Automatic impurity removal type centrifugal pump

Abstract

The invention relates to the technical field of centrifugal pump impurity removal, in particular to an automatic impurity removal type centrifugal pump. Comprising a base, a centrifugal pump body, a controller, supporting plates, a connecting pipe, a blow-off pipe, a baffle, a fixing plate and the like, the centrifugal pump body and the controller are both installed on the top of the base, the supporting plates are symmetrically connected to the top of the base, the connecting pipe is connected to the supporting plates, and one end of the connecting pipe is connected with and communicated with a water inlet of the centrifugal pump body; the blow-off pipe is connected to the bottom of the connecting pipe and keeps communication, and the baffle and the fixing plate are connected to the inner wall of the connecting pipe. Through cooperation of the rotating plate, the filter plates and the rotating assembly, the functions of effective filtering and automatic switching of impurities can be achieved, when many impurities are attached to the surface of the filter plate on one side, the rotating assembly drives the rotating plate to rotate by 180 degrees, the positions of the two filter plates can be exchanged, it is ensured that water flow continuously passes through the clean filter plates to be filtered, and the filtering efficiency is improved. Therefore, the problem that the working efficiency is reduced due to impurity accumulation can be avoided, and the requirement for manual disassembly and cleaning can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of centrifugal pump impurity removal, in particular to an automatic impurity removal type centrifugal pump. Background Art

[0002] In industrial production and daily life water supply systems, centrifugal pumps, as key fluid transmission equipment, play an important role. However, with the expansion of application areas and changes in environmental conditions, a significant challenge facing traditional centrifugal pumps is their sensitivity to impurities.

[0003] Specifically, in the actual operation process, since the water source or working medium inevitably contains various suspended particles, sand, silt and other tiny debris, these impurities can easily enter the centrifugal pump with the fluid. Once the impurities enter the pump, they will not only interfere with the normal rotation of the impeller, increase the running resistance of the pump, and reduce the working efficiency of the pump, but also cause the inner wall of the pump body and the rotating parts to wear more severely after long-term accumulation, seriously affecting the performance and service life of the equipment. What is more difficult is that when the impurities accumulate to a certain extent, it is often necessary to take downtime measures for manual removal of impurities, which will not only interrupt the normal production process and cause waste of time and resources, but also increase maintenance costs and manpower investment. Especially for some industries with high requirements for continuous operation and large downtime losses, frequent downtime cleaning has become one of the important factors restricting production efficiency. In addition, the risk of mechanical damage during the disassembly process should not be underestimated. Any improper operation may further damage the structural integrity of the pump and lead to more serious failures. Summary of the invention

[0004] In view of this, the present invention provides an automatic impurity removal centrifugal pump, which can overcome the shortcomings of existing centrifugal pumps that, during use, impurities are easily accumulated inside the pumps, reducing the working efficiency of the pumps, and that they need to be manually disassembled and impurities removed regularly, which is time-consuming and labor-intensive and affects working efficiency.

[0005] The technical implementation scheme of the present invention is: an automatic impurity removal centrifugal pump, including a base, a centrifugal pump body, a controller, a support plate, a connecting pipe, a sewage pipe, a baffle, a fixed plate, a rotating plate, a filter plate, a rotating assembly, a water blocking assembly and a cleaning mechanism. The centrifugal pump body and the controller are both installed on the top of the base, the support plate is symmetrically connected to the top of the base, the connecting pipe is connected to the support plate, and one end of the connecting pipe is connected to the water inlet of the centrifugal pump body and maintained in communication, the sewage pipe is connected to the bottom of the connecting pipe and maintained in communication, the baffle and the fixed plate are both connected to the inner wall of the connecting pipe, and a rotating plate is rotatably connected between the baffle and the fixed plate, two filter plates are respectively connected to the top and bottom of the rotating plate, and the filter plate is in contact with the inner wall of the connecting pipe, the rotating assembly is used to drive the rotating plate to rotate, the water blocking assembly is used to block the sewage pipe, and the cleaning mechanism is used to clean the filter plate.

