Anti-blocking water suction pump

Abstract

The application discloses an anti-blocking water suction pump and belongs to the technical field of pumps, which comprises a pump shell, a machine shell arranged at the upper end of the pump shell, and an impeller arranged in the pump shell, wherein the upper end of the impeller is provided with a rotating shaft first end. The second filter screen is arranged for filtering the granular impurities in water, and the sponge layer of the first filter screen is used for deep filtration. After double filtration, the impurities in sewage can be basically removed, the filtering effect is good, the impurities in sewage are prevented from entering the pump body, and good anti-blocking effect is achieved. When the filter screen is cleaned, the water suction is conducted through the flushing pipeline into the pump shell through the flushing pump operation, back flushing is conducted, the rotating impeller, the second belt pulley, the belt, the first belt pulley and the second rotating rod are driven to rotate and link up through the motor of the flushing pump, the second filter screen is finally driven to rotate and overturn, and the accumulated impurities on the second filter screen are poured out of the water inlet shell body, so that the blocking impurities are removed.

Description

Technical Field

[0001] This invention belongs to the field of pump technology, specifically relating to an anti-clogging water pump. Background Technology

[0002] Water pumps are widely used in chemical and petroleum production, agricultural production, mining and metallurgical industries, power sectors, nuclear power plants, national defense, pharmaceuticals, water conservancy, and other industries. Water pumps work by using the centrifugal motion of water caused by the rotation of an impeller. When pumping water containing impurities, a shield is needed to isolate the impurities and prevent blockage. Blockage can cause the pump to operate under vacuum, and in severe cases, burn out the motor. However, existing shields accumulate a large amount of impurities after prolonged use, leading to reduced pumping efficiency and requiring shutdown for cleaning. This process is cumbersome, and the shield structure is relatively simple, typically only able to block large particles, resulting in poor filtration performance. Summary of the Invention

[0003] This invention provides an anti-clogging water pump to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an anti-clogging water pump, comprising a pump casing, an outer housing at the upper end of the pump casing, an impeller inside the pump casing, a shaft at the upper end of the impeller, the other end of the shaft being connected to a motor output end via a coupling, the motor being housed within the casing, a liquid outlet pipe on one side of the pump casing, a first control valve on the liquid outlet pipe, and a filter mechanism at the lower end of the pump casing.

[0005] The filtration mechanism includes an inlet housing that connects to the pump housing. A second filter screen is provided inside the inlet housing. A fixed base is provided above the second filter screen. An opening is provided in the middle of the fixed base. A fixed frame plate is provided above the opening. First filter screens are provided on both sides of the fixed frame plate.

[0006] Preferably, the filtration mechanism further includes a declogging component, which includes a flushing pump. The flushing pump includes a motor housing, in which a motor is housed. The motor is connected to a rotating impeller via a rotating shaft. A second pulley is located outside the rotating shaft, and a belt is located outside the second pulley. A first pulley is located inside one end of the belt. A second rotating rod is connected to the center of the first pulley. The second rotating rod passes through the motor housing, extends into the water inlet housing, and is connected to the inside of the second filter screen. A flushing pump housing is located outside the rotating impeller. An inlet is located on one side of the flushing pump housing. A flushing pipe is connected to the upper end of the flushing pump housing. A second control valve is located on the flushing pipe, and one end of the valve is connected to the inside of the pump housing.

[0007] Preferably, the unclogging component further includes a third bevel gear disposed outside the second rotating rod. A fourth bevel gear is meshed with the end of the third bevel gear. One end of the third rotating rod is connected to the upper end of the fourth bevel gear. A second bevel gear is disposed at the other end of the third rotating rod. A first bevel gear is meshed with one side of the second bevel gear. A first rotating rod is connected to one side of the first bevel gear. The first rotating rod extends into the water inlet housing and passes through the first filter screen. A brush strip is disposed on the first rotating rod, and the brushes on the brush strip abut against the inner wall of the first filter screen.

[0008] Preferably, a support frame is provided at the lower end of the water inlet housing.

[0009] Preferably, a rotary sealing ring is provided on the outside of the second rotating rod where it passes through the motor housing.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] This invention incorporates a second filter screen to remove particulate impurities from the water, while the sponge layer of the first filter screen provides deep filtration. This dual filtration effectively removes most impurities from the wastewater, resulting in excellent filtration and preventing impurities from entering the pump body, thus providing a good anti-clogging effect. When cleaning the filter screen, a flushing pump operates, drawing water through a flushing pipe into the pump casing for backwashing. Simultaneously, the flushing pump motor drives the rotating impeller, second pulley, belt, first pulley, and second rotating rod, causing them to rotate in a coordinated manner, ultimately rotating and flipping the second filter screen. The system rotates to pour out the accumulated impurities from the inlet housing, removing the clogging impurities. Through the cooperation of the second rotating rod, the third bevel gear, the fourth bevel gear, the third rotating rod, the second bevel gear, the first bevel gear, and the first rotating rod, the first rotating rod drives the brush strip to rotate, cleaning and brushing the first active filter screen to remove impurities. In addition, the impact of backwash water automatically unclogging the filter screen, removing the impurities from the inlet housing. The unclogging effect is excellent, eliminating the need to open the water pump housing to clean the filter screen, saving time and manpower, and avoiding the drawback of the water pump becoming clogged. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an anti-clogging water pump according to the present invention.

