Anti-blocking self-cleaning diesel engine pump

By introducing a screw and motor-driven soft brush assembly into the diesel engine pump, combined with a rotating rod and push plate, automatic cleaning of the filter screen and discharge of impurities are achieved, solving the problem of diesel engine pump clogging and improving production continuity and work efficiency.

CN224174255UActive Publication Date: 2026-04-28ZIBO BORUI PUMP TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZIBO BORUI PUMP TECH CO LTD
Filing Date
2025-06-13
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing diesel engine pumps are prone to clogging when conveying liquids containing impurities, requiring shutdowns to disassemble and clean the filter screen, increasing labor and time costs and affecting production continuity.

Method used

A clog-resistant, self-cleaning diesel engine pump was designed. It uses a screw and a motor-driven soft brush to automatically clean the filter screen. Combined with a rotating rod and push plate assembly, it realizes automatic cleaning of the filter screen and discharge of impurities. A sealing mechanism ensures the normal operation of the pump.

Benefits of technology

It enables automatic cleaning of the filter screen, reduces manual maintenance costs and time, ensures normal pump flow and working efficiency, and improves the continuity of production operations.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224174255U_ABST
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Abstract

The utility model discloses an anti-blocking self-cleaning type diesel engine pump which comprises a pump body, a filter box is fixedly installed on the outer wall of an inlet pipe of the pump body, a connecting pipe is fixedly installed on the outer wall of the filter box, a filter screen plate is fixedly installed in the filter box, and a screw rod is rotatably installed on the outer wall of the filter box through a movable frame. A motor connected with the screw rod is fixedly installed on the outer wall of the moving frame, a moving plate is installed on the outer wall of the screw rod in a threaded mode, a connecting block is fixedly installed on the inner wall of the moving plate through a connecting mechanism, a banister brush is fixedly installed on the outer wall of the connecting block, and a rotating rod is rotatably installed in the filtering box. Through the arrangement of the screw rod, the motor, the banister brush and other components, the motor drives the screw rod to rotate, the banister brush can be moved when the screw rod rotates, the banister brush can regularly and automatically clean the filter screen plate, cleaned impurities are discharged through the cleaning opening which can be controlled to be opened and closed, the manual maintenance cost and the time cost are reduced, and the operation continuity is improved.
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Description

Technical Field

[0001] This utility model relates to the field of diesel engine pump technology, and in particular to an anti-clogging self-cleaning diesel engine pump. Background Technology

[0002] A diesel engine pump is a water pump powered by a diesel engine. It is mainly used for the transportation and pressurization of liquids. It drives the water pump through a diesel engine, converting mechanical energy into the kinetic energy of the fluid, thereby meeting the fluid transportation needs under different working conditions.

[0003] Currently, diesel engine pumps are widely used in industries, agriculture, and construction. However, they are prone to clogging when conveying liquids containing impurities. In existing technologies, traditional diesel engine pumps require stopping the machine and disassembling the pump body to clean the filter screen, which consumes a lot of manpower and time, increases the cost of use, and greatly affects the continuity of production operations, making them impractical. Therefore, it is necessary to redesign an anti-clogging self-cleaning diesel engine pump to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-clogging self-cleaning diesel engine pump.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A clog-resistant self-cleaning diesel engine pump includes a pump body. A filter box is fixedly installed on the outer wall of the pump body's inlet pipe. A connecting pipe is fixedly installed on the outer wall of the filter box. A filter screen plate is fixedly installed inside the filter box. A screw is rotatably installed on the outer wall of the filter box via a movable frame. A motor connected to the screw is fixedly installed on the outer wall of the movable frame. A movable plate is threaded onto the outer wall of the screw. A connecting block is fixedly installed on the inner wall of the movable plate via a connecting mechanism. A soft brush is fixedly installed on the outer wall of the connecting block. A rotating rod is rotatably installed inside the filter box. Multiple push plates are fixedly installed on the outer wall of the rotating rod via a fixing mechanism. A cleaning opening is provided on the outer wall of the filter box. A fixing plate is fixedly installed on the outer wall of the filter box. A connecting block is fixedly installed on the bottom wall of the fixing plate via a telescopic mechanism. A sealing plate is fixedly installed on the bottom wall of the connecting block via a connecting mechanism. Reinforcing plates that cooperate with the filter box are fixedly installed on both outer walls of the movable frame.

