Suspension type submersible sewage pump

Abstract

The invention provides a suspension type submersible sewage pump and relates to the field of sewage pumps, and the suspension type submersible sewage pump comprises a pump body, an impeller arranged in the pump body, a water outlet formed in the pump body and a fixing seat arranged at the bottom of the pump body. In order to solve the problem that the conveying efficiency of a pump body is reduced due to the fact that impurities and garbage are prone to being attached to the outer side of a water inlet screen, a scraping mechanism is arranged, the impurities and garbage on the surface of a filter screen are scraped through the scraping mechanism, the conveying efficiency of the filter screen is improved, and the situation that the impurities and garbage block the filter screen and affect normal work of the pump body is prevented; by arranging the scraping mechanism, the problem that in the prior art, a filter screen is troublesome to replace, and the working efficiency is affected is solved; through the arrangement of the scraping mechanism, the problem that in the prior art, abrasion of the filter screen is accelerated due to a mechanical cleaning mode is solved; and by arranging the scraping mechanism, the problem that the manual maintenance cost is increased due to impurity accumulation in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sewage pumps, in particular to a suspended submersible sewage pump. BACKGROUND

[0002] The suspended submersible sewage pump is widely used in urban sewage treatment plants for conveying sludge and sewage. Its submersible design enables it to work underwater, unaffected by water surface fluctuations, ensuring stable delivery of sewage and improving sewage treatment efficiency. However, sewage contains a large amount of impurities and garbage, which easily adhere to the outside of the inlet screen, causing the inlet screen to become clogged, reducing the amount of sewage entering the pump and lowering the conveying efficiency of the suspended submersible sewage pump.

[0003] For example: Chinese invention patent (application number: 202111540131.5) discloses a suspended submersible sewage pump. The specification discloses that the pump body absorbs water through the inlet screen at its lower end during operation. However, the presence of a large amount of impurities and garbage on the water bottom can cause the inlet screen to become clogged, affecting subsequent normal water absorption. The above patent can be used as evidence of the defects in the prior art.

[0004] Therefore, we have made improvements and propose a suspended submersible sewage pump. SUMMARY

[0005] The present application aims to solve the problem of suspended submersible sewage pumps, which are prone to have impurities and garbage adhere to the outside of the inlet screen, reducing their conveying efficiency.

[0006] To achieve the above-mentioned purpose, the present application provides a suspended submersible sewage pump to improve the above-mentioned problems.

[0007] The present application is as follows: It comprises a pump body, an impeller arranged in the pump body, a water outlet arranged on the pump body, a fixed seat arranged at the bottom of the pump body, a base arranged on the fixed seat, a filter screen arranged in the fixed seat, and a scraping mechanism arranged on the fixed seat. The scraping mechanism comprises a rectangular frame arranged on the outside of the fixed seat, a drive shaft rotatably arranged on the rectangular frame, a roller arranged on the drive shaft, a scraper arranged on the roller, a sliding ring arranged in the fixed seat, a connecting disc rotatably arranged on the sliding ring, and a connecting shaft arranged on the connecting disc.

[0008] As the preferred technical scheme of the present application, a plurality of through holes are arranged on the connecting disc, the filter screen is arranged on the connecting disc, and the connecting shaft is arranged on the impeller at the end away from the connecting disc.

[0009] As the preferred technical scheme of the present application, a transmission shaft is rotatably arranged on the fixing seat, and the transmission shaft and the driving shaft are connected through a universal joint.

[0010] As the preferred technical scheme of the present application, a mounting groove is arranged on the fixing seat, an L-shaped rod is arranged on the rectangular frame, the L-shaped rod and the mounting groove are matched with each other, a sliding cavity is arranged in the fixing seat, a limiting column is slidably arranged on the fixing seat, a limiting hole is arranged on the L-shaped rod, the limiting hole and the limiting column are matched with each other, a jacking ring is arranged on the limiting column, the jacking ring is slidably arranged in the sliding cavity, a spring is arranged outside the limiting column, two ends of the spring are respectively connected to corresponding surfaces of the jacking ring and the sliding cavity, and a transmission block is arranged on the limiting column.

[0011] As the preferred technical scheme of the present application, two groups of transmission shafts are arranged, a driving gear and a transmission gear are respectively arranged on the two groups of transmission shafts, and the driving gear and the transmission gear are matched with each other.

