Centrifugal pump based on rotor rotating to brush inner wall and use method thereof

Abstract

The present invention relates to a centrifugal pump, and more specifically, to a centrifugal pump based on a rotor rotating to brush the inner wall and a method for using the centrifugal pump. The pump comprises a pump body, the pump body comprises a driving motor and a pump cover arranged on the output side of the driving motor, the driving motor and the pump cover are connected by a flange, and an impeller is arranged on the outside of an output shaft arranged on one side of the output end of the driving motor, the output of the output shaft protrudes outward and extends to the front side of the pump cover, and a cleaning mechanism is arranged in the pump cover, and the cleaning mechanism comprises a partition. In the present invention, an inner and outer cavity is formed by the partition, and the outer cavity uses the impact force of the passing water to flush out the detached dirt, thereby solving the problem of being unable to use the dirt entering the pump cover in layers, thereby improving the functionality of the water, and at the same time, the inner cavity is not blocked by flexible bristles, ensuring the speed of water circulation.

Description

Technical Field

[0001] The invention relates to a centrifugal pump, in particular to a centrifugal pump based on a rotor rotating to brush an inner wall and a use method thereof. Background Art

[0002] At present, centrifugal pumps work by utilizing the rotation of the impeller to cause the water to undergo centrifugal motion. Before starting, the pump cover and the suction pipe must be filled with water, and then the motor is started so that the output 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 water pump through the flow channel of the volute pump casing.

[0003] However, when working for a long time, a lot of dirt will adhere to the inner wall of the centrifugal pump, and it is generally necessary to disassemble it regularly for cleaning. It is impossible to use the rotational force generated by the rotor driving the output shaft to clean the dirt during the working process;

[0004] Alternatively, a brush can be installed in the centrifugal pump, but the brush tends to reduce the flow rate of water. Summary of the invention

[0005] The object of the present invention is to provide a centrifugal pump based on the inner wall of the rotor rotating and a method of using the same, so as to solve the problem that a brush is installed in the centrifugal pump in the above background technology, but the brush often reduces the flow rate of water.

[0006] To achieve the above-mentioned purpose, one of the purposes of the present invention is to provide a centrifugal pump based on a rotor rotating to brush the inner wall, including a pump body, the pump body including a drive motor and a pump cover arranged on the output side of the drive motor, the drive motor and the pump cover are connected by a flange, and the drive motor is arranged on the output end side. An impeller is provided on the outside of the output shaft, and the output of the output shaft protrudes outward and extends to the front side of the pump cover. A cleaning mechanism is provided in the pump cover, and the cleaning mechanism includes a partition, which is an annular structure to isolate the pump cover to form two inner and outer cavities, and a plurality of groups of flexible bristles are arranged in a ring shape in the outer cavity, and each group of flexible bristles is provided with a plurality of bristles along the contour direction of the inner wall of the pump cover and is fixedly connected to the outer wall of the partition, and a plurality of connecting columns are arranged in a ring shape in the inner air, and the connecting columns are fixedly connected to the partition and the output shaft.

[0007] As a further improvement of the present technical solution, the cleaning mechanism also includes a recovery type cleaning component, which includes an outer ring and an inner ring arranged on the inner side of the outer ring, the outer ring is rotatably connected to the inner wall of the pump cover, the two sides of the inner ring are folded outward to form a recovery chamber with the inner wall of the outer ring, the outer wall of the outer ring is annularly provided with a plurality of dirt collecting grooves, a connecting plate is provided at the bottom of the outer side of the dirt collecting groove, and flexible bristles are installed outside the connecting plate to brush the dirt in the pump cover into the recovery chamber through the dirt collecting groove.

[0008] As a further improvement of the technical solution, a scraper is provided on the top outside the sewage collecting tank, a plurality of reserved grooves are opened on the side wall of the scraper along the length direction, and the outer end of the scraper is bent toward the side close to the sewage collecting tank.

[0009] As a further improvement of the present technical solution, a plurality of guide plates are provided in a ring shape on the inner side of the inner ring, and the plurality of guide plates are bent in one direction to form a guide groove, a flow limiting plate is provided in the guide groove, the flow limiting plate is fixedly connected to the inner wall of the inner ring, and is inclined toward the side of the guide plate corresponding to it.

[0010] As a further improvement of the present technical solution, the outer side of the outer ring is provided with multiple groups of limit blocks in a ring shape, and each group of limit blocks is symmetrically arranged with two. The inner wall of the pump cover is provided with sliding grooves that are plugged into and cooperate with the limit blocks at positions corresponding to the limit blocks, and the inner wall of the pump cover is provided with rotation grooves along the rotation path of the limit blocks.

