Buffer structure applied to integrated sewage lifting pump station

By designing detachable buffer components and anti-clogging mechanisms, the problems of difficult maintenance and impurity blockage in the buffer structure of sewage lift pump stations have been solved, achieving smooth sewage flow and efficient removal of impurities.

CN224379085UActive Publication Date: 2026-06-19CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD
Filing Date
2025-07-03
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing sewage lifting pump station's buffer structure is fixed inside the cylinder, which is difficult to maintain and has a single function, making it unable to effectively filter impurities and causing frequent blockage problems.

Method used

A detachable buffer assembly was designed, combined with an anti-clogging mechanism, to clean impurities inside the filter element by vertical and horizontal rotation. The assembly includes a guide rod, a buffer spring, a drive motor, and a gear meshing structure, achieving effective cleaning and buffering of impurities.

Benefits of technology

This design enables easy disassembly of the buffer structure and filtration of impurities, reduces clogging issues, ensures normal wastewater flow, and improves the practicality of the buffer structure.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model discloses a buffer structure for an integrated sewage lifting pump station, belonging to the field of sewage treatment technology. The buffer structure includes a cylindrical body with a sealing cap fixedly connected to the top. An inlet pipe is fixedly connected to the lower side of one side of the cylindrical body, and a pair of lifting pipes are fixedly connected to the upper side of the other side. A sleeve is fixedly connected to one side of the inside of the cylindrical body, and a pair of submersible pumps are fixedly connected to the bottom of the inside of the cylindrical body. This design features a easily disassembled buffer assembly, which serves both as a buffer and for filtering impurities, facilitating the centralized cleaning of impurities in the sewage and improving the practicality of the buffer structure. Furthermore, an anti-clogging component is included, which effectively cleans and agitates the impurities accumulated inside the filter element through vertical and horizontal rotation, reducing clogging and ensuring normal sewage flow.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to a buffer structure applied to an integrated wastewater lifting pump station. Background Technology

[0002] An integrated sewage lifting pump station is a highly integrated sewage treatment and transportation equipment. It integrates sewage collection, lifting, and pretreatment functions into a prefabricated, sealed cylinder. It is mainly used to solve the sewage discharge problem in low-lying areas. By using a water pump, the sewage in the low-lying area is lifted to a higher pipe network or sewage treatment plant, which facilitates the normal operation of the sewage treatment system.

[0003] Based on the above, the inventors have discovered that when existing booster pump stations are in operation, sewage enters the pump station cylinder through pipes. In order to reduce the impact force of the sewage, a buffer structure is generally installed at the sewage inlet to extend the service life of the pump station. However, the buffer structure is fixed inside the cylinder, making it difficult to maintain and inspect. At the same time, the function of the buffer structure is relatively simple, only playing a single buffering role. Therefore, in view of this, the inventors have researched and improved the existing structure to provide a buffer structure for integrated sewage booster pump stations, aiming to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a buffer structure for an integrated sewage lifting pump station. This solution features a buffer component that is easy to disassemble, which can not only serve as a buffer but also filter impurities, facilitating the centralized cleaning of impurities in sewage and improving the practicality of the buffer structure. Furthermore, an anti-clogging component is included, which effectively cleans and agitates the impurities accumulated inside the filter element through a combination of vertical and horizontal rotation, reducing the occurrence of clogging problems and ensuring the normal flow of sewage.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A buffer structure for an integrated sewage lifting pump station includes a cylinder, a sealing cover fixedly connected to the top, an inlet pipe fixedly connected to the lower side of one side of the cylinder, and a pair of lifting pipes fixedly connected to the upper side of the other side of the cylinder. A pipe sleeve is fixedly connected to one side of the inside of the cylinder, and a pair of submersible pumps are fixedly connected to the bottom of the inside of the cylinder.

