Corrosion-resistant centrifugal pump

Abstract

The corrosion-resistant centrifugal pump comprises a centrifugal pump body and a water inlet pipe, the peripheral wall of the water inlet pipe is fixedly sleeved with a connecting block, a containing bin is placed on the left side of the connecting block, the inner wall of the left side of the containing bin is fixedly connected with a connecting pipe, and one end of the connecting pipe penetrates through the containing bin and extends out of the containing bin. A filter plate is placed in the containing bin, a fixing assembly is arranged on the containing bin, and a supporting assembly is arranged on the connecting block. Water is filtered under the action of a first filter screen, a second filter screen and a third filter screen, impurities are prevented from entering the centrifugal pump body to corrode the centrifugal pump body as much as possible, the service life of the centrifugal pump body is prolonged, a containing bin is fixed under the action of a first threaded groove and a second threaded groove, a filter plate is convenient to disassemble, assemble and replace, and meanwhile through clearance fit between a fixing rod and a fixing hole, the service life of the filter plate is prolonged. And the stability of the placement bin is improved, and the device is more convenient and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, in particular to a corrosion-resistant centrifugal pump. Background Art

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

[0003] Chinese patent CN 217502061 U discloses a corrosion-resistant centrifugal pump. The patent discloses a technical solution for protecting the centrifugal pump, which solves the problem that the existing centrifugal pump has a poor anti-corrosion effect, making it easy for people to be eroded by rainwater when using it on rainy days, further corroding the centrifugal pump, affecting the subsequent use effect to a certain extent, thereby failing to meet people's use needs and causing more trouble during use.

[0004] When the device is in use, the centrifugal pump is shielded by the first waterproof shell and the second waterproof shell to prevent the centrifugal pump from being eroded by rainwater. However, if the water is not filtered when the centrifugal pump is in use, impurities on the water will adhere to the centrifugal wheel. The impurities react with water to corrode the centrifugal wheel and reduce its service life. Therefore, a corrosion-resistant centrifugal pump is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a corrosion-resistant centrifugal pump having the advantages of filtering and preventing corrosion, and solves the problem that when the device is in use, the centrifugal pump is shielded by a first waterproof shell and a second waterproof shell to prevent the centrifugal pump from being eroded by rainwater. However, when the centrifugal pump is in use, if the water is not filtered, impurities on the water will adhere to the centrifugal wheel, and the impurities will react with water to cause corrosion to the centrifugal wheel, thereby reducing the service life.

[0006] To achieve the above object, the utility model provides the following technical solutions: a corrosion-resistant centrifugal pump, comprising a centrifugal pump body and a water inlet pipe arranged on the centrifugal pump body, wherein a connecting block is fixedly sleeved on the outer peripheral wall of the water inlet pipe, a placing bin is placed on the left side of the connecting block, and a connecting pipe having one end penetrating the placing bin and extending to the outside thereof is fixedly connected to the left inner wall of the placing bin;

[0007] At least two filter plates are placed inside the placement bin, and the left side of the filter plate is fixedly inlaid with a first filter screen and a second filter screen in sequence from left to right, and a connecting rod is fixedly connected between two adjacent filter plates, and the connecting block and the side opposite to the placement bin are fixedly connected with a support rod;

[0008] The placement bin is provided with a fixing assembly for fixing the placement bin, and the connection block is provided with a supporting assembly for supporting the fixing assembly.

[0009] Furthermore, the placement bin is shaped like a cylinder with a hollow interior and a missing right side surface, the connecting block is a T-shaped cylinder, the connecting block extends to the interior of the placement bin, a third filter is installed on the filter plate and on the right side of the second filter, the apertures of the first filter, the second filter and the third filter decrease from left to right, and the support rod and the filter plate fit together.

[0010] Furthermore, the fixing assembly includes two baffles, which are respectively fixedly connected to the top and bottom surfaces of the placement bin, and the left sides of the two baffles are each provided with a fixing hole, and a fixing rod passes through the two fixing holes, and the inner peripheral wall of the placement bin is provided with a first threaded groove, and the outer peripheral wall of the connecting block is provided with a second threaded groove.

[0011] Furthermore, the first thread groove and the second thread groove are threadedly connected, and the fixing rod and the fixing hole are clearance-matched.

[0012] Furthermore, the support assembly includes two fixing plates, the two fixing plates are respectively fixedly connected to the top surface and the bottom surface of the connecting block, the left sides of the two fixing plates are fixedly connected with telescopic rods, the left sides of the two telescopic rods are fixedly connected with support plates, the two support plates are respectively fixedly connected to the two fixing rods, the outer peripheral walls of the two telescopic rods are respectively provided with springs, and the springs are respectively fixedly connected to the fixing plates and the support plates.

[0013] Furthermore, the fixing plate is an L-shaped plate, and the supporting plate and the baffle are fitted together.

