressure regulation capabilities, making them unable to adapt to varying sewage discharge requirements. The fixed pump speed results in a single delivery capacity, making it difficult to meet changing operating conditions. Sewage viscosity, impurity content, and particle size vary across different sewage treatment scenarios. Pumps lacking regulation capabilities are less adaptable and less efficient when handling these complex wastewater types.

[0006] In view of this, research and improvement are carried out on the existing problems, and an anti-clogging backwash sewage pump is provided to solve the current problems. The purpose is to achieve the purpose of solving the problems and improving the practical value through this technology. Utility Model Content

[0007] The utility model aims to solve the technical problems existing in the prior art or related technologies.

[0008] This utility model relates to an anti-clogging, backwash sewage pump comprising a pump housing, a rotor, and an eccentric rotor. The anti-clogging function of the sewage pump is achieved through the eccentric position design of the eccentric rotor and the large-diameter discharge and inlet hoppers. Furthermore, an adjustment card and a sliding sleeve groove structure are used to adjust the eccentricity of the eccentric rotor to meet different sewage treatment requirements.

[0009] A blockage-proof backwash sewage pump comprises: a pump box, a rotor body and an eccentric rotor, the rotor body and the eccentric rotor are rotatably mounted on the inner side of the pump box, and the outer periphery of the rotor body is in sliding contact with the inner side of the pump box, the surface of the rotor body is provided with a plurality of piston cylinders evenly distributed in the circumferential direction, the surface of the eccentric rotor is provided with a plurality of pistons, and one end of the piston is fixedly connected with a linkage pin, the inner side of the eccentric rotor is provided with a sliding sleeve groove, the linkage pin is slidably mounted on the inner side of the sliding sleeve groove, the axis center of the eccentric rotor deviates from the axis center of the pump box and the rotor body, a liquid discharge hopper and a liquid inlet hopper are respectively provided on both sides of the pump box, and a sealing cover is detachably mounted on one side of the pump box.

[0010] Through the above structural design, the impeller body and the eccentric rotor produce periodic compression and release effects during rotation, causing the sewage to flow in pulses, effectively preventing the sedimentation of dirt in the pump cavity and achieving an anti-clogging effect.

[0011] In a preferred example, the present invention can be further configured as follows: sewage pipes deviating from the rotation direction of the impeller body are provided on the surfaces of the liquid discharge hopper and the liquid inlet hopper.

[0012] This structure uses large-diameter discharge hopper and inlet hopper to reduce blockage points when sewage enters and discharges the pump body, making it easier to discharge waste, thereby further reducing the risk of blockage.

[0013] In a preferred example, the present invention can be further configured as follows: the eccentric rotor is located between the liquid discharge hopper and the liquid inlet hopper and close to one side of the liquid discharge hopper.

[0014] By placing the eccentric rotor close to the drainage bucket, the sewage discharge efficiency is effectively improved, the residence time of sewage inside the pump body is reduced, and blockage is prevented.

[0015] In a preferred example, the present invention can be further configured as follows: an adjustment rod slidably sleeved on the inner side of the sealing cover is rotatably installed on one side of the eccentric rotor, and an adjustment card is provided on the surface of the adjustment rod, and a sleeve groove for guiding the sliding of the adjustment rod and the adjustment card is opened on the surface of the sealing cover.

[0016] Through the design of the adjusting rod and the sleeve groove, the eccentricity of the eccentric rotor can be adjusted to achieve flexible adjustment of flow and pressure, adapt to different sewage discharge needs, and improve the adaptability of the pump.

[0017] In a preferred example, the present invention can be further configured as follows: the eccentric rotor is slidably sleeved on the inner side of the piston cylinder, and the outer periphery of the eccentric rotor is in interference contact with the inner side of the piston cylinder, and the outer periphery of the wheel body is in interference contact with the inner side of the pump box.

[0018] This structural design allows for a tight fit between the eccentric rotor and the impeller body, as well as between the impeller body and the pump box, thereby enhancing the stability of the entire sewage pump structure, effectively preventing leakage, and improving the pump's operating efficiency.

[0019] In a preferred example, the present invention can be further configured as follows: the sleeve groove is a slideway structure and is arranged concentrically with the inner side of the eccentric rotor; a drive motor for driving the eccentric rotor to rotate is provided on one side of the pump box.