[0007] Preferably, the connecting mechanism includes a connecting rod fixedly installed on the inner wall of the movable plate, and the end of the connecting rod is fixedly connected to the outer wall of the connecting block.

[0008] Preferably, the fixing mechanism includes a fixing sleeve fixedly installed on the outer wall of the rotating rod, and each push plate is fixedly installed on the outer wall of the fixing sleeve.

[0009] Preferably, the telescopic mechanism includes a cylinder fixedly installed on the bottom wall of the fixed plate, and the telescopic end of the cylinder is fixedly connected to the upper end face of the connecting block.

[0010] Preferably, the connecting mechanism includes a connecting rod fixedly installed on the bottom wall of the connecting block, and the end of the connecting rod is fixedly connected to the outer wall of the sealing plate.

[0011] Preferably, a sealing gasket that mates with the cleaning opening is fixedly installed on the inner wall of the sealing plate, and the sealing gasket is made of rubber.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up components such as a screw, motor and soft brush, the motor drives the screw to rotate, and the screw can move the soft brush. The soft brush can automatically clean the filter screen plate periodically. The cleaned impurities are discharged through the controllable opening and closing cleaning opening, reducing manual maintenance costs and time costs, and improving the continuity of operation.

[0014] 2. By setting up components such as a rotating rod, a fixed sleeve, and a push plate, the rotating rod drives the push plate to rotate through the cooperation of the fixed sleeve, which can quickly push the fluid in the filter box, ensuring smooth liquid flow in the filter box, while maintaining the normal flow rate and working efficiency of the pump. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the anti-clogging self-cleaning diesel engine pump proposed in this utility model;

[0016] Figure 2 This is a top view of the anti-clogging self-cleaning diesel engine pump proposed in this utility model.

[0017] Figure 3 for Figure 1 A schematic diagram of the vertical section structure;

[0018] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram.

[0020] In the diagram: 1. Pump body, 2. Filter box, 3. Connecting pipe, 4. Filter screen plate, 5. Moving frame, 6. Screw, 7. Motor, 8. Moving plate, 9. Connecting rod, 10. Connecting block, 11. Soft brush, 12. Rotating rod, 13. Fixed sleeve, 14. Push plate, 15. Fixed plate, 16. Cylinder, 17. Connecting block, 18. Connecting rod, 19. Sealing plate, 20. Sealing gasket, 21. Reinforcing plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A clog-resistant self-cleaning diesel engine pump includes a pump body 1. A filter box 2 is fixedly installed on the outer wall of the inlet pipe of the pump body 1. A connecting pipe 3 is fixedly installed on the outer wall of the filter box 2. A filter screen plate 4 is fixedly installed inside the filter box 2. A screw 6 is rotatably installed on the outer wall of the filter box 2 via a movable frame 5. A motor 7 connected to the screw 6 is fixedly installed on the outer wall of the movable frame 5. A movable plate 8 is threadedly installed on the outer wall of the screw 6. A connecting block 10 is fixedly installed on the inner wall of the movable plate 8 via a connecting mechanism. The connecting mechanism includes a connecting rod 9 fixedly installed on the inner wall of the movable plate 8. The end of the connecting rod 9 is fixedly connected to the outer wall of the connecting block 10. A soft brush 11 is fixedly installed on the outer wall of the connecting block 10.

