Submersible sewage pump

Abstract

The utility model relates to a submersible sewage pump in the technical field of sewage pumps. And a pressure relief hole facilitating pressure reduction of the motor is formed in the first connecting pipe and comprises a water inlet hole, one end of the water inlet hole is connected with a limiting hole, the side wall of the limiting hole is connected with a water outlet hole and a through hole, and an adjusting assembly used for opening and closing the water inlet hole is installed in a hole cavity of the limiting hole. When the surface of a filter plate is blocked by large impurities and sewage is difficult to pass through the filter plate, the pressure in a first connecting pipe is increased, a piston moves leftwards, a water inlet hole is opened, water flows into the first connecting pipe through the water inlet hole, a limiting hole and a water outlet hole, pressure reduction is conducted on a motor in a pump body, and after the pressure is reduced, a spring pushes a limiting block, so that the motor is driven to rotate; and when a conductive elastic piece makes contact with a first conductive elastic piece, a motor is started, a connecting shaft drives an arc-shaped scraping plate to rotate by 180 degrees, impurities on the surface of a filter plate are cleaned, and sewage circulation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage pumps, in particular to a submersible sewage pump. Background Art

[0002] Pumps are often used to clean impurities in water. Submersible sewage pumps are designed and used mainly to treat sewage containing solid particles. However, if there are too many impurity particles, fibers, large debris, etc. in the sewage, these impurities may clog the pump body and cause the pump to malfunction.

[0003] For example, a submersible sewage pump disclosed in Chinese patent application number CN201922210984.7 has the following specific contents: a detachable filter mechanism includes a filter and hooks on both sides, a fixing ring is provided on the edge of the filter, and semi-annular hanging ears are provided on both sides of the fixing ring. The hooks on both sides transversely penetrate the left and right side walls of the water inlet, the inner end of the hook is provided with a hook groove, and the outer end of the hook is connected to a limit block. The hanging ears on both sides of the filter are fixed to the inner cavity of the water inlet by engaging with the hook groove. It has the following technical problems:

[0004] When the filter is clogged, if people fail to discover it in time, it is easy to cause the motor load to increase, which may cause the motor to overheat and burn out. The existing submersible sewage discharge is difficult to automatically clean large particles of impurities when the filter is clogged to reduce the motor load. Utility Model Content

[0005] In order to solve the problem of the filter being blocked and difficult to clean automatically proposed in the above background technology, the present invention provides the following technical solutions:

[0006] A submersible sewage pump, comprising a submersible pump;

[0007] A protection component is installed at the lower end of the submersible pump, and one end of the protection component is connected to a filter component.

[0008] The protection component includes a connecting pipe 1, a connecting pipe 2 is installed at the right end of the connecting pipe 1, and an arc-shaped scraper for cleaning the filter component is installed at the right end of the connecting pipe 2.

[0009] A pressure relief hole is provided inside the connecting pipe 1 to facilitate decompression of the motor. The pressure relief hole includes a water inlet hole. One end of the water inlet hole is connected to a limiting hole. The side wall of the limiting hole is connected to a water outlet hole and a through hole. An adjusting component for opening and closing the water inlet hole is installed in the hole cavity of the limiting hole.

[0010] Furthermore, the submersible pump includes a pump body, a top cover is installed on the upper end of the pump body, a sewage pipe is installed on the lower end of the pump body, an outer wall of one end of the sewage pipe is processed with an external thread, and a base is installed on the lower end of the pump body.

[0011] Furthermore, an internally threaded tube is installed at the left end of the connecting tube 1 for cooperating with the external thread to limit the connecting tube 1, and a sealing ring is installed inside the internally threaded tube.

[0012] Furthermore, a limiting plate is installed at the right end of the second connecting pipe, a plurality of bolts for limiting the filter assembly are installed in the middle of the limiting plate, and an arc-shaped platform is installed at the right end of the limiting plate.

[0013] Furthermore, a connecting shaft is installed at one end of the arc-shaped scraper, and a motor is installed at one end of the connecting shaft.

[0014] Furthermore, the adjustment component includes a short rod, one end of which is equipped with a piston for opening and closing the water inlet hole, a limit block is installed in the middle of the short rod, and the end of the piston close to the limit block is equipped with a conductive spring.

[0015] Furthermore, a conductive spring piece 1 is installed inside the limiting hole for cooperating with the conductive spring piece to control the motor to start, and a spring is installed inside the connecting tube 1 for controlling the adjustment component to reset.