[0020] Through the combination of the slideway structure and the drive motor, the smooth rotation of the eccentric rotor is achieved, ensuring the continuity and effectiveness of the anti-blocking function.

[0021] In a preferred example, the present invention can be further configured as follows: the output end of the drive motor is electrically connected to a control mainboard, and the control mainboard is used to control the rotation direction of the impeller to achieve active pumping and backwash pumping of the sewage pump.

[0022] By controlling the mainboard to adjust the pumping direction, forward pumping and backflush pumping functions can be achieved. When encountering blockage, reverse flushing can be performed to effectively prevent blockage and extend the service life of the equipment.

[0023] The beneficial effects achieved by the utility model are:

[0024] 1. In this utility model, the eccentric rotor is offset from the central axis of the pump. This design creates a periodic compression and release action as the rotor rotates, similar to a pulsed flow effect. This pulsed flow creates a strong disturbance as sewage passes through, preventing waste from accumulating and clogging in the pipe or pump cavity. The large-diameter design of the discharge and inlet hoppers reduces the number of obstructions when sewage enters and exits the pump, making it easier for waste to be discharged and further reducing blockage within the pump body.

[0025] 2. In the present invention, the eccentricity of the eccentric rotor can be adjusted by utilizing the adjustment card and the sliding sleeve groove structure, thereby realizing the regulation of the flow and pressure of the sewage pump, adapting to different sewage discharge requirements, and improving the flexibility of the pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the exploded structure of an embodiment of the present utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the runner body and the eccentric rotor of one embodiment of the utility model;

[0029] Figure 4 This is a schematic diagram of the pump box structure of an embodiment of the utility model;

[0030] Figure 5 This is a schematic diagram of the exploded structure of an eccentric rotor in one embodiment of the present utility model.

[0031] Reference numerals:

[0032] 100, pump box; 110, sealing cover; 120, liquid discharge hopper; 130, liquid inlet hopper; 200, rotor body; 210, piston cylinder; 300, eccentric rotor; 310, piston; 301, adjustment card; 302, sliding sleeve groove; 311, linkage pin. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0034] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0035] The following is combined with Figure 1-Figure 5 An anti-clogging backflushing sewage pump is described in some embodiments of the present invention.

[0036] A blockage-resistant backwash sewage pump includes a pump case 100, a rotor body 200, and an eccentric rotor 300. The rotor body 200 and the eccentric rotor 300 are rotatably mounted on the inner side of the pump case 100, and the outer periphery of the rotor body 200 slides against the inner side of the pump case 100. The surface of the rotor body 200 is provided with a plurality of piston cylinders 210 evenly distributed in the circumferential direction. The surface of the eccentric rotor 300 is provided with a plurality of pistons 310, and one end of each piston 310 is fixedly connected to a linkage pin 311. The inner side of the eccentric rotor 300 is provided with a sliding sleeve groove 302, and the linkage pin 311 slides inside the sliding sleeve groove 302. The axis of the eccentric rotor 300 deviates from the axis of the pump case 100 and the rotor body 200. A liquid discharge hopper 120 and a liquid inlet hopper 130 are respectively provided on both sides of the pump case 100, and a sealing cover 110 is detachably mounted on one side of the pump case 100.

[0037] In this embodiment, the eccentric structure design allows the eccentric rotor 300 to produce periodic compression and release actions during rotation, forming a pulse-like flow effect to prevent dirt deposition and blockage; the large-diameter discharge hopper 120 and inlet hopper 130 design further reduces blockage when sewage enters and is discharged.

[0038] In a preferred example, the present invention can be further configured as follows: by adopting the above technical solution, the design of the eccentric position of the eccentric rotor 300 and the coordination of the liquid discharge hopper 120 and the liquid inlet hopper 130 effectively enhance the fluidity of sewage passing through the pump cavity, thereby improving the anti-blocking effect.

[0039] In another embodiment, the present invention further includes an adjustment structure to adapt to different working conditions. Specifically, the outer periphery of the eccentric rotor 300 is provided with a sliding sleeve groove 302, and an adjustment card for cooperating with the adjustment card 301 is installed on the inner side of the pump box 100, so that the eccentricity of the eccentric rotor 300 can be adjusted, thereby controlling the flow rate and pressure of the sewage pump.