[0011] As a further improvement of the technical solution, the outer side wall of the outer ring and the outer side wall of the pump cover are located in the same horizontal plane.

[0012] As a further improvement of the technical solution, the outer wall of the limit block is rotatably connected to a plurality of balls, and the outer wall of the balls fits with the inner wall of the rotation groove.

[0013] As a further improvement of the technical solution, a connecting ring is provided on the inner side of the outer ring, and the connecting ring is fixed to the folded portion of the outer side of the inner ring by bolts.

[0014] As a further improvement of the technical solution, a bracket is provided at the bottom of the driving motor, and the bottom side length of the bracket is greater than the top side length.

[0015] The second object of the present invention is to provide a method for using a centrifugal pump based on the inner wall of the rotor being rotated and brushed, including any one of the centrifugal pumps based on the inner wall of the rotor being rotated and brushed as described above, comprising the following method steps:

[0016] S1, the driving motor works to drive the output shaft to rotate;

[0017] S2. The rotating output shaft drives the partition to rotate. During the rotation, the flexible bristles outside the partition brush the inner wall of the pump cover, so that the dirt attached to the inner wall is separated by the force of the flexible bristles;

[0018] S3. The impeller and the partition rotate synchronously to allow external water to enter the pump cover. After entering, the water passes through the inner cavity formed by the partition and is discharged. Water also passes through the outer cavity formed by the partition, and the impact force of the passing water is used to flush out the detached dirt.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the centrifugal pump based on the inner wall being brushed by the rotating rotor and the method of using the same, inner and outer cavities are formed by the provided partitions. The outer cavity uses the impact force of the passing water to flush out the detached dirt, thereby solving the problem of being unable to utilize the dirt entering the pump cover in layers, thereby improving the functionality of the water. At the same time, the inner cavity is not blocked by flexible bristles, thereby ensuring the speed of water circulation.

[0021] 2. In the centrifugal pump based on the inner wall being brushed by the rotating rotor and the method of use thereof, the resistance generated during the rotation of the flexible bristles outside the connecting plate guides part of the dirt in the water into the recovery chamber through the dirt collecting trough, so as to collect the detached dirt, and at the same time clean the inner wall of the pump cover within the rotation range.

[0022] 3. In the centrifugal pump based on the rotor rotating to brush the inner wall and its use method, the adsorption force generated by the rotation of the flexible bristles outside the rotating roller is used to collect the surrounding dirt outside the dirt collecting tank, and then the force of the water flow is used to guide the dirt into the recovery chamber, which solves the problem that the dirt can easily flow away from the two sides of the laterally arranged flexible bristles, thereby improving the dirt collection quality of the flexible bristles.

[0023] 4. In the centrifugal pump based on the rotor rotating to brush the inner wall and its use method, the water flowing into the guide groove forms a flow velocity difference through the flow limiting plate, thereby generating a vortex. The rotation speed of the outer ring is increased by the action of the vortex, and the discharged water is absorbed and discharged after being processed by an external recovery cleaning component, so as to collect the dirt in the discharged water and improve the quality of the discharged water. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is an exploded view of the overall structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the partition structure of the present invention;

[0027] Figure 4 It is a cross-sectional view of the internal structure of the pump cover of the present invention;

[0028] Figure 5 It is a cross-sectional view of the pump cover structure of the present invention;

[0029] Figure 6 This is a structural disassembly diagram of the recycling cleaning component of the present invention;

[0030] Figure 7 It is a schematic diagram of the scraper and the dirt collecting tank structure of the present invention;

[0031] Figure 8 It is a schematic diagram of the overall side structure of the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the rotating roller and the connecting plate of the present invention;

[0033] Fig.10 It is a schematic diagram of the limit block structure of the present invention.

[0034] The meaning of each number in the figure is:

[0035] 100. Pump body;

[0036] 110, driving motor; 111, output shaft; 112, bracket;

[0037] 120, impeller;

[0038] 130, pump cover; 131, slide groove; 132, rotating groove;

[0039] 200. Cleaning agencies;

[0040] 210, partition; 211, connecting column;

[0041] 220, flexible bristles;

[0042] 230, recovery cleaning assembly; 231, outer ring; 2311, limit block; 2312, connecting ring; 2313, scraper; 2314, reserved groove; 2315, dirt collecting groove; 2316, connecting plate; 2317, rotating roller; 2318, ball bearing; 232, inner ring; 2321, guide plate; 2322, flow limiting plate. DETAILED DESCRIPTION