[0013] Figure 2 This is a partial cross-sectional view of the present invention.

[0014] Figure 3 This is a schematic diagram of the filtration mechanism of the present invention.

[0015] Figure 4 This is a schematic diagram of the unblocking component of the present invention.

[0016] Figure 5 This is a side view of the fixing frame plate of the present invention.

[0017] In the diagram: 1. Pump casing; 2. Discharge pipe; 3. First control valve; 4. Machine casing; 5. Filtration mechanism; 51. Inlet casing; 52. Fixed frame plate; 53. First filter screen; 54. Fixed base; 55. Unclogging component; 551. Brush strip; 552. First rotating rod; 553. First bevel gear; 554. Second bevel gear; 555. Second rotating rod; 556. Third bevel gear; 557. Fourth bevel gear; 558. Third rotating rod; 559. First pulley; 5510. Belt; 5511. Second pulley; 5512. Flushing pump; 5513. Flushing pipe; 5514. Second control valve; 56. Second filter screen; 6. Motor; 7. Impeller; 8. Support frame. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-5 The present invention provides the following technical solutions:

[0020] Example 1

[0021] A clog-resistant water pump includes a pump casing 1, with a housing 4 at the upper end of the pump casing 1. An impeller 7 is disposed inside the pump casing 1, and a shaft is disposed at the upper end of the impeller 7. The other end of the shaft is connected to the output end of a motor 6 via a coupling. The motor 6 is disposed inside the housing 4. A liquid outlet pipe 2 is disposed on one side of the pump casing 1, and a first control valve 3 is disposed on the liquid outlet pipe 2. A filter mechanism 5 is disposed at the lower end of the pump casing 1.

[0022] The filtration mechanism 5 includes an inlet housing 51 connected to the pump housing 1. A second filter screen 56 is provided inside the inlet housing 51. A fixing seat 54 is provided above the second filter screen 56. An opening is provided in the middle of the fixing seat 54. A fixing frame plate 52 is provided above the opening. First filter screens 53 are provided on both sides of the fixing frame plate 52. The first filter screens 53 are made of sponge filter screens.

[0023] Specifically, by setting a second filter screen 56 to filter particulate impurities in the water, and the sponge layer of the first filter screen 53 for deep filtration, the overall system can achieve a good filtration effect, preventing impurities in the sewage from entering the pump body and avoiding blockage. The motor 6 drives the impeller 7 to rotate, thereby pumping water, which is discharged through the outlet pipe 2. The sewage first passes through the inlet housing 51, and then through the second filter screen 56 and the first filter screen 53. After double filtration, the impurities in the sewage can be basically discharged, resulting in a good filtration effect and a good anti-clogging effect.

[0024] Example 2

[0025] As an optional case, please refer to Figure 2-5 A clog-resistant water pump, the filtration mechanism 5 further includes a declogging component 55, the declogging component 55 including a flushing pump 5512, the flushing pump 5512 including a motor housing, the motor housing containing a motor, the motor being connected to a rotating impeller via a rotating shaft, a second pulley 5511 being provided outside the rotating shaft, a belt 5510 being provided outside the second pulley 5511, a first pulley 559 being provided inside one end of the belt 5510, a second rotating rod 555 being connected to the center of the first pulley 559, the second rotating rod 555 passing through the motor housing and extending into the water inlet housing 51, and being connected inside the second filter screen 56, the flushing pump housing being provided outside the rotating impeller, a liquid inlet being provided on one side of the flushing pump housing, a filter screen being provided outside the liquid inlet, and a flushing pipe 5513 being connected to the upper end of the flushing pump housing. A second control valve 5514 is provided on 513, and one end of it is connected to the inside of the pump housing 1. For further unclogging, the unclogging component 55 also includes a third bevel gear 556 provided outside the second rotating rod 555. A fourth bevel gear 557 is provided on the end side of the third bevel gear 556 for meshing connection. The upper end of the fourth bevel gear 557 is connected to one end of the third rotating rod 558. The other end of the third rotating rod 558 is provided with a second bevel gear 554. A first bevel gear 553 is meshed on one side of the second bevel gear 554. A first rotating rod 552 is connected on one side of the first bevel gear 553. The first rotating rod 552 extends into the water inlet housing 51 and passes through the first filter screen 53. A brush strip 551 is provided on the first rotating rod 552, and the brush on the brush strip 551 abuts against the inner wall of the first filter screen 53.