[0040] In addition, in this embodiment, by arranging multiple evenly distributed pistons 310 on the surface of the eccentric rotor 300 and cooperating with the linkage pin 311, the pulse effect of the eccentric rotation on the fluid is further enhanced, and the anti-blocking performance of the sewage discharge process is enhanced.

[0041] In a preferred example, the present invention can be further configured as follows: by adopting the above technical solution, the design of the adjustment card and the sliding sleeve groove can adjust the eccentricity of the eccentric rotor 300 as needed, thereby adapting to various sewage discharge environments and improving the adaptability and service life of the equipment.

[0042] In another specific configuration, the present invention also includes a drive motor, whose output terminal is electrically connected to a control board, for controlling the rotation direction of the rotor 200 to achieve active pumping and backwash pumping. Specifically, the control board switches the rotation direction of the rotor 200 based on sewage flow requirements. When a blockage is detected, backwash pumping mode is automatically activated to push the blocked sewage back into the sewage pipe, further ensuring smooth drainage.

[0043] In a preferred example, the present invention can be further configured as follows: by adopting the above-mentioned technical solution, the configuration of the drive motor and the control main board enables the sewage pump to intelligently switch the working mode, thereby automatically backflushing to remove dirt when blocked, further improving the reliability and automation level of the system.

[0044] Throughout this specification, terms such as "one embodiment," "some embodiments," or "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0045] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An anti-clogging backwash sewage pump, characterized in that: include: A pump box (100), a rotor body (200) and an eccentric rotor (300), wherein the rotor body (200) and the eccentric rotor (300) are rotatably mounted on the inner side of the pump box (100), and the outer periphery of the rotor body (200) is in sliding contact with the inner side of the pump box (100), the surface of the rotor body (200) is provided with a plurality of piston cylinders (210) evenly distributed in the circumferential direction, and the surface of the eccentric rotor (300) is provided with a plurality of pistons (310), and the pistons (310) are arranged on the inner side of the pump box (100). One end is fixedly connected with a linkage pin (311), the inner side of the eccentric rotor (300) is provided with a sliding sleeve groove (302), and the linkage pin (311) is slidably installed on the inner side of the sliding sleeve groove (302). The axis of the eccentric rotor (300) deviates from the axis of the pump box (100) and the rotor body (200), and the two sides of the pump box (100) are respectively provided with a liquid discharge hopper (120) and a liquid inlet hopper (130), and a sealing cover (110) is detachably installed on one side of the pump box (100).

2. The anti-clogging backwash sewage pump according to claim 1, characterized in that: The surfaces of the liquid discharge hopper (120) and the liquid inlet hopper (130) are provided with sewage pipes deviating along the rotation direction of the rotor body (200).

3. The anti-clogging backwash sewage pump according to claim 1, characterized in that: The eccentric rotor (300) is located between the liquid discharge hopper (120) and the liquid inlet hopper (130) and close to one side of the liquid discharge hopper (120).

4. The anti-clogging backwash sewage pump according to claim 1, characterized in that: An adjustment rod slidably sleeved on the inner side of the sealing cover (110) is rotatably mounted on one side of the eccentric rotor (300), and an adjustment card (301) is provided on the surface of the adjustment rod. A sleeve groove for guiding the sliding of the adjustment rod and the adjustment card (301) is provided on the surface of the sealing cover (110).

5. The anti-clogging backwash sewage pump according to claim 1, characterized in that: The eccentric rotor (300) is slidably sleeved on the inner side of the piston cylinder (210), and the outer periphery of the eccentric rotor (300) is in interference contact with the inner side of the piston cylinder (210), and the outer periphery of the wheel body (200) is in interference contact with the inner side of the pump box (100).

6. The anti-clogging backwash sewage pump according to claim 1, characterized in that: The sliding sleeve groove (302) is a slideway structure and is arranged concentrically with the inner side of the eccentric rotor (300). A driving motor for driving the eccentric rotor (300) to rotate is provided on one side of the pump box (100).

7. The anti-clogging backwash sewage pump according to claim 6, characterized in that: The output end of the driving motor is electrically connected to a control mainboard, and the control mainboard is used to control the rotation direction of the rotor body (200) to achieve active pumping and backwash pumping of the sewage pump.

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