[0043] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0044] Example 1

[0045] See also Figure 1-Figure 3As shown, one of the purposes of this embodiment is to provide a centrifugal pump based on the inner wall of the rotor rotating and brushing, including a pump body 100, the pump body 100 includes a drive motor 110 and a pump cover 130 arranged on the output side of the drive motor 110, the drive motor 110 and the pump cover 130 are connected by a flange, and the drive motor 110 is arranged on the output end side of the output shaft 111 and the impeller 120 is provided on the outside, the output of the output shaft 111 protrudes outward and extends to the front side of the pump cover 130, and the pump cover 130 is provided with a cleaning mechanism 200, the cleaning mechanism 200 includes a partition 210, the partition 210 is annular structure to isolate the pump cover 130 to form two inner and outer cavities, a plurality of groups of flexible bristles 220 are arranged in an annular shape in the outer cavity, each group of flexible bristles 220 is arranged along the inner wall contour direction of the pump cover 130, and is fixedly connected to the outer wall of the partition 210, and a plurality of connecting columns 211 are arranged in annular shape in the inner air, and the connecting columns 211 are fixedly connected to the partition 210 and the output shaft 111.

[0046] When the present embodiment is working, firstly, the driving motor 110 is connected to the power supply so that the driving output shaft 111 rotates, and the rotating output shaft 111 is used to drive the partition 210 to rotate. During the rotation, the flexible bristles 220 outside the partition 210 brush the inner wall of the pump cover 130, so that the dirt attached to the inner wall is separated by the force of the flexible bristles 220. At the same time, the impeller 120 rotates to allow external water to enter the pump cover 130. At this time, most of the water passes through the inner cavity formed by the partition 210 and is discharged, and a small amount of water passes through the outer cavity formed by the partition 210. The detached dirt is flushed out by the impact force of the passing water, thereby solving the problem of not being able to utilize the water entering the pump cover 130 in layers, thereby improving the functionality of the water. At the same time, the inner cavity is not blocked by the flexible bristles 220, thereby ensuring the speed of water circulation.

[0047] It is worth noting that the flexible bristles 220 are made of rubber, fiber or plastic plastic structure to ensure sufficient hardness and reduce the wear on the contact surface during brushing.

[0048] Specifically, a bracket 112 is provided at the bottom of the driving motor 110 , and the bottom side length of the bracket 112 is greater than the top side length, so as to improve the stability of the pump body 100 during installation.

[0049] The second purpose of this embodiment is to provide a method for using a centrifugal pump based on the inner wall of the rotor being rotated and brushed, including any one of the centrifugal pumps based on the inner wall of the rotor being rotated and brushed, including the following method steps:

[0050] S1, the driving motor 110 drives the output shaft 111 to rotate;

[0051] S2, the rotating output shaft 111 drives the partition 210 to rotate, and during the rotation, the flexible bristles 220 outside the partition 210 brush the inner wall of the pump cover 130, so that the dirt attached to the inner wall is separated by the force of the flexible bristles 220;

[0052] S3. The impeller 120 and the partition 210 rotate synchronously to allow external water to enter the pump cover 130. After entering, the water passes through the inner cavity formed by the partition 210 and is discharged. Water also passes through the outer cavity formed by the partition 210, and the impact force of the passing water is used to flush out the detached dirt.

[0053] Example 2

[0054] In order to collect the dirt after separation, this embodiment is improved on the basis of embodiment 1. For details, please refer to Figure 4 and Figure 6 As shown, where:

[0055] The cleaning mechanism 200 also includes a recovery cleaning component 230, which includes an outer ring 231 and an inner ring 232 arranged on the inner side of the outer ring 231. The outer ring 231 is rotatably connected to the inner wall of the pump cover 130, and the two sides of the inner ring 232 are folded outward to form a recovery chamber with the inner wall of the outer ring 231. The outer wall of the outer ring 231 is annularly provided with a plurality of dirt collecting grooves 2315, and a connecting plate 2316 is provided at the bottom of the outer side of the dirt collecting groove 2315. Flexible bristles 220 are installed outside the connecting plate 2316 to brush the dirt in the pump cover 130 into the recovery chamber through the dirt collecting groove 2315.

[0056] In addition, the connecting plate 2316 is a transverse plate-shaped structure, and a plurality of flexible bristles 220 are arranged along the length direction of the connecting plate 2316 .