[0009] A drive motor is fixedly connected to the top of the sealing cover, and a limit plate is fixedly connected to the bottom of the sealing cover. An anti-blocking mechanism is provided on the inner side of the connection between the sealing cover and the limit plate. A buffer tube is fixedly connected to the bottom of the limit plate. A set of guide rods is fixedly connected to the top of the buffer tube, and a filter screen is fixedly connected to the bottom of the buffer tube.

[0010] Furthermore, the anti-clogging mechanism includes a connecting rod, the bottom end of which is movably connected to a rotating shaft, a pair of cleaning plates are fixedly connected to the outside of the rotating shaft, and toothed rings are fixedly connected to both ends of the rotating shaft.

[0011] Furthermore, the inlet pipe is fixedly connected to the sleeve, and the lift pipe is fixedly connected to the submersible pump.

[0012] Furthermore, the buffer tube is located inside the sleeve, the guide rod passes through the limiting plate, and the guide rod is slidably connected to the limiting plate.

[0013] Furthermore, a buffer spring is sleeved on the outer side of the upper end of the guide rod, and the two ends of the buffer spring are fixedly connected to the top surface of the guide rod and the limiting plate, respectively.

[0014] Furthermore, the connecting rod is located on the inner side of the connection between the sealing cover and the limiting plate, and the connecting rod is movably connected to the connection between the sealing cover and the limiting plate. The output end of the drive motor and the top end of the connecting rod are both fixedly connected with bevel teeth, and the two bevel teeth are meshed together.

[0015] Furthermore, a toothed ring is engaged with the toothed ring below, and the toothed ring is fixedly connected to the lower part of the buffer tube, and the cleaning plate is adapted to the filter screen.

[0016] 3. Beneficial Effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] (1) In this scheme, the sealing cover is installed on the top of the cylinder by bolts, and the buffer pipe enters the inside of the pipe sleeve. The buffer pipe plays the role of reducing the impact of sewage. At the same time, the filter screen filters impurities. After the sewage lifting work is completed, the sealing cover is removed and the buffer pipe is taken out from the inside of the pipe sleeve. The impurities accumulated inside the filter screen can be cleaned. Compared with the existing technology, the buffer component that is easy to disassemble can not only play a buffering role, but also filter impurities. It is convenient to clean the impurities in the sewage in a concentrated manner, which improves the practicality of the buffer structure.

[0019] (2) By setting an anti-clogging mechanism, the drive motor is started, and the connecting rod rotates under the cooperation of two bevel teeth. The connecting rod drives the rotating shaft to rotate along the vertical axis. At the same time, the rotating shaft drives the toothed ring to rotate. With the meshing toothed ring, the rotating shaft rotates horizontally, thereby enabling the cleaning plate to clean the impurities accumulated inside the filter screen. Compared with the existing technology, the anti-clogging component is set up. By using vertical rotation in combination with horizontal rotation, the impurities accumulated inside the filter element are effectively cleaned and stirred, reducing the occurrence of clogging problems and ensuring the normal flow of sewage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the cylinder of this utility model;

[0022] Figure 3 This is a schematic diagram of the tube sleeve of this utility model;

[0023] Figure 4 This is a structural exploded view of the buffer tube and filter screen of this utility model;

[0024] Figure 5 This is a schematic diagram of the anti-blocking mechanism of this utility model.

[0025] The following are the labels in the diagram: 1. Cylinder; 2. Inlet pipe; 3. Lifting pipe; 4. Sealing cap; 5. Pipe sleeve; 6. Limiting plate; 7. Anti-clogging mechanism; 8. Buffer pipe; 9. Submersible pump; 10. Guide rod; 11. Filter screen; 12. Buffer spring; 13. Drive motor; 14. Connecting rod; 15. Rotating shaft; 16. Cleaning plate; 17. Gear ring; 18. Gear ring; 19. Conical tooth. Detailed Implementation

[0026] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Example:

[0028] Please see Figure 1-5A buffer structure for an integrated sewage lifting pump station includes a cylinder 1, a sealing cover 4 fixedly connected to the top, an inlet pipe 2 fixedly connected to the lower side of one side of the cylinder 1, and a pair of lifting pipes 3 fixedly connected to the upper side of the other side of the cylinder 1. A pipe sleeve 5 is fixedly connected to one side of the inside of the cylinder 1, and a pair of submersible pumps 9 are fixedly connected to the bottom of the inside of the cylinder 1.

