A water pump inlet filter device

Abstract

This utility model discloses a water pump inlet filter device, specifically relating to the technical field of filter devices. It includes a main inlet pipe and a filter cartridge body. A rotary filter cartridge assembly is installed inside the main inlet pipe. A cover plate is located on the right side of the main inlet pipe, and an inlet water pipe is fixed to the top right side of the cover plate. This utility model incorporates a lever plate, with the rotating cylinder and filter cartridge body assembled as a single unit and movably installed inside the main inlet pipe. Multiple lever plates are installed on the inner wall of the rotating cylinder and filter cartridge body in a ring-shaped arrangement. When liquid enters the inner side of the rotating cylinder and filter cartridge body through the inlet water pipe, it impacts the lever plates located on the inner side. The lever plates are arc-shaped and, under the impact of the water flow, assist the rotating cylinder and filter cartridge body in rotating inside the main inlet pipe, switching their engagement positions with the lever plates. This position switching prevents debris from adhering and affecting the use of the filter holes, thus enhancing the performance of the filter cartridge body inside the water pump inlet filter device.

Description

Technical Field

[0001] This utility model relates to the field of filter screen device technology, specifically a water pump inlet filter screen device. Background Technology

[0002] The main function of the inlet filter screen of the water pump is to filter impurities in the water, such as sand, mud, and suspended solids, to prevent them from being pumped into the water pump, affecting the water quality and normal operation of the water pump, and even causing damage to the internal components of the water pump and affecting its service life. Under normal circumstances, the inlet filter screen of the water pump should be installed in the water inlet pipe to filter impurities entering the water pump to the maximum extent and improve the filter screen's performance.

[0003] The filter screen inside the water pump inlet filter device is in a relatively fixed position relative to the water outlet pipe. Over a long period of use, debris will accumulate and easily affect the performance of the internal filter screen.

[0004] Therefore, a water pump inlet filter device is needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a water pump inlet filter device to solve the problem mentioned in the background art that the internal filter of the water pump inlet filter device has poor performance after long-term use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water pump inlet filter device, wherein a drain pipe is fixed to the left side of the bottom end of the main water inlet pipe, a tail plate is fixed to the left side of the main water inlet pipe, a rotary filter cartridge assembly is provided inside the main water inlet pipe, the rotary filter cartridge assembly includes a cover plate, a water inlet pipe, a docking platform, a convex ring, a connecting groove, a rotating cylinder, a filter cartridge body, filter holes, and a deflector plate, a cover plate is provided on the right side of the main water inlet pipe, a water inlet pipe is fixed to the top right side of the cover plate, a docking platform is fixed at the center of the left side of the cover plate, the left side of the docking platform extends into the interior of the main water inlet pipe, a rotating cylinder is movably installed on the outside of the water inlet pipe, a convex ring is fixed to the outer wall of the docking platform, a connecting groove is provided on the inner wall of the rotating cylinder, a filter cartridge body is fixed to the left side of the rotating cylinder, filter holes are provided through the outer wall of the filter cartridge body, and a deflector plate is fixed to the inner wall of the rotating cylinder and the filter cartridge body.

[0007] As a further technical solution of this utility model, two sets of convex rings are fixed on the outer side wall of the docking platform, and the two sets of convex rings are distributed in parallel.

[0008] As a further technical solution of this utility model, a plurality of filter holes are provided through the outer side wall of the filter cartridge body, and the plurality of filter holes are distributed at equal intervals.

[0009] As a further technical solution of this utility model, several of the dial plates are fixed on the inner sidewall of the rotating cylinder and the filter cylinder body, and the several dial plates are distributed in a ring.

[0010] As a further technical solution of this utility model, a sewage pipe is fixed to the bottom right side of the cover plate, a sealing plug is connected to the internal thread of the sewage pipe, and a sealing cap is fixed to the right side of the sealing plug.

[0011] As a further technical solution of this utility model, a sleeve is fixed on the left side of the cover plate, and the cross-section of the sleeve is larger than the cross-section of the main water inlet pipe.

