Impurity pump with pre-filtering function

Abstract

The utility model discloses an impurity pump with a pre-filtering function, and relates to the technical field of impurity pumps, the impurity pump comprises an impurity pump main body, a water inlet, a base, a filter screen and a scraper blade, one side of the impurity pump main body is provided with a water outlet, the water outlet is communicated with the interior of the impurity pump main body, the bottom of the impurity pump is provided with a water inlet, and the water inlet is communicated with the base. According to the impurity pump, the driving shaft of the impurity pump drives the connecting shaft to rotate, liquid is led into the flow guide pipe through suction force of the water inlet, the liquid is filtered through the filter screen, and the liquid is filtered through the filter screen. Impurities are intercepted on the surface of the filter screen, the spiral scraping plate is driven by the connecting shaft to rotate, the impurities on the surface of the filter screen are cleaned, the filtering efficiency is ensured, the device can achieve self-cleaning in the operation process, use of the pump body is not affected, and the filter screen is kept smooth.

Description

Technical Field

[0001] The utility model relates to the technical field of impurity pumps, in particular to an impurity pump with a pre-filtering function. Background Art

[0002] The impurity pump is a pump specially used for conveying liquids containing a lot of impurities. It can filter out impurities in the liquid, thereby maintaining the cleanliness and stability of the liquid. After searching, the Chinese patent announcement number CN209621646U discloses a self-priming impurity pump. Although the impurity pump has a slag discharge port on one side of the water inlet chamber for convenient removal of debris, and the slag discharge port is installed with a plug plate with screws, which is convenient for removing the screws without disassembling the pump body, and the disassembly and assembly speed is fast, simple and convenient, but the impurity pump needs to be stopped when cleaning, which affects the use of the impurity pump, thereby reducing the convenience of cleaning inside the impurity pump. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides an impurity pump with a pre-filtering function, which solves the problem in the background art that the existing impurity pump needs to stop the pump body before cleaning, thereby affecting the use of the impurity pump.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a debris pump with a pre-filtration function, comprising an debris pump body, a water inlet, a base, a filter screen and a scraper, a water outlet is arranged on one side of the debris pump body, the water outlet is communicated with the interior of the debris pump body, a water inlet is arranged at the bottom of the debris pump, an impeller is arranged at the bottom of the water inlet, the impeller is located inside one end of the top of the guide tube, the top end of the guide tube is connected to the bottom of the debris pump body by screws, a filter screen is arranged inside one end of the bottom of the guide tube, the bottom of the filter screen is welded to a sealing ring, the outer side of the sealing ring is welded to the bottom of the guide tube, a scraper is arranged inside the filter screen, the scraper is mounted on the outside of one end of the bottom of the connecting shaft, and the top end of the connecting shaft is coaxially connected to the driving shaft of the debris pump body.

[0005] Preferably, the bottom of the water inlet at the bottom of the impurity pump body is planar, and holes and grooves are evenly formed on the surface of the water inlet, wherein the holes and grooves on the surface of the water inlet are slightly smaller than the holes and grooves on the surface of the filter.

[0006] Preferably, an impeller is provided at the bottom of the water inlet, and the impeller is composed of a plurality of blades regularly distributed in a circular shape with equal intervals, and the top surface of the impeller is tightly fitted with the bottom surface of the water inlet. The blades on the surface of the impeller are arranged in an inclined state, and the impeller is driven to rotate by a connecting shaft. When the impeller rotates, it can promote the circulation of liquid and at the same time can scrape the surface of the water inlet to clean the surface of the water inlet.

[0007] Preferably, the base is sleeved on the outer wall of the bottom of the diversion pipe. There is a gap between the bottom of the diversion pipe and the bottom of the base. The inside of the base is of a hollow structure, and a plurality of channels are regularly distributed at equal intervals on the outer side of the base and communicate with the inside. The plurality of channels of the base are beneficial to blocking larger sundries.

[0008] Preferably, the filter screen is made of stainless steel. There is a gap between the outer wall of the filter screen and the inner wall of the diversion pipe, so that there is space reserved on the outer wall of the filter screen for the liquid to flow through, improving the flow rate of the filter screen.

[0009] Preferably, the surface of the scraper is provided with holes, and the scraper is of a spiral structure. The outer wall of the scraper is closely attached to the inner wall surface of the filter screen. The spiral scraper is beneficial to conveying the impurities out from the bottom of the filter screen while the scraper rotates.