[0057] When the present embodiment is working, the outer ring 231 is rotated in the pump cover 130 due to the impact force of the water flow, and drives the connecting plate 2316 and the flexible bristles 220 outside the connecting plate 2316 to rotate synchronously. During the rotation of the flexible bristles 220 outside the connecting plate 2316, part of the dirt in the water is introduced into the recovery chamber through the dirt collecting groove 2315 by utilizing its own resistance, so as to collect the separated dirt, and at the same time, the inner wall of the pump cover 130 within the rotation range can be cleaned.

[0058] Example 3

[0059] In order to improve the cleaning strength of the flexible bristles 220 outside the connecting plate 2316, the present embodiment is different from the embodiment 2 in that: Figure 7As shown, a scraper 2313 is provided on the top outside the sewage collecting tank 2315, and a plurality of reserved grooves 2314 are opened on the side wall of the scraper 2313 along the length direction, and the outer end of the scraper 2313 is bent toward the side close to the sewage collecting tank 2315, so that the bent part is used to scrape the dirt attached to the inner wall of the pump cover 130 within the rotation range, and the scraped dirt falls to the outside of the sewage collecting tank 2315 through the reserved groove 2314, and then the flexible bristles 220 outside the connecting plate 2316 guide the dirt outside the sewage collecting tank 2315 into the recovery chamber, so that the scraper 2313 is used to increase the cleaning range and cleaning intensity, so as to improve the cleaning quality.

[0060] Example 4

[0061] In order to improve the dirt collection quality of the flexible bristles 220 outside the connecting plate 2316, the present embodiment is different from the embodiment 3 in that: Fig. 9 As shown, the connecting plate 2316 is a longitudinal plate structure, and two are symmetrically arranged. A rotating roller 2317 is rotatably connected between the two connecting plates 2316. A plurality of flexible bristles 220 are arranged in a ring shape outside the rotating roller 2317. When working, the flexible bristles 220 are driven by the resistance of water to rotate the rotating roller 2317 synchronously, and then the adsorption force generated by the rotation of the flexible bristles 220 outside the rotating roller 2317 is used to collect the surrounding dirt outside the dirt collecting tank 2315, and then the force of the water flow is used to guide the dirt into the recovery chamber, which solves the problem that the dirt is easy to flow away from the two sides of the laterally arranged flexible bristles 220, thereby improving the dirt collection quality of the flexible bristles 220.

[0062] Example 5

[0063] In order to collect the dirt in the discharged water, this embodiment is different from embodiment 2 in that: Figure 6 As shown, the inner side of the inner ring 232 is provided with a plurality of guide plates 2321 in an annular shape, and the plurality of guide plates 2321 are bent in one direction to form guide grooves. Figure 8 As shown, the guide groove formed between two adjacent guide plates 2321 is used to make the inflowing liquid flow in an inclined direction. In addition, a flow limiting plate 2322 is provided in the guide groove. The flow limiting plate 2322 is fixedly connected to the inner wall of the inner ring 232 and is inclined toward the side of the corresponding guide plate 2321. The flow limiting plate 2322 causes the water flowing into the guide groove to form a flow velocity difference, thereby generating a vortex. The rotation speed of the outer ring 231 is increased by the action of the vortex, and the discharged water is absorbed and discharged after being processed by the external recovery cleaning component 230, so as to collect the dirt in the discharged water and improve the quality of the discharged water.

[0064] Example 6

[0065] In order to facilitate the disassembly of the outer ring 231 and the inner ring 232, the present embodiment is different from the second embodiment in that Figure 5 and Figure 6 As shown, where:

[0066] The outer side of the outer ring 231 is provided with a plurality of groups of limit blocks 2311 in an annular shape, and each group of limit blocks 2311 is symmetrically provided with two groups. The inner wall of the pump cover 130 is provided with a slide groove 131 corresponding to the position of the limit block 2311, and the inner wall of the pump cover 130 is provided with a rotation groove 132 along the rotation path of the limit block 2311. When in use, the limit block 2311 is inserted into the slide groove 131, and then the pump cover 130 is connected to the drive motor 110 through the flange, and the outer wall of the outer ring 231 is connected to the outer wall of the pump cover 130. The outer walls are located in the same horizontal plane, so that the outer ring 231 is limited by the resistance of the flange. At the same time, the limit block 2311 rotates along the rotating groove 132. When disassembling, the flange is removed, and then the limit block 2311 is aligned with the slide groove 131 to pull out the integrated structure formed by the outer ring 231 and the inner ring 232. In addition, a connecting ring 2312 is provided on the inner side of the outer ring 231, and the connecting ring 2312 is fixed to the folded part of the outer side of the inner ring 232 by bolts to facilitate the disassembly of the inner ring 232.

