Filtering structure of centrifugal pump

Abstract

The utility model discloses a filtering structure of a centrifugal pump, which comprises a body and a connecting block, and the surface of one side of the body is fixedly connected with the connecting block; a stabilizing block is connected to the surface of the side, away from the body, of the connecting block in an attached mode, a filter pipe is connected to the surface of the side, away from the connecting block, of the stabilizing block in a penetrating mode, a penetrating groove is formed in one side of the top surface of the filter pipe, a sealing gasket is fixedly installed in the penetrating groove, and a filter screen is connected to the middle of the interior of the sealing gasket in a penetrating mode. A pressing assembly is arranged on one side of the top surface of the filter pipe; wherein the pressing assembly comprises a fixing block fixedly connected with the filter pipe, and a groove is formed in the fixing block; by arranging the pressing assembly, the filter screen can be replaced more conveniently, so that the replacement efficiency of the filter screen can be improved, meanwhile, the workload of workers is reduced to a certain extent, and the working efficiency of the workers is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pump filter structures, in particular to a centrifugal pump filter structure. Background Art

[0002] A centrifugal pump works by using the rotation of the impeller to cause water to undergo centrifugal motion. Before starting the pump, the pump casing and the suction pipe must be filled with water. Then the motor is started so that the pump shaft drives the impeller and water to rotate at high speed. The water undergoes centrifugal motion and is thrown to the outer edge of the impeller, flowing into the water pressure pipeline of the pump through the flow channel of the volute pump casing.

[0003] Publication No. CN116398484A discloses an external filter structure for a centrifugal pump. Typically, when a filter element needs to be replaced, the two free ends of the flexible fitting sleeve are simply detached outward. The flexible fitting sleeve has a certain degree of flexibility. After the flexible fitting sleeve is detached from the filter cartridge, multiple filter elements distributed in an annular manner can be disassembled and installed, and new filter elements can be replaced. This operation is simple and feasible. However, this patent still has the following problems in actual use:

[0004] Usually when the filter element needs to be replaced, it is only necessary to detach the two free ends of the flexible fitting sleeve outward. The flexible fitting sleeve has a certain flexibility. After the flexible fitting sleeve is detached from the filter cartridge, the multiple filter elements distributed in an annular manner can be disassembled and installed, and new filter elements can be replaced. The operation is simple and feasible.

[0005] A filtering structure of a centrifugal pump is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the present utility model is to provide a filtering structure of a centrifugal pump to solve the problem proposed in the above background technology that when the filter element needs to be replaced, it is only necessary to detach the two free ends of the flexible fitting sleeve outward. The flexible fitting sleeve has a certain flexibility. After the flexible fitting sleeve is detached from the filter cartridge, the multiple filter elements distributed in an annular manner can be disassembled and assembled, and new filter elements can be replaced. The operation is simple and feasible. However, when replacing multiple filter elements, it is necessary to continuously rotate the filter elements distributed in an annular manner. At the same time, when installing the filter element, the filter element needs to be stabilized to avoid the filter element from shifting during operation. This will not only reduce the efficiency of replacing the filter element, but also increase the work efficiency of the staff.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a filtering structure of a centrifugal pump, comprising a body and a connecting block, wherein one side surface of the body is fixedly connected to the connecting block;

[0008] The surface of the connecting block away from the body is fitted with a stabilizing block, and the surface of the stabilizing block away from the connecting block is penetrated by a filter tube, and a through groove is opened on one side of the top surface of the filter tube, a sealing gasket is fixedly installed inside the through groove, and a filter screen is penetrated and connected in the middle of the sealing gasket;

[0009] Also includes:

[0010] A compression assembly is provided on one side of the top surface of the filter tube;

[0011] The pressing assembly includes a fixing block fixedly connected to the filter tube, and a groove is provided inside the fixing block;

[0012] Wherein, a threaded rod is rotatably connected inside the groove, and a threaded sleeve is provided on the surface of the threaded rod.

[0013] Preferably, sliders are symmetrically installed on both sides of the threaded sleeve, and sliding grooves are symmetrically opened on both sides of the groove. The sliding grooves are slidably connected to the sliders, and the sliding grooves are slidably connected to the threaded sleeve.

[0014] Preferably, a connecting plate is fixedly connected to one side surface of the threaded sleeve near the top, a connecting groove is opened inside the connecting plate, a limiting rod is fixedly installed inside the connecting groove, a spring is sleeved on the surface of the limiting rod, one side surface of the spring is fixedly connected to the connecting groove, and the other side surface of the spring is fixedly connected to the connecting rod.