[0026] In this embodiment, a support frame 8 is provided at the lower end of the water inlet housing 51 to facilitate liquid intake and discharge of clogging impurities.

[0027] In this embodiment, for the purpose of sealing the motor housing, a rotating sealing ring is provided on the outside of the second rotating rod 555 where it passes through the motor housing.

[0028] Specifically, as the water pump runs for longer periods, impurities accumulate on the filter screen, reducing filtration efficiency and requiring cleaning. The motor 6 is shut off, the first control valve 3 closes, and the second control valve 5514 opens. The flushing pump 5512 starts running, pumping water through the flushing pipe 5513 into the pump casing 1 for backwashing. Simultaneously, the motor of the flushing pump 5512 drives the impeller, which in turn drives the second pulley 5511, which in turn drives the first pulley 559 via belt 5510. This, in turn, drives the second rotating rod 555, causing the second filter screen 56 to rotate. This causes the accumulated impurities to be poured out of the inlet housing 51, removing the blockage. The second rotating rod 551... The rotation of gear 556 drives the third bevel gear 556 to rotate, which in turn drives the meshing fourth bevel gear 557 to rotate. The fourth bevel gear 557 drives the third rotating rod 558 and the second bevel gear 554 to rotate. The rotation of the second bevel gear 554 drives the meshing first bevel gear 553 to rotate. The first bevel gear 553 drives the first rotating rod 552 to rotate. The first rotating rod 552 drives the brush strip 551 to rotate, cleaning and brushing the first active filter screen 53. With the impact of backwash water, the blockage is automatically removed, and impurities are cleaned out of the water inlet housing 51. The blockage removal effect is good, eliminating the need to open the water pump housing to clean the filter screen, saving time and manpower, and avoiding the disadvantage of the water pump being blocked.

[0029] The solution in this embodiment can be selectively combined with solutions in other embodiments.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant water pump, comprising a pump casing (1), characterized in that: The pump casing (1) has a housing (4) at its upper end. An impeller (7) is installed inside the pump casing (1). One end of the impeller (7) is connected to a rotating shaft at its upper end. The other end of the rotating shaft is connected to the output end of a motor (6) via a coupling. The motor (6) is installed inside the housing (4). A liquid outlet pipe (2) is installed on one side of the pump casing (1). A first control valve (3) is installed on the liquid outlet pipe (2). A filter mechanism (5) is installed at the lower end of the pump casing (1). The filtration mechanism (5) includes an inlet housing (51) that connects to the pump housing (1). A second filter screen (56) is provided inside the inlet housing (51). A fixed seat (54) is provided above the second filter screen (56). An opening is provided in the middle of the fixed seat (54). A fixed frame plate (52) is provided above the opening. First filter screens (53) are provided on both sides of the fixed frame plate (52). The filtration mechanism (5) further includes a declogging component (55), which includes a flushing pump (5512). The flushing pump (5512) includes a motor housing, in which a motor is installed. The motor is connected to a rotating impeller via a rotating shaft. A second pulley (5511) is installed outside the rotating shaft. A belt (5510) is installed outside the second pulley (5511). A first pulley (559) is installed inside one end of the belt (5510). A second rotating rod (555) is connected to the center of the first pulley (559). The second rotating rod (555) passes through the motor housing and extends into the water inlet housing (51), and is connected to the inside of the second filter screen (56). A flushing pump housing is installed outside the rotating impeller. An inlet is installed on one side of the flushing pump housing. A flushing pipe (5513) is connected to the upper end of the flushing pump housing. A second control valve (5514) is installed on the flushing pipe (5513), and one end is connected to the inside of the pump housing (1).

2. The anti-clogging water pump according to claim 1, characterized in that: The unclogging component (55) also includes a third bevel gear (556) disposed outside the second rotating rod (555). A fourth bevel gear (557) is provided on the end side of the third bevel gear (556) and meshed with it. The upper end of the fourth bevel gear (557) is connected to one end of the third rotating rod (558). The other end of the third rotating rod (558) is provided with a second bevel gear (554). A first bevel gear (553) is meshed with one side of the second bevel gear (554). A first rotating rod (552) is connected to one side of the first bevel gear (553). The first rotating rod (552) extends into the water inlet housing (51) and passes through the first filter screen (53). A brush strip (551) is provided on the first rotating rod (552). The brush on the brush strip (551) abuts against the inner wall of the first filter screen (53).

3. The anti-clogging water pump according to claim 1, characterized in that: A support frame (8) is provided at the lower end of the water inlet housing (51).

4. The anti-clogging water pump according to claim 1, characterized in that: The second rotating rod (555) has a rotating sealing ring installed on the outside of the motor housing.

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