[0023] Inside the filter box 2, a rotating rod 12 is rotatably installed. Multiple push plates 14 are fixedly installed on the outer wall of the rotating rod 12 by a fixing mechanism. The fixing mechanism includes a fixing sleeve 13 fixedly installed on the outer wall of the rotating rod 12. Each push plate 14 is fixedly installed on the outer wall of the fixing sleeve 13. A cleaning opening is provided on the outer wall of the filter box 2. A fixing plate 15 is fixedly installed on the outer wall of the filter box 2. A connecting block 17 is fixedly installed on the bottom wall of the fixing plate 15 by a telescopic mechanism. The telescopic mechanism includes a cylinder 16 fixedly installed on the bottom wall of the fixing plate 15. The telescopic end of the cylinder 16 is fixedly connected to the upper end face of the connecting block 17. By precisely controlling the telescopic extension of the cylinder 16, the connecting block 17 can be moved up and down, thereby realizing the opening and closing of the cleaning opening by the sealing plate 19.

[0024] A sealing plate 19 is fixedly installed on the bottom wall of the connecting block 17 via a connecting mechanism. The connecting mechanism includes a connecting rod 18 fixedly installed on the bottom wall of the connecting block 17. The end of the connecting rod 18 is fixedly connected to the outer wall of the sealing plate 19. A sealing gasket 20 that mates with the cleaning opening is fixedly installed on the inner wall of the sealing plate 19. The sealing gasket 20 is made of rubber, which has good elasticity and sealing properties. The shape and size of the sealing gasket 20 are precisely matched with the cleaning opening. When the sealing plate 19 closes the cleaning opening, the sealing gasket 20 can tightly fit the edge of the cleaning opening to form a reliable seal and prevent liquid leakage. Reinforcing plates 21 that mate with the filter box 2 are fixedly installed on both outer walls of the moving frame 5. The reinforcing plates 21 adopt a triangular or trapezoidal structure design and are fixedly connected to the moving frame 5 and the filter box 2 by welding. This can effectively enhance the structural strength and stability of the connection between the moving frame 5 and the filter box 2, ensuring that the entire device will not shake or loosen during operation.

[0025] When using this utility model, the filter box 2 is tightly fixed on the outer wall of the inlet pipe of the pump body 1 to ensure that there are no gaps or leaks at the connection. Then, it is connected to the external liquid source through the connecting pipe 3. After the diesel engine pump is started, the liquid containing impurities flows into the filter box 2 through the connecting pipe 3. During the liquid flow, the filter screen 4 effectively intercepts various large particles of impurities in the liquid. Only the filtered clean liquid can pass through the filter screen 4 and enter the pump body 1. The impeller in the pump body 1 pressurizes and delivers it to the target position to complete the liquid delivery operation.

[0026] During the operation of the diesel pump, the control system monitors relevant parameters in real time. When the preset cleaning cycle is reached, or when abnormal pressure is detected before and after the filter screen plate 4, indicating a high degree of filter screen blockage, the motor 7 starts automatically. The motor 7 transmits power to the screw 6, driving the screw 6 to rotate. Since the moving plate 8 and the screw 6 are connected by threads, when the screw 6 rotates, the moving plate 8 will move linearly back and forth along the axis of the screw 6. The moving plate 8 drives the connecting block 10 and the soft brush 11 to move synchronously. The soft brush 11 cleans back and forth against the surface of the filter screen plate 4, thoroughly brushing off the impurities attached to the filter screen plate 4, restoring the permeability of the filter screen plate 4, and avoiding a decrease in liquid flow due to filter screen blockage.