[0029] A drive motor 13 is fixedly connected to the top of the sealing cover 4, and a limit plate 6 is fixedly connected to the bottom of the sealing cover 4. An anti-blocking mechanism 7 is provided on the inner side of the connection between the sealing cover 4 and the limit plate 6. A buffer tube 8 is fixedly connected to the bottom of the limit plate 6. A set of guide rods 10 is fixedly connected to the top of the buffer tube 8, and a filter screen 11 is fixedly connected to the bottom of the buffer tube 8. When the sealing cover 4 is installed on the top of the cylinder 1 with bolts, the buffer tube 8 enters the inside of the sleeve 5.

[0030] See Figure 5 The anti-clogging mechanism 7 includes a connecting rod 14, with a rotating shaft 15 movably connected to the bottom end of the connecting rod 14. A pair of cleaning plates 16 are fixedly connected to the outside of the rotating shaft 15, and toothed rings 17 are fixedly connected to both ends of the rotating shaft 15. In order to clean and stir the impurities accumulated inside the filter element and reduce the occurrence of clogging problems, the anti-clogging mechanism 7 is provided.

[0031] See Figure 2 The inlet pipe 2 is fixedly connected to the sleeve 5, and the lift pipe 3 is fixedly connected to the submersible pump 9. Sewage enters the buffer pipe 8 through the inlet pipe 2 and is filtered by the filter screen 11. Then the sewage enters the lower part of the cylinder 1. The submersible pump 9 is started so that the filtered sewage is discharged through the lift pipe 3, thus completing the sewage lifting work.

[0032] See Figure 4 The buffer pipe 8 is located inside the sleeve 5. The guide rod 10 passes through the limiting plate 6 and is slidably connected to the limiting plate 6. After the sewage enters the buffer pipe 8, it impacts the buffer pipe 8 and moves it downward, which in turn moves the guide rod 10.

[0033] See Figure 4 A buffer spring 12 is sleeved on the outer side of the upper end of the guide rod 10. The two ends of the buffer spring 12 are fixedly connected to the top surface of the guide rod 10 and the limiting plate 6, respectively. The movement of the guide rod 10 compresses the buffer spring 12, causing it to deform. Then, under the action of the buffer spring 12, the buffer tube 8 is driven to reset.

[0034] See Figure 2The connecting rod 14 is located on the inner side of the connection between the sealing cover 4 and the limiting plate 6, and the connecting rod 14 is movably connected to the connection between the sealing cover 4 and the limiting plate 6. The output end of the drive motor 13 and the top end of the connecting rod 14 are both fixedly connected with bevel teeth 19. The two bevel teeth 19 are meshed together. When the drive motor 13 is started, the connecting rod 14 rotates under the cooperation of the two bevel teeth 19.

[0035] See Figure 5 A toothed ring 18 is engaged below the toothed ring 17. The toothed ring 18 is fixedly connected to the lower part of the buffer tube 8. The cleaning plate 16 is adapted to the filter screen 11. The connecting rod 14 drives the rotating shaft 15 to rotate along the vertical axis. At the same time, the rotating shaft 15 drives the toothed ring 17 to rotate. In conjunction with the engaged toothed ring 18, the rotating shaft 15 rotates horizontally, thereby enabling the cleaning plate 16 to clean the impurities accumulated inside the filter screen 11.