[0012] As a further technical solution of this utility model, a fixing platform is fixed at the top of the sleeve, a fixing hole is provided inside the fixing platform, a fixing bolt is threaded inside the fixing hole, and the bottom end of the fixing bolt contacts the top of the water inlet pipe.

[0013] As a further technical solution of this utility model, a sealing groove is provided on the left side surface of the cover plate, and a sealing gasket is provided inside the sealing groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up a deflector, the rotating cylinder and the filter cylinder body are combined as a whole and movably installed inside the water inlet pipe for use. Multiple sets of deflectors are installed on the inner side wall of the rotating cylinder and the filter cylinder body in a ring distribution. When the liquid enters the inner side of the rotating cylinder and the filter cylinder body along the water inlet pipe, it impacts the deflector located on the inner side. The deflector is arc-shaped and can assist the rotating cylinder and the filter cylinder body in rotating inside the water inlet pipe by being impacted by the water flow, switching the docking position with the deflector. By switching the position, it is avoided that the attachment of debris will affect the use of the filter holes, thus enhancing the use effect of the filter cylinder body inside the water pump inlet filter screen device.

[0015] By setting up a drain pipe, which is distributed on the outside of the cover plate along with the water inlet pipe, the drain pipe is connected to the internal space of the rotating cylinder and the filter body. By rotating the sealing cover, the threads between the sealing plug and the drain pipe are separated, and the sealing cover is removed. With the help of the drain pipe, the debris inside the rotating cylinder and the filter body can be cleaned, thus realizing the debris cleaning function of the water pump inlet filter device.

[0016] By using a sleeve and a fixing bolt, the sleeve is placed on the outside of the main water inlet pipe, and the fixing bolt is tightened. The bottom end of the fixing bolt rests against the surface of the main water inlet pipe, thus completing the installation of the cover plate, the inner rotating cylinder, and the filter cartridge body. Conversely, by loosening the fixing bolt, the sleeve is separated from the main water inlet pipe, and the cover plate, the rotating cylinder, and the filter cartridge body can be pulled out from the inside of the main water inlet pipe, thus achieving convenient disassembly and assembly of the filter cartridge body of the water pump inlet filter screen device. Attached Figure Description

[0017] Figure 1 This is a frontal cross-sectional view of the present invention.

[0018] Figure 2 This is a side sectional view of the present invention.

[0019] Figure 3 This is a front view cross-sectional structural diagram of the cover plate of this utility model;

[0020] Figure 4 For the present utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. Main inlet pipe; 2. Drain pipe; 3. Tail plate; 4. Cover plate; 5. Inlet water pipe; 6. Connecting platform; 7. Protruding ring; 8. Connecting groove; 9. Rotating cylinder; 10. Filter cartridge body; 11. Filter hole; 12. Baffle plate; 13. Drain pipe; 14. Sealing plug; 15. Sealing cover; 16. Sleeve; 17. Fixing platform; 18. Fixing hole; 19. Fixing bolt; 20. Sealing groove; 21. Sealing gasket. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4This utility model provides an embodiment of a water pump inlet filter device, comprising a main inlet pipe 1 and a filter cartridge body 10. A drain pipe 2 is fixed to the left side of the bottom end of the main inlet pipe 1, and a tail plate 3 is fixed to the left side of the main inlet pipe 1. A rotary filter cartridge assembly is provided inside the main inlet pipe 1. The rotary filter cartridge assembly includes a cover plate 4, an inlet water pipe 5, a docking platform 6, a convex ring 7, a connecting groove 8, a rotating cylinder 9, a filter cartridge body 10, filter holes 11, and a deflector plate 12. A cover plate 4 is provided on the right side of the main inlet pipe 1, and an inlet water pipe 5 is fixed to the top right side of the cover plate 4. A docking platform 6 is fixed at the center position on the left side of the cover plate 4, and the left side of the docking platform 6 extends into the interior of the main inlet pipe 1. The rotating cylinder 9 is movably installed on the outer side of the water inlet pipe 5. A convex ring 7 is fixed on the outer side wall of the docking platform 6. Two sets of convex rings 7 are fixed on the outer side wall of the docking platform 6 and the two sets of convex rings 7 are distributed in parallel. A connecting groove 8 is provided on the inner side wall of the rotating cylinder 9. A filter cartridge body 10 is fixed on the left side of the rotating cylinder 9. A filter hole 11 is provided through the outer side wall of the filter cartridge body 10. Several filter holes 11 are provided through the outer side wall of the filter cartridge body 10 and are distributed at equal intervals. A lever plate 12 is fixed on the inner side wall of the rotating cylinder 9 and the filter cartridge body 10. Several lever plates 12 are fixed on the inner side wall of the rotating cylinder 9 and the filter cartridge body 10 and are distributed in a ring.