[0012] As the preferred technical scheme of the present application, a worm is rotatably arranged on the fixing seat, and a worm wheel is arranged on the transmission shaft, and the worm and the worm wheel are matched with each other.

[0013] As the preferred technical scheme of the present application, a guide groove is arranged on the fixing seat, the sliding ring is slidably arranged on the guide groove, a strip-shaped groove is arranged on the connecting shaft, the connecting disc and the filter screen are slidably arranged on the strip-shaped groove, a gear ring is arranged on the connecting disc, a synchronous gear is arranged on the worm, and the synchronous gear is rotatably arranged on the fixing seat.

[0014] As the preferred technical scheme of the present application, the output ends of the synchronous gear and the gear ring are wedge-shaped, and the synchronous gear and the gear ring are matched with each other.

[0015] As the preferred technical scheme of the present application, a screw rod is rotatably arranged on the fixing seat, the sliding ring and the screw rod are connected through threads, an adjusting gear is arranged on the screw rod, an electric push rod is arranged on the fixing seat, a driving rack is arranged at the output end of the electric push rod, and the driving rack and the adjusting gear are matched with each other.

[0016] As the preferred technical scheme of the present application, a plurality of scrapers are arranged, and the plurality of scrapers are respectively arranged in a staggered distribution on the roller.

[0017] Compared with the prior art, the present application has the following beneficial effects: In the scheme of the present application: 1. In order to solve the problem in the prior art that impurities and garbage easily adhere to the outside of the water inlet screen during operation of the suspended submersible sewage pump, thereby reducing its conveying efficiency, the present application provides a scraping mechanism to scrape impurities and garbage on the surface of the filter screen, thereby improving the conveying efficiency of the filter screen and preventing impurities and garbage from clogging the filter screen and affecting the normal operation of the pump body; 2. The scraping mechanism is set up to release the limit of the L-shaped rod, so that the scraper is out of contact with the filter, making it convenient for workers to replace the filter, solving the problem of the existing technology that the filter replacement is troublesome and affects work efficiency; 3. Through the scraping mechanism, the scraper and the filter are in active contact. The scraper can be adjusted according to the actual surface conditions of the filter, reducing the wear of the filter and the scraper. This solves the problem of accelerated wear of the filter caused by mechanical cleaning in the existing technology. 4. Through the scraping mechanism, by driving the two sets of scrapers to rotate in opposite directions, the impurities and garbage in the sewage can be crushed, reducing the volume of the impurities and garbage, so that the impurities and garbage can pass through the filter and be finally discharged, thus preventing the impurities and garbage from accumulating at the bottom of the pump body. In this way, there is no need to manually remove the impurities and garbage, reducing maintenance costs, and solving the problem of increased manual maintenance costs caused by impurity accumulation in the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of the suspended submersible sewage pump provided in this application; Figure 2 A schematic diagram of the partial cross-sectional structure of the pump body of the suspended submersible sewage pump provided in this application; Figure 3 A schematic diagram of a partial cross-sectional structure of the base of the suspended submersible sewage pump provided in this application; Figure 4 A schematic diagram of the internal structure of the fixed base of the suspended submersible sewage pump provided in this application; Figure 5 Schematic diagram of the overall structure of the drum and scraper of the suspended submersible sewage pump provided in this application; Figure 6 The suspended submersible sewage pump provided in this application Figure 5 Schematic diagram of the enlarged structure of area A in the middle; Figure 7 This is a schematic diagram of the overall structure of the sliding ring of the suspended submersible sewage pump provided in this application; Figure 8 The suspended submersible sewage pump provided in this application Figure 7 Schematic diagram of the enlarged structure of area B in the middle.

[0019] Indicated in the figure: 1, pump body; 101, impeller; 102, water outlet; 2, fixed seat; 201, base; 202, filter screen; 203, scraping mechanism; 204, rectangular frame; 205, drive shaft; 206, roller; 207, scraper; 208, sliding ring; 209, connecting disc; 210, connecting shaft; 211, through hole; 212, transmission shaft; 213, universal joint; 214, mounting groove; 215, L-shaped rod; 216, sliding cavity; 217, limiting column; 218, limiting hole; 219, top driving ring; 220, spring; 221, transmission block; 222, drive gear; 223, transmission gear; 224, worm; 225, worm gear; 226, guide groove; 227, strip-shaped groove; 228, gear ring; 229, synchronous gear; 230, screw rod; 231, adjusting gear; 232, electric push rod; 233, drive rack. DETAILED DESCRIPTION

[0020] In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0021] As described in the background, the suspended submersible sewage pump is prone to have impurities and garbage attached to the outside of the water inlet screen during work, which reduces the conveying efficiency.