[0006] In a preferred embodiment of the present invention, the rotating assembly includes a first drive motor and a driving gear, the first drive motor is mounted on one of the support plates, the driving gear is connected to the output shaft of the first drive motor, and one end of the rotating shaft of the rotating plate is circumferentially spaced with tooth holes, and the tooth holes are meshed with the driving gear.

[0007] In a preferred embodiment of the present invention, the water blocking assembly includes a connecting block, a first sliding rod, a water blocking plate and a connecting spring. The connecting block is connected to the inner wall of the sewage pipe, the first sliding rod is slidably connected to the connecting block, the water blocking plate is connected to the lower end of the first sliding rod, and the water blocking plate is in contact with and fits the inner wall of the sewage pipe. The connecting spring connects the water blocking plate and the connecting block.

[0008] In a preferred embodiment of the present invention, the cleaning mechanism includes a support frame, a second drive motor, a sliding plate, a screw and a control component. The support frame is connected to the bottom of the connecting pipe, the second drive motor is installed on another support plate, the sliding plate is slidably connected to the support frame, a water hole is opened on the sliding plate, and the top of the sliding plate is in contact with the bottom of the fixed plate. The screw is rotatably connected to the support frame, the screw is threadedly connected to the sliding plate, and the end of the screw is connected to the output shaft of the second drive motor. The control component is used to control the opening and closing of the water hole.

[0009] In a preferred embodiment of the present invention, the control component includes a connecting plate, a second sliding rod, a circular plate and a reset spring, the connecting plate is connected to the side of the sliding plate, and the connecting plate is circumferentially spaced with through holes, the second sliding rod is slidably connected to the connecting plate, and the second sliding rod passes through the water hole, the circular plate is connected to one end of the second sliding rod, and the circular plate blocks the water hole, and the reset spring connects the circular plate and the connecting plate.

[0010] In a preferred embodiment of the present invention, it also includes a round rod, a connecting seat, a support plate, a rocker rod and a connecting column. The round rod is connected to the other end of the second sliding rod, the connecting seat is connected to the side of the sliding plate, the support plate is connected to the side of the fixed plate, the rocker rod is rotatably connected to the connecting seat, and a guide hole is opened at one end of the rocker rod, the round rod is located in the guide hole, the connecting column is connected to the other end of the rocker rod, and the connecting column is in contact with the support plate.

[0011] In a preferred embodiment of the present invention, it also includes a first brush plate and a second brush plate, the two first brush plates are respectively connected to the top and bottom of the rotating plate, the second brush plate is connected to the side of the filter plate, and the second brush plate is spaced apart with circular holes corresponding to the filter holes on the filter plate.

[0012] In a preferred embodiment of the present invention, a hose is further included. The hose is placed on the top of the base, and one end of the hose is connected to the lower end of the sewage pipe and maintained in communication.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention can achieve effective filtering of impurities and automatic switching functions through the cooperation of the rotating plate, the filter plate and the rotating assembly. When more impurities are attached to the surface of the filter plate on one side, the rotating plate is driven to rotate 180 degrees by the rotating assembly, so that the positions of the two filter plates can be interchanged, ensuring that the water flow continues to pass through the clean filter plate for filtration, thereby avoiding the problem of reduced work efficiency due to impurity accumulation and reducing the need for manual disassembly and cleaning.

[0014] 2. The present invention can realize automatic backwashing and sewage discharge of used filter plates through the cooperation of the water blocking component and the cleaning mechanism. During the reciprocating movement of the sliding plate, when the water pressure on its left side increases, the water blocking plate can be pushed downward to open the sewage pipe, so that the high-speed flowing water can reversely flush the impurities on the filter plate and discharge them through the hose, thereby effectively cleaning the sediment on the filter plate and ensuring the long-term stable operation of the system.