[0015] Preferably, a movable groove is provided inside the connecting rod, the movable groove is slidably connected to the limiting rod, and sliding blocks are symmetrically installed on both sides of the connecting rod.

[0016] Preferably, sliding grooves are symmetrically provided on both sides of the connecting groove, the sliding grooves are slidingly connected to the sliding blocks, the connecting grooves are slidingly connected to the connecting rods, a clamping block is fixedly connected to one side of the bottom surface of the connecting rod, and the bottom surface of the clamping block is fitted and connected to the filter screen.

[0017] Preferably, a card slot is provided inside the filter tube, and the card slot is engaged with the filter screen.

[0018] Preferably, a plurality of mounting holes are provided on the surface of the filter tube.

[0019] Compared with the prior art, the beneficial effect of the present invention is that the filter structure of the centrifugal pump, by providing a pressing assembly, makes it more convenient to replace the filter screen, thereby improving the efficiency of replacing the filter screen, and also reduces the workload of the staff and improves the work efficiency of the staff to a certain extent. The specific contents are as follows:

[0020] 1. By setting a clamping assembly, when the filter needs to be installed, the connecting rod is pushed to move the connecting rod. At the same time, the movement of the connecting rod squeezes the spring, causing the spring to deform. At the same time, after the connecting rod moves to the appropriate position, the filter is passed through the sealing gasket, so that the filter and the card slot are engaged together. The connecting rod is loosened, so that it returns to its original position under the action of the connecting rod spring, so that the clamping block is located directly above the filter. The threaded rod is rotated so that the rotation of the threaded rod can drive the threaded sleeve to descend. At the same time, sliders are fixedly connected to both sides of the threaded sleeve, and the slider is slidably connected to the slide groove. The sliding connection between the slider and the slide groove allows the threaded sleeve to be limited, so that the threaded sleeve can move on the threaded rod. The descent of the threaded sleeve makes The cam can be driven to move downward, and the camming rod and the pressing block can be driven downward by the camming rod, so that the pressing block can firmly press the top of the filter screen, thereby ensuring the stability of the filter screen installation. At the same time, when the filter screen is disassembled, the threaded rod is rotated to make the threaded sleeve rise, so that the pressing block no longer presses the filter screen. After the threaded sleeve drives the connecting plate, the connecting rod and the pressing block to rise to a certain height, the connecting rod is pushed again so that the connecting rod and the pressing block are no longer directly above the filter screen. After the filter screen is separated from the card slot by pulling the filter screen, the filter screen can be disassembled, thereby completing the disassembly of the filter screen, thereby improving the efficiency of filter replacement, and also reducing the workload of the staff and improving the work efficiency of the staff to a certain extent.

[0021] 2. By setting the connecting block, the stabilizing block, the filter tube and the mounting hole, the connecting block and the stabilizing block are installed by nuts and nuts, which makes it more convenient to install the filter tube on the main body. At the same time, the mounting hole is opened on the filter tube, so that when the filter tube is connected to other pipes, it can also be installed by nuts and nuts, thereby improving the connection efficiency of the pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall internal structure of the utility model;

[0024] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0025] Figure 4 This is a schematic diagram of the overall structure of the compression assembly in the utility model;

[0026] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0027] Figure 6 For this utility model Figure 3 Schematic diagram of the enlarged structure of the middle C area;

[0028] Figure 7 This is a side view structural diagram of the filter tube in the utility model.

[0029] In the figure: 1. Main body; 2. Connecting block; 3. Stabilizing block; 4. Filter tube; 5. Clamping assembly; 501. Fixed block; 502. Groove; 503. Threaded rod; 504. Threaded sleeve; 505. Slider; 506. Slide groove; 507. Connecting plate; 508. Connecting groove; 509. Limiting rod; 510. Spring; 511. Connecting rod; 512. Moving groove; 513. Sliding block; 514. Sliding groove; 515. Clamping block; 6. Through groove; 7. Sealing gasket; 8. Filter screen; 9. Card slot; 10. Mounting hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1-7 The utility model provides a technical solution: a filtering structure of a centrifugal pump, comprising a body 1 and a connecting block 2, one side surface of the body 1 is fixedly connected to the connecting block 2; the connecting block 2 is fitted with a stabilizing block 3 on the side surface away from the body 1, and the stabilizing block 3 is connected to the filter tube 4 on the side surface away from the connecting block 2, and a through groove 6 is provided on one side of the top surface of the filter tube 4, a sealing gasket 7 is fixedly installed inside the through groove 6, and a filter screen 8 is connected to the middle of the sealing gasket 7; it also includes: a pressing component 5 is provided on one side of the top surface of the filter tube 4; wherein the pressing component 5 includes a fixing block 501 fixedly connected to the filter tube 4, and a groove 502 is provided inside the fixing block 501; wherein, a threaded rod 503 is rotatably connected to the inside of the groove 502, and a threaded sleeve 504 is provided on the surface of the threaded rod 503, such as Figure 1-7As shown, by setting the clamping assembly 5, it is more convenient to replace the filter 8, thereby improving the replacement efficiency of the filter 8, and also reducing the workload of the staff and improving the work efficiency of the staff to a certain extent. At the same time, it is installed between the connecting block 2 and the stabilizing block 3 through nuts and nuts, which makes it more convenient to install the filter tube 4 on the main body 1. At the same time, the role of the sealing gasket 7 is to seal the place where the filter 8 and the grass trough 6 pass through, thereby reducing the occurrence of leakage.

