Integrated primary filter for water pumps

By designing an integrated primary filter for water pumps with multi-layered filter screens and gear meshing structure, multiple filtrations of water flow are achieved, solving the problem of poor filtration effect in existing technologies and improving water purification effect.

CN224541175UActive Publication Date: 2026-07-24SHANGHAI PUMP MFR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI PUMP MFR
Filing Date
2025-08-22
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing integrated primary filters for water pumps cannot achieve multiple filtrations and thus cannot achieve better filtration results.

Method used

A filtration device comprising multiple layers of filter screens and a gear meshing structure was designed. The motor drives the rotating shaft to rotate multiple filter screens, thereby achieving multiple filtrations of the water flow. The intermittent nature of the water output is controlled by the gear and rack assembly, which prolongs the residence time of the water flow in the filter.

Benefits of technology

It achieves multiple filtrations of water flow, improves filtration efficiency, prevents filter pores from clogging, and enhances water purification.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224541175U_ABST
    Figure CN224541175U_ABST
Patent Text Reader

Abstract

The utility model discloses an integral primary filter for water pump belongs to filter field, an integral primary filter for water pump, including base, the top fixedly connected with the support leg seat of base, the top fixedly connected with filter body of support leg seat, the one end fixedly connected with the water inlet pipe of filter body, the other end fixedly connected with the water outlet pipe of filter body, the inside of filter body is provided with filter equipment, the filter equipment includes fixed pipe, one end fixedly connected in the bottom of filter body of fixed pipe, through above -mentioned each device cooperation and use, make second filter screen rotation when drive full gear rotation, full gear rotation drive adaptation gear reverse, adaptation gear reverse drive third filter screen rotation, third filter screen rotation carries out three times filtration to the water flow after secondary filtration of second filter screen, and then through multiple filtration, reach better filtration effect.
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Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically an integrated primary filter for water pumps. Background Technology

[0002] Filters are an indispensable device in pipelines transporting media, typically installed at the inlet end of pressure reducing valves, pressure relief valves, level control valves, and other equipment. A filter consists of a cylinder, a stainless steel filter screen, a drain section, a transmission device, and an electrical control system. When water passes through the filter cylinder, impurities are blocked. Cleaning is simple: just remove the removable filter cylinder, clean it, and reinstall it. Therefore, use and maintenance are extremely convenient.

[0003] An investigation revealed that a Chinese utility model patent discloses an integrated primary filter for a water pump (publication number: CN213375460U), which includes a flow channel shell. The inlet end of the flow channel shell is provided with a nut, and the outlet end of the flow channel shell is provided with a connector. The inlet end of the flow channel shell has a first mounting groove, and a first valve ball is provided in the first mounting groove. A first handle is connected to the first valve ball. A filter screen is connected to the inlet. The bottom of the filter shell has a second mounting groove, and the second mounting groove has a first drain port. The second mounting groove is connected to a second valve ball, and the second valve ball has a second drain port that communicates with the first drain port. A second handle is connected to the second valve ball.

[0004] Although the aforementioned patent allows for easy and quick filter cleaning by using a second handle and a second valve ball, eliminating the need for staff to travel to a distance to close the main valve when cleaning the filter or water pump, simply by turning the first handle to make the axis of the first valve ball's through hole perpendicular to the water inlet end of the flow channel shell, thus blocking the water flow and avoiding the need for staff to move back and forth between the main water inlet valve and the filter, it is difficult to achieve a better filtration effect through multiple filtrations and needs further improvement.

[0005] Therefore, this utility model provides an integrated primary filter for water pumps to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved This invention provides an integrated primary filter for water pumps, aiming to solve the problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: an integrated primary filter for water pumps, comprising a base, support legs, filter body, inlet pipe, outlet pipe, and filtration device; A support leg is fixedly connected to the top of the base, and a filter body is fixedly connected to the top of the support leg. One end of the filter body is fixedly connected to a water inlet pipe, and the other end is fixedly connected to a water outlet pipe. The filtration device includes a fixed pipe, one end of which is fixedly connected to the bottom of the filter body. This fixed pipe extends through the filter body and into its interior, where a first filter screen is installed. The other end of the fixed pipe is fixedly connected to a motor, with the motor's fixed end fixedly connected to the fixed pipe. The motor's output shaft is fixedly connected to a rotating shaft located inside the fixed pipe. One end of the rotating shaft extends through the filter body and into its interior, where a second filter screen is fixedly connected. A gear is fixedly connected to the bottom of the second filter screen. A matching gear is rotatably connected to the inner wall of the filter body, and a third filter screen is fixedly connected to the top of the matching gear.