[0014] Compared with the prior art, the technical solution of the present application has the following beneficial effects: the corrosion-resistant centrifugal pump filters water through the action of the first filter screen, the second filter screen, and the third filter screen, and tries to prevent impurities from entering the interior of the centrifugal pump body and corroding the interior thereof, thereby increasing the service life of the centrifugal pump body; the placement bin is fixed through the action of the first thread groove and the second thread groove, making it convenient for users to disassemble, assemble, and replace the filter plate; at the same time, the placement bin is fixed through the clearance fit between the fixing rod and the fixing hole, thereby improving the stability of the placement bin and making it more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2It is an enlarged schematic diagram of the internal structure of the placement bin and the connection block in the structure of the utility model;

[0017] Figure 3 It is a top view schematic diagram of the fixing plate in the structure of the utility model.

[0018] In the figure: 1 centrifugal pump body, 2 water inlet pipe, 3 connecting block, 4 placement bin, 5 connecting pipe, 6 support rod, 7 fixing plate, 8 telescopic rod, 9 spring, 10 support plate, 11 baffle, 12 fixing rod, 13 fixing hole, 14 first thread groove, 15 second thread groove, 16 connecting rod, 17 filter plate, 18 first filter screen, 19 second filter screen, 20 third filter screen. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3 In this embodiment, a corrosion-resistant centrifugal pump comprises a centrifugal pump body 1 and a water inlet pipe 2 arranged on the centrifugal pump body 1, a connection block 3 is fixedly sleeved on the outer peripheral wall of the water inlet pipe 2, a placement bin 4 is placed on the left side of the connection block 3, and a connection pipe 5 having one end penetrating through the placement bin 4 and extending to the outside thereof is fixedly connected to the left inner wall of the placement bin 4;

[0021] At least two filter plates 17 are placed inside the placement bin 4, and the left side of the filter plate 17 is fixedly inlaid with a first filter screen 18 and a second filter screen 19 from left to right in sequence, and a connecting rod 16 is fixedly connected between two adjacent filter plates 17, and the side opposite to the connection block 3 and the placement bin 4 is fixedly connected with a support rod 6;

[0022] Among them, the placement bin 4 is shaped like a cylinder with a hollow interior and a missing right side surface, the connecting block 3 is a T-shaped cylinder, the connecting block 3 extends to the interior of the placement bin 4, and a third filter screen 20 is installed on the filter plate 17 and on the right side of the second filter screen 19 (that is, there are three filter plates 17), the apertures of the first filter screen 18, the second filter screen 19 and the third filter screen 20 decrease from left to right, and the support rod 6 and the filter plate 17 are in close contact.

[0023] Specifically, the filter plate 17 is pushed, and the first filter screen 18, the second filter screen 19 and the third filter screen 20 are placed into the placement bin 4. The placement bin 4 and the connecting block 3 are fitted together, and the support rod 6 and the filter plate 17 are fitted together to fix the filter plate 17. Water enters the placement bin 4 through the transportation of the connecting pipe 5, and is filtered by the first filter screen 18, the second filter screen 19 and the third filter screen 20 to prevent impurities from entering the centrifugal pump body 1 as much as possible.

[0024] In this embodiment, a fixing component is provided on the placement bin 4, and the fixing component includes two baffles 11, and the two baffles 11 are respectively fixedly connected to the top surface and the bottom surface of the placement bin 4, and the left sides of the two baffles 11 are each provided with a fixing hole 13, and the two fixing holes 13 are each penetrated by a fixing rod 12, and the inner peripheral wall of the placement bin 4 is provided with a first threaded groove 14, and the outer peripheral wall of the connecting block 3 is provided with a second threaded groove.

[0025] The first thread groove 14 and the second thread groove 15 are threadedly connected, and the fixing rod 12 and the fixing hole 13 are clearance-matched.

[0026] Specifically, the placement bin 4 is rotated and fixedly installed on the connecting block 3 through the threaded connection between the first thread groove 14 and the second thread groove 15. The placement bin 4 and the connecting block 3 fit together, the fixing rod 12 and the fixing hole 13 are located on the same center line, the fixing rod 12 passes through the fixing hole 13, and the placement bin 4 is fixed through the clearance fit between the fixing rod 12 and the fixing hole 13.

[0027] In this embodiment, a support assembly is provided on the connecting block 3, and the support assembly includes two fixed plates 7, the two fixed plates 7 are fixedly connected to the top surface and the bottom surface of the connecting block 3 respectively, the left sides of the two fixed plates 7 are fixedly connected with telescopic rods 8, the left sides of the two telescopic rods 8 are fixedly connected with support plates 10, the two support plates 10 are fixedly connected with two fixed rods 12 respectively, and the outer peripheral walls of the two telescopic rods 8 are respectively provided with springs 9, and the springs 9 are fixedly connected with the fixed plates 7 and the support plates 10 respectively (that is, one end of the spring 9 is fixedly connected with the fixed plate 7, and the other end thereof is fixedly connected with the support plate 10).

[0028] The fixing plate 7 is an L-shaped plate, and the supporting plate 10 and the baffle plate 11 are fitted together.