[0032] Slide blocks 505 are symmetrically installed on both sides of the threaded sleeve 504, and slide grooves 506 are symmetrically opened on both sides of the groove 502. The slide grooves 506 are slidably connected to the slide blocks 505, and the slide grooves 506 are slidably connected to the threaded sleeve 504. A connecting plate 507 is fixedly connected to the surface of the threaded sleeve 504 near the top. A connecting groove 508 is opened inside the connecting plate 507. A limiting rod 509 is fixedly installed inside the connecting groove 508. A spring 510 is provided on the surface of the limiting rod 509. One side surface of the spring 510 is fixedly connected to the connecting groove 508, and the other side surface of the spring 510 is fixedly connected to Connecting rod 511, a moving groove 512 is provided inside the connecting rod 511, and the moving groove 512 is slidably connected to the limit rod 509. Sliding blocks 513 are symmetrically installed on both sides of the connecting rod 511, and sliding grooves 514 are symmetrically provided on both sides of the connecting groove 508. The sliding groove 514 is slidably connected to the sliding block 513, and the connecting groove 508 is slidably connected to the connecting rod 511. A pressing block 515 is fixedly connected to one side of the bottom surface of the connecting rod 511, and the bottom surface of the pressing block 515 is fitted and connected to the filter screen 8. A card slot 9 is provided inside the filter tube 4, and the card slot 9 is engaged and connected to the filter screen 8. Figure 3-6As shown, by pushing the connecting rod 511, the connecting rod 511 moves, and the movement of the connecting rod 511 squeezes the spring 510, thereby causing the spring 510 to deform. At the same time, after the connecting rod 511 moves to a suitable position, the filter screen 8 is passed through the sealing gasket 7, so that the filter screen 8 is engaged with the card slot 9. By loosening the connecting rod 511, the connecting rod 511 is restored to its original position under the action of the spring 510, so that the pressing block 515 is located just above the filter screen 8. Then, by rotating the threaded rod 503, the rotation of the threaded rod 503 can drive the threaded sleeve 504 to descend, and at the same time, the two ends of the threaded sleeve 504 are engaged. The side is fixedly connected with a slider 505, and the slider 505 is slidably connected to the slide groove 506. The sliding connection between the slider 505 and the slide groove 506 allows the threaded sleeve 504 to be limited, so that the threaded sleeve 504 can move on the threaded rod 503. The descent of the threaded sleeve 504 drives the connecting plate 507 to descend. The descent of the connecting plate 507 drives the connecting rod 511 and the clamping block 515 to descend, so that the clamping block 515 can firmly press the top of the filter screen 8, thereby ensuring the stability of the installation of the filter screen 8. At the same time, the spring 510 is a compression spring in the prior art.

[0033] The surface of the filter tube 4 is provided with a plurality of mounting holes 10, such as Figure 7 As shown, by providing a mounting hole 10 on the filter tube 4, the filter tube 4 can be installed with nuts and caps when connected to other pipelines, thereby improving the connection efficiency of the pipelines.

