Centrifugal pump bottom valve filtering device

Abstract

The utility model discloses a centrifugal pump bottom valve filtering device which comprises a connecting cylinder, a mounting plate is fixedly connected to the outer side of the connecting cylinder, a filtering cover is fixedly connected to the lower portion of the connecting cylinder, a bottom plate is fixedly connected to the lower portion of the filtering cover, and a rotating ring is rotationally connected to the outer side of the lower portion of the connecting cylinder. A first gear ring is fixedly connected to the outer side of the rotating ring, a power gear is connected to the outer side of the first gear ring in a meshed mode, a connecting plate is fixedly connected to the lower portion of the rotating ring, a rotating shaft is rotatably connected to one side of the lower portion of the connecting plate, and a plurality of sets of cutting blades are fixedly connected to the outer side of the rotating shaft; a rotating groove communicated with the communicating groove is formed in the bottom plate, a second gear ring is fixedly connected to the inner side of the rotating groove, the lower portion of the rotating shaft penetrates through the communicating groove to be fixedly connected with a connecting gear, the connecting gear is meshed with the second gear ring, and the situation that large impurities shield the filter cover, and normal circulation of liquid is affected is prevented.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump technology, specifically to a centrifugal pump bottom valve filter device. Background Technology

[0002] Centrifugal pumps rely on the centrifugal force generated by the rotation of an impeller to transport liquids. They use the high-speed rotating impeller blades to drive the water to rotate and throw the water out, thereby achieving the purpose of transportation. When using centrifugal pumps, a filter screen is usually installed on the outside of the pump bottom valve to filter impurities such as aquatic plants in the water.

[0003] However, when using the existing filter screen, impurities such as aquatic plants or plastic bags easily adhere to the surface of the screen due to the pump's suction of water, causing the mesh to become clogged. This prevents water from passing through the filter screen smoothly, resulting in low pumping efficiency of the centrifugal pump. Utility Model Content

[0004] The purpose of this invention is to provide a centrifugal pump bottom valve filter device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a centrifugal pump bottom valve filter device, comprising a connecting cylinder, an mounting plate fixedly connected to the outer side of the connecting cylinder, a filter cover fixedly connected to the lower part of the connecting cylinder, a base plate fixedly connected to the lower part of the filter cover, a rotating ring rotatably connected to the outer side of the lower part of the connecting cylinder, a first toothed ring fixedly connected to the outer side of the rotating ring, a power gear meshing with the outer side of the first toothed ring, a motor fixedly connected to the upper part of the mounting plate, the power end of the motor penetrating the mounting plate and fixedly connected to the power gear, a connecting plate fixedly connected to the lower part of the rotating ring, a rotating shaft rotatably connected to one side of the lower part of the connecting plate, several sets of cutting blades fixedly connected to the outer side of the rotating shaft, a communicating groove opened on the upper part of the base plate, a rotating groove communicating with the communicating groove opened inside the base plate, a second toothed ring fixedly connected to the inner side of the rotating groove, and a connecting gear fixedly connected to the lower part of the rotating shaft penetrating the communicating groove, the connecting gear meshing with the second toothed ring.

[0006] Preferably, a protective cover is fixedly connected to the lower side of the mounting plate, and the protective cover is sleeved on the outside of the first gear ring and the power gear.

[0007] Preferably, a limiting plate is fixedly connected to the lower outer side of the connecting cylinder, and the limiting plate and the protective cover are disposed on both sides of the connecting plate.

[0008] Preferably, the base plate has an installation groove that communicates with the connecting groove, and a retaining ring is rotatably connected to the installation groove and the connecting groove. The retaining ring has an installation hole facing the rotating shaft on its inner side.

[0009] Preferably, the lower part of the base plate is provided with an inclined platform, and the lower middle part of the base plate and the inclined platform is provided with a connecting hole facing the filter cover.

