Preposed filtering device of efficient self-cleaning water pump

Abstract

The utility model belongs to the technical field of water pump pre-filtering, particularly relates to a high-efficiency self-cleaning water pump pre-filtering device, and aims to solve the problem that a water pump pre-filtering device usually uses a filter screen to filter solid particles so as to prevent solid impurities from entering a water pump to cause blockage of the water pump. In order to solve the problem that the filtering effect of the preposed filtering device of the water pump can be ensured only when a built-in filter screen needs to be frequently replaced, the utility model provides the following scheme: the preposed filtering device comprises a filtering tank body, a tank cover is arranged at a tank opening in the top of the filtering tank body, a filtering cylinder is fixedly arranged in the filtering tank body, and the top of the filtering cylinder is arranged in an unclosed manner and tightly abuts against the bottom of the tank cover. When the self-cleaning filter cartridge is used, the self-cleaning function of the filter cartridge is realized by arranging the self-cleaning assembly, the filtering effect can be kept without frequently replacing the filter cartridge, and meanwhile, the discharge efficiency of sediments is further improved by arranging the blow-off pipe and the push plate, so that the filtering efficiency and the operation stability of the whole device are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump pre-filtering, in particular to a high-efficiency self-cleaning water pump pre-filtering device. Background Art

[0002] The water pump pre-filter device is a device used to protect water pumps and water treatment systems. It can effectively remove solid particles, impurities and suspended matter in the water and extend the service life of water pumps and downstream equipment.

[0003] At present, the pre-filter device of the water pump usually uses a filter to filter solid particles, so as to prevent solid impurities from entering the water pump and causing blockage thereof, but the built-in filter needs to be replaced frequently to ensure the filtering effect of the pre-filter device of the water pump.

[0004] In view of the above problems, the utility model document proposes a high-efficiency self-cleaning water pump pre-filter device. Utility Model Content

[0005] The utility model provides a high-efficiency self-cleaning water pump pre-filter device, which solves the problem that the water pump pre-filter device in the prior art usually uses a filter screen to filter solid particles, thereby preventing solid impurities from entering the water pump and causing the pump to be blocked, but the built-in filter screen needs to be replaced frequently to ensure the filtering effect of the water pump pre-filter device.

[0006] The utility model provides the following technical solutions:

[0007] High-efficiency self-cleaning water pump pre-filter device, including:

[0008] A filter tank body, wherein a tank cover is provided at the tank opening on the top of the filter tank body, a filter cartridge is fixedly provided in the filter tank body, the top of the filter cartridge is not closed and is tightly against the bottom of the tank cover, the top of the tank cover is connected with a water pipe for introducing sewage into the filter cartridge, the outer wall of the filter tank body is connected with a drain pipe, and the other end of the drain pipe is fixedly provided with a connection flange for connecting with the input end of a water pump;

[0009] The self-cleaning component is installed in the filter cartridge to clean the residue on the filter holes of the filter cartridge, eliminating the need to frequently replace the filter cartridge to ensure the filtering effect.

[0010] In one possible design, the self-cleaning component includes a transmission rod rotatably mounted at the center of the bottom of the tank cover, a driving motor for driving the transmission rod to rotate is fixedly mounted on the top of the tank cover, two scraping strips are symmetrically fixedly arranged on the transmission rod, the scraping strips are arranged to fit the inner wall of the filter cartridge, and bristles are fixedly arranged on the surface of the scraping strips to probe into the filter holes of the filter cartridge.

[0011] In a possible design, the bottom of the filter tank body is connected to a drain pipe, the top of the drain pipe is arranged to penetrate the bottom of the inner wall of the filter cartridge, and a drain valve is arranged on the drain pipe.

[0012] In a possible design, a push plate for pushing sediments toward a sewage pipe for discharge is fixedly provided on the transmission rod, and the bottom of the push plate is arranged to fit the bottom of the inner wall of the filter cartridge.

[0013] In a possible design, the filter tank body and the tank cover are fixed by a plurality of buckles so that the tank cover can be opened and closed.

[0014] In a possible design, a sealing ring is fixedly provided at the bottom of the tank cover to improve the sealing performance with the filter tank body.