[0010] The utility model provides an impurity pump with a pre-filtering function, which has the following beneficial effects:

[0011] (1). For the impurity pump with a pre-filtering function, the driving shaft of the impurity pump itself drives the connecting shaft to rotate, and the liquid is introduced into the diversion pipe by the suction force of the water inlet. The liquid is filtered by the filter screen, and the impurities are intercepted on the surface of the filter screen. The spiral scraper is driven by the connecting shaft to rotate to clean the impurities on the surface of the filter screen, ensuring the filtering efficiency. The device can achieve self-cleaning during operation, does not affect the use of the pump body, and keeps the filter screen unblocked.

[0012] (2). For the impurity pump with a pre-filtering function, when the liquid after pre-treatment filtration enters the water inlet through the diversion pipe, it can be further filtered through the holes on the surface of the water inlet, and the remaining small amount of impurities are filtered twice. At the same time, the impeller can be driven to rotate under the action of the connecting shaft. When the impeller rotates, it can promote the liquid flow and scrape the surface of the water inlet, thereby cleaning the impurities on the surface of the water inlet and preventing the surface impurities from blocking the surface of the water inlet.

[0013] Thus, it solves the problem that the existing impurity pump needs to stop the pump body for cleaning during cleaning, which in turn affects the use of the impurity pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 is a schematic diagram of the base structure of the utility model;

[0016] Figure 3 is a schematic sectional view of the diversion pipe structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the water inlet structure of the present utility model;

[0018] Figure 5 This is a schematic diagram of the impeller structure of the present utility model.

[0019] In the figure, 1 is the main body of the impurity pump; 2 is the water outlet; 3 is the water inlet; 4 is the guide pipe; 5 is the base; 6 is the connecting shaft; 7 is the filter screen; 8 is the scraper; 9 is the sealing ring; 10 is the impeller. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-5, an embodiment of the present utility model provides a technical solution: an impurity pump with a pre-filtering function, including an impurity pump main body 1, a water inlet 3, a base 5, a filter screen 7, and a scraper 8. A water outlet 2 is provided on one side of the impurity pump main body 1, and the water outlet 2 is communicated with the inside of the impurity pump main body 1. A water inlet 3 is provided at the bottom of the impurity pump, and an impeller 10 is provided at the bottom of the water inlet 3. The impeller 10 is located inside one end at the top of the guide pipe 4. One end at the top of the guide pipe 4 is connected to the bottom of the impurity pump main body 1 by screws. A filter screen 7 is provided inside the other end at the bottom of the guide pipe 4. The bottom of the filter screen 7 is welded to the sealing ring 9, and the outside of the sealing ring 9 is welded to the bottom of the guide pipe 4. A scraper 8 is provided inside the filter screen 7. The scraper 8 is sleeved outside the bottom end of the connecting shaft 6. One end at the top of the connecting shaft 6 is coaxially connected to the driving shaft of the impurity pump main body 1. The base 5 is sleeved on the outer wall of the bottom of the guide pipe 4, and there is a gap between the bottom of the guide pipe 4 and the bottom of the base 5. The inside of the base 5 is of a hollow structure, and a plurality of channels are regularly distributed at equal intervals on the outside of the base 5 and are communicated with the inside. The surface of the scraper 8 is provided with holes, and the scraper 8 is of a spiral structure. The outer wall of the scraper 8 is closely attached to the inner wall surface of the filter screen 7. When the device is in use, the driving shaft of the impurity pump itself will drive the rotating shaft to rotate. At the same time, suction will be generated at the water inlet 3 of the impurity pump, and the liquid will enter the inside of the guide pipe 4 from one end at the bottom of the guide pipe 4 and then flow towards the water inlet 3. When the liquid enters the guide pipe 4, it will enter the inside of the filter screen 7 from the bottom of the filter screen 7 and then pass through the filter screen 7 and enter the inside of the guide pipe 4. When the liquid enters the inside of the guide pipe 4, it will be filtered by the filter screen 7, so that the impurities can remain on the surface of the filter screen 7. The spiral scraper 8 is driven to rotate by the connecting shaft 6. While the scraper 8 rotates, it can scrape the inner wall surface of the filter screen 7, so that the impurities on the surface of the filter screen 7 can be cleaned, thus avoiding affecting the filtration of the filter screen 7. This impurity pump can perform self-cleaning while in use, without affecting the use of the pump body, and at the same time can maintain good fluidity of the filter screen 7.

