A self-priming pump with a filtration mechanism

Abstract

This utility model discloses a self-priming pump with a filtration mechanism, relating to the field of self-priming pump technology. It includes a mounting frame, a connecting seat fixedly connected to the outer wall of the mounting frame, a filter box fixedly connected to the outer wall of the connecting seat, an inlet fixedly installed at the top output end of the filter box, a reduction motor fixedly installed on the upper surface of the mounting frame, an output shaft fixedly connected to the output end of the reduction motor, a filtration mechanism inside the filter box, and the other end of the output shaft penetrating and extending into the interior of the filter box, rotatably connected to the filter box. In this utility model, when the self-priming pump body is pumping water, water enters the filter box through the inlet, and is then filtered by the filtration mechanism. The filtered water enters the self-priming pump body through a water pipe and is then discharged through the drain outlet of the self-priming pump body. The design of the filtration mechanism prevents impurities from entering the self-priming pump body.

Description

Technical Field

[0001] This utility model relates to the field of self-priming pump technology, and in particular to a self-priming pump with a filtration mechanism. Background Technology

[0002] Self-priming pumps, as highly efficient fluid transport devices, are widely used in agricultural irrigation, industrial circulating water systems, municipal sewage, and building water supply due to their unique advantage of rapid start-up without external water priming. Their core principle relies on the repeated circulation and separation of the gas-liquid mixing chamber within the pump body, automatically expelling gas from the suction line and thus completing the self-priming process. However, in actual operating conditions, the transported medium often contains solid particles (such as silt, fibers, metal fragments, etc.), colloidal impurities, or biological deposits. The presence of these foreign objects poses a serious challenge to the pump's operational stability and lifespan; therefore, existing self-priming pumps typically incorporate a filtration system.

[0003] For example, Chinese patent document CN217129817U discloses a self-priming pump with a filtering function, which describes that "it includes a self-priming pump body, a filtering mechanism at the inlet end of the self-priming pump body, a filtering pipe communicating with the inlet end of the self-priming pump body, a filtering box on the filtering pipe, a rotating shaft rotatably disposed inside the filtering box, a plurality of second filtering screens disposed on the rotating shaft, the inlet end and outlet end of the filtering box communicating with the filtering pipe, and a first filtering screen with a shape adapted to the filtering box being disposed inside the outlet end of the filtering box." The above self-priming pump can filter the liquid entering the self-priming pump body and prevent impurities from entering the self-priming pump body.

[0004] For example, Chinese patent document CN220600107U discloses a high-efficiency filtering self-priming pump, which describes "a pump body having an inlet and an outlet, and a filter mechanism for efficiently filtering water impurity particles located at the inlet of the pump body. The filter mechanism is a detachable split structure located inside the inlet of the pump body." Through this filter mechanism structure, a multi-layer filtration effect can be effectively achieved, and water impurity particles are filtered and settled in the filter mechanism.

[0005] However, the following defects or problems still exist when combining existing technologies: Traditional self-priming pumps with filtration functions are prone to filter screen blockage due to the accumulation of impurities during long-term operation, so the filter screen needs to be cleaned. Moreover, traditional self-priming pumps with filtration mechanisms mostly use external fixed filter screens, which do not have self-cleaning functions and rely on manual disassembly and cleaning, which reduces the working efficiency of the equipment. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a self-priming pump with a filtration mechanism.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A self-priming pump with a filtration mechanism includes a mounting frame, a connecting seat fixedly connected to the outer wall of the mounting frame, a filter box fixedly connected to the outer wall of the connecting seat, an inlet fixedly installed at the top output end of the filter box, a geared motor fixedly installed on the upper surface of the mounting frame, an output shaft fixedly connected to the output end of the geared motor, a filtration mechanism disposed inside the filter box, the other end of the output shaft penetrating and extending into the interior of the filter box, the output shaft being rotatably connected to the filter box, and the extended end of the output shaft being fixedly connected to the filtration mechanism.

[0009] A self-priming pump body is fixedly mounted on the upper surface of the mounting bracket. A water supply pipe is fixedly connected to the input end of the self-priming pump body. The other end of the water supply pipe passes through and extends into the interior of the filter box. The water supply pipe is fixedly sleeved with the filter box. The extension end of the water supply pipe is rotatably connected to the other end of the filter mechanism. A mounting base is fixedly mounted on the inner wall of the filter box. A scraper is fixedly connected to the outer wall of the mounting base. The scraper contacts the outer wall of the filter mechanism.

[0010] Preferably, the bottom of the filter box has an opening, and a drain pipe is fixedly connected to the bottom opening of the filter box. The drain pipe is inclined, and a sealing plate is fixedly connected to the other end of the drain pipe by bolts.

