Anti-blocking structure of centrifugal water pump

Abstract

The utility model relates to the technical field of industry, in particular to an anti-blocking structure of a centrifugal water pump, which comprises a motor, an impeller and a water pump casing, the right end of the water pump casing is fixedly connected with the motor, the left end of the motor is fixedly connected with the impeller, and the left end of the impeller is fixedly connected with a front blade support. The outer portion of the front blade support is fixedly connected with an outer blade groove, the inner side of the front blade support is fixedly connected with an inner blade groove, the inner side of the right end of the front blade support is fixedly connected with a filter screen, the outer side of the right end of the front blade support is fixedly connected with a bearing, and a hydraulic floating object is arranged in the water outlet. The anti-blocking structure of the centrifugal pump has the advantages that the anti-blocking structure of the centrifugal pump is provided with a special blocking object cleaning structure, easy-to-block objects are prevented from being in contact with an impeller, the blocking objects can be effectively discharged after the pump body is blocked, and the blocking objects can be cleaned more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of industry, in particular to an anti-blocking structure of a centrifugal water pump. Background Art

[0002] There are often large impurities in the conveyed liquid during the use of centrifugal pumps. The conveyance of these impurities often causes accumulation at the impeller of the centrifugal pump, thereby clogging the centrifugal pump. The anti-clogging structure of the centrifugal water pump will prevent the accumulation of impurities in the pump body, thereby preventing the centrifugal pump from clogging.

[0003] The anti-blocking structure of a centrifugal water pump can keep the centrifugal water pump unobstructed during the conveying process, but it cannot effectively separate the blockage. The blockage will enter the pipeline and deposit in the pipeline, increasing the load of the centrifugal water pump, thereby reducing the conveying efficiency and failing to fundamentally solve the blockage problem. Therefore, an anti-blocking structure of a centrifugal water pump is proposed to address the above problem. Utility Model Content

[0004] The utility model aims to provide an anti-blocking structure for a centrifugal water pump to solve the problem of blockage caused by the deposition of blockage objects in a water pipe during the conveying process of the centrifugal pump.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A centrifugal water pump anti-clogging structure comprises a motor, an impeller and a water pump housing, wherein the right end of the water pump housing is fixedly connected to the motor, the left end of the motor is fixedly connected to the impeller, the left end of the impeller is fixedly connected to a front blade bracket, the outside of the front blade bracket is fixedly connected to an outer blade groove, the outer blade is connected to the inner part of the outer blade groove by snapping, the inner side of the front blade bracket is fixedly connected to the inner blade groove, the inner blade is connected to the inner blade by snapping, the inner side of the inner blade groove is fixedly connected to a filter screen on the inner side of the right end of the front blade bracket, the outer side of the right end of the front blade bracket is fixedly connected to a bearing, a water inlet is provided on the left end of the water pump housing, a water outlet is provided on the right side of the upper end of the water pump housing, a hydraulic float is provided inside the water outlet, a connecting rod is fixedly connected to the left end of the hydraulic float, an oblique pipe is fixedly connected to the left end of the connecting rod, and a blockage discharge outlet is provided on the left side of the upper end of the water pump housing.

[0007] Preferably, the left end of the front blade bracket is annular, and the front blade bracket is rotatably connected to the water pump housing.

[0008] Preferably, the number of the outer blade slots is 3, and the outer blade slots are arranged on the outer side of the front blade bracket.

[0009] Preferably, the number of the inner blade slots is 3, and the inner blade slots are arranged on the inner side of the front blade bracket.

[0010] Preferably, the number of the inner blades is consistent with the number of the inner blade slots, and the number of the outer blades is consistent with the number of the outer blade slots.