[0015] 3. The present invention can complete the impurity removal process without stopping the machine, thereby greatly improving work efficiency and reducing resource waste and labor costs caused by frequent shutdowns for cleaning. In addition, the design of the first brush plate and the second brush plate can further enhance the impurity interception capability, reduce the risk of impurities entering the pump body, extend the service life of the equipment, and reduce maintenance frequency and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 The figure is a schematic diagram of the installation of the baffle, the fixed plate, the rotating plate, the filter plate and the rotating assembly of the present invention.

[0018] Figure 3 It is a schematic diagram of the meshing of the driving gear and the tooth hole of the present invention.

[0019] Figure 4 It is a schematic diagram of the installation of the water blocking assembly of the present invention.

[0020] Figure 5 It is a schematic diagram of the installation of the cleaning mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the specific structure of the cleaning mechanism of the present invention.

[0022] Figure 7 It is a schematic diagram of the installation of the control component of the present invention.

[0023] Figure 8 It is another state schematic diagram of the control component of the present invention.

[0024] Fig. 9 The figure is a schematic diagram of the installation of the round rod, the connecting seat and the abutment plate of the present invention.

[0025] Fig.10 It is a schematic diagram of the coordination of the round rod, the swing rod, the abutment plate and the connecting column of the present invention.

[0026] Fig.11 It is a schematic diagram of the specific structure of the swing rod and the connecting column of the present invention.

[0027] Fig.12 It is a schematic diagram of the installation of the first brush plate and the second brush plate of the present invention.

[0028] Fig.13 It is a schematic diagram of the specific structure of the second brush plate of the present invention.

[0029] Among them, the above-mentioned drawings include the following drawing marks: 1-base, 2-centrifugal pump body, 3-controller, 4-support plate, 5-connecting pipe, 6-drain pipe, 7-baffle, 8-fixed plate, 9-rotating plate, 10-filter plate, 11-first drive motor, 12-driving gear, 13-tooth hole, 14-connecting block, 15-first slide rod, 16-water blocking plate, 17-connecting spring, 18-support frame, 19-second drive motor, 20-sliding plate, 2001-water hole, 21-screw rod, 22-connecting plate, 2201-through hole, 23-second slide rod, 24-circular plate, 25-reset spring, 26-round rod, 27-connecting seat, 28-resistance plate, 29-rocker, 2901-guide hole, 30-connecting column, 31-first brush plate, 32-second brush plate, 3201-circular hole, 33-hose. DETAILED DESCRIPTION

[0030] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0031] Embodiment: An automatic impurity removal centrifugal pump, such as Figure 1-Figure 8As shown, it includes a base 1, a centrifugal pump body 2, a controller 3, a support plate 4, a connecting pipe 5, a drain pipe 6, a hose 33, a baffle 7, a fixed plate 8, a rotating plate 9, a filter plate 10, a rotating assembly, a water blocking assembly and a cleaning mechanism. The centrifugal pump body 2 is installed on the top right side of the base 1, and the controller 3 is installed on the top left side of the base 1. Two supporting plates 4 are also connected to the top left side of the base 1. A connecting pipe 5 is connected between the upper parts of the two supporting plates 4, and the right end of the connecting pipe 5 is connected to the water inlet of the centrifugal pump body 2 and maintained in communication. The drain pipe 6 is connected to the left side of the bottom of the connecting pipe 5 and maintained in communication. A hose 33 is placed on the left side of the top of the base 1, and the hose 33 The upper end is connected to the lower end of the sewage pipe 6 and maintains communication, a baffle plate 7 is connected to the left side of the inner wall of the connecting pipe 5, a fixed plate 8 is connected to the right side of the inner wall of the connecting pipe 5, and a rotating plate 9 is rotatably connected between the baffle plate 7 and the fixed plate 8, the front and rear sides of the rotating plate 9 are in contact with the inner wall of the connecting pipe 5, so as to separate the upper and lower sides of the inside of the connecting pipe 5, and filter plates 10 are connected to the left side of the top and the left side of the bottom of the rotating plate 9. The shape of the two filter plates 10 is semicircular, and the two filter plates 10 are in contact with the inner wall of the connecting pipe 5. The rotating assembly is used to drive the rotating plate 9 to rotate, the water blocking assembly is used to block the sewage pipe 6, and the cleaning mechanism is used to clean the filter plate 10.