[0011] Preferably, a bearing seat is fixedly mounted on the upper surface of the mounting bracket, and the bearing seat is rotatably connected to the output shaft.

[0012] Preferably, the filter box has an annular groove at the connection of the output shaft, and a sealing ring is provided in the annular groove, which is sleeved with the output shaft.

[0013] Preferably, the filtration mechanism includes a first side plate, which is fixedly sleeved with the output shaft. A connecting rod is fixedly connected to the inner wall of the first side plate, and a second side plate is fixedly connected to the other end of the connecting rod. The second side plate is rotatably sleeved with the water supply pipe. A filter screen is provided on the outer side of the connecting rod, and the scraper is in contact with the outer wall of the filter screen.

[0014] Preferably, there are multiple connecting rods, which are arranged at equal intervals along the axis of the output shaft, and the filter screen is cylindrical and is sleeved on the outside of the connecting rods.

[0015] Preferably, the outer wall of the water supply pipe is rotatably fitted with a sealing sleeve via a bearing. The sealing sleeve is fixedly fitted with the second side plate. The sealing sleeve has an annular groove at the connection of the water supply pipe. A sealing ring is provided in the annular groove of the sealing sleeve, and the sealing ring is fitted with the water supply pipe.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. In this utility model, when the self-priming pump body is pumping water, water enters the filter box through the inlet and is then filtered by the filtration mechanism. The filtered water enters the self-priming pump body through the water delivery pipe and is then discharged through the drain outlet of the self-priming pump body. The design of the filtration mechanism can prevent impurities from entering the self-priming pump body.

[0018] 2. In this utility model, when it is necessary to clean the impurities adsorbed on the surface of the filter mechanism, the geared motor is started, the geared motor drives the output shaft to rotate, and the output shaft drives the filter screen to rotate clockwise through the first side plate and the connecting rod. The filter screen contacts the scraper, and the scraper scrapes and washes the impurities adsorbed on the surface of the filter screen. The scraped impurities fall off the surface of the filter screen. The bolts on the sealing plate are removed, the sealing plate at the drain pipe is opened, and the scraped impurities and sewage are discharged through the drain pipe, thereby realizing the self-cleaning function of the filter screen. There is no need for manual disassembly and cleaning, which improves the working efficiency of the equipment. Attached Figure Description

[0019] Figure 1 This is a front view of a self-priming pump with a filtration mechanism according to the present invention.

[0020] Figure 2 This is a side view of a self-priming pump with a filtration mechanism according to the present invention.

[0021] Figure 3 This is a front view of the mounting bracket for a self-priming pump with a filtration mechanism according to this utility model.

[0022] Figure 4 This is a front view of the filter box, inlet pipe, geared motor, and output shaft of a self-priming pump with a filtration mechanism according to this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of a self-priming pump with a filtration mechanism, including the filter box, inlet pipe, geared motor, and output shaft.

[0024] Figure 6 This is a schematic diagram of the filter mechanism of a self-priming pump with a filter mechanism according to the present invention.

[0025] Figure 7 This is a schematic diagram of the connecting rod, second side plate, and filter screen of a self-priming pump with a filtration mechanism according to this utility model.

[0026] Figure 8 This is a schematic diagram of the filter box and filter mechanism of a self-priming pump with a filtration mechanism according to the present invention.

[0027] Figure 9This invention relates to a self-priming pump with a filtration mechanism. Figure 8 A schematic diagram of the structure at point A in the middle.

[0028] The following are the labels in the diagram: 1. Mounting bracket; 2. Filter box; 3. Inlet; 4. Gear motor; 5. Output shaft; 6. Filtering mechanism; 601. First side plate; 602. Connecting rod; 603. Second side plate; 604. Filter screen; 605. Sealing sleeve; 7. Shaft seat; 8. Drain pipe; 801. Sealing plate; 9. Self-priming pump body; 10. Connecting seat; 11. Water supply pipe; 12. Mounting seat; 13. Scraper. Detailed Implementation

[0029] 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.

[0030] Example:

[0031] As attached Figure 1 To be continued Figure 9 As shown:

[0032] A self-priming pump with a filtration mechanism includes a mounting frame 1, a connecting seat 10 fixedly connected to the outer wall of the mounting frame 1, a filter box 2 fixedly connected to the outer wall of the connecting seat 10, an inlet 3 fixedly installed at the top output end of the filter box 2, a geared motor 4 fixedly installed on the upper surface of the mounting frame 1, an output shaft 5 fixedly connected to the output end of the geared motor 4, a filtration mechanism 6 provided inside the filter box 2, the other end of the output shaft 5 penetrating and extending into the interior of the filter box 2, the output shaft 5 being rotatably connected to the filter box 2, and the extended end of the output shaft 5 being fixedly connected to the filtration mechanism 6.