[0010] Preferably, a flange is fixedly connected to the upper part of the connecting cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The electric motor-driven power gear of this utility model drives the rotating ring to rotate through the first gear ring, thereby driving the rotating shaft on the lower side of the mounting plate to rotate around the outer wall of the filter cover. At the same time, the rotating shaft rotates around the rotating groove. The second gear ring is connected to the gear through meshing, thereby driving the rotating shaft to rotate itself. The cutting blade cuts up large impurities on the outside of the filter cover to prevent large impurities from blocking the filter cover and affecting the normal flow of liquid.

[0013] 2. This utility model also features a protective cover fitted over the outside of the first gear ring and the power gear. The retaining ring rotates with the rotation of the rotating shaft at the mounting groove and the connecting groove, which can isolate the gear structure from the outside world and prevent impurities from affecting the meshing of the gears. Attached Figure Description

[0014] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a second-view three-dimensional structural cross-sectional view of the present invention;

[0016] Figure 3 This is an enlarged view of the first toothed ring structure from a third-view perspective of this utility model;

[0017] Figure 4 This is an enlarged view of the second toothed ring structure from the fourth perspective of this utility model.

[0018] In the diagram: 1. Connecting cylinder; 2. Mounting plate; 3. Rotating ring; 4. Connecting plate; 5. Rotating shaft; 6. Cutting blade; 7. First gear ring; 8. Power gear; 9. Motor; 10. Base plate; 11. Connecting groove; 12. Rotating groove; 13. Second gear ring; 14. Connecting gear; 15. Protective cover; 16. Limiting plate; 17. Mounting groove; 18. Retaining ring; 19. Mounting hole; 20. Connecting hole; 21. Inclined platform; 22. Flange; 23. Filter cover. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a centrifugal pump bottom valve filter device, including a connecting cylinder 1, an mounting plate 2 fixedly welded to the outside of the connecting cylinder 1, a filter cover 23 fixedly welded to the lower part of the connecting cylinder 1 for filtering the liquid entering the centrifugal pump, a bottom plate 10 fixedly welded to the lower part of the filter cover 23, a rotating ring 3 rotatably mounted on the lower outer side of the connecting cylinder 1, a first toothed ring 7 fixedly welded to the outside of the rotating ring 3, a power gear 8 meshing with the outside of the first toothed ring 7, a motor 9 mounted on the upper flange of the mounting plate 2, the power end of the motor 9 penetrating the mounting plate 2 and connected to the power gear 8 via a coupling, a connecting plate 4 fixedly welded to the lower part of the rotating ring 3, a rotating shaft 5 rotatably mounted on one side of the lower part of the connecting plate 4, and several... The cutting blade 6 has a connecting groove 11 on the upper part of the base plate 10. The base plate 10 has a rotating groove 12 that communicates with the connecting groove 11. A second toothed ring 13 is fixedly welded to the inner side of the rotating groove 12. A connecting gear 14 is fixedly welded to the lower part of the rotating shaft 5 through the connecting groove 11. The connecting gear 14 meshes with the second toothed ring 13. The motor 9 drives the power gear 8, which drives the rotating ring 3 to rotate through the first toothed ring 7, thereby driving the rotating shaft 5 on the lower side of the mounting plate 2 to rotate around the outer wall of the filter cover 23. At the same time, the rotating shaft 5 rotates around the rotating groove 12. The second toothed ring 13 drives the rotating shaft 5 to rotate itself by meshing with the connecting gear 14. The cutting blade 6 cuts up large impurities on the outside of the filter cover 23 to prevent the filter cover 23 from being blocked.

[0021] A protective cover 15 is fixedly welded to the lower side of the mounting plate 2. The protective cover 15 is sleeved on the outside of the first gear ring 7 and the power gear 8, isolating the first gear ring 7 and the power gear 8 from the outside, preventing impurities from entering and affecting their meshing.

[0022] A limiting plate 16 is fixedly welded to the lower outer side of the connecting cylinder 1. The limiting plate 16 and the protective cover 15 are set on both sides of the connecting plate 4 to limit the position of the connecting plate 4 and prevent the connecting plate 4 from moving up and down.