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

[0012] In the utility model, the anti-clogging structure of the centrifugal pump has a unique blockage cleaning structure, which prevents easy blockages from contacting the impeller, and can effectively discharge the pump body after it is blocked, making it more convenient to clean the blockage; at the same time, the inner blades can clean the blockages around the filter screen, so that the blockages cannot adhere to the surface of the filter screen and keep the water pump working stably; at the same time, the ring arranged on the front blade bracket isolates larger blockages so that they cannot directly enter the front impeller bracket; at the same time, the front blade bracket can crush the blockages, making it easier to discharge the blockages; at the same time, the inner blade grooves and outer blade grooves are arranged so that the blades can be specifically replaced after being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0015] Figure 3 It is a left view structural schematic diagram of the front blade bracket of the utility model.

[0016] In the figure: 1-motor, 2-impeller, 3-front blade bracket, 4-outer blade groove, 5-outer blade, 6-inner blade groove, 7-inner blade, 8-filter, 9-bearing, 10-water inlet, 11-water outlet, 12-hydraulic float, 13-connecting rod, 14-oblique pipe, 15-blockage discharge outlet, 16-water pump housing. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 , the utility model provides a technical solution:

[0019] A centrifugal water pump anti-clogging structure comprises a motor 1, an impeller 2 and a water pump housing 16, wherein the right end of the water pump housing 16 is fixedly connected to the motor 1, the left end of the motor 1 is fixedly connected to the impeller 2, the left end of the impeller 2 is fixedly connected to the front blade bracket 3, the outside of the front blade bracket 3 is fixedly connected to the outer blade groove 4, the outer blade 5 is connected to the outer blade groove 4 by snapping, the inner side of the front blade bracket 3 is fixedly connected to the inner blade groove 6, the inner blade 7 is connected to the inner blade groove 6 by snapping, the right end of the front blade bracket 3 is fixedly connected to the inner side, the right end of the front blade bracket 3 is fixedly connected to the filter screen 8, the right end of the front blade bracket 3 is fixedly connected to the outer side, a bearing 9 is fixedly connected to the right end of the front blade bracket 3, a water inlet 10 is provided at the left end of the water pump housing 16, a water outlet 11 is provided at the right side of the upper end of the water pump housing 16, a hydraulic float 12 is provided inside the water outlet 11, a connecting rod 13 is fixedly connected to the left end of the hydraulic float 12, an oblique pipe 14 is fixedly connected to the left end of the connecting rod 13, and a blockage discharge port 15 is provided at the left side of the upper end of the water pump housing 16.

[0020] The left end of the front blade bracket 3 is annular, and there are three outer blade grooves 4, which are arranged on the outside of the front blade bracket 3, so that the front blade bracket 3 can prevent larger blockages from directly contacting the filter screen 8; there are three outer blade grooves 4, which are arranged on the outside of the front blade bracket 3, so that the front blade bracket 3 can discharge liquid to the surrounding when it rotates; there are three inner blade grooves 6, which are arranged on the inside of the front blade bracket 3, so that the liquid on the surface of the filter screen 8 flows to clean the blockages attached to the surface of the filter screen 8; the number of inner blades 7 is consistent with the number of inner blade grooves 6, and the number of outer blades 5 is consistent with the number of outer blade grooves 6, so that the inner blades 7 and the outer blades 5 form a whole, thereby increasing the efficiency of cleaning the filter screen and discharging blockages.