[0032] like Figure 2 and Figure 3 As shown, the rotating assembly includes a first driving motor 11 and a driving gear 12. The first driving motor 11 is installed on the left support plate 4, and the driving gear 12 is connected to the output shaft of the first driving motor 11. The left side of the bottom of the connecting tube 5 and the bottom of the baffle 7 are both provided with arc holes for the driving gear 12 to pass through. The left end of the rotating shaft of the rotating plate 9 is circumferentially spaced with tooth holes 13, and the tooth holes 13 are meshed with the driving gear 12.

[0033] like Figure 4 As shown, the water blocking assembly includes a connecting block 14, a first sliding rod 15, a water blocking plate 16 and a connecting spring 17. The connecting block 14 is connected to the upper part of the inner wall of the sewage pipe 6. A plurality of fan-shaped holes for sewage to pass through are left between the connecting block 14 and the sewage pipe 6. The middle part of the connecting block 14 is slidably connected to the first sliding rod 15. The lower end of the first sliding rod 15 is connected to the water blocking plate 16. The water blocking plate 16 is circular in shape and contacts and fits with the inner wall of the sewage pipe 6. The connecting spring 17 is wound around the outside of the first sliding rod 15, and the two ends of the connecting spring 17 are respectively connected to the top of the water blocking plate 16 and the bottom of the connecting block 14.

[0034] like Figure 5-Figure 8As shown, the cleaning mechanism includes a support frame 18, a second drive motor 19, a sliding plate 20, a screw rod 21 and a control component. The bottom of the connecting pipe 5 is connected to the support frame 18, the top of the support frame 18 is an open design, and the bottom of the connecting pipe 5 is provided with a strip hole connected to the inside of the support frame 18. The second drive motor 19 is installed on the right support plate 4. The sliding plate 20 is slidably connected in the support frame 18. The upper part of the sliding plate 20 is provided with a water hole 2001. The sliding plate 20 is in contact with the lower part of the inner wall of the connecting pipe 5, and the top of the sliding plate 20 is in contact with the bottom of the fixed plate 8. The support frame 18 is also rotatably connected with a screw rod 21, the screw rod 21 is threadedly connected to the lower part of the sliding plate 20, and the right end of the screw rod 21 is connected to the output shaft of the second drive motor 19. The control component is used for To control the opening and closing of the water hole 2001; the control component includes a connecting plate 22, a second sliding rod 23, a circular plate 24 and a return spring 25. The upper right part of the sliding plate 20 is connected to the connecting plate 22, the connecting plate 22 is located at the right end of the water hole 2001, and the connecting plate 22 is circumferentially spaced with through holes 2201, the through holes 2201 are connected to the water hole 2001, the middle part of the connecting plate 22 is slidably connected to the second sliding rod 23, and the second sliding rod 23 passes through the water hole 2001, the left end of the second sliding rod 23 is connected to the circular plate 24, the circular plate 24 is in contact with the inner wall of the water hole 2001, so that the water hole 2001 can be blocked, the return spring 25 is wrapped around the outside of the second sliding rod 23, and the two ends of the return spring 25 are respectively connected to the right side of the circular plate 24 and the left side of the connecting plate 22.