[0016] Furthermore, the filter assembly includes a filter plate, the outer wall of the filter plate is installed with a frame, the outer wall of the frame is installed with a plurality of connecting blocks, and the middle part of the connecting block is processed with a groove for limiting the bolt.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] When the surface of the filter plate is clogged with large impurities, making it difficult for sewage to pass through the filter plate, the pressure inside the connecting pipe increases, causing the piston to move to the left, opening the water inlet, and water flows to the inside of the connecting pipe through the water inlet, limit hole and water outlet, which is used to reduce the pressure of the motor inside the pump body. After the pressure drops, the spring pushes the limit block, so that the piston continues to close the water inlet, and when the conductive spring piece contacts the conductive spring piece, the motor starts, causing the connecting shaft to drive the arc scraper to rotate 180 degrees, cleaning the impurities on the surface of the filter plate and facilitating the flow of sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the submersible pump of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the protective component of the utility model;

[0022] Figure 4 For this utility model Figure 3 A magnified view of point A;

[0023] Figure 5 This is a schematic diagram of the internal structure of the connecting pipe 1 of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0025] Figure 7 This is a schematic structural diagram of the filter assembly of the present invention.

[0026] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0027] 001-submersible pump;

[0028] 100-pump body, 110-top cover, 120-drain pipe, 121-external thread, 130-base;

[0029] 002-protection components;

[0030] 200 - Connecting pipe 1, 210 - Internally threaded pipe, 211 - Sealing ring, 220 - Connecting pipe 2, 230 - Pressure relief hole, 231 - Water inlet hole, 232 - Limiting hole, 233 - Water outlet hole, 234 - Through hole, 240 - Limiting plate, 241 - Bolt, 242 - Arc platform, 250 - Arc scraper, 251 - Connecting shaft, 252 - Motor, 260 - Adjusting assembly, 261 - Short rod, 262 - Piston, 263 - Limiting block, 264 - Conductive spring piece 2, 270 - Spring, 280 - Conductive spring piece 1;

[0031] 003-Filter component;

[0032] 300-filter plate, 310-frame, 311-connecting block, 312-groove. DETAILED DESCRIPTION

[0033] The following describes in detail the preferred specific implementations of the present invention, and provides a clear and complete description in conjunction with the accompanying drawings.

[0034] See also Figure 1-Figure 7 , the utility model provides a submersible sewage pump.

[0035] It includes a submersible pump 001, and the submersible pump 001 includes a pump body 100. The upper end of the pump body 100 is fixedly installed with a top cover 110 by bolts, and the lower end of the pump body 100 is fixedly installed with a sewage pipe 120. The right end outer wall of the sewage pipe 120 is processed with an external thread 121. The lower end of the pump body 100 is fixedly installed with a base 130 for supporting the pump body 100, so that the pump body 100 is relatively stable during operation.

[0036] A protection component 002 is installed at the lower end of the submersible pump 001, and one end of the protection component 002 is connected to a filter component 003 for filtering sewage.

[0037] The protective assembly 002 includes a connecting pipe 200. An internally threaded pipe 210 is fixedly mounted on the left end of the connecting pipe 200, which is used to engage with the external threads 121 to limit the position of the connecting pipe 200. A sealing ring 211 is installed inside the internally threaded pipe 210. The internal threads of the internally threaded pipe 210 engage with the external threads 121 to secure the connecting pipe 200 to the right end of the sewage pipe 120, thus locking the connecting pipe 200.

[0038] A second connecting pipe 220 is fixedly mounted on the right end of the first connecting pipe 200. A pressure relief hole 230 is provided within the first connecting pipe 200 to facilitate decompression of the motor. The pressure relief hole 230 includes a water inlet 231, one end of which is connected to a limiting hole 232. The sidewall of the limiting hole 232 is connected to a water outlet 233 and a through hole 234. An adjustment assembly 260 for opening and closing the water inlet 231 is installed within the cavity of the limiting hole 232. Water can enter the interior of the connecting pipe 200 through the water inlet hole 231, the limiting hole 232 and the water outlet hole 233 and be transported to the interior of the sewage pipe 120, so that when the filter component 003 is blocked, the pressure inside the connecting pipe 200 increases, and under the action of the through hole 234, the adjustment component 260 is driven to move to the left, opening the water inlet hole 231, so that water can continue to flow through the water inlet hole 231, the limiting hole 232 and the water outlet hole 233, reducing the pressure on the motor inside the pump body 100 to avoid damage to the motor inside the pump body 100.

[0039] A limit plate 240 is fixedly mounted on the right end of the second connecting pipe 220. A plurality of bolts 241 for limiting the position of the filter assembly 003 are mounted in the middle of the limit plate 240. A curved platform 242 is fixedly mounted on the right end of the limit plate 240. A curved scraper 250 for cleaning the filter assembly 003 is mounted on the right end of the second connecting pipe 220. A connecting shaft 251 is fixedly mounted on one end of the curved scraper 250. A motor 252 is mounted on one end of the connecting shaft 251. The motor 252 is fixedly mounted on the left outer wall of the limit plate 240. When the motor 252 is started, the connecting shaft 251 drives the curved scraper 250 to rotate 180 degrees, pushing away impurities on the surface of the filter assembly 003.

[0040] The adjustment assembly 260 includes a short rod 261, the right end of which is fixedly mounted with a piston 262 for opening and closing the water inlet hole 231, a limit block 263 is fixedly mounted in the middle of the short rod 261, and one end of the piston 262 close to the limit block 263 is fixedly mounted with a conductive spring 264.