[0033] A self-priming pump body 9 is fixedly installed on the upper surface of the mounting bracket 1. A water supply pipe 11 is fixedly connected to the input end of the self-priming pump body 9. The other end of the water supply pipe 11 passes through and extends into the interior of the filter box 2. The water supply pipe 11 is fixedly sleeved with the filter box 2. The extension end of the water supply pipe 11 is rotatably connected to the other end of the filter mechanism 6. A mounting base 12 is fixedly installed on the inner wall of the filter box 2. A scraper 13 is fixedly connected to the outer wall of the mounting base 12. The scraper 13 is in contact with the outer wall of the filter mechanism 6.

[0034] In the above technical solution, the inlet 3 is connected to an external water inlet pipe, and the outlet of the self-priming pump body 9 is connected to an external drainage pipe. When the self-priming pump body 9 is started and pumping water, water enters the filter box 2 through the inlet 3, and then the water is filtered by the filter mechanism 6. The filtered water enters the self-priming pump body 9 through the water supply pipe 11, and then is discharged through the outlet of the self-priming pump body 9. The design of the filter mechanism 6 can prevent impurities from entering the self-priming pump body 9.

[0035] When it is necessary to clean the impurities adsorbed on the surface of the filter mechanism 6, the geared motor 4 is started. The geared motor 4 drives the output shaft 5 to rotate, and the output shaft 5 drives the filter mechanism 6 to rotate clockwise. The filter mechanism 6 comes into contact with the scraper 13, and the scraper 13 scrapes and washes the impurities adsorbed on the surface of the filter mechanism 6. The scraped impurities fall off the surface of the filter mechanism 6.

[0036] As attached Figure 2 As shown, the bottom of the filter box 2 has an opening, and a drain pipe 8 is fixedly connected to the bottom opening of the filter box 2. The drain pipe 8 is inclined, and the other end of the drain pipe 8 is fixedly connected to a sealing plate 801 by bolts.

[0037] In the above technical solution, the scraped impurities fall into the filter box 2. Remove the bolts on the sealing plate 801, open the sealing plate 801 at the drain pipe 8, and the scraped impurities and sewage are discharged through the drain pipe 8. After the impurities are cleaned, cover the sealing plate 801.

[0038] A bearing seat 7 is fixedly mounted on the upper surface of the mounting bracket 1. The bearing seat 7 is rotatably connected to the output shaft 5 and is used to support the output shaft 5.

[0039] The filter box 2 has an annular groove at the connection of the output shaft 5, and a sealing ring is provided in the annular groove. The sealing ring is sleeved with the output shaft 5.

[0040] In the above technical solution, the design of the sealing ring avoids leakage at the connection between the output shaft 5 and the filter box 2.

[0041] As attached Figure 5 To be continued Figure 9 As shown, the filter mechanism 6 includes a first side plate 601, which is fixedly sleeved with the output shaft 5. A connecting rod 602 is fixedly connected to the inner wall of the first side plate 601. A second side plate 603 is fixedly connected to the other end of the connecting rod 602. The second side plate 603 is rotatably sleeved with the water supply pipe 11. A filter screen 604 is provided on the outer side of the connecting rod 602. The scraper 13 is in contact with the outer wall of the filter screen 604. There are multiple connecting rods 602, which are arranged at equal intervals along the axis of the output shaft 5. The filter screen 604 is cylindrical and is sleeved on the outer side of the connecting rod 602. A sealing sleeve 605 is rotatably sleeved on the outer wall of the water supply pipe 11 through a bearing. The sealing sleeve 605 is fixedly sleeved with the second side plate 603. An annular groove is provided in the sealing sleeve 605 at the connection of the water supply pipe 11. A sealing ring is provided in the annular groove of the sealing sleeve 605, and the sealing ring is sleeved with the water supply pipe 11.

[0042] In the above technical solution, when the output shaft 5 rotates, the output shaft 5 drives the filter screen 604 to rotate clockwise through the first side plate 601 and the connecting rod 602. The filter screen 604 contacts the scraper 13, and the scraper 13 scrapes and washes the impurities adsorbed on the surface of the filter screen 604. The scraped impurities fall off the surface of the filter screen 604.