[0027] Meanwhile, the fluid continuously pounds the push plate 14, thereby driving the rotating rod 12 to rotate. The rotating rod 12 drives the push plate 14 to rotate at the bottom of the filter box 2 through the fixed sleeve 13. The surface of the push plate 14 maintains a suitable distance from the bottom of the inner wall of the filter box 2. During the rotation, it can continuously gather the impurities settled at the bottom of the filter box 2 and gradually push them towards the cleaning opening, preventing the accumulation of impurities from affecting the filtration effect. When a large amount of impurities accumulate in the filter box 2 and needs to be discharged, the control system sends a command to the cylinder 16. The piston of the cylinder 16 retracts, driving the connecting block 17 to move upwards. The connecting block 17 pulls the sealing plate 19 upward synchronously through the connecting rod 18, causing the sealing plate 19 to disengage from the cleaning opening and open the impurity discharge channel. At this time, under the pushing action of the continuously rotating push plate 14, the impurities in the filter box 2 are quickly discharged from the cleaning opening to the pre-connected impurity discharge pipe or collection container. After the impurities are completely discharged, the control system controls the piston of the cylinder 16 to extend, and the sealing plate 19 descends back to the cleaning opening. Under the action of the sealing gasket 20, a tight seal is formed to prevent liquid leakage and ensure that the diesel engine pump can continue to operate safely and stably.

[0028] Throughout the entire operation, the reinforcing plates 21 on both sides of the movable frame 5 adopt a robust structural design and are connected to the filter box 2 and the movable frame 5 through a reliable connection method. This effectively enhances the connection strength and overall rigidity between the movable frame 5 and the filter box 2. Even if vibration occurs during equipment operation, it can ensure stable cooperation of each component without shaking or loosening, thereby reliably realizing the anti-clogging and self-cleaning functions of the diesel pump.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A clog-resistant self-cleaning diesel engine pump, comprising a pump body (1), characterized in that, A filter box (2) is fixedly installed on the outer wall of the inlet pipe of the pump body (1). A connecting pipe (3) is fixedly installed on the outer wall of the filter box (2). A filter screen plate (4) is fixedly installed inside the filter box (2). A screw (6) is rotatably installed on the outer wall of the filter box (2) through a moving frame (5). A motor (7) connected to the screw (6) is fixedly installed on the outer wall of the moving frame (5). A moving plate (8) is threaded on the outer wall of the screw (6). A connecting block (10) is fixedly installed on the inner wall of the moving plate (8) through a connecting mechanism. A soft brush is fixedly installed on the outer wall of the connecting block (10). (11) A rotating rod (12) is rotatably installed inside the filter box (2). Multiple push plates (14) are fixedly installed on the outer wall of the rotating rod (12) through a fixing mechanism. A cleaning opening is provided on the outer wall of the filter box (2). A fixing plate (15) is fixedly installed on the outer wall of the filter box (2). A connecting block (17) is fixedly installed on the bottom wall of the fixing plate (15) through a telescopic mechanism. A sealing plate (19) is fixedly installed on the bottom wall of the connecting block (17) through a connecting mechanism. Reinforcing plates (21) that cooperate with the filter box (2) are fixedly installed on both sides of the outer wall of the moving frame (5).

2. The anti-clogging self-cleaning diesel engine pump according to claim 1, characterized in that, The connecting mechanism includes a connecting rod (9) fixedly installed on the inner wall of the movable plate (8), and the end of the connecting rod (9) is fixedly connected to the outer wall of the connecting block (10).

3. The anti-clogging self-cleaning diesel engine pump according to claim 2, characterized in that, The fixing mechanism includes a fixing sleeve (13) fixedly installed on the outer wall of the rotating rod (12), and each of the push plates (14) is fixedly installed on the outer wall of the fixing sleeve (13).

4. The anti-clogging self-cleaning diesel engine pump according to claim 3, characterized in that, The telescopic mechanism includes a cylinder (16) fixedly installed on the bottom wall of the fixed plate (15), and the telescopic end of the cylinder (16) is fixedly connected to the upper end face of the connecting block (17).

5. The anti-clogging self-cleaning diesel engine pump according to claim 4, characterized in that, The connecting mechanism includes a connecting rod (18) fixedly installed on the bottom wall of the connecting block (17), and the end of the connecting rod (18) is fixedly connected to the outer wall of the sealing plate (19).

6. The anti-clogging self-cleaning diesel engine pump according to claim 5, characterized in that, The inner wall of the sealing plate (19) is fixedly installed with a sealing gasket (20) that matches the cleaning opening. The sealing gasket (20) is made of rubber.