[0034] Working principle: Before using the filtration structure of this centrifugal pump, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 7As shown, first, when the filter screen 8 needs to be installed, the connecting rod 511 is pushed to move the connecting rod 511. At the same time, the movement of the connecting rod 511 will squeeze the spring 510, thereby causing the spring 510 to deform. At the same time, after the connecting rod 511 moves to the appropriate position, the filter screen 8 is passed through the sealing gasket 7, so that the filter screen 8 is engaged with the card slot 9. After the connecting rod 511 is loosened, the connecting rod 511 is restored to its original position under the action of the spring 510, so that the pressing block 515 is located just above the filter screen 8. After that, the threaded rod 503 is rotated, so that the rotation of the threaded rod 503 can drive the threaded sleeve 504 to descend. At the same time, sliders 505 are fixedly connected to both sides of the threaded sleeve 504, and the sliders 505 are slidably connected to the slide grooves 506. The sliding connection between the sliders 505 and the slide grooves 506 can limit the threaded sleeve 504, so that the threaded sleeve 504 can move on the threaded rod 503. When the filter 8 is removed, the threaded sleeve 504 is raised by rotating the threaded rod 503, so that the pressing block 515 no longer presses the filter 8. After the threaded sleeve 504 drives the connecting plate 507, the connecting rod 511 and the pressing block 515 to rise to a certain height, the connecting rod 511 is pushed again, so that the connecting rod 511 and the pressing block 515 are no longer directly above the filter 8. After the filter 8 is separated from the card slot 9 by pulling the filter 8, the filter 8 can be removed, thereby completing the disassembly of the filter 8, thereby improving the efficiency of replacing the filter 8, and also reducing the workload of the staff and improving the work efficiency of the staff to a certain extent.

[0035] Secondly, by setting the connecting block 2, the stabilizing block 3, the filter tube 4 and the mounting hole 10, the connecting block 2 and the stabilizing block 3 are installed by nuts and nuts, which makes it more convenient to install the filter tube 4 on the main body 1. At the same time, the mounting hole 10 is opened on the filter tube 4, so that when the filter tube 4 is connected to other pipes, it can also be installed by nuts and nuts, thereby improving the connection efficiency of the pipes.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A centrifugal pump filtering structure, comprising a body (1) and a connecting block (2), wherein one side surface of the body (1) is fixedly connected to the connecting block (2); The surface of the connecting block (2) on one side away from the body (1) is fitted with a stabilizing block (3), the surface of the stabilizing block (3) on one side away from the connecting block (2) is connected through a filter tube (4), a through groove (6) is provided on one side of the top surface of the filter tube (4), a sealing gasket (7) is fixedly installed inside the through groove (6), and a filter screen (8) is connected through the middle of the inside of the sealing gasket (7); It is characterized by: Also includes: A pressing assembly (5) is provided on one side of the top surface of the filter tube (4); The pressing assembly (5) comprises a fixing block (501) fixedly connected to the filter tube (4), and a groove (502) is provided inside the fixing block (501); The groove (502) is internally rotatably connected to a threaded rod (503), and a threaded sleeve (504) is provided on the surface of the threaded rod (503).

2. The filter structure of a centrifugal pump according to claim 1, characterized in that: Slide blocks (505) are symmetrically installed on both sides of the threaded sleeve (504), and sliding grooves (506) are symmetrically opened on both sides of the groove (502). The sliding grooves (506) are slidably connected to the slide blocks (505), and the sliding grooves (506) are slidably connected to the threaded sleeve (504).

3. The filter structure of a centrifugal pump according to claim 1, characterized in that: A connecting plate (507) is fixedly connected to a surface of one side of the threaded sleeve (504) near the top, a connecting groove (508) is provided inside the connecting plate (507), a limiting rod (509) is fixedly installed inside the connecting groove (508), a spring (510) is sleeved on the surface of the limiting rod (509), one side surface of the spring (510) is fixedly connected to the connecting groove (508), and the other side surface of the spring (510) is fixedly connected to a connecting rod (511).

4. The filter structure of a centrifugal pump according to claim 3, characterized in that: A movable groove (512) is provided inside the connecting rod (511), and the movable groove (512) is slidably connected to the limiting rod (509). Sliding blocks (513) are symmetrically installed on both sides of the connecting rod (511).

5. The filter structure of a centrifugal pump according to claim 3, characterized in that: Sliding grooves (514) are symmetrically provided on both sides of the connecting groove (508), the sliding grooves (514) are slidably connected to the sliding blocks (513), the connecting groove (508) is slidably connected to the connecting rod (511), a pressing block (515) is fixedly connected to one side of the bottom surface of the connecting rod (511), and the bottom surface of the pressing block (515) is fitted and connected to the filter screen (8).

6. The filter structure of a centrifugal pump according to claim 1, characterized in that: A card slot (9) is provided inside the filter tube (4), and the card slot (9) is engaged and connected with the filter screen (8).

7. The filter structure of a centrifugal pump according to claim 1, characterized in that: A plurality of mounting holes (10) are provided on the surface of the filter tube (4).

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