[0043] The specific usage and function of this embodiment: When this utility model is used, the water inlet 3 is connected to an external water inlet pipe, and the drain outlet of the self-priming pump body 9 is connected to an external drain pipe. When the self-priming pump body 9 is started and pumping water, water enters the filter box 2 through the water inlet 3, and then the water is filtered through the filter screen 604. The filtered water enters the self-priming pump body 9 through the water supply pipe 11, and then is discharged through the drain outlet of the self-priming pump body 9. The design of the filter mechanism 6 can prevent impurities from entering the self-priming pump body 9.

[0044] When it is necessary to clean the impurities adsorbed on the surface of the filter screen 604, start the geared motor 4. The geared motor 4 drives the output shaft 5 to rotate. The output shaft 5 drives the filter screen 604 to rotate clockwise through the first side plate 601 and the connecting rod 602. The filter screen 604 contacts the scraper 13. The scraper 13 scrapes and washes the impurities adsorbed on the surface of the filter screen 604. The scraped impurities fall off the surface of the filter screen 604. Remove the bolts on the sealing plate 801 and open the sealing plate 801 at the drain pipe 8. The scraped impurities and sewage are discharged through the drain pipe 8. After the impurities are cleaned, cover the sealing plate 801.

[0045] Please refer to the above structure and process. Figure 1-9 .

[0046] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A self-priming pump with filtering mechanism comprising a mounting frame (1), characterized in that, The mounting bracket (1) is fixedly connected to the outer wall of the mounting bracket (1), and the outer wall of the mounting bracket (10) is fixedly connected to the filter box (2). The top output end of the filter box (2) is fixedly installed with an inlet (3). The upper surface of the mounting bracket (1) is fixedly installed with a geared motor (4). The output end of the geared motor (4) is fixedly connected with an output shaft (5). The filter box (2) is provided with a filter mechanism (6). The other end of the output shaft (5) passes through and extends into the interior of the filter box (2). The output shaft (5) is rotatably connected to the filter box (2). The extension end of the output shaft (5) is fixedly connected to the filter mechanism (6). A self-priming pump body (9) is fixedly installed on the upper surface of the mounting bracket (1). A water supply pipe (11) is fixedly connected to the input end of the self-priming pump body (9). The other end of the water supply pipe (11) passes through and extends into the interior of the filter box (2). The water supply pipe (11) is fixedly sleeved with the filter box (2). The extension end of the water supply pipe (11) is rotatably connected to the other end of the filter mechanism (6). A mounting base (12) is fixedly installed on the inner wall of the filter box (2). A scraper (13) is fixedly connected to the outer wall of the mounting base (12). The scraper (13) is in contact with the outer wall of the filter mechanism (6).

2. The self-priming pump with filtering mechanism according to claim 1, characterized in that, The bottom of the filter box (2) has an opening, and a drain pipe (8) is fixedly connected to the bottom opening of the filter box (2). The drain pipe (8) is inclined, and the other end of the drain pipe (8) is fixedly connected to a sealing plate (801) by bolts.

3. The self-priming pump with filtering mechanism according to claim 1, characterized in that, A bearing seat (7) is fixedly installed on the upper surface of the mounting bracket (1), and the bearing seat (7) is rotatably connected to the output shaft (5).

4. The self-priming pump having a filter mechanism according to claim 1, wherein, The filter box (2) has an annular groove at the connection of the output shaft (5), and a sealing ring is provided in the annular groove. The sealing ring is sleeved with the output shaft (5).

5. The self-priming pump having a filter mechanism according to claim 1, wherein, The filtration mechanism (6) includes a first side plate (601), which is fixedly sleeved with the output shaft (5). A connecting rod (602) is fixedly connected to the inner wall of the first side plate (601). A second side plate (603) is fixedly connected to the other end of the connecting rod (602). The second side plate (603) is rotatably sleeved with the water supply pipe (11). A filter screen (604) is provided on the outer side of the connecting rod (602). The scraper (13) is in contact with the outer wall of the filter screen (604).

6. A self-priming pump with a filtering mechanism according to claim 5, characterized in that, There are multiple connecting rods (602), which are arranged at equal intervals along the axis of the output shaft (5). The filter screen (604) is cylindrical and is sleeved on the outside of the connecting rods (602).

7. The self-priming pump with filter mechanism as claimed in claim 5 wherein, The outer wall of the water supply pipe (11) is fitted with a sealing sleeve (605) through a bearing. The sealing sleeve (605) is fixedly fitted with the second side plate (603). The sealing sleeve (605) has an annular groove at the connection of the water supply pipe (11). A sealing ring is provided in the annular groove of the sealing sleeve (605). The sealing ring is fitted with the water supply pipe (11).

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