[0022] In order to solve this technical problem, the present application provides a suspended submersible sewage pump applied to a sewage pump.

[0023] Specifically, please refer to Figures 1-8 As shown in the figure, the suspended submersible sewage pump specifically comprises: a pump body 1, an impeller 101 arranged in the pump body 1, a water outlet 102 arranged on the pump body 1, a fixed seat 2 arranged at the bottom of the pump body 1, a base 201 arranged on the fixed seat 2, a filter screen 202 arranged in the fixed seat 2, and a scraping mechanism 203 arranged on the fixed seat 2. In the prior art, the impeller 101 rotates under the drive of the pump body 1, and after the sewage enters the impeller 101, it is thrown to the outer edge of the impeller 101 under the action of centrifugal force, so that the sewage is discharged from the water outlet 102. The water outlet 102 is a channel for discharging sewage from the pump body 1. The scraping mechanism 203 includes a rectangular frame 204 arranged on the outside of the fixed seat 2, a driving shaft 205 rotatably arranged on the rectangular frame 204, a roller 206 arranged on the driving shaft 205, a scraper 207 arranged on the roller 206, a sliding ring 208 arranged in the fixed seat 2, a connecting disk 209 rotatably arranged on the sliding ring 208, and a connecting shaft 210 arranged on the connecting disk 209.

[0024] The suspended submersible sewage pump provided by the present invention solves the problem in the prior art that impurities and garbage easily adhere to the outside of the water inlet screen during operation, thereby reducing the conveying efficiency thereof. The present application provides a scraping mechanism 203, which scrapes impurities and garbage on the surface of the filter screen 202, thereby improving the conveying efficiency of the filter screen 202 and preventing impurities and garbage from clogging the filter screen 202 and affecting the normal operation of the pump body 1. The scraping mechanism 203 is provided to release the limit of the L-shaped rod 215, so that the scraper 207 is separated from the filter 202, making it convenient for workers to replace the filter 202, thereby solving the problem of the inconvenience of replacing the filter 202 in the prior art and affecting work efficiency. The scraping mechanism 203 is provided, and the scraper 207 is in active contact with the filter 202. The movably connected scraper 207 can be adaptively adjusted according to the actual surface conditions of the filter 202, thereby reducing the wear of the filter 202 and the scraper 207. This solves the problem of accelerated wear of the filter 202 caused by mechanical cleaning methods in the prior art. By setting up the scraping mechanism 203, by driving the two sets of scrapers 207 to rotate in opposite directions, the impurities and garbage in the sewage can be crushed, and the volume of the impurities and garbage can be reduced so that the impurities and garbage can pass through the filter 202 and be finally discharged, thereby preventing the impurities and garbage from accumulating at the bottom of the pump body 1. In this way, there is no need to manually remove the impurities and garbage, reducing maintenance costs, and solving the problem of increased manual maintenance costs caused by impurity accumulation in the prior art.

[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] Example 1, please refer to Figure 1 、 Figure 2 、Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, a suspended submersible sewage pump has a plurality of through holes 211 provided on its connecting disk 209, a filter screen 202 is provided on the connecting disk 209, and an end of the connecting shaft 210 away from the connecting disk 209 is provided on the impeller 101; During use, the pump body 1 drives the impeller 101 to rotate, and sewage enters the pump body 1 through the filter screen 202 and the through hole 211. The impeller 101 rotates and drives the connecting shaft 210, the connecting plate 209 and the filter screen 202 to rotate synchronously. The scraper 207 on the roller 206 fits the filter screen 202. The scraper 207 scrapes away impurities and garbage on the surface of the filter screen 202 through the rotating filter screen 202, thereby improving the conveying efficiency of the filter screen 202 and preventing impurities and garbage from clogging the filter screen 202 and affecting the normal operation of the pump body 1. Furthermore, a transmission shaft 212 is rotatably provided on the fixing base 2, and the transmission shaft 212 and the driving shaft 205 are connected via a universal joint 213; Through the universal joint, the roller 206 on the drive shaft 205 can be adjusted, so that the scraper 207 on the roller 206 can be movably connected. The movably connected scraper 207 can be adaptively adjusted according to the actual situation of the surface of the filter screen 202 to avoid excessive friction, thereby reducing the wear of the scraper 207 itself. The fixedly connected scraper 207 may cause the filter screen 202 and the scraper 207 to wear quickly due to continuous high pressure.