[0008] As a preferred technical solution of this application, the side of the full gear meshes with the full gear at the bottom of the side of the adapter gear. Specifically, the side of the first filter screen is provided with a gear groove, and the full gear can mesh with the adapter gear through the gear groove.

[0009] As a preferred technical solution of this application, the inlet pipe, the filter body, and the outlet pipe are interconnected. This design ensures a stable flow of water.

[0010] As a preferred technical solution of this application, the filtration device further includes a four-leaf shaped blade, the circumferential surface of which is fixedly connected to one end of the water outlet pipe, and a matching blade is rotatably connected to one end of the four-leaf shaped blade, that is, the matching blade can rotate relative to the four-leaf shaped blade around the axis of the water outlet pipe, and a force-bearing block is fixedly connected to the side of the matching blade.

[0011] In a preferred embodiment of this application, a spring fixing plate is fixedly connected to the water outlet pipe. A limit rod is fixedly connected to the side of the spring fixing plate. One end of the limit rod passes through and is slidably connected within the rack rod. A return spring is provided between the rack rod and the spring fixing plate, and the return spring is located on the limit rod. One end of the rack rod abuts against the force-bearing block under the action of the return spring, and the rotation axis of the adaptable leaf blade does not pass through the abutment position between the rack rod and the force-bearing block. The return spring is designed to utilize its elasticity to achieve the purpose of automatically returning the rack rod.

[0012] As a preferred technical solution of this application, a baffle is fixedly connected to the inner wall of the filter body. The baffle is designed to limit the water flow into the filter body, ensuring that it must pass through the first filter.

[0013] As a preferred technical solution of this application, a torsion spring is fixedly connected to one end of the adaptable leaf blade, and one end of the torsion spring is fixedly connected to the side of the four-leaf shaped leaf blade. The torsion spring is designed to utilize its torsion force to achieve the purpose of automatically resetting the adaptable leaf blade.

[0014] Beneficial effects 1. This utility model utilizes the cooperation of components such as the second filter screen and the first filter screen inside the filtration device. When the second filter screen rotates, it drives the full gear to rotate. The rotation of the full gear drives the matching gear to rotate in reverse. The rotation of the matching gear drives the third filter screen to rotate. The rotation of the third filter screen performs a third filtration on the water flow after the second filter screen has filtered it twice. Thus, through multiple filtrations, a better filtration effect is achieved.

[0015] 2. This utility model utilizes the interaction of components such as the force-bearing block and rack inside the filter device to intermittently compress the side of the force-bearing block, thereby causing the adaptable leaf blades to rotate intermittently. The intermittent rotation of the adaptable leaf blades causes the leaf blades to overlap with the four-leaf leaf blades, thus intermittently opening the water outlet pipe to discharge water. The intermittent water discharge ensures the filtration time of the water flow inside the filter body, thereby further improving the water purification effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an integrated primary filter for a water pump; Figure 2 This is a three-dimensional cross-sectional view of the top of the filter body of an integrated primary filter for a water pump. Figure 3 A three-dimensional magnified structural diagram of the second filter screen of an integrated primary filter for a water pump; Figure 4 A three-dimensional magnified structural diagram of the third filter screen of an integrated primary filter for a water pump; Figure 5 A three-dimensional magnified structural diagram of the outlet pipe of an integrated primary filter for a water pump; Figure 6 A three-dimensional side profile diagram of an integrated primary filter adapter blade for a water pump; Figure 7 A three-dimensional side-section diagram of an integrated primary filter adapter blade for a water pump.

[0017] In the picture: 1. Base; 2. Support leg; 3. Filter body; 4. Inlet pipe; 5. Outlet pipe; 6. Filter device; 61. Fixing pipe; 62. Motor; 63. Rotating shaft; 64. Second filter screen; 65. First filter screen; 66. Full gear; 67. Adaptive gear; 68. Third filter screen; 69. Gear groove; 601. Four-lobed leaf blade; 602. Adaptive leaf blade; 603. Force block; 604. Rack and pinion; 605. Return spring; 606. Spring fixing plate; 607. Torsion spring; 608. Limiting rod; 609. Baffle plate. Detailed Implementation

[0018] 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.