[0035] Initially, the circular plate 24 blocks the water hole 2001, the upper and lower parts of the connecting pipe 5 are not connected to each other, and the water blocking plate 16 blocks the sewage pipe 6; first, the lower end of the hose 33 is moved to the sewage discharge place, and then the left end of the connecting pipe 5 is connected to the water source. Under the blocking effect of the baffle 7 and the rotating plate 9, the water can only flow to the upper half of the inner side of the connecting pipe 5, that is, the area above the rotating plate 9. Then, the centrifugal pump body 2 is controlled by the controller 3 to start working, and the centrifugal pump body 2 can extract the water inside the connecting pipe 5. At this time, the water inside the connecting pipe 5 will first pass through The filter plate 10 on the upper side can filter water to remove impurities in the water, and then the filtered water will enter the centrifugal pump body 2 and be discharged through the water outlet of the centrifugal pump body 2; when there are more impurities attached to the surface of the upper filter plate 10, the first drive motor 11 can be controlled by the controller 3 to drive the driving gear 12 to rotate, so that the driving gear 12 and the tooth hole 13 can cooperate to drive the rotating plate 9 to rotate 180 degrees, so that the filter plates 10 on the upper and lower sides can be interchanged, so that the other filter plate 10 can be rotated to the connecting pipe 5. The upper side of the interior is used to filter the water inside the connecting pipe 5 through another filter plate 10, and the used filter plate 10 will rotate to the lower side of the interior of the connecting pipe 5, and then the controller 3 will control the first drive motor 11 to stop working; during the rotation of the rotating plate 9, part of the water will fall to the lower side of the interior of the connecting pipe 5. Since the water blocking plate 16 blocks the sewage pipe 6, the water on the lower side of the interior of the connecting pipe 5 cannot be discharged. At this time, the controller 3 will control the second drive motor 19 to drive the screw rod 21 to rotate back and forth, thereby driving the sliding plate 20 along the support The frame 18 moves back and forth quickly. When the sliding plate 20 moves to the left, the sliding plate 20 will squeeze the water on its left side to move quickly to the left, so that the pressure on the left side of the sliding plate 20 increases rapidly, and the water on the left side of the sliding plate 20 will backwash the used filter plate 10. When the pressure on the left side of the sliding plate 20 is higher than the preset value, the first sliding rod 15 and the water blocking plate 16 will be squeezed to move downward, and the connecting spring 17 will be stretched, so that the water blocking plate 16 will no longer block the sewage pipe 6, so that the sewage on the left side of the sliding plate 20 can be discharged through the sewage pipe 6 and the hose 33.When the sliding plate 20 moves to the right, the pressure on the left side of the sliding plate 20 will quickly decrease and recover. At this time, the connecting spring 17 will return to its original state, driving the first sliding rod 15 and the water blocking plate 16 to move upward and reset, so that the water blocking plate 16 blocks the sewage pipe 6 again. At the same time, the water pressure on the right side of the sliding plate 20 will quickly increase, and squeeze the second sliding rod 23 and the circular plate 24 to move to the left. The reset spring 25 is stretched so that the circular plate 24 no longer blocks the water hole 2001. At this time, the water on the right side of the sliding plate 20 can flow to the left side of the sliding plate 20 through the through hole 2201 and the water hole 2001. When the sliding plate When the sliding plate 20 moves to the rightmost side of the support frame 18, the reset spring 25 will return to its original state, driving the second sliding rod 23 and the circular plate 24 to move rightward and reset, so that the circular plate 24 blocks the water hole 2001 again, and then the sliding plate 20 will move leftward, and push the water on its left side to move quickly leftward to backwash the used filter plate 10, and so on, the water entering the centrifugal pump body 2 can be filtered alternately by the two filter plates 10, and the used filter plates 10 can be backwashed and removed automatically, without the need to manually disassemble and remove impurities from the centrifugal pump, saving time and effort, and improving work efficiency. ;