[0029] Furthermore, a mounting groove 214 is provided on the fixing base 2, an L-shaped rod 215 is provided on the rectangular frame 204, the L-shaped rod 215 and the mounting groove 214 are adapted to each other, a sliding cavity 216 is provided in the fixing base 2, a limiting column 217 is slidably provided on the fixing base 2, a limiting hole 218 is provided on the L-shaped rod 215, the limiting hole 218 and the limiting column 217 are adapted to each other, a lifting ring 219 is provided on the limiting column 217, and the lifting ring 219 is slidably provided in the sliding cavity 216, a spring 220 is provided on the outside of the limiting column 217, and the two ends of the spring 220 are respectively connected to the corresponding surfaces of the lifting ring 219 and the sliding cavity 216, and a transmission block 221 is provided on the limiting column 217; The material of the limiting hole 218 is rubber, and is used to cooperate with the scraper 207 that is movably connected. When the limiting post 217 and the limiting hole 218 cooperate, as shown in FIG. Figure 6As shown, the limiting post 217 is used to limit the L-shaped rod 215. When the transmission block 221 is pulled outward, the transmission block 221 drives the limiting post 217 and the driving ring 219 to move synchronously. When the limiting post 217 disengages from the limiting hole 218, the limiting post 217 on the L-shaped rod 215 is released. The rectangular frame 204 is rotated by the action of the universal joint 213. The roller 206 and the scraper 207 on the rectangular frame 204 rotate synchronously. At this time, the scraper 207 is separated from the contact with the filter 202. At this time, the filter 202 is exposed, which is convenient for the staff to replace the filter 202. The scraping mechanism 203 is used to scrape away impurities and garbage on the surface of the filter 202, thereby improving the conveying efficiency of the filter 202 and preventing impurities and garbage from clogging the filter 202 and affecting the normal operation of the pump body 1. Through the movable contact between the scraper 207 and the filter 202, the movably connected scraper 207 can be adaptively adjusted according to the actual situation of the surface of the filter 202, reducing the wear of the filter 202 and the scraper 207. By releasing the limit on the L-shaped rod 215, the scraper 207 is separated from the contact with the filter 202, making it convenient for the staff to replace the filter 202.