[0021] Working principle: After the centrifugal pump is connected to the delivery pipe, the liquid is injected into the pump body to fill the pump body, and then the motor 1 is turned on. The rotation of the motor 1 drives the impeller 2 to rotate. The rotation of the impeller 2 causes the liquid inside the pump body to rotate, so that the liquid flows out of the water outlet 11 and the blockage discharge port 15. The liquid flowing out of the water outlet 11 impacts the hydraulic float 12, so that the hydraulic float 12 rises, and the oblique pipe 14 is raised through the connecting rod 13, so that the blockage discharge port 15 is closed. At the same time, negative pressure is generated inside the pump body to make the liquid enter from the water inlet 10. The liquid enters through the front blade bracket 3, and then enters the filter screen 8. After being screened by the filter screen 8, it enters the cavity of the impeller 2. After being pressurized by the impeller 2, the liquid is discharged through the water outlet 11. When there is a blockage in the conveyed liquid, the ring at the front end of the front blade bracket 3 can screen the blockage, so that the larger blockage cannot enter the front blade bracket 3, and it stays on the outside of the front blade bracket 3. The flow of the liquid makes the larger blockage contact the front blade bracket 3 from the side. Due to the rotation of the front blade bracket 3, the front blade bracket 3 breaks it. The smaller blockage can directly enter the interior of the front blade bracket 3, and will pass through the obstruction of the filter screen 8 and adhere to the surface of the filter screen 8. Through the movement of the inner blade 7 and the rotation of the front blade 3 bracket, the liquid flows on the surface of the filter screen 8, so as to clean the surface of the filter screen 8, so that the blockage moves around the inner blade 7 and the outer blade 5. When there are many blockages blocking the filter screen 8, the liquid near the impeller 2 is pumped out, so that the pressure at the water outlet 11 becomes low, the hydraulic float 12 drops, and drops through the connecting rod 13 oblique pipe 14, and the blockage is discharged. The outlet 15 is opened, and the front blade bracket 3 drives the inner blade 7 and the outer blade 5 to rotate, so that the blockage is discharged from the blockage outlet 15. The reduction of the blockage restores the pump system to normal, and the liquid re-enters the impeller 2 cavity. The rotation of the impeller 2 rotates the liquid inside the pump body, so that the liquid is discharged from the water outlet 11. The liquid flowing out of the water outlet 11 impacts the hydraulic float 12, so that the hydraulic float 12 rises, and the oblique pipe 14 is lifted through the connecting rod 13, so that the blockage discharge outlet 15 is closed, thereby achieving the anti-blockage function.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-clogging structure for a centrifugal water pump, comprising a motor (1), an impeller (2) and a water pump housing (16), characterized in that: The right end of the water pump housing (16) is fixedly connected to a motor (1), the left end of the motor (1) is fixedly connected to an impeller (2), the left end of the impeller (2) is fixedly connected to a front blade bracket (3), the outside of the front blade bracket (3) is fixedly connected to an outer blade groove (4), the inside of the outer blade groove (4) is snap-connected to an outer blade (5), the inside of the front blade bracket (3) is fixedly connected to an inner blade groove (6), the inside of the inner blade groove (6) is snap-connected to an inner blade (7), the inside of the right end of the front blade bracket (3) is fixedly connected to an outer blade groove (4), the inner blade groove (6) is snap-connected to an inner blade (7), and the right end of the front blade bracket (3) is fixedly connected to an outer blade groove (4) on the outside. A filter screen (8) is fixedly connected to the front blade bracket (3); a bearing (9) is fixedly connected to the outer side of the right end of the front blade bracket (3); a water inlet (10) is provided at the left end of the water pump housing (16); a water outlet (11) is provided at the right side of the upper end of the water pump housing (16); a hydraulic float (12) is provided inside the water outlet (11); a connecting rod (13) is fixedly connected to the left end of the hydraulic float (12); an oblique pipe (14) is fixedly connected to the left end of the connecting rod (13); and a blockage discharge outlet (15) is provided at the left side of the upper end of the water pump housing (16).

2. The anti-clogging structure of a centrifugal water pump according to claim 1, characterized in that: The left end of the front blade bracket (3) is in a circular ring shape, and the front blade bracket (3) is rotatably connected to the water pump housing (16).

3. The anti-clogging structure of a centrifugal water pump according to claim 1, characterized in that: The number of the outer blade slots (4) is three, and the outer blade slots (4) are arranged on the outside of the front blade bracket (3).

4. The anti-clogging structure of a centrifugal water pump according to claim 1, characterized in that: The number of the inner blade slots (6) is three, and the inner blade slots (6) are arranged on the inner side of the front blade bracket (3).

5. The anti-clogging structure of a centrifugal water pump according to claim 1, characterized in that: The number of the inner blades (7) is consistent with the number of the inner blade slots (6), and the number of the outer blades (5) is consistent with the number of the outer blade slots (4).

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