[0036] like Figure 9-11 As shown, it also includes a round rod 26, a connecting seat 27, a backing plate 28, a swing rod 29 and a connecting column 30. The right end of the second sliding rod 23 is connected to the round rod 26, the upper right part of the sliding plate 20 is connected to the connecting seat 27, the connecting seat 27 is located above the connecting plate 22, the middle right part of the fixed plate 8 is connected to the backing plate 28, the connecting seat 27 is rotatably connected to the swing rod 29, the lower part of the swing rod 29 is provided with a guide hole 2901, the round rod 26 is located in the guide hole 2901, the upper part of the swing rod 29 is connected to the connecting column 30, and the connecting column 30 is in contact with the backing plate 28; when the sliding plate 20 moves to the left, the sliding plate 20 can drive the connecting seat 27, the swing rod 29 and the connecting column 30 to move to the left, so that The connecting column 30 is separated from the abutment plate 28. When the sliding plate 20 moves to the right, the sliding plate 20 will drive the connecting column 30 to move to the right and contact the abutment plate 28 first. Then the sliding plate 20 continues to move to the right. The abutment plate 28 cooperates with the connecting column 30 to squeeze the rocker rod 29 to rotate. The rocker rod 29 can pull the round rod 26 to the right through the guide hole 2901. The round rod 26 can drive the second sliding rod 23 and the circular plate 24 to move to the right, so that the circular plate 24 blocks the water hole 2001. In this way, when the sliding plate 20 moves to the rightmost side inside the support frame 18, the water hole 2001 can be forced to be blocked, thereby preventing the circular plate 24 from being unable to close due to excessive water pressure on the right side of the sliding plate 20.

[0037] like Fig.12 and Fig.13As shown, it also includes a first brush plate 31 and a second brush plate 32. The top and bottom of the rotating plate 9 are connected to the first brush plate 31, the first brush plate 31 is located on the left side of the filter plate 10, and the left sides of the two filter plates 10 are connected to the second brush plate 32, the second brush plate 32 is located between the first brush plate 31 and the filter plate 10, and the second brush plate 32 is spaced apart with circular holes 3201, and the circular holes 3201 correspond to the filter holes on the filter plate 10 one by one and are of the same size; when the filter plate 10 is filtering the water entering the centrifugal pump body 2, the first brush plate 31 and the second brush plate 32 are connected to the first brush plate 31 and the second brush plate 32. The brush plate 32 can first intercept impurities in the water, and then the water will flow through the circular hole 3201 to the filter plate 10 for filtration. At this time, the impurities will gradually accumulate on the left side of the filter plate 10, and the cooperation of the first brush plate 31 and the second brush plate 32 can make the impurities adhere to the bristles of the first brush plate 31 and the second brush plate 32, preventing the impurities from leaking from the left end of the connecting pipe 5 back into the water source. When the filter plate 10 is backwashing, the high-speed flowing water can wash away the impurities adhered to the first brush plate 31 and the second brush plate 32, so that the impurities are discharged through the sewage pipe 6.

[0038] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic impurity removal centrifugal pump, comprising a base (1) and a centrifugal pump body (2), wherein the centrifugal pump body (2) is mounted on the top of the base (1), and wherein: The invention also comprises a controller (3), a support plate (4), a connecting pipe (5), a sewage pipe (6), a baffle (7), a fixed plate (8), a rotating plate (9), a filter plate (10), a rotating assembly, a water blocking assembly and a cleaning mechanism. The controller (3) is mounted on the top of the base (1). The support plate (4) is symmetrically connected to the top of the base (1). The connecting pipe (5) is connected to the support plate (4). One end of the connecting pipe (5) is connected to the water inlet of the centrifugal pump body (2) and maintained in communication. The sewage pipe (6) is connected to the water inlet of the centrifugal pump body (2). The baffle plate (7) and the fixed plate (8) are connected to the inner wall of the connecting pipe (5), and a rotating plate (9) is rotatably connected between the baffle plate (7) and the fixed plate (8). Two filter plates (10) are respectively connected to the top and bottom of the rotating plate (9), and the filter plates (10) are in contact with and fit the inner wall of the connecting pipe (5). The rotating assembly is used to drive the rotating plate (9) to rotate, the water blocking assembly is used to block the sewage pipe (6), and the cleaning mechanism is used to clean the filter plates (10).