[0041] A conductive spring 280 is mounted within the stop hole 232, cooperating with the conductive spring 264 to activate the motor 252. A spring 270 is mounted within the connecting tube 200, controlling the return of the adjustment assembly 260. Spring 270 is sleeved on the left side of the short rod 261 and positioned to the left of the stop block 263. When the piston 262 moves leftward, it simultaneously drives the stop block 263 to compress the spring 270, electrically connecting the conductive spring 264 and the conductive spring 280, activating the motor 252 and driving the curved scraper 250 to clean the filter assembly 003.

[0042] The filter assembly 003 includes a filter plate 300, and a frame 310 is fixedly installed on the outer wall of the filter plate 300, and the thickness of the frame 310 is consistent with the thickness of the arc platform 242. A plurality of connecting blocks 311 are fixedly installed on the outer wall of the frame 310, and a groove 312 for limiting the bolt 241 is processed in the middle part of the connecting block 311. The bolt head of the bolt 241 is in the groove cavity of the groove 312, and the horizontal height of the bolt head and the frame 310 are flush, which facilitates the arc scraper 250 to scrape off large impurities on the surface of the filter plate 300.

[0043] When the surface of the filter plate 300 is clogged with large impurities, making it difficult for sewage to pass through the filter plate 300, the pressure inside the connecting pipe 200 increases, causing the piston 262 to move to the left, opening the water inlet hole 231, and water flows into the interior of the connecting pipe 200 through the water inlet hole 231, the limit hole 232 and the water outlet hole 233, which is used to reduce the pressure of the motor inside the pump body 100. After the pressure drops, the spring 270 pushes the limit block 263, so that the piston 262 continues to close the water inlet hole 231, and when the conductive spring piece 264 and the conductive spring piece 280 are in contact, the motor 252 starts, causing the connecting shaft 251 to drive the arc scraper 250 to rotate 180 degrees, thereby cleaning the impurities on the surface of the filter plate 300 and facilitating the circulation of sewage.

[0044] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the present invention. In addition, any non-creative modifications made to the present invention by those skilled in the art without making any creative work still fall within the scope of protection of the present invention.

Claims

1. A submersible sewage pump, comprising a submersible pump (001), characterized in that: A protection component (002) is installed at the lower end of the submersible pump (001), and one end of the protection component (002) is connected to a filter component (003); The protection component (002) includes a connecting pipe (200), a connecting pipe (220) is installed at the right end of the connecting pipe (200), and a curved scraper (250) for cleaning the filter component (003) is installed at the right end of the connecting pipe (220); A pressure relief hole (230) is provided inside the connecting pipe (200) for facilitating decompression of the motor. The pressure relief hole (230) includes a water inlet hole (231). One end of the water inlet hole (231) is connected to a limiting hole (232). The side wall of the limiting hole (232) is connected to a water outlet hole (233) and a through hole (234). An adjusting component (260) for opening and closing the water inlet hole (231) is installed in the cavity of the limiting hole (232).

2. A submersible sewage pump according to claim 1, characterized in that: The submersible pump (001) comprises a pump body (100), a top cover (110) is installed at the upper end of the pump body (100), a sewage pipe (120) is installed at the lower end of the pump body (100), an outer wall of one end of the sewage pipe (120) is processed with an external thread (121), and a base (130) is installed at the lower end of the pump body (100).

3. A submersible sewage pump according to claim 2, characterized in that: The left end of the connecting pipe (200) is provided with an internal threaded pipe (210) for cooperating with the external thread (121) to limit the position of the connecting pipe (200), and a sealing ring (211) is provided inside the internal threaded pipe (210).

4. A submersible sewage pump according to claim 1, characterized in that: A limiting plate (240) is installed at the right end of the second connecting pipe (220), a plurality of bolts (241) for limiting the filter assembly (003) are installed in the middle of the limiting plate (240), and an arc-shaped platform (242) is installed at the right end of the limiting plate (240).

5. A submersible sewage pump according to claim 1, characterized in that: A connecting shaft (251) is installed at one end of the arc-shaped scraper (250), and a motor (252) is installed at one end of the connecting shaft (251).

6. A submersible sewage pump according to claim 5, characterized in that: The regulating assembly (260) comprises a short rod (261), one end of the short rod (261) is mounted with a piston (262) for opening and closing the water inlet hole (231), a limiting block (263) is mounted in the middle of the short rod (261), and one end of the piston (262) close to the limiting block (263) is mounted with a conductive spring (264).

7. A submersible sewage pump according to claim 6, characterized in that: A conductive spring (280) is installed inside the limiting hole (232) for cooperating with a conductive spring (264) to control the motor (252) to start, and a spring (270) is installed inside the connecting pipe (200) for controlling the adjustment component (260) to reset.

8. A submersible sewage pump according to claim 4, characterized in that: The filter assembly (003) comprises a filter plate (300), the outer wall of the filter plate (300) is provided with a frame (310), the outer wall of the frame (310) is provided with a plurality of connecting blocks (311), and the middle portion of the connecting block (311) is provided with a groove (312) for limiting the position of the bolt (241).

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