[0023] The base plate 10 has an installation groove 17 that communicates with the connecting groove 11. A retaining ring 18 is rotatably installed inside the installation groove 17 and the connecting groove 11. The inner side of the retaining ring 18 has an installation hole 19 facing the rotating shaft 5. The retaining ring 18 rotates with the rotating shaft 5. The retaining ring 18 blocks the connecting groove 11 to prevent impurities from entering the rotating groove 12 along the connecting groove 11 and affecting the meshing relationship between the second toothed ring 13 and the connecting gear 14.

[0024] The bottom plate 10 is provided with a ramp 21 to prevent large impurities from staying on the bottom side of the bottom plate 10, so that the impurities flow to both sides along the ramp 21 and prevent the impurities from directly adhering to the outside of the filter cover 23. The bottom plate 10 and the ramp 21 are provided with a connecting hole 20 facing the filter cover 23 on the middle side of the lower part, so that the liquid can pass through the bottom plate 10 and then continue to pass through the filter cover 23.

[0025] A flange 22 is fixedly welded to the upper part of the connecting cylinder 1 for connection with the pump body.

[0026] Working principle: When this utility model is in use, the motor 9 drives the power gear 8, which drives the rotating ring 3 to rotate through the first gear ring 7, thereby driving the rotating shaft 5 on the lower side of the mounting plate 2 to rotate around the outer wall of the filter cover 23. At the same time, the rotating shaft 5 rotates around the rotating groove 12. The second gear ring 13 is connected to the gear 14 through meshing, thereby driving the rotating shaft 5 to rotate itself. The cutting blade 6 cuts up large impurities on the outside of the filter cover 23 to prevent the filter cover 23 from being blocked.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrifugal pump foot valve filtering device comprising a connecting cylinder (1), characterized in that: A mounting plate (2) is fixedly connected to the outside of the connecting cylinder (1). A filter cover (23) is fixedly connected to the lower part of the connecting cylinder (1). A base plate (10) is fixedly connected to the lower part of the filter cover (23). A rotating ring (3) is rotatably connected to the lower outer side of the connecting cylinder (1). A first toothed ring (7) is fixedly connected to the outer side of the rotating ring (3). A power gear (8) is meshed with the outer side of the first toothed ring (7). A motor (9) is fixedly connected to the upper part of the mounting plate (2). The power end of the motor (9) penetrates the mounting plate (2) and is fixedly connected to the power gear (8). The rotating ring (3) A connecting plate (4) is fixedly connected to the lower part of the base plate (10). A rotating shaft (5) is rotatably connected to one side of the lower part of the connecting plate (4). Several sets of cutting blades (6) are fixedly connected to the outer side of the rotating shaft (5). A connecting groove (11) is opened on the upper part of the base plate (10). A rotating groove (12) communicating with the connecting groove (11) is opened inside the base plate (10). A second toothed ring (13) is fixedly connected to the inner side of the rotating groove (12). A connecting gear (14) is fixedly connected to the lower part of the rotating shaft (5) through the connecting groove (11). The connecting gear (14) meshes with the second toothed ring (13).

2. The centrifugal pump bottom valve filter device according to claim 1, characterized in that: A protective cover (15) is fixedly connected to the lower side of the mounting plate (2), and the protective cover (15) is sleeved on the outside of the first gear ring (7) and the power gear (8).

3. A centrifugal pump foot valve filter apparatus as defined in claim 2, wherein: A limiting plate (16) is fixedly connected to the lower outer side of the connecting cylinder (1), and the limiting plate (16) and the protective cover (15) are arranged on both sides of the connecting plate (4).

4. A centrifugal pump foot valve filter apparatus as defined in claim 1, wherein: The base plate (10) has an installation groove (17) that communicates with the connecting groove (11). The installation groove (17) and the connecting groove (11) are rotatably connected to a retaining ring (18). The retaining ring (18) has an installation hole (19) facing the rotating shaft (5) on its inner side.

5. A centrifugal pump foot valve filter apparatus as defined in claim 1, wherein: The bottom plate (10) is provided with a ramp (21) at the bottom, and the bottom plate (10) and the ramp (21) are provided with a connecting hole (20) facing the filter cover (23) at the middle side of the bottom.

6. A centrifugal pump bottom valve filter device according to claim 1, characterized in that: A flange (22) is fixedly connected to the upper part of the connecting cylinder (1).

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