[0030] Example 2 further optimizes the suspended submersible sewage pump provided in Example 1. Specifically, Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, there are two groups of transmission shafts 212, and the two groups of transmission shafts 212 are respectively provided with a driving gear 222 and a transmission gear 223, and the driving gear 222 and the transmission gear 223 are adapted to each other; When the driving gear 222 rotates, the driving gear 222 drives the transmission gear 223 to rotate in the opposite direction. At this time, the transmission shaft 212 rotates, and the transmission shaft 212 drives the universal joint 213, the driving shaft 205, the roller 206 and the scraper 207 to rotate. The two rollers 206 and the scraper 207 rotate in the opposite direction. The reverse rotation of the scraper 207 crushes the impurities and garbage in the sewage, reducing the volume of the impurities and garbage so that the impurities and garbage can pass through the filter 202 and be finally discharged. This prevents the impurities and garbage from accumulating at the bottom of the pump body 1. When there are too many impurities and garbage in the sewage, there is no need to manually remove the impurities and garbage, thereby reducing maintenance costs. Furthermore, a worm 224 is rotatably provided on the fixing base 2, and a worm wheel 225 is provided on the transmission shaft 212. The worm 224 and the worm wheel 225 are adapted to each other. When the worm 224 rotates, the worm 224 drives the worm wheel 225 to rotate, the worm wheel 225 drives the transmission shaft 212 to rotate, the transmission shaft 212 drives the driving gear 222 to rotate, and the driving gear 222 drives the transmission gear 223 to rotate. Further, the fixed seat 2 is provided with a guide groove 226, the sliding ring 208 is slidably arranged on the guide groove 226, the connecting shaft 210 is provided with a strip-shaped groove 227, the connecting disc 209 and the filter screen 202 are slidably arranged on the strip-shaped groove 227, the connecting disc 209 is provided with a gear ring 228, the worm 224 is provided with a synchronous gear 229, the synchronous gear 229 is rotatably arranged on the fixed seat 2, when the sliding ring 208 slides along the guide groove 226, the connecting disc 209 and the filter screen 202 on the sliding ring 208 synchronously displace along the strip-shaped groove 227, when the gear ring 228 on the connecting disc 209 meshes with the synchronous gear 229, the connecting shaft 210 drives the synchronous rotation of the connecting disc 209 gear ring 228, the gear ring 228 drives the synchronous gear 229 to rotate, and the synchronous gear 229 drives the worm 224 to rotate; Further, the output ends of the synchronous gear 229 and the gear ring 228 are wedge-shaped, the synchronous gear 229 and the gear ring 228 are matched with each other, and the output ends of the synchronous gear 229 and the gear ring 228 are wedge-shaped, so that the synchronous gear 229 and the gear ring 228 are prevented from being clamped when meshing; Further, the fixed seat 2 is rotatably provided with a lead screw 230, the sliding ring 208 and the lead screw 230 are connected through threads, the lead screw 230 is provided with an adjusting gear 231, the fixed seat 2 is provided with an electric push rod 232, the output end of the electric push rod 232 is provided with a driving rack 233, the driving rack 233 and the adjusting gear 231 are matched with each other, by starting the electric push rod 232, the output end of the electric push rod 232 drives the displacement of the driving rack 233, the driving rack 233 drives the rotation of the adjusting gear 231, the adjusting gear 231 drives the rotation of the lead screw 230, and the lead screw 230 drives the sliding ring 208 to slide along the guide groove 226; Further, the scraper 207 is provided with a plurality of scrapers 207, the plurality of scrapers 207 are staggered and distributed on the roller 206, the scrapers 207 are staggered and designed, and when the scrapers 207 on the two rollers 206 rotate, the impurities and garbage in the sewage can be crushed, so that the volume of the impurities and garbage is reduced; By driving the two groups of scrapers 207 to rotate in opposite directions through the scraping mechanism 203, the impurities and garbage in the sewage can be crushed, so that the volume of the impurities and garbage is reduced, the impurities and garbage can pass through the filter screen 202 and finally be discharged, so that the impurities and garbage are prevented from accumulating at the bottom of the pump body 1, and manual fishing of the impurities and garbage is not needed, so that the maintenance cost is reduced.

[0031] The use process of the suspended sewage pump is as follows: In use, the pump body 1 is started, the pump body 1 drives the impeller 101 to rotate, the sewage enters the pump body 1 from the filter screen 202 and the through hole 211, the impeller 101 rotates and drives the connecting shaft 210, the connecting disc 209 and the filter screen 202 to rotate synchronously, wherein the scraper 207 on the roller 206 and the filter screen 202 are attached, the impurities and garbage on the surface of the filter screen 202 are scraped off by the scraper 207 through the rotation of the filter screen 202, when the filter screen 202 needs to be replaced, the transmission block 221 is pulled outwards, the transmission block 221 drives the limiting column 217 and the ejecting ring 219 to displace synchronously, when the limiting column 217 is separated from the limiting hole 218, the limiting of the L-shaped rod 215 by the limiting column 217 is released, the rectangular frame 204 is rotated through the action of the universal joint 213, the roller 206 and the scraper 207 on the rectangular frame 204 rotate synchronously, at this time the scraper 207 is separated from the filter screen 202, so that the filter screen 202 is exposed, facilitating the replacement of the filter screen 202 by the staff, the electric push rod 232 is started, the output end of the electric push rod 232 drives the driving rack 233 to displace, the driving rack 233 drives the adjusting gear 231 to rotate, the adjusting gear 231 drives the lead screw 230 to rotate, the lead screw 230 drives the sliding ring 208 to slide along the guide groove 226, the connecting disc 209 and the filter screen 202 on the sliding ring 208 displace synchronously along the strip-shaped groove 227, when the gear ring 228 on the connecting disc 209 and the synchronous gear 229 are engaged, the connecting shaft 210 drives the connecting disc 209 and the gear ring 228 to rotate synchronously, the gear ring 228 drives the synchronous gear 229 to rotate, the synchronous gear 229 drives the worm 224 to rotate, the worm 224 drives the worm wheel 225 to rotate, the worm wheel 225 drives the transmission shaft 212 to rotate, the transmission shaft 212 drives the driving gear 222 to rotate, the driving gear 222 drives the transmission gear 223 to rotate, at this time the transmission shaft 212 rotates, the transmission shaft 212 drives the universal joint 213, the driving shaft 205, the roller 206 and the scraper 207 to rotate, wherein the two rollers 206 rotate reversely together with the scraper 207, the impurities and garbage in the sewage are crushed through the reverse rotation of the scraper 207, the volume of the impurities and garbage is reduced, so that the impurities and garbage can pass through the filter screen 202 and be finally discharged, thus preventing the impurities and garbage from accumulating at the bottom of the pump body 1, when the impurities and garbage in the sewage are too much, the impurities and garbage do not need to be manually fished out, thereby reducing the maintenance cost.