[0019] This utility model provides an integrated primary filter for water pumps, such as... Figure 1-7 As shown, this integrated primary filter for a water pump includes a base 1, a support leg 2, a filter body 3, an inlet pipe 4, an outlet pipe 5, and a filter device 6. The support leg 2 is fixedly connected to the top of the base 1, and the filter body 3 is fixedly connected to the top of the support leg 2. The inlet pipe 4 is fixedly connected to one end of the filter body 3, and the outlet pipe 5 is fixedly connected to the other end. The filter device 6 includes a fixing pipe 61. One end of the fixing pipe 61 is fixedly connected to the bottom of the filter body 3, and this end of the fixing pipe 61 passes through the filter body 3 and extends into the interior of the filter body 3 to install a first filter screen 65. The other end of the fixing pipe 61 is fixedly connected to a motor 62, i.e., the fixed end of the motor 62 is fixedly connected to the fixing pipe 61. The output shaft of the motor 62 is fixedly connected to a rotating shaft 63, which is located inside the fixing pipe 61. One end of the rotating shaft 63 passes through the filter body 3 and extends into the interior of the filter body 3 to be fixedly connected to a second filter screen 64. The bottom of the second filter screen 64 is fixedly connected to a full gear 66, the inner wall of the filter body 3 is rotatably connected to an adapter gear 67, and the top of the adapter gear 67 is fixedly connected to a third filter screen 68.

[0020] The side of the full gear 66 meshes with the full gear at the bottom of the side of the adapter gear 67. Specifically, the side of the first filter screen 65 is provided with a gear groove 69, through which the full gear 66 can mesh with the adapter gear 67.

[0021] The inlet pipe 4, the filter body 3, and the outlet pipe 5 are connected. This design ensures a stable flow of water.

[0022] The filter device 6 also includes a four-leaf shaped leaf blade 601. The circumferential surface of the four-leaf shaped leaf blade 601 is fixedly connected to one end of the water outlet pipe 5. One end of the four-leaf shaped leaf blade 601 is rotatably connected to a matching leaf blade 602 (that is, the matching leaf blade 602 can rotate relative to the four-leaf shaped leaf blade 601 around the axis of the water outlet pipe 5). A force-bearing block 603 is fixedly connected to the side of the matching leaf blade 602.

[0023] A spring fixing plate 606 is fixedly connected to the water outlet pipe 5. A limit rod 608 is fixed to the spring fixing plate 606. One end of the limit rod 608 passes through and is slidably connected inside the rack rod 604 (i.e., the rack rod 604 has a hole for the limit rod 608 to pass through and slide). A return spring 605 is provided between the rack rod 604 and the spring fixing plate 606, and the return spring 605 is sleeved on the limit rod 608. One end of the rack rod 604 abuts against the force block 603 under the action of the return spring 605, and the rotation axis of the adaptable leaf blade 602 does not pass through the abutment position between the rack rod 604 and the force block 603. Thus, when the rack rod 604 pushes the force block 603 away from the spring fixing plate 606, the force block 603 will drive the adaptable leaf blade 602 to rotate. The design of the return spring utilizes its elasticity to achieve the purpose of automatically resetting the rack 604, while the limit rod 608 is mainly designed to limit the displacement of the rack 604.

[0024] The incomplete teeth on the top side of the adapter gear 67 mesh with the side of the rack rod 604, and the side of the force-bearing block 603 is located on the displacement trajectory of the rack rod 604. This design allows the adapter gear 67 to stably drive the rack rod 604 to make horizontal displacement, and the horizontal displacement of the rack rod 604 stably presses the side of the force-bearing block 603, ensuring stable transmission.

[0025] A baffle 609 is fixedly connected to the inner wall of the filter body 3, such as Figure 7 As shown, if the baffle 609 is not provided, some water will flow directly into the outlet pipe 5 without passing through the first filter screen 65 when passing through the filter body 3. The baffle 609 is provided to seal the gap between the first filter screen 65 and the inner wall of the filter body 3, so that the water must pass through the first filter screen 65 after entering the filter body 3 from the inlet pipe 4 before flowing into the outlet pipe 5.

[0026] A torsion spring 607 is fixedly connected to one end of the adaptable leaf blade 602, and one end of the torsion spring 607 is fixedly connected to the side of the four-leaf shaped leaf blade 601. The design of the torsion spring 607 is to use its torsion force to achieve the purpose of automatically resetting the adaptable leaf blade 602.

[0027] When water flows into the inlet pipe 4 and is filtered by the filter body 3 before being discharged from the outlet pipe 5, the user can start the motor 62 to drive the rotating shaft 63 to rotate. The rotation of the rotating shaft 63 drives the second filter screen 64, so that the water flowing into the inlet pipe 4 undergoes a second filtration after being initially filtered by the first filter screen 65. At the same time, when the second filter screen 64 rotates, it drives the full gear 66 to rotate, which in turn drives the matching gear 67 to rotate in reverse. The reverse rotation of the matching gear 67 drives the third filter screen 68 to rotate, and the rotation of the third filter screen 68 performs a third filtration on the water that has undergone the second filtration by the second filter screen 64. Through multiple filtrations, a better filtration effect is achieved. The rotation of the second filter screen 64 and the third filter screen 68 can, on the one hand, better adsorb impurities in the water and prevent clogging of filter holes in a certain area, and on the other hand, improve the flow of water, allowing the water to have better contact with the first filter screen 65, the second filter screen 64 and the third filter screen 68.