[0015] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0016] The utility model has the following beneficial effects:

[0017] The utility model realizes the self-cleaning function of the filter cartridge by arranging a self-cleaning component, and the filtering effect can be maintained without the need for frequent replacement of the filter cartridge, thereby reducing maintenance costs and operating difficulty. At the same time, through the arrangement of the sewage pipe and the push plate, the discharge efficiency of the sediment is further improved, and the sediment can be conveniently pushed to the sewage pipe for discharge, preventing the sediment from accumulating and affecting the filtering effect, thereby ensuring the filtering efficiency and operating stability of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a high-efficiency self-cleaning water pump pre-filter device provided by an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the internal structure of the filter tank of the high-efficiency self-cleaning water pump pre-filter device provided by the embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the internal structure of a filter cartridge of a high-efficiency self-cleaning water pump pre-filter device provided by an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of the structure of a self-cleaning component of a high-efficiency self-cleaning water pump pre-filter device provided in an embodiment of the utility model.

[0022] Figure numerals: 1. filter tank body; 2. tank cover; 3. buckle; 4. filter cartridge; 5. water pipe; 6. drain pipe; 7. connecting flange; 8. transmission rod; 9. driving motor; 10. scraper bar; 11. drain pipe; 12. drain valve; 13. push plate; 14. sealing ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0026] Embodiment 1

[0027] Please refer to Figure 1-4 , high-efficiency self-cleaning pre-filter device, including:

[0028] A filter tank body 1 is provided with a tank cover 2 at the tank opening on the top of the filter tank body 1. A filter cartridge 4 is fixedly provided inside the filter tank body 1. The top of the filter cartridge 4 is not closed and the top thereof is tightly against the bottom of the tank cover 2. A water delivery pipe 5 is connected to the top of the tank cover 2 to introduce the sewage to be filtered into the filter cartridge 4. The clean water filtered by the filter cartridge 4 is discharged through a drain pipe 6 on the outer wall of the filter tank body 1. A connecting flange 7 is fixedly provided at the other end of the drain pipe 6 to facilitate connection with the input end of the water pump.

[0029] A self-cleaning component is provided in the filter cartridge 4 and is used to clean the residue on the filter holes of the filter cartridge 4. There is no need to frequently replace the filter cartridge 4 to ensure the filtering effect. The self-cleaning component includes a transmission rod 8 rotatably installed at the center of the bottom of the tank cover 2, and a driving motor 9 is fixedly installed at the top of the tank cover 2. Its output shaft passes through the bottom of the tank cover 2 and is fixedly connected to the top of the transmission rod 8, and is used to drive the transmission rod 8 to rotate. On the transmission rod 8, two scraping strips 10 are symmetrically fixedly provided. The scraping strips 10 are arranged to fit the inner wall of the filter cartridge 4, and bristles that penetrate into the filter holes of the filter cartridge 4 are also fixedly provided on the surface of the scraping strips. When the driving motor 9 is working, the transmission rod 8 drives the scraping strips 10 to rotate, and the bristles on the scraping strips 10 can clean the residue on the filter holes of the filter cartridge 4, thereby maintaining the filtering effect of the filter cartridge 4, and there is no need to frequently replace the filter cartridge 4;

[0030] In order to conveniently discharge the sediment generated during the filtration process, a drain pipe 11 is connected to the bottom of the filter tank body 1. The top of the drain pipe 11 is set through the bottom of the inner wall of the filter cartridge 4. A drain valve 12 is set on it. When it is necessary to discharge the sediment, just open the drain valve 12 and the sediment can be discharged from the drain pipe 11.

[0031] In order to further improve the discharge efficiency of sediment, a push plate 13 is fixedly provided on the transmission rod 8, and the bottom of the push plate 13 is arranged in contact with the bottom of the inner wall of the filter cartridge 4. When the transmission rod 8 rotates, the push plate 13 can push the sediment to the drain pipe 11, thereby improving the discharge efficiency of sediment.

[0032] The present application can be used for water pump pre-filtration, and can also be used in other fields applicable to the present application.

[0033] Embodiment 2

[0034] Improvements based on Example 1:

[0035] High-efficiency self-cleaning water pump pre-filter device, which is used in the field of water pump pre-filter;

[0036] Please refer to Figure 1-2 The filter tank body 1 and the tank cover 2 are fixed by multiple buckles 3 to facilitate the opening and closing operation of the tank cover 2. A sealing ring 14 is fixedly provided at the bottom of the tank cover 2 to improve the sealing between the filter tank body 1 and prevent sewage leakage during the filtration process.