[0036] In use: The sealing cap 4 is bolted to the top of the cylinder 1, then the buffer pipe 8 enters the sleeve 5. Sewage enters the buffer pipe 8 through the inlet pipe 2 and is filtered by the filter screen 11. Afterward, the sewage enters the lower part of the cylinder 1. The submersible pump 9 is started, causing the filtered sewage to be discharged through the lift pipe 3, completing the sewage lifting operation. Once the sewage enters the buffer pipe 8, it impacts the buffer pipe 8, causing it to move downwards and move the guide rod 10. This, combined with the buffer spring 12, provides a buffering effect. Simultaneously, the drive motor 13 is started, and the two cones... With the cooperation of gear 19, connecting rod 14 rotates, driving shaft 15 to rotate along the vertical axis. At the same time, shaft 15 drives gear ring 17 to rotate, cooperating with gear ring 18. Shaft 15 rotates horizontally, thereby causing cleaning plate 16 to clean the impurities accumulated inside filter screen 11, reducing the problem of filter screen 11 clogging and ensuring normal filtration and flow of sewage. After the lifting work is completed, seal cover 4 is removed and buffer tube 8 is taken out from inside tube sleeve 5 to clean the impurities accumulated inside filter screen 11.

[0037] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A buffer structure for an integrated sewage lifting pump station, comprising a cylindrical body (1), a sealing cap (4) fixedly connected to the top of the cylindrical body (1), an inlet pipe (2) fixedly connected to the lower side of one side of the cylindrical body (1), and a pair of lifting pipes (3) fixedly connected to the upper side of the other side of the cylindrical body (1), characterized in that: The inner side of the cylinder (1) is fixedly connected to a sleeve (5), and a pair of submersible pumps (9) are fixedly connected to the bottom of the inner side of the cylinder (1). The top of the sealing cover (4) is fixedly connected to a drive motor (13), and the bottom of the sealing cover (4) is fixedly connected to a limiting plate (6). An anti-blocking mechanism (7) is provided on the inner side of the connection between the sealing cover (4) and the limiting plate (6). A buffer tube (8) is fixedly connected to the bottom of the limiting plate (6). A set of guide rods (10) is fixedly connected to the top of the buffer tube (8), and a filter screen (11) is fixedly connected to the bottom of the buffer tube (8).

2. The buffer structure applied to the integrated sewage lifting pump station according to claim 1, characterized in that: The anti-blocking mechanism (7) includes a connecting rod (14), the bottom end of which is movably connected to a rotating shaft (15), a pair of cleaning plates (16) are fixedly connected to the outside of the rotating shaft (15), and toothed rings (17) are fixedly connected to both ends of the rotating shaft (15).

3. The buffer structure applied to the integrated sewage lifting pump station according to claim 1, characterized in that: The inlet pipe (2) is fixedly connected to the sleeve (5), and the lift pipe (3) is fixedly connected to the submersible pump (9).

4. The buffer structure applied to the integrated sewage lifting pump station according to claim 1, characterized in that: The buffer tube (8) is located inside the sleeve (5), the guide rod (10) passes through the limiting plate (6), and the guide rod (10) is slidably connected to the limiting plate (6).

5. The buffer structure applied to the integrated sewage lifting pump station according to claim 1, characterized in that: A buffer spring (12) is sleeved on the outer side of the upper end of the guide rod (10), and the two ends of the buffer spring (12) are fixedly connected to the top surface of the guide rod (10) and the limiting plate (6), respectively.

6. The buffer structure applied to the integrated sewage lifting pump station according to claim 2, characterized in that: The connecting rod (14) is located on the inner side of the connection between the sealing cover (4) and the limiting plate (6), and the connecting rod (14) is movably connected to the connection between the sealing cover (4) and the limiting plate (6). The output end of the drive motor (13) and the top end of the connecting rod (14) are both fixedly connected with bevel teeth (19), and the two bevel teeth (19) are meshed together.

7. The buffer structure applied to the integrated sewage lifting pump station according to claim 2, characterized in that: The toothed ring (17) is engaged with a toothed ring (18) below it. The toothed ring (18) is fixedly connected to the lower part of the buffer tube (8). The cleaning plate (16) is adapted to the filter screen (11).