[0022] The bottom of the water inlet 3 at the bottom of the impurity pump main body 1 is flat, and holes are evenly provided on the surface of the water inlet 3. An impeller 10 is provided at the bottom of the water inlet 3. The impeller 10 is composed of a plurality of blades regularly distributed at equal intervals in a ring shape, and the top surface of the impeller 10 is closely attached to the bottom surface of the water inlet 3. The blades on the surface of the impeller 10 are inclined. When the pre-treated and filtered liquid enters the inside of the water inlet 3 through the guide pipe 4, it can be further filtered through the holes on the surface of the water inlet 3 to perform secondary filtration on the remaining small amount of impurities. At the same time, the impeller 10 can be driven to rotate under the action of the connecting shaft 6. When the impeller 10 rotates, it can promote the flow of the liquid and scrape the surface of the water inlet 3, so as to clean the impurities on the surface of the water inlet 3 and prevent the surface impurities from blocking the surface of the water inlet 3.

[0023] Working principle: The drive shaft of the impurity pump drives the rotating shaft to rotate, generating suction to draw liquid from the bottom of the diversion pipe 4. At the same time, impurities are filtered out through the filter screen 7, and the liquid flows through the diversion pipe 4 into the water inlet 3. During this process, impurities will accumulate on the surface of the filter screen 7, and the spiral scraper 8 driven by the connecting shaft 6 will rotate and clean the inner wall of the filter screen 7 to maintain the cleanliness and fluidity of the filter screen 7. In addition, when the liquid enters the water inlet 3, the holes on the surface of the water inlet 3 will conduct secondary filtration to remove a small amount of remaining impurities. At the same time, the impeller 10 rotates under the action of the connecting shaft 6 to promote the flow of the liquid and scrape the surface of the water inlet 3 to clean the surface impurities, ensuring that the impurity pump can effectively filter the liquid and self-clean during use without affecting the normal use of the pump body.

[0024] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be construed as limiting the claimed invention.

[0025] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An impurity pump with pre-filtration function, characterized in that: The utility model comprises an impurity pump body (1), a water inlet (3), a base (5), a filter screen (7) and a scraper (8), wherein a water outlet (2) is arranged on one side of the impurity pump body (1), and the water outlet (2) is communicated with the interior of the impurity pump body (1); a water inlet (3) is arranged at the bottom of the impurity pump; an impeller (10) is arranged at the bottom of the water inlet (3); the impeller (10) is located inside the top end of a flow guide tube (4); the top end of the flow guide tube (4) is connected to the bottom of the impurity pump body (1) by screws; a filter screen (7) is arranged inside the bottom end of the flow guide tube (4); the bottom of the filter screen (7) is welded to a sealing ring (9); the outer side of the sealing ring (9) is welded to the bottom of the flow guide tube (4); a scraper (8) is arranged inside the filter screen (7); the scraper (8) is sleeved on the outside of the bottom end of a connecting shaft (6); the top end of the connecting shaft (6) is coaxially connected to the driving shaft of the impurity pump body (1).

2. According to claim 1, a foreign matter pump with a pre-filtering function, characterized in that: The bottom of the water inlet (3) at the bottom of the impurity pump body (1) is in a flat surface, and holes and grooves are evenly formed on the surface of the water inlet (3).

3. The impurity pump with pre-filtration function according to claim 1, characterized in that: An impeller (10) is arranged at the bottom of the water inlet (3); the impeller (10) is composed of a plurality of blades regularly distributed in an annular shape with equal spacing, and the top surface of the impeller (10) is tightly fitted to the bottom surface of the water inlet (3); the blades on the surface of the impeller (10) are arranged in an inclined shape.

4. The impurity pump with pre-filtration function according to claim 1, characterized in that: The base (5) is sleeved on the outer wall of the bottom of the guide tube (4), a gap exists between the bottom of the guide tube (4) and the bottom of the base (5), the interior of the base (5) is a hollow structure, and a plurality of channels are regularly distributed at equal intervals on the outside of the base (5) and communicate with the interior.

5. The impurity pump with pre-filtration function according to claim 1, characterized in that: The filter screen (7) is made of stainless steel, and there is a gap between the outer wall of the filter screen (7) and the inner wall of the flow guide tube (4).

6. The impurity pump with pre-filtering function according to claim 1, characterized in that: The scraper (8) has a surface with holes and grooves, and the scraper (8) has a spiral structure, and the outer wall of the scraper (8) is tightly fitted with the inner wall surface of the filter screen (7).

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