[0037] However, as is well known to those skilled in the art, the working principle and wiring method of the drive motor 9 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selections according to their needs or convenience.

[0038] The working principle and usage process of this technical solution are as follows:

[0039] When in use, the user first installs the high-efficiency self-cleaning water pump pre-filter device at a suitable position at the front end of the water pump, ensures that the connecting flange 7 is tightly connected to the water pump input end, fixes the tank cover 2 to the filter tank body 1 through the buckle 3, ensures that the sealing ring 14 at the bottom of the tank cover 2 is tightly fitted with the top of the filter tank body 1 to improve the sealing performance, and the user introduces the sewage to be filtered into the filter cartridge 4 through the water pipe 5, and the sewage is filtered through the filter holes in the filter cartridge 4, and the clean water flows into the water pump through the drain pipe 6;

[0040] When the residue on the filter holes of the filter cartridge 4 accumulates to a certain extent, the user starts the drive motor 9, which drives the transmission rod 8 to rotate, and the scraper bar 10 on the transmission rod 8 rotates accordingly. The bristles on the surface of the scraper bar 10 penetrate into the filter holes of the filter cartridge 4 to remove the residue on the filter holes. At the same time, the push plate 13 on the transmission rod 8 pushes the sediment deposited at the bottom of the filter cartridge 4 to the drain pipe 11. The user opens the drain valve 12, and the sediment is discharged through the drain pipe 11.

[0041] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. High-efficiency self-cleaning water pump pre-filter device, characterized by: include: A filter tank body (1), wherein a tank cover (2) is provided at the tank opening on the top of the filter tank body (1), a filter cartridge (4) is fixedly provided inside the filter tank body (1), the top of the filter cartridge (4) is not closed and is tightly against the bottom of the tank cover (2), the top of the tank cover (2) is connected to a water pipe (5) for introducing sewage into the filter cartridge (4), the outer wall of the filter tank body (1) is connected to a drainage pipe (6), and the other end of the drainage pipe (6) is fixedly provided with a connection flange (7) for connecting to an input end of a water pump; The self-cleaning component is arranged in the filter cartridge (4) and is used to clean the residue on the filter holes of the filter cartridge (4), thereby ensuring the filtering effect without the need to frequently replace the filter cartridge (4).

2. The high-efficiency self-cleaning water pump pre-filter device according to claim 1 is characterized in that: The self-cleaning component comprises a transmission rod (8) rotatably mounted at the center of the bottom of the tank cover (2); a driving motor (9) for driving the transmission rod (8) to rotate is fixedly mounted on the top of the tank cover (2); two scraping strips (10) are symmetrically fixedly arranged on the transmission rod (8); the scraping strips (10) are arranged to fit the inner wall of the filter cartridge (4); and bristles are fixedly arranged on the surface of the scraping strips (10) to penetrate into the filter holes of the filter cartridge (4).

3. The high-efficiency self-cleaning water pump pre-filter device according to claim 2 is characterized in that: The bottom of the filter tank body (1) is connected to a sewage discharge pipe (11), the top of the sewage discharge pipe (11) is arranged to penetrate the bottom of the inner wall of the filter cartridge (4), and a sewage discharge valve (12) is arranged on the sewage discharge pipe (11).

4. The high-efficiency self-cleaning water pump pre-filter device according to claim 3 is characterized in that: A push plate (13) is fixedly arranged on the transmission rod (8) for pushing sediments toward the sewage pipe (11) for discharge, and the bottom of the push plate (13) is arranged to fit the bottom of the inner wall of the filter cartridge (4).

5. The high-efficiency self-cleaning water pump pre-filter device according to claim 1 is characterized in that: The filtering tank body (1) and the tank cover (2) are fixed by means of a plurality of buckles (3) so that the tank cover (2) can be opened and closed.

6. The high-efficiency self-cleaning water pump pre-filter device according to claim 1 is characterized in that: A sealing ring (14) is fixedly arranged at the bottom of the tank cover (2) for improving the sealing performance with the filtering tank body (1).

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