[0024] Specifically, such as Figure 1 and Figure 2 As shown, during use, the rotating cylinder 9 and the filter body 10 are movably installed on the docking platform 6 on the right side of the cover plate 4 and inserted into the inside of the water inlet pipe 1. The liquid enters the rotating cylinder 9 and the filter body 10 through the water inlet pipe 5 on the right side of the cover plate 4, and after being filtered through the filter hole 11, it is discharged through the drain pipe 2. During this process, the water flow impacts the lever 12 located inside the rotating cylinder 9 and the filter body 10. The lever 12 is subjected to force, which can assist the rotating cylinder 9 and the filter body 10 to rotate inside the water inlet pipe 1. In this way, the filter hole 11 connected to the drain pipe 2 can be switched.

[0025] A drain pipe 13 is fixed to the bottom right side of the cover plate 4. A sealing plug 14 is connected to the internal thread of the drain pipe 13. A sealing cap 15 is fixed to the right side of the sealing plug 14.

[0026] Specifically, such as Figure 1 and Figure 3 As shown, during use, rotate the sealing cover 15. After the threads between the sealing plug 14 and the drain pipe 13 are separated, the sealing cover 15 can be removed. The drain pipe 13 is connected to the internal space of the rotating cylinder 9 and the filter body 10, which can help clean the impurities filtered inside the rotating cylinder 9 and the filter body 10. When the drain pipe 2 is closed, liquid is introduced into the water inlet pipe 5. After the liquid enters the inside of the rotating cylinder 9 and the filter body 10, it can be discharged along the drain pipe 13 to perform the rinsing operation inside the rotating cylinder 9 and the filter body 10.

[0027] A sleeve 16 is fixed on the left side of the cover plate 4. The cross-section of the sleeve 16 is larger than the cross-section of the water inlet pipe 1. A fixing platform 17 is fixed at the top of the sleeve 16. A fixing hole 18 is provided inside the fixing platform 17. A fixing bolt 19 is threaded inside the fixing hole 18. The bottom end of the fixing bolt 19 contacts the top end of the water inlet pipe 1. A sealing groove 20 is provided on the left side surface of the cover plate 4. A sealing gasket 21 is provided inside the sealing groove 20.

[0028] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, when in use, tighten the fixing bolt 19 until it is loose. After loosening the fixing of the sleeve 16 and the cover plate 4, the cover plate 4, the rotating cylinder 9 on the left side, and the filter body 10 can be pulled out from the inside of the water inlet pipe 1 to facilitate maintenance of the filter body 10.