[0067] Furthermore, the outer wall of the limit block 2311 is rotatably connected to a plurality of balls 2318 , and the outer wall of the balls 2318 fits against the inner wall of the rotating groove 132 , so that the friction force generated during the rotation of the limit block 2311 can be reduced through the rotation of the balls 2318 .

[0068] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A centrifugal pump based on a rotor rotating to brush the inner wall, comprising a pump body (100), the pump body (100) comprising a drive motor (110) and a pump cover (130) arranged on the output side of the drive motor (110), the drive motor (110) and the pump cover (130) being connected via a flange, and an impeller (120) being arranged outside an output shaft (111) arranged on one side of the output end of the drive motor (110), characterized in that: The output side of the output shaft (111) protrudes outward and extends to the front side of the pump cover (130). The pump cover (130) is provided with a cleaning mechanism (200). The cleaning mechanism (200) comprises a partition (210). The partition (210) is an annular structure to separate the pump cover (130) to form two inner and outer cavities. A plurality of groups of flexible bristles (220) are provided in an annular shape in the outer cavity. Each group of flexible bristles (220) is provided along the inner wall contour direction of the pump cover (130) and is fixedly connected to the outer wall of the partition (210). A plurality of connecting columns (211) are provided in an annular shape in the inner cavity. The connecting columns (211) are fixedly connected to the partition (210) and the output shaft (111). The cleaning mechanism (200) further comprises a recovery cleaning component (230), the recovery cleaning component (230) comprising an outer ring (231) and an inner ring (232) arranged inside the outer ring (231), the outer ring (231) being rotatably connected to the inner wall of the pump cover (130), the two sides of the inner ring (232) being folded outwards to form a recovery chamber with the inner wall of the outer ring (231), the outer wall of the outer ring (231) being provided with a plurality of dirt collecting grooves (2315) in an annular shape, the bottom of the outer side of the dirt collecting grooves (2315) being provided with a connecting plate (2316), and the outside of the connecting plate (2316) being provided with flexible bristles (220) to brush dirt in the pump cover (130) into the recovery chamber through the dirt collecting grooves (2315).

2. The centrifugal pump based on the rotor rotating and brushing the inner wall according to claim 1, characterized in that: A scraper (2313) is provided on the top outside the dirt collecting tank (2315), a plurality of reserved grooves (2314) are provided on the side wall of the scraper (2313) along the length direction, and the outer end of the scraper (2313) is bent toward a side close to the dirt collecting tank (2315).

3. The centrifugal pump based on the rotor rotating and brushing the inner wall according to claim 1, characterized in that: The inner side of the inner ring (232) is provided with a plurality of guide plates (2321) in an annular shape, and the plurality of guide plates (2321) are all bent in one direction to form a guide groove, and a flow limiting plate (2322) is provided in the guide groove, and the flow limiting plate (2322) is fixedly connected to the inner wall of the inner ring (232) and is inclined toward a side close to the corresponding guide plate (2321).

4. The centrifugal pump based on the rotor rotating and brushing the inner wall according to claim 1, characterized in that: The outer side of the outer ring (231) is provided with a plurality of groups of limit blocks (2311) in an annular shape, and each group of limit blocks (2311) is symmetrically provided with two groups of limit blocks. A slide groove (131) for plugging and cooperating with the limit blocks (2311) is provided at a position of the inner wall of the pump cover (130) corresponding to the limit blocks (2311), and a rotation groove (132) is provided on the inner wall of the pump cover (130) along a rotation path of the limit blocks (2311).

5. The centrifugal pump based on the rotor rotating and brushing the inner wall according to claim 4, characterized in that: The outer wall of the outer ring (231) and the outer wall of the pump cover (130) are located on the same horizontal plane.

6. The centrifugal pump based on the rotor rotating and brushing the inner wall according to claim 4, characterized in that: The outer wall of the limit block (2311) is rotatably connected to a plurality of balls (2318), and the outer wall of the balls (2318) fits in contact with the inner wall of the rotation groove (132).

7. The centrifugal pump based on the rotor rotating and brushing the inner wall according to claim 1, characterized in that: A connecting ring (2312) is provided on the inner side of the outer ring (231), and the connecting ring (2312) is fixed to the folded-over portion of the outer side of the inner ring (232) by means of bolts.

8. The centrifugal pump based on the rotor rotating and brushing the inner wall according to claim 1, characterized in that: A bracket (112) is provided at the bottom of the driving motor (110), and the bottom side length of the bracket (112) is greater than the top side length.

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