[0029] The combination of the baffle 11, the fixed rod 12, the support plate 10, the fixed plate 7 and the telescopic rod 8 is equivalent to forming a sleeve and a moving rod. One end of the moving rod penetrates and extends to the interior of the sleeve. The outer side of the moving rod is fixedly connected to a limiting block located inside the sleeve. A through hole compatible with the moving rod is opened on one side of the sleeve.

[0030] Specifically, pull the support plate 10 so that the support plate 10 drives the fixed rod 12 to move, squeeze the telescopic rod 8 and the spring 9, so that the telescopic rod 8 and the spring 9 shrink, the placement bin 4 and the connecting block 3 fit together, the fixed rod 12 and the fixing hole 13 are located on the same center line, loosen the support plate 10, and push the fixed rod 12 to reset under the action of the spring 9.

[0031] The working principle of the above embodiment is as follows: pull the support plate 10, so that the support plate 10 drives the fixing rod 12 to move, squeeze the telescopic rod 8 and the spring 9, so that the telescopic rod 8 and the spring 9 are contracted, push the filter plate 17, place the first filter screen 18, the second filter screen 19 and the third filter screen 20 into the placement bin 4, rotate the placement bin 4, and fix the placement bin 4 on the connecting block 3 through the threaded connection between the first thread groove 14 and the second thread groove 15, so that the placement bin 4 and the connecting block 3 are fitted, and the fixing rod 12 and the fixing hole 13 are located On the same center line, loosen the support plate 10, and push the fixing rod 12 to reset under the action of the spring 9. The fixing rod 12 passes through the fixing hole 13, and the placement bin 4 is fixed through the clearance between the fixing rod 12 and the fixing hole 13. The support rod 6 and the filter plate 17 fit together to fix the filter plate 17. Water enters the interior of the placement bin 4 through the transportation of the connecting pipe 5, and is filtered through the first filter screen 18, the second filter screen 19 and the third filter screen 20 to prevent impurities from entering the interior of the centrifugal pump body 1 as much as possible.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] 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. A corrosion-resistant centrifugal pump, comprising a centrifugal pump body (1) and a water inlet pipe (2) arranged on the centrifugal pump body (1), characterized in that: A connection block (3) is fixedly mounted on the outer peripheral wall of the water inlet pipe (2); a storage bin (4) is placed on the left side of the connection block (3); and a connection pipe (5) is fixedly connected to the left inner wall of the storage bin (4), one end of which passes through the storage bin (4) and extends to the outside thereof; At least two filter plates (17) are placed inside the placement bin (4), and the left side of the filter plate (17) is fixedly inlaid with a first filter screen (18) and a second filter screen (19) in sequence from left to right, and a connecting rod (16) is fixedly connected between two adjacent filter plates (17), and the side opposite to the connection block (3) and the placement bin (4) is fixedly connected to a support rod (6); The placement bin (4) is provided with a fixing component, and the connection block (3) is provided with a supporting component.

2. A corrosion-resistant centrifugal pump according to claim 1, characterized in that: The placement bin (4) is in the shape of a cylinder with a hollow interior and a missing right side surface. The connection block (3) is a T-shaped cylinder. The connection block (3) extends to the interior of the placement bin (4). A third filter screen (20) is installed on the filter plate (17) and on the right side of the second filter screen (19). The apertures of the first filter screen (18), the second filter screen (19) and the third filter screen (20) decrease from left to right. The support rod (6) and the filter plate (17) are in close contact with each other.

3. A corrosion-resistant centrifugal pump according to claim 1, characterized in that: The fixing assembly comprises two baffles (11), the two baffles (11) being fixedly connected to the top surface and the bottom surface of the placement bin (4) respectively, the left sides of the two baffles (11) are each provided with a fixing hole (13), the two fixing holes (13) are each penetrated by a fixing rod (12), the inner peripheral wall of the placement bin (4) is provided with a first thread groove (14), and the outer peripheral wall of the connection block (3) is provided with a second thread groove.

4. A corrosion-resistant centrifugal pump according to claim 3, characterized in that: The first thread groove (14) and the second thread groove (15) are threadedly connected, and the fixing rod (12) and the fixing hole (13) are clearance-matched.

5. A corrosion-resistant centrifugal pump according to claim 3, characterized in that: The support assembly comprises two fixing plates (7), the two fixing plates (7) being fixedly connected to the top surface and the bottom surface of the connecting block (3) respectively, the left sides of the two fixing plates (7) being fixedly connected to telescopic rods (8), the left sides of the two telescopic rods (8) being fixedly connected to support plates (10), the two support plates (10) being fixedly connected to two fixing rods (12) respectively, and the outer peripheral walls of the two telescopic rods (8) being sleeved with springs (9), and the springs (9) being fixedly connected to the fixing plates (7) and the support plates (10) respectively.

6. A corrosion-resistant centrifugal pump according to claim 5, characterized in that: The fixing plate (7) is an L-shaped plate, and the supporting plate (10) and the baffle plate (11) are fitted together.

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