[0032] In the present application, unless specifically defined otherwise or the context clearly dictates otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be interpreted broadly, for example, they can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection or communication with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] Obviously, the above-described embodiments are only some embodiments of the present application, but not all the embodiments. The preferred embodiments of the present application are shown in the drawings, but do not limit the patent scope of the present application. The present application can be implemented in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or equivalently replace some technical features therein. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A suspended submersible sewage pump, comprising a pump body, an impeller arranged in the pump body, and a water outlet arranged on the pump body, characterized in that: It includes a fixing seat arranged at the bottom of the pump body, a base arranged on the fixing seat, a filter arranged in the fixing seat, and a scraping mechanism arranged on the fixing seat; The scraping mechanism includes a rectangular frame arranged outside the fixed seat, a driving shaft rotatably arranged on the rectangular frame, a roller arranged on the driving shaft, a scraper arranged on the roller, a sliding ring arranged in the fixed seat, a connecting disk rotatably arranged on the sliding ring, and a connecting shaft arranged on the connecting disk.

2. A suspended submersible sewage pump according to claim 1, characterized in that: The connecting disk is provided with a plurality of through holes, the filter screen is provided on the connecting disk, and one end of the connecting shaft away from the connecting disk is provided on the impeller.

3. A suspended submersible sewage pump according to claim 2, characterized in that: A transmission shaft is rotatably arranged on the fixing seat, and the transmission shaft and the driving shaft are connected through a universal joint.

4. A suspended submersible sewage pump according to claim 3, characterized in that: The fixing seat is provided with a mounting groove, the rectangular frame is provided with an L-shaped rod, the L-shaped rod and the mounting groove are adapted to each other, a sliding cavity is provided in the fixing seat, a limiting column is slidably provided on the fixing seat, a limiting hole is provided on the L-shaped rod, the limiting hole and the limiting column are adapted to each other, a pushing ring is provided on the limiting column, the pushing ring is slidably provided in the sliding cavity, a spring is provided on the outside of the limiting column, the two ends of the spring are respectively connected to the corresponding surfaces of the pushing ring and the sliding cavity, and a transmission block is provided on the limiting column.

5. A suspended submersible sewage pump according to claim 4, characterized in that: There are two groups of transmission shafts, and the two groups of transmission shafts are respectively provided with a driving gear and a transmission gear, and the driving gear and the transmission gear are adapted to each other.

6. A suspended submersible sewage pump according to claim 5, characterized in that: A worm is rotatably provided on the fixing seat, a worm wheel is provided on the transmission shaft, and the worm and the worm wheel are adapted to each other.

7. A suspended submersible sewage pump according to claim 6, characterized in that: A guide groove is provided on the fixed seat, the sliding ring is slidably set on the guide groove, a strip groove is provided on the connecting shaft, the connecting disk and the filter are both slidably set on the strip groove, a gear ring is provided on the connecting disk, a synchronous gear is provided on the worm, and the synchronous gear is rotatably set on the fixed seat.

8. A suspended submersible sewage pump according to claim 7, characterized in that: The output ends of the synchronous gear and the ring gear are both wedge-shaped, and the synchronous gear and the ring gear are adapted to each other.

9. A suspended submersible sewage pump according to claim 8, characterized in that: A screw is rotatably provided on the fixed seat, the sliding ring and the screw are connected by threads, an adjusting gear is provided on the screw, an electric push rod is provided on the fixed seat, a driving rack is provided at the output end of the electric push rod, and the driving rack and the adjusting gear are adapted to each other.

10. A suspended submersible sewage pump according to claim 9, characterized in that: There are multiple scrapers, and the multiple scrapers are distributed on the roller in a staggered manner.

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