[0029] Working principle: In use, the rotating cylinder 9 and the filter body 10 are movably installed on the docking platform 6 on the right side of the cover plate 4 and inserted into the inside of the main water inlet pipe 1. The fixing bolt 19 is tightened for fixation. The water inlet pipe 5 is connected to the inside of the rotating cylinder 9 and the filter body 10. Liquid enters the rotating cylinder 9 and the filter body 10 through the water inlet pipe 5, is filtered through the filter holes 11, and then discharged through the drain pipe 2. During this process, the water flow impacts the deflector plate 12 located inside the rotating cylinder 9 and the filter body 10. The deflector plate 12, under pressure, assists the rotating cylinder 9 and the filter body 10 in rotating inside the main water inlet pipe 1. The rotating filter body 10 can switch between the drain pipe 2 and the main water inlet pipe 10. The connected filter holes 11 can prevent debris from clogging the filter holes 11 after long-term use. If the drain pipe 2 is closed, the sealing cover 15 is removed, and the tail plate 3 is opened, liquid is introduced into the inlet pipe 5. After the liquid enters the inside of the rotating cylinder 9 and the filter body 10, it can be discharged along the drain pipe 13 to perform a flushing operation inside the rotating cylinder 9 and the filter body 10 to clean the debris inside the rotating cylinder 9 and the filter body 10. If the fixing bolt 19 is loosened and the fixing of the sleeve 16 and the cover plate 4 is loosened, the cover plate 4 and the rotating cylinder 9 and the filter body 10 on the left side can be pulled out from the inside of the water inlet pipe 1. After being pulled out, the filter body 10 can be directly maintained.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A water supply pump inlet strainer device comprising a water inlet main (1) and a filter cartridge body (10), characterised in that: A drain pipe (2) is fixed to the left side of the bottom end of the main water inlet pipe (1), a tail plate (3) is fixed to the left side of the main water inlet pipe (1), and a rotary filter cartridge assembly is provided inside the main water inlet pipe (1). The rotary filter cartridge assembly includes a cover plate (4), an inlet water pipe (5), a docking platform (6), a convex ring (7), a connecting groove (8), a rotating cylinder (9), a filter cartridge body (10), filter holes (11), and a baffle plate (12). The cover plate (4) is provided on the right side of the main water pipe (1), and the inlet water pipe (5) is fixed at the top right side of the cover plate (4). The docking platform (6) is fixed at the center of the left side of the cover plate (4), and the left side of the docking platform (6) extends to... Inside the main water inlet pipe (1), a rotating cylinder (9) is movably installed on the outer side of the water inlet pipe (5). A convex ring (7) is fixed on the outer side wall of the docking platform (6). A connecting groove (8) is provided on the inner side wall of the rotating cylinder (9). A filter cartridge body (10) is fixed on the left side of the rotating cylinder (9). A filter hole (11) is provided through the outer side wall of the filter cartridge body (10). A lever plate (12) is fixed on the inner side wall of the rotating cylinder (9) and the filter cartridge body (10).

2. A water pump inlet strainer device as claimed in claim 1, wherein: Two sets of the convex rings (7) are fixed on the outer side wall of the docking platform (6), and the two sets of convex rings (7) are distributed in parallel.

3. A water pump inlet strainer assembly according to claim 1, wherein: The filter holes (11) are provided in a plurality of places through the outer side wall of the filter body (10), and the plurality of filter holes (11) are distributed at equal intervals.

4. A water pump inlet strainer assembly according to claim 1, wherein: Several of the levers (12) are fixed on the inner sidewalls of the rotating cylinder (9) and the filter cylinder body (10), and the levers (12) are arranged in a ring.

5. A water pump inlet screen assembly according to claim 1, wherein: A drain pipe (13) is fixed to the bottom right side of the cover plate (4). A sealing plug (14) is connected to the internal thread of the drain pipe (13). A sealing cap (15) is fixed to the right side of the sealing plug (14).

6. A water pump inlet screen assembly according to claim 1, wherein: A sleeve (16) is fixed on the left side of the cover plate (4), and the cross-section of the sleeve (16) is larger than the cross-section of the water inlet pipe (1).

7. A water pump inlet strainer assembly according to claim 6 wherein: The top of the sleeve (16) is fixed with a fixing platform (17), and the fixing platform (17) is provided with a fixing hole (18). The fixing hole (18) is threaded with a fixing bolt (19), and the bottom end of the fixing bolt (19) is in contact with the top of the water inlet pipe (1).

8. A water pump inlet screen assembly according to claim 1, wherein: A sealing groove (20) is provided on the left side surface of the cover plate (4), and a sealing gasket (21) is provided inside the sealing groove (20).

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