2. An automatic debris removal centrifugal pump according to claim 1, characterized in that: The rotating assembly comprises a first driving motor (11) and a driving gear (12). The first driving motor (11) is mounted on one of the supporting plates (4). The driving gear (12) is connected to the output shaft of the first driving motor (11). One end of the rotating shaft of the rotating plate (9) is provided with tooth holes (13) spaced apart in the circumferential direction, and the tooth holes (13) are meshed with the driving gear (12).

3. An automatic debris removal centrifugal pump according to claim 2, characterized in that: The water blocking component comprises a connecting block (14), a first sliding rod (15), a water blocking plate (16) and a connecting spring (17); the connecting block (14) is connected to the inner wall of the sewage pipe (6); the first sliding rod (15) is slidably connected to the connecting block (14); the water blocking plate (16) is connected to the lower end of the first sliding rod (15); the water blocking plate (16) is in contact with and fits the inner wall of the sewage pipe (6); and the connecting spring (17) connects the water blocking plate (16) and the connecting block (14).

4. An automatic debris removal centrifugal pump according to claim 3, characterized in that: The cleaning mechanism comprises a support frame (18), a second drive motor (19), a sliding plate (20), a screw rod (21) and a control component. The support frame (18) is connected to the bottom of the connecting pipe (5), the second drive motor (19) is mounted on another support plate (4), the sliding plate (20) is slidably connected to the support frame (18), a water hole (2001) is opened on the sliding plate (20), and the top of the sliding plate (20) is in contact with the bottom of the fixed plate (8), the screw rod (21) is rotatably connected to the support frame (18), the screw rod (21) is threadedly connected to the sliding plate (20), and the end of the screw rod (21) is connected to the output shaft of the second drive motor (19), and the control component is used to control the opening and closing of the water hole (2001).

5. An automatic debris removal centrifugal pump according to claim 4, characterized in that: The control assembly comprises a connecting plate (22), a second sliding rod (23), a circular plate (24) and a return spring (25); the connecting plate (22) is connected to the side of the sliding plate (20), and the connecting plate (22) is provided with through holes (2201) spaced circumferentially; the second sliding rod (23) is slidably connected to the connecting plate (22), and the second sliding rod (23) passes through the water through hole (2001); the circular plate (24) is connected to one end of the second sliding rod (23), and the circular plate (24) blocks the water through hole (2001); and the return spring (25) connects the circular plate (24) and the connecting plate (22).

6. An automatic debris removal centrifugal pump according to claim 5, characterized in that: The invention also comprises a round rod (26), a connecting seat (27), a stop plate (28), a swing rod (29) and a connecting column (30), wherein the round rod (26) is connected to the other end of the second sliding rod (23), the connecting seat (27) is connected to the side of the sliding plate (20), the stop plate (28) is connected to the side of the fixed plate (8), the swing rod (29) is rotatably connected to the connecting seat (27), and a guide hole (2901) is formed at one end of the swing rod (29), the round rod (26) is located in the guide hole (2901), the connecting column (30) is connected to the other end of the swing rod (29), and the connecting column (30) is in contact with the stop plate (28).

7. An automatic debris removal centrifugal pump according to claim 6, characterized in that: It also comprises a first brush plate (31) and a second brush plate (32), wherein the two first brush plates (31) are respectively connected to the top and bottom of the rotating plate (9), and the second brush plate (32) is connected to the side of the filter plate (10), and circular holes (3201) corresponding to the filter holes on the filter plate (10) are spaced apart on the second brush plate (32).

8. An automatic debris removal centrifugal pump according to claim 7, characterized in that: It also includes a hose (33), which is placed on the top of the base (1), and one end of the hose (33) is connected to the lower end of the sewage pipe (6) and maintained in communication.

Images