[0028] When the adapter gear 67 rotates, the incomplete teeth on its top rotate accordingly, which in turn intermittently drives the rack rod 604 meshing with it to move horizontally. The horizontal displacement of the rack rod 604 intermittently (the intermittency is achieved due to the "incompleteness" of the incomplete teeth) squeezes the side of the force block 603. The side of the force block 603 is intermittently squeezed, which in turn drives the adapter-shaped leaf blade 602 to rotate intermittently. The intermittent rotation of the adapter-shaped leaf blade 602 causes the leaf blade 602 to overlap with the leaf blade of the four-leaf-shaped leaf blade 601, which in turn intermittently opens the water outlet pipe 5 to discharge water. The intermittent water discharge can ensure the filtration time of the water flow inside the filter body 3, so that the water flow is in contact with the second filter screen 64 and the third filter screen 68 for a longer time, thereby achieving multiple filtrations (the water flow stays in the filter body 3 for a longer time, and the rotation of the second filter screen 64 and the third filter screen 68 will drive the surrounding water flow, so that more water passes through the second filter screen 64 and the third filter screen 68), thereby further improving the water purification effect.

[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. An integrated primary filter for a water pump, comprising a base (1), a support leg (2), a filter body (3), an inlet pipe (4), an outlet pipe (5), and a filter device (6); The top of the base (1) is fixedly connected to a support leg (2), the top of the support leg (2) is fixedly connected to a filter body (3), one end of the filter body (3) is fixedly connected to a water inlet pipe (4), and the other end of the filter body (3) is fixedly connected to a water outlet pipe (5). The filter device (6) includes a fixed tube (61), one end of which is fixedly connected to the bottom of the filter body (3), and this end of the fixed tube (61) passes through the filter body (3) and extends into the interior of the filter body (3) to install a first filter screen (65). The other end of the fixed tube (61) is fixedly connected to a motor (62), and the output shaft of the motor (62) is fixedly connected to a rotating shaft (63). The rotating shaft (63) is located inside the fixed tube (61), and one end of the rotating shaft (63) passes through the filter body (3) and extends into the interior of the filter body (3) to be fixedly connected to a second filter screen (64). The bottom of the second filter screen (64) is fixedly connected to a full gear (66), and the inner wall of the filter body (3) is rotatably connected to a matching gear (67). The top of the matching gear (67) is fixedly connected to a third filter screen (68).

2. The integrated primary filter for a water pump according to claim 1, characterized in that: The side of the full gear (66) meshes with the full gear at the bottom of the side of the adapter gear (67), and the side of the first filter screen (65) is provided with a gear groove (69).

3. The integrated primary filter for a water pump according to claim 2, characterized in that: The inlet pipe (4), the filter body (3), and the outlet pipe (5) are connected together.

4. The integrated primary filter for a water pump according to claim 3, characterized in that: The filter device (6) also includes a four-leaf blade (601), the circumferential surface of which is fixedly connected to one end of the water outlet pipe (5), and one end of which is rotatably connected to a matching blade (602), and a force-bearing block (603) is fixedly connected to the side of the matching blade (602).

5. The integrated primary filter for a water pump according to claim 4, characterized in that: A spring fixing plate (606) is fixedly connected to the water outlet pipe (5). A limiting rod (608) is fixedly connected to the side of the spring fixing plate (606). One end of the limiting rod (608) passes through and is slidably connected inside the rack rod (604). A return spring (605) is provided between the rack rod (604) and the spring fixing plate (606), and the return spring (605) is on the limiting rod (608). One end of the rack rod (604) abuts against the force block (603) under the action of the return spring (605), and the rotation axis of the adaptable leaf blade (602) does not pass through the abutment position between the rack rod (604) and the force block (603).

6. The integrated primary filter for a water pump according to claim 5, characterized in that: A baffle (609) is fixedly connected to the inner wall of the filter body (3).

7. The integrated primary filter for a water pump according to claim 6, characterized in that: One end of the adaptable leaf blade (602) is fixedly connected to a torsion spring (607), and one end of the torsion spring (607) is fixedly connected to the side of the four-leaf leaf blade (601).